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 8.55 (Berkeley) 03/06/94 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. 295BROKEN_RES_SEARCH 296 On Ultrix (and maybe other systems?) if you use the 297 res_search routine with an unknown host name, it returns 298 -1 but sets h_errno to 0 instead of HOST_NOT_FOUND. If 299 you set this, sendmail considers 0 to be the same as 300 HOST_NOT_FOUND. 301 302 303+-----------------------+ 304| COMPILE-TIME FEATURES | 305+-----------------------+ 306 307There are a bunch of features that you can decide to compile in, such 308as selecting various database packages and special protocol support. 309Several are assumed based on other compilation flags -- if you want to 310"un-assume" something, you probably need to edit conf.h. Compilation 311flags that add support for special features include: 312 313NDBM Include support for "new" DBM library for aliases and maps. 314 Normally defined in the Makefile. 315NEWDB Include support for Berkeley "db" package (hash & btree) 316 for aliases and maps. Normally defined in the Makefile. 317NIS Define this to get NIS (YP) support for aliases and maps. 318 Normally defined in the Makefile. 319USERDB Include support for the User Information Database. Implied 320 by NEWDB in conf.h. 321IDENTPROTO Define this as 1 to get IDENT (RFC 1413) protocol support. 322 This is assumed unless you are running on Ultrix or 323 HP-UX, both of which have a problem in the UDP 324 implementation. You can define it to be 0 to explicitly 325 turn off IDENT protocol support. 326MIME Include support for MIME-encapsulated error messages. 327LOG Set this to get syslog(3) support. Defined by default 328 in conf.h. You want this if at all possible. 329NETINET Set this to get TCP/IP support. Defined by default 330 in conf.h. You probably want this. 331NETISO Define this to get ISO networking support. 332SMTP Define this to get the SMTP code. Implied by NETINET 333 or NETISO. 334NAMED_BIND Define this to get DNS (name daemon) support, including 335 MX support. The specs you must use this if you run 336 SMTP. Defined by default in conf.h. 337QUEUE Define this to get queueing code. Implied by NETINET 338 or NETISO; required by SMTP. This gives you other good 339 stuff -- it should be on. 340DAEMON Define this to get general network support. Implied by 341 NETINET or NETISO. Defined by default in conf.h. You 342 almost certainly want it on. 343MATCHGECOS Permit fuzzy matching of user names against the full 344 name (GECOS) field in the /etc/passwd file. This should 345 probably be on, since you can disable it from the config 346 file if you want to. Defined by default in conf.h. 347SETPROCTITLE Try to set the string printed by "ps" to something 348 informative about what sendmail is doing. Defined by 349 default in conf.h. 350 351 352+---------------------+ 353| DNS/RESOLVER ISSUES | 354+---------------------+ 355 356Many systems have old versions of the resolver library. At a minimum, 357you should be running BIND 4.8.3; older versions may compile, but they 358have known bugs that should give you pause. 359 360Common problems in old versions include "undefined" errors for 361dn_skipname. 362 363Some people have had a problem with BIND 4.9; it uses some routines 364that it expects to be externally defined such as strerror(). It may 365help to link with "-l44bsd" to solve this problem. 366 367!PLEASE! be sure to link with the same version of the resolver as 368the header files you used -- some people have used the 4.9 headers 369and linked with BIND 4.8 or vice versa, and it doesn't work. 370Unfortunately, it doesn't fail in an obvious way -- things just 371subtly don't work. 372 373 374+-------------------------------------+ 375| OPERATING SYSTEM AND COMPILE QUIRKS | 376+-------------------------------------+ 377 378GCC 2.5.x problems *** IMPORTANT *** 379 Date: Mon, 29 Nov 93 19:08:44 PST 380 From: wilson@cygnus.com (Jim Wilson) 381 Message-Id: <9311300308.AA04608@cygnus.com> 382 To: kenner@vlsi1.ultra.nyu.edu 383 Subject: [cattelan@thebarn.com: gcc 2.5.4-2.5.5 -O bug] 384 Cc: cattelan@thebarn.com, rms@gnu.ai.mit.edu, sendmail@cs.berkeley.edu 385 386 This fixes a problem that occurs when gcc 2.5.5 is used to compile 387 sendmail 8.6.4 with optimization on a sparc. 