1 /* 2 * Copyright (c) 1983 Eric P. Allman 3 * Copyright (c) 1988, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * %sccs.include.redist.c% 7 */ 8 9 #ifndef lint 10 static char sccsid[] = "@(#)conf.c 8.150 (Berkeley) 04/07/95"; 11 #endif /* not lint */ 12 13 # include "sendmail.h" 14 # include "pathnames.h" 15 # include <sys/ioctl.h> 16 # include <sys/param.h> 17 18 /* 19 ** CONF.C -- Sendmail Configuration Tables. 20 ** 21 ** Defines the configuration of this installation. 22 ** 23 ** Configuration Variables: 24 ** HdrInfo -- a table describing well-known header fields. 25 ** Each entry has the field name and some flags, 26 ** which are described in sendmail.h. 27 ** 28 ** Notes: 29 ** I have tried to put almost all the reasonable 30 ** configuration information into the configuration 31 ** file read at runtime. My intent is that anything 32 ** here is a function of the version of UNIX you 33 ** are running, or is really static -- for example 34 ** the headers are a superset of widely used 35 ** protocols. If you find yourself playing with 36 ** this file too much, you may be making a mistake! 37 */ 38 39 40 41 42 /* 43 ** Header info table 44 ** Final (null) entry contains the flags used for any other field. 45 ** 46 ** Not all of these are actually handled specially by sendmail 47 ** at this time. They are included as placeholders, to let 48 ** you know that "someday" I intend to have sendmail do 49 ** something with them. 50 */ 51 52 struct hdrinfo HdrInfo[] = 53 { 54 /* originator fields, most to least significant */ 55 "resent-sender", H_FROM|H_RESENT, 56 "resent-from", H_FROM|H_RESENT, 57 "resent-reply-to", H_FROM|H_RESENT, 58 "sender", H_FROM, 59 "from", H_FROM, 60 "reply-to", H_FROM, 61 "full-name", H_ACHECK, 62 "return-receipt-to", H_FROM|H_RECEIPTTO, 63 "errors-to", H_FROM|H_ERRORSTO, 64 65 /* destination fields */ 66 "to", H_RCPT, 67 "resent-to", H_RCPT|H_RESENT, 68 "cc", H_RCPT, 69 "resent-cc", H_RCPT|H_RESENT, 70 "bcc", H_RCPT|H_STRIPVAL, 71 "resent-bcc", H_RCPT|H_STRIPVAL|H_RESENT, 72 "apparently-to", H_RCPT, 73 74 /* message identification and control */ 75 "message-id", 0, 76 "resent-message-id", H_RESENT, 77 "message", H_EOH, 78 "text", H_EOH, 79 80 /* date fields */ 81 "date", 0, 82 "resent-date", H_RESENT, 83 84 /* trace fields */ 85 "received", H_TRACE|H_FORCE, 86 "x400-received", H_TRACE|H_FORCE, 87 "via", H_TRACE|H_FORCE, 88 "mail-from", H_TRACE|H_FORCE, 89 90 /* miscellaneous fields */ 91 "comments", H_FORCE, 92 "return-path", H_FORCE|H_ACHECK, 93 "content-transfer-encoding", H_CTE, 94 "content-type", H_CTYPE, 95 "content-length", H_ACHECK, 96 97 NULL, 0, 98 }; 99 100 101 102 /* 103 ** Location of system files/databases/etc. 104 */ 105 106 char *PidFile = _PATH_SENDMAILPID; /* stores daemon proc id */ 107 108 109 110 /* 111 ** Privacy values 112 */ 113 114 struct prival PrivacyValues[] = 115 { 116 "public", PRIV_PUBLIC, 117 "needmailhelo", PRIV_NEEDMAILHELO, 118 "needexpnhelo", PRIV_NEEDEXPNHELO, 119 "needvrfyhelo", PRIV_NEEDVRFYHELO, 120 "noexpn", PRIV_NOEXPN, 121 "novrfy", PRIV_NOVRFY, 122 "restrictmailq", PRIV_RESTRICTMAILQ, 123 "restrictqrun", PRIV_RESTRICTQRUN, 124 "authwarnings", PRIV_AUTHWARNINGS, 125 "noreceipts", PRIV_NORECEIPTS, 126 "goaway", PRIV_GOAWAY, 127 NULL, 0, 128 }; 129 130 131 132 /* 133 ** Miscellaneous stuff. 134 */ 135 136 int DtableSize = 50; /* max open files; reset in 4.2bsd */ 137 /* 138 ** SETDEFAULTS -- set default values 139 ** 140 ** Because of the way freezing is done, these must be initialized 141 ** using direct code. 142 ** 143 ** Parameters: 144 ** e -- the default envelope. 145 ** 146 ** Returns: 147 ** none. 148 ** 149 ** Side Effects: 150 ** Initializes a bunch of global variables to their 151 ** default values. 152 */ 153 154 #define DAYS * 24 * 60 * 60 155 156 void 157 setdefaults(e) 158 register ENVELOPE *e; 159 { 160 int i; 161 extern void inittimeouts(); 162 extern void setdefuser(); 163 extern void setupmaps(); 164 extern void setupmailers(); 165 166 SpaceSub = ' '; /* option B */ 167 QueueLA = 8; /* option x */ 168 RefuseLA = 12; /* option X */ 169 WkRecipFact = 30000L; /* option y */ 170 WkClassFact = 1800L; /* option z */ 171 WkTimeFact = 90000L; /* option Z */ 172 QueueFactor = WkRecipFact * 20; /* option q */ 173 FileMode = (RealUid != geteuid()) ? 0644 : 0600; 174 /* option F */ 175 DefUid = 1; /* option u */ 176 DefGid = 1; /* option g */ 177 CheckpointInterval = 10; /* option C */ 178 MaxHopCount = 25; /* option h */ 179 e->e_sendmode = SM_FORK; /* option d */ 180 e->e_errormode = EM_PRINT; /* option e */ 181 SevenBitInput = FALSE; /* option 7 */ 182 MaxMciCache = 1; /* option k */ 183 MciCacheTimeout = 300; /* option K */ 184 LogLevel = 9; /* option L */ 185 inittimeouts(NULL); /* option r */ 186 PrivacyFlags = 0; /* option p */ 187 MimeMode = MM_CVTMIME|MM_PASS8BIT; /* option 8 */ 188 for (i = 0; i < MAXTOCLASS; i++) 189 { 190 TimeOuts.to_q_return[i] = 5 DAYS; /* option T */ 191 TimeOuts.to_q_warning[i] = 0; /* option T */ 192 } 193 ServiceSwitchFile = "/etc/service.switch"; 194 setdefuser(); 195 setupmaps(); 196 setupmailers(); 197 } 198 199 200 /* 201 ** SETDEFUSER -- set/reset DefUser using DefUid (for initgroups()) 202 */ 203 204 void 205 setdefuser() 206 { 207 struct passwd *defpwent; 208 static char defuserbuf[40]; 209 210 DefUser = defuserbuf; 211 if ((defpwent = sm_getpwuid(DefUid)) != NULL) 212 strcpy(defuserbuf, defpwent->pw_name); 213 else 214 strcpy(defuserbuf, "nobody"); 215 } 216 /* 217 ** HOST_MAP_INIT -- initialize host class structures 218 */ 219 220 bool host_map_init __P((MAP *map, char *args)); 221 222 bool 223 host_map_init(map, args) 224 MAP *map; 225 char *args; 226 { 227 register char *p = args; 228 229 for (;;) 230 { 231 while (isascii(*p) && isspace(*p)) 232 p++; 233 if (*p != '-') 234 break; 235 switch (*++p) 236 { 237 case 'a': 238 map->map_app = ++p; 239 break; 240 } 241 while (*p != '\0' && !(isascii(*p) && isspace(*p))) 242 p++; 243 if (*p != '\0') 244 *p++ = '\0'; 245 } 246 if (map->map_app != NULL) 247 map->map_app = newstr(map->map_app); 248 return TRUE; 249 } 250 /* 251 ** SETUPMAILERS -- initialize default mailers 252 */ 253 254 void 255 setupmailers() 256 { 257 char buf[100]; 258 extern void makemailer(); 259 260 strcpy(buf, "prog, P=/bin/sh, F=lsoD, A=sh -c $u"); 261 makemailer(buf); 262 263 strcpy(buf, "*file*, P=/dev/null, F=lsDFMPEou, A=FILE"); 264 makemailer(buf); 265 266 strcpy(buf, "*include*, P=/dev/null, F=su, A=INCLUDE"); 267 makemailer(buf); 268 } 269 /* 270 ** SETUPMAPS -- set up map classes 271 */ 272 273 #define MAPDEF(name, ext, flags, parse, open, close, lookup, store) \ 274 { \ 275 extern bool parse __P((MAP *, char *)); \ 276 extern bool open __P((MAP *, int)); \ 277 extern void close __P((MAP *)); \ 278 extern char *lookup __P((MAP *, char *, char **, int *)); \ 279 extern void store __P((MAP *, char *, char *)); \ 280 s = stab(name, ST_MAPCLASS, ST_ENTER); \ 281 s->s_mapclass.map_cname = name; \ 282 s->s_mapclass.map_ext = ext; \ 283 s->s_mapclass.map_cflags = flags; \ 284 s->s_mapclass.map_parse = parse; \ 285 s->s_mapclass.map_open = open; \ 286 s->s_mapclass.map_close = close; \ 287 s->s_mapclass.map_lookup = lookup; \ 288 s->s_mapclass.map_store = store; \ 289 } 290 291 void 292 setupmaps() 293 { 294 register STAB *s; 295 296 #ifdef NEWDB 297 MAPDEF("hash", ".db", MCF_ALIASOK|MCF_REBUILDABLE, 298 map_parseargs, hash_map_open, db_map_close, 299 db_map_lookup, db_map_store); 300 301 MAPDEF("btree", ".db", MCF_ALIASOK|MCF_REBUILDABLE, 302 map_parseargs, bt_map_open, db_map_close, 303 db_map_lookup, db_map_store); 304 #endif 305 306 #ifdef NDBM 307 MAPDEF("dbm", ".dir", MCF_ALIASOK|MCF_REBUILDABLE, 308 map_parseargs, ndbm_map_open, ndbm_map_close, 309 ndbm_map_lookup, ndbm_map_store); 310 #endif 311 312 #ifdef NIS 313 MAPDEF("nis", NULL, MCF_ALIASOK, 314 map_parseargs, nis_map_open, null_map_close, 315 nis_map_lookup, null_map_store); 316 #endif 317 318 #ifdef NISPLUS 319 MAPDEF("nisplus", NULL, MCF_ALIASOK, 320 map_parseargs, nisplus_map_open, null_map_close, 321 nisplus_map_lookup, null_map_store); 322 #endif 323 324 #ifdef HESIOD 325 MAPDEF("hesiod", NULL, MCF_ALIASOK|MCF_ALIASONLY, 326 map_parseargs, null_map_open, null_map_close, 327 hes_map_lookup, null_map_store); 328 #endif 329 330 #ifdef NETINFO 331 MAPDEF("netinfo", NULL, MCF_ALIASOK, 332 map_parseargs, ni_map_open, null_map_close, 333 ni_map_lookup, null_map_store); 334 #endif 335 336 #if 0 337 MAPDEF("dns", NULL, 0, 338 dns_map_init, null_map_open, null_map_close, 339 dns_map_lookup, null_map_store); 340 #endif 341 342 #if NAMED_BIND 343 /* best MX DNS lookup */ 344 MAPDEF("bestmx", NULL, MCF_OPTFILE, 345 map_parseargs, null_map_open, null_map_close, 346 bestmx_map_lookup, null_map_store); 347 #endif 348 349 MAPDEF("host", NULL, 0, 350 host_map_init, null_map_open, null_map_close, 351 host_map_lookup, null_map_store); 352 353 MAPDEF("text", NULL, MCF_ALIASOK, 354 map_parseargs, text_map_open, null_map_close, 355 text_map_lookup, null_map_store); 356 357 MAPDEF("stab", NULL, MCF_ALIASOK|MCF_ALIASONLY, 358 map_parseargs, stab_map_open, null_map_close, 359 stab_map_lookup, stab_map_store); 360 361 MAPDEF("implicit", NULL, MCF_ALIASOK|MCF_ALIASONLY|MCF_REBUILDABLE, 362 map_parseargs, impl_map_open, impl_map_close, 363 impl_map_lookup, impl_map_store); 364 365 /* access to system passwd file */ 366 MAPDEF("user", NULL, MCF_OPTFILE, 367 map_parseargs, user_map_open, null_map_close, 368 user_map_lookup, null_map_store); 369 370 /* dequote map */ 371 MAPDEF("dequote", NULL, 0, 372 dequote_init, null_map_open, null_map_close, 373 dequote_map, null_map_store); 374 375 #ifdef USERDB 376 /* user database */ 377 MAPDEF("userdb", ".db", 0, 378 map_parseargs, null_map_open, null_map_close, 379 udb_map_lookup, null_map_store); 380 #endif 381 382 /* sequenced maps */ 383 MAPDEF("sequence", NULL, MCF_ALIASOK, 384 seq_map_parse, null_map_open, null_map_close, 385 seq_map_lookup, seq_map_store); 386 387 /* switched interface to sequenced maps */ 388 MAPDEF("switch", NULL, MCF_ALIASOK, 389 map_parseargs, switch_map_open, null_map_close, 390 seq_map_lookup, seq_map_store); 391 } 392 393 #undef MAPDEF 394 /* 395 ** INITHOSTMAPS -- initial host-dependent maps 396 ** 397 ** This should act as an interface to any local service switch 398 ** provided by the host operating system. 