1 /*
2 * Copyright (c) 1998-2013 Proofpoint, Inc. and its suppliers.
3 * All rights reserved.
4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved.
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * By using this file, you agree to the terms and conditions set
9 * forth in the LICENSE file which can be found at the top level of
10 * the sendmail distribution.
11 *
12 */
13
14 #include <sendmail.h>
15
16 SM_RCSID("@(#)$Id: conf.c,v 8.1192 2014-01-27 18:23:21 ca Exp $")
17
18 #include <sm/sendmail.h>
19 #include <sendmail/pathnames.h>
20 #if NEWDB
21 # include "sm/bdb.h"
22 #endif
23
24 #include <daemon.h>
25 #include "map.h"
26 #include <ratectrl.h>
27
28 #ifdef DEC
29 # if NETINET6
30 /* for the IPv6 device lookup */
31 # define _SOCKADDR_LEN
32 # include <macros.h>
33 # endif /* NETINET6 */
34 #endif /* DEC */
35
36 # include <sys/ioctl.h>
37 # include <sys/param.h>
38
39 #include <limits.h>
40 #if NETINET || NETINET6
41 # include <arpa/inet.h>
42 #endif
43 #if HASULIMIT && defined(HPUX11)
44 # include <ulimit.h>
45 #endif
46 #if STARTTLS
47 # include "tls.h"
48 #endif
49
50 static void setupmaps __P((void));
51 static void setupmailers __P((void));
52 static void setupqueues __P((void));
53 static int get_num_procs_online __P((void));
54 static int add_hostnames __P((SOCKADDR *));
55
56 #if NETINET6 && NEEDSGETIPNODE
57 static struct hostent *sm_getipnodebyname __P((const char *, int, int, int *));
58 static struct hostent *sm_getipnodebyaddr __P((const void *, size_t, int, int *));
59 #else /* NETINET6 && NEEDSGETIPNODE */
60 #define sm_getipnodebyname getipnodebyname
61 #define sm_getipnodebyaddr getipnodebyaddr
62 #endif /* NETINET6 && NEEDSGETIPNODE */
63
64
65 /*
66 ** CONF.C -- Sendmail Configuration Tables.
67 **
68 ** Defines the configuration of this installation.
69 **
70 ** Configuration Variables:
71 ** HdrInfo -- a table describing well-known header fields.
72 ** Each entry has the field name and some flags,
73 ** which are described in sendmail.h.
74 **
75 ** Notes:
76 ** I have tried to put almost all the reasonable
77 ** configuration information into the configuration
78 ** file read at runtime. My intent is that anything
79 ** here is a function of the version of UNIX you
80 ** are running, or is really static -- for example
81 ** the headers are a superset of widely used
82 ** protocols. If you find yourself playing with
83 ** this file too much, you may be making a mistake!
84 */
85
86
87 /*
88 ** Header info table
89 ** Final (null) entry contains the flags used for any other field.
90 **
91 ** Not all of these are actually handled specially by sendmail
92 ** at this time. They are included as placeholders, to let
93 ** you know that "someday" I intend to have sendmail do
94 ** something with them.
95 */
96
97 struct hdrinfo HdrInfo[] =
98 {
99 /* originator fields, most to least significant */
100 { "resent-sender", H_FROM|H_RESENT, NULL },
101 { "resent-from", H_FROM|H_RESENT, NULL },
102 { "resent-reply-to", H_FROM|H_RESENT, NULL },
103 { "sender", H_FROM, NULL },
104 { "from", H_FROM, NULL },
105 { "reply-to", H_FROM, NULL },
106 { "errors-to", H_FROM|H_ERRORSTO, NULL },
107 { "full-name", H_ACHECK, NULL },
108 { "return-receipt-to", H_RECEIPTTO, NULL },
109 { "delivery-receipt-to", H_RECEIPTTO, NULL },
110 { "disposition-notification-to", H_FROM, NULL },
111
112 /* destination fields */
113 { "to", H_RCPT, NULL },
114 { "resent-to", H_RCPT|H_RESENT, NULL },
115 { "cc", H_RCPT, NULL },
116 { "resent-cc", H_RCPT|H_RESENT, NULL },
117 { "bcc", H_RCPT|H_BCC, NULL },
118 { "resent-bcc", H_RCPT|H_BCC|H_RESENT, NULL },
119 { "apparently-to", H_RCPT, NULL },
120
121 /* message identification and control */
122 { "message-id", 0, NULL },
123 { "resent-message-id", H_RESENT, NULL },
124 #if !NO_EOH_FIELDS
125 { "message", H_EOH, NULL },
126 { "text", H_EOH, NULL },
127 #endif
128
129 /* date fields */
130 { "date", 0, NULL },
131 { "resent-date", H_RESENT, NULL },
132
133 /* trace fields */
134 { "received", H_TRACE|H_FORCE, NULL },
135 { "x400-received", H_TRACE|H_FORCE, NULL },
136 { "via", H_TRACE|H_FORCE, NULL },
137 { "mail-from", H_TRACE|H_FORCE, NULL },
138
139 /* miscellaneous fields */
140 { "comments", H_FORCE|H_ENCODABLE, NULL },
141 { "return-path", H_FORCE|H_ACHECK|H_BINDLATE, NULL },
142 { "content-transfer-encoding", H_CTE, NULL },
143 { "content-type", H_CTYPE, NULL },
144 { "content-length", H_ACHECK, NULL },
145 { "subject", H_ENCODABLE, NULL },
146 { "x-authentication-warning", H_FORCE, NULL },
147
148 { NULL, 0, NULL }
149 };
150
151
152
153 /*
154 ** Privacy values
155 */
156
157 struct prival PrivacyValues[] =
158 {
159 { "public", PRIV_PUBLIC },
160 { "needmailhelo", PRIV_NEEDMAILHELO },
161 { "needexpnhelo", PRIV_NEEDEXPNHELO },
162 { "needvrfyhelo", PRIV_NEEDVRFYHELO },
163 { "noexpn", PRIV_NOEXPN },
164 { "novrfy", PRIV_NOVRFY },
165 { "restrictexpand", PRIV_RESTRICTEXPAND },
166 { "restrictmailq", PRIV_RESTRICTMAILQ },
167 { "restrictqrun", PRIV_RESTRICTQRUN },
168 { "noetrn", PRIV_NOETRN },
169 { "noverb", PRIV_NOVERB },
170 { "authwarnings", PRIV_AUTHWARNINGS },
171 { "noreceipts", PRIV_NORECEIPTS },
172 { "nobodyreturn", PRIV_NOBODYRETN },
173 { "goaway", PRIV_GOAWAY },
174 { "noactualrecipient", PRIV_NOACTUALRECIPIENT },
175 { NULL, 0 }
176 };
177
178 /*
179 ** DontBlameSendmail values
180 */
181
182 struct dbsval DontBlameSendmailValues[] =
183 {
184 { "safe", DBS_SAFE },
185 { "assumesafechown", DBS_ASSUMESAFECHOWN },
186 { "groupwritabledirpathsafe", DBS_GROUPWRITABLEDIRPATHSAFE },
187 { "groupwritableforwardfilesafe",
188 DBS_GROUPWRITABLEFORWARDFILESAFE },
189 { "groupwritableincludefilesafe",
190 DBS_GROUPWRITABLEINCLUDEFILESAFE },
191 { "groupwritablealiasfile", DBS_GROUPWRITABLEALIASFILE },
192 { "worldwritablealiasfile", DBS_WORLDWRITABLEALIASFILE },
193 { "forwardfileinunsafedirpath", DBS_FORWARDFILEINUNSAFEDIRPATH },
194 { "includefileinunsafedirpath", DBS_INCLUDEFILEINUNSAFEDIRPATH },
195 { "mapinunsafedirpath", DBS_MAPINUNSAFEDIRPATH },
196 { "linkedaliasfileinwritabledir",
197 DBS_LINKEDALIASFILEINWRITABLEDIR },
198 { "linkedclassfileinwritabledir",
199 DBS_LINKEDCLASSFILEINWRITABLEDIR },
200 { "linkedforwardfileinwritabledir",
201 DBS_LINKEDFORWARDFILEINWRITABLEDIR },
202 { "linkedincludefileinwritabledir",
203 DBS_LINKEDINCLUDEFILEINWRITABLEDIR },
204 { "linkedmapinwritabledir", DBS_LINKEDMAPINWRITABLEDIR },
205 { "linkedserviceswitchfileinwritabledir",
206 DBS_LINKEDSERVICESWITCHFILEINWRITABLEDIR },
207 { "filedeliverytohardlink", DBS_FILEDELIVERYTOHARDLINK },
208 { "filedeliverytosymlink", DBS_FILEDELIVERYTOSYMLINK },
209 { "writemaptohardlink", DBS_WRITEMAPTOHARDLINK },
210 { "writemaptosymlink", DBS_WRITEMAPTOSYMLINK },
211 { "writestatstohardlink", DBS_WRITESTATSTOHARDLINK },
212 { "writestatstosymlink", DBS_WRITESTATSTOSYMLINK },
213 { "forwardfileingroupwritabledirpath",
214 DBS_FORWARDFILEINGROUPWRITABLEDIRPATH },
215 { "includefileingroupwritabledirpath",
216 DBS_INCLUDEFILEINGROUPWRITABLEDIRPATH },
217 { "classfileinunsafedirpath", DBS_CLASSFILEINUNSAFEDIRPATH },
218 { "errorheaderinunsafedirpath", DBS_ERRORHEADERINUNSAFEDIRPATH },
219 { "helpfileinunsafedirpath", DBS_HELPFILEINUNSAFEDIRPATH },
220 { "forwardfileinunsafedirpathsafe",
221 DBS_FORWARDFILEINUNSAFEDIRPATHSAFE },
222 { "includefileinunsafedirpathsafe",
223 DBS_INCLUDEFILEINUNSAFEDIRPATHSAFE },
224 { "runprograminunsafedirpath", DBS_RUNPROGRAMINUNSAFEDIRPATH },
225 { "runwritableprogram", DBS_RUNWRITABLEPROGRAM },
226 { "nonrootsafeaddr", DBS_NONROOTSAFEADDR },
227 { "truststickybit", DBS_TRUSTSTICKYBIT },
228 { "dontwarnforwardfileinunsafedirpath",
229 DBS_DONTWARNFORWARDFILEINUNSAFEDIRPATH },
230 { "insufficiententropy", DBS_INSUFFICIENTENTROPY },
231 { "groupreadablesasldbfile", DBS_GROUPREADABLESASLDBFILE },
232 { "groupwritablesasldbfile", DBS_GROUPWRITABLESASLDBFILE },
233 { "groupwritableforwardfile", DBS_GROUPWRITABLEFORWARDFILE },
234 { "groupwritableincludefile", DBS_GROUPWRITABLEINCLUDEFILE },
235 { "worldwritableforwardfile", DBS_WORLDWRITABLEFORWARDFILE },
236 { "worldwritableincludefile", DBS_WORLDWRITABLEINCLUDEFILE },
237 { "groupreadablekeyfile", DBS_GROUPREADABLEKEYFILE },
238 { "groupreadabledefaultauthinfofile",
239 DBS_GROUPREADABLEAUTHINFOFILE },
240 { NULL, 0 }
241 };
242
243 /*
244 ** Miscellaneous stuff.
245 */
246
247 int DtableSize = 50; /* max open files; reset in 4.2bsd */
248 /*
249 ** SETDEFAULTS -- set default values
250 **
251 ** Some of these must be initialized using direct code since they
252 ** depend on run-time values. So let's do all of them this way.
253 **
254 ** Parameters:
255 ** e -- the default envelope.
256 **
257 ** Returns:
258 ** none.
259 **
260 ** Side Effects:
261 ** Initializes a bunch of global variables to their
262 ** default values.
263 */
264
265 #define MINUTES * 60
266 #define HOURS * 60 MINUTES
267 #define DAYS * 24 HOURS
268
269 #ifndef MAXRULERECURSION
270 # define MAXRULERECURSION 50 /* max ruleset recursion depth */
271 #endif
272
273 void
setdefaults(e)274 setdefaults(e)
275 register ENVELOPE *e;
276 {
277 int i;
278 int numprocs;
279 struct passwd *pw;
280
281 numprocs = get_num_procs_online();
282 SpaceSub = ' '; /* option B */
283 QueueLA = 8 * numprocs; /* option x */
284 RefuseLA = 12 * numprocs; /* option X */
285 WkRecipFact = 30000L; /* option y */
286 WkClassFact = 1800L; /* option z */
287 WkTimeFact = 90000L; /* option Z */
288 QueueFactor = WkRecipFact * 20; /* option q */
289 QueueMode = QM_NORMAL; /* what queue items to act upon */
290 FileMode = (RealUid != geteuid()) ? 0644 : 0600;
291 /* option F */
292 QueueFileMode = (RealUid != geteuid()) ? 0644 : 0600;
293 /* option QueueFileMode */
294
295 if (((pw = sm_getpwnam("mailnull")) != NULL && pw->pw_uid != 0) ||
296 ((pw = sm_getpwnam("sendmail")) != NULL && pw->pw_uid != 0) ||
297 ((pw = sm_getpwnam("daemon")) != NULL && pw->pw_uid != 0))
298 {
299 DefUid = pw->pw_uid; /* option u */
300 DefGid = pw->pw_gid; /* option g */
301 DefUser = newstr(pw->pw_name);
302 }
303 else
304 {
305 DefUid = 1; /* option u */
306 DefGid = 1; /* option g */
307 setdefuser();
308 }
309 TrustedUid = 0;
310 if (tTd(37, 4))
311 sm_dprintf("setdefaults: DefUser=%s, DefUid=%ld, DefGid=%ld\n",
312 DefUser != NULL ? DefUser : "<1:1>",
313 (long) DefUid, (long) DefGid);
314 CheckpointInterval = 10; /* option C */
315 MaxHopCount = 25; /* option h */
316 set_delivery_mode(SM_FORK, e); /* option d */
317 e->e_errormode = EM_PRINT; /* option e */
318 e->e_qgrp = NOQGRP;
319 e->e_qdir = NOQDIR;
320 e->e_xfqgrp = NOQGRP;
321 e->e_xfqdir = NOQDIR;
322 e->e_ctime = curtime();
323 #if _FFR_EAI
324 e->e_smtputf8 = false;
325 #endif
326 SevenBitInput = false; /* option 7 */
327 MaxMciCache = 1; /* option k */
328 MciCacheTimeout = 5 MINUTES; /* option K */
329 LogLevel = 9; /* option L */
330 #if MILTER
331 MilterLogLevel = -1;
332 #endif
333 inittimeouts(NULL, false); /* option r */
334 PrivacyFlags = PRIV_PUBLIC; /* option p */
335 MeToo = true; /* option m */
336 SendMIMEErrors = true; /* option f */
337 SuperSafe = SAFE_REALLY; /* option s */
338 clrbitmap(DontBlameSendmail); /* DontBlameSendmail option */
339 #if MIME8TO7
340 MimeMode = MM_CVTMIME|MM_PASS8BIT; /* option 8 */
341 #else
342 MimeMode = MM_PASS8BIT;
343 #endif
344 for (i = 0; i < MAXTOCLASS; i++)
345 {
346 TimeOuts.to_q_return[i] = 5 DAYS; /* option T */
347 TimeOuts.to_q_warning[i] = 0; /* option T */
348 }
349 ServiceSwitchFile = "/etc/mail/service.switch";
350 ServiceCacheMaxAge = (time_t) 10;
351 HostsFile = _PATH_HOSTS;
352 PidFile = newstr(_PATH_SENDMAILPID);
353 MustQuoteChars = "@,;:\\()[].'";
354 MciInfoTimeout = 30 MINUTES;
355 MaxRuleRecursion = MAXRULERECURSION;
356 MaxAliasRecursion = 10;
357 MaxMacroRecursion = 10;
358 ColonOkInAddr = true;
359 DontLockReadFiles = true;
360 DontProbeInterfaces = DPI_PROBEALL;
361 DoubleBounceAddr = "postmaster";
362 MaxHeadersLength = MAXHDRSLEN;
363 MaxMimeHeaderLength = MAXLINE;
364 MaxMimeFieldLength = MaxMimeHeaderLength / 2;
365 MaxForwardEntries = 0;
366 FastSplit = 1;
367 MaxNOOPCommands = MAXNOOPCOMMANDS;
368 #if SASL
369 AuthMechanisms = newstr(AUTH_MECHANISMS);
370 AuthRealm = NULL;
371 MaxSLBits = INT_MAX;
372 #endif
373 #if STARTTLS
374 TLS_Srv_Opts = TLS_I_SRV;
375 if (NULL == EVP_digest)
376 EVP_digest = EVP_md5();
377 # if _FFR_TLSFB2CLEAR
378 TLSFallbacktoClear = true;
379 # endif
380 Srv_SSL_Options = SSL_OP_ALL;
381 Clt_SSL_Options = SSL_OP_ALL
382 # ifdef SSL_OP_NO_SSLv2
383 | SSL_OP_NO_SSLv2
384 # endif
385 # ifdef SSL_OP_NO_TICKET
386 | SSL_OP_NO_TICKET
387 # endif
388 ;
389 # ifdef SSL_OP_TLSEXT_PADDING
390 /* SSL_OP_TLSEXT_PADDING breaks compatibility with some sites */
391 Srv_SSL_Options &= ~SSL_OP_TLSEXT_PADDING;
392 Clt_SSL_Options &= ~SSL_OP_TLSEXT_PADDING;
393 # endif /* SSL_OP_TLSEXT_PADDING */
394 #endif /* STARTTLS */
395 #ifdef HESIOD_INIT
396 HesiodContext = NULL;
397 #endif
398 #if NETINET6
399 /* Detect if IPv6 is available at run time */
400 i = socket(AF_INET6, SOCK_STREAM, 0);
401 if (i >= 0)
402 {
403 InetMode = AF_INET6;
404 (void) close(i);
405 }
406 else
407 InetMode = AF_INET;
408 #if !IPV6_FULL
409 UseCompressedIPv6Addresses = true;
410 #endif
411 #else /* NETINET6 */
412 InetMode = AF_INET;
413 #endif /* NETINET6 */
414 ControlSocketName = NULL;
415 memset(&ConnectOnlyTo, '\0', sizeof(ConnectOnlyTo));
416 DataFileBufferSize = 4096;
417 XscriptFileBufferSize = 4096;
418 for (i = 0; i < MAXRWSETS; i++)
419 RuleSetNames[i] = NULL;
420 #if MILTER
421 InputFilters[0] = NULL;
422 #endif
423 RejectLogInterval = 3 HOURS;
424 #if REQUIRES_DIR_FSYNC
425 RequiresDirfsync = true;
426 #endif
427 #if _FFR_RCPTTHROTDELAY
428 BadRcptThrottleDelay = 1;
429 #endif
430 ConnectionRateWindowSize = 60;
431 #if _FFR_BOUNCE_QUEUE
432 BounceQueue = NOQGRP;
433 #endif
434 setupmaps();
435 setupqueues();
436 setupmailers();
437 setupheaders();
438 }
439
440 /*
441 ** SETDEFUSER -- set/reset DefUser using DefUid (for initgroups())
442 */
443
444 void
setdefuser()445 setdefuser()
446 {
447 struct passwd *defpwent;
448 static char defuserbuf[40];
449
450 DefUser = defuserbuf;
451 defpwent = sm_getpwuid(DefUid);
452 (void) sm_strlcpy(defuserbuf,
453 (defpwent == NULL || defpwent->pw_name == NULL)
454 ? "nobody" : defpwent->pw_name,
455 sizeof(defuserbuf));
456 if (tTd(37, 4))
457 sm_dprintf("setdefuser: DefUid=%ld, DefUser=%s\n",
458 (long) DefUid, DefUser);
459 }
460 /*
461 ** SETUPQUEUES -- initialize default queues
462 **
463 ** The mqueue QUEUE structure gets filled in after readcf() but
464 ** we need something to point to now for the mailer setup,
465 ** which use "mqueue" as default queue.
466 */
467
468 static void
setupqueues()469 setupqueues()
470 {
471 char buf[100];
472
473 MaxRunnersPerQueue = 1;
474 (void) sm_strlcpy(buf, "mqueue, P=/var/spool/mqueue", sizeof(buf));
475 makequeue(buf, false);
476 }
477 /*
478 ** SETUPMAILERS -- initialize default mailers
479 */
480
481 static void
setupmailers()482 setupmailers()
483 {
484 char buf[100];
485
486 (void) sm_strlcpy(buf, "prog, P=/bin/sh, F=lsouDq9, T=X-Unix/X-Unix/X-Unix, A=sh -c \201u",
487 sizeof(buf));
488 makemailer(buf);
489
490 (void) sm_strlcpy(buf, "*file*, P=[FILE], F=lsDFMPEouq9, T=X-Unix/X-Unix/X-Unix, A=FILE \201u",
491 sizeof(buf));
492 makemailer(buf);
493
494 (void) sm_strlcpy(buf, "*include*, P=/dev/null, F=su, A=INCLUDE \201u",
495 sizeof(buf));
496 makemailer(buf);
497 initerrmailers();
498 }
499 /*
500 ** SETUPMAPS -- set up map classes
501 */
502
503 #define MAPDEF(name, ext, flags, parse, open, close, lookup, store) \
504 { \
505 extern bool parse __P((MAP *, char *)); \
506 extern bool open __P((MAP *, int)); \
507 extern void close __P((MAP *)); \
508 extern char *lookup __P((MAP *, char *, char **, int *)); \
509 extern void store __P((MAP *, char *, char *)); \
510 s = stab(name, ST_MAPCLASS, ST_ENTER); \
511 s->s_mapclass.map_cname = name; \
512 s->s_mapclass.map_ext = ext; \
513 s->s_mapclass.map_cflags = flags; \
514 s->s_mapclass.map_parse = parse; \
515 s->s_mapclass.map_open = open; \
516 s->s_mapclass.map_close = close; \
517 s->s_mapclass.map_lookup = lookup; \
518 s->s_mapclass.map_store = store; \
519 }
520
521 static void
setupmaps()522 setupmaps()
523 {
524 register STAB *s;
525
526 #if NEWDB
527 # if DB_VERSION_MAJOR > 1
528 int major_v, minor_v, patch_v;
529
530 (void) db_version(&major_v, &minor_v, &patch_v);
531 if (major_v != DB_VERSION_MAJOR || minor_v != DB_VERSION_MINOR)
532 {
533 errno = 0;
534 syserr("Berkeley DB version mismatch: compiled against %d.%d.%d, run-time linked against %d.%d.%d",
535 DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH,
536 major_v, minor_v, patch_v);
537 }
538 # endif /* DB_VERSION_MAJOR > 1 */
539
540 MAPDEF("hash", ".db", MCF_ALIASOK|MCF_REBUILDABLE,
541 map_parseargs, hash_map_open, db_map_close,
542 db_map_lookup, db_map_store);
543
544 MAPDEF("btree", ".db", MCF_ALIASOK|MCF_REBUILDABLE,
545 map_parseargs, bt_map_open, db_map_close,
546 db_map_lookup, db_map_store);
547 #endif /* NEWDB */
548
549 #if NDBM
550 MAPDEF("dbm", ".dir", MCF_ALIASOK|MCF_REBUILDABLE,
551 map_parseargs, ndbm_map_open, ndbm_map_close,
552 ndbm_map_lookup, ndbm_map_store);
553 #endif
554
555 #if CDB
556 MAPDEF("cdb", CDBEXT, MCF_ALIASOK|MCF_REBUILDABLE,
557 map_parseargs, cdb_map_open, cdb_map_close,
558 cdb_map_lookup, cdb_map_store);
559 #endif
560
561 #if NIS
562 MAPDEF("nis", NULL, MCF_ALIASOK,
563 map_parseargs, nis_map_open, null_map_close,
564 nis_map_lookup, null_map_store);
565 #endif
566
567 #if NISPLUS
568 MAPDEF("nisplus", NULL, MCF_ALIASOK,
569 map_parseargs, nisplus_map_open, null_map_close,
570 nisplus_map_lookup, null_map_store);
571 #endif
572
573 #if LDAPMAP
574 MAPDEF("ldap", NULL, MCF_ALIASOK|MCF_NOTPERSIST,
575 ldapmap_parseargs, ldapmap_open, ldapmap_close,
576 ldapmap_lookup, null_map_store);
577 #endif
578
579 #if PH_MAP
580 MAPDEF("ph", NULL, MCF_NOTPERSIST,
581 ph_map_parseargs, ph_map_open, ph_map_close,
582 ph_map_lookup, null_map_store);
583 #endif
584
585 #if MAP_NSD
586 /* IRIX 6.5 nsd support */
587 MAPDEF("nsd", NULL, MCF_ALIASOK,
588 map_parseargs, null_map_open, null_map_close,
589 nsd_map_lookup, null_map_store);
590 #endif
591
592 #if HESIOD
593 MAPDEF("hesiod", NULL, MCF_ALIASOK,
594 map_parseargs, hes_map_open, hes_map_close,
595 hes_map_lookup, null_map_store);
596 #endif
597
598 #if NETINFO
599 MAPDEF("netinfo", NULL, MCF_ALIASOK,
600 map_parseargs, ni_map_open, null_map_close,
601 ni_map_lookup, null_map_store);
602 #endif
603
604 #if 0
605 MAPDEF("dns", NULL, 0,
606 dns_map_init, null_map_open, null_map_close,
607 dns_map_lookup, null_map_store);
608 #endif /* 0 */
609
610 #if NAMED_BIND
611 # if DNSMAP
612 # if _FFR_DNSMAP_ALIASABLE
613 MAPDEF("dns", NULL, MCF_ALIASOK,
614 dns_map_parseargs, dns_map_open, null_map_close,
615 dns_map_lookup, null_map_store);
616 # else /* _FFR_DNSMAP_ALIASABLE */
617 MAPDEF("dns", NULL, 0,
618 dns_map_parseargs, dns_map_open, null_map_close,
619 dns_map_lookup, null_map_store);
620 # endif /* _FFR_DNSMAP_ALIASABLE */
621 # endif /* DNSMAP */
622 #endif /* NAMED_BIND */
623
624 #if NAMED_BIND
625 /* best MX DNS lookup */
626 MAPDEF("bestmx", NULL, MCF_OPTFILE,
627 map_parseargs, null_map_open, null_map_close,
628 bestmx_map_lookup, null_map_store);
629 #endif
630
631 MAPDEF("host", NULL, 0,
632 host_map_init, null_map_open, null_map_close,
633 host_map_lookup, null_map_store);
634
635 MAPDEF("text", NULL, MCF_ALIASOK,
636 map_parseargs, text_map_open, null_map_close,
637 text_map_lookup, null_map_store);
638
639 MAPDEF("stab", NULL, MCF_ALIASOK,
640 map_parseargs, stab_map_open, null_map_close,
641 stab_map_lookup, stab_map_store);
642
643 MAPDEF("implicit", NULL, MCF_ALIASOK|MCF_REBUILDABLE,
644 map_parseargs, impl_map_open, impl_map_close,
645 impl_map_lookup, impl_map_store);
646
647 /* access to system passwd file */
648 MAPDEF("user", NULL, MCF_OPTFILE,
649 map_parseargs, user_map_open, null_map_close,
650 user_map_lookup, null_map_store);
651
652 /* dequote map */
653 MAPDEF("dequote", NULL, 0,
654 dequote_init, null_map_open, null_map_close,
655 dequote_map, null_map_store);
656
657 #if MAP_REGEX
658 MAPDEF("regex", NULL, 0,
659 regex_map_init, null_map_open, null_map_close,
660 regex_map_lookup, null_map_store);
661 #endif
662
663 #if USERDB
664 /* user database */
665 MAPDEF("userdb", ".db", 0,
666 map_parseargs, null_map_open, null_map_close,
667 udb_map_lookup, null_map_store);
668 #endif
669
670 /* arbitrary programs */
671 MAPDEF("program", NULL, MCF_ALIASOK,
672 map_parseargs, null_map_open, null_map_close,
673 prog_map_lookup, null_map_store);
674
675 /* sequenced maps */
676 MAPDEF("sequence", NULL, MCF_ALIASOK,
677 seq_map_parse, null_map_open, null_map_close,
678 seq_map_lookup, seq_map_store);
679
680 /* switched interface to sequenced maps */
681 MAPDEF("switch", NULL, MCF_ALIASOK,
682 map_parseargs, switch_map_open, null_map_close,
683 seq_map_lookup, seq_map_store);
684
685 /* null map lookup -- really for internal use only */
686 MAPDEF("null", NULL, MCF_ALIASOK|MCF_OPTFILE,
687 map_parseargs, null_map_open, null_map_close,
688 null_map_lookup, null_map_store);
689
690 /* syslog map -- logs information to syslog */
691 MAPDEF("syslog", NULL, 0,
692 syslog_map_parseargs, null_map_open, null_map_close,
693 syslog_map_lookup, null_map_store);
694
695 /* macro storage map -- rulesets can set macros */
696 MAPDEF("macro", NULL, 0,
697 dequote_init, null_map_open, null_map_close,
698 macro_map_lookup, null_map_store);
699
700 /* arithmetic map -- add/subtract/compare */
701 MAPDEF("arith", NULL, 0,
702 dequote_init, null_map_open, null_map_close,
703 arith_map_lookup, null_map_store);
704
705 /* "arpa" map -- IP -> arpa */
706 MAPDEF("arpa", NULL, 0,
707 dequote_init, null_map_open, null_map_close,
708 arpa_map_lookup, null_map_store);
709
710 #if SOCKETMAP
711 /* arbitrary daemons */
712 MAPDEF("socket", NULL, MCF_ALIASOK,
713 map_parseargs, socket_map_open, socket_map_close,
714 socket_map_lookup, null_map_store);
715 #endif
716
717 #if _FFR_DPRINTF_MAP
718 /* dprintf map -- logs information to syslog */
719 MAPDEF("dprintf", NULL, 0,
720 dprintf_map_parseargs, null_map_open, null_map_close,
721 dprintf_map_lookup, null_map_store);
722 #endif
723
724 #if _FFR_SETDEBUG_MAP
725 /* setdebug map -- set debug levels */
726 MAPDEF("setdebug", NULL, 0,
727 dequote_init, null_map_open, null_map_close,
728 setdebug_map_lookup, null_map_store);
729 #endif
730
731 #if _FFR_SETOPT_MAP
732 /* setopt map -- set option */
733 MAPDEF("setopt", NULL, 0,
734 dequote_init, null_map_open, null_map_close,
735 setopt_map_lookup, null_map_store);
736 #endif
737
738 if (tTd(38, 2))
739 {
740 /* bogus map -- always return tempfail */
741 MAPDEF("bogus", NULL, MCF_ALIASOK|MCF_OPTFILE,
742 map_parseargs, null_map_open, null_map_close,
743 bogus_map_lookup, null_map_store);
744 }
745 }
746
747 #undef MAPDEF
748 /*
749 ** INITHOSTMAPS -- initial host-dependent maps
750 **
751 ** This should act as an interface to any local service switch
752 ** provided by the host operating system.