388 389 Mon Nov 29 19:00:14 1993 Jim Wilson (wilson@sphagnum.cygnus.com) 390 391 * reload.c (find_reloads_toplev): Replace obsolete reference to 392 BYTE_LOADS_*_EXTEND with LOAD_EXTEND_OP. 393 394 *** clean-ss-931128/reload.c Sun Nov 14 16:20:01 1993 395 --- ss-931128/reload.c Mon Nov 29 18:52:55 1993 396 *************** find_reloads_toplev (x, opnum, type, ind 397 *** 3888,3894 **** 398 force a reload in that case. So we should not do anything here. */ 399 400 else if (regno >= FIRST_PSEUDO_REGISTER 401 ! #if defined(BYTE_LOADS_ZERO_EXTEND) || defined(BYTE_LOADS_SIGN_EXTEND) 402 && (GET_MODE_SIZE (GET_MODE (x)) 403 <= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))) 404 #endif 405 --- 3888,3894 ---- 406 force a reload in that case. So we should not do anything here. */ 407 408 else if (regno >= FIRST_PSEUDO_REGISTER 409 ! #ifdef LOAD_EXTEND_OP 410 && (GET_MODE_SIZE (GET_MODE (x)) 411 <= GET_MODE_SIZE (GET_MODE (SUBREG_REG (x)))) 412 #endif 413 414 415SunOS 4.x (Solaris 1.x) 416 You may have to use -lresolv on SunOS. However, beware that 417 this links in a new version of gethostbyname that does not 418 understand NIS, so you must have all of your hosts in DNS. 419 420 Some people have reported problems with the SunOS version of 421 -lresolv and/or in.named, and suggest that you get a newer 422 version. The symptoms are delays when you connect to the 423 SMTP server on a SunOS machine or having your domain added to 424 addresses inappropriately. There is a version of BIND 425 version 4.9 on gatekeeper.DEC.COM in pub/BSD/bind/4.9. 426 427 There is substantial disagreement about whether you can make 428 this work with resolv+, which allows you to specify a search-path 429 of services. Some people report that it works fine, others 430 claim it doesn't work at all (including causing sendmail to 431 drop core when it tries to do multiple resolv+ lookups for a 432 single job). I haven't tried resolv+, as we use DNS exclusively. 433 434 Should you want to try resolv+, it is on ftp.uu.net in 435 /networking/ip/dns. 436 437Solaris 2.x (SunOS 5.x) 438 To compile for Solaris, be sure you use -DSOLARIS. 439 440 From a correspondent: 441 442 For solaris 2.2, I have 443 444 hosts: files dns 445 446 in /etc/nsswitch.conf and /etc/hosts has to have the fully 447 qualified host name. I think "files" has to be before "dns" 448 in /etc/nsswitch.conf during bootup. 449 450 To the best of my knowledge, Solaris does not have the 451 gethostbyname problem described above. 452 453 The Solaris "syslog" function is apparently limited to something 454 about 90 characters because of a kernel limitation. If you have 455 source code, you can probably up this number. You can get patches 456 that fix this problem: the patch ids are: 457 458 Solaris 2.1 100834 459 Solaris 2.2 100999 460 Solaris 2.3 101318 461 462 Be sure you have the appropriate patch installed or you won't 463 see system logging. 464 465OSF/1 466 If you are compiling on OSF/1 (DEC Alpha), you must use 467 -L/usr/shlib (otherwise it core dumps on startup). You may also 468 need -mld to get the nlist() function, although some versions 469 apparently don't need this. 470 471 Also, the enclosed makefile removed /usr/sbin/smtpd; if you need 472 it, just create the link to the sendmail binary. 473 474NeXT 475 If you are compiling on NeXT, you will have to create an empty 476 file "unistd.h" and create a file "dirent.h" containing: 477 478 #include <sys/dir.h> 479 #define dirent direct 480 481 (The Makefile.NeXT should try to do both of these for you.) 482 483 Apparently, there is a bug in getservbyname on Nextstep 3.0 484 that causes it to fail under some circumstances with the 485 message "SYSERR: service "smtp" unknown" logged. You should 486 be able to work around this by including the line: 487 488 OOPort=25 489 490 in your .cf file. 491 492 You may have to use -DNeXT. 493 494BSDI (BSD/386) 1.0, NetBSD 0.9, FreeBSD 1.0 495 The "m4" from BSDI won't handle the config files properly. 496 I haven't had a chance to test this myself. 