399 ** 400 ** Parameters: 401 ** none 402 ** 403 ** Returns: 404 ** none 405 ** 406 ** Side Effects: 407 ** Should define maps "host" and "users" as necessary 408 ** for this OS. If they are not defined, they will get 409 ** a default value later. It should check to make sure 410 ** they are not defined first, since it's possible that 411 ** the config file has provided an override. 412 */ 413 414 void 415 inithostmaps() 416 { 417 register int i; 418 int nmaps; 419 char *maptype[MAXMAPSTACK]; 420 short mapreturn[MAXMAPACTIONS]; 421 char buf[MAXLINE]; 422 423 /* 424 ** Set up default hosts maps. 425 */ 426 427 #if 0 428 nmaps = switch_map_find("hosts", maptype, mapreturn); 429 for (i = 0; i < nmaps; i++) 430 { 431 if (strcmp(maptype[i], "files") == 0 && 432 stab("hosts.files", ST_MAP, ST_FIND) == NULL) 433 { 434 strcpy(buf, "hosts.files text -k 0 -v 1 /etc/hosts"); 435 makemapentry(buf); 436 } 437 #if NAMED_BIND 438 else if (strcmp(maptype[i], "dns") == 0 && 439 stab("hosts.dns", ST_MAP, ST_FIND) == NULL) 440 { 441 strcpy(buf, "hosts.dns dns A"); 442 makemapentry(buf); 443 } 444 #endif 445 #ifdef NISPLUS 446 else if (strcmp(maptype[i], "nisplus") == 0 && 447 stab("hosts.nisplus", ST_MAP, ST_FIND) == NULL) 448 { 449 strcpy(buf, "hosts.nisplus nisplus -k name -v address -d hosts.org_dir"); 450 makemapentry(buf); 451 } 452 #endif 453 #ifdef NIS 454 else if (strcmp(maptype[i], "nis") == 0 && 455 stab("hosts.nis", ST_MAP, ST_FIND) == NULL) 456 { 457 strcpy(buf, "hosts.nis nis -d -k 0 -v 1 hosts.byname"); 458 makemapentry(buf); 459 } 460 #endif 461 } 462 #endif 463 464 /* 465 ** Make sure we have a host map. 466 */ 467 468 if (stab("host", ST_MAP, ST_FIND) == NULL) 469 { 470 /* user didn't initialize: set up host map */ 471 strcpy(buf, "host host"); 472 #if NAMED_BIND 473 if (ConfigLevel >= 2) 474 strcat(buf, " -a."); 475 #endif 476 makemapentry(buf); 477 } 478 479 /* 480 ** Set up default aliases maps 481 */ 482 483 nmaps = switch_map_find("aliases", maptype, mapreturn); 484 for (i = 0; i < nmaps; i++) 485 { 486 if (strcmp(maptype[i], "files") == 0 && 487 stab("aliases.files", ST_MAP, ST_FIND) == NULL) 488 { 489 strcpy(buf, "aliases.files implicit /etc/aliases"); 490 makemapentry(buf); 491 } 492 #ifdef NISPLUS 493 else if (strcmp(maptype[i], "nisplus") == 0 && 494 stab("aliases.nisplus", ST_MAP, ST_FIND) == NULL) 495 { 496 strcpy(buf, "aliases.nisplus nisplus -kalias -vexpansion -d mail_aliases.org_dir"); 497 makemapentry(buf); 498 } 499 #endif 500 #ifdef NIS 501 else if (strcmp(maptype[i], "nis") == 0 && 502 stab("aliases.nis", ST_MAP, ST_FIND) == NULL) 503 { 504 strcpy(buf, "aliases.nis nis -d mail.aliases"); 505 makemapentry(buf); 506 } 507 #endif 508 } 509 if (stab("aliases", ST_MAP, ST_FIND) == NULL) 510 { 511 strcpy(buf, "aliases switch aliases"); 512 makemapentry(buf); 513 } 514 strcpy(buf, "switch:aliases"); 515 setalias(buf); 516 517 #if 0 /* "user" map class is a better choice */ 518 /* 519 ** Set up default users maps. 520 */ 521 522 nmaps = switch_map_find("passwd", maptype, mapreturn); 523 for (i = 0; i < nmaps; i++) 524 { 525 if (strcmp(maptype[i], "files") == 0 && 526 stab("users.files", ST_MAP, ST_FIND) == NULL) 527 { 528 strcpy(buf, "users.files text -m -z: -k0 -v6 /etc/passwd"); 529 makemapentry(buf); 530 } 531 #ifdef NISPLUS 532 else if (strcmp(maptype[i], "nisplus") == 0 && 533 stab("users.nisplus", ST_MAP, ST_FIND) == NULL) 534 { 535 strcpy(buf, "users.nisplus nisplus -m -kname -vhome -d passwd.org_dir"); 536 makemapentry(buf); 537 } 538 #endif 539 #ifdef NIS 540 else if (strcmp(maptype[i], "nis") == 0 && 541 stab("users.nis", ST_MAP, ST_FIND) == NULL) 542 { 543 strcpy(buf, "users.nis nis -m -d passwd.byname"); 544 makemapentry(buf); 545 } 546 #endif 547 #ifdef HESIOD 548 else if (strcmp(maptype[i], "hesiod") == 0) && 549 stab("users.hesiod", ST_MAP, ST_FIND) == NULL) 550 { 551 strcpy(buf, "users.hesiod hesiod"); 552 makemapentry(buf); 553 } 554 #endif 555 } 556 if (stab("users", ST_MAP, ST_FIND) == NULL) 557 { 558 strcpy(buf, "users switch -m passwd"); 559 makemapentry(buf); 560 } 561 #endif 562 } 563 /* 564 ** SWITCH_MAP_FIND -- find the list of types associated with a map 565 ** 566 ** This is the system-dependent interface to the service switch. 567 ** 568 ** Parameters: 569 ** service -- the name of the service of interest. 570 ** maptype -- an out-array of strings containing the types 571 ** of access to use for this service. There can 572 ** be at most MAXMAPSTACK types for a single service. 573 ** mapreturn -- an out-array of return information bitmaps 574 ** for the map. 575 ** 576 ** Returns: 577 ** The number of map types filled in, or -1 for failure. 578 */ 579 580 #ifdef SOLARIS 581 # include <nsswitch.h> 582 #endif 583 584 #if defined(ultrix) || defined(__osf__) 585 # include <sys/svcinfo.h> 586 #endif 587 588 int 589 switch_map_find(service, maptype, mapreturn) 590 char *service; 591 char *maptype[MAXMAPSTACK]; 592 short mapreturn[MAXMAPACTIONS]; 593 { 594 register FILE *fp; 595 int svcno; 596 static char buf[MAXLINE]; 597 598 #ifdef SOLARIS 599 struct __nsw_switchconfig *nsw_conf; 600 enum __nsw_parse_err pserr; 601 struct __nsw_lookup *lk; 602 int nsw_rc; 603 static struct __nsw_lookup lkp0 = 604 { "files", {1, 0, 0, 0}, NULL, NULL }; 605 static struct __nsw_switchconfig lkp_default = 606 { 0, "sendmail", 3, &lkp0 }; 607 608 if ((nsw_conf = __nsw_getconfig(service, &pserr)) == NULL) 609 lk = lkp_default.lookups; 610 else 611 lk = nsw_conf->lookups; 612 svcno = 0; 613 while (lk != NULL) 614 { 615 maptype[svcno] = lk->service_name; 616 if (lk->actions[__NSW_NOTFOUND] == __NSW_RETURN) 617 mapreturn[MA_NOTFOUND] |= 1 << svcno; 618 if (lk->actions[__NSW_TRYAGAIN] == __NSW_RETURN) 619 mapreturn[MA_TRYAGAIN] |= 1 << svcno; 620 if (lk->actions[__NSW_UNAVAIL] == __NSW_RETURN) 621 mapreturn[MA_TRYAGAIN] |= 1 << svcno; 622 svcno++; 623 lk = lk->next; 624 } 625 return svcno; 626 #endif 627 628 #if defined(ultrix) || defined(__osf__) 629 struct svcinfo *svcinfo; 630 int svc; 631 632 svcinfo = getsvc(); 633 if (svcinfo == NULL) 634 goto punt; 635 if (strcmp(service, "hosts") == 0) 636 svc = SVC_HOSTS; 637 else if (strcmp(service, "aliases") == 0) 638 svc = SVC_ALIASES; 639 else if (strcmp(service, "passwd") == 0) 640 svc = SVC_PASSWD; 641 else 642 return -1; 643 for (svcno = 0; svcno < SVC_PATHSIZE; svcno++) 644 { 645 switch (svcinfo->svcpath[svc][svcno]) 646 { 647 case SVC_LOCAL: 648 maptype[svcno] = "files"; 649 break; 650 651 case SVC_YP: 652 maptype[svcno] = "nis"; 653 break; 654 655 case SVC_BIND: 656 maptype[svcno] = "dns"; 657 break; 658 659 #ifdef SVC_HESIOD 660 case SVC_HESIOD: 661 maptype[svcno] = "hesiod"; 662 break; 663 #endif 664 665 case SVC_LAST: 666 return svcno; 667 } 668 } 669 return svcno; 670 #endif 671 672 #if !defined(SOLARIS) && !defined(ultrix) && !defined(__osf__) 673 /* 674 ** Fall-back mechanism. 675 */ 676 677 svcno = 0; 678 fp = fopen(ServiceSwitchFile, "r"); 679 if (fp != NULL) 680 { 681 while (fgets(buf, sizeof buf, fp) != NULL) 682 { 683 register char *p; 684 685 p = strpbrk(buf, "#\n"); 686 if (p != NULL) 687 *p = '\0'; 688 p = strpbrk(buf, " \t"); 689 if (p != NULL) 690 *p++ = '\0'; 691 if (strcmp(buf, service) != 0) 692 continue; 693 694 /* got the right service -- extract data */ 695 do 696 { 697 while (isspace(*p)) 698 p++; 699 if (*p == '\0') 700 break; 701 maptype[svcno++] = p; 702 p = strpbrk(p, " \t"); 703 if (p != NULL) 704 *p++ = '\0'; 705 } while (p != NULL); 706 break; 707 } 708 fclose(fp); 709 return svcno; 710 } 711 #endif 712 713 /* if the service file doesn't work, use an absolute fallback */ 714 punt: 715 if (strcmp(service, "aliases") == 0) 716 { 717 maptype[svcno++] = "files"; 718 #ifdef AUTO_NIS_ALIASES 719 # ifdef NISPLUS 720 maptype[svcno++] = "nisplus"; 721 # endif 722 # ifdef NIS 723 maptype[svcno++] = "nis"; 724 # endif 725 #endif 726 return svcno; 727 } 728 if (strcmp(service, "hosts") == 0) 729 { 730 # if NAMED_BIND 731 maptype[svcno++] = "dns"; 732 # else 733 # if defined(sun) && !defined(BSD) && !defined(SOLARIS) 734 /* SunOS */ 735 maptype[svcno++] = "nis"; 736 # endif 737 # endif 738 maptype[svcno++] = "files"; 739 return svcno; 740 } 741 return -1; 742 } 743 /* 744 ** USERNAME -- return the user id of the logged in user. 745 ** 746 ** Parameters: 747 ** none. 748 ** 749 ** Returns: 750 ** The login name of the logged in user. 751 ** 752 ** Side Effects: 753 ** none. 754 ** 755 ** Notes: 756 ** The return value is statically allocated. 