1# Copyright (c) 1983 Eric P. Allman 2# Copyright (c) 1988 The Regents of the University of California. 3# All rights reserved. 4# 5# %sccs.include.redist.sh% 6# 7# @(#)READ_ME 8.54 (Berkeley) 03/03/94 8# 9 10This directory contains the source files for sendmail. 11 12For detailed instructions, please read the document ../doc/op.me: 13 14 eqn ../doc/op.me | pic | ditroff -me 15 16The Makefile is for the new (4.4BSD) Berkeley make and uses syntax 17that is not recognized by older makes. It also has assumptions 18about the 4.4 file system layout built in. See below for details 19about other Makefiles. 20 21There is also a Makefile.dist which is much less clever, but works on 22the old traditional make. You can use this using: 23 24 make -f Makefile.dist 25 26************************************************** 27** Read below for more details of Makefiles. ** 28************************************************** 29 30There is also a shell script (makesendmail) that tries to be clever 31about using object subdirectories. It's pretty straightforward, and 32may help if you share a source tree among different architectures. 33 34************************************************************************** 35** IMPORTANT: DO NOT USE OPTIMIZATION (``-O'') IF YOU ARE RUNNING ** 36** GCC 2.4.x or 2.5.x. THERE IS A BUG IN THE GCC OPTIMIZER THAT ** 37** CAUSES SENDMAIL COMPILES TO FAIL MISERABLY. ** 38************************************************************************** 39 40Jim Wilson of Cygnus believes he has found the problem -- it will 41probably be fixed in GCC 2.5.6 -- but until this is verified, be 42very suspicious of gcc -O. 43 44************************************************************************** 45** IMPORTANT: Read the appropriate paragraphs in the section on ** 46** ``Operating System and Compile Quirks''. ** 47************************************************************************** 48 49 50+-----------+ 51| MAKEFILES | 52+-----------+ 53 54The "Makefile"s in these directories are from 4.4 BSD, and hence 55really only work properly if you are on a 4.4 system. In particular, 56they use new syntax that will not be recognized on old make programs, 57and some of them do things like ``.include ../../Makefile.inc'' to 58pick up some system defines. If you are getting sendmail separately, 59these files won't be included in the distribution, as they are 60outside of the sendmail tree. 61 62Instead, you should use one of the other Makefiles, such as 63Makefile.SunOS for a SunOS system, and so forth. These should 64work with the version of make that is appropriate for that 65system. 66 67There are a bunch of other Makefiles for other systems with names 68like Makefile.HPUX for an HP-UX system. They use the version of 69make that is native for that system. These are the Makefiles that 70I use, and they have "Berkeley quirks" in them. I can't guarantee 71that they will work unmodified in your environment. Many of them 72include -I/usr/sww/include/db and -L/usr/sww/lib -- this is Berkeley's 73location (the ``Software Warehouse'') for the new database libraries, 74described below. You don't have to remove these definitions if you 75don't have these directories. 76 77Please look for an appropriate Makefile before you start trying to 78compile with Makefile or Makefile.dist. 79 80If you want to port the new Berkeley make, you can get it from 81ftp.uu.net in the directory /systems/unix/bsd-sources/usr.bin/make. 82Diffs and instructions for building this version of make under 83SunOS 4.1.x are available on ftp.css.itd.umich.edu in 84/pub/systems/sun/Net2-make.sun4.diff.Z. Diffs and instructions 85for building this version of make under IBM AIX 3.2.4 are available 86on ftp.uni-stuttgart.de in /sw/src/patches/bsd-make-rus-patches. 87Paul Southworth <pauls@umich.edu> published a description of porting 88this make in comp.unix.bsd. 89 90The complete text of the Makefile.inc that is in the parent of the 91sendmail directory is: 92 93 # @(#)Makefile.inc 8.1 (Berkeley) 6/6/93 94 95 BINDIR?= /usr/sbin 96 97 98+----------------------+ 99| DATABASE DEFINITIONS | 100+----------------------+ 101 102There are several database formats that can be used for the alias files 103and for general maps. When used for alias files they interact in an 104attempt to be back compatible. 