497 498 The M4 shipped in FreeBSD and NetBSD 0.9 don't handle the config 499 files properly. One must use either GNU m4 1.1 or the PD-M4 500 recently posted in comp.os.386bsd.bugs (and maybe others). 501 NetBSD-current includes the PD-M4 (as stated in the NetBSD file 502 CHANGES). 503 504 FreeBSD 1.0 RELEASE has uname(2) now. Use -DUSEUNAME in order to 505 use it (look into Makefile.FreeBSD). NetBSD-current may have 506 it too but it has not been verified. 507 508 You cannot port the latest version of the Berkeley db library 509 and use it with sendmail without recompiling the world. This 510 is because C library routines use the older version which have 511 incompatible header files -- the result is that it can't read 512 other system files, such as /etc/passwd, unless you use the 513 new db format throughout your system. You should normally just 514 use the version of db supplied in your release. You may need 515 to use -DOLD_NEWDB to make this work -- this turns off some 516 new interface calls (for file locking) that are not in older 517 versions of db. You'll get compile errors if you need this 518 flag and don't have it set. 519 5204.3BSD 521 If you are running a "virgin" version of 4.3BSD, you'll have 522 a very old resolver and be missing some header files. The 523 header files are simple -- create empty versions and everything 524 will work fine. For the resolver you should really port a new 525 version (4.8.3 or later) of the resolver; 4.9 is available on 526 gatekeeper.DEC.COM in pub/BSD/bind/4.9. If you are really 527 determined to continue to use your old, buggy version (or as 528 a shortcut to get sendmail working -- I'm sure you have the 529 best intentions to port a modern version of BIND), you can 530 copy ../contrib/oldbind.compat.c into src and add 531 oldbind.compat.o to OBJADD in the Makefile. 532 533A/UX 534 Date: Tue, 12 Oct 1993 18:28:28 -0400 (EDT) 535 From: "Eric C. Hagberg" <hagberg@med.cornell.edu> 536 Subject: Fix for A/UX ndbm 537 538 I guess this isn't really a sendmail bug, however, it is something 539 that A/UX users should be aware of when compiling sendmail 8.6. 540 541 Apparently, the calls that sendmail is using to the ndbm routines 542 in A/UX 3.0.x contain calls to "broken" routines, in that the 543 aliases database will break when it gets "just a little big" 544 (sorry I don't have exact numbers here, but it broke somewhere 545 around 20-25 aliases for me.), making all aliases non-functional 546 after exceeding this point. 547 548 What I did was to get the gnu-dbm-1.6 package, compile it, and 549 then re-compile sendmail with "-lgdbm", "-DNDBM", and using the 550 ndbm.h header file that comes with the gnu-package. This makes 551 things behave properly. 552 553 I suppose porting the New Berkeley db package is another route, 554 however, I made a quick attempt at it, and found it difficult 555 (not easy at least); the gnu-dbm package "configured" and 556 compiled easily. 557 558DG/UX 559 Apparently, /bin/mail doesn't work properly for delivery on 560 DG/UX -- the person who has this working, Douglas Anderson 561 <dlander@afterlife.ncsc.mil>, used procmail instead. 562 563Apollo DomainOS 564 If you are compiling on Apollo, you will have to create an empty 565 file "unistd.h" and create a file "dirent.h" containing: 566 567 #include <sys/dir.h> 568 #define dirent direct 569 570 (The Makefile.DomainOS will attempt to do both of these for you.) 571 572HP-UX 8.00 573 Date: Mon, 24 Jan 1994 13:25:45 +0200 574 From: Kimmo Suominen <Kimmo.Suominen@lut.fi> 575 Subject: 8.6.5 w/ HP-UX 8.00 on s300 576 577 Just compiled and fought with sendmail 8.6.5 on a HP9000/360 (ie. a 578 series 300 machine) running HP-UX 8.00. 579 580 I was getting segmentation fault when delivering to a local user. 581 With debugging I saw it was faulting when doing _free@libc... *sigh* 582 It seems the new implementation of malloc on s300 is buggy as of 8.0, 583 so I tried out the one in -lmalloc (malloc(3X)). With that it seems 584 to work just dandy. 585 586 When linking, you will get the following error: 587 588 ld: multiply defined symbol _freespace in file /usr/lib/libmalloc.a 589 590 but you can just ignore it. You might want to add this info to the 591 README file for the future... 