757 */ 758 759 char * 760 username() 761 { 762 static char *myname = NULL; 763 extern char *getlogin(); 764 register struct passwd *pw; 765 766 /* cache the result */ 767 if (myname == NULL) 768 { 769 myname = getlogin(); 770 if (myname == NULL || myname[0] == '\0') 771 { 772 pw = sm_getpwuid(RealUid); 773 if (pw != NULL) 774 myname = newstr(pw->pw_name); 775 } 776 else 777 { 778 uid_t uid = RealUid; 779 780 myname = newstr(myname); 781 if ((pw = sm_getpwnam(myname)) == NULL || 782 (uid != 0 && uid != pw->pw_uid)) 783 { 784 pw = sm_getpwuid(uid); 785 if (pw != NULL) 786 myname = newstr(pw->pw_name); 787 } 788 } 789 if (myname == NULL || myname[0] == '\0') 790 { 791 syserr("554 Who are you?"); 792 myname = "postmaster"; 793 } 794 } 795 796 return (myname); 797 } 798 /* 799 ** TTYPATH -- Get the path of the user's tty 800 ** 801 ** Returns the pathname of the user's tty. Returns NULL if 802 ** the user is not logged in or if s/he has write permission 803 ** denied. 804 ** 805 ** Parameters: 806 ** none 807 ** 808 ** Returns: 809 ** pathname of the user's tty. 810 ** NULL if not logged in or write permission denied. 811 ** 812 ** Side Effects: 813 ** none. 814 ** 815 ** WARNING: 816 ** Return value is in a local buffer. 817 ** 818 ** Called By: 819 ** savemail 820 */ 821 822 char * 823 ttypath() 824 { 825 struct stat stbuf; 826 register char *pathn; 827 extern char *ttyname(); 828 extern char *getlogin(); 829 830 /* compute the pathname of the controlling tty */ 831 if ((pathn = ttyname(2)) == NULL && (pathn = ttyname(1)) == NULL && 832 (pathn = ttyname(0)) == NULL) 833 { 834 errno = 0; 835 return (NULL); 836 } 837 838 /* see if we have write permission */ 839 if (stat(pathn, &stbuf) < 0 || !bitset(02, stbuf.st_mode)) 840 { 841 errno = 0; 842 return (NULL); 843 } 844 845 /* see if the user is logged in */ 846 if (getlogin() == NULL) 847 return (NULL); 848 849 /* looks good */ 850 return (pathn); 851 } 852 /* 853 ** CHECKCOMPAT -- check for From and To person compatible. 854 ** 855 ** This routine can be supplied on a per-installation basis 856 ** to determine whether a person is allowed to send a message. 857 ** This allows restriction of certain types of internet 858 ** forwarding or registration of users. 859 ** 860 ** If the hosts are found to be incompatible, an error 861 ** message should be given using "usrerr" and 0 should 862 ** be returned. 863 ** 864 ** EF_NO_BODY_RETN can be set in e->e_flags to suppress the 865 ** body during the return-to-sender function; this should be done 866 ** on huge messages. This bit may already be set by the ESMTP 867 ** protocol. 868 ** 869 ** Parameters: 870 ** to -- the person being sent to. 871 ** 872 ** Returns: 873 ** an exit status 874 ** 875 ** Side Effects: 876 ** none (unless you include the usrerr stuff) 877 */ 878 879 int 880 checkcompat(to, e) 881 register ADDRESS *to; 882 register ENVELOPE *e; 883 { 884 # ifdef lint 885 if (to == NULL) 886 to++; 887 # endif /* lint */ 888 889 if (tTd(49, 1)) 890 printf("checkcompat(to=%s, from=%s)\n", 891 to->q_paddr, e->e_from.q_paddr); 892 893 # ifdef EXAMPLE_CODE 894 /* this code is intended as an example only */ 895 register STAB *s; 896 897 s = stab("arpa", ST_MAILER, ST_FIND); 898 if (s != NULL && strcmp(e->e_from.q_mailer->m_name, "local") != 0 && 899 to->q_mailer == s->s_mailer) 900 { 901 usrerr("553 No ARPA mail through this machine: see your system administration"); 902 /* e->e_flags |= EF_NO_BODY_RETN; to supress body on return */ 903 return (EX_UNAVAILABLE); 904 } 905 # endif /* EXAMPLE_CODE */ 906 return (EX_OK); 907 } 908 /* 909 ** SETSIGNAL -- set a signal handler 910 ** 911 ** This is essentially old BSD "signal(3)". 912 */ 913 914 sigfunc_t 915 setsignal(sig, handler) 916 int sig; 917 sigfunc_t handler; 918 { 919 #if defined(SYS5SIGNALS) || defined(BSD4_3) || defined(_AUX_SOURCE) 920 return signal(sig, handler); 921 #else 922 struct sigaction n, o; 923 924 bzero(&n, sizeof n); 925 n.sa_handler = handler; 926 # ifdef SA_RESTART 927 n.sa_flags = SA_RESTART; 928 # endif 929 if (sigaction(sig, &n, &o) < 0) 930 return SIG_ERR; 931 return o.sa_handler; 932 #endif 933 } 934 /* 935 ** HOLDSIGS -- arrange to hold all signals 936 ** 937 ** Parameters: 938 ** none. 939 ** 940 ** Returns: 941 ** none. 942 ** 943 ** Side Effects: 944 ** Arranges that signals are held. 945 */ 946 947 void 948 holdsigs() 949 { 950 } 951 /* 952 ** RLSESIGS -- arrange to release all signals 953 ** 954 ** This undoes the effect of holdsigs. 955 ** 956 ** Parameters: 957 ** none. 958 ** 959 ** Returns: 960 ** none. 961 ** 962 ** Side Effects: 963 ** Arranges that signals are released. 964 */ 965 966 void 967 rlsesigs() 968 { 969 } 970 /* 971 ** INIT_MD -- do machine dependent initializations 972 ** 973 ** Systems that have global modes that should be set should do 974 ** them here rather than in main. 975 */ 976 977 #ifdef _AUX_SOURCE 978 # include <compat.h> 979 #endif 980 981 void 982 init_md(argc, argv) 983 int argc; 984 char **argv; 985 { 986 #ifdef _AUX_SOURCE 987 setcompat(getcompat() | COMPAT_BSDPROT); 988 #endif 989 990 #ifdef VENDOR_DEFAULT 991 VendorCode = VENDOR_DEFAULT; 992 #else 993 VendorCode = VENDOR_BERKELEY; 994 #endif 995 } 996 /* 997 ** INIT_VENDOR_MACROS -- vendor-dependent macro initializations 998 ** 999 ** Called once, on startup. 1000 ** 1001 ** Parameters: 1002 ** e -- the global envelope. 1003 ** 1004 ** Returns: 1005 ** none. 1006 ** 1007 ** Side Effects: 1008 ** vendor-dependent. 1009 */ 1010 1011 void 1012 init_vendor_macros(e) 1013 register ENVELOPE *e; 1014 { 1015 } 1016 /* 1017 ** GETLA -- get the current load average 1018 ** 1019 ** This code stolen from la.c. 1020 ** 1021 ** Parameters: 1022 ** none. 1023 ** 1024 ** Returns: 1025 ** The current load average as an integer. 1026 ** 1027 ** Side Effects: 1028 ** none. 1029 */ 1030 1031 /* try to guess what style of load average we have */ 1032 #define LA_ZERO 1 /* always return load average as zero */ 1033 #define LA_INT 2 /* read kmem for avenrun; interpret as long */ 1034 #define LA_FLOAT 3 /* read kmem for avenrun; interpret as float */ 1035 #define LA_SUBR 4 /* call getloadavg */ 1036 #define LA_MACH 5 /* MACH load averages (as on NeXT boxes) */ 1037 #define LA_SHORT 6 /* read kmem for avenrun; interpret as short */ 1038 #define LA_PROCSTR 7 /* read string ("1.17") from /proc/loadavg */ 1039 1040 /* do guesses based on general OS type */ 1041 #ifndef LA_TYPE 1042 # define LA_TYPE LA_ZERO 1043 #endif 1044 1045 #if (LA_TYPE == LA_INT) || (LA_TYPE == LA_FLOAT) || (LA_TYPE == LA_SHORT) 1046 1047 #include <nlist.h> 1048 1049 #ifdef IRIX64 1050 # define nlist nlist64 1051 #endif 1052 1053 #ifndef LA_AVENRUN 1054 # ifdef SYSTEM5 1055 # define LA_AVENRUN "avenrun" 1056 # else 1057 # define LA_AVENRUN "_avenrun" 1058 # endif 1059 #endif 1060 1061 /* _PATH_UNIX should be defined in <paths.h> */ 1062 #ifndef _PATH_UNIX 1063 # if defined(SYSTEM5) 1064 # define _PATH_UNIX "/unix" 1065 # else 1066 # define _PATH_UNIX "/vmunix" 1067 # endif 1068 #endif 1069 1070 struct nlist Nl[] = 1071 { 1072 { LA_AVENRUN }, 1073 #define X_AVENRUN 0 1074 { 0 }, 1075 }; 1076 1077 #ifndef FSHIFT 1078 # if defined(unixpc) 1079 # define FSHIFT 5 1080 # endif 1081 1082 # if defined(__alpha) || defined(IRIX) 1083 # define FSHIFT 10 1084 # endif 1085 1086 # if defined(_AIX3) 1087 # define FSHIFT 16 1088 # endif 1089 #endif 1090 1091 #ifndef FSHIFT 1092 # define FSHIFT 8 1093 #endif 1094 1095 #ifndef FSCALE 1096 # define FSCALE (1 << FSHIFT) 1097 #endif 1098 1099 getla() 1100 { 1101 static int kmem = -1; 1102 #if LA_TYPE == LA_INT 1103 long avenrun[3]; 1104 #else 1105 # if LA_TYPE == LA_SHORT 1106 short avenrun[3]; 1107 # else 1108 double avenrun[3]; 1109 # endif 1110 #endif 1111 extern off_t lseek(); 1112 extern int errno; 1113 1114 if (kmem < 0) 1115 { 1116 kmem = open("/dev/kmem", 0, 0); 1117 if (kmem < 0) 1118 { 1119 if (tTd(3, 1)) 1120 printf("getla: open(/dev/kmem): %s\n", 1121 errstring(errno)); 1122 return (-1); 1123 } 1124 (void) fcntl(kmem, F_SETFD, 1); 1125 #ifdef _AIX3 1126 if (knlist(Nl, 1, sizeof Nl[0]) < 0) 1127 #else 1128 if (nlist(_PATH_UNIX, Nl) < 0) 1129 #endif 1130 { 1131 if (tTd(3, 1)) 1132 printf("getla: nlist(%s): %s\n", _PATH_UNIX, 1133 errstring(errno)); 1134 return (-1); 1135 } 1136 if (Nl[X_AVENRUN].n_value == 0) 1137 { 1138 if (tTd(3, 1)) 1139 printf("getla: nlist(%s, %s) ==> 0\n", 1140 _PATH_UNIX, LA_AVENRUN); 1141 return (-1); 1142 } 1143 #ifdef NAMELISTMASK 1144 Nl[X_AVENRUN].n_value &= NAMELISTMASK; 1145 #endif 1146 } 1147 if (tTd(3, 20)) 1148 printf("getla: symbol address = %#x\n", Nl[X_AVENRUN].n_value); 1149 if (lseek(kmem, (off_t) Nl[X_AVENRUN].n_value, SEEK_SET) == -1 || 1150 read(kmem, (char *) avenrun, sizeof(avenrun)) < sizeof(avenrun)) 1151 { 1152 /* thank you Ian */ 1153 if (tTd(3, 1)) 1154 printf("getla: lseek or read: %s\n", errstring(errno)); 1155 return (-1); 1156 } 1157 #if (LA_TYPE == LA_INT) || (LA_TYPE == LA_SHORT) 1158 if (tTd(3, 5)) 1159 { 1160 printf("getla: avenrun = %d", avenrun[0]); 1161 if (tTd(3, 15)) 1162 printf(", %d, %d", avenrun[1], avenrun[2]); 1163 printf("\n"); 1164 } 1165 if (tTd(3, 1)) 1166 printf("getla: %d\n", (int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1167 return ((int) (avenrun[0] + FSCALE/2) >> FSHIFT); 1168 #else 1169 if (tTd(3, 5)) 1170 { 1171 printf("getla: avenrun = %g", avenrun[0]); 1172 if (tTd(3, 15)) 1173 printf(", %g, %g", avenrun[1], avenrun[2]); 1174 printf("\n"); 1175 } 1176 if (tTd(3, 1)) 1177 printf("getla: %d\n", (int) (avenrun[0] +0.5)); 1178 return ((int) (avenrun[0] + 0.5)); 1179 #endif 1180 } 1181 1182 #else 1183 #if LA_TYPE == LA_SUBR 1184 1185 #ifdef DGUX 1186 1187 #include <sys/dg_sys_info.h> 1188 1189 int 1190 getla() 1191 { 1192 struct dg_sys_info_load_info load_info; 1193 1194 dg_sys_info((long *)&load_info, 1195 DG_SYS_INFO_LOAD_INFO_TYPE, DG_SYS_INFO_LOAD_VERSION_0); 1196 1197 if (tTd(3, 1)) 1198 printf("getla: %d\n", (int) (load_info.one_minute + 0.5)); 1199 1200 return((int) (load_info.one_minute + 0.5)); 1201 } 1202 1203 #else 1204 # ifdef __hpux 1205 1206 # include <sys/param.h> 1207 # include <sys/pstat.h> 1208 1209 int 1210 getla() 1211 { 1212 struct pst_dynamic pstd; 1213 1214 if (pstat_getdynamic(&pstd, sizeof(struct pst_dynamic), 1215 (size_t) 1 ,0) == -1) 1216 return 0; 1217 1218 if (tTd(3, 1)) 1219 printf("getla: %d\n", (int) (pstd.psd_avg_1_min + 0.5)); 1220 1221 return (int) (pstd.psd_avg_1_min + 0.5); 1222 } 1223 1224 # else 1225 1226 int 1227 getla() 1228 { 1229 double avenrun[3]; 1230 1231 if (getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0])) < 0) 1232 { 1233 if (tTd(3, 1)) 1234 perror("getla: getloadavg failed:"); 1235 return (-1); 1236 } 1237 if (tTd(3, 1)) 1238 printf("getla: %d\n", (int) (avenrun[0] +0.5)); 1239 return ((int) (avenrun[0] + 0.5)); 1240 } 1241 1242 # endif /* __hpux */ 1243 #endif /* DGUX */ 1244 #else 1245 #if LA_TYPE == LA_MACH 1246 1247 /* 1248 ** This has been tested on NEXTSTEP release 2.1/3.X. 1249 */ 1250 1251 #if defined(NX_CURRENT_COMPILER_RELEASE) && NX_CURRENT_COMPILER_RELEASE > NX_COMPILER_RELEASE_3_0 1252 # include <mach/mach.h> 1253 #else 1254 # include <mach.h> 1255 #endif 1256 1257 getla() 1258 { 1259 processor_set_t default_set; 1260 kern_return_t error; 1261 unsigned int info_count; 1262 struct processor_set_basic_info info; 1263 host_t host; 1264 1265 error = processor_set_default(host_self(), &default_set); 1266 if (error != KERN_SUCCESS) 1267 return -1; 1268 info_count = PROCESSOR_SET_BASIC_INFO_COUNT; 1269 if (processor_set_info(default_set, PROCESSOR_SET_BASIC_INFO, 1270 &host, (processor_set_info_t)&info, 1271 &info_count) != KERN_SUCCESS) 1272 { 1273 return -1; 1274 } 1275 return (int) (info.load_average + (LOAD_SCALE / 2)) / LOAD_SCALE; 1276 } 1277 1278 1279 #else 1280 #if LA_TYPE == LA_PROCSTR 1281 1282 /* 1283 ** Read /proc/loadavg for the load average. This is assumed to be 1284 ** in a format like "0.15 0.12 0.06". 1285 ** 1286 ** Initially intended for Linux. This has been in the kernel 1287 ** since at least 0.99.15. 1288 */ 1289 1290 # ifndef _PATH_LOADAVG 1291 # define _PATH_LOADAVG "/proc/loadavg" 1292 # endif 1293 1294 int 1295 getla() 1296 { 1297 double avenrun; 1298 register int result; 1299 FILE *fp; 1300 1301 fp = fopen(_PATH_LOADAVG, "r"); 1302 if (fp == NULL) 1303 { 1304 if (tTd(3, 1)) 1305 printf("getla: fopen(%s): %s\n", 1306 _PATH_LOADAVG, errstring(errno)); 1307 return -1; 1308 } 1309 result = fscanf(fp, "%lf", &avenrun); 1310 fclose(fp); 1311 if (result != 1) 1312 { 1313 if (tTd(3, 1)) 1314 printf("getla: fscanf() = %d: %s\n", 1315 result, errstring(errno)); 1316 return -1; 1317 } 1318 1319 if (tTd(3, 1)) 1320 printf("getla(): %.2f\n", avenrun); 1321 1322 return ((int) (avenrun + 0.5)); 1323 } 1324 1325 #else 1326 1327 getla() 1328 { 1329 if (tTd(3, 1)) 1330 printf("getla: ZERO\n"); 1331 return (0); 1332 } 1333 1334 #endif 1335 #endif 1336 #endif 1337 #endif 1338 1339 1340 /* 1341 * Copyright 1989 Massachusetts Institute of Technology 1342 * 1343 * Permission to use, copy, modify, distribute, and sell this software and its 1344 * documentation for any purpose is hereby granted without fee, provided that 1345 * the above copyright notice appear in all copies and that both that 1346 * copyright notice and this permission notice appear in supporting 1347 * documentation, and that the name of M.I.T. not be used in advertising or 1348 * publicity pertaining to distribution of the software without specific, 1349 * written prior permission. M.I.T. makes no representations about the 1350 * suitability of this software for any purpose. It is provided "as is" 1351 * without express or implied warranty. 1352 * 1353 * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL 1354 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T. 1355 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1356 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 1357 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 1358 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1359 * 1360 * Authors: Many and varied... 1361 */ 1362 1363 /* Non Apollo stuff removed by Don Lewis 11/15/93 */ 1364 #ifndef lint 1365 static char rcsid[] = "@(#)$Id: getloadavg.c,v 1.16 1991/06/21 12:51:15 paul Exp $"; 1366 #endif /* !lint */ 1367 1368 #ifdef apollo 1369 # undef volatile 1370 # include <apollo/base.h> 1371 1372 /* ARGSUSED */ 1373 int getloadavg( call_data ) 1374 caddr_t call_data; /* pointer to (double) return value */ 1375 { 1376 double *avenrun = (double *) call_data; 1377 int i; 1378 status_$t st; 1379 long loadav[3]; 1380 proc1_$get_loadav(loadav, &st); 1381 *avenrun = loadav[0] / (double) (1 << 16); 1382 return(0); 1383 } 1384 # endif /* apollo */ 1385 /* 1386 ** SHOULDQUEUE -- should this message be queued or sent? 1387 ** 1388 ** Compares the message cost to the load average to decide. 1389 ** 1390 ** Parameters: 1391 ** pri -- the priority of the message in question. 1392 ** ctime -- the message creation time. 1393 ** 1394 ** Returns: 1395 ** TRUE -- if this message should be queued up for the 1396 ** time being. 1397 ** FALSE -- if the load is low enough to send this message. 1398 ** 1399 ** Side Effects: 1400 ** none. 1401 */ 1402 1403 bool 1404 shouldqueue(pri, ctime) 1405 long pri; 1406 time_t ctime; 1407 { 1408 bool rval; 1409 1410 if (tTd(3, 30)) 1411 printf("shouldqueue: CurrentLA=%d, pri=%d: ", CurrentLA, pri); 1412 if (CurrentLA < QueueLA) 1413 { 1414 if (tTd(3, 30)) 1415 printf("FALSE (CurrentLA < QueueLA)\n"); 1416 return (FALSE); 1417 } 1418 if (CurrentLA >= RefuseLA) 1419 { 1420 if (tTd(3, 30)) 1421 printf("TRUE (CurrentLA >= RefuseLA)\n"); 1422 return (TRUE); 1423 } 1424 rval = pri > (QueueFactor / (CurrentLA - QueueLA + 1)); 1425 if (tTd(3, 30)) 1426 printf("%s (by calculation)\n", rval ? "TRUE" : "FALSE"); 1427 return rval; 1428 } 1429 /* 1430 ** REFUSECONNECTIONS -- decide if connections should be refused 1431 ** 1432 ** Parameters: 1433 ** none. 1434 ** 1435 ** Returns: 1436 ** TRUE if incoming SMTP connections should be refused 1437 ** (for now). 1438 ** FALSE if we should accept new work. 1439 ** 1440 ** Side Effects: 1441 ** none. 1442 */ 1443 1444 bool 1445 refuseconnections() 1446 { 1447 extern bool enoughspace(); 1448 1449 #ifdef XLA 1450 if (!xla_smtp_ok()) 1451 return TRUE; 1452 #endif 1453 1454 /* this is probably too simplistic */ 1455 return CurrentLA >= RefuseLA || !enoughspace(MinBlocksFree + 1); 1456 } 1457 /* 1458 ** SETPROCTITLE -- set process title for ps 1459 ** 1460 ** Parameters: 1461 ** fmt -- a printf style format string. 1462 ** a, b, c -- possible parameters to fmt. 1463 ** 1464 ** Returns: 1465 ** none. 1466 ** 1467 ** Side Effects: 1468 ** Clobbers argv of our main procedure so ps(1) will 1469 ** display the title. 1470 */ 1471 1472 #define SPT_NONE 0 /* don't use it at all */ 1473 #define SPT_REUSEARGV 1 /* cover argv with title information */ 1474 #define SPT_BUILTIN 2 /* use libc builtin */ 1475 #define SPT_PSTAT 3 /* use pstat(PSTAT_SETCMD, ...) */ 1476 #define SPT_PSSTRINGS 4 /* use PS_STRINGS->... */ 1477 #define SPT_WRITEUDOT 5 /* write u. area in kmem */ 1478 1479 #ifndef SPT_TYPE 1480 # define SPT_TYPE SPT_REUSEARGV 1481 #endif 1482 1483 #if SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN 1484 1485 # if SPT_TYPE == SPT_PSTAT 1486 # include <sys/pstat.h> 1487 # endif 1488 # if SPT_TYPE == SPT_PSSTRINGS 1489 # include <machine/vmparam.h> 1490 # include <sys/exec.h> 1491 # ifndef PS_STRINGS /* hmmmm.... apparently not available after all */ 1492 # undef SPT_TYPE 1493 # define SPT_TYPE SPT_REUSEARGV 1494 # else 1495 # ifndef NKPDE /* FreeBSD 2.0 */ 1496 # define NKPDE 63 1497 typedef unsigned int *pt_entry_t; 1498 # endif 1499 # endif 1500 # endif 1501 1502 # if SPT_TYPE == SPT_PSSTRINGS 1503 # define SETPROC_STATIC static 1504 # else 1505 # define SETPROC_STATIC 1506 # endif 1507 1508 # ifndef SPT_PADCHAR 1509 # define SPT_PADCHAR ' ' 1510 # endif 1511 1512 #endif /* SPT_TYPE != SPT_NONE && SPT_TYPE != SPT_BUILTIN */ 1513 1514 #if SPT_TYPE != SPT_BUILTIN 1515 1516 /*VARARGS1*/ 1517 void 1518 # ifdef __STDC__ 1519 setproctitle(char *fmt, ...) 