753 **
754 ** Parameters:
755 ** none
756 **
757 ** Returns:
758 ** none
759 **
760 ** Side Effects:
761 ** Should define maps "host" and "users" as necessary
762 ** for this OS. If they are not defined, they will get
763 ** a default value later. It should check to make sure
764 ** they are not defined first, since it's possible that
765 ** the config file has provided an override.
766 */
767
768 void
inithostmaps()769 inithostmaps()
770 {
771 register int i;
772 int nmaps;
773 char *maptype[MAXMAPSTACK];
774 short mapreturn[MAXMAPACTIONS];
775 char buf[MAXLINE];
776
777 /*
778 ** Make sure we have a host map.
779 */
780
781 if (stab("host", ST_MAP, ST_FIND) == NULL)
782 {
783 /* user didn't initialize: set up host map */
784 (void) sm_strlcpy(buf, "host host", sizeof(buf));
785 #if NAMED_BIND
786 if (ConfigLevel >= 2)
787 (void) sm_strlcat(buf, " -a. -D", sizeof(buf));
788 #endif
789 (void) makemapentry(buf);
790 }
791
792 /*
793 ** Set up default aliases maps
794 */
795
796 nmaps = switch_map_find("aliases", maptype, mapreturn);
797 for (i = 0; i < nmaps; i++)
798 {
799 if (strcmp(maptype[i], "files") == 0 &&
800 stab("aliases.files", ST_MAP, ST_FIND) == NULL)
801 {
802 (void) sm_strlcpy(buf, "aliases.files null",
803 sizeof(buf));
804 (void) makemapentry(buf);
805 }
806 #if CDB
807 else if (strcmp(maptype[i], "cdb") == 0 &&
808 stab("aliases.cdb", ST_MAP, ST_FIND) == NULL)
809 {
810 (void) sm_strlcpy(buf, "aliases.cdb null", sizeof(buf));
811 (void) makemapentry(buf);
812 }
813 #endif /* CDB */
814 #if NISPLUS
815 else if (strcmp(maptype[i], "nisplus") == 0 &&
816 stab("aliases.nisplus", ST_MAP, ST_FIND) == NULL)
817 {
818 (void) sm_strlcpy(buf, "aliases.nisplus nisplus -kalias -vexpansion mail_aliases.org_dir",
819 sizeof(buf));
820 (void) makemapentry(buf);
821 }
822 #endif /* NISPLUS */
823 #if NIS
824 else if (strcmp(maptype[i], "nis") == 0 &&
825 stab("aliases.nis", ST_MAP, ST_FIND) == NULL)
826 {
827 (void) sm_strlcpy(buf, "aliases.nis nis mail.aliases",
828 sizeof(buf));
829 (void) makemapentry(buf);
830 }
831 #endif /* NIS */
832 #if NETINFO
833 else if (strcmp(maptype[i], "netinfo") == 0 &&
834 stab("aliases.netinfo", ST_MAP, ST_FIND) == NULL)
835 {
836 (void) sm_strlcpy(buf, "aliases.netinfo netinfo -z, /aliases",
837 sizeof(buf));
838 (void) makemapentry(buf);
839 }
840 #endif /* NETINFO */
841 #if HESIOD
842 else if (strcmp(maptype[i], "hesiod") == 0 &&
843 stab("aliases.hesiod", ST_MAP, ST_FIND) == NULL)
844 {
845 (void) sm_strlcpy(buf, "aliases.hesiod hesiod aliases",
846 sizeof(buf));
847 (void) makemapentry(buf);
848 }
849 #endif /* HESIOD */
850 #if LDAPMAP && defined(SUN_EXTENSIONS) && \
851 defined(SUN_SIMPLIFIED_LDAP) && HASLDAPGETALIASBYNAME
852 else if (strcmp(maptype[i], "ldap") == 0 &&
853 stab("aliases.ldap", ST_MAP, ST_FIND) == NULL)
854 {
855 (void) sm_strlcpy(buf, "aliases.ldap ldap -b . -h localhost -k mail=%0 -v mailgroup",
856 sizeof buf);
857 (void) makemapentry(buf);
858 }
859 #endif /* LDAPMAP && defined(SUN_EXTENSIONS) && ... */
860 }
861 if (stab("aliases", ST_MAP, ST_FIND) == NULL)
862 {
863 (void) sm_strlcpy(buf, "aliases switch aliases", sizeof(buf));
864 (void) makemapentry(buf);
865 }
866 }
867
868 /*
869 ** SWITCH_MAP_FIND -- find the list of types associated with a map
870 **
871 ** This is the system-dependent interface to the service switch.
872 **
873 ** Parameters:
874 ** service -- the name of the service of interest.
875 ** maptype -- an out-array of strings containing the types
876 ** of access to use for this service. There can
877 ** be at most MAXMAPSTACK types for a single service.
878 ** mapreturn -- an out-array of return information bitmaps
879 ** for the map.
880 **
881 ** Returns:
882 ** The number of map types filled in, or -1 for failure.
883 **
884 ** Side effects:
885 ** Preserves errno so nothing in the routine clobbers it.
886 */
887
888 #if defined(SOLARIS) || (defined(sony_news) && defined(__svr4))
889 # define _USE_SUN_NSSWITCH_
890 #endif
891
892 #if _FFR_HPUX_NSSWITCH
893 # ifdef __hpux
894 # define _USE_SUN_NSSWITCH_
895 # endif
896 #endif /* _FFR_HPUX_NSSWITCH */
897
898 #ifdef _USE_SUN_NSSWITCH_
899 # include <nsswitch.h>
900 #endif
901
902 #if defined(ultrix) || (defined(__osf__) && defined(__alpha))
903 # define _USE_DEC_SVC_CONF_
904 #endif
905
906 #ifdef _USE_DEC_SVC_CONF_
907 # include <sys/svcinfo.h>
908 #endif
909
910 int
switch_map_find(service,maptype,mapreturn)911 switch_map_find(service, maptype, mapreturn)
912 char *service;
913 char *maptype[MAXMAPSTACK];
914 short mapreturn[MAXMAPACTIONS];
915 {
916 int svcno = 0;
917 int save_errno = errno;
918
919 #ifdef _USE_SUN_NSSWITCH_
920 struct __nsw_switchconfig *nsw_conf;
921 enum __nsw_parse_err pserr;
922 struct __nsw_lookup *lk;
923 static struct __nsw_lookup lkp0 =
924 { "files", {1, 0, 0, 0}, NULL, NULL };
925 static struct __nsw_switchconfig lkp_default =
926 { 0, "sendmail", 3, &lkp0 };
927
928 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
929 mapreturn[svcno] = 0;
930
931 if ((nsw_conf = __nsw_getconfig(service, &pserr)) == NULL)
932 lk = lkp_default.lookups;
933 else
934 lk = nsw_conf->lookups;
935 svcno = 0;
936 while (lk != NULL && svcno < MAXMAPSTACK)
937 {
938 maptype[svcno] = lk->service_name;
939 if (lk->actions[__NSW_NOTFOUND] == __NSW_RETURN)
940 mapreturn[MA_NOTFOUND] |= 1 << svcno;
941 if (lk->actions[__NSW_TRYAGAIN] == __NSW_RETURN)
942 mapreturn[MA_TRYAGAIN] |= 1 << svcno;
943 if (lk->actions[__NSW_UNAVAIL] == __NSW_RETURN)
944 mapreturn[MA_TRYAGAIN] |= 1 << svcno;
945 svcno++;
946 lk = lk->next;
947 }
948 errno = save_errno;
949 return svcno;
950 #endif /* _USE_SUN_NSSWITCH_ */
951
952 #ifdef _USE_DEC_SVC_CONF_
953 struct svcinfo *svcinfo;
954 int svc;
955
956 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
957 mapreturn[svcno] = 0;
958
959 svcinfo = getsvc();
960 if (svcinfo == NULL)
961 goto punt;
962 if (strcmp(service, "hosts") == 0)
963 svc = SVC_HOSTS;
964 else if (strcmp(service, "aliases") == 0)
965 svc = SVC_ALIASES;
966 else if (strcmp(service, "passwd") == 0)
967 svc = SVC_PASSWD;
968 else
969 {
970 errno = save_errno;
971 return -1;
972 }
973 for (svcno = 0; svcno < SVC_PATHSIZE && svcno < MAXMAPSTACK; svcno++)
974 {
975 switch (svcinfo->svcpath[svc][svcno])
976 {
977 case SVC_LOCAL:
978 maptype[svcno] = "files";
979 break;
980
981 case SVC_YP:
982 maptype[svcno] = "nis";
983 break;
984
985 case SVC_BIND:
986 maptype[svcno] = "dns";
987 break;
988
989 # ifdef SVC_HESIOD
990 case SVC_HESIOD:
991 maptype[svcno] = "hesiod";
992 break;
993 # endif
994
995 case SVC_LAST:
996 errno = save_errno;
997 return svcno;
998 }
999 }
1000 errno = save_errno;
1001 return svcno;
1002 #endif /* _USE_DEC_SVC_CONF_ */
1003
1004 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_)
1005 /*
1006 ** Fall-back mechanism.
1007 */
1008
1009 STAB *st;
1010 static time_t servicecachetime; /* time service switch was cached */
1011 time_t now = curtime();
1012
1013 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
1014 mapreturn[svcno] = 0;
1015
1016 if ((now - servicecachetime) > (time_t) ServiceCacheMaxAge)
1017 {
1018 /* (re)read service switch */
1019 register SM_FILE_T *fp;
1020 long sff = SFF_REGONLY|SFF_OPENASROOT|SFF_NOLOCK;
1021
1022 if (!bitnset(DBS_LINKEDSERVICESWITCHFILEINWRITABLEDIR,
1023 DontBlameSendmail))
1024 sff |= SFF_NOWLINK;
1025
1026 if (ConfigFileRead)
1027 servicecachetime = now;
1028 fp = safefopen(ServiceSwitchFile, O_RDONLY, 0, sff);
1029 if (fp != NULL)
1030 {
1031 char buf[MAXLINE];
1032
1033 while (sm_io_fgets(fp, SM_TIME_DEFAULT, buf,
1034 sizeof(buf)) >= 0)
1035 {
1036 register char *p;
1037
1038 p = strpbrk(buf, "#\n");
1039 if (p != NULL)
1040 *p = '\0';
1041 #ifndef SM_NSSWITCH_DELIMS
1042 # define SM_NSSWITCH_DELIMS " \t"
1043 #endif
1044 p = strpbrk(buf, SM_NSSWITCH_DELIMS);
1045 if (p != NULL)
1046 *p++ = '\0';
1047 if (buf[0] == '\0')
1048 continue;
1049 if (p == NULL)
1050 {
1051 sm_syslog(LOG_ERR, NOQID,
1052 "Bad line on %.100s: %.100s",
1053 ServiceSwitchFile,
1054 buf);
1055 continue;
1056 }
1057 while (SM_ISSPACE(*p))
1058 p++;
1059 if (*p == '\0')
1060 continue;
1061
1062 /*
1063 ** Find/allocate space for this service entry.
1064 ** Space for all of the service strings
1065 ** are allocated at once. This means
1066 ** that we only have to free the first
1067 ** one to free all of them.
1068 */
1069
1070 st = stab(buf, ST_SERVICE, ST_ENTER);
1071 if (st->s_service[0] != NULL)
1072 sm_free((void *) st->s_service[0]); /* XXX */
1073 p = newstr(p);
1074 for (svcno = 0; svcno < MAXMAPSTACK; )
1075 {
1076 if (*p == '\0')
1077 break;
1078 st->s_service[svcno++] = p;
1079 p = strpbrk(p, " \t");
1080 if (p == NULL)
1081 break;
1082 *p++ = '\0';
1083 while (SM_ISSPACE(*p))
1084 p++;
1085 }
1086 if (svcno < MAXMAPSTACK)
1087 st->s_service[svcno] = NULL;
1088 }
1089 (void) sm_io_close(fp, SM_TIME_DEFAULT);
1090 }
1091 }
1092
1093 /* look up entry in cache */
1094 st = stab(service, ST_SERVICE, ST_FIND);
1095 if (st != NULL && st->s_service[0] != NULL)
1096 {
1097 /* extract data */
1098 svcno = 0;
1099 while (svcno < MAXMAPSTACK)
1100 {
1101 maptype[svcno] = st->s_service[svcno];
1102 if (maptype[svcno++] == NULL)
1103 break;
1104 }
1105 errno = save_errno;
1106 return --svcno;
1107 }
1108 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */
1109
1110 #if !defined(_USE_SUN_NSSWITCH_)
1111 /* if the service file doesn't work, use an absolute fallback */
1112 # ifdef _USE_DEC_SVC_CONF_
1113 punt:
1114 # endif
1115 for (svcno = 0; svcno < MAXMAPACTIONS; svcno++)
1116 mapreturn[svcno] = 0;
1117 svcno = 0;
1118 if (strcmp(service, "aliases") == 0)
1119 {
1120 SM_ASSERT(svcno < MAXMAPSTACK);
1121 maptype[svcno++] = "files";
1122 # if CDB
1123 SM_ASSERT(svcno < MAXMAPSTACK);
1124 maptype[svcno++] = "cdb";
1125 # endif
1126 # if defined(AUTO_NETINFO_ALIASES) && defined (NETINFO)
1127 SM_ASSERT(svcno < MAXMAPSTACK);
1128 maptype[svcno++] = "netinfo";
1129 # endif
1130 # ifdef AUTO_NIS_ALIASES
1131 # if NISPLUS
1132 SM_ASSERT(svcno < MAXMAPSTACK);
1133 maptype[svcno++] = "nisplus";
1134 # endif
1135 # if NIS
1136 SM_ASSERT(svcno < MAXMAPSTACK);
1137 maptype[svcno++] = "nis";
1138 # endif
1139 # endif /* AUTO_NIS_ALIASES */
1140 errno = save_errno;
1141 return svcno;
1142 }
1143 if (strcmp(service, "hosts") == 0)
1144 {
1145 # if NAMED_BIND
1146 SM_ASSERT(svcno < MAXMAPSTACK);
1147 maptype[svcno++] = "dns";
1148 # else /* NAMED_BIND */
1149 # if defined(sun) && !defined(BSD)
1150 /* SunOS */
1151 SM_ASSERT(svcno < MAXMAPSTACK);
1152 maptype[svcno++] = "nis";
1153 # endif /* defined(sun) && !defined(BSD) */
1154 # endif /* NAMED_BIND */
1155 # if defined(AUTO_NETINFO_HOSTS) && defined (NETINFO)
1156 SM_ASSERT(svcno < MAXMAPSTACK);
1157 maptype[svcno++] = "netinfo";
1158 # endif
1159 SM_ASSERT(svcno < MAXMAPSTACK);
1160 maptype[svcno++] = "files";
1161 errno = save_errno;
1162 return svcno;
1163 }
1164 errno = save_errno;
1165 return -1;
1166 #endif /* !defined(_USE_SUN_NSSWITCH_) */
1167 }
1168 /*
1169 ** USERNAME -- return the user id of the logged in user.
1170 **
1171 ** Parameters:
1172 ** none.
1173 **
1174 ** Returns:
1175 ** The login name of the logged in user.
1176 **
1177 ** Side Effects:
1178 ** none.
1179 **
1180 ** Notes:
1181 ** The return value is statically allocated.
1182 */
1183
1184 char *
username()1185 username()
1186 {
1187 static char *myname = NULL;
1188 extern char *getlogin();
1189 register struct passwd *pw;
1190
1191 /* cache the result */
1192 if (myname == NULL)
1193 {
1194 myname = getlogin();
1195 if (myname == NULL || myname[0] == '\0')
1196 {
1197 pw = sm_getpwuid(RealUid);
1198 if (pw != NULL)
1199 myname = pw->pw_name;
1200 }
1201 else
1202 {
1203 uid_t uid = RealUid;
1204
1205 if ((pw = sm_getpwnam(myname)) == NULL ||
1206 (uid != 0 && uid != pw->pw_uid))
1207 {
1208 pw = sm_getpwuid(uid);
1209 if (pw != NULL)
1210 myname = pw->pw_name;
1211 }
1212 }
1213 if (myname == NULL || myname[0] == '\0')
1214 {
1215 syserr("554 5.3.0 Who are you?");
1216 myname = "postmaster";
1217 }
1218 else if (strpbrk(myname, ",;:/|\"\\") != NULL)
1219 myname = addquotes(myname, NULL);
1220 else
1221 myname = sm_pstrdup_x(myname);
1222 }
1223 return myname;
1224 }
1225 /*
1226 ** TTYPATH -- Get the path of the user's tty
1227 **
1228 ** Returns the pathname of the user's tty. Returns NULL if
1229 ** the user is not logged in or if s/he has write permission
1230 ** denied.
1231 **
1232 ** Parameters:
1233 ** none
1234 **
1235 ** Returns:
1236 ** pathname of the user's tty.
1237 ** NULL if not logged in or write permission denied.
1238 **
1239 ** Side Effects:
1240 ** none.
1241 **
1242 ** WARNING:
1243 ** Return value is in a local buffer.
1244 **
1245 ** Called By:
1246 ** savemail
1247 */
1248
1249 char *
ttypath()1250 ttypath()
1251 {
1252 struct stat stbuf;
1253 register char *pathn;
1254 extern char *ttyname();
1255 extern char *getlogin();
1256
1257 /* compute the pathname of the controlling tty */
1258 if ((pathn = ttyname(2)) == NULL && (pathn = ttyname(1)) == NULL &&
1259 (pathn = ttyname(0)) == NULL)
1260 {
1261 errno = 0;
1262 return NULL;
1263 }
1264
1265 /* see if we have write permission */
1266 if (stat(pathn, &stbuf) < 0 || !bitset(S_IWOTH, stbuf.st_mode))
1267 {
1268 errno = 0;
1269 return NULL;
1270 }
1271
1272 /* see if the user is logged in */
1273 if (getlogin() == NULL)
1274 return NULL;
1275
1276 /* looks good */
1277 return pathn;
1278 }
1279 /*
1280 ** CHECKCOMPAT -- check for From and To person compatible.
1281 **
1282 ** This routine can be supplied on a per-installation basis
1283 ** to determine whether a person is allowed to send a message.
1284 ** This allows restriction of certain types of internet
1285 ** forwarding or registration of users.
1286 **
1287 ** If the hosts are found to be incompatible, an error
1288 ** message should be given using "usrerr" and an EX_ code
1289 ** should be returned. You can also set to->q_status to
1290 ** a DSN-style status code.
1291 **
1292 ** EF_NO_BODY_RETN can be set in e->e_flags to suppress the
1293 ** body during the return-to-sender function; this should be done
1294 ** on huge messages. This bit may already be set by the ESMTP
1295 ** protocol.
1296 **
1297 ** Parameters:
1298 ** to -- the person being sent to.
1299 **
1300 ** Returns:
1301 ** an exit status
1302 **
1303 ** Side Effects:
1304 ** none (unless you include the usrerr stuff)
1305 */
1306
1307 int
checkcompat(to,e)1308 checkcompat(to, e)
1309 register ADDRESS *to;
1310 register ENVELOPE *e;
1311 {
1312 if (tTd(49, 1))
1313 sm_dprintf("checkcompat(to=%s, from=%s)\n",
1314 to->q_paddr, e->e_from.q_paddr);
1315
1316 #ifdef EXAMPLE_CODE
1317 /* this code is intended as an example only */
1318 register STAB *s;
1319
1320 s = stab("arpa", ST_MAILER, ST_FIND);
1321 if (s != NULL && strcmp(e->e_from.q_mailer->m_name, "local") != 0 &&
1322 to->q_mailer == s->s_mailer)
1323 {
1324 usrerr("553 No ARPA mail through this machine: see your system administration");
1325 /* e->e_flags |= EF_NO_BODY_RETN; to suppress body on return */
1326 to->q_status = "5.7.1";
1327 return EX_UNAVAILABLE;
1328 }
1329 #endif /* EXAMPLE_CODE */
1330 return EX_OK;
1331 }
1332
1333 #ifdef SUN_EXTENSIONS
1334 static void
init_md_sun()1335 init_md_sun()
1336 {
1337 struct stat sbuf;
1338
1339 /* Check for large file descriptor */
1340 if (fstat(fileno(stdin), &sbuf) < 0)
1341 {
1342 if (errno == EOVERFLOW)
1343 {
1344 perror("stdin");
1345 exit(EX_NOINPUT);
1346 }
1347 }
1348 }
1349 #endif /* SUN_EXTENSIONS */
1350
1351 /*
1352 ** INIT_MD -- do machine dependent initializations
1353 **
1354 ** Systems that have global modes that should be set should do
1355 ** them here rather than in main.
1356 */
1357
1358 #ifdef _AUX_SOURCE
1359 # include <compat.h>
1360 #endif
1361
1362 #if SHARE_V1
1363 # include <shares.h>
1364 #endif
1365
1366 void
init_md(argc,argv)1367 init_md(argc, argv)
1368 int argc;
1369 char **argv;
1370 {
1371 #ifdef _AUX_SOURCE
1372 setcompat(getcompat() | COMPAT_BSDPROT);
1373 #endif
1374
1375 #ifdef SUN_EXTENSIONS
1376 init_md_sun();
1377 #endif
1378
1379 #if _CONVEX_SOURCE
1380 /* keep gethostby*() from stripping the local domain name */
1381 set_domain_trim_off();
1382 #endif
1383 #if defined(__QNX__) && !defined(__QNXNTO__)
1384 /*
1385 ** Due to QNX's network distributed nature, you can target a tcpip
1386 ** stack on a different node in the qnx network; this patch lets
1387 ** this feature work. The __sock_locate() must be done before the
1388 ** environment is clear.
1389 */
1390 __sock_locate();
1391 #endif /* __QNX__ */
1392 #if SECUREWARE || defined(_SCO_unix_)
1393 set_auth_parameters(argc, argv);
1394
1395 # ifdef _SCO_unix_
1396 /*
1397 ** This is required for highest security levels (the kernel
1398 ** won't let it call set*uid() or run setuid binaries without
1399 ** it). It may be necessary on other SECUREWARE systems.
1400 */
1401
1402 if (getluid() == -1)
1403 setluid(0);
1404 # endif /* _SCO_unix_ */
1405 #endif /* SECUREWARE || defined(_SCO_unix_) */
1406
1407
1408 #ifdef VENDOR_DEFAULT
1409 VendorCode = VENDOR_DEFAULT;
1410 #else
1411 VendorCode = VENDOR_BERKELEY;
1412 #endif
1413 }
1414 /*
1415 ** INIT_VENDOR_MACROS -- vendor-dependent macro initializations
1416 **
1417 ** Called once, on startup.
1418 **
1419 ** Parameters:
1420 ** e -- the global envelope.
1421 **
1422 ** Returns:
1423 ** none.
1424 **
1425 ** Side Effects:
1426 ** vendor-dependent.
1427 */
1428
1429 void
init_vendor_macros(e)1430 init_vendor_macros(e)
1431 register ENVELOPE *e;
1432 {
1433 }
1434 /*
1435 ** GETLA -- get the current load average
1436 **
1437 ** This code stolen from la.c.
1438 **
1439 ** Parameters:
1440 ** none.
1441 **
1442 ** Returns:
1443 ** The current load average as an integer.
1444 **
1445 ** Side Effects:
1446 ** none.
1447 */
1448
1449 /* try to guess what style of load average we have */
1450 #define LA_ZERO 1 /* always return load average as zero */
1451 #define LA_INT 2 /* read kmem for avenrun; interpret as long */
1452 #define LA_FLOAT 3 /* read kmem for avenrun; interpret as float */
1453 #define LA_SUBR 4 /* call getloadavg */
1454 #define LA_MACH 5 /* MACH load averages (as on NeXT boxes) */
1455 #define LA_SHORT 6 /* read kmem for avenrun; interpret as short */
1456 #define LA_PROCSTR 7 /* read string ("1.17") from /proc/loadavg */
1457 #define LA_READKSYM 8 /* SVR4: use MIOC_READKSYM ioctl call */
1458 #define LA_DGUX 9 /* special DGUX implementation */
1459 #define LA_HPUX 10 /* special HPUX implementation */
1460 #define LA_IRIX6 11 /* special IRIX 6.2 implementation */
1461 #define LA_KSTAT 12 /* special Solaris kstat(3k) implementation */
1462 #define LA_DEVSHORT 13 /* read short from a device */
1463 #define LA_ALPHAOSF 14 /* Digital UNIX (OSF/1 on Alpha) table() call */
1464 #define LA_PSET 15 /* Solaris per-processor-set load average */
1465 #define LA_LONGLONG 17 /* read kmem for avenrun; interpret as long long */
1466
1467 /* do guesses based on general OS type */
1468 #ifndef LA_TYPE
1469 # define LA_TYPE LA_ZERO
1470 #endif
1471
1472 #ifndef FSHIFT
1473 # if defined(unixpc)
1474 # define FSHIFT 5
1475 # endif
1476
1477 # if defined(__alpha) || defined(IRIX)
1478 # define FSHIFT 10
1479 # endif
1480
1481 #endif /* ! FSHIFT */
1482
1483 #ifndef FSHIFT
1484 # define FSHIFT 8
1485 #endif
1486
1487 #ifndef FSCALE
1488 # define FSCALE (1 << FSHIFT)
1489 #endif
1490
1491 #ifndef LA_AVENRUN
1492 # ifdef SYSTEM5
1493 # define LA_AVENRUN "avenrun"
1494 # else
1495 # define LA_AVENRUN "_avenrun"
1496 # endif
1497 #endif /* ! LA_AVENRUN */
1498
1499 /* _PATH_KMEM should be defined in <paths.h> */
1500 #ifndef _PATH_KMEM
1501 # define _PATH_KMEM "/dev/kmem"
1502 #endif
1503
1504 #if (LA_TYPE == LA_INT) || (LA_TYPE == LA_FLOAT) || (LA_TYPE == LA_SHORT) || (LA_TYPE == LA_LONGLONG)
1505
1506 # include <nlist.h>
1507
1508 /* _PATH_UNIX should be defined in <paths.h> */
1509 # ifndef _PATH_UNIX
1510 # if defined(SYSTEM5)
1511 # define _PATH_UNIX "/unix"
1512 # else
1513 # define _PATH_UNIX "/vmunix"
1514 # endif
1515 # endif /* ! _PATH_UNIX */
1516
1517 # ifdef _AUX_SOURCE
1518 struct nlist Nl[2];
1519 # else /* _AUX_SOURCE */
1520 struct nlist Nl[] =
1521 {
1522 { LA_AVENRUN },
1523 { 0 },
1524 };
1525 # endif /* _AUX_SOURCE */
1526 # define X_AVENRUN 0
1527
1528 int
getla()1529 getla()
1530 {
1531 int j;
1532 static int kmem = -1;
1533 # if LA_TYPE == LA_INT
1534 long avenrun[3];
1535 # else /* LA_TYPE == LA_INT */
1536 # if LA_TYPE == LA_SHORT
1537 short avenrun[3];
1538 # else
1539 # if LA_TYPE == LA_LONGLONG
1540 long long avenrun[3];
1541 # else
1542 double avenrun[3];
1543 # endif
1544 # endif /* LA_TYPE == LA_SHORT */
1545 # endif /* LA_TYPE == LA_INT */
1546 extern off_t lseek();
1547
1548 if (kmem < 0)
1549 {
1550 # ifdef _AUX_SOURCE
1551 (void) sm_strlcpy(Nl[X_AVENRUN].n_name, LA_AVENRUN,
1552 sizeof(Nl[X_AVENRUN].n_name));
1553 Nl[1].n_name[0] = '\0';
1554 # endif /* _AUX_SOURCE */
1555
1556 # if defined(_AIX3) || defined(_AIX4)
1557 if (knlist(Nl, 1, sizeof(Nl[0])) < 0)
1558 # else
1559 if (nlist(_PATH_UNIX, Nl) < 0)
1560 # endif
1561 {
1562 if (tTd(3, 1))
1563 sm_dprintf("getla: nlist(%s): %s\n", _PATH_UNIX,
1564 sm_errstring(errno));
1565 return -1;
1566 }
1567 if (Nl[X_AVENRUN].n_value == 0)
1568 {
1569 if (tTd(3, 1))
1570 sm_dprintf("getla: nlist(%s, %s) ==> 0\n",
1571 _PATH_UNIX, LA_AVENRUN);
1572 return -1;
1573 }
1574 # ifdef NAMELISTMASK
1575 Nl[X_AVENRUN].n_value &= NAMELISTMASK;
1576 # endif
1577
1578 kmem = open(_PATH_KMEM, 0, 0);
1579 if (kmem < 0)
1580 {
1581 if (tTd(3, 1))
1582 sm_dprintf("getla: open(/dev/kmem): %s\n",
1583 sm_errstring(errno));
1584 return -1;
1585 }
1586 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 ||
1587 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0)
1588 {
1589 if (tTd(3, 1))
1590 sm_dprintf("getla: fcntl(/dev/kmem, FD_CLOEXEC): %s\n",
1591 sm_errstring(errno));
1592 (void) close(kmem);
1593 kmem = -1;
1594 return -1;
1595 }
1596 }
1597 if (tTd(3, 20))
1598 sm_dprintf("getla: symbol address = %#lx\n",
1599 (unsigned long) Nl[X_AVENRUN].n_value);
1600 if (lseek(kmem, (off_t) Nl[X_AVENRUN].n_value, SEEK_SET) == -1 ||
1601 read(kmem, (char *) avenrun, sizeof(avenrun)) != sizeof(avenrun))
1602 {
1603 /* thank you Ian */
1604 if (tTd(3, 1))
1605 sm_dprintf("getla: lseek or read: %s\n",
1606 sm_errstring(errno));
1607 return -1;
1608 }
1609 # if (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT) || (LA_TYPE == LA_LONGLONG)
1610 if (tTd(3, 5))
1611 {
1612 # if LA_TYPE == LA_SHORT
1613 sm_dprintf("getla: avenrun = %d", avenrun[0]);
1614 if (tTd(3, 15))
1615 sm_dprintf(", %d, %d", avenrun[1], avenrun[2]);
1616 # else /* LA_TYPE == LA_SHORT */
1617 # if LA_TYPE == LA_LONGLONG
1618 sm_dprintf("getla: avenrun = %lld", avenrun[0]);
1619 if (tTd(3, 15))
1620 sm_dprintf(", %lld, %lld", avenrun[1], avenrun[2]);
1621 # else /* LA_TYPE == LA_LONGLONG */
1622 sm_dprintf("getla: avenrun = %ld", avenrun[0]);
1623 if (tTd(3, 15))
1624 sm_dprintf(", %ld, %ld", avenrun[1], avenrun[2]);
1625 # endif /* LA_TYPE == LA_LONGLONG */
1626 # endif /* LA_TYPE == LA_SHORT */
1627 sm_dprintf("\n");
1628 }
1629 if (tTd(3, 1))
1630 sm_dprintf("getla: %d\n",
1631 (int) (avenrun[0] + FSCALE/2) >> FSHIFT);
1632 return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT);
1633 # else /* (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT) || (LA_TYPE == LA_LONGLONG) */
1634 if (tTd(3, 5))
1635 {
1636 sm_dprintf("getla: avenrun = %g", avenrun[0]);
1637 if (tTd(3, 15))
1638 sm_dprintf(", %g, %g", avenrun[1], avenrun[2]);
1639 sm_dprintf("\n");
1640 }
1641 if (tTd(3, 1))
1642 sm_dprintf("getla: %d\n", (int) (avenrun[0] +0.5));
1643 return ((int) (avenrun[0] + 0.5));
1644 # endif /* (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT) || (LA_TYPE == LA_LONGLONG) */
1645 }
1646
1647 #endif /* (LA_TYPE == LA_INT) || (LA_TYPE == LA_FLOAT) || (LA_TYPE == LA_SHORT) || (LA_TYPE == LA_LONGLONG) */
1648
1649 #if LA_TYPE == LA_READKSYM
1650
1651 # include <sys/ksym.h>
1652
1653 int
getla()1654 getla()
1655 {
1656 int j;
1657 static int kmem = -1;
1658 long avenrun[3];
1659 struct mioc_rksym mirk;
1660
1661 if (kmem < 0)
1662 {
1663 kmem = open("/dev/kmem", 0, 0);
1664 if (kmem < 0)
1665 {
1666 if (tTd(3, 1))
1667 sm_dprintf("getla: open(/dev/kmem): %s\n",
1668 sm_errstring(errno));
1669 return -1;
1670 }
1671 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 ||
1672 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0)
1673 {
1674 if (tTd(3, 1))
1675 sm_dprintf("getla: fcntl(/dev/kmem, FD_CLOEXEC): %s\n",
1676 sm_errstring(errno));
1677 (void) close(kmem);
1678 kmem = -1;
1679 return -1;
1680 }
1681 }
1682 mirk.mirk_symname = LA_AVENRUN;
1683 mirk.mirk_buf = avenrun;
1684 mirk.mirk_buflen = sizeof(avenrun);
1685 if (ioctl(kmem, MIOC_READKSYM, &mirk) < 0)
1686 {
1687 if (tTd(3, 1))
1688 sm_dprintf("getla: ioctl(MIOC_READKSYM) failed: %s\n",
1689 sm_errstring(errno));
1690 return -1;
1691 }
1692 if (tTd(3, 5))
1693 {
1694 sm_dprintf("getla: avenrun = %d", avenrun[0]);
1695 if (tTd(3, 15))
1696 sm_dprintf(", %d, %d", avenrun[1], avenrun[2]);
1697 sm_dprintf("\n");
1698 }
1699 if (tTd(3, 1))
1700 sm_dprintf("getla: %d\n",
1701 (int) (avenrun[0] + FSCALE/2) >> FSHIFT);
1702 return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT);
1703 }
1704
1705 #endif /* LA_TYPE == LA_READKSYM */
1706
1707 #if LA_TYPE == LA_DGUX
1708
1709 # include <sys/dg_sys_info.h>
1710
1711 int
getla()1712 getla()
1713 {
1714 struct dg_sys_info_load_info load_info;
1715
1716 dg_sys_info((long *)&load_info,
1717 DG_SYS_INFO_LOAD_INFO_TYPE, DG_SYS_INFO_LOAD_VERSION_0);
1718
1719 if (tTd(3, 1))
1720 sm_dprintf("getla: %d\n", (int) (load_info.one_minute + 0.5));
1721
1722 return ((int) (load_info.one_minute + 0.5));
1723 }
1724
1725 #endif /* LA_TYPE == LA_DGUX */
1726
1727 #if LA_TYPE == LA_HPUX
1728
1729 /* forward declarations to keep gcc from complaining */
1730 struct pst_dynamic;
1731 struct pst_status;
1732 struct pst_static;
1733 struct pst_vminfo;
1734 struct pst_diskinfo;
1735 struct pst_processor;
1736 struct pst_lv;
1737 struct pst_swapinfo;
1738
1739 # include <sys/param.h>
1740 # include <sys/pstat.h>
1741
1742 int
getla()1743 getla()
1744 {
1745 struct pst_dynamic pstd;
1746
1747 if (pstat_getdynamic(&pstd, sizeof(struct pst_dynamic),
1748 (size_t) 1, 0) == -1)
1749 return 0;
1750
1751 if (tTd(3, 1))
1752 sm_dprintf("getla: %d\n", (int) (pstd.psd_avg_1_min + 0.5));
1753
1754 return (int) (pstd.psd_avg_1_min + 0.5);
1755 }
1756
1757 #endif /* LA_TYPE == LA_HPUX */
1758
1759 #if LA_TYPE == LA_SUBR
1760
1761 int
getla()1762 getla()
1763 {
1764 double avenrun[3];
1765
1766 if (getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0])) < 0)
1767 {
1768 if (tTd(3, 1))
1769 sm_dprintf("getla: getloadavg failed: %s",
1770 sm_errstring(errno));
1771 return -1;
1772 }
1773 if (tTd(3, 1))
1774 sm_dprintf("getla: %d\n", (int) (avenrun[0] +0.5));
1775 return ((int) (avenrun[0] + 0.5));
1776 }
1777
1778 #endif /* LA_TYPE == LA_SUBR */
1779
1780 #if LA_TYPE == LA_MACH
1781
1782 /*
1783 ** This has been tested on NEXTSTEP release 2.1/3.X.
