diff options
Diffstat (limited to 'contrib/sendmail/src/main.c')
| -rw-r--r-- | contrib/sendmail/src/main.c | 4354 |
1 files changed, 0 insertions, 4354 deletions
diff --git a/contrib/sendmail/src/main.c b/contrib/sendmail/src/main.c deleted file mode 100644 index fd981fc95be27..0000000000000 --- a/contrib/sendmail/src/main.c +++ /dev/null @@ -1,4354 +0,0 @@ -/* - * Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers. - * All rights reserved. - * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * By using this file, you agree to the terms and conditions set - * forth in the LICENSE file which can be found at the top level of - * the sendmail distribution. - * - */ - -#define _DEFINE -#include <sendmail.h> -#include <sm/xtrap.h> -#include <sm/signal.h> - -#ifndef lint -SM_UNUSED(static char copyright[]) = -"@(#) Copyright (c) 1998-2001 Sendmail, Inc. and its suppliers.\n\ - All rights reserved.\n\ - Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved.\n\ - Copyright (c) 1988, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* ! lint */ - -SM_RCSID("@(#)$Id: main.c,v 8.887.2.12 2002/12/05 17:38:44 ca Exp $") - - -#if NETINET || NETINET6 -# include <arpa/inet.h> -#endif /* NETINET || NETINET6 */ - -/* for getcfname() */ -#include <sendmail/pathnames.h> - -static SM_DEBUG_T -DebugNoPRestart = SM_DEBUG_INITIALIZER("no_persistent_restart", - "@(#)$Debug: no_persistent_restart - don't restart, log only $"); - -static void dump_class __P((STAB *, int)); -static void obsolete __P((char **)); -static void testmodeline __P((char *, ENVELOPE *)); -static char *getextenv __P((const char *)); -static void sm_printoptions __P((char **)); -static SIGFUNC_DECL intindebug __P((int)); -static SIGFUNC_DECL sighup __P((int)); -static SIGFUNC_DECL sigpipe __P((int)); -static SIGFUNC_DECL sigterm __P((int)); -#ifdef SIGUSR1 -static SIGFUNC_DECL sigusr1 __P((int)); -#endif /* SIGUSR1 */ - -/* -** SENDMAIL -- Post mail to a set of destinations. -** -** This is the basic mail router. All user mail programs should -** call this routine to actually deliver mail. Sendmail in -** turn calls a bunch of mail servers that do the real work of -** delivering the mail. -** -** Sendmail is driven by settings read in from /etc/mail/sendmail.cf -** (read by readcf.c). -** -** Usage: -** /usr/lib/sendmail [flags] addr ... -** -** See the associated documentation for details. -** -** Authors: -** Eric Allman, UCB/INGRES (until 10/81). -** Britton-Lee, Inc., purveyors of fine -** database computers (11/81 - 10/88). -** International Computer Science Institute -** (11/88 - 9/89). -** UCB/Mammoth Project (10/89 - 7/95). -** InReference, Inc. (8/95 - 1/97). -** Sendmail, Inc. (1/98 - present). -** The support of the my employers is gratefully acknowledged. -** Few of them (Britton-Lee in particular) have had -** anything to gain from my involvement in this project. -** -** Gregory Neil Shapiro, -** Worcester Polytechnic Institute (until 3/98). -** Sendmail, Inc. (3/98 - present). -** -** Claus Assmann, -** Sendmail, Inc. (12/98 - present). -*/ - -char *FullName; /* sender's full name */ -ENVELOPE BlankEnvelope; /* a "blank" envelope */ -static ENVELOPE MainEnvelope; /* the envelope around the basic letter */ -ADDRESS NullAddress = /* a null address */ - { "", "", NULL, "" }; -char *CommandLineArgs; /* command line args for pid file */ -bool Warn_Q_option = false; /* warn about Q option use */ -static int MissingFds = 0; /* bit map of fds missing on startup */ -char *Mbdb = "pw"; /* mailbox database defaults to /etc/passwd */ - -#ifdef NGROUPS_MAX -GIDSET_T InitialGidSet[NGROUPS_MAX]; -#endif /* NGROUPS_MAX */ - -#define MAXCONFIGLEVEL 10 /* highest config version level known */ - -#if SASL -static sasl_callback_t srvcallbacks[] = -{ - { SASL_CB_VERIFYFILE, &safesaslfile, NULL }, - { SASL_CB_PROXY_POLICY, &proxy_policy, NULL }, - { SASL_CB_LIST_END, NULL, NULL } -}; -#endif /* SASL */ - -unsigned int SubmitMode; -int SyslogPrefixLen; /* estimated length of syslog prefix */ -#define PIDLEN 6 /* pid length for computing SyslogPrefixLen */ -#ifndef SL_FUDGE -# define SL_FUDGE 10 /* fudge offset for SyslogPrefixLen */ -#endif /* ! SL_FUDGE */ -#define SLDLL 8 /* est. length of default syslog label */ - - -/* Some options are dangerous to allow users to use in non-submit mode */ -#define CHECK_AGAINST_OPMODE(cmd) \ -{ \ - if (extraprivs && \ - OpMode != MD_DELIVER && OpMode != MD_SMTP && \ - OpMode != MD_VERIFY && OpMode != MD_TEST) \ - { \ - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, \ - "WARNING: Ignoring submission mode -%c option (not in submission mode)\n", \ - (cmd)); \ - break; \ - } \ - if (extraprivs && queuerun) \ - { \ - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, \ - "WARNING: Ignoring submission mode -%c option with -q\n", \ - (cmd)); \ - break; \ - } \ -} - -int -main(argc, argv, envp) - int argc; - char **argv; - char **envp; -{ - register char *p; - char **av; - extern char Version[]; - char *ep, *from; - STAB *st; - register int i; - int j; - int dp; - int fill_errno; - int qgrp = NOQGRP; /* queue group to process */ - bool safecf = true; - BITMAP256 *p_flags = NULL; /* daemon flags */ - bool warn_C_flag = false; - bool auth = true; /* whether to set e_auth_param */ - char warn_f_flag = '\0'; - bool run_in_foreground = false; /* -bD mode */ - bool queuerun = false, debug = false; - struct passwd *pw; - struct hostent *hp; - char *nullserver = NULL; - char *authinfo = NULL; - char *sysloglabel = NULL; /* label for syslog */ - char *conffile = NULL; /* name of .cf file */ - char *queuegroup = NULL; /* queue group to process */ -#if _FFR_QUARANTINE - char *quarantining = NULL; /* quarantine queue items? */ -#endif /* _FFR_QUARANTINE */ - bool extraprivs; - bool forged, negate; - bool queuepersistent = false; /* queue runner process runs forever */ - bool foregroundqueue = false; /* queue run in foreground */ - bool save_val; /* to save some bool var. */ - int cftype; /* which cf file to use? */ - static time_t starttime = 0; /* when was process started */ - struct stat traf_st; /* for TrafficLog FIFO check */ - char buf[MAXLINE]; - char jbuf[MAXHOSTNAMELEN]; /* holds MyHostName */ - static char rnamebuf[MAXNAME]; /* holds RealUserName */ - char *emptyenviron[1]; -#if STARTTLS - bool tls_ok; -#endif /* STARTTLS */ - QUEUE_CHAR *new; - ENVELOPE *e; - extern int DtableSize; - extern int optind; - extern int opterr; - extern char *optarg; - extern char **environ; -#if SASL - extern void sm_sasl_init __P((void)); -#endif /* SASL */ - -#if USE_ENVIRON - envp = environ; -#endif /* USE_ENVIRON */ - - /* turn off profiling */ - SM_PROF(0); - - /* install default exception handler */ - sm_exc_newthread(fatal_error); - - /* set the default in/out channel so errors reported to screen */ - InChannel = smioin; - OutChannel = smioout; - - /* - ** Check to see if we reentered. - ** This would normally happen if e_putheader or e_putbody - ** were NULL when invoked. - */ - - if (starttime != 