1520 # else 1521 setproctitle(fmt, va_alist) 1522 char *fmt; 1523 va_dcl 1524 # endif 1525 { 1526 # if SPT_TYPE != SPT_NONE 1527 register char *p; 1528 register int i; 1529 SETPROC_STATIC char buf[MAXLINE]; 1530 VA_LOCAL_DECL 1531 # if SPT_TYPE == SPT_PSTAT 1532 union pstun pst; 1533 # endif 1534 extern char **Argv; 1535 extern char *LastArgv; 1536 1537 p = buf; 1538 1539 /* print sendmail: heading for grep */ 1540 (void) strcpy(p, "sendmail: "); 1541 p += strlen(p); 1542 1543 /* print the argument string */ 1544 VA_START(fmt); 1545 (void) vsprintf(p, fmt, ap); 1546 VA_END; 1547 1548 i = strlen(buf); 1549 1550 # if SPT_TYPE == SPT_PSTAT 1551 pst.pst_command = buf; 1552 pstat(PSTAT_SETCMD, pst, i, 0, 0); 1553 # else 1554 # if SPT_TYPE == SPT_PSSTRINGS 1555 PS_STRINGS->ps_nargvstr = 1; 1556 PS_STRINGS->ps_argvstr = buf; 1557 # else 1558 if (i > LastArgv - Argv[0] - 2) 1559 { 1560 i = LastArgv - Argv[0] - 2; 1561 buf[i] = '\0'; 1562 } 1563 (void) strcpy(Argv[0], buf); 1564 p = &Argv[0][i]; 1565 while (p < LastArgv) 1566 *p++ = SPT_PADCHAR; 1567 Argv[1] = NULL; 1568 # endif /* SPT_TYPE == SPT_PSSTRINGS */ 1569 # endif /* SPT_TYPE == SPT_PSTAT */ 1570 # endif /* SPT_TYPE != SPT_NONE */ 1571 } 1572 1573 #endif /* SPT_TYPE != SPT_BUILTIN */ 1574 /* 1575 ** REAPCHILD -- pick up the body of my child, lest it become a zombie 1576 ** 1577 ** Parameters: 1578 ** sig -- the signal that got us here (unused). 1579 ** 1580 ** Returns: 1581 ** none. 1582 ** 1583 ** Side Effects: 1584 ** Picks up extant zombies. 1585 */ 1586 1587 void 1588 reapchild(sig) 1589 int sig; 1590 { 1591 int olderrno = errno; 1592 # ifdef HASWAITPID 1593 auto int status; 1594 int count; 1595 int pid; 1596 1597 count = 0; 1598 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) 1599 { 1600 if (count++ > 1000) 1601 { 1602 #ifdef LOG 1603 syslog(LOG_ALERT, "reapchild: waitpid loop: pid=%d, status=%x", 1604 pid, status); 1605 #endif 1606 break; 1607 } 1608 } 1609 # else 1610 # ifdef WNOHANG 1611 union wait status; 1612 1613 while (wait3(&status, WNOHANG, (struct rusage *) NULL) > 0) 1614 continue; 1615 # else /* WNOHANG */ 1616 auto int status; 1617 1618 while (wait(&status) > 0) 1619 continue; 1620 # endif /* WNOHANG */ 1621 # endif 1622 # ifdef SYS5SIGNALS 1623 (void) setsignal(SIGCHLD, reapchild); 1624 # endif 1625 errno = olderrno; 1626 } 1627 /* 1628 ** UNSETENV -- remove a variable from the environment 1629 ** 1630 ** Not needed on newer systems. 1631 ** 1632 ** Parameters: 1633 ** name -- the string name of the environment variable to be 1634 ** deleted from the current environment. 1635 ** 1636 ** Returns: 1637 ** none. 1638 ** 1639 ** Globals: 1640 ** environ -- a pointer to the current environment. 1641 ** 1642 ** Side Effects: 1643 ** Modifies environ. 1644 */ 1645 1646 #ifndef HASUNSETENV 1647 1648 void 1649 unsetenv(name) 1650 char *name; 1651 { 1652 extern char **environ; 1653 register char **pp; 1654 int len = strlen(name); 1655 1656 for (pp = environ; *pp != NULL; pp++) 1657 { 1658 if (strncmp(name, *pp, len) == 0 && 1659 ((*pp)[len] == '=' || (*pp)[len] == '\0')) 1660 break; 1661 } 1662 1663 for (; *pp != NULL; pp++) 1664 *pp = pp[1]; 1665 } 1666 1667 #endif 1668 /* 1669 ** GETDTABLESIZE -- return number of file descriptors 1670 ** 1671 ** Only on non-BSD systems 1672 ** 1673 ** Parameters: 1674 ** none 1675 ** 1676 ** Returns: 1677 ** size of file descriptor table 1678 ** 1679 ** Side Effects: 1680 ** none 1681 */ 1682 1683 #ifdef SOLARIS 1684 # include <sys/resource.h> 1685 #endif 1686 1687 int 1688 getdtsize() 1689 { 1690 #ifdef RLIMIT_NOFILE 1691 struct rlimit rl; 1692 1693 if (getrlimit(RLIMIT_NOFILE, &rl) >= 0) 1694 return rl.rlim_cur; 1695 #endif 1696 1697 # ifdef HASGETDTABLESIZE 1698 return getdtablesize(); 1699 # else 1700 # ifdef _SC_OPEN_MAX 1701 return sysconf(_SC_OPEN_MAX); 1702 # else 1703 return NOFILE; 1704 # endif 1705 # endif 1706 } 1707 /* 1708 ** UNAME -- get the UUCP name of this system. 1709 */ 1710 1711 #ifndef HASUNAME 1712 1713 int 1714 uname(name) 1715 struct utsname *name; 1716 { 1717 FILE *file; 1718 char *n; 1719 1720 name->nodename[0] = '\0'; 1721 1722 /* try /etc/whoami -- one line with the node name */ 1723 if ((file = fopen("/etc/whoami", "r")) != NULL) 1724 { 1725 (void) fgets(name->nodename, NODE_LENGTH + 1, file); 1726 (void) fclose(file); 1727 n = strchr(name->nodename, '\n'); 1728 if (n != NULL) 1729 *n = '\0'; 1730 if (name->nodename[0] != '\0') 1731 return (0); 1732 } 1733 1734 /* try /usr/include/whoami.h -- has a #define somewhere */ 1735 if ((file = fopen("/usr/include/whoami.h", "r")) != NULL) 1736 { 1737 char buf[MAXLINE]; 1738 1739 while (fgets(buf, MAXLINE, file) != NULL) 1740 if (sscanf(buf, "#define sysname \"%*[^\"]\"", 1741 NODE_LENGTH, name->nodename) > 0) 1742 break; 1743 (void) fclose(file); 1744 if (name->nodename[0] != '\0') 1745 return (0); 1746 } 1747 1748 #ifdef TRUST_POPEN 1749 /* 1750 ** Popen is known to have security holes. 1751 */ 1752 1753 /* try uuname -l to return local name */ 1754 if ((file = popen("uuname -l", "r")) != NULL) 1755 { 1756 (void) fgets(name, NODE_LENGTH + 1, file); 1757 (void) pclose(file); 1758 n = strchr(name, '\n'); 1759 if (n != NULL) 1760 *n = '\0'; 1761 if (name->nodename[0] != '\0') 1762 return (0); 1763 } 1764 #endif 1765 1766 return (-1); 1767 } 1768 #endif /* HASUNAME */ 1769 /* 1770 ** INITGROUPS -- initialize groups 1771 ** 1772 ** Stub implementation for System V style systems 1773 */ 1774 1775 #ifndef HASINITGROUPS 1776 1777 initgroups(name, basegid) 1778 char *name; 1779 int basegid; 1780 { 1781 return 0; 1782 } 1783 1784 #endif 1785 /* 1786 ** SETSID -- set session id (for non-POSIX systems) 1787 */ 1788 1789 #ifndef HASSETSID 1790 1791 pid_t 1792 setsid __P ((void)) 1793 { 1794 #ifdef TIOCNOTTY 1795 int fd; 1796 1797 fd = open("/dev/tty", O_RDWR, 0); 1798 if (fd >= 0) 1799 { 1800 (void) ioctl(fd, (int) TIOCNOTTY, (char *) 0); 1801 (void) close(fd); 1802 } 1803 #endif /* TIOCNOTTY */ 1804 # ifdef SYS5SETPGRP 1805 return setpgrp(); 1806 # else 1807 return setpgid(0, getpid()); 1808 # endif 1809 } 1810 1811 #endif 1812 /* 1813 ** FSYNC -- dummy fsync 1814 */ 1815 1816 #ifdef NEEDFSYNC 1817 1818 fsync(fd) 1819 int fd; 1820 { 1821 # ifdef O_SYNC 1822 return fcntl(fd, F_SETFL, O_SYNC); 1823 # else 1824 /* nothing we can do */ 1825 return 0; 1826 # endif 1827 } 1828 1829 #endif 1830 /* 1831 ** DGUX_INET_ADDR -- inet_addr for DG/UX 1832 ** 1833 ** Data General DG/UX version of inet_addr returns a struct in_addr 1834 ** instead of a long. This patches things. Only needed on versions 1835 ** prior to 5.4.3. 1836 */ 1837 1838 #ifdef DGUX_5_4_2 1839 1840 #undef inet_addr 1841 1842 long 1843 dgux_inet_addr(host) 1844 char *host; 1845 { 1846 struct in_addr haddr; 1847 1848 haddr = inet_addr(host); 1849 return haddr.s_addr; 1850 } 1851 1852 #endif 1853 /* 1854 ** GETOPT -- for old systems or systems with bogus implementations 1855 */ 1856 1857 #ifdef NEEDGETOPT 1858 1859 /* 1860 * Copyright (c) 1985 Regents of the University of California. 1861 * All rights reserved. The Berkeley software License Agreement 1862 * specifies the terms and conditions for redistribution. 1863 */ 1864 1865 1866 /* 1867 ** this version hacked to add `atend' flag to allow state machine 1868 ** to reset if invoked by the program to scan args for a 2nd time 1869 */ 1870 1871 #if defined(LIBC_SCCS) && !defined(lint) 1872 static char sccsid[] = "@(#)getopt.c 4.3 (Berkeley) 3/9/86"; 1873 #endif /* LIBC_SCCS and not lint */ 1874 1875 #include <stdio.h> 1876 1877 /* 1878 * get option letter from argument vector 1879 */ 1880 #ifdef _CONVEX_SOURCE 1881 extern int optind, opterr, optopt; 1882 extern char *optarg; 1883 #else 1884 int opterr = 1; /* if error message should be printed */ 1885 int optind = 1; /* index into parent argv vector */ 1886 int optopt = 0; /* character checked for validity */ 1887 char *optarg = NULL; /* argument associated with option */ 1888 #endif 1889 1890 #define BADCH (int)'?' 1891 #define EMSG "" 1892 #define tell(s) if (opterr) {fputs(*nargv,stderr);fputs(s,stderr); \ 1893 fputc(optopt,stderr);fputc('\n',stderr);return(BADCH);} 1894 1895 getopt(nargc,nargv,ostr) 1896 int nargc; 1897 char *const *nargv; 1898 const char *ostr; 1899 { 1900 static char *place = EMSG; /* option letter processing */ 1901 static char atend = 0; 1902 register char *oli; /* option letter list index */ 1903 1904 if (atend) { 1905 atend = 0; 1906 place = EMSG; 1907 } 1908 if(!*place) { /* update scanning pointer */ 1909 if (optind >= nargc || *(place = nargv[optind]) != '-' || !*++place) { 1910 atend++; 1911 return(EOF); 1912 } 1913 if (*place == '-') { /* found "--" */ 1914 ++optind; 1915 atend++; 1916 return(EOF); 1917 } 1918 } /* option letter okay? */ 1919 if ((optopt = (int)*place++) == (int)':' || !(oli = strchr(ostr,optopt))) { 1920 if (!*place) ++optind; 1921 tell(": illegal option -- "); 1922 } 1923 if (*++oli != ':') { /* don't need argument */ 1924 optarg = NULL; 1925 if (!