1784 */
1785
1786 # if defined(NX_CURRENT_COMPILER_RELEASE) && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_0
1787 # include <mach/mach.h>
1788 # else
1789 # include <mach.h>
1790 # endif
1791
1792 int
getla()1793 getla()
1794 {
1795 processor_set_t default_set;
1796 kern_return_t error;
1797 unsigned int info_count;
1798 struct processor_set_basic_info info;
1799 host_t host;
1800
1801 error = processor_set_default(host_self(), &default_set);
1802 if (error != KERN_SUCCESS)
1803 {
1804 if (tTd(3, 1))
1805 sm_dprintf("getla: processor_set_default failed: %s",
1806 sm_errstring(errno));
1807 return -1;
1808 }
1809 info_count = PROCESSOR_SET_BASIC_INFO_COUNT;
1810 if (processor_set_info(default_set, PROCESSOR_SET_BASIC_INFO,
1811 &host, (processor_set_info_t)&info,
1812 &info_count) != KERN_SUCCESS)
1813 {
1814 if (tTd(3, 1))
1815 sm_dprintf("getla: processor_set_info failed: %s",
1816 sm_errstring(errno));
1817 return -1;
1818 }
1819 if (tTd(3, 1))
1820 sm_dprintf("getla: %d\n",
1821 (int) ((info.load_average + (LOAD_SCALE / 2)) /
1822 LOAD_SCALE));
1823 return (int) (info.load_average + (LOAD_SCALE / 2)) / LOAD_SCALE;
1824 }
1825
1826 #endif /* LA_TYPE == LA_MACH */
1827
1828 #if LA_TYPE == LA_PROCSTR
1829 # if SM_CONF_BROKEN_STRTOD
1830 ERROR: This OS has most likely a broken strtod() implemenentation.
1831 ERROR: The function is required for getla().
1832 ERROR: Check the compilation options _LA_PROCSTR and
_SM_CONF_BROKEN_STRTOD(without the leading _)1833 ERROR: _SM_CONF_BROKEN_STRTOD (without the leading _).
1834 # endif /* SM_CONF_BROKEN_STRTOD */
1835
1836 /*
1837 ** Read /proc/loadavg for the load average. This is assumed to be
1838 ** in a format like "0.15 0.12 0.06".
1839 **
1840 ** Initially intended for Linux. This has been in the kernel
1841 ** since at least 0.99.15.
1842 */
1843
1844 # ifndef _PATH_LOADAVG
1845 # define _PATH_LOADAVG "/proc/loadavg"
1846 # endif
1847
1848 int
1849 getla()
1850 {
1851 double avenrun;
1852 register int result;
1853 SM_FILE_T *fp;
1854
1855 fp = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, _PATH_LOADAVG, SM_IO_RDONLY,
1856 NULL);
1857 if (fp == NULL)
1858 {
1859 if (tTd(3, 1))
1860 sm_dprintf("getla: sm_io_open(%s): %s\n",
1861 _PATH_LOADAVG, sm_errstring(errno));
1862 return -1;
1863 }
1864 result = sm_io_fscanf(fp, SM_TIME_DEFAULT, "%lf", &avenrun);
1865 (void) sm_io_close(fp, SM_TIME_DEFAULT);
1866 if (result != 1)
1867 {
1868 if (tTd(3, 1))
1869 sm_dprintf("getla: sm_io_fscanf() = %d: %s\n",
1870 result, sm_errstring(errno));
1871 return -1;
1872 }
1873
1874 if (tTd(3, 1))
1875 sm_dprintf("getla(): %.2f\n", avenrun);
1876
1877 return ((int) (avenrun + 0.5));
1878 }
1879
1880 #endif /* LA_TYPE == LA_PROCSTR */
1881
1882 #if LA_TYPE == LA_IRIX6
1883
1884 # include <sys/sysmp.h>
1885
1886 # ifdef _UNICOSMP
1887 # define CAST_SYSMP(x) (x)
1888 # else
1889 # define CAST_SYSMP(x) ((x) & 0x7fffffff)
1890 # endif
1891
1892 int
getla(void)1893 getla(void)
1894 {
1895 int j;
1896 static int kmem = -1;
1897 int avenrun[3];
1898
1899 if (kmem < 0)
1900 {
1901 kmem = open(_PATH_KMEM, 0, 0);
1902 if (kmem < 0)
1903 {
1904 if (tTd(3, 1))
1905 sm_dprintf("getla: open(%s): %s\n", _PATH_KMEM,
1906 sm_errstring(errno));
1907 return -1;
1908 }
1909 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 ||
1910 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0)
1911 {
1912 if (tTd(3, 1))
1913 sm_dprintf("getla: fcntl(/dev/kmem, FD_CLOEXEC): %s\n",
1914 sm_errstring(errno));
1915 (void) close(kmem);
1916 kmem = -1;
1917 return -1;
1918 }
1919 }
1920
1921 if (lseek(kmem, CAST_SYSMP(sysmp(MP_KERNADDR, MPKA_AVENRUN)), SEEK_SET)
1922 == -1 ||
1923 read(kmem, (char *) avenrun, sizeof(avenrun)) != sizeof(avenrun))
1924 {
1925 if (tTd(3, 1))
1926 sm_dprintf("getla: lseek or read: %s\n",
1927 sm_errstring(errno));
1928 return -1;
1929 }
1930 if (tTd(3, 5))
1931 {
1932 sm_dprintf("getla: avenrun = %ld", (long int) avenrun[0]);
1933 if (tTd(3, 15))
1934 sm_dprintf(", %ld, %ld",
1935 (long int) avenrun[1], (long int) avenrun[2]);
1936 sm_dprintf("\n");
1937 }
1938
1939 if (tTd(3, 1))
1940 sm_dprintf("getla: %d\n",
1941 (int) (avenrun[0] + FSCALE/2) >> FSHIFT);
1942 return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT);
1943
1944 }
1945 #endif /* LA_TYPE == LA_IRIX6 */
1946
1947 #if LA_TYPE == LA_KSTAT
1948
1949 # include <kstat.h>
1950
1951 int
getla()1952 getla()
1953 {
1954 static kstat_ctl_t *kc = NULL;
1955 static kstat_t *ksp = NULL;
1956 kstat_named_t *ksn;
1957 int la;
1958
1959 if (kc == NULL) /* if not initialized before */
1960 kc = kstat_open();
1961 if (kc == NULL)
1962 {
1963 if (tTd(3, 1))
1964 sm_dprintf("getla: kstat_open(): %s\n",
1965 sm_errstring(errno));
1966 return -1;
1967 }
1968 if (ksp == NULL)
1969 ksp = kstat_lookup(kc, "unix", 0, "system_misc");
1970 if (ksp == NULL)
1971 {
1972 if (tTd(3, 1))
1973 sm_dprintf("getla: kstat_lookup(): %s\n",
1974 sm_errstring(errno));
1975 return -1;
1976 }
1977 if (kstat_read(kc, ksp, NULL) < 0)
1978 {
1979 if (tTd(3, 1))
1980 sm_dprintf("getla: kstat_read(): %s\n",
1981 sm_errstring(errno));
1982 return -1;
1983 }
1984 ksn = (kstat_named_t *) kstat_data_lookup(ksp, "avenrun_1min");
1985 la = ((double) ksn->value.ul + FSCALE/2) / FSCALE;
1986 /* kstat_close(kc); /o do not close for fast access */
1987 return la;
1988 }
1989
1990 #endif /* LA_TYPE == LA_KSTAT */
1991
1992 #if LA_TYPE == LA_DEVSHORT
1993
1994 /*
1995 ** Read /dev/table/avenrun for the load average. This should contain
1996 ** three shorts for the 1, 5, and 15 minute loads. We only read the
1997 ** first, since that's all we care about.
1998 **
1999 ** Intended for SCO OpenServer 5.
2000 */
2001
2002 # ifndef _PATH_AVENRUN
2003 # define _PATH_AVENRUN "/dev/table/avenrun"
2004 # endif
2005
2006 int
getla()2007 getla()
2008 {
2009 static int afd = -1;
2010 short avenrun;
2011 int loadav;
2012 int r;
2013
2014 errno = EBADF;
2015
2016 if (afd == -1 || lseek(afd, 0L, SEEK_SET) == -1)
2017 {
2018 if (errno != EBADF)
2019 return -1;
2020 afd = open(_PATH_AVENRUN, O_RDONLY|O_SYNC);
2021 if (afd < 0)
2022 {
2023 sm_syslog(LOG_ERR, NOQID,
2024 "can't open %s: %s",
2025 _PATH_AVENRUN, sm_errstring(errno));
2026 return -1;
2027 }
2028 }
2029
2030 r = read(afd, &avenrun, sizeof(avenrun));
2031 if (r != sizeof(avenrun))
2032 {
2033 sm_syslog(LOG_ERR, NOQID,
2034 "can't read %s: %s", _PATH_AVENRUN,
2035 r == -1 ? sm_errstring(errno) : "short read");
2036 return -1;
2037 }
2038
2039 if (tTd(3, 5))
2040 sm_dprintf("getla: avenrun = %d\n", avenrun);
2041 loadav = (int) (avenrun + FSCALE/2) >> FSHIFT;
2042 if (tTd(3, 1))
2043 sm_dprintf("getla: %d\n", loadav);
2044 return loadav;
2045 }
2046
2047 #endif /* LA_TYPE == LA_DEVSHORT */
2048
2049 #if LA_TYPE == LA_ALPHAOSF
2050 struct rtentry;
2051 struct mbuf;
2052 # include <sys/table.h>
2053
2054 int
getla()2055 getla()
2056 {
2057 int ave = 0;
2058 struct tbl_loadavg tab;
2059
2060 if (table(TBL_LOADAVG, 0, &tab, 1, sizeof(tab)) == -1)
2061 {
2062 if (tTd(3, 1))
2063 sm_dprintf("getla: table %s\n", sm_errstring(errno));
2064 return -1;
2065 }
2066
2067 if (tTd(3, 1))
2068 sm_dprintf("getla: scale = %d\n", tab.tl_lscale);
2069
2070 if (tab.tl_lscale)
2071 ave = ((tab.tl_avenrun.l[2] + (tab.tl_lscale/2)) /
2072 tab.tl_lscale);
2073 else
2074 ave = (int) (tab.tl_avenrun.d[2] + 0.5);
2075
2076 if (tTd(3, 1))
2077 sm_dprintf("getla: %d\n", ave);
2078
2079 return ave;
2080 }
2081
2082 #endif /* LA_TYPE == LA_ALPHAOSF */
2083
2084 #if LA_TYPE == LA_PSET
2085
2086 int
getla()2087 getla()
2088 {
2089 double avenrun[3];
2090
2091 if (pset_getloadavg(PS_MYID, avenrun,
2092 sizeof(avenrun) / sizeof(avenrun[0])) < 0)
2093 {
2094 if (tTd(3, 1))
2095 sm_dprintf("getla: pset_getloadavg failed: %s",
2096 sm_errstring(errno));
2097 return -1;
2098 }
2099 if (tTd(3, 1))
2100 sm_dprintf("getla: %d\n", (int) (avenrun[0] +0.5));
2101 return ((int) (avenrun[0] + 0.5));
2102 }
2103
2104 #endif /* LA_TYPE == LA_PSET */
2105
2106 #if LA_TYPE == LA_ZERO
2107
2108 int
getla()2109 getla()
2110 {
2111 if (tTd(3, 1))
2112 sm_dprintf("getla: ZERO\n");
2113 return 0;
2114 }
2115
2116 #endif /* LA_TYPE == LA_ZERO */
2117
2118 /*
2119 * Copyright 1989 Massachusetts Institute of Technology
2120 *
2121 * Permission to use, copy, modify, distribute, and sell this software and its
2122 * documentation for any purpose is hereby granted without fee, provided that
2123 * the above copyright notice appear in all copies and that both that
2124 * copyright notice and this permission notice appear in supporting
2125 * documentation, and that the name of M.I.T. not be used in advertising or
2126 * publicity pertaining to distribution of the software without specific,
2127 * written prior permission. M.I.T. makes no representations about the
2128 * suitability of this software for any purpose. It is provided "as is"
2129 * without express or implied warranty.
2130 *
2131 * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
2132 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
2133 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
2134 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
2135 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
2136 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
2137 *
2138 * Authors: Many and varied...
2139 */
2140
2141 /* Non Apollo stuff removed by Don Lewis 11/15/93 */
2142 #ifndef lint
2143 SM_UNUSED(static char rcsid[]) = "@(#)$OrigId: getloadavg.c,v 1.16 1991/06/21 12:51:15 paul Exp $";
2144 #endif
2145
2146 #ifdef apollo
2147 # undef volatile
2148 # include <apollo/base.h>
2149
2150 /* ARGSUSED */
getloadavg(call_data)2151 int getloadavg( call_data )
2152 caddr_t call_data; /* pointer to (double) return value */
2153 {
2154 double *avenrun = (double *) call_data;
2155 int i;
2156 status_$t st;
2157 long loadav[3];
2158
2159 proc1_$get_loadav(loadav, &st);
2160 *avenrun = loadav[0] / (double) (1 << 16);
2161 return 0;
2162 }
2163 #endif /* apollo */
2164 /*
2165 ** SM_GETLA -- get the current load average
2166 **
2167 ** Parameters:
2168 ** none
2169 **
2170 ** Returns:
2171 ** none
2172 **
2173 ** Side Effects:
2174 ** Set CurrentLA to the current load average.
2175 ** Set {load_avg} in GlobalMacros to the current load average.
2176 */
2177
2178 void
sm_getla()2179 sm_getla()
2180 {
2181 char labuf[8];
2182
2183 CurrentLA = getla();
2184 (void) sm_snprintf(labuf, sizeof(labuf), "%d", CurrentLA);
2185 macdefine(&GlobalMacros, A_TEMP, macid("{load_avg}"), labuf);
2186 }
2187 /*
2188 ** SHOULDQUEUE -- should this message be queued or sent?
2189 **
2190 ** Compares the message cost to the load average to decide.
2191 **
2192 ** Note: Do NOT change this API! It is documented in op.me
2193 ** and theoretically the user can change this function...
2194 **
2195 ** Parameters:
2196 ** pri -- the priority of the message in question.
2197 ** ct -- the message creation time (unused, but see above).
2198 **
2199 ** Returns:
2200 ** true -- if this message should be queued up for the
2201 ** time being.
2202 ** false -- if the load is low enough to send this message.
2203 **
2204 ** Side Effects:
2205 ** none.
2206 */
2207
2208 /* ARGSUSED1 */
2209 bool
shouldqueue(pri,ct)2210 shouldqueue(pri, ct)
2211 long pri;
2212 time_t ct;
2213 {
2214 bool rval;
2215 #if _FFR_MEMSTAT
2216 long memfree;
2217 #endif
2218
2219 if (tTd(3, 30))
2220 sm_dprintf("shouldqueue: CurrentLA=%d, pri=%ld: ",
2221 CurrentLA, pri);
2222
2223 #if _FFR_MEMSTAT
2224 if (QueueLowMem > 0 &&
2225 sm_memstat_get(MemoryResource, &memfree) >= 0 &&
2226 memfree < QueueLowMem)
2227 {
2228 if (tTd(3, 30))
2229 sm_dprintf("true (memfree=%ld < QueueLowMem=%ld)\n",
2230 memfree, QueueLowMem);
2231 return true;
2232 }
2233 #endif /* _FFR_MEMSTAT */
2234 if (CurrentLA < QueueLA)
2235 {
2236 if (tTd(3, 30))
2237 sm_dprintf("false (CurrentLA < QueueLA)\n");
2238 return false;
2239 }
2240 rval = pri > (QueueFactor / (CurrentLA - QueueLA + 1));
2241 if (tTd(3, 30))
2242 sm_dprintf("%s (by calculation)\n", rval ? "true" : "false");
2243 return rval;
2244 }
2245
2246 /*
2247 ** REFUSECONNECTIONS -- decide if connections should be refused
2248 **
2249 ** Parameters:
2250 ** e -- the current envelope.
2251 ** dn -- number of daemon.
2252 ** active -- was this daemon actually active?
2253 **
2254 ** Returns:
2255 ** true if incoming SMTP connections should be refused
2256 ** (for now).
2257 ** false if we should accept new work.
2258 **
2259 ** Side Effects:
2260 ** Sets process title when it is rejecting connections.
2261 */
2262
2263 bool
refuseconnections(e,dn,active)2264 refuseconnections(e, dn, active)
2265 ENVELOPE *e;
2266 int dn;
2267 bool active;
2268 {
2269 static time_t lastconn[MAXDAEMONS];
2270 static int conncnt[MAXDAEMONS];
2271 static time_t firstrejtime[MAXDAEMONS];
2272 static time_t nextlogtime[MAXDAEMONS];
2273 int limit;
2274 #if _FFR_MEMSTAT
2275 long memfree;
2276 #endif
2277
2278 #if XLA
2279 if (!xla_smtp_ok())
2280 return true;
2281 #endif
2282
2283 SM_ASSERT(dn >= 0);
2284 SM_ASSERT(dn < MAXDAEMONS);
2285 if (ConnRateThrottle > 0)
2286 {
2287 time_t now;
2288
2289 now = curtime();
2290 if (active)
2291 {
2292 if (now != lastconn[dn])
2293 {
2294 lastconn[dn] = now;
2295 conncnt[dn] = 1;
2296 }
2297 else if (conncnt[dn]++ > ConnRateThrottle)
2298 {
2299 #define D_MSG_CRT "deferring connections on daemon %s: %d per second"
2300 /* sleep to flatten out connection load */
2301 sm_setproctitle(true, e, D_MSG_CRT,
2302 Daemons[dn].d_name,
2303 ConnRateThrottle);
2304 if (LogLevel > 8)
2305 sm_syslog(LOG_INFO, NOQID, D_MSG_CRT,
2306 Daemons[dn].d_name,
2307 ConnRateThrottle);
2308 (void) sleep(1);
2309 }
2310 }
2311 else if (now != lastconn[dn])
2312 conncnt[dn] = 0;
2313 }
2314
2315
2316 #if _FFR_MEMSTAT
2317 if (RefuseLowMem > 0 &&
2318 sm_memstat_get(MemoryResource, &memfree) >= 0 &&
2319 memfree < RefuseLowMem)
2320 {
2321 # define R_MSG_LM "rejecting connections on daemon %s: free memory: %ld"
2322 sm_setproctitle(true, e, R_MSG_LM, Daemons[dn].d_name, memfree);
2323 if (LogLevel > 8)
2324 sm_syslog(LOG_NOTICE, NOQID, R_MSG_LM,
2325 Daemons[dn].d_name, memfree);
2326 return true;
2327 }
2328 #endif /* _FFR_MEMSTAT */
2329 sm_getla();
2330 limit = (Daemons[dn].d_refuseLA != DPO_NOTSET) ?
2331 Daemons[dn].d_refuseLA : RefuseLA;
2332 if (limit > 0 && CurrentLA >= limit)
2333 {
2334 time_t now;
2335
2336 # define R_MSG_LA "rejecting connections on daemon %s: load average: %d"
2337 # define R2_MSG_LA "have been rejecting connections on daemon %s for %s"
2338 sm_setproctitle(true, e, R_MSG_LA, Daemons[dn].d_name,
2339 CurrentLA);
2340 if (LogLevel > 8)
2341 sm_syslog(LOG_NOTICE, NOQID, R_MSG_LA,
2342 Daemons[dn].d_name, CurrentLA);
2343 now = curtime();
2344 if (firstrejtime[dn] == 0)
2345 {
2346 firstrejtime[dn] = now;
2347 nextlogtime[dn] = now + RejectLogInterval;
2348 }
2349 else if (nextlogtime[dn] < now)
2350 {
2351 sm_syslog(LOG_ERR, NOQID, R2_MSG_LA, Daemons[dn].d_name,
2352 pintvl(now - firstrejtime[dn], true));
2353 nextlogtime[dn] = now + RejectLogInterval;
2354 }
2355 return true;
2356 }
2357 else
2358 firstrejtime[dn] = 0;
2359
2360 limit = (Daemons[dn].d_delayLA != DPO_NOTSET) ?
2361 Daemons[dn].d_delayLA : DelayLA;
2362 if (limit > 0 && CurrentLA >= limit)
2363 {
2364 time_t now;
2365 static time_t log_delay = (time_t) 0;
2366
2367 # define MIN_DELAY_LOG 90 /* wait before logging this again */
2368 # define D_MSG_LA "delaying connections on daemon %s: load average=%d >= %d"
2369 /* sleep to flatten out connection load */
2370 sm_setproctitle(true, e, D_MSG_LA, Daemons[dn].d_name,
2371 CurrentLA, limit);
2372 if (LogLevel > 8 && (now = curtime()) > log_delay)
2373 {
2374 sm_syslog(LOG_INFO, NOQID, D_MSG_LA,
2375 Daemons[dn].d_name, CurrentLA, limit);
2376 log_delay = now + MIN_DELAY_LOG;
2377 }
2378 (void) sleep(1);
2379 }
2380
2381 limit = (Daemons[dn].d_maxchildren != DPO_NOTSET) ?
2382 Daemons[dn].d_maxchildren : MaxChildren;
2383 if (limit > 0 && CurChildren >= limit)
2384 {
2385 proc_list_probe();
2386 if (CurChildren >= limit)
2387 {
2388 #define R_MSG_CHILD "rejecting connections on daemon %s: %d children, max %d"
2389 sm_setproctitle(true, e, R_MSG_CHILD,
2390 Daemons[dn].d_name, CurChildren,
2391 limit);
2392 if (LogLevel > 8)
2393 sm_syslog(LOG_INFO, NOQID, R_MSG_CHILD,
2394 Daemons[dn].d_name, CurChildren,
2395 limit);
2396 return true;
2397 }
2398 }
2399 return false;
2400 }
2401
2402 /*
2403 ** SETPROCTITLE -- set process title for ps
2404 **
2405 ** Parameters:
2406 ** fmt -- a printf style format string.
2407 ** a, b, c -- possible parameters to fmt.
2408 **
2409 ** Returns:
2410 ** none.
2411 **
2412 ** Side Effects:
2413 ** Clobbers argv of our main procedure so ps(1) will
2414 ** display the title.
2415 */
2416
2417 #define SPT_NONE 0 /* don't use it at all */
2418 #define SPT_REUSEARGV 1 /* cover argv with title information */
2419 #define SPT_BUILTIN 2 /* use libc builtin */
2420 #define SPT_PSTAT 3 /* use pstat(PSTAT_SETCMD, ...) */
2421 #define SPT_PSSTRINGS 4 /* use PS_STRINGS->... */
2422 #define SPT_SYSMIPS 5 /* use sysmips() supported by NEWS-OS 6 */
2423 #define SPT_SCO 6 /* write kernel u. area */
2424 #define SPT_CHANGEARGV 7 /* write our own strings into argv[] */
2425
2426 #ifndef SPT_TYPE
2427 # define SPT_TYPE SPT_REUSEARGV
2428 #endif
2429
2430
2431 #if SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN
2432
2433 # if SPT_TYPE == SPT_PSTAT
2434 # include <sys/pstat.h>
2435 # endif
2436 # if SPT_TYPE == SPT_PSSTRINGS
2437 # include <machine/vmparam.h>
2438 # include <sys/exec.h>
2439 # ifndef PS_STRINGS /* hmmmm.... apparently not available after all */
2440 # undef SPT_TYPE
2441 # define SPT_TYPE SPT_REUSEARGV
2442 # else /* ! PS_STRINGS */
2443 # ifndef NKPDE /* FreeBSD 2.0 */
2444 # define NKPDE 63
2445 typedef unsigned int *pt_entry_t;
2446 # endif /* ! NKPDE */
2447 # endif /* ! PS_STRINGS */
2448 # endif /* SPT_TYPE == SPT_PSSTRINGS */
2449
2450 # if SPT_TYPE == SPT_PSSTRINGS || SPT_TYPE == SPT_CHANGEARGV
2451 # define SETPROC_STATIC static
2452 # else
2453 # define SETPROC_STATIC
2454 # endif
2455
2456 # if SPT_TYPE == SPT_SYSMIPS
2457 # include <sys/sysmips.h>
2458 # include <sys/sysnews.h>
2459 # endif
2460
2461 # if SPT_TYPE == SPT_SCO
2462 # include <sys/immu.h>
2463 # include <sys/dir.h>
2464 # include <sys/user.h>
2465 # include <sys/fs/s5param.h>
2466 # if PSARGSZ > MAXLINE
2467 # define SPT_BUFSIZE PSARGSZ
2468 # endif
2469 # endif /* SPT_TYPE == SPT_SCO */
2470
2471 # ifndef SPT_PADCHAR
2472 # define SPT_PADCHAR ' '
2473 # endif
2474
2475 #endif /* SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN */
2476
2477 #ifndef SPT_BUFSIZE
2478 # define SPT_BUFSIZE MAXLINE
2479 #endif
2480
2481 #if _FFR_SPT_ALIGN
2482
2483 /*
2484 ** It looks like the Compaq Tru64 5.1A now aligns argv and envp to
2485 ** 64 bit alignment, so unless each piece of argv and envp is a multiple
2486 ** of 8 bytes (including terminating NULL), initsetproctitle() won't use
2487 ** any of the space beyond argv[0]. Be sure to set SPT_ALIGN_SIZE if
2488 ** you use this FFR.