105 106The three options are NEWDB (the new Berkeley DB package), NDBM (the 107older DBM implementation -- the very old V7 implementation is no 108longer supported), and NIS (Network Information Services). Used alone 109these just include the support they indicate. [If you are using NEWDB, 110get the latest version from FTP.CS.Berkeley.EDU in /ucb/4bsd. DO NOT 111use the version from the Net2 distribution! However, if you are on 112BSD/386 or 386BSD-based systems, use the one that already exists 113on your system. You may need to define OLD_NEWDB to do this.] 114 115[NOTE WELL: it is CRITICAL that you remove ndbm.o from libdb.a and 116ndbm.h from the appropriate include directories if you want to get 117ndbm support. These files OVERRIDE calls to ndbm routines -- in 118particular, if you leave ndbm.h in, you can find yourself using 119the new db package even if you don't define NEWDB.] 120 121If NEWDB and NDBM are defined (but not NIS), then sendmail will read 122NDBM format alias files, but the next time a newaliases is run the 123format will be converted to NEWDB; that format will be used forever 124more. This is intended as a transition feature. [Note however that 125the NEWDB library also catches and maps NDBM calls; you will have to 126back out this feature to get this to work. See ``Quirks'' section 127below for details.] 128 129If all three are defined, sendmail operates as described above, and also 130looks for the file /var/yp/Makefile. If it exists, newaliases will 131build BOTH the NEWDB and NDBM format alias files. However, it will 132only use the NEWDB file; the NDBM format file is used only by the 133NIS subsystem. 134 135If NDBM and NIS are defined (regardless of the definition of NEWDB 136or the existance of /var/yp/Makefile), sendmail adds the special 137tokens "YP_LAST_MODIFIED" and "YP_MASTER_NAME", both of which are 138required if the NDBM file is to be used as an NIS map. 139 140All of -DNEWDB, -DNDBM, and -DNIS are normally defined in the DBMDEF 141line in the Makefile. 142 143 144+---------------+ 145| COMPILE FLAGS | 146+---------------+ 147 148Whereever possible, I try to make sendmail pull in the correct 149compilation options needed to compile on various environments based on 150automatically defined symbols. Some machines don't seem to have useful 151symbols availble, requiring the following compilation flags in the 152Makefile: 153 154SOLARIS Define this if you are running Solaris 2.0 or higher. 155SOLARIS_2_3 Define this if you are running Solaris 2.3 or higher. 156SUNOS403 Define this if you are running SunOS 4.0.3. 157NeXT Define this if you are on a NeXT box. (This one may 158 be pre-defined for you.) There are other hacks you 159 have to make -- see below. 160_AIX3 Define this if you are IBM AIX 3.x. 161RISCOS Define this if you are running RISC/os from MIPS. 162_SCO_unix_ Define this if you are on SCO UNIX. 163_SCO_unix_4_2 Define this if you are on SCO Open Server 3.2v4. 164 165If you are a system that sendmail has already been ported to, you 166probably won't have to touch these. But if you are porting, you may 167have to tweak the following compilation flags in conf.h in order to 168get it to compile and link properly: 169 170SYSTEM5 Adjust for System V (not necessarily Release 4). 171SYS5SIGNALS Use System V signal semantics -- the signal handler 172 is automatically dropped when the signal is caught. 173 If this is not set, use POSIX/BSD semantics, where the 174 signal handler stays in force until an exec or an 175 explicit delete. Implied by SYSTEM5. 176SYS5SETPGRP Use System V setpgrp() semantics. Implied by SYSTEM5. 177HASFLOCK Set this if you prefer to use the flock(2) system call 178 rather than using fcntl-based locking. Fcntl locking 179 has some semantic gotchas, but many vendor systems 180 also interface it to lockd(8) to do NFS-style locking. 181 For this reason, this should not be set unless you 182 don't have an alternative. 183HASUNAME Set if you have the "uname" system call. Implied by 184 SYSTEM5. 185HASUNSETENV Define this if your system library has the "unsetenv" 186 subroutine. 187HASSETSID Define this if you have the setsid(2) system call. This 188 is implied if your system appears to be POSIX compliant. 189HASINITGROUPS Define this if you have the initgroups(3) routine. 