*place) ++optind; 1926 } 1927 else { /* need an argument */ 1928 if (*place) optarg = place; /* no white space */ 1929 else if (nargc <= ++optind) { /* no arg */ 1930 place = EMSG; 1931 tell(": option requires an argument -- "); 1932 } 1933 else optarg = nargv[optind]; /* white space */ 1934 place = EMSG; 1935 ++optind; 1936 } 1937 return(optopt); /* dump back option letter */ 1938 } 1939 1940 #endif 1941 /* 1942 ** VFPRINTF, VSPRINTF -- for old 4.3 BSD systems missing a real version 1943 */ 1944 1945 #ifdef NEEDVPRINTF 1946 1947 #define MAXARG 16 1948 1949 vfprintf(fp, fmt, ap) 1950 FILE * fp; 1951 char * fmt; 1952 char ** ap; 1953 { 1954 char * bp[MAXARG]; 1955 int i = 0; 1956 1957 while (*ap && i < MAXARG) 1958 bp[i++] = *ap++; 1959 fprintf(fp, fmt, bp[0], bp[1], bp[2], bp[3], 1960 bp[4], bp[5], bp[6], bp[7], 1961 bp[8], bp[9], bp[10], bp[11], 1962 bp[12], bp[13], bp[14], bp[15]); 1963 } 1964 1965 vsprintf(s, fmt, ap) 1966 char * s; 1967 char * fmt; 1968 char ** ap; 1969 { 1970 char * bp[MAXARG]; 1971 int i = 0; 1972 1973 while (*ap && i < MAXARG) 1974 bp[i++] = *ap++; 1975 sprintf(s, fmt, bp[0], bp[1], bp[2], bp[3], 1976 bp[4], bp[5], bp[6], bp[7], 1977 bp[8], bp[9], bp[10], bp[11], 1978 bp[12], bp[13], bp[14], bp[15]); 1979 } 1980 1981 #endif 1982 /* 1983 ** USERSHELLOK -- tell if a user's shell is ok for unrestricted use 1984 ** 1985 ** Parameters: 1986 ** shell -- the user's shell from /etc/passwd 1987 ** 1988 ** Returns: 1989 ** TRUE -- if it is ok to use this for unrestricted access. 1990 ** FALSE -- if the shell is restricted. 1991 */ 1992 1993 #if !HASGETUSERSHELL 1994 1995 # ifndef _PATH_SHELLS 1996 # define _PATH_SHELLS "/etc/shells" 1997 # endif 1998 1999 char *DefaultUserShells[] = 2000 { 2001 "/bin/sh", /* standard shell */ 2002 "/usr/bin/sh", 2003 "/bin/csh", /* C shell */ 2004 "/usr/bin/csh", 2005 #ifdef __hpux 2006 "/bin/rsh", /* restricted Bourne shell */ 2007 "/bin/ksh", /* Korn shell */ 2008 "/bin/rksh", /* restricted Korn shell */ 2009 "/bin/pam", 2010 "/usr/bin/keysh", /* key shell (extended Korn shell) */ 2011 "/bin/posix/sh", 2012 #endif 2013 #ifdef _AIX3 2014 "/bin/ksh", /* Korn shell */ 2015 "/usr/bin/ksh", 2016 "/bin/tsh", /* trusted shell */ 2017 "/usr/bin/tsh", 2018 "/bin/bsh", /* Bourne shell */ 2019 "/usr/bin/bsh", 2020 #endif 2021 NULL 2022 }; 2023 2024 #endif 2025 2026 #define WILDCARD_SHELL "/SENDMAIL/ANY/SHELL/" 2027 2028 bool 2029 usershellok(shell) 2030 char *shell; 2031 { 2032 #if HASGETUSERSHELL 2033 register char *p; 2034 extern char *getusershell(); 2035 2036 if (shell == NULL || shell[0] == '\0') 2037 return TRUE; 2038 2039 setusershell(); 2040 while ((p = getusershell()) != NULL) 2041 if (strcmp(p, shell) == 0 || strcmp(p, WILDCARD_SHELL) == 0) 2042 break; 2043 endusershell(); 2044 return p != NULL; 2045 #else 2046 register FILE *shellf; 2047 char buf[MAXLINE]; 2048 2049 if (shell == NULL || shell[0] == '\0') 2050 return TRUE; 2051 2052 shellf = fopen(_PATH_SHELLS, "r"); 2053 if (shellf == NULL) 2054 { 2055 /* no /etc/shells; see if it is one of the std shells */ 2056 char **d; 2057 2058 for (d = DefaultUserShells; *d != NULL; d++) 2059 { 2060 if (strcmp(shell, *d) == 0) 2061 return TRUE; 2062 } 2063 return FALSE; 2064 } 2065 2066 while (fgets(buf, sizeof buf, shellf) != NULL) 2067 { 2068 register char *p, *q; 2069 2070 p = buf; 2071 while (*p != '\0' && *p != '#' && *p != '/') 2072 p++; 2073 if (*p == '#' || *p == '\0') 2074 continue; 2075 q = p; 2076 while (*p != '\0' && *p != '#' && !isspace(*p)) 2077 p++; 2078 *p = '\0'; 2079 if (strcmp(shell, q) == 0 || strcmp(WILDCARD_SHELL, q) == 0) 2080 { 2081 fclose(shellf); 2082 return TRUE; 2083 } 2084 } 2085 fclose(shellf); 2086 return FALSE; 2087 #endif 2088 } 2089 /* 2090 ** FREESPACE -- see how much free space is on the queue filesystem 2091 ** 2092 ** Only implemented if you have statfs. 2093 ** 2094 ** Parameters: 2095 ** dir -- the directory in question. 2096 ** bsize -- a variable into which the filesystem 2097 ** block size is stored. 2098 ** 2099 ** Returns: 2100 ** The number of bytes free on the queue filesystem. 2101 ** -1 if the statfs call fails. 2102 ** 2103 ** Side effects: 2104 ** Puts the filesystem block size into bsize. 2105 */ 2106 2107 /* statfs types */ 2108 #define SFS_NONE 0 /* no statfs implementation */ 2109 #define SFS_USTAT 1 /* use ustat */ 2110 #define SFS_4ARGS 2 /* use four-argument statfs call */ 2111 #define SFS_VFS 3 /* use <sys/vfs.h> implementation */ 2112 #define SFS_MOUNT 4 /* use <sys/mount.h> implementation */ 2113 #define SFS_STATFS 5 /* use <sys/statfs.h> implementation */ 2114 #define SFS_STATVFS 6 /* use <sys/statvfs.h> implementation */ 2115 2116 #ifndef SFS_TYPE 2117 # define SFS_TYPE SFS_NONE 2118 #endif 2119 2120 #if SFS_TYPE == SFS_USTAT 2121 # include <ustat.h> 2122 #endif 2123 #if SFS_TYPE == SFS_4ARGS || SFS_TYPE == SFS_STATFS 2124 # include <sys/statfs.h> 2125 #endif 2126 #if SFS_TYPE == SFS_VFS 2127 # include <sys/vfs.h> 2128 #endif 2129 #if SFS_TYPE == SFS_MOUNT 2130 # include <sys/mount.h> 2131 #endif 2132 #if SFS_TYPE == SFS_STATVFS 2133 # include <sys/statvfs.h> 2134 #endif 2135 2136 long 2137 freespace(dir, bsize) 2138 char *dir; 2139 long *bsize; 2140 { 2141 #if SFS_TYPE != SFS_NONE 2142 # if SFS_TYPE == SFS_USTAT 2143 struct ustat fs; 2144 struct stat statbuf; 2145 # define FSBLOCKSIZE DEV_BSIZE 2146 # define SFS_BAVAIL f_tfree 2147 # else 2148 # if defined(ultrix) 2149 struct fs_data fs; 2150 # define SFS_BAVAIL fd_bfreen 2151 # define FSBLOCKSIZE 1024L 2152 # else 2153 # if SFS_TYPE == SFS_STATVFS 2154 struct statvfs fs; 2155 # define FSBLOCKSIZE fs.f_frsize 2156 # else 2157 struct statfs fs; 2158 # define FSBLOCKSIZE fs.f_bsize 2159 # endif 2160 # endif 2161 # endif 2162 # ifndef SFS_BAVAIL 2163 # define SFS_BAVAIL f_bavail 2164 # endif 2165 2166 # if SFS_TYPE == SFS_USTAT 2167 if (stat(dir, &statbuf) == 0 && ustat(statbuf.st_dev, &fs) == 0) 2168 # else 2169 # if SFS_TYPE == SFS_4ARGS 2170 if (statfs(dir, &fs, sizeof fs, 0) == 0) 2171 # else 2172 # if SFS_TYPE == SFS_STATVFS 2173 if (statvfs(dir, &fs) == 0) 2174 # else 2175 # if defined(ultrix) 2176 if (statfs(dir, &fs) > 0) 2177 # else 2178 if (statfs(dir, &fs) == 0) 2179 # endif 2180 # endif 2181 # endif 2182 # endif 2183 { 2184 if (bsize != NULL) 2185 *bsize = FSBLOCKSIZE; 2186 return (fs.SFS_BAVAIL); 2187 } 2188 #endif 2189 return (-1); 2190 } 2191 /* 2192 ** ENOUGHSPACE -- check to see if there is enough free space on the queue fs 2193 ** 2194 ** Only implemented if you have statfs. 2195 ** 2196 ** Parameters: 2197 ** msize -- the size to check against. If zero, we don't yet 2198 ** know how big the message will be, so just check for 2199 ** a "reasonable" amount. 2200 ** 2201 ** Returns: 2202 ** TRUE if there is enough space. 2203 ** FALSE otherwise. 2204 */ 2205 2206 bool 2207 enoughspace(msize) 2208 long msize; 2209 { 2210 long bfree, bsize; 2211 2212 if (MinBlocksFree <= 0 && msize <= 0) 2213 { 2214 if (tTd(4, 80)) 2215 printf("enoughspace: no threshold\n"); 2216 return TRUE; 2217 } 2218 2219 if ((bfree = freespace(QueueDir, &bsize)) >= 0) 2220 { 2221 if (tTd(4, 80)) 2222 printf("enoughspace: bavail=%ld, need=%ld\n", 2223 bfree, msize); 2224 2225 /* convert msize to block count */ 2226 msize = msize / bsize + 1; 2227 if (MinBlocksFree >= 0) 2228 msize += MinBlocksFree; 2229 2230 if (bfree < msize) 2231 { 2232 #ifdef LOG 2233 if (LogLevel > 0) 2234 syslog(LOG_ALERT, 2235 "%s: low on space (have %ld, %s needs %ld in %s)", 2236 CurEnv->e_id == NULL ? "[NOQUEUE]" : CurEnv->e_id, 2237 bfree, 2238 CurHostName == NULL ? "SMTP-DAEMON" : CurHostName, 2239 msize, QueueDir); 2240 #endif 2241 return FALSE; 2242 } 2243 } 2244 else if (tTd(4, 80)) 2245 printf("enoughspace failure: min=%ld, need=%ld: %s\n", 2246 MinBlocksFree, msize, errstring(errno)); 2247 return TRUE; 2248 } 2249 /* 2250 ** TRANSIENTERROR -- tell if an error code indicates a transient failure 2251 ** 2252 ** This looks at an errno value and tells if this is likely to 2253 ** go away if retried later. 2254 ** 2255 ** Parameters: 2256 ** err -- the errno code to classify. 2257 ** 2258 ** Returns: 2259 ** TRUE if this is probably transient. 2260 ** FALSE otherwise. 2261 */ 2262 2263 bool 2264 transienterror(err) 2265 int err; 2266 { 2267 switch (err) 2268 { 2269 case EIO: /* I/O error */ 2270 case ENXIO: /* Device not configured */ 2271 case EAGAIN: /* Resource temporarily unavailable */ 2272 case ENOMEM: /* Cannot allocate memory */ 2273 case ENODEV: /* Operation not supported by device */ 2274 case ENFILE: /* Too many open files in system */ 2275 case EMFILE: /* Too many open files */ 2276 case ENOSPC: /* No space left on device */ 2277 #ifdef ETIMEDOUT 2278 case ETIMEDOUT: /* Connection timed out */ 2279 #endif 2280 #ifdef ESTALE 2281 case ESTALE: /* Stale NFS file handle */ 2282 #endif 2283 #ifdef ENETDOWN 2284 case ENETDOWN: /* Network is down */ 2285 #endif 2286 #ifdef ENETUNREACH 2287 case ENETUNREACH: /* Network is unreachable */ 2288 #endif 2289 #ifdef ENETRESET 2290 case ENETRESET: /* Network dropped connection on reset */ 2291 #endif 2292 #ifdef ECONNABORTED 2293 case ECONNABORTED: /* Software caused connection abort */ 2294 #endif 2295 #ifdef ECONNRESET 2296 case ECONNRESET: /* Connection reset by peer */ 2297 #endif 2298 #ifdef ENOBUFS 2299 case ENOBUFS: /* No buffer space available */ 2300 #endif 2301 #ifdef ESHUTDOWN 2302 case ESHUTDOWN: /* Can't send after socket shutdown */ 2303 #endif 2304 #ifdef ECONNREFUSED 2305 case ECONNREFUSED: /* Connection refused */ 2306 #endif 2307 #ifdef EHOSTDOWN 2308 case EHOSTDOWN: /* Host is down */ 2309 #endif 2310 #ifdef EHOSTUNREACH 2311 case EHOSTUNREACH: /* No route to host */ 2312 #endif 2313 #ifdef EDQUOT 2314 case EDQUOT: /* Disc quota exceeded */ 2315 #endif 2316 #ifdef EPROCLIM 2317 case EPROCLIM: /* Too many processes */ 2318 #endif 2319 #ifdef EUSERS 2320 case EUSERS: /* Too many users */ 2321 #endif 2322 #ifdef EDEADLK 2323 case EDEADLK: /* Resource deadlock avoided */ 2324 #endif 2325 #ifdef EISCONN 2326 case EISCONN: /* Socket already connected */ 2327 #endif 2328 #ifdef EINPROGRESS 2329 case EINPROGRESS: /* Operation now in progress */ 2330 #endif 2331 #ifdef EALREADY 2332 case EALREADY: /* Operation already in progress */ 2333 #endif 2334 #ifdef EADDRINUSE 2335 case EADDRINUSE: /* Address already in use */ 2336 #endif 2337 #ifdef EADDRNOTAVAIL 2338 case EADDRNOTAVAIL: /* Can't assign requested address */ 2339 #endif 2340 #ifdef ETXTBSY 2341 case ETXTBSY: /* (Apollo) file locked */ 2342 #endif 2343 #if defined(ENOSR) && (!defined(ENOBUFS) || (ENOBUFS != ENOSR)) 2344 case ENOSR: /* Out of streams resources */ 2345 #endif 2346 return TRUE; 2347 } 2348 2349 /* nope, must be permanent */ 2350 return FALSE; 2351 } 2352 /* 2353 ** LOCKFILE -- lock a file using flock or (shudder) fcntl locking 2354 ** 2355 ** Parameters: 2356 ** fd -- the file descriptor of the file. 2357 ** filename -- the file name (for error messages). 