2489 */
2490
2491 # ifdef SPT_ALIGN_SIZE
2492 # define SPT_ALIGN(x, align) (((((x) + SPT_ALIGN_SIZE) >> (align)) << (align)) - 1)
2493 # else
2494 # define SPT_ALIGN(x, align) (x)
2495 # endif
2496 #else /* _FFR_SPT_ALIGN */
2497 # define SPT_ALIGN(x, align) (x)
2498 #endif /* _FFR_SPT_ALIGN */
2499
2500 /*
2501 ** Pointers for setproctitle.
2502 ** This allows "ps" listings to give more useful information.
2503 */
2504
2505 static char **Argv = NULL; /* pointer to argument vector */
2506 static char *LastArgv = NULL; /* end of argv */
2507 #if SPT_TYPE != SPT_BUILTIN
2508 static void setproctitle __P((const char *, ...));
2509 #endif
2510
2511 void
initsetproctitle(argc,argv,envp)2512 initsetproctitle(argc, argv, envp)
2513 int argc;
2514 char **argv;
2515 char **envp;
2516 {
2517 register int i;
2518 #if _FFR_SPT_ALIGN
2519 int align;
2520 #endif
2521 extern char **environ;
2522
2523 /*
2524 ** Move the environment so setproctitle can use the space at
2525 ** the top of memory.
2526 */
2527
2528 if (envp != NULL)
2529 {
2530 for (i = 0; envp[i] != NULL; i++)
2531 continue;
2532 environ = (char **) xalloc(sizeof(char *) * (i + 1));
2533 for (i = 0; envp[i] != NULL; i++)
2534 environ[i] = newstr(envp[i]);
2535 environ[i] = NULL;
2536 }
2537
2538 /*
2539 ** Save start and extent of argv for setproctitle.
2540 */
2541
2542 Argv = argv;
2543
2544 /*
2545 ** Determine how much space we can use for setproctitle.
2546 ** Use all contiguous argv and envp pointers starting at argv[0]
2547 */
2548
2549 # if _FFR_SPT_ALIGN
2550 align = -1;
2551 # ifdef SPT_ALIGN_SIZE
2552 for (i = SPT_ALIGN_SIZE; i > 0; i >>= 1)
2553 align++;
2554 # endif
2555 # endif /* _FFR_SPT_ALIGN */
2556
2557 for (i = 0; i < argc; i++)
2558 {
2559 if (i == 0 || LastArgv + 1 == argv[i])
2560 LastArgv = argv[i] + SPT_ALIGN(strlen(argv[i]), align);
2561 }
2562 for (i = 0; LastArgv != NULL && envp != NULL && envp[i] != NULL; i++)
2563 {
2564 if (LastArgv + 1 == envp[i])
2565 LastArgv = envp[i] + SPT_ALIGN(strlen(envp[i]), align);
2566 }
2567 }
2568
2569 #if SPT_TYPE != SPT_BUILTIN
2570
2571 /*VARARGS1*/
2572 static void
2573 # ifdef __STDC__
setproctitle(const char * fmt,...)2574 setproctitle(const char *fmt, ...)
2575 # else /* __STDC__ */
2576 setproctitle(fmt, va_alist)
2577 const char *fmt;
2578 va_dcl
2579 # endif /* __STDC__ */
2580 {
2581 # if SPT_TYPE != SPT_NONE
2582 register int i;
2583 register char *p;
2584 SETPROC_STATIC char buf[SPT_BUFSIZE];
2585 SM_VA_LOCAL_DECL
2586 # if SPT_TYPE == SPT_PSTAT
2587 union pstun pst;
2588 # endif
2589 # if SPT_TYPE == SPT_SCO
2590 int j;
2591 off_t seek_off;
2592 static int kmem = -1;
2593 static pid_t kmempid = -1;
2594 struct user u;
2595 # endif /* SPT_TYPE == SPT_SCO */
2596
2597 p = buf;
2598
2599 /* print sendmail: heading for grep */
2600 (void) sm_strlcpy(p, "sendmail: ", SPACELEFT(buf, p));
2601 p += strlen(p);
2602
2603 /* print the argument string */
2604 SM_VA_START(ap, fmt);
2605 (void) sm_vsnprintf(p, SPACELEFT(buf, p), fmt, ap);
2606 SM_VA_END(ap);
2607
2608 i = (int) strlen(buf);
2609 if (i < 0)
2610 return;
2611
2612 # if SPT_TYPE == SPT_PSTAT
2613 pst.pst_command = buf;
2614 pstat(PSTAT_SETCMD, pst, i, 0, 0);
2615 # endif
2616 # if SPT_TYPE == SPT_PSSTRINGS
2617 PS_STRINGS->ps_nargvstr = 1;
2618 PS_STRINGS->ps_argvstr = buf;
2619 # endif
2620 # if SPT_TYPE == SPT_SYSMIPS
2621 sysmips(SONY_SYSNEWS, NEWS_SETPSARGS, buf);
2622 # endif
2623 # if SPT_TYPE == SPT_SCO
2624 if (kmem < 0 || kmempid != CurrentPid)
2625 {
2626 if (kmem >= 0)
2627 (void) close(kmem);
2628 kmem = open(_PATH_KMEM, O_RDWR, 0);
2629 if (kmem < 0)
2630 return;
2631 if ((j = fcntl(kmem, F_GETFD, 0)) < 0 ||
2632 fcntl(kmem, F_SETFD, j | FD_CLOEXEC) < 0)
2633 {
2634 (void) close(kmem);
2635 kmem = -1;
2636 return;
2637 }
2638 kmempid = CurrentPid;
2639 }
2640 buf[PSARGSZ - 1] = '\0';
2641 seek_off = UVUBLK + (off_t) u.u_psargs - (off_t) &u;
2642 if (lseek(kmem, (off_t) seek_off, SEEK_SET) == seek_off)
2643 (void) write(kmem, buf, PSARGSZ);
2644 # endif /* SPT_TYPE == SPT_SCO */
2645 # if SPT_TYPE == SPT_REUSEARGV
2646 if (LastArgv == NULL)
2647 return;
2648
2649 if (i > LastArgv - Argv[0] - 2)
2650 {
2651 i = LastArgv - Argv[0] - 2;
2652 buf[i] = '\0';
2653 }
2654 (void) sm_strlcpy(Argv[0], buf, i + 1);
2655 p = &Argv[0][i];
2656 while (p < LastArgv)
2657 *p++ = SPT_PADCHAR;
2658 Argv[1] = NULL;
2659 # endif /* SPT_TYPE == SPT_REUSEARGV */
2660 # if SPT_TYPE == SPT_CHANGEARGV
2661 Argv[0] = buf;
2662 Argv[1] = NULL;
2663 # endif
2664 # endif /* SPT_TYPE != SPT_NONE */
2665 }
2666 #endif /* SPT_TYPE != SPT_BUILTIN */
2667
2668 /*
2669 ** SM_SETPROCTITLE -- set process task and set process title for ps
2670 **
2671 ** Possibly set process status and call setproctitle() to
2672 ** change the ps display.
2673 **
2674 ** Parameters:
2675 ** status -- whether or not to store as process status
2676 ** e -- the current envelope.
2677 ** fmt -- a printf style format string.
2678 ** a, b, c -- possible parameters to fmt.
2679 **
2680 ** Returns:
2681 ** none.
2682 */
2683
2684 /*VARARGS3*/
2685 void
2686 #ifdef __STDC__
sm_setproctitle(bool status,ENVELOPE * e,const char * fmt,...)2687 sm_setproctitle(bool status, ENVELOPE *e, const char *fmt, ...)
2688 #else /* __STDC__ */
2689 sm_setproctitle(status, e, fmt, va_alist)
2690 bool status;
2691 ENVELOPE *e;
2692 const char *fmt;
2693 va_dcl
2694 #endif /* __STDC__ */
2695 {
2696 char buf[SPT_BUFSIZE];
2697 SM_VA_LOCAL_DECL
2698
2699 /* print the argument string */
2700 SM_VA_START(ap, fmt);
2701 (void) sm_vsnprintf(buf, sizeof(buf), fmt, ap);
2702 SM_VA_END(ap);
2703
2704 if (status)
2705 proc_list_set(CurrentPid, buf);
2706
2707 if (ProcTitlePrefix != NULL)
2708 {
2709 char prefix[SPT_BUFSIZE];
2710
2711 expand(ProcTitlePrefix, prefix, sizeof(prefix), e);
2712 setproctitle("%s: %s", prefix, buf);
2713 }
2714 else
2715 setproctitle("%s", buf);
2716 }
2717 /*
2718 ** WAITFOR -- wait for a particular process id.
2719 **
2720 ** Parameters:
2721 ** pid -- process id to wait for.
2722 **
2723 ** Returns:
2724 ** status of pid.
2725 ** -1 if pid never shows up.
2726 **
2727 ** Side Effects:
2728 ** none.
2729 */
2730
2731 int
waitfor(pid)2732 waitfor(pid)
2733 pid_t pid;
2734 {
2735 int st;
2736 pid_t i;
2737
2738 do
2739 {
2740 errno = 0;
2741 i = sm_wait(&st);
2742 if (i > 0)
2743 proc_list_drop(i, st, NULL);
2744 } while ((i >= 0 || errno == EINTR) && i != pid);
2745 if (i < 0)
2746 return -1;
2747 return st;
2748 }
2749 /*
2750 ** SM_WAIT -- wait
2751 **
2752 ** Parameters:
2753 ** status -- pointer to status (return value)
2754 **
2755 ** Returns:
2756 ** pid
2757 */
2758
2759 pid_t
sm_wait(status)2760 sm_wait(status)
2761 int *status;
2762 {
2763 # ifdef WAITUNION
2764 union wait st;
2765 # else
2766 auto int st;
2767 # endif
2768 pid_t i;
2769 # if defined(ISC_UNIX) || defined(_SCO_unix_)
2770 int savesig;
2771 # endif
2772
2773 # if defined(ISC_UNIX) || defined(_SCO_unix_)
2774 savesig = sm_releasesignal(SIGCHLD);
2775 # endif
2776 i = wait(&st);
2777 # if defined(ISC_UNIX) || defined(_SCO_unix_)
2778 if (savesig > 0)
2779 sm_blocksignal(SIGCHLD);
2780 # endif
2781 # ifdef WAITUNION
2782 *status = st.w_status;
2783 # else
2784 *status = st;
2785 # endif
2786 return i;
2787 }
2788 /*
2789 ** REAPCHILD -- pick up the body of my child, lest it become a zombie
2790 **
2791 ** Parameters:
2792 ** sig -- the signal that got us here (unused).
2793 **
2794 ** Returns:
2795 ** none.
2796 **
2797 ** Side Effects:
2798 ** Picks up extant zombies.
2799 ** Control socket exits may restart/shutdown daemon.
2800 **
2801 ** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD
2802 ** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE
2803 ** DOING.
2804 */
2805
2806 /* ARGSUSED0 */
2807 SIGFUNC_DECL
reapchild(sig)2808 reapchild(sig)
2809 int sig;
2810 {
2811 int save_errno = errno;
2812 int st;
2813 pid_t pid;
2814 # if HASWAITPID
2815 auto int status;
2816 int count;
2817
2818 count = 0;
2819 while ((pid = waitpid(-1, &status, WNOHANG)) > 0)
2820 {
2821 st = status;
2822 if (count++ > 1000)
2823 break;
2824 # else /* HASWAITPID */
2825 # ifdef WNOHANG
2826 union wait status;
2827
2828 while ((pid = wait3(&status, WNOHANG, (struct rusage *) NULL)) > 0)
2829 {
2830 st = status.w_status;
2831 # else /* WNOHANG */
2832 auto int status;
2833
2834 /*
2835 ** Catch one zombie -- we will be re-invoked (we hope) if there
2836 ** are more. Unreliable signals probably break this, but this
2837 ** is the "old system" situation -- waitpid or wait3 are to be
2838 ** strongly preferred.
2839 */
2840
2841 if ((pid = wait(&status)) > 0)
2842 {
2843 st = status;
2844 # endif /* WNOHANG */
2845 # endif /* HASWAITPID */
2846 /* Drop PID and check if it was a control socket child */
2847 proc_list_drop(pid, st, NULL);
2848 }
2849 FIX_SYSV_SIGNAL(sig, reapchild);
2850 errno = save_errno;
2851 return SIGFUNC_RETURN;
2852 }
2853 /*
2854 ** GETDTSIZE -- return number of file descriptors
2855 **
2856 ** Only on non-BSD systems
2857 **
2858 ** Parameters:
2859 ** none
2860 **
2861 ** Returns:
2862 ** size of file descriptor table
2863 **
2864 ** Side Effects:
2865 ** none
2866 */
2867
2868 #ifdef SOLARIS
2869 # include <sys/resource.h>
2870 #endif
2871
2872 int
getdtsize()2873 getdtsize()
2874 {
2875 # ifdef RLIMIT_NOFILE
2876 struct rlimit rl;
2877
2878 if (getrlimit(RLIMIT_NOFILE, &rl) >= 0)
2879 return rl.rlim_cur;
2880 # endif /* RLIMIT_NOFILE */
2881
2882 # if HASGETDTABLESIZE
2883 return getdtablesize();
2884 # else /* HASGETDTABLESIZE */
2885 # ifdef _SC_OPEN_MAX
2886 return sysconf(_SC_OPEN_MAX);
2887 # else
2888 return NOFILE;
2889 # endif
2890 # endif /* HASGETDTABLESIZE */
2891 }
2892 /*
2893 ** UNAME -- get the UUCP name of this system.
2894 */
2895
2896 #if !HASUNAME
2897
2898 int
uname(name)2899 uname(name)
2900 struct utsname *name;
2901 {
2902 SM_FILE_T *file;
2903 char *n;
2904
2905 name->nodename[0] = '\0';
2906
2907 /* try /etc/whoami -- one line with the node name */
2908 if ((file = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, "/etc/whoami",
2909 SM_IO_RDONLY, NULL)) != NULL)
2910 {
2911 (void) sm_io_fgets(file, SM_TIME_DEFAULT, name->nodename,
2912 NODE_LENGTH + 1);
2913 (void) sm_io_close(file, SM_TIME_DEFAULT);
2914 n = strchr(name->nodename, '\n');
2915 if (n != NULL)
2916 *n = '\0';
2917 if (name->nodename[0] != '\0')
2918 return 0;
2919 }
2920
2921 /* try /usr/include/whoami.h -- has a #define somewhere */
2922 if ((file = sm_io_open(SmFtStdio, SM_TIME_DEFAULT,
2923 "/usr/include/whoami.h", SM_IO_RDONLY, NULL))
2924 != NULL)
2925 {
2926 char buf[MAXLINE];
2927
2928 while (sm_io_fgets(file, SM_TIME_DEFAULT,
2929 buf, sizeof(buf)) >= 0)
2930 {
2931 if (sm_io_sscanf(buf, "#define sysname \"%*[^\"]\"",
2932 NODE_LENGTH, name->nodename) > 0)
2933 break;
2934 }
2935 (void) sm_io_close(file, SM_TIME_DEFAULT);
2936 if (name->nodename[0] != '\0')
2937 return 0;
2938 }
2939
2940 return -1;
2941 }
2942 #endif /* !HASUNAME */
2943 /*
2944 ** INITGROUPS -- initialize groups
2945 **
2946 ** Stub implementation for System V style systems
2947 */
2948
2949 #if !HASINITGROUPS
initgroups(name,basegid)2950 initgroups(name, basegid)
2951 char *name;
2952 int basegid;
2953 {
2954 return 0;
2955 }
2956 #endif /* !HASINITGROUPS */
2957
2958 /*
2959 ** SETGROUPS -- set group list
2960 **
2961 ** Stub implementation for systems that don't have group lists
2962 */
2963
2964 #ifndef NGROUPS_MAX
2965 int
setgroups(ngroups,grouplist)2966 setgroups(ngroups, grouplist)
2967 int ngroups;
2968 GIDSET_T grouplist[];
2969 {
2970 return 0;
2971 }
2972 #endif /* ! NGROUPS_MAX */
2973
2974 /*
2975 ** SETSID -- set session id (for non-POSIX systems)
2976 */
2977
2978 #if !HASSETSID
2979
2980 pid_t
setsid(void)2981 setsid __P ((void))
2982 {
2983 # ifdef TIOCNOTTY
2984 int fd;
2985
2986 fd = open("/dev/tty", O_RDWR, 0);
2987 if (fd >= 0)
2988 {
2989 (void) ioctl(fd, TIOCNOTTY, (char *) 0);
2990 (void) close(fd);
2991 }
2992 # endif /* TIOCNOTTY */
2993 # ifdef SYS5SETPGRP
2994 return setpgrp();
2995 # else
2996 return setpgid(0, CurrentPid);
2997 # endif
2998 }
2999
3000 #endif /* !HASSETSID */
3001 /*
3002 ** FSYNC -- dummy fsync
3003 */
3004
3005 #if NEEDFSYNC
3006
fsync(fd)3007 fsync(fd)
3008 int fd;
3009 {
3010 # ifdef O_SYNC
3011 return fcntl(fd, F_SETFL, O_SYNC);
3012 # else
3013 /* nothing we can do */
3014 return 0;
3015 # endif
3016 }
3017 #endif /* NEEDFSYNC */
3018
3019 /*
3020 ** DGUX_INET_ADDR -- inet_addr for DG/UX
3021 **
3022 ** Data General DG/UX version of inet_addr returns a struct in_addr
3023 ** instead of a long. This patches things. Only needed on versions
3024 ** prior to 5.4.3.
3025 */
3026
3027 #ifdef DGUX_5_4_2
3028
3029 # undef inet_addr
3030
3031 long
dgux_inet_addr(host)3032 dgux_inet_addr(host)
3033 char *host;
3034 {
3035 struct in_addr haddr;
3036
3037 haddr = inet_addr(host);
3038 return haddr.s_addr;
3039 }
3040
3041 #endif /* DGUX_5_4_2 */
3042 /*
3043 ** GETOPT -- for old systems or systems with bogus implementations
3044 */
3045
3046 #if !SM_CONF_GETOPT
3047
3048 /*
3049 * Copyright (c) 1985 Regents of the University of California.
3050 * All rights reserved. The Berkeley software License Agreement
3051 * specifies the terms and conditions for redistribution.
3052 */
3053
3054
3055 /*
3056 ** this version hacked to add `atend' flag to allow state machine
3057 ** to reset if invoked by the program to scan args for a 2nd time
3058 */
3059
3060 # if defined(LIBC_SCCS) && !defined(lint)
3061 static char sccsid[] = "@(#)getopt.c 4.3 (Berkeley) 3/9/86";
3062 # endif
3063
3064 /*
3065 ** get option letter from argument vector
3066 */
3067 # ifdef _CONVEX_SOURCE
3068 extern int optind, opterr, optopt;
3069 extern char *optarg;
3070 # else /* _CONVEX_SOURCE */
3071 int opterr = 1; /* if error message should be printed */
3072 int optind = 1; /* index into parent argv vector */
3073 int optopt = 0; /* character checked for validity */
3074 char *optarg = NULL; /* argument associated with option */
3075 # endif /* _CONVEX_SOURCE */
3076
3077 # define BADCH (int)'?'
3078 # define EMSG ""
3079 # define tell(s) if (opterr) \
3080 {sm_io_fputs(smioerr, SM_TIME_DEFAULT, *nargv); \
3081 (void) sm_io_fputs(smioerr, SM_TIME_DEFAULT, s); \
3082 (void) sm_io_putc(smioerr, SM_TIME_DEFAULT, optopt); \
3083 (void) sm_io_putc(smioerr, SM_TIME_DEFAULT, '\n'); \
3084 return BADCH;}
3085
3086 int
getopt(nargc,nargv,ostr)3087 getopt(nargc,nargv,ostr)
3088 int nargc;
3089 char *const *nargv;
3090 const char *ostr;
3091 {
3092 static char *place = EMSG; /* option letter processing */
3093 static char atend = 0;
3094 register char *oli = NULL; /* option letter list index */
3095
3096 if (atend) {
3097 atend = 0;
3098 place = EMSG;
3099 }
3100 if(!*place) { /* update scanning pointer */
3101 if (optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) {
3102 atend++;
3103 return -1;
3104 }
3105 if (*place == '-') { /* found "--" */
3106 ++optind;
3107 atend++;
3108 return -1;
3109 }
3110 } /* option letter okay? */
3111 if ((optopt = (int)*place++) == (int)':' || !(oli = strchr(ostr,optopt))) {
3112 if (!*place) ++optind;
3113 tell(": illegal option -- ");
3114 }
3115 if (oli && *++oli != ':') { /* don't need argument */
3116 optarg = NULL;
3117 if (!*place) ++optind;
3118 }
3119 else { /* need an argument */
3120 if (*place) optarg = place; /* no white space */
3121 else if (nargc <= ++optind) { /* no arg */
3122 place = EMSG;
3123 tell(": option requires an argument -- ");
3124 }
3125 else optarg = nargv[optind]; /* white space */
3126 place = EMSG;
3127 ++optind;
3128 }
3129 return optopt; /* dump back option letter */
3130 }
3131
3132 #endif /* !SM_CONF_GETOPT */
3133 /*
3134 ** USERSHELLOK -- tell if a user's shell is ok for unrestricted use
3135 **
3136 ** Parameters:
3137 ** user -- the name of the user we are checking.
3138 ** shell -- the user's shell from /etc/passwd
3139 **
3140 ** Returns:
3141 ** true -- if it is ok to use this for unrestricted access.
3142 ** false -- if the shell is restricted.
3143 */
3144
3145 #if !HASGETUSERSHELL
3146
3147 # ifndef _PATH_SHELLS
3148 # define _PATH_SHELLS "/etc/shells"
3149 # endif
3150
3151 # if defined(_AIX3) || defined(_AIX4)
3152 # include <userconf.h>
3153 # if _AIX4 >= 40200
3154 # include <userpw.h>
3155 # endif
3156 # include <usersec.h>
3157 # endif /* defined(_AIX3) || defined(_AIX4) */
3158
3159 static char *DefaultUserShells[] =
3160 {
3161 "/bin/sh", /* standard shell */
3162 # ifdef MPE
3163 "/SYS/PUB/CI",
3164 # else /* MPE */
3165 "/usr/bin/sh",
3166 "/bin/csh", /* C shell */
3167 "/usr/bin/csh",
3168 # endif /* MPE */
3169 # ifdef __hpux
3170 # ifdef V4FS
3171 "/usr/bin/rsh", /* restricted Bourne shell */
3172 "/usr/bin/ksh", /* Korn shell */
3173 "/usr/bin/rksh", /* restricted Korn shell */
3174 "/usr/bin/pam",
3175 "/usr/bin/keysh", /* key shell (extended Korn shell) */
3176 "/usr/bin/posix/sh",
3177 # else /* V4FS */
3178 "/bin/rsh", /* restricted Bourne shell */
3179 "/bin/ksh", /* Korn shell */
3180 "/bin/rksh", /* restricted Korn shell */
3181 "/bin/pam",
3182 "/usr/bin/keysh", /* key shell (extended Korn shell) */
3183 "/bin/posix/sh",
3184 "/sbin/sh",
3185 # endif /* V4FS */
3186 # endif /* __hpux */
3187 # if defined(_AIX3) || defined(_AIX4)
3188 "/bin/ksh", /* Korn shell */
3189 "/usr/bin/ksh",
3190 "/bin/tsh", /* trusted shell */
3191 "/usr/bin/tsh",
3192 "/bin/bsh", /* Bourne shell */
3193 "/usr/bin/bsh",
3194 # endif /* defined(_AIX3) || defined(_AIX4) */
3195 # if defined(__svr4__) || defined(__svr5__)
3196 "/bin/ksh", /* Korn shell */
3197 "/usr/bin/ksh",
3198 # endif /* defined(__svr4__) || defined(__svr5__) */
3199 # ifdef sgi
3200 "/sbin/sh", /* SGI's shells really live in /sbin */
3201 "/usr/bin/sh",
3202 "/sbin/bsh", /* classic Bourne shell */
3203 "/bin/bsh",
3204 "/usr/bin/bsh",
3205 "/sbin/csh", /* standard csh */
3206 "/bin/csh",
3207 "/usr/bin/csh",
3208 "/sbin/jsh", /* classic Bourne shell w/ job control*/
3209 "/bin/jsh",
3210 "/usr/bin/jsh",
3211 "/bin/ksh", /* Korn shell */
3212 "/sbin/ksh",
3213 "/usr/bin/ksh",
3214 "/sbin/tcsh", /* Extended csh */
3215 "/bin/tcsh",
3216 "/usr/bin/tcsh",
3217 # endif /* sgi */
3218 NULL
3219 };
3220
3221 #endif /* !HASGETUSERSHELL */
3222
3223 #define WILDCARD_SHELL "/SENDMAIL/ANY/SHELL/"
3224
3225 bool
usershellok(user,shell)3226 usershellok(user, shell)
3227 char *user;
3228 char *shell;
3229 {
3230 # if HASGETUSERSHELL
3231 register char *p;
3232 extern char *getusershell();
3233
3234 if (shell == NULL || shell[0] == '\0' || wordinclass(user, 't') ||
3235 ConfigLevel <= 1)
3236 return true;
3237
3238 setusershell();
3239 while ((p = getusershell()) != NULL)
3240 if (strcmp(p, shell) == 0 || strcmp(p, WILDCARD_SHELL) == 0)
3241 break;
3242 endusershell();
3243 return p != NULL;
3244 # else /* HASGETUSERSHELL */
3245 # if USEGETCONFATTR
3246 auto char *v;
3247 # endif
3248 register SM_FILE_T *shellf;
3249 char buf[MAXLINE];
3250
3251 if (shell == NULL || shell[0] == '\0' || wordinclass(user, 't') ||
3252 ConfigLevel <= 1)
3253 return true;
3254
3255 # if USEGETCONFATTR
3256 /*
3257 ** Naturally IBM has a "better" idea.....
3258 **
3259 ** What a crock. This interface isn't documented, it is
3260 ** considered part of the security library (-ls), and it
3261 ** only works if you are running as root (since the list
3262 ** of valid shells is obviously a source of great concern).
3263 ** I recommend that you do NOT define USEGETCONFATTR,
3264 ** especially since you are going to have to set up an
3265 ** /etc/shells anyhow to handle the cases where getconfattr
3266 ** fails.
3267 */
3268
3269 if (getconfattr(SC_SYS_LOGIN, SC_SHELLS, &v, SEC_LIST) == 0 && v != NULL)
3270 {
3271 while (*v != '\0')
3272 {
3273 if (strcmp(v, shell) == 0 || strcmp(v, WILDCARD_SHELL) == 0)
3274 return true;
3275 v += strlen(v) + 1;
3276 }
3277 return false;
3278 }
3279 # endif /* USEGETCONFATTR */
3280
3281 shellf = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, _PATH_SHELLS,
3282 SM_IO_RDONLY, NULL);
3283 if (shellf == NULL)
3284 {
3285 /* no /etc/shells; see if it is one of the std shells */
3286 char **d;
3287
3288 if (errno != ENOENT && LogLevel > 3)
3289 sm_syslog(LOG_ERR, NOQID,
3290 "usershellok: cannot open %s: %s",
3291 _PATH_SHELLS, sm_errstring(errno));
3292
3293 for (d = DefaultUserShells; *d != NULL; d++)
3294 {
3295 if (strcmp(shell, *d) == 0)
3296 return true;
3297 }
3298 return false;
3299 }
3300
3301 while (sm_io_fgets(shellf, SM_TIME_DEFAULT, buf, sizeof(buf)) >= 0)
3302 {
3303 register char *p, *q;
3304
3305 p = buf;
3306 while (*p != '\0' && *p != '#' && *p != '/')
3307 p++;
3308 if (*p == '#' || *p == '\0')
3309 continue;
3310 q = p;
3311 while (*p != '\0' && *p != '#' && !(SM_ISSPACE(*p)))
3312 p++;
3313 *p = '\0';
3314 if (strcmp(shell, q) == 0 || strcmp(WILDCARD_SHELL, q) == 0)
3315 {
3316 (void) sm_io_close(shellf, SM_TIME_DEFAULT);
3317 return true;
3318 }
3319 }
3320 (void) sm_io_close(shellf, SM_TIME_DEFAULT);
3321 return false;
3322 # endif /* HASGETUSERSHELL */
3323 }
3324 /*
3325 ** FREEDISKSPACE -- see how much free space is on the queue filesystem
3326 **
3327 ** Only implemented if you have statfs.
3328 **
3329 ** Parameters:
3330 ** dir -- the directory in question.
3331 ** bsize -- a variable into which the filesystem
3332 ** block size is stored.
3333 **
3334 ** Returns:
3335 ** The number of blocks free on the queue filesystem.
3336 ** -1 if the statfs call fails.
3337 **
3338 ** Side effects:
3339 ** Puts the filesystem block size into bsize.