190HASSETVBUF Define this if you have the setvbuf(3) library call. 191 If you don't, setlinebuf will be used instead. This 192 defaults on if your compiler defines __STDC__. 193HASSETREUID Define this if you have setreuid(2) ***AND*** root can 194 use setreuid to change to an arbitrary user. This second 195 condition is not satisfied on AIX 3.x. You may find that 196 your system has setresuid(2), (for example, on HP-UX) in 197 which case you will also have to #define setreuid(r, e) 198 to be the appropriate call. Some systems (such as Solaris) 199 have a compatibility routine that doesn't work properly, 200 but may have "saved user ids" properly implemented so you 201 can ``#define setreuid(r, e) seteuid(e)'' and have it work. 202 The important thing is that you have a call that will set 203 the effective uid independently of the real or saved uid 204 and be able to set the effective uid back again when done. 205 There's a test program in ../test/t_setreuid.c that will 206 try things on your system. Setting this improves the 207 security, since sendmail doesn't have to read .forward 208 and :include: files as root. There are certain attacks 209 that may be unpreventable without this call. 210HASLSTAT Define this if you have symbolic links (and thus the 211 lstat(2) system call). This improves security. Unlike 212 most other options, this one is on by default, so you 213 need to #undef it in conf.h if you don't have symbolic 214 links (these days everyone does). 215NEEDGETOPT Define this if you need a reimplementation of getopt(3). 216 On some systems, getopt does very odd things if called 217 to scan the arguments twice. This flag will ask sendmail 218 to compile in a local version of getopt that works 219 properly. 220NEEDSTRTOL Define this if your standard C library does not define 221 strtol(3). This will compile in a local version. 222NEEDVPRINTF Define this if your standard C library does not define 223 vprintf(3). Note that the resulting fake implementation 224 is not very elegant and may not even work on some 225 architectures. 226HASGETUSERSHELL Define this to 1 if you have getusershell(3) in your 227 standard C library. If this is not defined, or is defined 228 to be 0, sendmail will scan the /etc/shells file (no 229 NIS-style support, defaults to /bin/sh and /bin/csh if 230 that file does not exist) to get a list of unrestricted 231 user shells. This is used to determine whether users 232 are allowed to forward their mail to a program or a file. 233GIDSET_T The type of entries in a gidset passed as the second 234 argument to getgroups(2). Historically this has been an 235 int, so this is the default, but some systems (such as 236 IRIX) pass it as a gid_t, which is an unsigned short. 237 This will make a difference, so it is important to get 238 this right! However, it is only an issue if you have 239 group sets. 240SLEEP_T The type returned by the system sleep() function. 241 Defaults to "unsigned int". Don't worry about this 242 if you don't have compilation problems. 243ARBPTR_T The type of an arbitrary pointer -- defaults to "void *". 244 If you are an very old compiler you may need to define 245 this to be "char *". 246LA_TYPE The type of load average your kernel supports. These 247 can be one of: 248 LA_ZERO (1) -- it always returns the load average as 249 "zero" (and does so on all architectures). 250 LA_SUBR (4) if you have the getloadavg(3) routine, 251 LA_MACH (5) to use MACH-style load averages (calls 252 processor_set_info()), 253 LA_PROCSTR (7) to read /proc/loadavg and interpret it 254 as a string representing a floating-point 255 number (Linux-style), 256 LA_FLOAT (3) if you read kmem and interpret the value 257 as a floating point number, 258 LA_INT (2) to interpret as a long integer, 259 LA_SHORT (6) to interpret as a short integer. 260 These last three have several other parameters that they 261 try to divine: the name of your kernel, the name of the 262 variable in the kernel to examine, the number of bits of 263 precision in a fixed point load average, and so forth. 264 In desperation, use LA_ZERO. The actual code is in 265 conf.c -- it can be tweaked if you are brave. 