2358 ** ext -- the filename extension. 2359 ** type -- type of the lock. Bits can be: 2360 ** LOCK_EX -- exclusive lock. 2361 ** LOCK_NB -- non-blocking. 2362 ** 2363 ** Returns: 2364 ** TRUE if the lock was acquired. 2365 ** FALSE otherwise. 2366 */ 2367 2368 bool 2369 lockfile(fd, filename, ext, type) 2370 int fd; 2371 char *filename; 2372 char *ext; 2373 int type; 2374 { 2375 # if !HASFLOCK 2376 int action; 2377 struct flock lfd; 2378 2379 if (ext == NULL) 2380 ext = ""; 2381 2382 bzero(&lfd, sizeof lfd); 2383 if (bitset(LOCK_UN, type)) 2384 lfd.l_type = F_UNLCK; 2385 else if (bitset(LOCK_EX, type)) 2386 lfd.l_type = F_WRLCK; 2387 else 2388 lfd.l_type = F_RDLCK; 2389 2390 if (bitset(LOCK_NB, type)) 2391 action = F_SETLK; 2392 else 2393 action = F_SETLKW; 2394 2395 if (tTd(55, 60)) 2396 printf("lockfile(%s%s, action=%d, type=%d): ", 2397 filename, ext, action, lfd.l_type); 2398 2399 if (fcntl(fd, action, &lfd) >= 0) 2400 { 2401 if (tTd(55, 60)) 2402 printf("SUCCESS\n"); 2403 return TRUE; 2404 } 2405 2406 if (tTd(55, 60)) 2407 printf("(%s) ", errstring(errno)); 2408 2409 /* 2410 ** On SunOS, if you are testing using -oQ/tmp/mqueue or 2411 ** -oA/tmp/aliases or anything like that, and /tmp is mounted 2412 ** as type "tmp" (that is, served from swap space), the 2413 ** previous fcntl will fail with "Invalid argument" errors. 2414 ** Since this is fairly common during testing, we will assume 2415 ** that this indicates that the lock is successfully grabbed. 2416 */ 2417 2418 if (errno == EINVAL) 2419 { 2420 if (tTd(55, 60)) 2421 printf("SUCCESS\n"); 2422 return TRUE; 2423 } 2424 2425 if (!bitset(LOCK_NB, type) || (errno != EACCES && errno != EAGAIN)) 2426 { 2427 int omode = -1; 2428 # ifdef F_GETFL 2429 int oerrno = errno; 2430 2431 (void) fcntl(fd, F_GETFL, &omode); 2432 errno = oerrno; 2433 # endif 2434 syserr("cannot lockf(%s%s, fd=%d, type=%o, omode=%o, euid=%d)", 2435 filename, ext, fd, type, omode, geteuid()); 2436 } 2437 # else 2438 if (ext == NULL) 2439 ext = ""; 2440 2441 if (tTd(55, 60)) 2442 printf("lockfile(%s%s, type=%o): ", filename, ext, type); 2443 2444 if (flock(fd, type) >= 0) 2445 { 2446 if (tTd(55, 60)) 2447 printf("SUCCESS\n"); 2448 return TRUE; 2449 } 2450 2451 if (tTd(55, 60)) 2452 printf("(%s) ", errstring(errno)); 2453 2454 if (!bitset(LOCK_NB, type) || errno != EWOULDBLOCK) 2455 { 2456 int omode = -1; 2457 # ifdef F_GETFL 2458 int oerrno = errno; 2459 2460 (void) fcntl(fd, F_GETFL, &omode); 2461 errno = oerrno; 2462 # endif 2463 syserr("cannot flock(%s%s, fd=%d, type=%o, omode=%o, euid=%d)", 2464 filename, ext, fd, type, omode, geteuid()); 2465 } 2466 # endif 2467 if (tTd(55, 60)) 2468 printf("FAIL\n"); 2469 return FALSE; 2470 } 2471 /* 2472 ** CHOWNSAFE -- tell if chown is "safe" (executable only by root) 2473 ** 2474 ** Parameters: 2475 ** fd -- the file descriptor to check. 2476 ** 2477 ** Returns: 2478 ** TRUE -- if only root can chown the file to an arbitrary 2479 ** user. 2480 ** FALSE -- if an arbitrary user can give away a file. 2481 */ 2482 2483 bool 2484 chownsafe(fd) 2485 int fd; 2486 { 2487 #ifdef __hpux 2488 char *s; 2489 int tfd; 2490 uid_t o_uid, o_euid; 2491 gid_t o_gid, o_egid; 2492 bool rval; 2493 struct stat stbuf; 2494 2495 o_uid = getuid(); 2496 o_euid = geteuid(); 2497 o_gid = getgid(); 2498 o_egid = getegid(); 2499 fstat(fd, &stbuf); 2500 setresuid(stbuf.st_uid, stbuf.st_uid, -1); 2501 setresgid(stbuf.st_gid, stbuf.st_gid, -1); 2502 s = tmpnam(NULL); 2503 tfd = open(s, O_RDONLY|O_CREAT, 0600); 2504 rval = fchown(tfd, DefUid, DefGid) != 0; 2505 close(tfd); 2506 unlink(s); 2507 setreuid(o_uid, o_euid); 2508 setresgid(o_gid, o_egid, -1); 2509 return rval; 2510 #else 2511 # ifdef _POSIX_CHOWN_RESTRICTED 2512 # if _POSIX_CHOWN_RESTRICTED == -1 2513 return FALSE; 2514 # else 2515 return TRUE; 2516 # endif 2517 # else 2518 # ifdef _PC_CHOWN_RESTRICTED 2519 int rval; 2520 2521 /* 2522 ** Some systems (e.g., SunOS) seem to have the call and the 2523 ** #define _PC_CHOWN_RESTRICTED, but don't actually implement 2524 ** the call. This heuristic checks for that. 2525 */ 2526 2527 errno = 0; 2528 rval = fpathconf(fd, _PC_CHOWN_RESTRICTED); 2529 if (errno == 0) 2530 return rval > 0; 2531 # endif 2532 # ifdef BSD 2533 return TRUE; 2534 # else 2535 return FALSE; 2536 # endif 2537 # endif 2538 #endif 2539 } 2540 /* 2541 ** RESETLIMITS -- reset system controlled resource limits 2542 ** 2543 ** This is to avoid denial-of-service attacks 2544 ** 2545 ** Parameters: 2546 ** none 2547 ** 2548 ** Returns: 2549 ** none 2550 */ 2551 2552 #if HASSETRLIMIT 2553 # include <sys/resource.h> 2554 #endif 2555 2556 void 2557 resetlimits() 2558 { 2559 #if HASSETRLIMIT 2560 struct rlimit lim; 2561 2562 lim.rlim_cur = lim.rlim_max = RLIM_INFINITY; 2563 (void) setrlimit(RLIMIT_CPU, &lim); 2564 (void) setrlimit(RLIMIT_FSIZE, &lim); 2565 #else 2566 # if HASULIMIT 2567 (void) ulimit(2, 0x3fffff); 2568 # endif 2569 #endif 2570 } 2571 /* 2572 ** GETCFNAME -- return the name of the .cf file. 2573 ** 2574 ** Some systems (e.g., NeXT) determine this dynamically. 2575 */ 2576 2577 char * 2578 getcfname() 2579 { 2580 if (ConfFile != NULL) 2581 return ConfFile; 2582 #ifdef NETINFO 2583 { 2584 extern char *ni_propval(); 2585 char *cflocation; 2586 2587 cflocation = ni_propval("/locations", NULL, "sendmail", 2588 "sendmail.cf", '\0'); 2589 if (cflocation != NULL) 2590 return cflocation; 2591 } 2592 #endif 2593 return _PATH_SENDMAILCF; 2594 } 2595 /* 2596 ** SETVENDOR -- process vendor code from V configuration line 2597 ** 2598 ** Parameters: 2599 ** vendor -- string representation of vendor. 2600 ** 2601 ** Returns: 2602 ** TRUE -- if ok. 2603 ** FALSE -- if vendor code could not be processed. 2604 ** 2605 ** Side Effects: 2606 ** It is reasonable to set mode flags here to tweak 2607 ** processing in other parts of the code if necessary. 2608 ** For example, if you are a vendor that uses $%y to 2609 ** indicate YP lookups, you could enable that here. 2610 */ 2611 2612 bool 2613 setvendor(vendor) 2614 char *vendor; 2615 { 2616 if (strcasecmp(vendor, "Berkeley") == 0) 2617 { 2618 VendorCode = VENDOR_BERKELEY; 2619 return TRUE; 2620 } 2621 2622 /* add vendor extensions here */ 2623 2624 #ifdef SUN_EXTENSIONS 2625 if (strcasecmp(vendor, "Sun") == 0) 2626 { 2627 VendorCode = VENDOR_SUN; 2628 return TRUE; 2629 } 2630 #endif 2631 2632 return FALSE; 2633 } 2634 /* 2635 ** STRTOL -- convert string to long integer 2636 ** 2637 ** For systems that don't have it in the C library. 2638 ** 2639 ** This is taken verbatim from the 4.4-Lite C library. 2640 */ 2641 2642 #ifdef NEEDSTRTOL 2643 2644 #if defined(LIBC_SCCS) && !defined(lint) 2645 static char sccsid[] = "@(#)strtol.c 8.1 (Berkeley) 6/4/93"; 2646 #endif /* LIBC_SCCS and not lint */ 2647 2648 #include <limits.h> 2649 2650 /* 2651 * Convert a string to a long integer. 2652 * 2653 * Ignores `locale' stuff. Assumes that the upper and lower case 2654 * alphabets and digits are each contiguous. 2655 */ 2656 2657 long 2658 strtol(nptr, endptr, base) 2659 const char *nptr; 2660 char **endptr; 2661 register int base; 2662 { 2663 register const char *s = nptr; 2664 register unsigned long acc; 2665 register int c; 2666 register unsigned long cutoff; 2667 register int neg = 0, any, cutlim; 2668 2669 /* 2670 * Skip white space and pick up leading +/- sign if any. 2671 * If base is 0, allow 0x for hex and 0 for octal, else 2672 * assume decimal; if base is already 16, allow 0x. 2673 */ 2674 do { 2675 c = *s++; 2676 } while (isspace(c)); 2677 if (c == '-') { 2678 neg = 1; 2679 c = *s++; 2680 } else if (c == '+') 2681 c = *s++; 2682 if ((base == 0 || base == 16) && 2683 c == '0' && (*s == 'x' || *s == 'X')) { 2684 c = s[1]; 2685 s += 2; 2686 base = 16; 2687 } 2688 if (base == 0) 2689 base = c == '0' ? 8 : 10; 2690 2691 /* 2692 * Compute the cutoff value between legal numbers and illegal 2693 * numbers. That is the largest legal value, divided by the 2694 * base. An input number that is greater than this value, if 2695 * followed by a legal input character, is too big. One that 2696 * is equal to this value may be valid or not; the limit 2697 * between valid and invalid numbers is then based on the last 2698 * digit. For instance, if the range for longs is 2699 * [-2147483648..2147483647] and the input base is 10, 2700 * cutoff will be set to 214748364 and cutlim to either 2701 * 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated 2702 * a value > 214748364, or equal but the next digit is > 7 (or 8), 2703 * the number is too big, and we will return a range error. 