0) - { - syserr("main: reentered!"); - abort(); - } - starttime = curtime(); - - /* avoid null pointer dereferences */ - TermEscape.te_rv_on = TermEscape.te_rv_off = ""; - - RealUid = getuid(); - RealGid = getgid(); - - /* Check if sendmail is running with extra privs */ - extraprivs = (RealUid != 0 && - (geteuid() != getuid() || getegid() != getgid())); - - CurrentPid = getpid(); - - /* get whatever .cf file is right for the opmode */ - cftype = SM_GET_RIGHT_CF; - - /* in 4.4BSD, the table can be huge; impose a reasonable limit */ - DtableSize = getdtsize(); - if (DtableSize > 256) - DtableSize = 256; - - /* - ** Be sure we have enough file descriptors. - ** But also be sure that 0, 1, & 2 are open. - */ - - /* reset errno and fill_errno; the latter is used way down below */ - errno = fill_errno = 0; - fill_fd(STDIN_FILENO, NULL); - if (errno != 0) - fill_errno = errno; - fill_fd(STDOUT_FILENO, NULL); - if (errno != 0) - fill_errno = errno; - fill_fd(STDERR_FILENO, NULL); - if (errno != 0) - fill_errno = errno; - - i = DtableSize; - while (--i > 0) - { - if (i != STDIN_FILENO && i != STDOUT_FILENO && - i != STDERR_FILENO) - (void) close(i); - } - errno = 0; - -#if LOG -# ifndef SM_LOG_STR -# define SM_LOG_STR "sendmail" -# endif /* ! SM_LOG_STR */ -# ifdef LOG_MAIL - openlog(SM_LOG_STR, LOG_PID, LOG_MAIL); -# else /* LOG_MAIL */ - openlog(SM_LOG_STR, LOG_PID); -# endif /* LOG_MAIL */ -#endif /* LOG */ - - /* - ** Seed the random number generator. - ** Used for queue file names, picking a queue directory, and - ** MX randomization. - */ - - seed_random(); - - /* do machine-dependent initializations */ - init_md(argc, argv); - - - SyslogPrefixLen = PIDLEN + (MAXQFNAME - 3) + SL_FUDGE + SLDLL; - - /* reset status from syserr() calls for missing file descriptors */ - Errors = 0; - ExitStat = EX_OK; - - SubmitMode = SUBMIT_UNKNOWN; -#if XDEBUG - checkfd012("after openlog"); -#endif /* XDEBUG */ - - tTsetup(tTdvect, sizeof tTdvect, "0-99.1,*_trace_*.1"); - -#ifdef NGROUPS_MAX - /* save initial group set for future checks */ - i = getgroups(NGROUPS_MAX, InitialGidSet); - if (i <= 0) - { - InitialGidSet[0] = (GID_T) -1; - i = 0; - } - while (i < NGROUPS_MAX) - InitialGidSet[i++] = InitialGidSet[0]; -#endif /* NGROUPS_MAX */ - - /* drop group id privileges (RunAsUser not yet set) */ - dp = drop_privileges(false); - setstat(dp); - -#ifdef SIGUSR1 - /* Only allow root (or non-set-*-ID binaries) to use SIGUSR1 */ - if (!extraprivs) - { - /* arrange to dump state on user-1 signal */ - (void) sm_signal(SIGUSR1, sigusr1); - } - else - { - /* ignore user-1 signal */ - (void) sm_signal(SIGUSR1, SIG_IGN); - } -#endif /* SIGUSR1 */ - - /* initialize for setproctitle */ - initsetproctitle(argc, argv, envp); - - /* Handle any non-getoptable constructions. */ - obsolete(argv); - - /* - ** Do a quick prescan of the argument list. - */ - - - /* find initial opMode */ - OpMode = MD_DELIVER; - av = argv; - p = strrchr(*av, '/'); - if (p++ == NULL) - p = *av; - if (strcmp(p, "newaliases") == 0) - OpMode = MD_INITALIAS; - else if (strcmp(p, "mailq") == 0) - OpMode = MD_PRINT; - else if (strcmp(p, "smtpd") == 0) - OpMode = MD_DAEMON; - else if (strcmp(p, "hoststat") == 0) - OpMode = MD_HOSTSTAT; - else if (strcmp(p, "purgestat") == 0) - OpMode = MD_PURGESTAT; - -#if _FFR_QUARANTINE -# if defined(__osf__) || defined(_AIX3) -# define OPTIONS "A:B:b:C:cd:e:F:f:Gh:IiL:M:mN:nO:o:p:q:R:r:sTtV:vX:xQ:" -# endif /* defined(__osf__) || defined(_AIX3) */ -# if defined(sony_news) -# define