266SFS_TYPE Encodes how your kernel can locate the amount of free 267 space on a disk partition. This can be set to SFS_NONE 268 (0) if you have no way of getting this information, 269 SFS_USTAT (1) if you have the ustat(2) system call, 270 SFS_4ARGS (2) if you have a four-argument statfs(2) 271 system call (and the include file is <sys/statfs.h>), 272 and SFS_VFS (3), SFS_MOUNT (4), or SFS_STATFS (5) if 273 you have the two-argument statfs(2) system call, with 274 includes in <sys/vfs.h>, <sys/mount.h>, or <sys/statfs.h> 275 respectively. The default if nothing is defined is 276 SFS_NONE. 277ERRLIST_PREDEFINED 278 If set, assumes that some header file defines sys_errlist. 279 This may be needed if you get type conflicts on this 280 variable -- otherwise don't worry about it. 281WAITUNION The wait(2) routine takes a "union wait" argument instead 282 of an integer argument. This is for compatibility with 283 old versions of BSD. 284SCANF You can set this to extend the F command to accept a 285 scanf string -- this gives you a primitive parser for 286 class definitions -- BUT it can make you vulnerable to 287 core dumps if the target file is poorly formed. 288SYSLOG_BUFSIZE You can define this to be the size of the buffer that 289 syslog accepts. If it is not defined, it assumes a 290 1024-byte buffer. If the buffer is very small (under 291 256 bytes) the log message format changes -- each 292 e-mail message will log many more messages, since it 293 will log each piece of information as a separate line 294 in syslog. 295 296 297+-----------------------+ 298| COMPILE-TIME FEATURES | 299+-----------------------+ 300 301There are a bunch of features that you can decide to compile in, such 302as selecting various database packages and special protocol support. 303Several are assumed based on other compilation flags -- if you want to 304"un-assume" something, you probably need to edit conf.h. Compilation 305flags that add support for special features include: 306 307NDBM Include support for "new" DBM library for aliases and maps. 308 Normally defined in the Makefile. 309NEWDB Include support for Berkeley "db" package (hash & btree) 310 for aliases and maps. Normally defined in the Makefile. 311NIS Define this to get NIS (YP) support for aliases and maps. 312 Normally defined in the Makefile. 313USERDB Include support for the User Information Database. Implied 314 by NEWDB in conf.h. 315IDENTPROTO Define this as 1 to get IDENT (RFC 1413) protocol support. 316 This is assumed unless you are running on Ultrix or 317 HP-UX, both of which have a problem in the UDP 318 implementation. You can define it to be 0 to explicitly 319 turn off IDENT protocol support. 320MIME Include support for MIME-encapsulated error messages. 321LOG Set this to get syslog(3) support. Defined by default 322 in conf.h. You want this if at all possible. 323NETINET Set this to get TCP/IP support. Defined by default 324 in conf.h. You probably want this. 325NETISO Define this to get ISO networking support. 326SMTP Define this to get the SMTP code. Implied by NETINET 327 or NETISO. 328NAMED_BIND Define this to get DNS (name daemon) support, including 329 MX support. The specs you must use this if you run 330 SMTP. Defined by default in conf.h. 331QUEUE Define this to get queueing code. Implied by NETINET 332 or NETISO; required by SMTP. This gives you other good 333 stuff -- it should be on. 334DAEMON Define this to get general network support. Implied by 335 NETINET or NETISO. Defined by default in conf.h. You 336 almost certainly want it on. 337MATCHGECOS Permit fuzzy matching of user names against the full 338 name (GECOS) field in the /etc/passwd file. This should 339 probably be on, since you can disable it from the config 340 file if you want to. Defined by default in conf.h. 341SETPROCTITLE Try to set the string printed by "ps" to something 342 informative about what sendmail is doing. Defined by 343 default in conf.h. 344 345 346+---------------------+ 347| DNS/RESOLVER ISSUES | 348+---------------------+ 349 350Many systems have old versions of the resolver library. At a minimum, 351you should be running BIND 4.8.3; older versions may compile, but they 352have known bugs that should give you pause. 353 354Common problems in old versions include "undefined" errors for 355dn_skipname. 356 357Some people have had a problem with BIND 4.9; it uses some routines 358that it expects to be externally defined such as strerror(). It may 359help to link with "-l44bsd" to solve this problem. 