3340 */
3341
3342 /* statfs types */
3343 # define SFS_NONE 0 /* no statfs implementation */
3344 # define SFS_USTAT 1 /* use ustat */
3345 # define SFS_4ARGS 2 /* use four-argument statfs call */
3346 # define SFS_VFS 3 /* use <sys/vfs.h> implementation */
3347 # define SFS_MOUNT 4 /* use <sys/mount.h> implementation */
3348 # define SFS_STATFS 5 /* use <sys/statfs.h> implementation */
3349 # define SFS_STATVFS 6 /* use <sys/statvfs.h> implementation */
3350
3351 # ifndef SFS_TYPE
3352 # define SFS_TYPE SFS_NONE
3353 # endif
3354
3355 # if SFS_TYPE == SFS_USTAT
3356 # include <ustat.h>
3357 # endif
3358 # if SFS_TYPE == SFS_4ARGS || SFS_TYPE == SFS_STATFS
3359 # include <sys/statfs.h>
3360 # endif
3361 # if SFS_TYPE == SFS_VFS
3362 # include <sys/vfs.h>
3363 # endif
3364 # if SFS_TYPE == SFS_MOUNT
3365 # include <sys/mount.h>
3366 # endif
3367 # if SFS_TYPE == SFS_STATVFS
3368 # include <sys/statvfs.h>
3369 # endif
3370
3371 long
freediskspace(dir,bsize)3372 freediskspace(dir, bsize)
3373 const char *dir;
3374 long *bsize;
3375 {
3376 # if SFS_TYPE == SFS_NONE
3377 if (bsize != NULL)
3378 *bsize = 4096L;
3379
3380 /* assume free space is plentiful */
3381 return (long) LONG_MAX;
3382 # else /* SFS_TYPE == SFS_NONE */
3383 # if SFS_TYPE == SFS_USTAT
3384 struct ustat fs;
3385 struct stat statbuf;
3386 # define FSBLOCKSIZE DEV_BSIZE
3387 # define SFS_BAVAIL f_tfree
3388 # else /* SFS_TYPE == SFS_USTAT */
3389 # if defined(ultrix)
3390 struct fs_data fs;
3391 # define SFS_BAVAIL fd_bfreen
3392 # define FSBLOCKSIZE 1024L
3393 # else /* defined(ultrix) */
3394 # if SFS_TYPE == SFS_STATVFS
3395 struct statvfs fs;
3396 # define FSBLOCKSIZE fs.f_frsize
3397 # else /* SFS_TYPE == SFS_STATVFS */
3398 struct statfs fs;
3399 # define FSBLOCKSIZE fs.f_bsize
3400 # endif /* SFS_TYPE == SFS_STATVFS */
3401 # endif /* defined(ultrix) */
3402 # endif /* SFS_TYPE == SFS_USTAT */
3403 # ifndef SFS_BAVAIL
3404 # define SFS_BAVAIL f_bavail
3405 # endif
3406
3407 # if SFS_TYPE == SFS_USTAT
3408 if (stat(dir, &statbuf) == 0 && ustat(statbuf.st_dev, &fs) == 0)
3409 # else /* SFS_TYPE == SFS_USTAT */
3410 # if SFS_TYPE == SFS_4ARGS
3411 if (statfs(dir, &fs, sizeof(fs), 0) == 0)
3412 # else /* SFS_TYPE == SFS_4ARGS */
3413 # if SFS_TYPE == SFS_STATVFS
3414 if (statvfs(dir, &fs) == 0)
3415 # else /* SFS_TYPE == SFS_STATVFS */
3416 # if defined(ultrix)
3417 if (statfs(dir, &fs) > 0)
3418 # else /* defined(ultrix) */
3419 if (statfs(dir, &fs) == 0)
3420 # endif /* defined(ultrix) */
3421 # endif /* SFS_TYPE == SFS_STATVFS */
3422 # endif /* SFS_TYPE == SFS_4ARGS */
3423 # endif /* SFS_TYPE == SFS_USTAT */
3424 {
3425 if (bsize != NULL)
3426 *bsize = FSBLOCKSIZE;
3427 if (fs.SFS_BAVAIL <= 0)
3428 return 0;
3429 else if (fs.SFS_BAVAIL > LONG_MAX)
3430 return (long) LONG_MAX;
3431 else
3432 return (long) fs.SFS_BAVAIL;
3433 }
3434 return -1;
3435 # endif /* SFS_TYPE == SFS_NONE */
3436 }
3437 /*
3438 ** ENOUGHDISKSPACE -- is there enough free space on the queue file systems?
3439 **
3440 ** Parameters:
3441 ** msize -- the size to check against. If zero, we don't yet
3442 ** know how big the message will be, so just check for
3443 ** a "reasonable" amount.
3444 ** e -- envelope, or NULL -- controls logging
3445 **
3446 ** Returns:
3447 ** true if in every queue group there is at least one
3448 ** queue directory whose file system contains enough free space.
3449 ** false otherwise.
3450 **
3451 ** Side Effects:
3452 ** If there is not enough disk space and e != NULL
3453 ** then sm_syslog is called.
3454 */
3455
3456 bool
enoughdiskspace(msize,e)3457 enoughdiskspace(msize, e)
3458 long msize;
3459 ENVELOPE *e;
3460 {
3461 int i;
3462
3463 #if _FFR_TESTS
3464 if (tTd(4, 101))
3465 return false;
3466 #endif
3467 if (MinBlocksFree <= 0 && msize <= 0)
3468 {
3469 if (tTd(4, 80))
3470 sm_dprintf("enoughdiskspace: no threshold\n");
3471 return true;
3472 }
3473
3474 filesys_update();
3475 for (i = 0; i < NumQueue; ++i)
3476 {
3477 if (pickqdir(Queue[i], msize, e) < 0)
3478 return false;
3479 }
3480 return true;
3481 }
3482 /*
3483 ** TRANSIENTERROR -- tell if an error code indicates a transient failure
3484 **
3485 ** This looks at an errno value and tells if this is likely to
3486 ** go away if retried later.
3487 **
3488 ** Parameters:
3489 ** err -- the errno code to classify.
3490 **
3491 ** Returns:
3492 ** true if this is probably transient.
3493 ** false otherwise.
3494 */
3495
3496 bool
transienterror(err)3497 transienterror(err)
3498 int err;
3499 {
3500 switch (err)
3501 {
3502 case EIO: /* I/O error */
3503 case ENXIO: /* Device not configured */
3504 case EAGAIN: /* Resource temporarily unavailable */
3505 case ENOMEM: /* Cannot allocate memory */
3506 case ENODEV: /* Operation not supported by device */
3507 case ENFILE: /* Too many open files in system */
3508 case EMFILE: /* Too many open files */
3509 case ENOSPC: /* No space left on device */
3510 case ETIMEDOUT: /* Connection timed out */
3511 #ifdef ESTALE
3512 case ESTALE: /* Stale NFS file handle */
3513 #endif
3514 #ifdef ENETDOWN
3515 case ENETDOWN: /* Network is down */
3516 #endif
3517 #ifdef ENETUNREACH
3518 case ENETUNREACH: /* Network is unreachable */
3519 #endif
3520 #ifdef ENETRESET
3521 case ENETRESET: /* Network dropped connection on reset */
3522 #endif
3523 #ifdef ECONNABORTED
3524 case ECONNABORTED: /* Software caused connection abort */
3525 #endif
3526 #ifdef ECONNRESET
3527 case ECONNRESET: /* Connection reset by peer */
3528 #endif
3529 #ifdef ENOBUFS
3530 case ENOBUFS: /* No buffer space available */
3531 #endif
3532 #ifdef ESHUTDOWN
3533 case ESHUTDOWN: /* Can't send after socket shutdown */
3534 #endif
3535 #ifdef ECONNREFUSED
3536 case ECONNREFUSED: /* Connection refused */
3537 #endif
3538 #ifdef EHOSTDOWN
3539 case EHOSTDOWN: /* Host is down */
3540 #endif
3541 #ifdef EHOSTUNREACH
3542 case EHOSTUNREACH: /* No route to host */
3543 #endif
3544 #ifdef EDQUOT
3545 case EDQUOT: /* Disc quota exceeded */
3546 #endif
3547 #ifdef EPROCLIM
3548 case EPROCLIM: /* Too many processes */
3549 #endif
3550 #ifdef EUSERS
3551 case EUSERS: /* Too many users */
3552 #endif
3553 #ifdef EDEADLK
3554 case EDEADLK: /* Resource deadlock avoided */
3555 #endif
3556 #ifdef EISCONN
3557 case EISCONN: /* Socket already connected */
3558 #endif
3559 #ifdef EINPROGRESS
3560 case EINPROGRESS: /* Operation now in progress */
3561 #endif
3562 #ifdef EALREADY
3563 case EALREADY: /* Operation already in progress */
3564 #endif
3565 #ifdef EADDRINUSE
3566 case EADDRINUSE: /* Address already in use */
3567 #endif
3568 #ifdef EADDRNOTAVAIL
3569 case EADDRNOTAVAIL: /* Can't assign requested address */
3570 #endif
3571 #ifdef ETXTBSY
3572 case ETXTBSY: /* (Apollo) file locked */
3573 #endif
3574 #if defined(ENOSR) && (!defined(ENOBUFS) || (ENOBUFS != ENOSR))
3575 case ENOSR: /* Out of streams resources */
3576 #endif
3577 #ifdef ENOLCK
3578 case ENOLCK: /* No locks available */
3579 #endif
3580 case E_SM_OPENTIMEOUT: /* PSEUDO: open timed out */
3581 return true;
3582 }
3583
3584 /* nope, must be permanent */
3585 return false;
3586 }
3587 /*
3588 ** LOCKFILE -- lock a file using flock or (shudder) fcntl locking
3589 **
3590 ** Parameters:
3591 ** fd -- the file descriptor of the file.
3592 ** filename -- the file name (for error messages).
3593 ** ext -- the filename extension.
3594 ** type -- type of the lock. Bits can be:
3595 ** LOCK_EX -- exclusive lock.
3596 ** LOCK_NB -- non-blocking.
3597 ** LOCK_UN -- unlock.
3598 **
3599 ** Returns:
3600 ** true if the lock was acquired.
3601 ** false otherwise.
3602 */
3603
3604 bool
lockfile(fd,filename,ext,type)3605 lockfile(fd, filename, ext, type)
3606 int fd;
3607 char *filename;
3608 char *ext;
3609 int type;
3610 {
3611 int i;
3612 int save_errno;
3613 # if !HASFLOCK
3614 int action;
3615 struct flock lfd;
3616
3617 if (ext == NULL)
3618 ext = "";
3619
3620 memset(&lfd, '\0', sizeof(lfd));
3621 if (bitset(LOCK_UN, type))
3622 lfd.l_type = F_UNLCK;
3623 else if (bitset(LOCK_EX, type))
3624 lfd.l_type = F_WRLCK;
3625 else
3626 lfd.l_type = F_RDLCK;
3627
3628 if (bitset(LOCK_NB, type))
3629 action = F_SETLK;
3630 else
3631 action = F_SETLKW;
3632
3633 if (tTd(55, 60))
3634 sm_dprintf("lockfile(%s%s, action=%d, type=%d): ",
3635 filename, ext, action, lfd.l_type);
3636
3637 while ((i = fcntl(fd, action, &lfd)) < 0 && errno == EINTR)
3638 continue;
3639 if (i >= 0)
3640 {
3641 if (tTd(55, 60))
3642 sm_dprintf("SUCCESS\n");
3643 return true;
3644 }
3645 save_errno = errno;
3646
3647 if (tTd(55, 60))
3648 sm_dprintf("(%s) ", sm_errstring(save_errno));
3649
3650 /*
3651 ** On SunOS, if you are testing using -oQ/tmp/mqueue or
3652 ** -oA/tmp/aliases or anything like that, and /tmp is mounted
3653 ** as type "tmp" (that is, served from swap space), the
3654 ** previous fcntl will fail with "Invalid argument" errors.
3655 ** Since this is fairly common during testing, we will assume
3656 ** that this indicates that the lock is successfully grabbed.
3657 */
3658
3659 if (save_errno == EINVAL)
3660 {
3661 if (tTd(55, 60))
3662 sm_dprintf("SUCCESS\n");
3663 return true;
3664 }
3665
3666 if (!bitset(LOCK_NB, type) ||
3667 (save_errno != EACCES && save_errno != EAGAIN))
3668 {
3669 int omode = fcntl(fd, F_GETFL, 0);
3670 uid_t euid = geteuid();
3671
3672 errno = save_errno;
3673 syserr("cannot lockf(%s%s, fd=%d, type=%o, omode=%o, euid=%ld)",
3674 filename, ext, fd, type, omode, (long) euid);
3675 dumpfd(fd, true, true);
3676 }
3677 # else /* !HASFLOCK */
3678 if (ext == NULL)
3679 ext = "";
3680
3681 if (tTd(55, 60))
3682 sm_dprintf("lockfile(%s%s, type=%o): ", filename, ext, type);
3683
3684 while ((i = flock(fd, type)) < 0 && errno == EINTR)
3685 continue;
3686 if (i >= 0)
3687 {
3688 if (tTd(55, 60))
3689 sm_dprintf("SUCCESS\n");
3690 return true;
3691 }
3692 save_errno = errno;
3693
3694 if (tTd(55, 60))
3695 sm_dprintf("(%s) ", sm_errstring(save_errno));
3696
3697 if (!bitset(LOCK_NB, type) || save_errno != EWOULDBLOCK)
3698 {
3699 int omode = fcntl(fd, F_GETFL, 0);
3700 uid_t euid = geteuid();
3701
3702 errno = save_errno;
3703 syserr("cannot flock(%s%s, fd=%d, type=%o, omode=%o, euid=%ld)",
3704 filename, ext, fd, type, omode, (long) euid);
3705 dumpfd(fd, true, true);
3706 }
3707 # endif /* !HASFLOCK */
3708 if (tTd(55, 60))
3709 sm_dprintf("FAIL\n");
3710 errno = save_errno;
3711 return false;
3712 }
3713 /*
3714 ** CHOWNSAFE -- tell if chown is "safe" (executable only by root)
3715 **
3716 ** Unfortunately, given that we can't predict other systems on which
3717 ** a remote mounted (NFS) filesystem will be mounted, the answer is
3718 ** almost always that this is unsafe.
3719 **
3720 ** Note also that many operating systems have non-compliant
3721 ** implementations of the _POSIX_CHOWN_RESTRICTED variable and the
3722 ** fpathconf() routine. According to IEEE 1003.1-1990, if
3723 ** _POSIX_CHOWN_RESTRICTED is defined and not equal to -1, then
3724 ** no non-root process can give away the file. However, vendors
3725 ** don't take NFS into account, so a comfortable value of
3726 ** _POSIX_CHOWN_RESTRICTED tells us nothing.
3727 **
3728 ** Also, some systems (e.g., IRIX 6.2) return 1 from fpathconf()
3729 ** even on files where chown is not restricted. Many systems get
3730 ** this wrong on NFS-based filesystems (that is, they say that chown
3731 ** is restricted [safe] on NFS filesystems where it may not be, since
3732 ** other systems can access the same filesystem and do file giveaway;
3733 ** only the NFS server knows for sure!) Hence, it is important to
3734 ** get the value of SAFENFSPATHCONF correct -- it should be defined
3735 ** _only_ after testing (see test/t_pathconf.c) a system on an unsafe
3736 ** NFS-based filesystem to ensure that you can get meaningful results.
3737 ** If in doubt, assume unsafe!
3738 **
3739 ** You may also need to tweak IS_SAFE_CHOWN -- it should be a
3740 ** condition indicating whether the return from pathconf indicates
3741 ** that chown is safe (typically either > 0 or >= 0 -- there isn't
3742 ** even any agreement about whether a zero return means that a file
3743 ** is or is not safe). It defaults to "> 0".
3744 **
3745 ** If the parent directory is safe (writable only by owner back
3746 ** to the root) then we can relax slightly and trust fpathconf
3747 ** in more circumstances. This is really a crock -- if this is an
3748 ** NFS mounted filesystem then we really know nothing about the
3749 ** underlying implementation. However, most systems pessimize and
3750 ** return an error (EINVAL or EOPNOTSUPP) on NFS filesystems, which
3751 ** we interpret as unsafe, as we should. Thus, this heuristic gets
3752 ** us into a possible problem only on systems that have a broken
3753 ** pathconf implementation and which are also poorly configured
3754 ** (have :include: files in group- or world-writable directories).
3755 **
3756 ** Parameters:
3757 ** fd -- the file descriptor to check.
3758 ** safedir -- set if the parent directory is safe.
3759 **
3760 ** Returns:
3761 ** true -- if the chown(2) operation is "safe" -- that is,
3762 ** only root can chown the file to an arbitrary user.
3763 ** false -- if an arbitrary user can give away a file.
3764 */
3765
3766 #ifndef IS_SAFE_CHOWN
3767 # define IS_SAFE_CHOWN > 0
3768 #endif
3769
3770 bool
chownsafe(fd,safedir)3771 chownsafe(fd, safedir)
3772 int fd;
3773 bool safedir;
3774 {
3775 # if (!defined(_POSIX_CHOWN_RESTRICTED) || _POSIX_CHOWN_RESTRICTED != -1) && \
3776 (defined(_PC_CHOWN_RESTRICTED) || defined(_GNU_TYPES_H))
3777 int rval;
3778
3779 /* give the system administrator a chance to override */
3780 if (bitnset(DBS_ASSUMESAFECHOWN, DontBlameSendmail))
3781 return true;
3782
3783 /*
3784 ** Some systems (e.g., SunOS) seem to have the call and the
3785 ** #define _PC_CHOWN_RESTRICTED, but don't actually implement
3786 ** the call. This heuristic checks for that.
3787 */
3788
3789 errno = 0;
3790 rval = fpathconf(fd, _PC_CHOWN_RESTRICTED);
3791 # if SAFENFSPATHCONF
3792 return errno == 0 && rval IS_SAFE_CHOWN;
3793 # else
3794 return safedir && errno == 0 && rval IS_SAFE_CHOWN;
3795 # endif
3796 # else /* (!defined(_POSIX_CHOWN_RESTRICTED) || _POSIX_CHOWN_RESTRICTED != -1) && ... */
3797 return bitnset(DBS_ASSUMESAFECHOWN, DontBlameSendmail);
3798 # endif /* (!defined(_POSIX_CHOWN_RESTRICTED) || _POSIX_CHOWN_RESTRICTED != -1) && ... */
3799 }
3800 /*
3801 ** RESETLIMITS -- reset system controlled resource limits
3802 **
3803 ** This is to avoid denial-of-service attacks
3804 **
3805 ** Parameters:
3806 ** none
3807 **
3808 ** Returns:
3809 ** none
3810 */
3811
3812 #if HASSETRLIMIT
3813 # ifdef RLIMIT_NEEDS_SYS_TIME_H
3814 # include <sm/time.h>
3815 # endif
3816 # include <sys/resource.h>
3817 #endif /* HASSETRLIMIT */
3818
3819 void
resetlimits()3820 resetlimits()
3821 {
3822 #if HASSETRLIMIT
3823 struct rlimit lim;
3824
3825 lim.rlim_cur = lim.rlim_max = RLIM_INFINITY;
3826 (void) setrlimit(RLIMIT_CPU, &lim);
3827 (void) setrlimit(RLIMIT_FSIZE, &lim);
3828 # ifdef RLIMIT_NOFILE
3829 lim.rlim_cur = lim.rlim_max = FD_SETSIZE;
3830 (void) setrlimit(RLIMIT_NOFILE, &lim);
3831 # endif
3832 #else /* HASSETRLIMIT */
3833 # if HASULIMIT
3834 (void) ulimit(2, 0x3fffff);
3835 (void) ulimit(4, FD_SETSIZE);
3836 # endif
3837 #endif /* HASSETRLIMIT */
3838 errno = 0;
3839 }
3840 /*
3841 ** SETVENDOR -- process vendor code from V configuration line
3842 **
3843 ** Parameters:
3844 ** vendor -- string representation of vendor.
3845 **
3846 ** Returns:
3847 ** true -- if ok.
3848 ** false -- if vendor code could not be processed.
3849 **
3850 ** Side Effects:
3851 ** It is reasonable to set mode flags here to tweak
3852 ** processing in other parts of the code if necessary.
3853 ** For example, if you are a vendor that uses $%y to
3854 ** indicate YP lookups, you could enable that here.
3855 */
3856
3857 bool
setvendor(vendor)3858 setvendor(vendor)
3859 char *vendor;
3860 {
3861 if (sm_strcasecmp(vendor, "Berkeley") == 0)
3862 {
3863 VendorCode = VENDOR_BERKELEY;
3864 return true;
3865 }
3866
3867 /* add vendor extensions here */
3868
3869 #ifdef SUN_EXTENSIONS
3870 if (sm_strcasecmp(vendor, "Sun") == 0)
3871 {
3872 VendorCode = VENDOR_SUN;
3873 return true;
3874 }
3875 #endif /* SUN_EXTENSIONS */
3876 #ifdef DEC
3877 if (sm_strcasecmp(vendor, "Digital") == 0)
3878 {
3879 VendorCode = VENDOR_DEC;
3880 return true;
3881 }
3882 #endif /* DEC */
3883
3884 #if defined(VENDOR_NAME) && defined(VENDOR_CODE)
3885 if (sm_strcasecmp(vendor, VENDOR_NAME) == 0)
3886 {
3887 VendorCode = VENDOR_CODE;
3888 return true;
3889 }
3890 #endif /* defined(VENDOR_NAME) && defined(VENDOR_CODE) */
3891
3892 return false;
3893 }
3894 /*
3895 ** GETVENDOR -- return vendor name based on vendor code
3896 **
3897 ** Parameters:
3898 ** vendorcode -- numeric representation of vendor.
3899 **
3900 ** Returns:
3901 ** string containing vendor name.
3902 */
3903
3904 char *
getvendor(vendorcode)3905 getvendor(vendorcode)
3906 int vendorcode;
3907 {
3908 #if defined(VENDOR_NAME) && defined(VENDOR_CODE)
3909 /*
3910 ** Can't have the same switch case twice so need to
3911 ** handle VENDOR_CODE outside of switch. It might
3912 ** match one of the existing VENDOR_* codes.
3913 */
3914
3915 if (vendorcode == VENDOR_CODE)
3916 return VENDOR_NAME;
3917 #endif /* defined(VENDOR_NAME) && defined(VENDOR_CODE) */
3918
3919 switch (vendorcode)
3920 {
3921 case VENDOR_BERKELEY:
3922 return "Berkeley";
3923
3924 case VENDOR_SUN:
3925 return "Sun";
3926
3927 case VENDOR_HP:
3928 return "HP";
3929
3930 case VENDOR_IBM:
3931 return "IBM";
3932
3933 case VENDOR_SENDMAIL:
3934 return "Sendmail";
3935
3936 default:
3937 return "Unknown";
3938 }
3939 }
3940 /*
3941 ** VENDOR_PRE_DEFAULTS, VENDOR_POST_DEFAULTS -- set vendor-specific defaults
3942 **
3943 ** Vendor_pre_defaults is called before reading the configuration
3944 ** file; vendor_post_defaults is called immediately after.
3945 **
3946 ** Parameters:
3947 ** e -- the global environment to initialize.
3948 **
3949 ** Returns:
3950 ** none.
3951 */
3952
3953 #if SHARE_V1
3954 int DefShareUid; /* default share uid to run as -- unused??? */
3955 #endif
3956
3957 void
vendor_pre_defaults(e)3958 vendor_pre_defaults(e)
3959 ENVELOPE *e;
3960 {
3961 #if SHARE_V1
3962 /* OTHERUID is defined in shares.h, do not be alarmed */
3963 DefShareUid = OTHERUID;
3964 #endif
3965 #if defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES)
3966 sun_pre_defaults(e);
3967 #endif
3968 #ifdef apollo
3969 /*
3970 ** stupid domain/os can't even open
3971 ** /etc/mail/sendmail.cf without this
3972 */
3973
3974 sm_setuserenv("ISP", NULL);
3975 sm_setuserenv("SYSTYPE", NULL);
3976 #endif /* apollo */
3977 }
3978
3979
3980 void
vendor_post_defaults(e)3981 vendor_post_defaults(e)
3982 ENVELOPE *e;
3983 {
3984 #ifdef __QNX__
3985 /* Makes sure the SOCK environment variable remains */
3986 sm_setuserenv("SOCK", NULL);
3987 #endif
3988 #if defined(SUN_EXTENSIONS) && defined(SUN_DEFAULT_VALUES)
3989 sun_post_defaults(e);
3990 #endif
3991 }
3992 /*
3993 ** VENDOR_DAEMON_SETUP -- special vendor setup needed for daemon mode
3994 */
3995
3996 void
vendor_daemon_setup(e)3997 vendor_daemon_setup(e)
3998 ENVELOPE *e;
3999 {
4000 #if HASSETLOGIN
4001 (void) setlogin(RunAsUserName);
4002 #endif
4003 #if SECUREWARE
4004 if (getluid() != -1)
4005 {
4006 usrerr("Daemon cannot have LUID");
4007 finis(false, true, EX_USAGE);
4008 }
4009 #endif /* SECUREWARE */
4010 }
4011 /*
4012 ** VENDOR_SET_UID -- do setup for setting a user id
4013 **
4014 ** This is called when we are still root.
4015 **
4016 ** Parameters:
4017 ** uid -- the uid we are about to become.
4018 **
4019 ** Returns:
4020 ** none.
4021 */
4022
4023 void
vendor_set_uid(uid)4024 vendor_set_uid(uid)
4025 UID_T uid;
4026 {
4027 /*
4028 ** We need to setup the share groups (lnodes)
4029 ** and add auditing information (luid's)
4030 ** before we loose our ``root''ness.
4031 */
4032 #if SHARE_V1
4033 if (setupshares(uid, syserr) != 0)
4034 syserr("Unable to set up shares");
4035 #endif
4036 #if SECUREWARE
4037 (void) setup_secure(uid);
4038 #endif
4039 }
4040 /*
4041 ** VALIDATE_CONNECTION -- check connection for rationality
4042 **
4043 ** If the connection is rejected, this routine should log an
4044 ** appropriate message -- but should never issue any SMTP protocol.
4045 **
4046 ** Parameters:
4047 ** sap -- a pointer to a SOCKADDR naming the peer.
4048 ** hostname -- the name corresponding to sap.
4049 ** e -- the current envelope.
4050 **
4051 ** Returns:
4052 ** error message from rejection.
4053 ** NULL if not rejected.
4054 */
4055
4056 #if TCPWRAPPERS
4057 # include <tcpd.h>
4058
4059 /* tcpwrappers does no logging, but you still have to declare these -- ugh */
4060 int allow_severity = LOG_INFO;
4061 int deny_severity = LOG_NOTICE;
4062 #endif /* TCPWRAPPERS */
4063
4064 char *
validate_connection(sap,hostname,e)4065 validate_connection(sap, hostname, e)
4066 SOCKADDR *sap;
4067 char *hostname;
4068 ENVELOPE *e;
4069 {
4070 #if TCPWRAPPERS
4071 char *host;
4072 char *addr;
4073 extern int hosts_ctl();
4074 #endif /* TCPWRAPPERS */
4075
4076 if (tTd(48, 3))
4077 sm_dprintf("validate_connection(%s, %s)\n",
4078 hostname, anynet_ntoa(sap));
4079
4080 connection_rate_check(sap, e);
4081 if (rscheck("check_relay", hostname, anynet_ntoa(sap), e,
4082 RSF_RMCOMM|RSF_COUNT, 3, NULL, NOQID, NULL, NULL) != EX_OK)
4083 {
4084 static char reject[BUFSIZ*2];
4085 extern char MsgBuf[];
4086
4087 if (tTd(48, 4))
4088 sm_dprintf(" ... validate_connection: BAD (rscheck)\n");
4089
4090 if (strlen(MsgBuf) >= 3)
4091 (void) sm_strlcpy(reject, MsgBuf, sizeof(reject));
4092 else
4093 (void) sm_strlcpy(reject, "Access denied", sizeof(reject));
4094
4095 return reject;
4096 }
4097
4098 #if TCPWRAPPERS
4099 if (hostname[0] == '[' && hostname[strlen(hostname) - 1] == ']')
4100 host = "unknown";
4101 else
4102 host = hostname;
4103 addr = anynet_ntoa(sap);
4104
4105 # if NETINET6
4106 /* TCP/Wrappers don't want the IPv6: protocol label */
4107 if (addr != NULL && sm_strncasecmp(addr, "IPv6:", 5) == 0)
4108 addr += 5;
4109 # endif /* NETINET6 */
4110
4111 if (!hosts_ctl("sendmail", host, addr, STRING_UNKNOWN))
4112 {
4113 if (tTd(48, 4))
4114 sm_dprintf(" ... validate_connection: BAD (tcpwrappers)\n");
4115 if (LogLevel > 3)
4116 sm_syslog(LOG_NOTICE, e->e_id,
4117 "tcpwrappers (%s, %s) rejection",
4118 host, addr);
4119 return "Access denied";
4120 }
4121 #endif /* TCPWRAPPERS */
4122 if (tTd(48, 4))
4123 sm_dprintf(" ... validate_connection: OK\n");
4124 return NULL;
4125 }
4126
4127 /*
4128 ** STRTOL -- convert string to long integer
4129 **
4130 ** For systems that don't have it in the C library.
4131 **
4132 ** This is taken verbatim from the 4.4-Lite C library.
4133 */
4134
4135 #if NEEDSTRTOL
4136
4137 # if defined(LIBC_SCCS) && !defined(lint)
4138 static char sccsid[] = "@(#)strtol.c 8.1 (Berkeley) 6/4/93";
4139 # endif
4140
4141 /*
4142 ** Convert a string to a long integer.
4143 **
4144 ** Ignores `locale' stuff. Assumes that the upper and lower case
4145 ** alphabets and digits are each contiguous.
4146 */
4147
4148 long
strtol(nptr,endptr,base)4149 strtol(nptr, endptr, base)
4150 const char *nptr;
4151 char **endptr;
4152 register int base;
4153 {
4154 register const char *s = nptr;
4155 register unsigned long acc;
4156 register int c;
4157 register unsigned long cutoff;
4158 register int neg = 0, any, cutlim;
4159
4160 /*
4161 ** Skip white space and pick up leading +/- sign if any.
4162 ** If base is 0, allow 0x for hex and 0 for octal, else
4163 ** assume decimal; if base is already 16, allow 0x.
4164 */
4165 do {
4166 c = *s++;
4167 } while (SM_ISSPACE(c));
4168 if (c == '-') {
4169 neg = 1;
4170 c = *s++;
4171 } else if (c == '+')
4172 c = *s++;
4173 if ((base == 0 || base == 16) &&
4174 c == '0' && (*s == 'x' || *s == 'X')) {
4175 c = s[1];
4176 s += 2;
4177 base = 16;
4178 }
4179 if (base == 0)
4180 base = c == '0' ? 8 : 10;
4181
4182 /*
4183 ** Compute the cutoff value between legal numbers and illegal
4184 ** numbers. That is the largest legal value, divided by the
4185 ** base. An input number that is greater than this value, if
4186 ** followed by a legal input character, is too big. One that
4187 ** is equal to this value may be valid or not; the limit
4188 ** between valid and invalid numbers is then based on the last
4189 ** digit. For instance, if the range for longs is
4190 ** [-2147483648..2147483647] and the input base is 10,
4191 ** cutoff will be set to 214748364 and cutlim to either
4192 ** 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
4193 ** a value > 214748364, or equal but the next digit is > 7 (or 8),
4194 ** the number is too big, and we will return a range error.
4195 **
4196 ** Set any if any `digits' consumed; make it negative to indicate
4197 ** overflow.
4198 */
4199 cutoff = neg ? -(unsigned long) LONG_MIN : LONG_MAX;
4200 cutlim = cutoff % (unsigned long) base;
4201 cutoff /= (unsigned long) base;
4202 for (acc = 0, any = 0;; c = *s++) {
4203 if (isascii(c) && isdigit(c))
4204 c -= '0';
4205 else if (isascii(c) && isalpha(c))
4206 c -= isupper(c) ? 'A' - 10 : 'a' - 10;
4207 else
4208 break;
4209 if (c >= base)
4210 break;
4211 if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim)
4212 any = -1;
4213 else {
4214 any = 1;
4215 acc *= base;
4216 acc += c;
4217 }
4218 }
4219 if (any < 0) {
4220 acc = neg ? LONG_MIN : LONG_MAX;
4221 errno = ERANGE;
4222 } else if (neg)
4223 acc = -acc;
4224 if (endptr != NULL)
4225 *endptr = (char *)(any ? s - 1 : nptr);
4226 return acc;
4227 }
4228
4229 #endif /* NEEDSTRTOL */
4230 /*
4231 ** STRSTR -- find first substring in string
4232 **
4233 ** Parameters:
4234 ** big -- the big (full) string.