592 593Linux 594 Something broke between versions 0.99.13 and 0.99.14 of Linux: 595 the flock() system call gives errors. If you are running .14, 596 you must not use flock. You can do this with -DHASFLOCK=0. 597 598AIX 599 This version of sendmail does not support MB, MG, and MR resource 600 records, which are supported by AIX sendmail. 601 602System V Release 4 Based Systems 603 There is a single Makefile that is intended for all SVR4-based 604 systems (called Makefile.SVR4). It defines __svr4__, which is 605 predefined by some compilers. If your compiler already defines 606 this compile variable, you can delete the definition from the 607 Makefile. 608 609 It's been tested on Dell Issue 2.2. 610 611DELL SVR4 612 Date: Mon, 06 Dec 1993 10:42:29 EST 613 From: "Kimmo Suominen" <kim@grendel.lut.fi> 614 Message-ID: <2d0352f9.lento29@lento29.UUCP> 615 To: eric@cs.berkeley.edu 616 Cc: sendmail@cs.berkeley.edu 617 Subject: Notes for DELL SVR4 618 619 Eric, 620 621 Here are some notes for compiling Sendmail 8.6.4 on DELL SVR4. I ran 622 across these things when helping out some people who contacted me by 623 e-mail. 624 625 1) Use gcc 2.4.5 (or later?). Dell distributes gcc 2.1 with their 626 Issue 2.2 Unix. It is too old, and gives you problems with 627 clock.c, because sigset_t won't get defined in <sys/signal.h>. 628 This is due to a problematic protection rule in there, and is 629 fixed with gcc 2.4.5. 630 631 2) If you don't use the new Berkeley DB (-DNEWDB), then you need 632 to add "-lc -lucb" to the libraries to link with. This is because 633 the -ldbm distributed by Dell needs the bcopy, bcmp and bzero 634 functions. It is important that you specify both libraries in 635 the given order to be sure you only get the BSTRING functions 636 from the UCB library (and not the signal routines etc.). 637 638 3) Don't leave out "-lelf" even if compiling with "-lc -lucb". 639 The UCB library also has another copy of the nlist routines, 640 but we do want the ones from "-lelf". 641 642 If anyone needs a compiled gcc 2.4.5 and/or a ported DB library, they 643 can use anonymous ftp to fetch them from lut.fi in the /kim directory. 644 They are copies of what I use on grendel.lut.fi, and offering them 645 does not imply that I would also support them. I have sent the DB 646 port for SVR4 back to Keith Bostic for inclusion in the official 647 distribution, but I haven't heard anything from him as of today. 648 649 - gcc-2.4.5-svr4.tar.gz (gcc 2.4.5 and the corresponding libg++) 650 - db-1.72.tar.gz (with source, objects and a installed copy) 651 652 Cheers 653 + Kim 654 -- 655 * Kimmo.Suominen@lut.fi * SysVr4 enthusiast at GRENDEL.LUT.FI * 656 * KIM@FINFILES.BITNET * Postmaster and Hostmaster at LUT.FI * 657 * + 358 200 865 718 * Unix area moderator at NIC.FUNET.FI * 658 659 660Non-DNS based sites 661 This version of sendmail always tries to connect to the Domain 662 Name System (DNS) to resolve names, regardless of the setting 663 of the `I' option. On most systems that are not running DNS, 664 this will fail quickly and sendmail will continue, but on some 665 systems it has a long timeout. If you have this problem, you 666 will have to recompile without NAMED_BIND. Some people have 667 claimed that they have successfully used "OI+USEVC" to force 668 sendmail to use a virtual circuit -- this will always time out 669 quickly, but also tells sendmail that a failed connection 670 should requeue the message (probably not what you intended). 671 A future release of sendmail will correct this problem. 672 673Both NEWDB and NDBM 674 If you use both -DNDBM and -DNEWDB, you must delete the module 675 ndbm.o from libdb.a and delete the file "ndbm.h" from the files 676 that get installed (that is, use the OLD ndbm.h, not the new 677 ndbm.h). This compatibility module maps ndbm calls into DB 678 calls, and breaks things rather badly. 679 680GNU getopt 681 I'm told that GNU getopt has a problem in that it gets confused 682 by the double call. Use the version in conf.c instead. 