360 361!PLEASE! be sure to link with the same version of the resolver as 362the header files you used -- some people have used the 4.9 headers 363and linked with BIND 4.8 or vice versa, and it doesn't work. 364Unfortunately, it doesn't fail in an obvious way -- things just 365subtly don't work. 366 367 368+-------------------------------------+ 369| OPERATING SYSTEM AND COMPILE QUIRKS | 370+-------------------------------------+ 371 372GCC 2.5.x problems *** IMPORTANT *** 373 Date: Mon, 29 Nov 93 19:08:44 PST 374 From: wilson@cygnus.com (Jim Wilson) 375 Message-Id: <9311300308.AA04608@cygnus.com> 376 To: kenner@vlsi1.ultra.nyu.edu 377 Subject: [cattelan@thebarn.com: gcc 2.5.4-2.5.5 -O bug] 378 Cc: cattelan@thebarn.com, rms@gnu.ai.mit.edu, sendmail@cs.berkeley.edu 379 380 This fixes a problem that occurs when gcc 2.5.5 is used to compile 381 sendmail 8.6.4 with optimization on a sparc. 382 383 Mon Nov 29 19:00:14 1993 Jim Wilson (wilson@sphagnum.cygnus.com) 384 385 * reload.c (find_reloads_toplev): Replace obsolete reference to 386 BYTE_LOADS_*_EXTEND with LOAD_EXTEND_OP. 387 388 *** clean-ss-931128/reload.c Sun Nov 14 16:20:01 1993 389 --- ss-931128/reload.c Mon Nov 29 18:52:55 1993 390 *************** find_reloads_toplev (x, opnum, type, ind 391 *** 3888,3894 **** 392 force a reload in that case. So we should not do anything here. */ 393 394 else if (regno >= FIRST_PSEUDO_REGISTER 395 ! #if defined(BYTE_LOADS_ZERO_EXTEND) || defined(BYTE_LOADS_SIGN_EXTEND) 396 && (GET_MODE_SIZE (GET_MODE (x)) 397 <= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))) 398 #endif 399 --- 3888,3894 ---- 400 force a reload in that case. So we should not do anything here. */ 401 402 else if (regno >= FIRST_PSEUDO_REGISTER 403 ! #ifdef LOAD_EXTEND_OP 404 && (GET_MODE_SIZE (GET_MODE (x)) 405 <= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))) 406 #endif 407 408 409SunOS 4.x (Solaris 1.x) 410 You may have to use -lresolv on SunOS. However, beware that 411 this links in a new version of gethostbyname that does not 412 understand NIS, so you must have all of your hosts in DNS. 413 414 Some people have reported problems with the SunOS version of 415 -lresolv and/or in.named, and suggest that you get a newer 416 version. The symptoms are delays when you connect to the 417 SMTP server on a SunOS machine or having your domain added to 418 addresses inappropriately. There is a version of BIND 419 version 4.9 on gatekeeper.DEC.COM in pub/BSD/bind/4.9. 420 421 There is substantial disagreement about whether you can make 422 this work with resolv+, which allows you to specify a search-path 423 of services. Some people report that it works fine, others 424 claim it doesn't work at all (including causing sendmail to 425 drop core when it tries to do multiple resolv+ lookups for a 426 single job). I haven't tried resolv+, as we use DNS exclusively. 427 428 Should you want to try resolv+, it is on ftp.uu.net in 429 /networking/ip/dns. 430 431Solaris 2.x (SunOS 5.x) 432 To compile for Solaris, be sure you use -DSOLARIS. 433 434 From a correspondent: 435 436 For solaris 2.2, I have 437 438 hosts: files dns 439 440 in /etc/nsswitch.conf and /etc/hosts has to have the fully 441 qualified host name. I think "files" has to be before "dns" 442 in /etc/nsswitch.conf during bootup. 443 444 To the best of my knowledge, Solaris does not have the 445 gethostbyname problem described above. 446 447 The Solaris "syslog" function is apparently limited to something 448 about 90 characters because of a kernel limitation. If you have 449 source code, you can probably up this number. You can get patches 450 that fix this problem: the patch ids are: 451 452 Solaris 2.1 100834 453 Solaris 2.2 100999 454 Solaris 2.3 101318 455 456 Be sure you have the appropriate patch installed or you won't 457 see system logging. 458 459OSF/1 460 If you are compiling on OSF/1 (DEC Alpha), you must use 461 -L/usr/shlib (otherwise it core dumps on startup). You may also 462 need -mld to get the nlist() function, although some versions 463 apparently don't need this. 464 465 Also, the enclosed makefile removed /usr/sbin/smtpd; if you need 466 it, just create the link to the sendmail binary. 