4235 ** little -- the little (sub) string.
4236 **
4237 ** Returns:
4238 ** A pointer to the first instance of little in big.
4239 ** big if little is the null string.
4240 ** NULL if little is not contained in big.
4241 */
4242
4243 #if NEEDSTRSTR
4244
4245 char *
strstr(big,little)4246 strstr(big, little)
4247 char *big;
4248 char *little;
4249 {
4250 register char *p = big;
4251 int l;
4252
4253 if (*little == '\0')
4254 return big;
4255 l = strlen(little);
4256
4257 while ((p = strchr(p, *little)) != NULL)
4258 {
4259 if (strncmp(p, little, l) == 0)
4260 return p;
4261 p++;
4262 }
4263 return NULL;
4264 }
4265
4266 #endif /* NEEDSTRSTR */
4267 /*
4268 ** SM_GETHOSTBY{NAME,ADDR} -- compatibility routines for gethostbyXXX
4269 **
4270 ** Some operating systems have weird problems with the gethostbyXXX
4271 ** routines. For example, Solaris versions at least through 2.3
4272 ** don't properly deliver a canonical h_name field. This tries to
4273 ** work around these problems.
4274 **
4275 ** Support IPv6 as well as IPv4.
4276 */
4277
4278 #if NETINET6 && NEEDSGETIPNODE
4279
4280 # ifndef AI_DEFAULT
4281 # define AI_DEFAULT 0 /* dummy */
4282 # endif
4283 # ifndef AI_ADDRCONFIG
4284 # define AI_ADDRCONFIG 0 /* dummy */
4285 # endif
4286 # ifndef AI_V4MAPPED
4287 # define AI_V4MAPPED 0 /* dummy */
4288 # endif
4289 # ifndef AI_ALL
4290 # define AI_ALL 0 /* dummy */
4291 # endif
4292
4293 static struct hostent *
sm_getipnodebyname(name,family,flags,err)4294 sm_getipnodebyname(name, family, flags, err)
4295 const char *name;
4296 int family;
4297 int flags;
4298 int *err;
4299 {
4300 struct hostent *h;
4301 # if HAS_GETHOSTBYNAME2
4302
4303 h = gethostbyname2(name, family);
4304 if (h == NULL)
4305 *err = h_errno;
4306 return h;
4307
4308 # else /* HAS_GETHOSTBYNAME2 */
4309 # ifdef RES_USE_INET6
4310 bool resv6 = true;
4311
4312 if (family == AF_INET6)
4313 {
4314 /* From RFC2133, section 6.1 */
4315 resv6 = bitset(RES_USE_INET6, _res.options);
4316 _res.options |= RES_USE_INET6;
4317 }
4318 # endif /* RES_USE_INET6 */
4319 SM_SET_H_ERRNO(0);
4320 h = gethostbyname(name);
4321 # ifdef RES_USE_INET6
4322 if (!resv6)
4323 _res.options &= ~RES_USE_INET6;
4324 # endif
4325
4326 /* the function is supposed to return only the requested family */
4327 if (h != NULL && h->h_addrtype != family)
4328 {
4329 # if NETINET6
4330 freehostent(h);
4331 # endif
4332 h = NULL;
4333 *err = NO_DATA;
4334 }
4335 else
4336 *err = h_errno;
4337 return h;
4338 # endif /* HAS_GETHOSTBYNAME2 */
4339 }
4340
4341 static struct hostent *
sm_getipnodebyaddr(addr,len,family,err)4342 sm_getipnodebyaddr(addr, len, family, err)
4343 const void *addr;
4344 size_t len;
4345 int family;
4346 int *err;
4347 {
4348 struct hostent *h;
4349
4350 SM_SET_H_ERRNO(0);
4351 h = gethostbyaddr(addr, len, family);
4352 *err = h_errno;
4353 return h;
4354 }
4355
4356 void
freehostent(h)4357 freehostent(h)
4358 struct hostent *h;
4359 {
4360 /*
4361 ** Stub routine -- if they don't have getipnodeby*(),
4362 ** they probably don't have the free routine either.
4363 */
4364
4365 return;
4366 }
4367 #endif /* NETINET6 && NEEDSGETIPNODE */
4368
4369 struct hostent *
sm_gethostbyname(name,family)4370 sm_gethostbyname(name, family)
4371 char *name;
4372 int family;
4373 {
4374 int save_errno;
4375 struct hostent *h = NULL;
4376 #if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4))
4377 # if SOLARIS == 20300 || SOLARIS == 203
4378 static struct hostent hp;
4379 static char buf[1000];
4380 extern struct hostent *_switch_gethostbyname_r();
4381
4382 if (tTd(61, 10))
4383 sm_dprintf("_switch_gethostbyname_r(%s)... ", name);
4384 h = _switch_gethostbyname_r(name, &hp, buf, sizeof(buf), &h_errno);
4385 save_errno = errno;
4386 # else /* SOLARIS == 20300 || SOLARIS == 203 */
4387 extern struct hostent *__switch_gethostbyname();
4388
4389 if (tTd(61, 10))
4390 sm_dprintf("__switch_gethostbyname(%s)... ", name);
4391 h = __switch_gethostbyname(name);
4392 save_errno = errno;
4393 # endif /* SOLARIS == 20300 || SOLARIS == 203 */
4394 #else /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */
4395 int nmaps;
4396 # if NETINET6
4397 # ifndef SM_IPNODEBYNAME_FLAGS
4398 /* For IPv4-mapped addresses, use: AI_DEFAULT|AI_ALL */
4399 # define SM_IPNODEBYNAME_FLAGS AI_ADDRCONFIG
4400 # endif
4401
4402 int flags = SM_IPNODEBYNAME_FLAGS;
4403 int err;
4404 # endif /* NETINET6 */
4405 char *maptype[MAXMAPSTACK];
4406 short mapreturn[MAXMAPACTIONS];
4407 char hbuf[MAXNAME];
4408
4409 if (tTd(61, 10))
4410 sm_dprintf("sm_gethostbyname(%s, %d)... ", name, family);
4411
4412 # if NETINET6
4413 # if ADDRCONFIG_IS_BROKEN
4414 flags &= ~AI_ADDRCONFIG;
4415 # endif
4416 h = sm_getipnodebyname(name, family, flags, &err);
4417 SM_SET_H_ERRNO(err);
4418 # else /* NETINET6 */
4419 h = gethostbyname(name);
4420 # endif /* NETINET6 */
4421
4422 save_errno = errno;
4423 if (h == NULL)
4424 {
4425 if (tTd(61, 10))
4426 sm_dprintf("failure\n");
4427
4428 nmaps = switch_map_find("hosts", maptype, mapreturn);
4429 while (--nmaps >= 0)
4430 {
4431 if (strcmp(maptype[nmaps], "nis") == 0 ||
4432 strcmp(maptype[nmaps], "files") == 0)
4433 break;
4434 }
4435
4436 if (nmaps >= 0)
4437 {
4438 /* try short name */
4439 if (strlen(name) > sizeof(hbuf) - 1)
4440 {
4441 errno = save_errno;
4442 return NULL;
4443 }
4444 (void) sm_strlcpy(hbuf, name, sizeof(hbuf));
4445 (void) shorten_hostname(hbuf);
4446
4447 /* if it hasn't been shortened, there's no point */
4448 if (strcmp(hbuf, name) != 0)
4449 {
4450 if (tTd(61, 10))
4451 sm_dprintf("sm_gethostbyname(%s, %d)... ",
4452 hbuf, family);
4453
4454 # if NETINET6
4455 h = sm_getipnodebyname(hbuf, family, flags, &err);
4456 SM_SET_H_ERRNO(err);
4457 save_errno = errno;
4458 # else /* NETINET6 */
4459 h = gethostbyname(hbuf);
4460 save_errno = errno;
4461 # endif /* NETINET6 */
4462 }
4463 }
4464 }
4465 #endif /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */
4466
4467 /* the function is supposed to return only the requested family */
4468 if (h != NULL && h->h_addrtype != family)
4469 {
4470 # if NETINET6
4471 freehostent(h);
4472 # endif
4473 h = NULL;
4474 SM_SET_H_ERRNO(NO_DATA);
4475 }
4476
4477 if (tTd(61, 10))
4478 {
4479 if (h == NULL)
4480 sm_dprintf("failure\n");
4481 else
4482 {
4483 sm_dprintf("%s\n", h->h_name);
4484 if (tTd(61, 11))
4485 {
4486 struct in_addr ia;
4487 size_t i;
4488 #if NETINET6
4489 struct in6_addr ia6;
4490 char buf6[INET6_ADDRSTRLEN];
4491 #endif
4492
4493 if (h->h_aliases != NULL)
4494 for (i = 0; h->h_aliases[i] != NULL;
4495 i++)
4496 sm_dprintf("\talias: %s\n",
4497 h->h_aliases[i]);
4498 for (i = 0; h->h_addr_list[i] != NULL; i++)
4499 {
4500 char *addr;
4501
4502 addr = NULL;
4503 #if NETINET6
4504 if (h->h_addrtype == AF_INET6)
4505 {
4506 memmove(&ia6, h->h_addr_list[i],
4507 IN6ADDRSZ);
4508 addr = anynet_ntop(&ia6,
4509 buf6, sizeof(buf6));
4510 }
4511 else
4512 #endif /* NETINET6 */
4513 /* "else" in #if code above */
4514 {
4515 memmove(&ia, h->h_addr_list[i],
4516 INADDRSZ);
4517 addr = (char *) inet_ntoa(ia);
4518 }
4519 if (addr != NULL)
4520 sm_dprintf("\taddr: %s\n", addr);
4521 }
4522 }
4523 }
4524 }
4525 errno = save_errno;
4526 return h;
4527 }
4528
4529 struct hostent *
sm_gethostbyaddr(addr,len,type)4530 sm_gethostbyaddr(addr, len, type)
4531 char *addr;
4532 int len;
4533 int type;
4534 {
4535 struct hostent *hp;
4536
4537 #if NETINET6
4538 if (type == AF_INET6 &&
4539 IN6_IS_ADDR_UNSPECIFIED((struct in6_addr *) addr))
4540 {
4541 /* Avoid reverse lookup for IPv6 unspecified address */
4542 SM_SET_H_ERRNO(HOST_NOT_FOUND);
4543 return NULL;
4544 }
4545 #endif /* NETINET6 */
4546
4547 #if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204)
4548 # if SOLARIS == 20300 || SOLARIS == 203
4549 {
4550 static struct hostent he;
4551 static char buf[1000];
4552 extern struct hostent *_switch_gethostbyaddr_r();
4553
4554 hp = _switch_gethostbyaddr_r(addr, len, type, &he,
4555 buf, sizeof(buf), &h_errno);
4556 }
4557 # else /* SOLARIS == 20300 || SOLARIS == 203 */
4558 {
4559 extern struct hostent *__switch_gethostbyaddr();
4560
4561 hp = __switch_gethostbyaddr(addr, len, type);
4562 }
4563 # endif /* SOLARIS == 20300 || SOLARIS == 203 */
4564 #else /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) */
4565 # if NETINET6
4566 {
4567 int err;
4568
4569 hp = sm_getipnodebyaddr(addr, len, type, &err);
4570 SM_SET_H_ERRNO(err);
4571 }
4572 # else /* NETINET6 */
4573 hp = gethostbyaddr(addr, len, type);
4574 # endif /* NETINET6 */
4575 #endif /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) */
4576 return hp;
4577 }
4578 /*
4579 ** SM_GETPW{NAM,UID} -- wrapper for getpwnam and getpwuid
4580 */
4581
4582 struct passwd *
sm_getpwnam(user)4583 sm_getpwnam(user)
4584 char *user;
4585 {
4586 #ifdef _AIX4
4587 extern struct passwd *_getpwnam_shadow(const char *, const int);
4588
4589 return _getpwnam_shadow(user, 0);
4590 #else /* _AIX4 */
4591 return getpwnam(user);
4592 #endif /* _AIX4 */
4593 }
4594
4595 struct passwd *
sm_getpwuid(uid)4596 sm_getpwuid(uid)
4597 UID_T uid;
4598 {
4599 #if defined(_AIX4) && 0
4600 extern struct passwd *_getpwuid_shadow(const int, const int);
4601
4602 return _getpwuid_shadow(uid,0);
4603 #else /* defined(_AIX4) && 0 */
4604 return getpwuid(uid);
4605 #endif /* defined(_AIX4) && 0 */
4606 }
4607 /*
4608 ** SECUREWARE_SETUP_SECURE -- Convex SecureWare setup
4609 **
4610 ** Set up the trusted computing environment for C2 level security
4611 ** under SecureWare.
4612 **
4613 ** Parameters:
4614 ** uid -- uid of the user to initialize in the TCB
4615 **
4616 ** Returns:
4617 ** none
4618 **
4619 ** Side Effects:
4620 ** Initialized the user in the trusted computing base
4621 */
4622
4623 #if SECUREWARE
4624
4625 # include <sys/security.h>
4626 # include <prot.h>
4627
4628 void
secureware_setup_secure(uid)4629 secureware_setup_secure(uid)
4630 UID_T uid;
4631 {
4632 int rc;
4633
4634 if (getluid() != -1)
4635 return;
4636
4637 if ((rc = set_secure_info(uid)) != SSI_GOOD_RETURN)
4638 {
4639 switch (rc)
4640 {
4641 case SSI_NO_PRPW_ENTRY:
4642 syserr("No protected passwd entry, uid = %d",
4643 (int) uid);
4644 break;
4645
4646 case SSI_LOCKED:
4647 syserr("Account has been disabled, uid = %d",
4648 (int) uid);
4649 break;
4650
4651 case SSI_RETIRED:
4652 syserr("Account has been retired, uid = %d",
4653 (int) uid);
4654 break;
4655
4656 case SSI_BAD_SET_LUID:
4657 syserr("Could not set LUID, uid = %d", (int) uid);
4658 break;
4659
4660 case SSI_BAD_SET_PRIVS:
4661 syserr("Could not set kernel privs, uid = %d",
4662 (int) uid);
4663
4664 default:
4665 syserr("Unknown return code (%d) from set_secure_info(%d)",
4666 rc, (int) uid);
4667 break;
4668 }
4669 finis(false, true, EX_NOPERM);
4670 }
4671 }
4672 #endif /* SECUREWARE */
4673 /*
4674 ** ADD_HOSTNAMES -- Add a hostname to class 'w' based on IP address
4675 **
4676 ** Add hostnames to class 'w' based on the IP address read from
4677 ** the network interface.
4678 **
4679 ** Parameters:
4680 ** sa -- a pointer to a SOCKADDR containing the address
4681 **
4682 ** Returns:
4683 ** 0 if successful, -1 if host lookup fails.
4684 */
4685
4686 static int
add_hostnames(sa)4687 add_hostnames(sa)
4688 SOCKADDR *sa;
4689 {
4690 struct hostent *hp;
4691 char **ha;
4692 char hnb[MAXHOSTNAMELEN];
4693
4694 /* lookup name with IP address */
4695 switch (sa->sa.sa_family)
4696 {
4697 #if NETINET
4698 case AF_INET:
4699 hp = sm_gethostbyaddr((char *) &sa->sin.sin_addr,
4700 sizeof(sa->sin.sin_addr),
4701 sa->sa.sa_family);
4702 break;
4703 #endif /* NETINET */
4704
4705 #if NETINET6
4706 case AF_INET6:
4707 hp = sm_gethostbyaddr((char *) &sa->sin6.sin6_addr,
4708 sizeof(sa->sin6.sin6_addr),
4709 sa->sa.sa_family);
4710 break;
4711 #endif /* NETINET6 */
4712
4713 default:
4714 /* Give warning about unsupported family */
4715 if (LogLevel > 3)
4716 sm_syslog(LOG_WARNING, NOQID,
4717 "Unsupported address family %d: %.100s",
4718 sa->sa.sa_family, anynet_ntoa(sa));
4719 return -1;
4720 }
4721
4722 if (hp == NULL)
4723 {
4724 int save_errno = errno;
4725
4726 if (LogLevel > 3 &&
4727 #if NETINET && defined(IN_LINKLOCAL)
4728 !(sa->sa.sa_family == AF_INET &&
4729 IN_LINKLOCAL(ntohl(sa->sin.sin_addr.s_addr))) &&
4730 #endif
4731 #if NETINET6
4732 !(sa->sa.sa_family == AF_INET6 &&
4733 IN6_IS_ADDR_LINKLOCAL(&sa->sin6.sin6_addr)) &&
4734 #endif
4735 true)
4736 sm_syslog(LOG_WARNING, NOQID,
4737 "gethostbyaddr(%.100s) failed: %d",
4738 anynet_ntoa(sa),
4739 #if NAMED_BIND
4740 h_errno
4741 #else
4742 -1
4743 #endif
4744 );
4745 errno = save_errno;
4746 return -1;
4747 }
4748
4749 /* save its cname */
4750 if (!wordinclass((char *) hp->h_name, 'w'))
4751 {
4752 setclass('w', (char *) hp->h_name);
4753 if (tTd(0, 4))
4754 sm_dprintf("\ta.k.a.: %s\n", hp->h_name);
4755
4756 if (sm_snprintf(hnb, sizeof(hnb), "[%s]", hp->h_name) <
4757 sizeof(hnb)
4758 && !wordinclass((char *) hnb, 'w'))
4759 setclass('w', hnb);
4760 }
4761 else
4762 {
4763 if (tTd(0, 43))
4764 sm_dprintf("\ta.k.a.: %s (already in $=w)\n", hp->h_name);
4765 }
4766
4767 /* save all it aliases name */
4768 for (ha = hp->h_aliases; ha != NULL && *ha != NULL; ha++)
4769 {
4770 if (!wordinclass(*ha, 'w'))
4771 {
4772 setclass('w', *ha);
4773 if (tTd(0, 4))
4774 sm_dprintf("\ta.k.a.: %s\n", *ha);
4775 if (sm_snprintf(hnb, sizeof(hnb),
4776 "[%s]", *ha) < sizeof(hnb) &&
4777 !wordinclass((char *) hnb, 'w'))
4778 setclass('w', hnb);
4779 }
4780 else
4781 {
4782 if (tTd(0, 43))
4783 sm_dprintf("\ta.k.a.: %s (already in $=w)\n",
4784 *ha);
4785 }
4786 }
4787 #if NETINET6
4788 freehostent(hp);
4789 #endif
4790 return 0;
4791 }
4792 /*
4793 ** LOAD_IF_NAMES -- load interface-specific names into $=w
4794 **
4795 ** Parameters:
4796 ** none.
4797 **
4798 ** Returns:
4799 ** none.
4800 **
4801 ** Side Effects:
4802 ** Loads $=w with the names of all the interfaces.
4803 */
4804
4805 #if !NETINET
4806 # define SIOCGIFCONF_IS_BROKEN 1 /* XXX */
4807 #endif
4808
4809 #if defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN
4810 struct rtentry;
4811 struct mbuf;
4812 # ifndef SUNOS403
4813 # include <sm/time.h>
4814 # endif
4815 # if (_AIX4 >= 40300) && !defined(_NET_IF_H)
4816 # undef __P
4817 # endif
4818 # include <net/if.h>
4819 #endif /* defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN */
4820
4821 void
load_if_names()4822 load_if_names()
4823 {
4824 # if NETINET6 && defined(SIOCGLIFCONF)
4825 # ifdef __hpux
4826
4827 /*
4828 ** Unfortunately, HP has changed all of the structures,
4829 ** making life difficult for implementors.
4830 */
4831
4832 # define lifconf if_laddrconf
4833 # define lifc_len iflc_len
4834 # define lifc_buf iflc_buf
4835 # define lifreq if_laddrreq
4836 # define lifr_addr iflr_addr
4837 # define lifr_name iflr_name
4838 # define lifr_flags iflr_flags
4839 # define ss_family sa_family
4840 # undef SIOCGLIFNUM
4841 # endif /* __hpux */
4842
4843 int s;
4844 int i;
4845 size_t len;
4846 int numifs;
4847 char *buf;
4848 struct lifconf lifc;
4849 # ifdef SIOCGLIFNUM
4850 struct lifnum lifn;
4851 # endif
4852
4853 s = socket(InetMode, SOCK_DGRAM, 0);
4854 if (s == -1)
4855 return;
4856
4857 /* get the list of known IP address from the kernel */
4858 # ifdef __hpux
4859 i = ioctl(s, SIOCGIFNUM, (char *) &numifs);
4860 # endif
4861 # ifdef SIOCGLIFNUM
4862 lifn.lifn_family = AF_UNSPEC;
4863 lifn.lifn_flags = 0;
4864 i = ioctl(s, SIOCGLIFNUM, (char *)&lifn);
4865 numifs = lifn.lifn_count;
4866 # endif /* SIOCGLIFNUM */
4867
4868 # if defined(__hpux) || defined(SIOCGLIFNUM)
4869 if (i < 0)
4870 {
4871 /* can't get number of interfaces -- fall back */
4872 if (tTd(0, 4))
4873 sm_dprintf("SIOCGLIFNUM failed: %s\n",
4874 sm_errstring(errno));
4875 numifs = -1;
4876 }
4877 else if (tTd(0, 42))
4878 sm_dprintf("system has %d interfaces\n", numifs);
4879 if (numifs < 0)
4880 # endif /* defined(__hpux) || defined(SIOCGLIFNUM) */
4881 numifs = MAXINTERFACES;
4882
4883 if (numifs <= 0)
4884 {
4885 (void) close(s);
4886 return;
4887 }
4888
4889 len = lifc.lifc_len = numifs * sizeof(struct lifreq);
4890 buf = lifc.lifc_buf = xalloc(lifc.lifc_len);
4891 # ifndef __hpux
4892 lifc.lifc_family = AF_UNSPEC;
4893 lifc.lifc_flags = 0;
4894 # endif
4895 if (ioctl(s, SIOCGLIFCONF, (char *)&lifc) < 0)
4896 {
4897 if (tTd(0, 4))
4898 sm_dprintf("SIOCGLIFCONF failed: %s\n",
4899 sm_errstring(errno));
4900 (void) close(s);
4901 sm_free(buf);
4902 return;
4903 }
4904
4905 /* scan the list of IP address */
4906 if (tTd(0, 40))
4907 sm_dprintf("scanning for interface specific names, lifc_len=%ld\n",
4908 (long) len);
4909
4910 for (i = 0; i < len && i >= 0; )
4911 {
4912 int flags;
4913 struct lifreq *ifr = (struct lifreq *)&buf[i];
4914 SOCKADDR *sa = (SOCKADDR *) &ifr->lifr_addr;
4915 int af = ifr->lifr_addr.ss_family;
4916 char *addr;
4917 char *name;
4918 struct in6_addr ia6;
4919 struct in_addr ia;
4920 # ifdef SIOCGLIFFLAGS
4921 struct lifreq ifrf;
4922 # endif
4923 char ip_addr[256];
4924 char buf6[INET6_ADDRSTRLEN];
4925
4926 /*
4927 ** We must close and recreate the socket each time
4928 ** since we don't know what type of socket it is now
4929 ** (each status function may change it).
4930 */
4931
4932 (void) close(s);
4933
4934 s = socket(af, SOCK_DGRAM, 0);
4935 if (s == -1)
4936 {
4937 sm_free(buf); /* XXX */
4938 return;
4939 }
4940
4941 /*
4942 ** If we don't have a complete ifr structure,
4943 ** don't try to use it.
4944 */
4945
4946 if ((len - i) < sizeof(*ifr))
4947 break;
4948
4949 # ifdef BSD4_4_SOCKADDR
4950 if (sa->sa.sa_len > sizeof(ifr->lifr_addr))
4951 i += sizeof(ifr->lifr_name) + sa->sa.sa_len;
4952 else
4953 # endif /* BSD4_4_SOCKADDR */
4954 # ifdef DEC
4955 /* fix for IPv6 size differences */
4956 i += sizeof(ifr->ifr_name) +
4957 max(sizeof(ifr->ifr_addr), ifr->ifr_addr.sa_len);
4958 # else /* DEC */
4959 i += sizeof(*ifr);
4960 # endif /* DEC */
4961
4962 if (tTd(0, 20))
4963 sm_dprintf("%s\n", anynet_ntoa(sa));
4964
4965 if (af != AF_INET && af != AF_INET6)
4966 continue;
4967
4968 # ifdef SIOCGLIFFLAGS
4969 memset(&ifrf, '\0', sizeof(struct lifreq));
4970 (void) sm_strlcpy(ifrf.lifr_name, ifr->lifr_name,
4971 sizeof(ifrf.lifr_name));
4972 if (ioctl(s, SIOCGLIFFLAGS, (char *) &ifrf) < 0)
4973 {
4974 if (tTd(0, 4))
4975 sm_dprintf("SIOCGLIFFLAGS failed: %s\n",
4976 sm_errstring(errno));
4977 continue;
4978 }
4979
4980 name = ifr->lifr_name;
4981 flags = ifrf.lifr_flags;
4982
4983 if (tTd(0, 41))
4984 sm_dprintf("\tflags: %lx\n", (unsigned long) flags);
4985
4986 if (!bitset(IFF_UP, flags))
4987 continue;
4988 # endif /* SIOCGLIFFLAGS */
4989
4990 ip_addr[0] = '\0';
4991
4992 /* extract IP address from the list*/
4993 switch (af)
4994 {
4995 case AF_INET6:
4996 SETV6LOOPBACKADDRFOUND(*sa);
4997 # ifdef __KAME__
4998 /* convert into proper scoped address */
4999 if ((IN6_IS_ADDR_LINKLOCAL(&sa->sin6.sin6_addr) ||
5000 IN6_IS_ADDR_SITELOCAL(&sa->sin6.sin6_addr)) &&
5001 sa->sin6.sin6_scope_id == 0)
5002 {
5003 struct in6_addr *ia6p;
5004
5005 ia6p = &sa->sin6.sin6_addr;
5006 sa->sin6.sin6_scope_id = ntohs(ia6p->s6_addr[3] |
5007 ((unsigned int)ia6p->s6_addr[2] << 8));
5008 ia6p->s6_addr[2] = ia6p->s6_addr[3] = 0;
5009 }
5010 # endif /* __KAME__ */
5011 ia6 = sa->sin6.sin6_addr;
5012 if (IN6_IS_ADDR_UNSPECIFIED(&ia6))
5013 {
5014 addr = anynet_ntop(&ia6, buf6, sizeof(buf6));
5015 message("WARNING: interface %s is UP with %s address",
5016 name, addr == NULL ? "(NULL)" : addr);
5017 continue;
5018 }
5019
5020 /* save IP address in text from */
5021 addr = anynet_ntop(&ia6, buf6, sizeof(buf6));
5022 if (addr != NULL)
5023 (void) sm_snprintf(ip_addr, sizeof(ip_addr),
5024 "[%.*s]",
5025 (int) sizeof(ip_addr) - 3,
5026 addr);
5027 break;
5028
5029 case AF_INET:
5030 ia = sa->sin.sin_addr;
5031 if (ia.s_addr == INADDR_ANY ||
5032 ia.s_addr == INADDR_NONE)
5033 {
5034 message("WARNING: interface %s is UP with %s address",
5035 name, inet_ntoa(ia));
5036 continue;
5037 }
5038
5039 /* save IP address in text from */
5040 (void) sm_snprintf(ip_addr, sizeof(ip_addr), "[%.*s]",
5041 (int) sizeof(ip_addr) - 3, inet_ntoa(ia));
5042 break;
5043 }
5044
5045 if (*ip_addr == '\0')
5046 continue;
5047
5048 if (!wordinclass(ip_addr, 'w'))
5049 {
5050 setclass('w', ip_addr);
5051 if (tTd(0, 4))
5052 sm_dprintf("\ta.k.a.: %s\n", ip_addr);
5053 }
5054
5055 # ifdef SIOCGLIFFLAGS
5056 /* skip "loopback" interface "lo" */
5057 if (DontProbeInterfaces == DPI_SKIPLOOPBACK &&
5058 bitset(IFF_LOOPBACK, flags))
5059 continue;
5060 # endif /* SIOCGLIFFLAGS */
5061 (void) add_hostnames(sa);
5062 }
5063 sm_free(buf); /* XXX */
5064 (void) close(s);
5065 # else /* NETINET6 && defined(SIOCGLIFCONF) */
5066 # if defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN
5067 int s;
5068 int i;
5069 struct ifconf ifc;
5070 int numifs;
5071
5072 s = socket(AF_INET, SOCK_DGRAM, 0);
5073 if (s == -1)
5074 return;
5075
5076 /* get the list of known IP address from the kernel */
5077 # if defined(SIOCGIFNUM) && !SIOCGIFNUM_IS_BROKEN
5078 if (ioctl(s, SIOCGIFNUM, (char *) &numifs) < 0)
5079 {
5080 /* can't get number of interfaces -- fall back */
5081 if (tTd(0, 4))
5082 sm_dprintf("SIOCGIFNUM failed: %s\n",
5083 sm_errstring(errno));
5084 numifs = -1;
5085 }
5086 else if (tTd(0, 42))
5087 sm_dprintf("system has %d interfaces\n", numifs);
5088 if (numifs < 0)
5089 # endif /* defined(SIOCGIFNUM) && !SIOCGIFNUM_IS_BROKEN */
5090 numifs = MAXINTERFACES;
5091
5092 if (numifs <= 0)
5093 {
5094 (void) close(s);
5095 return;
5096 }
5097 ifc.ifc_len = numifs * sizeof(struct ifreq);
5098 ifc.ifc_buf = xalloc(ifc.ifc_len);
5099 if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0)
5100 {
5101 if (tTd(0, 4))
5102 sm_dprintf("SIOCGIFCONF failed: %s\n",
5103 sm_errstring(errno));
5104 (void) close(s);
5105 return;
5106 }
5107
5108 /* scan the list of IP address */
5109 if (tTd(0, 40))
5110 sm_dprintf("scanning for interface specific names, ifc_len=%d\n",
5111 ifc.ifc_len);
5112
5113 for (i = 0; i < ifc.ifc_len && i >= 0; )
5114 {
5115 int af;
5116 struct ifreq *ifr = (struct ifreq *) &ifc.ifc_buf[i];
5117 SOCKADDR *sa = (SOCKADDR *) &ifr->ifr_addr;
5118 # if NETINET6
5119 char *addr;
5120 struct in6_addr ia6;
5121 # endif
5122 struct in_addr ia;
5123 # ifdef SIOCGIFFLAGS
5124 struct ifreq ifrf;
5125 # endif
5126 char ip_addr[256];
5127 # if NETINET6
5128 char buf6[INET6_ADDRSTRLEN];
5129 # endif
5130
5131 /*
5132 ** If we don't have a complete ifr structure,
5133 ** don't try to use it.