OPTIONS "A:B:b:C:cd:E:e:F:f:Gh:IiJ:L:M:mN:nO:o:p:q:R:r:sTtV:vX:Q:" -# endif /* defined(sony_news) */ -# ifndef OPTIONS -# define OPTIONS "A:B:b:C:cd:e:F:f:Gh:IiL:M:mN:nO:o:p:q:R:r:sTtV:vX:Q:" -# endif /* ! OPTIONS */ -#else /* _FFR_QUARANTINE */ -# if defined(__osf__) || defined(_AIX3) -# define OPTIONS "A:B:b:C:cd:e:F:f:Gh:IiL:M:mN:nO:o:p:q:R:r:sTtV:vX:x" -# endif /* defined(__osf__) || defined(_AIX3) */ -# if defined(sony_news) -# define OPTIONS "A:B:b:C:cd:E:e:F:f:Gh:IiJ:L:M:mN:nO:o:p:q:R:r:sTtV:vX:" -# endif /* defined(sony_news) */ -# ifndef OPTIONS -# define OPTIONS "A:B:b:C:cd:e:F:f:Gh:IiL:M:mN:nO:o:p:q:R:r:sTtV:vX:" -# endif /* ! OPTIONS */ -#endif /* _FFR_QUARANTINE */ - - opterr = 0; - while ((j = getopt(argc, argv, OPTIONS)) != -1) - { - switch (j) - { - case 'b': /* operations mode */ - j = (optarg == NULL) ? ' ' : *optarg; - switch (j) - { - case MD_DAEMON: - case MD_FGDAEMON: - case MD_SMTP: - case MD_INITALIAS: - case MD_DELIVER: - case MD_VERIFY: - case MD_TEST: - case MD_PRINT: - case MD_PRINTNQE: - case MD_HOSTSTAT: - case MD_PURGESTAT: - case MD_ARPAFTP: - OpMode = j; - break; - - case MD_FREEZE: - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Frozen configurations unsupported\n"); - return EX_USAGE; - - default: - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Invalid operation mode %c\n", - j); - return EX_USAGE; - } - break; - - case 'd': - debug = true; - tTflag(optarg); - (void) sm_io_setvbuf(smioout, SM_TIME_DEFAULT, - (char *) NULL, SM_IO_NBF, - SM_IO_BUFSIZ); - break; - - case 'G': /* relay (gateway) submission */ - SubmitMode = SUBMIT_MTA; - break; - - case 'L': - j = SM_MIN(strlen(optarg), 24) + 1; - sysloglabel = xalloc(j); - (void) sm_strlcpy(sysloglabel, optarg, j); - SyslogPrefixLen = PIDLEN + (MAXQFNAME - 3) + - SL_FUDGE + j; - break; - -#if _FFR_QUARANTINE - case 'Q': -#endif /* _FFR_QUARANTINE */ - case 'q': - /* just check if it is there */ - queuerun = true; - break; - } - } - opterr = 1; - - /* Don't leak queue information via debug flags */ - if (extraprivs && queuerun && debug) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "WARNING: Can not use -d with -q. Disabling debugging.\n"); - sm_debug_setfile(NULL); - (void) memset(tTdvect, '\0', sizeof tTdvect); - } - -#if LOG - if (sysloglabel != NULL) - { - /* Sanitize the string */ - for (p = sysloglabel; *p != '\0'; p++) - { - if (!isascii(*p) || !isprint(*p) || *p == '%') - *p = '*'; - } - closelog(); -# ifdef LOG_MAIL - openlog(sysloglabel, LOG_PID, LOG_MAIL); -# else /* LOG_MAIL */ - openlog(sysloglabel, LOG_PID); -# endif /* LOG_MAIL */ - } -#endif /* LOG */ - - /* set up the blank envelope */ - BlankEnvelope.e_puthdr = putheader; - BlankEnvelope.e_putbody = putbody; - BlankEnvelope.e_xfp = NULL; - STRUCTCOPY(NullAddress, BlankEnvelope.e_from); - CurEnv = &BlankEnvelope; - STRUCTCOPY(NullAddress, MainEnvelope.e_from); - - /* - ** Set default values for variables. - ** These cannot be in initialized data space. - */ - - setdefaults(&BlankEnvelope); - initmacros(&BlankEnvelope); - - /* reset macro */ - set_op_mode(OpMode); - - pw = sm_getpwuid(RealUid); - if (pw != NULL) - (void) sm_strlcpy(rnamebuf, pw->pw_name, sizeof rnamebuf); - else - (void) sm_snprintf(rnamebuf, sizeof rnamebuf, "Unknown UID %d", - (int) RealUid); - - RealUserName = rnamebuf; - - if (tTd(0, 101)) - { - sm_dprintf("Version %s\n", Version); - finis(false, true, EX_OK); - /* NOTREACHED */ - } - - /* - ** if running non-set-user-ID binary as non-root, pretend - ** we are the RunAsUid - */ - - if (RealUid != 0 && geteuid() == RealUid) - { - if (tTd(47, 1)) - sm_dprintf("Non-set-user-ID binary: RunAsUid = RealUid = %d\n", - (int) RealUid); - RunAsUid = RealUid; - } - else if (geteuid() != 0) - RunAsUid = geteuid(); - - EffGid = getegid(); - if (RealUid != 0 && EffGid == RealGid) - RunAsGid = RealGid; - - if (tTd(47, 5)) - { - sm_dprintf("main: e/ruid = %d/%d e/rgid = %d/%d\n", - (int) geteuid(), (int) getuid(), - (int) getegid(), (int) getgid()); - sm_dprintf("main: RunAsUser = %d:%d\n", - (int) RunAsUid, (int) RunAsGid); - } - - /* save command line arguments */ - j = 0; - for (av = argv; *av != NULL; ) - j += strlen(*av++) + 1; - SaveArgv = (char **) xalloc(sizeof (char *) * (argc + 1)); - CommandLineArgs = xalloc(j); - p = CommandLineArgs; - for (av = argv, i = 0; *av != NULL; ) - { - int h; - - SaveArgv[i++] = newstr(*av); - if (av != argv) - *p++ = ' '; - (void) sm_strlcpy(p, *av++, j); - h = strlen(p); - p += h; - j -= h + 1; - } - SaveArgv[i] = NULL; - - if (tTd(0, 1)) - { - extern char *CompileOptions[]; - - sm_dprintf("Version %s\n Compiled with:", Version); - sm_printoptions(CompileOptions); - } - if (tTd(0, 10)) - { - extern char *OsCompileOptions[]; - - sm_dprintf(" OS Defines:"); - sm_printoptions(OsCompileOptions); -#ifdef _PATH_UNIX - sm_dprintf("Kernel symbols:\t%s\n", _PATH_UNIX); -#endif /* _PATH_UNIX */ - - sm_dprintf(" Conf file:\t%s (default for MSP)\n", - getcfname(OpMode, SubmitMode, SM_GET_SUBMIT_CF, - conffile)); - sm_dprintf(" Conf file:\t%s (default for MTA)\n", - getcfname(OpMode, SubmitMode, SM_GET_SENDMAIL_CF, - conffile)); - sm_dprintf(" Pid file:\t%s (default)\n", PidFile); - } - - if (tTd(0, 12)) - { - extern char *SmCompileOptions[]; - - sm_dprintf(" libsm Defines:"); - sm_printoptions(SmCompileOptions); - } - - if (tTd(0, 13)) - { - extern char *FFRCompileOptions[]; - - sm_dprintf(" FFR Defines:"); - sm_printoptions(FFRCompileOptions); - } - - /* clear sendmail's environment */ - ExternalEnviron = environ; - emptyenviron[0] = NULL; - environ = emptyenviron; - - /* - ** restore any original TZ setting until TimeZoneSpec has been - ** determined - or early log messages may get bogus time stamps - */ - - if ((p = getextenv("TZ")) != NULL) - { - char *tz; - int tzlen; - - /* XXX check for reasonable length? */ - tzlen = strlen(p) + 4; - tz = xalloc(tzlen); - (void) sm_strlcpyn(tz, tzlen, 2, "TZ=", p); - - /* XXX check return code? */ - (void) putenv(tz); - } - - /* prime the child environment */ - setuserenv("AGENT", "sendmail"); - - (void) sm_signal(SIGPIPE, SIG_IGN); - OldUmask = umask(022); - FullName = getextenv("NAME"); - if (FullName != NULL) - FullName = newstr(FullName); - - /* - ** Initialize name server if it is going to be used. - */ - -#if NAMED_BIND - if (!bitset(RES_INIT, _res.options)) - (void) res_init(); - if (tTd(8, 8)) - _res.options |= RES_DEBUG; - else - _res.options &= ~RES_DEBUG; -# ifdef RES_NOALIASES - if (bitset(RES_NOALIASES, _res.options)) - ResNoAliases = true; - _res.options |= RES_NOALIASES; -# endif /* RES_NOALIASES */ - TimeOuts.res_retry[RES_TO_DEFAULT] = _res.retry; - TimeOuts.res_retry[RES_TO_FIRST] = _res.retry; - TimeOuts.res_retry[RES_TO_NORMAL] = _res.retry; - TimeOuts.res_retrans[RES_TO_DEFAULT] = _res.retrans; - TimeOuts.res_retrans[RES_TO_FIRST] = _res.retrans; - TimeOuts.res_retrans[RES_TO_NORMAL] = _res.retrans; -#endif /* NAMED_BIND */ - - errno = 0; - from = NULL; - - /* initialize some macros, etc. */ - init_vendor_macros(&BlankEnvelope); - - /* version */ - macdefine(&BlankEnvelope.e_macro, A_PERM, 'v', Version); - - /* hostname */ - hp = myhostname(jbuf, sizeof jbuf); - if (jbuf[0] != '\0') - { - struct utsname utsname; - - if (tTd(0, 4)) - sm_dprintf("Canonical name: %s\n", jbuf); - macdefine(&BlankEnvelope.e_macro, A_TEMP, 'w', jbuf); - macdefine(&BlankEnvelope.e_macro, A_TEMP, 'j', jbuf); - setclass('w', jbuf); - - p = strchr(jbuf, '.'); - if (p != NULL) - { - if (p[1] != '\0') - { - macdefine(&BlankEnvelope.e_macro, A_TEMP, 'm', - &p[1]); - } - while (p != NULL && strchr(&p[1], '.') != NULL) - { - *p = '\0'; - if (tTd(0, 4)) - sm_dprintf("\ta.k.a.: %s\n", jbuf); - setclass('w', jbuf); - *p++ = '.'; - p = strchr(p, '.'); - } - } - - if (uname(&utsname) >= 0) - p = utsname.nodename; - else - { - if (tTd(0, 22)) - sm_dprintf("uname failed (%s)\n", - sm_errstring(errno)); - makelower(jbuf); - p = jbuf; - } - if (tTd(0, 4)) - sm_dprintf(" UUCP nodename: %s\n", p); - macdefine(&BlankEnvelope.e_macro, A_TEMP, 'k', p); - setclass('k', p); - setclass('w', p); - } - if (hp != NULL) - { - for (av = hp->h_aliases; av != NULL && *av != NULL; av++) - { - if (tTd(0, 4)) - sm_dprintf("\ta.k.a.: %s\n", *av); - setclass('w', *av); - } -#if NETINET || NETINET6 - for (i = 0; i >= 0 && hp->h_addr_list[i] != NULL; i++) - { -# if NETINET6 - char *addr; - char buf6[INET6_ADDRSTRLEN]; - struct in6_addr ia6; -# endif /* NETINET6 */ -# if NETINET - struct in_addr ia; -# endif /* NETINET */ - char ipbuf[103]; - - ipbuf[0] = '\0'; - switch (hp->h_addrtype) - { -# if NETINET - case AF_INET: - if (hp->h_length != INADDRSZ) - break; - - memmove(&ia, hp->h_addr_list[i], INADDRSZ); - (void) sm_snprintf(ipbuf, sizeof ipbuf, - "[%.100s]", inet_ntoa(ia)); - break; -# endif /* NETINET */ - -# if NETINET6 - case AF_INET6: - if (hp->h_length != IN6ADDRSZ) - break; - - memmove(&ia6, hp->h_addr_list[i], IN6ADDRSZ); - addr = anynet_ntop(&ia6, buf6, sizeof buf6); - if (addr != NULL) - (void) sm_snprintf(ipbuf, sizeof ipbuf, - "[%.100s]", addr); - break; -# endif /* NETINET6 */ - } - if (ipbuf[0] == '\0') - break; - - if (tTd(0, 4)) - sm_dprintf("\ta.k.a.: %s\n", ipbuf); - setclass('w', ipbuf); - } -#endif /* NETINET || NETINET6 */ -#if NETINET6 - freehostent(hp); - hp = NULL; -#endif /* NETINET6 */ - } - - /* current time */ - macdefine(&BlankEnvelope.e_macro, A_TEMP, 'b', arpadate((char *) NULL)); - - /* current load average */ - sm_getla(); - - QueueLimitRecipient = (QUEUE_CHAR *) NULL; - QueueLimitSender = (QUEUE_CHAR *) NULL; - QueueLimitId = (QUEUE_CHAR *) NULL; -#if _FFR_QUARANTINE - QueueLimitQuarantine = (QUEUE_CHAR *) NULL; -#endif /* _FFR_QUARANTINE */ - - /* - ** Crack argv. - */ - - optind = 1; - while ((j = getopt(argc, argv, OPTIONS)) != -1) - { - switch (j) - { - case 'b': /* operations mode */ - /* already done */ - break; - - case 'A': /* use Alternate sendmail/submit.cf */ - cftype = optarg[0] == 'c' ? SM_GET_SUBMIT_CF - : SM_GET_SENDMAIL_CF; - break; - - case 'B': /* body type */ - CHECK_AGAINST_OPMODE(j); - BlankEnvelope.e_bodytype = newstr(optarg); - break; - - case 'C': /* select configuration file (already done) */ - if (RealUid != 0) - warn_C_flag = true; - conffile = newstr(optarg); - dp = drop_privileges(true); - setstat(dp); - safecf = false; - break; - - case 'd': /* debugging */ - /* already done */ - break; - - case 'f': /* from address */ - case 'r': /* obsolete -f flag */ - CHECK_AGAINST_OPMODE(j); - if (from != NULL) - { - usrerr("More than one \"from\" person"); - ExitStat = EX_USAGE; - break; - } - if (optarg[0] == '\0') - from = newstr("<>"); - else - from = newstr(denlstring(optarg, true, true)); - if (strcmp(RealUserName, from) != 0) - warn_f_flag = j; - break; - - case 'F': /* set full name */ - CHECK_AGAINST_OPMODE(j); - FullName = newstr(optarg); - break; - - case 'G': /* relay (gateway) submission */ - /* already set */ - CHECK_AGAINST_OPMODE(j); - break; - - case 'h': /* hop count */ - CHECK_AGAINST_OPMODE(j); - BlankEnvelope.e_hopcount = (short) strtol(optarg, &ep, - 10); - (void) sm_snprintf(buf, sizeof buf, "%d", - BlankEnvelope.e_hopcount); - macdefine(&BlankEnvelope.e_macro, A_TEMP, 'c', buf); - - if (*ep) - { - usrerr("Bad hop count (%s)", optarg); - ExitStat = EX_USAGE; - } - break; - - case 'L': /* program label */ - /* already set */ - break; - - case 'n': /* don't alias */ - CHECK_AGAINST_OPMODE(j); - NoAlias = true; - break; - - case 'N': /* delivery status notifications */ - CHECK_AGAINST_OPMODE(j); - DefaultNotify |= QHASNOTIFY; - macdefine(&BlankEnvelope.e_macro, A_TEMP, - macid("{dsn_notify}"), optarg); - if (sm_strcasecmp(optarg, "never") == 0) - break; - for (p = optarg; p != NULL; optarg = p) - { - p = strchr(p, ','); - if (p != NULL) - *p++ = '\0'; - if (sm_strcasecmp(optarg, "success") == 0) - DefaultNotify |= QPINGONSUCCESS; - else if (sm_strcasecmp(optarg, "failure") == 0) - DefaultNotify |= QPINGONFAILURE; - else if (sm_strcasecmp(optarg, "delay") == 0) - DefaultNotify |= QPINGONDELAY; - else - { - usrerr("Invalid -N argument"); - ExitStat = EX_USAGE; - } - } - break; - - case 'o': /* set option */ - setoption(*optarg, optarg + 1, false, true, - &BlankEnvelope); - break; - - case 'O': /* set option (long form) */ - setoption(' ', optarg, false, true, &BlankEnvelope); - break; - - case 'p': /* set protocol */ - CHECK_AGAINST_OPMODE(j); - p = strchr(optarg, ':'); - if (p != NULL) - { - *p++ = '\0'; - if (*p != '\0') - { - ep = sm_malloc_x(strlen(p) + 1); - cleanstrcpy(ep, p, MAXNAME); - macdefine(&BlankEnvelope.e_macro, - A_HEAP, 's', ep); - } - } - if (*optarg != '\0') - { - ep = sm_malloc_x(strlen(optarg) + 1); - cleanstrcpy(ep, optarg, MAXNAME); - macdefine(&BlankEnvelope.e_macro, A_HEAP, - 'r', ep); - } - break; - -#if _FFR_QUARANTINE - case 'Q': /* change quarantining on queued items */ - /* sanity check */ - if (OpMode != MD_DELIVER && - OpMode != MD_QUEUERUN) - { - usrerr("Can not use -Q with -b%c", OpMode); - ExitStat = EX_USAGE; - break; - } - - if (OpMode == MD_DELIVER) - set_op_mode(MD_QUEUERUN); - - FullName = NULL; - - quarantining = newstr(optarg); - break; -#endif /* _FFR_QUARANTINE */ - - case 'q': /* run queue files at intervals */ - /* sanity check */ - if (OpMode != MD_DELIVER && - OpMode != MD_DAEMON && - OpMode != MD_FGDAEMON && - OpMode != MD_PRINT && - OpMode != MD_PRINTNQE && - OpMode != MD_QUEUERUN) - { - usrerr("Can not use -q with -b%c", OpMode); - ExitStat = EX_USAGE; - break; - } - - /* don't override -bd, -bD or -bp */ - if (OpMode == MD_DELIVER) - set_op_mode(MD_QUEUERUN); - - FullName = NULL; - negate = optarg[0] == '!'; - if (negate) - { - /* negate meaning of pattern match */ - optarg++; /* skip '!' for next switch */ - } - - switch (optarg[0]) - { - case 'G': /* Limit by queue group name */ - if (negate) - { - usrerr("Can not use -q!G"); - ExitStat = EX_USAGE; - break; - } - if (queuegroup != NULL) - { - usrerr("Can not use multiple -qG options"); - ExitStat = EX_USAGE; - break; - } - queuegroup = newstr(&optarg[1]); - break; - - case 