467 468NeXT 469 If you are compiling on NeXT, you will have to create an empty 470 file "unistd.h" and create a file "dirent.h" containing: 471 472 #include <sys/dir.h> 473 #define dirent direct 474 475 (The Makefile.NeXT should try to do both of these for you.) 476 477 Apparently, there is a bug in getservbyname on Nextstep 3.0 478 that causes it to fail under some circumstances with the 479 message "SYSERR: service "smtp" unknown" logged. You should 480 be able to work around this by including the line: 481 482 OOPort=25 483 484 in your .cf file. 485 486 You may have to use -DNeXT. 487 488BSDI (BSD/386) 1.0, NetBSD 0.9, FreeBSD 1.0 489 The "m4" from BSDI won't handle the config files properly. 490 I haven't had a chance to test this myself. 491 492 The M4 shipped in FreeBSD and NetBSD 0.9 don't handle the config 493 files properly. One must use either GNU m4 1.1 or the PD-M4 494 recently posted in comp.os.386bsd.bugs (and maybe others). 495 NetBSD-current includes the PD-M4 (as stated in the NetBSD file 496 CHANGES). 497 498 FreeBSD 1.0 RELEASE has uname(2) now. Use -DUSEUNAME in order to 499 use it (look into Makefile.FreeBSD). NetBSD-current may have 500 it too but it has not been verified. 501 502 You cannot port the latest version of the Berkeley db library 503 and use it with sendmail without recompiling the world. This 504 is because C library routines use the older version which have 505 incompatible header files -- the result is that it can't read 506 other system files, such as /etc/passwd, unless you use the 507 new db format throughout your system. You should normally just 508 use the version of db supplied in your release. You may need 509 to use -DOLD_NEWDB to make this work -- this turns off some 510 new interface calls (for file locking) that are not in older 511 versions of db. You'll get compile errors if you need this 512 flag and don't have it set. 513 5144.3BSD 515 If you are running a "virgin" version of 4.3BSD, you'll have 516 a very old resolver and be missing some header files. The 517 header files are simple -- create empty versions and everything 518 will work fine. For the resolver you should really port a new 519 version (4.8.3 or later) of the resolver; 4.9 is available on 520 gatekeeper.DEC.COM in pub/BSD/bind/4.9. If you are really 521 determined to continue to use your old, buggy version (or as 522 a shortcut to get sendmail working -- I'm sure you have the 523 best intentions to port a modern version of BIND), you can 524 copy ../contrib/oldbind.compat.c into src and add 525 oldbind.compat.o to OBJADD in the Makefile. 526 527A/UX 528 Date: Tue, 12 Oct 1993 18:28:28 -0400 (EDT) 529 From: "Eric C. Hagberg" <hagberg@med.cornell.edu> 530 Subject: Fix for A/UX ndbm 531 532 I guess this isn't really a sendmail bug, however, it is something 533 that A/UX users should be aware of when compiling sendmail 8.6. 534 535 Apparently, the calls that sendmail is using to the ndbm routines 536 in A/UX 3.0.x contain calls to "broken" routines, in that the 537 aliases database will break when it gets "just a little big" 538 (sorry I don't have exact numbers here, but it broke somewhere 539 around 20-25 aliases for me.), making all aliases non-functional 540 after exceeding this point. 541 542 What I did was to get the gnu-dbm-1.6 package, compile it, and 543 then re-compile sendmail with "-lgdbm", "-DNDBM", and using the 544 ndbm.h header file that comes with the gnu-package. This makes 545 things behave properly. 546 547 I suppose porting the New Berkeley db package is another route, 548 however, I made a quick attempt at it, and found it difficult 549 (not easy at least); the gnu-dbm package "configured" and 550 compiled easily. 551 552DG/UX 553 Apparently, /bin/mail doesn't work properly for delivery on 554 DG/UX -- the person who has this working, Douglas Anderson 555 <dlander@afterlife.ncsc.mil>, used procmail instead. 556 557Apollo DomainOS 558 If you are compiling on Apollo, you will have to create an empty 559 file "unistd.h" and create a file "dirent.h" containing: 560 561 #include <sys/dir.h> 562 #define dirent direct 563 564 (The Makefile.DomainOS will attempt to do both of these for you.) 565 566HP-UX 8.00 567 Date: Mon, 24 Jan 1994 13:25:45 +0200 568 From: Kimmo Suominen <Kimmo.Suominen@lut.fi> 569 Subject: 8.6.5 w/ HP-UX 8.00 on s300 570 571 Just compiled and fought with sendmail 8.6.5 on a HP9000/360 (ie. a 572 series 300 machine) running HP-UX 8.00. 