2704 * 2705 * Set any if any `digits' consumed; make it negative to indicate 2706 * overflow. 2707 */ 2708 cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX; 2709 cutlim = cutoff % (unsigned long)base; 2710 cutoff /= (unsigned long)base; 2711 for (acc = 0, any = 0;; c = *s++) { 2712 if (isdigit(c)) 2713 c -= '0'; 2714 else if (isalpha(c)) 2715 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 2716 else 2717 break; 2718 if (c >= base) 2719 break; 2720 if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim) 2721 any = -1; 2722 else { 2723 any = 1; 2724 acc *= base; 2725 acc += c; 2726 } 2727 } 2728 if (any < 0) { 2729 acc = neg ? LONG_MIN : LONG_MAX; 2730 errno = ERANGE; 2731 } else if (neg) 2732 acc = -acc; 2733 if (endptr != 0) 2734 *endptr = (char *)(any ? s - 1 : nptr); 2735 return (acc); 2736 } 2737 2738 #endif 2739 /* 2740 ** SM_GETHOSTBY{NAME,ADDR} -- compatibility routines for gethostbyXXX 2741 ** 2742 ** Some operating systems have wierd problems with the gethostbyXXX 2743 ** routines. For example, Solaris versions at least through 2.3 2744 ** don't properly deliver a canonical h_name field. This tries to 2745 ** work around these problems. 2746 */ 2747 2748 struct hostent * 2749 sm_gethostbyname(name) 2750 char *name; 2751 { 2752 #if defined(SOLARIS) && SOLARIS < 204 2753 extern int h_errno; 2754 2755 # if SOLARIS == 203 2756 static struct hostent hp; 2757 static char buf[1000]; 2758 extern struct hostent *_switch_gethostbyname_r(); 2759 2760 return _switch_gethostbyname_r(name, &hp, buf, sizeof(buf), &h_errno); 2761 # else 2762 extern struct hostent *__switch_gethostbyname(); 2763 2764 return __switch_gethostbyname(name); 2765 # endif 2766 #else 2767 return gethostbyname(name); 2768 #endif 2769 } 2770 2771 struct hostent * 2772 sm_gethostbyaddr(addr, len, type) 2773 char *addr; 2774 int len; 2775 int type; 2776 { 2777 #if defined(SOLARIS) && SOLARIS < 204 2778 extern int h_errno; 2779 2780 # if SOLARIS == 203 2781 static struct hostent hp; 2782 static char buf[1000]; 2783 extern struct hostent *_switch_gethostbyaddr_r(); 2784 2785 return _switch_gethostbyaddr_r(addr, len, type, &hp, buf, sizeof(buf), &h_errno); 2786 # else 2787 extern struct hostent *__switch_gethostbyaddr(); 2788 2789 return __switch_gethostbyaddr(addr, len, type); 2790 # endif 2791 #else 2792 return gethostbyaddr(addr, len, type); 2793 #endif 2794 } 2795 /* 2796 ** SM_GETPW{NAM,UID} -- wrapper for getpwnam and getpwuid 2797 */ 2798 2799 struct passwd * 2800 sm_getpwnam(user) 2801 char *user; 2802 { 2803 return getpwnam(user); 2804 } 2805 2806 struct passwd * 2807 sm_getpwuid(uid) 2808 uid_t uid; 2809 { 2810 return getpwuid(uid); 2811 } 2812 /* 2813 ** NI_PROPVAL -- netinfo property value lookup routine 2814 ** 2815 ** Parameters: 2816 ** keydir -- the Netinfo directory name in which to search 2817 ** for the key. 2818 ** keyprop -- the name of the property in which to find the 2819 ** property we are interested. Defaults to "name". 2820 ** keyval -- the value for which we are really searching. 2821 ** valprop -- the property name for the value in which we 2822 ** are interested. 2823 ** sepchar -- if non-nil, this can be multiple-valued, and 2824 ** we should return a string separated by this 2825 ** character. 2826 ** 2827 ** Returns: 2828 ** NULL -- if: 2829 ** 1. the directory is not found 2830 ** 2. the property name is not found 2831 ** 3. the property contains multiple values 2832 ** 4. some error occured 2833 ** else -- the location of the config file. 2834 ** 2835 ** Example: 2836 ** To search for an alias value, use: 2837 ** ni_propval("/aliases", "name", aliasname, "members", ',') 2838 ** 2839 ** Notes: 2840 ** Caller should free the return value of ni_proval 2841 */ 2842 2843 #ifdef NETINFO 2844 2845 # include <netinfo/ni.h> 2846 2847 # define LOCAL_NETINFO_DOMAIN "." 2848 # define PARENT_NETINFO_DOMAIN ".." 2849 # define MAX_NI_LEVELS 256 2850 2851 char * 2852 ni_propval(keydir, keyprop, keyval, valprop, sepchar) 2853 char *keydir; 2854 char *keyprop; 2855 char *keyval; 2856 char *valprop; 2857 char sepchar; 2858 { 2859 char *propval = NULL; 2860 int i; 2861 int j, alen; 2862 void *ni = NULL; 2863 void *lastni = NULL; 2864 ni_status nis; 2865 ni_id nid; 2866 ni_namelist ninl; 2867 register char *p; 2868 char keybuf[1024]; 2869 2870 /* 2871 ** Create the full key from the two parts. 2872 ** 2873 ** Note that directory can end with, e.g., "name=" to specify 2874 ** an alternate search property. 2875 */ 2876 2877 i = strlen(keydir) + strlen(keyval) + 2; 2878 if (keyprop != NULL) 2879 i += strlen(keyprop) + 1; 2880 if (i > sizeof keybuf) 2881 return NULL; 2882 strcpy(keybuf, keydir); 2883 strcat(keybuf, "/"); 2884 if (keyprop != NULL) 2885 { 2886 strcat(keybuf, keyprop); 2887 strcat(keybuf, "="); 2888 } 2889 strcat(keybuf, keyval); 2890 2891 /* 2892 ** If the passed directory and property name are found 2893 ** in one of netinfo domains we need to search (starting 2894 ** from the local domain moving all the way back to the 2895 ** root domain) set propval to the property's value 2896 ** and return it. 2897 */ 2898 2899 for (i = 0; i < MAX_NI_LEVELS; ++i) 2900 { 2901 if (i == 0) 2902 { 2903 nis = ni_open(NULL, LOCAL_NETINFO_DOMAIN, &ni); 2904 } 2905 else 2906 { 2907 if (lastni != NULL) 2908 ni_free(lastni); 2909 lastni = ni; 2910 nis = ni_open(lastni, PARENT_NETINFO_DOMAIN, &ni); 2911 } 2912 2913 /* 2914 ** Don't bother if we didn't get a handle on a 2915 ** proper domain. This is not necessarily an error. 2916 ** We would get a positive ni_status if, for instance 2917 ** we never found the directory or property and tried 2918 ** to open the parent of the root domain! 2919 */ 2920 2921 if (nis != 0) 2922 break; 2923 2924 /* 2925 ** Find the path to the server information. 2926 */ 2927 2928 if (ni_pathsearch(ni, &nid, keybuf) != 0) 2929 continue; 2930 2931 /* 2932 ** Find associated value information. 2933 */ 2934 2935 if (ni_lookupprop(ni, &nid, valprop, &ninl) != 0) 2936 continue; 2937 2938 /* 2939 ** See if we have an acceptable number of values. 2940 */ 2941 2942 if (ninl.ni_namelist_len <= 0) 2943 continue; 2944 2945 if (sepchar == '\0' && ninl.ni_namelist_len > 1) 2946 { 2947 ni_namelist_free(&ninl); 2948 continue; 2949 } 2950 2951 /* 2952 ** Calculate number of bytes needed and build result 2953 */ 2954 2955 alen = 1; 2956 for (j = 0; j < ninl.ni_namelist_len; j++) 2957 alen += strlen(ninl.ni_namelist_val[j]) + 1; 2958 propval = p = xalloc(alen); 2959 for (j = 0; j < ninl.ni_namelist_len; j++) 2960 { 2961 strcpy(p, ninl.ni_namelist_val[j]); 2962 p += strlen(p); 2963 *p++ = sepchar; 2964 } 2965 *--p = '\0'; 2966 2967 ni_namelist_free(&ninl); 2968 } 2969 2970 /* 2971 ** Clean up. 2972 */ 2973 2974 if (ni != NULL) 2975 ni_free(ni); 2976 if (lastni != NULL && ni != lastni) 2977 ni_free(lastni); 2978 2979 return propval; 2980 } 2981 2982 #endif /* NETINFO */ 2983 /* 2984 ** HARD_SYSLOG -- call syslog repeatedly until it works 2985 ** 2986 ** Needed on HP-UX, which apparently doesn't guarantee that 2987 ** syslog succeeds during interrupt handlers. 2988 */ 2989 2990 #ifdef __hpux 2991 2992 # define MAXSYSLOGTRIES 100 2993 # undef syslog 2994 2995 # ifdef __STDC__ 2996 hard_syslog(int pri, char *msg, ...) 2997 # else 2998 hard_syslog(pri, msg, va_alist) 2999 int pri; 3000 char *msg; 3001 va_dcl 3002 # endif 3003 { 3004 int i; 3005 char buf[SYSLOG_BUFSIZE * 2]; 3006 VA_LOCAL_DECL; 3007 3008 VA_START(msg); 3009 vsprintf(buf, msg, ap); 3010 VA_END; 3011 3012 for (i = MAXSYSLOGTRIES; --i >= 0 && syslog(pri, "%s", buf) < 0; ) 3013 continue; 3014 } 3015 3016 #endif 3017 /* 3018 ** LOCAL_HOSTNAME_LENGTH 3019 ** 3020 ** This is required to get sendmail to compile against BIND 4.9.x 3021 ** on Ultrix. 3022 */ 3023 3024 #if defined(ultrix) && NAMED_BIND 3025 3026 # include <resolv.h> 3027 # if __RES >= 19931104 3028 3029 int 3030 local_hostname_length(hostname) 3031 char *hostname; 3032 { 3033 int len_host, len_domain; 3034 3035 if (!*_res.defdname) 3036 res_init(); 3037 len_host = strlen(hostname); 3038 len_domain = strlen(_res.defdname); 3039 if (len_host > len_domain && 3040 (strcasecmp(hostname + len_host - len_domain,_res.defdname) == 0) && 3041 hostname[len_host - len_domain - 1] == '.') 3042 return len_host - len_domain - 1; 3043 else 3044 return 0; 3045 } 3046 3047 # endif 3048 #endif 3049 /* 3050 ** Compile-Time options 3051 */ 3052 3053 char *CompileOptions[] = 3054 { 3055 #if HESIOD 3056 "HESIOD", 3057 #endif 3058 #if LOG 3059 "LOG", 3060 #endif 3061 #if MATCHGECOS 3062 "MATCHGECOS", 3063 #endif 3064 #if NAMED_BIND 3065 "NAMED_BIND", 3066 #endif 3067 #if NDBM 3068 "NDBM", 3069 #endif 3070 #if NETINET 3071 "NETINET", 3072 #endif 3073 #if NETINFO 3074 "NETINFO", 3075 #endif 3076 #if NETISO 3077 "NETISO", 3078 #endif 3079 #if NETNS 3080 "NETNS", 3081 #endif 3082 #if NETUNIX 3083 "NETUNIX", 3084 #endif 3085 #if NETX25 3086 "NETX25", 3087 #endif 3088 #if NEWDB 3089 "NEWDB", 3090 #endif 3091 #if NIS 3092 "NIS", 3093 #endif 3094 #if SCANF 3095 "SCANF", 3096 #endif 3097 #if SUID_ROOT_FILES_OK 3098 "SUID_ROOT_FILES_OK", 3099 #endif 3100 #if USERDB 3101 "USERDB", 3102 #endif 3103 #if XDEBUG 3104 "XDEBUG", 3105 #endif 3106 #if XLA 3107 "XLA", 3108 #endif 3109 NULL 3110 }; 3111