683 684 685+--------------+ 686| MANUAL PAGES | 687+--------------+ 688 689The manual pages have been written against the -mandoc macros 690instead of the -man macros. The latest version of groff has them 691included. You can also get a copy from FTP.UU.NET in directory 692/systems/unix/bsd-sources/share/tmac. 693 694 695+-----------------+ 696| DEBUGGING HOOKS | 697+-----------------+ 698 699As of 8.6.5, sendmail daemons will catch a SIGUSR1 signal and log 700some debugging output (logged at LOG_DEBUG severity). The 701information dumped is: 702 703 * The value of the $j macro. 704 * A warning if $j is not in the set $=w. 705 * A list of the open file descriptors. 706 * The contents of the connection cache. 707 * If ruleset 89 is defined, it is evaluated and the results printed. 708 709This allows you to get information regarding the runtime state of the 710daemon on the fly. This should not be done too frequently, since 711the process of rewriting may lose memory which will not be recovered. 712Also, ruleset 89 may call non-reentrant routines, so there is a small 713non-zero probability that this will cause other problems. It is 714really only for debugging serious problems. 715 716A typical formulation of ruleset 89 would be: 717 718 R$* $@ $>0 some test address 719 720 721+-----------------------------+ 722| DESCRIPTION OF SOURCE FILES | 723+-----------------------------+ 724 725The following list describes the files in this directory: 726 727Makefile The makefile used here; this version only works with 728 the new Berkeley make. 729Makefile.dist A trimmed down version of the makefile that works with 730 the old make. 731READ_ME This file. 732TRACEFLAGS My own personal list of the trace flags -- not guaranteed 733 to be particularly up to date. 734alias.c Does name aliasing in all forms. 735arpadate.c A subroutine which creates ARPANET standard dates. 736clock.c Routines to implement real-time oriented functions 737 in sendmail -- e.g., timeouts. 738collect.c The routine that actually reads the mail into a temp 739 file. It also does a certain amount of parsing of 740 the header, etc. 741conf.c The configuration file. This contains information 742 that is presumed to be quite static and non- 743 controversial, or code compiled in for efficiency 744 reasons. Most of the configuration is in sendmail.cf. 745conf.h Configuration that must be known everywhere. 746convtime.c A routine to sanely process times. 747daemon.c Routines to implement daemon mode. This version is 748 specifically for Berkeley 4.1 IPC. 749deliver.c Routines to deliver mail. 750domain.c Routines that interface with DNS (the Domain Name 751 System). 752err.c Routines to print error messages. 753envelope.c Routines to manipulate the envelope structure. 754headers.c Routines to process message headers. 755macro.c The macro expander. This is used internally to 756 insert information from the configuration file. 757main.c The main routine to sendmail. This file also 758 contains some miscellaneous routines. 759map.c Support for database maps. 760mci.c Routines that handle mail connection information caching. 761parseaddr.c The routines which do address parsing. 762queue.c Routines to implement message queueing. 763readcf.c The routine that reads the configuration file and 764 translates it to internal form. 765recipient.c Routines that manipulate the recipient list. 766savemail.c Routines which save the letter on processing errors. 767sendmail.h Main header file for sendmail. 768srvrsmtp.c Routines to implement server SMTP. 769stab.c Routines to manage the symbol table. 770stats.c Routines to collect and post the statistics. 771sysexits.c List of error messages associated with error codes 772 in sysexits.h. 773trace.c The trace package. These routines allow setting and 774 testing of trace flags with a high granularity. 775udb.c The user database interface module. 776usersmtp.c Routines to implement user SMTP. 777util.c Some general purpose routines used by sendmail. 778version.c The version number and information about this 779 version of sendmail. Theoretically, this gets 780 modified on every change. 781 782Eric Allman 783 784(Version 8.55, last update 03/06/94 09:06:08) 785