573 574 I was getting segmentation fault when delivering to a local user. 575 With debugging I saw it was faulting when doing _free@libc... *sigh* 576 It seems the new implementation of malloc on s300 is buggy as of 8.0, 577 so I tried out the one in -lmalloc (malloc(3X)). With that it seems 578 to work just dandy. 579 580 When linking, you will get the following error: 581 582 ld: multiply defined symbol _freespace in file /usr/lib/libmalloc.a 583 584 but you can just ignore it. You might want to add this info to the 585 README file for the future... 586 587Linux 588 Something broke between versions 0.99.13 and 0.99.14 of Linux: 589 the flock() system call gives errors. If you are running .14, 590 you must not use flock. You can do this with -DHASFLOCK=0. 591 592AIX 593 This version of sendmail does not support MB, MG, and MR resource 594 records, which are supported by AIX sendmail. 595 596System V Release 4 Based Systems 597 There is a single Makefile that is intended for all SVR4-based 598 systems (called Makefile.SVR4). It defines __svr4__, which is 599 predefined by some compilers. If your compiler already defines 600 this compile variable, you can delete the definition from the 601 Makefile. 602 603 It's been tested on Dell Issue 2.2. 604 605DELL SVR4 606 Date: Mon, 06 Dec 1993 10:42:29 EST 607 From: "Kimmo Suominen" <kim@grendel.lut.fi> 608 Message-ID: <2d0352f9.lento29@lento29.UUCP> 609 To: eric@cs.berkeley.edu 610 Cc: sendmail@cs.berkeley.edu 611 Subject: Notes for DELL SVR4 612 613 Eric, 614 615 Here are some notes for compiling Sendmail 8.6.4 on DELL SVR4. I ran 616 across these things when helping out some people who contacted me by 617 e-mail. 618 619 1) Use gcc 2.4.5 (or later?). Dell distributes gcc 2.1 with their 620 Issue 2.2 Unix. It is too old, and gives you problems with 621 clock.c, because sigset_t won't get defined in <sys/signal.h>. 622 This is due to a problematic protection rule in there, and is 623 fixed with gcc 2.4.5. 624 625 2) If you don't use the new Berkeley DB (-DNEWDB), then you need 626 to add "-lc -lucb" to the libraries to link with. This is because 627 the -ldbm distributed by Dell needs the bcopy, bcmp and bzero 628 functions. It is important that you specify both libraries in 629 the given order to be sure you only get the BSTRING functions 630 from the UCB library (and not the signal routines etc.). 631 632 3) Don't leave out "-lelf" even if compiling with "-lc -lucb". 633 The UCB library also has another copy of the nlist routines, 634 but we do want the ones from "-lelf". 635 636 If anyone needs a compiled gcc 2.4.5 and/or a ported DB library, they 637 can use anonymous ftp to fetch them from lut.fi in the /kim directory. 638 They are copies of what I use on grendel.lut.fi, and offering them 639 does not imply that I would also support them. I have sent the DB 640 port for SVR4 back to Keith Bostic for inclusion in the official 641 distribution, but I haven't heard anything from him as of today. 642 643 - gcc-2.4.5-svr4.tar.gz (gcc 2.4.5 and the corresponding libg++) 644 - db-1.72.tar.gz (with source, objects and a installed copy) 645 646 Cheers 647 + Kim 648 -- 649 * Kimmo.Suominen@lut.fi * SysVr4 enthusiast at GRENDEL.LUT.FI * 650 * KIM@FINFILES.BITNET * Postmaster and Hostmaster at LUT.FI * 651 * + 358 200 865 718 * Unix area moderator at NIC.FUNET.FI * 652 653 654Non-DNS based sites 655 This version of sendmail always tries to connect to the Domain 656 Name System (DNS) to resolve names, regardless of the setting 657 of the `I' option. On most systems that are not running DNS, 658 this will fail quickly and sendmail will continue, but on some 659 systems it has a long timeout. If you have this problem, you 660 will have to recompile without NAMED_BIND. Some people have 661 claimed that they have successfully used "OI+USEVC" to force 662 sendmail to use a virtual circuit -- this will always time out 663 quickly, but also tells sendmail that a failed connection 664 should requeue the message (probably not what you intended). 665 A future release of sendmail will correct this problem. 666 667Both NEWDB and NDBM 668 If you use both -DNDBM and -DNEWDB, you must delete the module 669 ndbm.o from libdb.a and delete the file "ndbm.h" from the files 670 that get installed (that is, use the OLD ndbm.h, not the new 671 ndbm.h). This compatibility module maps ndbm calls into DB 672 calls, and breaks things rather badly. 