5134 */
5135
5136 if ((ifc.ifc_len - i) < sizeof(*ifr))
5137 break;
5138
5139 # ifdef BSD4_4_SOCKADDR
5140 if (sa->sa.sa_len > sizeof(ifr->ifr_addr))
5141 i += sizeof(ifr->ifr_name) + sa->sa.sa_len;
5142 else
5143 # endif /* BSD4_4_SOCKADDR */
5144 i += sizeof(*ifr);
5145
5146 if (tTd(0, 20))
5147 sm_dprintf("%s\n", anynet_ntoa(sa));
5148
5149 af = ifr->ifr_addr.sa_family;
5150 if (af != AF_INET
5151 # if NETINET6
5152 && af != AF_INET6
5153 # endif
5154 )
5155 continue;
5156
5157 # ifdef SIOCGIFFLAGS
5158 memset(&ifrf, '\0', sizeof(struct ifreq));
5159 (void) sm_strlcpy(ifrf.ifr_name, ifr->ifr_name,
5160 sizeof(ifrf.ifr_name));
5161 (void) ioctl(s, SIOCGIFFLAGS, (char *) &ifrf);
5162 if (tTd(0, 41))
5163 sm_dprintf("\tflags: %lx\n",
5164 (unsigned long) ifrf.ifr_flags);
5165 # define IFRFREF ifrf
5166 # else /* SIOCGIFFLAGS */
5167 # define IFRFREF (*ifr)
5168 # endif /* SIOCGIFFLAGS */
5169
5170 if (!bitset(IFF_UP, IFRFREF.ifr_flags))
5171 continue;
5172
5173 ip_addr[0] = '\0';
5174
5175 /* extract IP address from the list*/
5176 switch (af)
5177 {
5178 case AF_INET:
5179 ia = sa->sin.sin_addr;
5180 if (ia.s_addr == INADDR_ANY ||
5181 ia.s_addr == INADDR_NONE)
5182 {
5183 message("WARNING: interface %s is UP with %s address",
5184 ifr->ifr_name, inet_ntoa(ia));
5185 continue;
5186 }
5187
5188 /* save IP address in text from */
5189 (void) sm_snprintf(ip_addr, sizeof(ip_addr), "[%.*s]",
5190 (int) sizeof(ip_addr) - 3,
5191 inet_ntoa(ia));
5192 break;
5193
5194 # if NETINET6
5195 case AF_INET6:
5196 SETV6LOOPBACKADDRFOUND(*sa);
5197 # ifdef __KAME__
5198 /* convert into proper scoped address */
5199 if ((IN6_IS_ADDR_LINKLOCAL(&sa->sin6.sin6_addr) ||
5200 IN6_IS_ADDR_SITELOCAL(&sa->sin6.sin6_addr)) &&
5201 sa->sin6.sin6_scope_id == 0)
5202 {
5203 struct in6_addr *ia6p;
5204
5205 ia6p = &sa->sin6.sin6_addr;
5206 sa->sin6.sin6_scope_id = ntohs(ia6p->s6_addr[3] |
5207 ((unsigned int)ia6p->s6_addr[2] << 8));
5208 ia6p->s6_addr[2] = ia6p->s6_addr[3] = 0;
5209 }
5210 # endif /* __KAME__ */
5211 ia6 = sa->sin6.sin6_addr;
5212 if (IN6_IS_ADDR_UNSPECIFIED(&ia6))
5213 {
5214 addr = anynet_ntop(&ia6, buf6, sizeof(buf6));
5215 message("WARNING: interface %s is UP with %s address",
5216 ifr->ifr_name,
5217 addr == NULL ? "(NULL)" : addr);
5218 continue;
5219 }
5220
5221 /* save IP address in text from */
5222 addr = anynet_ntop(&ia6, buf6, sizeof(buf6));
5223 if (addr != NULL)
5224 (void) sm_snprintf(ip_addr, sizeof(ip_addr),
5225 "[%.*s]",
5226 (int) sizeof(ip_addr) - 3,
5227 addr);
5228 break;
5229
5230 # endif /* NETINET6 */
5231 }
5232
5233 if (ip_addr[0] == '\0')
5234 continue;
5235
5236 if (!wordinclass(ip_addr, 'w'))
5237 {
5238 setclass('w', ip_addr);
5239 if (tTd(0, 4))
5240 sm_dprintf("\ta.k.a.: %s\n", ip_addr);
5241 }
5242
5243 /* skip "loopback" interface "lo" */
5244 if (DontProbeInterfaces == DPI_SKIPLOOPBACK &&
5245 bitset(IFF_LOOPBACK, IFRFREF.ifr_flags))
5246 continue;
5247
5248 (void) add_hostnames(sa);
5249 }
5250 sm_free(ifc.ifc_buf); /* XXX */
5251 (void) close(s);
5252 # undef IFRFREF
5253 # endif /* defined(SIOCGIFCONF) && !SIOCGIFCONF_IS_BROKEN */
5254 # endif /* NETINET6 && defined(SIOCGLIFCONF) */
5255 }
5256 /*
5257 ** ISLOOPBACK -- is socket address in the loopback net?
5258 **
5259 ** Parameters:
5260 ** sa -- socket address.
5261 **
5262 ** Returns:
5263 ** true -- is socket address in the loopback net?
5264 ** false -- otherwise
5265 **
5266 */
5267
5268 bool
isloopback(sa)5269 isloopback(sa)
5270 SOCKADDR sa;
5271 {
5272 /* XXX how to correctly extract IN_LOOPBACKNET part? */
5273 #define SM_IS_IPV4_LOOP(a) (((ntohl(a) & IN_CLASSA_NET) \
5274 >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET)
5275 #if NETINET6
5276 if (sa.sa.sa_family == AF_INET6 &&
5277 IN6_IS_ADDR_V4MAPPED(&sa.sin6.sin6_addr) &&
5278 SM_IS_IPV4_LOOP(((uint32_t *) (&sa.sin6.sin6_addr))[3]))
5279 return true;
5280 if (sa.sa.sa_family == AF_INET6 &&
5281 IN6_IS_ADDR_LOOPBACK(&sa.sin6.sin6_addr))
5282 return true;
5283 #endif
5284 #if NETINET
5285 if (sa.sa.sa_family == AF_INET &&
5286 SM_IS_IPV4_LOOP(sa.sin.sin_addr.s_addr))
5287 return true;
5288 #endif
5289 return false;
5290 }
5291
5292 /*
5293 ** GET_NUM_PROCS_ONLINE -- return the number of processors currently online
5294 **
5295 ** Parameters:
5296 ** none.
5297 **
5298 ** Returns:
5299 ** The number of processors online.
5300 */
5301
5302 static int
get_num_procs_online()5303 get_num_procs_online()
5304 {
5305 int nproc = 0;
5306
5307 #ifdef USESYSCTL
5308 # if defined(CTL_HW) && defined(HW_NCPU)
5309 size_t sz;
5310 int mib[2];
5311
5312 mib[0] = CTL_HW;
5313 mib[1] = HW_NCPU;
5314 sz = (size_t) sizeof(nproc);
5315 (void) sysctl(mib, 2, &nproc, &sz, NULL, 0);
5316 # endif /* defined(CTL_HW) && defined(HW_NCPU) */
5317 #else /* USESYSCTL */
5318 # ifdef _SC_NPROCESSORS_ONLN
5319 nproc = (int) sysconf(_SC_NPROCESSORS_ONLN);
5320 # else /* _SC_NPROCESSORS_ONLN */
5321 # ifdef __hpux
5322 # include <sys/pstat.h>
5323 struct pst_dynamic psd;
5324
5325 if (pstat_getdynamic(&psd, sizeof(psd), (size_t)1, 0) != -1)
5326 nproc = psd.psd_proc_cnt;
5327 # endif /* __hpux */
5328 # endif /* _SC_NPROCESSORS_ONLN */
5329 #endif /* USESYSCTL */
5330
5331 if (nproc <= 0)
5332 nproc = 1;
5333 return nproc;
5334 }
5335 /*
5336 ** SM_CLOSEFROM -- close file descriptors
5337 **
5338 ** Parameters:
5339 ** lowest -- first fd to close
5340 ** highest -- last fd + 1 to close
5341 **
5342 ** Returns:
5343 ** none
5344 */
5345
5346 void
sm_closefrom(lowest,highest)5347 sm_closefrom(lowest, highest)
5348 int lowest, highest;
5349 {
5350 #if HASCLOSEFROM
5351 closefrom(lowest);
5352 #else /* HASCLOSEFROM */
5353 int i;
5354
5355 for (i = lowest; i < highest; i++)
5356 (void) close(i);
5357 #endif /* HASCLOSEFROM */
5358 }
5359 #if HASFDWALK
5360 /*
5361 ** CLOSEFD_WALK -- walk fd's arranging to close them
5362 ** Callback for fdwalk()
5363 **
5364 ** Parameters:
5365 ** lowest -- first fd to arrange to be closed
5366 ** fd -- fd to arrange to be closed
5367 **
5368 ** Returns:
5369 ** zero
5370 */
5371
5372 static int
closefd_walk(lowest,fd)5373 closefd_walk(lowest, fd)
5374 void *lowest;
5375 int fd;
5376 {
5377 if (fd >= *(int *)lowest)
5378 (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
5379 return 0;
5380 }
5381 #endif /* HASFDWALK */
5382 /*
5383 ** SM_CLOSE_ON_EXEC -- arrange for file descriptors to be closed
5384 **
5385 ** Parameters:
5386 ** lowest -- first fd to arrange to be closed
5387 ** highest -- last fd + 1 to arrange to be closed
5388 **
5389 ** Returns:
5390 ** none
5391 */
5392
5393 void
sm_close_on_exec(lowest,highest)5394 sm_close_on_exec(lowest, highest)
5395 int lowest, highest;
5396 {
5397 #if HASFDWALK
5398 (void) fdwalk(closefd_walk, &lowest);
5399 #else /* HASFDWALK */
5400 int i, j;
5401
5402 for (i = lowest; i < highest; i++)
5403 {
5404 if ((j = fcntl(i, F_GETFD, 0)) != -1)
5405 (void) fcntl(i, F_SETFD, j | FD_CLOEXEC);
5406 }
5407 #endif /* HASFDWALK */
5408 }
5409 /*
5410 ** SEED_RANDOM -- seed the random number generator
5411 **
5412 ** Parameters:
5413 ** none
5414 **
5415 ** Returns:
5416 ** none
5417 */
5418
5419 void
seed_random()5420 seed_random()
5421 {
5422 #if HASSRANDOMDEV
5423 srandomdev();
5424 #else /* HASSRANDOMDEV */
5425 long seed;
5426 struct timeval t;
5427
5428 seed = (long) CurrentPid;
5429 if (gettimeofday(&t, NULL) >= 0)
5430 seed += t.tv_sec + t.tv_usec;
5431
5432 # if HASRANDOM
5433 (void) srandom(seed);
5434 # else
5435 (void) srand((unsigned int) seed);
5436 # endif
5437 #endif /* HASSRANDOMDEV */
5438 }
5439 /*
5440 ** SM_SYSLOG -- syslog wrapper to keep messages under SYSLOG_BUFSIZE
5441 **
5442 ** Parameters:
5443 ** level -- syslog level
5444 ** id -- envelope ID or NULL (NOQUEUE)
5445 ** fmt -- format string
5446 ** arg... -- arguments as implied by fmt.
5447 **
5448 ** Returns:
5449 ** none
5450 */
5451
5452 /* VARARGS3 */
5453 void
5454 #ifdef __STDC__
sm_syslog(int level,const char * id,const char * fmt,...)5455 sm_syslog(int level, const char *id, const char *fmt, ...)
5456 #else /* __STDC__ */
5457 sm_syslog(level, id, fmt, va_alist)
5458 int level;
5459 const char *id;
5460 const char *fmt;
5461 va_dcl
5462 #endif /* __STDC__ */
5463 {
5464 char *buf;
5465 size_t bufsize;
5466 char *begin, *end;
5467 int save_errno;
5468 int seq = 1;
5469 int idlen;
5470 char buf0[MAXLINE];
5471 char *newstring;
5472 extern int SyslogPrefixLen;
5473 SM_VA_LOCAL_DECL
5474
5475 save_errno = errno;
5476 if (id == NULL)
5477 id = "NOQUEUE";
5478 idlen = strlen(id) + SyslogPrefixLen;
5479
5480 buf = buf0;
5481 bufsize = sizeof(buf0);
5482
5483 for (;;)
5484 {
5485 int n;
5486
5487 /* print log message into buf */
5488 SM_VA_START(ap, fmt);
5489 n = sm_vsnprintf(buf, bufsize, fmt, ap);
5490 SM_VA_END(ap);
5491 SM_ASSERT(n >= 0);
5492 if (n < bufsize)
5493 break;
5494
5495 /* String too small, redo with correct size */
5496 bufsize = n + 1;
5497 if (buf != buf0)
5498 {
5499 sm_free(buf);
5500 buf = NULL;
5501 }
5502 buf = sm_malloc_x(bufsize);
5503 }
5504
5505 /* clean up buf after it has been expanded with args */
5506 newstring = str2prt(buf);
5507 if ((strlen(newstring) + idlen + 1) < SYSLOG_BUFSIZE)
5508 {
5509 #if LOG
5510 if (*id == '\0')
5511 {
5512 if (tTd(89, 10))
5513 {
5514 struct timeval tv;
5515
5516 gettimeofday(&tv, NULL);
5517 sm_dprintf("%ld.%06ld %s\n", (long) tv.tv_sec,
5518 (long) tv.tv_usec, newstring);
5519 }
5520 else if (tTd(89, 8))
5521 sm_dprintf("%s\n", newstring);
5522 else
5523 syslog(level, "%s", newstring);
5524 }
5525 else
5526 {
5527 if (tTd(89, 10))
5528 {
5529 struct timeval tv;
5530
5531 gettimeofday(&tv, NULL);
5532 sm_dprintf("%ld.%06ld %s: %s\n", (long) tv.tv_sec,
5533 (long) tv.tv_usec, id, newstring);
5534 }
5535 else if (tTd(89, 8))
5536 sm_dprintf("%s: %s\n", id, newstring);
5537 else
5538 syslog(level, "%s: %s", id, newstring);
5539 }
5540 #else /* LOG */
5541 /*XXX should do something more sensible */
5542 if (*id == '\0')
5543 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, "%s\n",
5544 newstring);
5545 else
5546 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
5547 "%s: %s\n", id, newstring);
5548 #endif /* LOG */
5549 if (buf != buf0)
5550 sm_free(buf);
5551 errno = save_errno;
5552 return;
5553 }
5554
5555 /*
5556 ** additional length for splitting: " ..." + 3, where 3 is magic to
5557 ** have some data for the next entry.
5558 */
5559
5560 #define SL_SPLIT 7
5561
5562 begin = newstring;
5563 idlen += 5; /* strlen("[999]"), see below */
5564 while (*begin != '\0' &&
5565 (strlen(begin) + idlen) > SYSLOG_BUFSIZE)
5566 {
5567 char save;
5568
5569 if (seq >= 999)
5570 {
5571 /* Too many messages */
5572 break;
5573 }
5574 end = begin + SYSLOG_BUFSIZE - idlen - SL_SPLIT;
5575 while (end > begin)
5576 {
5577 /* Break on comma or space */
5578 if (*end == ',' || *end == ' ')
5579 {
5580 end++; /* Include separator */
5581 break;
5582 }
5583 end--;
5584 }
5585 /* No separator, break midstring... */
5586 if (end == begin)
5587 end = begin + SYSLOG_BUFSIZE - idlen - SL_SPLIT;
5588 save = *end;
5589 *end = 0;
5590 #if LOG
5591 if (tTd(89, 8))
5592 sm_dprintf("%s[%d]: %s ...\n", id, seq++, begin);
5593 else
5594 syslog(level, "%s[%d]: %s ...", id, seq++, begin);
5595 #else /* LOG */
5596 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
5597 "%s[%d]: %s ...\n", id, seq++, begin);
5598 #endif /* LOG */
5599 *end = save;
5600 begin = end;
5601 }
5602 if (seq >= 999)
5603 {
5604 #if LOG
5605 if (tTd(89, 8))
5606 sm_dprintf("%s[%d]: log terminated, too many parts\n",
5607 id, seq);
5608 else
5609 syslog(level, "%s[%d]: log terminated, too many parts",
5610 id, seq);
5611 #else /* LOG */
5612 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
5613 "%s[%d]: log terminated, too many parts\n", id, seq);
5614 #endif /* LOG */
5615 }
5616 else if (*begin != '\0')
5617 {
5618 #if LOG
5619 if (tTd(89, 8))
5620 sm_dprintf("%s[%d]: %s\n", id, seq, begin);
5621 else
5622 syslog(level, "%s[%d]: %s", id, seq, begin);
5623 #else /* LOG */
5624 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT,
5625 "%s[%d]: %s\n", id, seq, begin);
5626 #endif /* LOG */
5627 }
5628 if (buf != buf0)
5629 sm_free(buf);
5630 errno = save_errno;
5631 }
5632 /*
5633 ** HARD_SYSLOG -- call syslog repeatedly until it works
5634 **
5635 ** Needed on HP-UX, which apparently doesn't guarantee that
5636 ** syslog succeeds during interrupt handlers.
5637 */
5638
5639 #if defined(__hpux) && !defined(HPUX11)
5640
5641 # define MAXSYSLOGTRIES 100
5642 # undef syslog
5643 # ifdef V4FS
5644 # define XCNST const
5645 # define CAST (const char *)
5646 # else
5647 # define XCNST
5648 # define CAST
5649 # endif
5650
5651 void
5652 # ifdef __STDC__
hard_syslog(int pri,XCNST char * msg,...)5653 hard_syslog(int pri, XCNST char *msg, ...)
5654 # else /* __STDC__ */
5655 hard_syslog(pri, msg, va_alist)
5656 int pri;
5657 XCNST char *msg;
5658 va_dcl
5659 # endif /* __STDC__ */
5660 {
5661 int i;
5662 char buf[SYSLOG_BUFSIZE];
5663 SM_VA_LOCAL_DECL
5664
5665 SM_VA_START(ap, msg);
5666 (void) sm_vsnprintf(buf, sizeof(buf), msg, ap);
5667 SM_VA_END(ap);
5668
5669 for (i = MAXSYSLOGTRIES; --i >= 0 && syslog(pri, CAST "%s", buf) < 0; )
5670 continue;
5671 }
5672
5673 # undef CAST
5674 #endif /* defined(__hpux) && !defined(HPUX11) */
5675 #if NEEDLOCAL_HOSTNAME_LENGTH
5676 /*
5677 ** LOCAL_HOSTNAME_LENGTH
5678 **
5679 ** This is required to get sendmail to compile against BIND 4.9.x
5680 ** on Ultrix.
5681 **
5682 ** Unfortunately, a Compaq Y2K patch kit provides it without
5683 ** bumping __RES in /usr/include/resolv.h so we can't automatically
5684 ** figure out whether it is needed.
5685 */
5686
5687 int
local_hostname_length(hostname)5688 local_hostname_length(hostname)
5689 char *hostname;
5690 {
5691 size_t len_host, len_domain;
5692
5693 if (!*_res.defdname)
5694 res_init();
5695 len_host = strlen(hostname);
5696 len_domain = strlen(_res.defdname);
5697 if (len_host > len_domain &&
5698 (sm_strcasecmp(hostname + len_host - len_domain,
5699 _res.defdname) == 0) &&
5700 hostname[len_host - len_domain - 1] == '.')
5701 return len_host - len_domain - 1;
5702 else
5703 return 0;
5704 }
5705 #endif /* NEEDLOCAL_HOSTNAME_LENGTH */
5706
5707 #if NEEDLINK
5708 /*
5709 ** LINK -- clone a file
5710 **
5711 ** Some OS's lacks link() and hard links. Since sendmail is using
5712 ** link() as an efficient way to clone files, this implementation
5713 ** will simply do a file copy.
5714 **
5715 ** NOTE: This link() replacement is not a generic replacement as it
5716 ** does not handle all of the semantics of the real link(2).
5717 **
5718 ** Parameters:
5719 ** source -- pathname of existing file.
5720 ** target -- pathname of link (clone) to be created.
5721 **
5722 ** Returns:
5723 ** 0 -- success.
5724 ** -1 -- failure, see errno for details.
5725 */
5726
5727 int
link(source,target)5728 link(source, target)
5729 const char *source;
5730 const char *target;
5731 {
5732 int save_errno;
5733 int sff;
5734 int src = -1, dst = -1;
5735 ssize_t readlen;
5736 ssize_t writelen;
5737 char buf[BUFSIZ];
5738 struct stat st;
5739
5740 sff = SFF_REGONLY|SFF_OPENASROOT;
5741 if (DontLockReadFiles)
5742 sff |= SFF_NOLOCK;
5743
5744 /* Open the original file */
5745 src = safeopen((char *)source, O_RDONLY, 0, sff);
5746 if (src < 0)
5747 goto fail;
5748
5749 /* Obtain the size and the mode */
5750 if (fstat(src, &st) < 0)
5751 goto fail;
5752
5753 /* Create the duplicate copy */
5754 sff &= ~SFF_NOLOCK;
5755 sff |= SFF_CREAT;
5756 dst = safeopen((char *)target, O_CREAT|O_EXCL|O_WRONLY,
5757 st.st_mode, sff);
5758 if (dst < 0)
5759 goto fail;
5760
5761 /* Copy all of the bytes one buffer at a time */
5762 while ((readlen = read(src, &buf, sizeof(buf))) > 0)
5763 {
5764 ssize_t left = readlen;
5765 char *p = buf;
5766
5767 while (left > 0 &&
5768 (writelen = write(dst, p, (size_t) left)) >= 0)
5769 {
5770 left -= writelen;
5771 p += writelen;
5772 }
5773 if (writelen < 0)
5774 break;
5775 }
5776
5777 /* Any trouble reading? */
5778 if (readlen < 0 || writelen < 0)
5779 goto fail;
5780
5781 /* Close the input file */
5782 if (close(src) < 0)
5783 {
5784 src = -1;
5785 goto fail;
5786 }
5787 src = -1;
5788
5789 /* Close the output file */
5790 if (close(dst) < 0)
5791 {
5792 /* don't set dst = -1 here so we unlink the file */
5793 goto fail;
5794 }
5795
5796 /* Success */
5797 return 0;
5798
5799 fail:
5800 save_errno = errno;
5801 if (src >= 0)
5802 (void) close(src);
5803 if (dst >= 0)
5804 {
5805 (void) unlink(target);
5806 (void) close(dst);
5807 }
5808 errno = save_errno;
5809 return -1;
5810 }
5811 #endif /* NEEDLINK */
5812
5813 /*
5814 ** Compile-Time options
5815 */
5816
5817 #define SM_STR(x) #x
5818 #define SM_XSTR(x) SM_STR(x)
5819
5820 char *CompileOptions[] =
5821 {
5822 #if ALLOW_255
5823 "ALLOW_255",
5824 #endif
5825 #if DANE
5826 # if STARTTLS
5827 "DANE",
5828 # else
5829 # error "DANE set but STARTTLS not defined"
5830 # endif
5831 #endif
5832 #if NAMED_BIND
5833 # if DNSMAP
5834 "DNSMAP",
5835 # endif
5836 #endif
5837 #if EGD
5838 "EGD",
5839 #endif
5840 #if HESIOD
5841 "HESIOD",
5842 #endif
5843 #if HESIOD_ALLOW_NUMERIC_LOGIN
5844 "HESIOD_ALLOW_NUMERIC_LOGIN",
5845 #endif
5846 #if HES_GETMAILHOST
5847 "HES_GETMAILHOST",
5848 #endif
5849 #if IPV6_FULL
5850 /* Use uncompressed IPv6 address format (no "::") by default */
5851 "IPV6_FULL",
5852 #endif
5853 #if LDAPMAP
5854 "LDAPMAP",
5855 #endif
5856 #if LDAP_NETWORK_TIMEOUT
5857 # if LDAPMAP && defined(LDAP_OPT_NETWORK_TIMEOUT)
5858 /* set LDAP_OPT_NETWORK_TIMEOUT if available (-c) */
5859 "LDAP_NETWORK_TIMEOUT",
5860 # else
5861 # ERROR: _LDAP_NETWORK_TIMEOUT requires _LDAPMAP
5862 # endif
5863 #endif
5864 #if LDAP_REFERRALS
5865 "LDAP_REFERRALS",
5866 #endif
5867 #if LOG
5868 "LOG",
5869 #endif
5870 #if MAP_NSD
5871 "MAP_NSD",
5872 #endif
5873 #if MAP_REGEX
5874 "MAP_REGEX",
5875 #endif
5876 #if MATCHGECOS
5877 "MATCHGECOS",
5878 #endif
5879 #if MAXDAEMONS != 10
5880 "MAXDAEMONS=" SM_XSTR(MAXDAEMONS),
5881 #endif
5882 #if defined(MSGIDLOGLEN)
5883 "MSGIDLOGLEN=" SM_XSTR(MSGIDLOGLEN),
5884 #endif
5885 #if MILTER
5886 "MILTER",
5887 #endif
5888 #if MIME7TO8
5889 "MIME7TO8",
5890 #endif
5891 #if MIME7TO8_OLD
5892 "MIME7TO8_OLD",
5893 #endif
5894 #if MIME8TO7
5895 "MIME8TO7",
5896 #endif
5897 #if NAMED_BIND
5898 "NAMED_BIND",
5899 #endif
5900 #if NDBM
5901 "NDBM",
5902 #endif
5903 #if NETINET
5904 "NETINET",
5905 #endif
5906 #if NETINET6
5907 "NETINET6",
5908 #endif
5909 #if NETINFO
5910 "NETINFO",
5911 #endif
5912 #if NETISO
5913 "NETISO",
5914 #endif
5915 #if NETNS
5916 "NETNS",
5917 #endif
5918 #if NETUNIX
5919 "NETUNIX",
5920 #endif
5921 #if NETX25
5922 "NETX25",
5923 #endif
5924 #if NO_EOH_FIELDS
5925 "NO_EOH_FIELDS",
5926 #endif
5927 #if NEWDB
5928 # if defined(DB_VERSION_MAJOR) && defined(DB_VERSION_MINOR)
5929 "NEWDB=" SM_XSTR(DB_VERSION_MAJOR) "." SM_XSTR(DB_VERSION_MINOR),
5930 # else
5931 "NEWDB",
5932 # endif
5933 #endif
5934 #if CDB
5935 "CDB=" SM_XSTR(CDB),
5936 #endif
5937 #if NIS
5938 "NIS",
5939 #endif
5940 #if NISPLUS
5941 "NISPLUS",
5942 #endif
5943 #if NO_DH
5944 "NO_DH",
5945 #endif
5946 #if PH_MAP
5947 "PH_MAP",
5948 #endif
5949 #ifdef PICKY_HELO_CHECK
5950 "PICKY_HELO_CHECK",
5951 #endif
5952 #if PIPELINING
5953 "PIPELINING",
5954 #endif
5955 #if SASL
5956 # if SASL >= 20000
5957 "SASLv2",
5958 # else
5959 "SASL",
5960 # endif
5961 #endif
5962 #if SCANF
5963 "SCANF",
5964 #endif
5965 #if SM_LDAP_ERROR_ON_MISSING_ARGS
5966 "SM_LDAP_ERROR_ON_MISSING_ARGS",
5967 #endif
5968 #if SMTPDEBUG
5969 "SMTPDEBUG",
5970 #endif
5971 #if SOCKETMAP
5972 "SOCKETMAP",
5973 #endif
5974 #if STARTTLS
5975 "STARTTLS",
5976 #endif
5977 #if SUID_ROOT_FILES_OK
5978 "SUID_ROOT_FILES_OK",
5979 #endif
5980 #if SYSLOG_BUFSIZE > 1024
5981 "SYSLOG_BUFSIZE=" SM_XSTR(SYSLOG_BUFSIZE),
5982 #endif
5983 #if TCPWRAPPERS
5984 "TCPWRAPPERS",
5985 #endif
5986 #if TLS_NO_RSA
5987 "TLS_NO_RSA",
5988 #endif
5989 #if TLS_EC
5990 /* elliptic curves */
5991 "TLS_EC",
5992 #endif
5993 #if TLS_VRFY_PER_CTX
5994 "TLS_VRFY_PER_CTX",
5995 #endif
5996 #if USERDB
5997 "USERDB",
5998 #endif
5999 #if USE_LDAP_INIT
6000 "USE_LDAP_INIT",
6001 #endif
6002 #if USE_TTYPATH
6003 "USE_TTYPATH",
6004 #endif
6005 #if XDEBUG
6006 "XDEBUG",
6007 #endif
6008 #if XLA
6009 "XLA",
6010 #endif
6011 NULL
6012 };
6013
6014
6015 /*
6016 ** OS compile options.
6017 */
6018
6019 char *OsCompileOptions[] =
6020 {
6021 #if ADDRCONFIG_IS_BROKEN
6022 "ADDRCONFIG_IS_BROKEN",
6023 #endif
6024 #ifdef AUTO_NETINFO_HOSTS
6025 "AUTO_NETINFO_HOSTS",
6026 #endif
6027 #ifdef AUTO_NIS_ALIASES
6028 "AUTO_NIS_ALIASES",
6029 #endif
6030 #if BROKEN_RES_SEARCH
6031 "BROKEN_RES_SEARCH",
6032 #endif
6033 #ifdef BSD4_4_SOCKADDR
6034 "BSD4_4_SOCKADDR",
6035 #endif
6036 #if BOGUS_O_EXCL
6037 "BOGUS_O_EXCL",
6038 #endif
6039 #if DEC_OSF_BROKEN_GETPWENT
6040 "DEC_OSF_BROKEN_GETPWENT",
6041 #endif
6042 #if DNSSEC_TEST
6043 "DNSSEC_TEST",
6044 #endif
6045 #if FAST_PID_RECYCLE
6046 "FAST_PID_RECYCLE",
6047 #endif
6048 #if HASCLOSEFROM
6049 "HASCLOSEFROM",
6050 #endif
6051 #if HASFCHOWN
6052 "HASFCHOWN",
6053 #endif
6054 #if HASFCHMOD
6055 "HASFCHMOD",
6056 #endif
6057 #if HASFDWALK
6058 "HASFDWALK",
6059 #endif
6060 #if HASFLOCK
6061 "HASFLOCK",
6062 #endif
6063 #if HASGETDTABLESIZE
6064 "HASGETDTABLESIZE",
6065 #endif
6066 #if HAS_GETHOSTBYNAME2
6067 "HAS_GETHOSTBYNAME2",
6068 #endif
6069 #if HASGETUSERSHELL
6070 "HASGETUSERSHELL",
6071 #endif
6072 #if HASINITGROUPS
6073 "HASINITGROUPS",
6074 #endif
6075 #if HASLDAPGETALIASBYNAME
6076 "HASLDAPGETALIASBYNAME",
6077 #endif
6078 #if HASLSTAT
6079 "HASLSTAT",
6080 #endif
6081 #if HASNICE
6082 "HASNICE",
6083 #endif
6084 #if HASRANDOM
6085 "HASRANDOM",
6086 #endif
6087 #if HASRRESVPORT
6088 "HASRRESVPORT",
6089 #endif
6090 #if HASSETEGID
6091 "HASSETEGID",
6092 #endif
6093 #if HASSETLOGIN
6094 "HASSETLOGIN",
6095 #endif
6096 #if HASSETREGID
6097 "HASSETREGID",
6098 #endif
6099 #if HASSETRESGID
6100 "HASSETRESGID",
6101 #endif
6102 #if HASSETREUID
6103 "HASSETREUID",
6104 #endif
6105 #if HASSETRLIMIT
6106 "HASSETRLIMIT",
6107 #endif
6108 #if HASSETSID
6109 "HASSETSID",
6110 #endif
6111 #if HASSETUSERCONTEXT
6112 "HASSETUSERCONTEXT",
6113 #endif
6114 #if HASSETVBUF
6115 "HASSETVBUF",
6116 #endif
6117 #if HAS_ST_GEN
6118 "HAS_ST_GEN",
6119 #endif
6120 #if HASSRANDOMDEV
6121 "HASSRANDOMDEV",
6122 #endif
6123 #if HASURANDOMDEV
6124 "HASURANDOMDEV",
6125 #endif
6126 #if HASSTRERROR
6127 "HASSTRERROR",
6128 #endif
6129 #if HASULIMIT
6130 "HASULIMIT",
6131 #endif
6132 #if HASUNAME
6133 "HASUNAME",
6134 #endif
6135 #if HASUNSETENV
6136 "HASUNSETENV",
6137 #endif
6138 #if HASWAITPID
6139 "HASWAITPID",
6140 #endif
6141 #if HAVE_NANOSLEEP
6142 "HAVE_NANOSLEEP",
6143 #endif
6144 #if IDENTPROTO
6145 "IDENTPROTO",
6146 #endif
6147 #if IP_SRCROUTE
6148 "IP_SRCROUTE",
6149 #endif
6150 #if O_EXLOCK && HASFLOCK && !BOGUS_O_EXCL
6151 "LOCK_ON_OPEN",
6152 #endif
6153 #if MILTER_NO_NAGLE
6154 "MILTER_NO_NAGLE ",
6155 #endif
6156 #if NEEDFSYNC
6157 "NEEDFSYNC",
6158 #endif
6159 #if NEEDLINK
6160 "NEEDLINK",
6161 #endif
6162 #if NEEDLOCAL_HOSTNAME_LENGTH
6163 "NEEDLOCAL_HOSTNAME_LENGTH",
6164 #endif
6165 #if NEEDSGETIPNODE
6166 "NEEDSGETIPNODE",
6167 #endif
6168 #if NEEDSTRSTR
6169 "NEEDSTRSTR",
6170 #endif
6171 #if NEEDSTRTOL
6172 "NEEDSTRTOL",
6173 #endif
6174 #ifdef NO_GETSERVBYNAME
6175 "NO_GETSERVBYNAME",
6176 #endif
6177 #if NOFTRUNCATE
6178 "NOFTRUNCATE",
6179 #endif
6180 #if REQUIRES_DIR_FSYNC
6181 "REQUIRES_DIR_FSYNC",
6182 #endif
6183 #if RLIMIT_NEEDS_SYS_TIME_H
6184 "RLIMIT_NEEDS_SYS_TIME_H",
6185 #endif
6186 #if SAFENFSPATHCONF
6187 "SAFENFSPATHCONF",
6188 #endif
6189 #if SECUREWARE
6190 "SECUREWARE",
6191 #endif
6192 #if SFS_TYPE == SFS_4ARGS
6193 "SFS_4ARGS",
6194 #elif SFS_TYPE == SFS_MOUNT
6195 "SFS_MOUNT",
6196 #elif SFS_TYPE == SFS_NONE
6197 "SFS_NONE",
6198 #elif SFS_TYPE == SFS_NT
6199 "SFS_NT",
6200 #elif SFS_TYPE == SFS_STATFS
6201 "SFS_STATFS",
6202 #elif SFS_TYPE == SFS_STATVFS
6203 "SFS_STATVFS",
6204 #elif SFS_TYPE == SFS_USTAT
6205 "SFS_USTAT",
6206 #elif SFS_TYPE == SFS_VFS
6207 "SFS_VFS",
6208 #endif
6209 #if SHARE_V1
6210 "SHARE_V1",
6211 #endif
6212 #if SIOCGIFCONF_IS_BROKEN
6213 "SIOCGIFCONF_IS_BROKEN",
6214 #endif
6215 #if SIOCGIFNUM_IS_BROKEN
6216 "SIOCGIFNUM_IS_BROKEN",
6217 #endif
6218 #if SNPRINTF_IS_BROKEN
6219 "SNPRINTF_IS_BROKEN",
6220 #endif
6221 #if SO_REUSEADDR_IS_BROKEN
6222 "SO_REUSEADDR_IS_BROKEN",
6223 #endif
6224 #if SYS5SETPGRP
6225 "SYS5SETPGRP",
6226 #endif
6227 #if SYSTEM5
6228 "SYSTEM5",
6229 #endif
6230 #if USE_DOUBLE_FORK
6231 "USE_DOUBLE_FORK",
6232 #endif
6233 #if USE_ENVIRON
6234 "USE_ENVIRON",
6235 #endif
6236 #if USE_SA_SIGACTION
6237 "USE_SA_SIGACTION",
6238 #endif
6239 #if USE_SIGLONGJMP
6240 "USE_SIGLONGJMP",
6241 #endif
6242 #if USEGETCONFATTR
6243 "USEGETCONFATTR",
6244 #endif
6245 #if USESETEUID
6246 "USESETEUID",
6247 #endif
6248 #ifdef USESYSCTL
6249 "USESYSCTL",
6250 #endif
6251 #if USE_OPENSSL_ENGINE
6252 /*
6253 ** 0: OpenSSL ENGINE?
6254 ** 1: Support Sun OpenSSL patch for SPARC T4 pkcs11
6255 ** 2: none
6256 */
6257 # if USE_OPENSSL_ENGINE != 1
6258 "USE_OPENSSL_ENGINE=" SM_XSTR(USE_OPENSSL_ENGINE),
6259 # else
6260 "USE_OPENSSL_ENGINE",
6261 #endif
6262 #endif
6263 #if USING_NETSCAPE_LDAP
6264 "USING_NETSCAPE_LDAP",
6265 #endif
6266 #ifdef WAITUNION
6267 "WAITUNION",
6268 #endif
6269 NULL
6270 };
6271
6272 /*
6273 ** FFR compile options.
6274 */
6275
6276 char *FFRCompileOptions[] =
6277 {
6278 #if _FFR_ADD_BCC
6279 /* see cf/feature/bcc.m4 */
6280 "_FFR_ADD_BCC",
6281 #endif
6282 #if _FFR_ADDR_TYPE_MODES
6283 /* more info in {addr_type}, requires m4 changes! */
6284 "_FFR_ADDR_TYPE_MODES",
6285 #endif
6286 #if _FFR_ALIAS_DETAIL
6287 /* try to handle +detail for aliases */
6288 "_FFR_ALIAS_DETAIL",
6289 #endif
6290 #if _FFR_ALLOW_SASLINFO
6291 /* DefaultAuthInfo can be specified by user. */
6292 /* DefaultAuthInfo doesn't really work in 8.13 anymore. */
6293 "_FFR_ALLOW_SASLINFO",
6294 #endif
6295 #if _FFR_BADRCPT_SHUTDOWN
6296 /* shut down connection (421) if there are too many bad RCPTs */
6297 "_FFR_BADRCPT_SHUTDOWN",
6298 #endif
6299 #if _FFR_BESTMX_BETTER_TRUNCATION
6300 /* Better truncation of list of MX records for dns map. */
6301 "_FFR_BESTMX_BETTER_TRUNCATION",
6302 #endif
6303 #if _FFR_BLANKENV_MACV
6304 /* also look up macros in BlankEnvelope */
6305 "_FFR_BLANKENV_MACV",
6306 #endif
6307 #if _FFR_BOUNCE_QUEUE
6308 /* Separate, unprocessed queue for DSNs */
6309 /* John Gardiner Myers of Proofpoint */
6310 "_FFR_BOUNCE_QUEUE",
6311 #endif
6312 #if _FFR_CATCH_BROKEN_MTAS
6313 /* Deal with MTAs that send a reply during the DATA phase. */
6314 "_FFR_CATCH_BROKEN_MTAS",
6315 #endif
6316 #if _FFR_CHK_QUEUE
6317 /* Stricter checks about queue directory permissions. */
6318 "_FFR_CHK_QUEUE",
6319 #endif
6320 #if _FFR_CLIENTCA
6321 /*
6322 ** Allow to set client specific CA values.
6323 ** CACertFile: see doc/op.*:
6324 ** "The DNs of these certificates are sent to the client
6325 ** during the TLS handshake (as part of the CertificateRequest)
6326 ** as the list of acceptable CAs.
6327 ** However, do not list too many root CAs in that file,
6328 ** otherwise the TLS handshake may fail;"
6329 ** In TLSv1.3 the certs in CACertFile are also sent by
6330 ** the client to the server and there is seemingly a
6331 ** 16KB limit (just in OpenSSL?).
6332 ** Having a separate CACertFile for the client
6333 ** helps to avoid this problem.
6334 */
6335
6336 "_FFR_CLIENTCA",
6337 #endif
6338 #if _FFR_CLIENT_SIZE
6339 /* Don't try to send mail if its size exceeds SIZE= of server. */
6340 "_FFR_CLIENT_SIZE",
6341 #endif
6342 #if _FFR_DM_ONE
6343 /* deliver first TA in background, then queue */
6344 "_FFR_DM_ONE",
6345 #endif
6346 #if _FFR_DIGUNIX_SAFECHOWN
6347 /* Properly set SAFECHOWN (include/sm/conf.h) for Digital UNIX */
6348 /* Problem noted by Anne Bennett of Concordia University */
6349 "_FFR_DIGUNIX_SAFECHOWN",
6350 #endif
6351 #if _FFR_DNSMAP_ALIASABLE
6352 /* Allow dns map type to be used for aliases. */
6353 /* Don Lewis of TDK */
6354 "_FFR_DNSMAP_ALIASABLE",
6355 #endif
6356 #if _FFR_DONTLOCKFILESFORREAD_OPTION
6357 /* Enable DontLockFilesForRead option. */
6358 "_FFR_DONTLOCKFILESFORREAD_OPTION",
6359 #endif
6360 #if _FFR_DOTTED_USERNAMES
6361 /* Allow usernames with '.' */
6362 "_FFR_DOTTED_USERNAMES",
6363 #endif
6364 #if _FFR_DPO_CS
6365 /*
6366 ** Make DaemonPortOptions case sensitive.
6367 ** For some unknown reasons the code converted every option
6368 ** to uppercase (first letter only, as that's the only one that
6369 ** is actually checked). This prevented all new lower case options
6370 ** from working...
6371 ** The documentation doesn't say anything about case (in)sensitivity,
6372 ** which means it should be case sensitive by default,
6373 ** but it's not a good idea to change this within a patch release,
6374 ** so let's delay this to 8.15.
6375 */
6376
6377 "_FFR_DPO_CS",
6378 #endif
6379 #if _FFR_DPRINTF_MAP
6380 /* dprintf map for logging */
6381 "_FFR_DPRINTF_MAP",
6382 #endif
6383 #if _FFR_DROP_TRUSTUSER_WARNING
6384 /*
6385 ** Don't issue this warning:
6386 ** "readcf: option TrustedUser may cause problems on systems
6387 ** which do not support fchown() if UseMSP is not set.
6388 */
6389
6390 "_FFR_DROP_TRUSTUSER_WARNING",
6391 #endif
6392 #if _FFR_EIGHT_BIT_ADDR_OK
6393 /* EightBitAddrOK: allow 8-bit e-mail addresses */
6394 "_FFR_EIGHT_BIT_ADDR_OK",
6395 #endif
6396 #if _FFR_EXPAND_HELONAME
6397 /* perform macro expansion for heloname */
6398 "_FFR_EXPAND_HELONAME",
6399 #endif
6400 #if _FFR_EXTRA_MAP_CHECK
6401 /* perform extra checks on $( $) in R lines */
6402 "_FFR_EXTRA_MAP_CHECK",
6403 #endif
6404 #if _FFR_GETHBN_ExFILE
6405 /*
6406 ** According to Motonori Nakamura some gethostbyname()
6407 ** implementations (TurboLinux?) may (temporarily) fail
6408 ** due to a lack of file descriptors. Enabling this FFR
6409 ** will check errno for EMFILE and ENFILE and in case of a match
6410 ** cause a temporary error instead of a permanent error.
6411 ** The right solution is of course to file a bug against those
6412 ** systems such that they actually set h_errno = TRY_AGAIN.
6413 */
6414
6415 "_FFR_GETHBN_ExFILE",
6416 #endif
6417 #if _FFR_FIPSMODE
6418 /* FIPSMode (if supported by OpenSSL library) */
6419 "_FFR_FIPSMODE",
6420 #endif
6421 #if _FFR_FIX_DASHT
6422 /*
6423 ** If using -t, force not sending to argv recipients, even
6424 ** if they are mentioned in the headers.
6425 */
6426
6427 "_FFR_FIX_DASHT",
6428 #endif
6429 #if _FFR_FORWARD_SYSERR
6430 /* Cause a "syserr" if forward file isn't "safe". */
6431 "_FFR_FORWARD_SYSERR",
6432 #endif
6433 #if _FFR_GEN_ORCPT
6434 /* Generate a ORCPT DSN arg if not already provided */
6435 "_FFR_GEN_ORCPT",
6436 #endif
6437 #if _FFR_HANDLE_ISO8859_GECOS
6438 /*
6439 ** Allow ISO 8859 characters in GECOS field: replace them
6440 ** with ASCII "equivalent".
6441 */
6442
6443 /* Peter Eriksson of Linkopings universitet */
6444 "_FFR_HANDLE_ISO8859_GECOS",
6445 #endif
6446 #if _FFR_HANDLE_HDR_RW_TEMPFAIL
6447 /*
6448 ** Temporary header rewriting problems from remotename() etc
6449 ** are not "sticky" for mci (e.g., during queue runs).
6450 */
6451
6452 "_FFR_HANDLE_HDR_RW_TEMPFAIL",
6453 #endif
6454 #if _FFR_HPUX_NSSWITCH
6455 /* Use nsswitch on HP-UX */
6456 "_FFR_HPUX_NSSWITCH",
6457 #endif
6458 #if _FFR_IGNORE_BOGUS_ADDR
6459 /* Ignore addresses for which prescan() failed */
6460 "_FFR_IGNORE_BOGUS_ADDR",
6461 #endif
6462 #if _FFR_IGNORE_EXT_ON_HELO
6463 /* Ignore extensions offered in response to HELO */
6464 "_FFR_IGNORE_EXT_ON_HELO",
6465 #endif
6466 #if _FFR_KEEPBCC
6467 /* Keep Bcc header */
6468 "_FFR_KEEPBCC",
6469 #endif
6470 #if _FFR_LOCAL_DAEMON
6471 /* Local daemon mode (-bl) which only accepts loopback connections */
6472 "_FFR_LOCAL_DAEMON",
6473 #endif
6474 #if _FFR_LOG_MORE1
6475 /* log some TLS/AUTH info in from= too */
6476 "_FFR_LOG_MORE1=" SM_XSTR(_FFR_LOG_MORE1),
6477 #endif
6478 #if _FFR_LOG_MORE2
6479 /* log some TLS info in to= too */
6480 "_FFR_LOG_MORE2=" SM_XSTR(_FFR_LOG_MORE2),
6481 #endif
6482 #if _FFR_LOG_MORE1 > 1 || _FFR_LOG_MORE2 > 1
6483 # if _FFR_LOG_MORE1 != _FFR_LOG_MORE2
6484 ERROR: FFR_LOG_MORE1 != FFR_LOG_MORE2
6485 # endif
6486 #endif
6487 #if _FFR_MAIL_MACRO
6488 /* make the "real" sender address available in {mail_from} */
6489 "_FFR_MAIL_MACRO",
6490 #endif
6491 #if _FFR_MAXDATASIZE
6492 /*
6493 ** It is possible that a header is larger than MILTER_CHUNK_SIZE,
6494 ** hence this shouldn't be used as limit for milter communication.
6495 ** see also libmilter/comm.c
6496 ** Gurusamy Sarathy of ActiveState
6497 */
6498
6499 "_FFR_MAXDATASIZE",
6500 #endif
6501 #if _FFR_MAX_FORWARD_ENTRIES
6502 /* Try to limit number of .forward entries */
6503 /* (doesn't work) */
6504 /* Randall S. Winchester of the University of Maryland */
6505 "_FFR_MAX_FORWARD_ENTRIES",
6506 #endif
6507 #if _FFR_MAX_SLEEP_TIME
6508 /* Limit sleep(2) time in libsm/clock.c */
6509 "_FFR_MAX_SLEEP_TIME",
6510 #endif
6511 #if _FFR_MDS_NEGOTIATE
6512 /* MaxDataSize negotiation with libmilter */
6513 "_FFR_MDS_NEGOTIATE",
6514 #endif
6515 #if _FFR_MEMSTAT
6516 /* Check free memory */
6517 "_FFR_MEMSTAT",
6518 #endif
6519 #if _FFR_MILTER_CHECK
6520 "_FFR_MILTER_CHECK",
6521 #endif
6522 #if _FFR_MILTER_CONNECT_REPLYCODE
6523 /* milter: propagate replycode returned by connect commands */
6524 /* John Gardiner Myers of Proofpoint */
6525 "_FFR_MILTER_CONNECT_REPLYCODE ",
6526 #endif
6527 #if _FFR_MILTER_CONVERT_ALL_LF_TO_CRLF
6528 /*
6529 ** milter_body() uses the same conversion algorithm as putbody()
6530 ** to translate the "local" df format (\n) to SMTP format (\r\n).
6531 ** However, putbody() and mime8to7() use different conversion
6532 ** algorithms.
6533 ** If the input date does not follow the SMTP standard
6534 ** (e.g., if it has "naked \r"s), then the output from putbody()
6535 ** and mime8to7() will most likely be different.
6536 ** By turning on this FFR milter_body() will try to "imitate"
6537 ** mime8to7().
6538 ** Note: there is no (simple) way to deal with both conversions
6539 ** in a consistent manner. Moreover, as the "GiGo" principle applies,
6540 ** it's not really worth to fix it.
6541 */
6542
6543 "_FFR_MILTER_CONVERT_ALL_LF_TO_CRLF",
6544 #endif
6545 #if _FFR_MILTER_CHECK_REJECTIONS_TOO
6546 /*
6547 ** Also send RCPTs that are rejected by check_rcpt to a milter
6548 ** (if requested during option negotiation).
6549 */
6550
6551 "_FFR_MILTER_CHECK_REJECTIONS_TOO",
6552 #endif
6553 #if _FFR_MILTER_ENHSC
6554 /* extract enhanced status code from milter replies for dsn= logging */
6555 "_FFR_MILTER_ENHSC",
6556 #endif
6557 #if _FFR_MIME7TO8_OLD
6558 /* Old mime7to8 code, the new is broken for at least one example. */
6559 "_FFR_MIME7TO8_OLD",
6560 #endif
6561 #if _FFR_MORE_MACROS
6562 /* allow more long macro names ("unprintable" characters). */
6563 "_FFR_MORE_MACROS",
6564 #endif
6565 #if _FFR_MSG_ACCEPT
6566 /* allow to override "Message accepted for delivery" */
6567 "_FFR_MSG_ACCEPT",
6568 #endif
6569 #if _FFR_NODELAYDSN_ON_HOLD
6570 /* Do not issue a DELAY DSN for mailers that use the hold flag. */
6571 /* Steven Pitzl */
6572 "_FFR_NODELAYDSN_ON_HOLD",
6573 #endif
6574 #if _FFR_NO_PIPE
6575 /* Disable PIPELINING, delay client if used. */
6576 "_FFR_NO_PIPE",
6577 #endif
6578 #if _FFR_LDAP_SINGLEDN
6579 /*
6580 ** The LDAP database map code in Sendmail 8.12.10, when
6581 ** given the -1 switch, would match only a single DN,
6582 ** but was able to return multiple attributes for that
6583 ** DN. In Sendmail 8.13 this "bug" was corrected to
6584 ** only return if exactly one attribute matched.
6585 **
6586 ** Unfortunately, our configuration uses the former
6587 ** behaviour. Attached is a relatively simple patch
6588 ** to 8.13.4 which adds a -2 switch (for lack of a
6589 ** better option) which returns the single dn/multiple
6590 ** attributes.
6591 **
6592 ** Jeffrey T. Eaton, Carnegie-Mellon University
6593 */
6594
6595 "_FFR_LDAP_SINGLEDN",
6596 #endif
6597 #if _FFR_LOG_NTRIES
6598 /* log ntries=, from Nik Clayton of FreeBSD */
6599 "_FFR_LOG_NTRIES",
6600 #endif
6601 #if _FFR_OCC
6602 # if SM_CONF_SHM
6603 /* outgoing connection control (not yet working) */
6604 "_FFR_OCC",
6605 # else
6606 # ERROR: FFR_OCC requires _SM_CONF_SHM
6607 # endif
6608 #endif
6609 #if _FFR_PROXY
6610 /* "proxy" (synchronous) delivery mode */
6611 "_FFR_PROXY",
6612 #endif
6613 #if _FFR_QF_PARANOIA
6614 /* Check to make sure key fields were read from qf */
6615 "_FFR_QF_PARANOIA",
6616 #endif
6617 #if _FFR_QUEUE_GROUP_SORTORDER
6618 /* Allow QueueSortOrder per queue group. */
6619 /* XXX: Still need to actually use qgrp->qg_sortorder */
6620 "_FFR_QUEUE_GROUP_SORTORDER",
6621 #endif
6622 #if _FFR_QUEUE_MACRO
6623 /* Define {queue} macro. */
6624 "_FFR_QUEUE_MACRO",
6625 #endif
6626 #if _FFR_QUEUE_RUN_PARANOIA
6627 /* Additional checks when doing queue runs; interval of checks */
6628 "_FFR_QUEUE_RUN_PARANOIA",
6629 #endif
6630 #if _FFR_QUEUE_SCHED_DBG
6631 /* Debug output for the queue scheduler. */
6632 "_FFR_QUEUE_SCHED_DBG",
6633 #endif
6634 #if _FFR_RCPTFLAGS
6635 /* dynamic mailer modifications via {rcpt_flags}*/
6636 "_FFR_RCPTFLAGS",
6637 #endif
6638 #if _FFR_RCPTTHROTDELAY
6639 /* configurable delay for BadRcptThrottle */
6640 "_FFR_RCPTTHROTDELAY",
6641 #endif
6642 #if _FFR_REDIRECTEMPTY
6643 /*
6644 ** envelope <> can't be sent to mailing lists, only owner-
6645 ** send spam of this type to owner- of the list
6646 ** ---- to stop spam from going to mailing lists.
6647 */
6648
6649 "_FFR_REDIRECTEMPTY",
6650 #endif
6651 #if _FFR_REJECT_NUL_BYTE
6652 /* reject NUL bytes in body */
6653 "_FFR_REJECT_NUL_BYTE",
6654 #endif
6655 #if _FFR_RESET_MACRO_GLOBALS
6656 /* Allow macro 'j' to be set dynamically via rulesets. */
6657 "_FFR_RESET_MACRO_GLOBALS",
6658 #endif
6659 #if _FFR_RHS
6660 /* Random shuffle for queue sorting. */
6661 "_FFR_RHS",
6662 #endif
6663 #if _FFR_RUNPQG
6664 /*
6665 ** allow -qGqueue_group -qp to work, i.e.,
6666 ** restrict a persistent queue runner to a queue group.
6667 */
6668
6669 "_FFR_RUNPQG",
6670 #endif
6671 #if _FFR_SESSID
6672 /* session id (for logging): WIP, no logging yet! */
6673 "_FFR_SESSID",
6674 #endif
6675 #if _FFR_SETANYOPT
6676 "_FFR_SETANYOPT",
6677 #endif
6678 #if _FFR_SETDEBUG_MAP
6679 "_FFR_SETDEBUG_MAP",
6680 #endif
6681 #if _FFR_SETOPT_MAP
6682 "_FFR_SETOPT_MAP",
6683 #endif
6684 #if _FFR_SHM_STATUS
6685 /* Donated code (unused). */
6686 "_FFR_SHM_STATUS",
6687 #endif
6688 #if _FFR_SKIP_DOMAINS
6689 /* process every N'th domain instead of every N'th message */
6690 "_FFR_SKIP_DOMAINS",
6691 #endif
6692 #if _FFR_SLEEP_USE_SELECT
6693 /* Use select(2) in libsm/clock.c to emulate sleep(2) */
6694 "_FFR_SLEEP_USE_SELECT ",
6695 #endif
6696 #if _FFR_SM_LDAP_DBG
6697 # if LDAPMAP && defined(LBER_OPT_LOG_PRINT_FN)
6698 /* LDAP debugging */
6699 "_FFR_SM_LDAP_DBG",
6700 # else
6701 # ERROR: FFR_SM_LDAP_DBG requires _LDAPMAP and LBER_OPT_LOG_PRINT_FN
6702 # endif
6703 #endif
6704 #if _FFR_SPT_ALIGN
6705 /*
6706 ** It looks like the Compaq Tru64 5.1A now aligns argv and envp to 64
6707 ** bit alignment, so unless each piece of argv and envp is a multiple
6708 ** of 8 bytes (including terminating NULL), initsetproctitle() won't
6709 ** use any of the space beyond argv[0]. Be sure to set SPT_ALIGN_SIZE
6710 ** if you use this FFR.
6711 */
6712
6713 /* Chris Adams of HiWAAY Informations Services */
6714 "_FFR_SPT_ALIGN",
6715 #endif
6716 #if _FFR_SS_PER_DAEMON
6717 /* SuperSafe per DaemonPortOptions: 'T' (better letter?) */
6718 "_FFR_SS_PER_DAEMON",
6719 #endif
6720 #if _FFR_TESTS
6721 /* enable some test code */
6722 "_FFR_TESTS",
6723 #endif
6724 #if _FFR_TIMERS
6725 /* Donated code (unused). */
6726 "_FFR_TIMERS",
6727 #endif
6728 #if _FFR_TLS_ALTNAMES
6729 /* store subjectAltNames in class {cert_altnames} */
6730 # if STARTTLS
6731 "_FFR_TLS_ALTNAMES",
6732 # else
6733 # error "_FFR_TLS_ALTNAMES set but STARTTLS not defined"
6734 # endif
6735 #endif
6736 #if _FFR_TLSFB2CLEAR
6737 /* set default for TLSFallbacktoClear to true */
6738 # if STARTTLS
6739 "_FFR_TLSFB2CLEAR",
6740 # else
6741 # error "_FFR_TLSFB2CLEAR set but STARTTLS not defined"
6742 # endif
6743 #endif
6744 #if _FFR_TLS_USE_CERTIFICATE_CHAIN_FILE
6745 /*
6746 ** Use SSL_CTX_use_certificate_chain_file()
6747 ** instead of SSL_CTX_use_certificate_file()
6748 */
6749
6750 # if STARTTLS
6751 "_FFR_TLS_USE_CERTIFICATE_CHAIN_FILE",
6752 # else
6753 # error "_FFR_TLS_USE_CERTIFICATE_CHAIN_FILE set but STARTTLS not defined"
6754 # endif
6755 #endif
6756 #if _FFR_TRUSTED_QF
6757 /*
6758 ** If we don't own the file mark it as unsafe.
6759 ** However, allow TrustedUser to own it as well
6760 ** in case TrustedUser manipulates the queue.
6761 */
6762
6763 "_FFR_TRUSTED_QF",
6764 #endif
6765 #if _FFR_USE_GETPWNAM_ERRNO
6766 /*
6767 ** See libsm/mbdb.c: only enable this on OSs
6768 ** that implement the correct (POSIX) semantics.
6769 ** This will need to become an OS-specific #if enabled
6770 ** in one of the headers files under include/sm/os/ .
6771 */
6772
6773 "_FFR_USE_GETPWNAM_ERRNO",
6774 #endif
6775 #if _FFR_VRFY_TRUSTED_FIRST
6776 /*
6777 ** Sets X509_V_FLAG_TRUSTED_FIRST if -d88;.101 is used.
6778 ** X509_VERIFY_PARAM_set_flags(3)
6779 ** When X509_V_FLAG_TRUSTED_FIRST is set, construction of the
6780 ** certificate chain in X509_verify_cert(3) will search the trust
6781 ** store for issuer certificates before searching the provided
6782 ** untrusted certificates. Local issuer certificates are often more
6783 ** likely to satisfy local security requirements and lead to a locally
6784 ** trusted root. This is especially important when some certificates
6785 ** in the trust store have explicit trust settings (see "TRUST
6786 ** SETTINGS" in x509(1)).
6787 ** As of OpenSSL 1.1.0 this option is on by default.
6788 */
6789
6790 # if defined(X509_V_FLAG_TRUSTED_FIRST)
6791 "_FFR_VRFY_TRUSTED_FIRST",
6792 # else
6793 # error "FFR_VRFY_TRUSTED_FIRST set but X509_V_FLAG_TRUSTED_FIRST not defined"
6794 # endif
6795 #endif
6796
6797 #if _FFR_USE_SEM_LOCKING
6798 /* Use semaphore locking */
6799 "_FFR_USE_SEM_LOCKING",
6800 #endif
6801 #if _FFR_USE_SETLOGIN
6802 /* Use setlogin() */
6803 /* Peter Philipp */
6804 "_FFR_USE_SETLOGIN",
6805 #endif
6806 #if _FFR_XCNCT
6807 /* X-Connect support */
6808 "_FFR_XCNCT",
6809 #endif
6810 #if _FFR_EAI
6811
6812 /*
6813 ** Initial/Partial/Experimental EAI (SMTPUTF8) support.
6814 ** NOTE: This is currently BROKEN as the handling of
6815 ** envelope addresses in sendmail is NOT 8-bit clean
6816 ** (in contrast to header addresses/values).
6817 ** Requires ICU include files and library depending on the OS.
6818 ** Patch from Arnt Gulbrandsen.
6819 */
6820
6821 # if !ALLOW_255
6822 # ERROR FFR_EAI requires _ALLOW_255
6823 # endif
6824 # if _FFR_EIGHT_BIT_ADDR_OK
6825 # error "Cannot enable both of these FFRs: FFR_EAI FFR_EIGHT_BIT_ADDR_OK"
6826 # endif
6827 "_FFR_EAI",
6828 #endif
6829 NULL
6830 };
6831