673 674GNU getopt 675 I'm told that GNU getopt has a problem in that it gets confused 676 by the double call. Use the version in conf.c instead. 677 678 679+--------------+ 680| MANUAL PAGES | 681+--------------+ 682 683The manual pages have been written against the -mandoc macros 684instead of the -man macros. The latest version of groff has them 685included. You can also get a copy from FTP.UU.NET in directory 686/systems/unix/bsd-sources/share/tmac. 687 688 689+-----------------+ 690| DEBUGGING HOOKS | 691+-----------------+ 692 693As of 8.6.5, sendmail daemons will catch a SIGUSR1 signal and log 694some debugging output (logged at LOG_DEBUG severity). The 695information dumped is: 696 697 * The value of the $j macro. 698 * A warning if $j is not in the set $=w. 699 * A list of the open file descriptors. 700 * The contents of the connection cache. 701 * If ruleset 89 is defined, it is evaluated and the results printed. 702 703This allows you to get information regarding the runtime state of the 704daemon on the fly. This should not be done too frequently, since 705the process of rewriting may lose memory which will not be recovered. 706Also, ruleset 89 may call non-reentrant routines, so there is a small 707non-zero probability that this will cause other problems. It is 708really only for debugging serious problems. 709 710A typical formulation of ruleset 89 would be: 711 712 R$* $@ $>0 some test address 713 714 715+-----------------------------+ 716| DESCRIPTION OF SOURCE FILES | 717+-----------------------------+ 718 719The following list describes the files in this directory: 720 721Makefile The makefile used here; this version only works with 722 the new Berkeley make. 723Makefile.dist A trimmed down version of the makefile that works with 724 the old make. 725READ_ME This file. 726TRACEFLAGS My own personal list of the trace flags -- not guaranteed 727 to be particularly up to date. 728alias.c Does name aliasing in all forms. 729arpadate.c A subroutine which creates ARPANET standard dates. 730clock.c Routines to implement real-time oriented functions 731 in sendmail -- e.g., timeouts. 732collect.c The routine that actually reads the mail into a temp 733 file. It also does a certain amount of parsing of 734 the header, etc. 735conf.c The configuration file. This contains information 736 that is presumed to be quite static and non- 737 controversial, or code compiled in for efficiency 738 reasons. Most of the configuration is in sendmail.cf. 739conf.h Configuration that must be known everywhere. 740convtime.c A routine to sanely process times. 741daemon.c Routines to implement daemon mode. This version is 742 specifically for Berkeley 4.1 IPC. 743deliver.c Routines to deliver mail. 744domain.c Routines that interface with DNS (the Domain Name 745 System). 746err.c Routines to print error messages. 747envelope.c Routines to manipulate the envelope structure. 748headers.c Routines to process message headers. 749macro.c The macro expander. This is used internally to 750 insert information from the configuration file. 751main.c The main routine to sendmail. This file also 752 contains some miscellaneous routines. 753map.c Support for database maps. 754mci.c Routines that handle mail connection information caching. 755parseaddr.c The routines which do address parsing. 756queue.c Routines to implement message queueing. 757readcf.c The routine that reads the configuration file and 758 translates it to internal form. 759recipient.c Routines that manipulate the recipient list. 760savemail.c Routines which save the letter on processing errors. 761sendmail.h Main header file for sendmail. 762srvrsmtp.c Routines to implement server SMTP. 763stab.c Routines to manage the symbol table. 764stats.c Routines to collect and post the statistics. 765sysexits.c List of error messages associated with error codes 766 in sysexits.h. 767trace.c The trace package. These routines allow setting and 768 testing of trace flags with a high granularity. 769udb.c The user database interface module. 770usersmtp.c Routines to implement user SMTP. 771util.c Some general purpose routines used by sendmail. 772version.c The version number and information about this 773 version of sendmail. Theoretically, this gets 774 modified on every change. 775 776Eric Allman 777 778(Version 8.54, last update 03/03/94 08:35:14) 779