'I': /* Limit by ID */ - new = (QUEUE_CHAR *) xalloc(sizeof *new); - new->queue_match = newstr(&optarg[1]); - new->queue_negate = negate; - new->queue_next = QueueLimitId; - QueueLimitId = new; - break; - - case 'R': /* Limit by recipient */ - new = (QUEUE_CHAR *) xalloc(sizeof *new); - new->queue_match = newstr(&optarg[1]); - new->queue_negate = negate; - new->queue_next = QueueLimitRecipient; - QueueLimitRecipient = new; - break; - - case 'S': /* Limit by sender */ - new = (QUEUE_CHAR *) xalloc(sizeof *new); - new->queue_match = newstr(&optarg[1]); - new->queue_negate = negate; - new->queue_next = QueueLimitSender; - QueueLimitSender = new; - break; - - case 'f': /* foreground queue run */ - foregroundqueue = true; - break; - -#if _FFR_QUARANTINE - case 'Q': /* Limit by quarantine message */ - if (optarg[1] != '\0') - { - new = (QUEUE_CHAR *) xalloc(sizeof *new); - new->queue_match = newstr(&optarg[1]); - new->queue_negate = negate; - new->queue_next = QueueLimitQuarantine; - QueueLimitQuarantine = new; - } - QueueMode = QM_QUARANTINE; - break; - - case 'L': /* act on lost items */ - QueueMode = QM_LOST; - break; -#endif /* _FFR_QUARANTINE */ - - case 'p': /* Persistent queue */ - queuepersistent = true; - if (QueueIntvl == 0) - QueueIntvl = 1; - if (optarg[1] == '\0') - break; - ++optarg; - /* FALLTHROUGH */ - - default: - i = Errors; - QueueIntvl = convtime(optarg, 'm'); - if (QueueIntvl < 0) - { - usrerr("Invalid -q value"); - ExitStat = EX_USAGE; - } - - /* check for bad conversion */ - if (i < Errors) - ExitStat = EX_USAGE; - break; - } - break; - - case 'R': /* DSN RET: what to return */ - CHECK_AGAINST_OPMODE(j); - if (bitset(EF_RET_PARAM, BlankEnvelope.e_flags)) - { - usrerr("Duplicate -R flag"); - ExitStat = EX_USAGE; - break; - } - BlankEnvelope.e_flags |= EF_RET_PARAM; - if (sm_strcasecmp(optarg, "hdrs") == 0) - BlankEnvelope.e_flags |= EF_NO_BODY_RETN; - else if (sm_strcasecmp(optarg, "full") != 0) - { - usrerr("Invalid -R value"); - ExitStat = EX_USAGE; - } - macdefine(&BlankEnvelope.e_macro, A_TEMP, - macid("{dsn_ret}"), optarg); - break; - - case 't': /* read recipients from message */ - CHECK_AGAINST_OPMODE(j); - GrabTo = true; - break; - - case 'V': /* DSN ENVID: set "original" envelope id */ - CHECK_AGAINST_OPMODE(j); - if (!xtextok(optarg)) - { - usrerr("Invalid syntax in -V flag"); - ExitStat = EX_USAGE; - } - else - { - BlankEnvelope.e_envid = newstr(optarg); - macdefine(&BlankEnvelope.e_macro, A_TEMP, - macid("{dsn_envid}"), optarg); - } - break; - - case 'X': /* traffic log file */ - dp = drop_privileges(true); - setstat(dp); - if (stat(optarg, &traf_st) == 0 && - S_ISFIFO(traf_st.st_mode)) - TrafficLogFile = sm_io_open(SmFtStdio, - SM_TIME_DEFAULT, - optarg, - SM_IO_WRONLY, NULL); - else - TrafficLogFile = sm_io_open(SmFtStdio, - SM_TIME_DEFAULT, - optarg, - SM_IO_APPEND, NULL); - if (TrafficLogFile == NULL) - { - syserr("cannot open %s", optarg); - ExitStat = EX_CANTCREAT; - break; - } - (void) sm_io_setvbuf(TrafficLogFile, SM_TIME_DEFAULT, - NULL, SM_IO_LBF, 0); - break; - - /* compatibility flags */ - case 'c': /* connect to non-local mailers */ - case 'i': /* don't let dot stop me */ - case 'm': /* send to me too */ - case 'T': /* set timeout interval */ - case 'v': /* give blow-by-blow description */ - setoption(j, "T", false, true, &BlankEnvelope); - break; - - case 'e': /* error message disposition */ - case 'M': /* define macro */ - setoption(j, optarg, false, true, &BlankEnvelope); - break; - - case 's': /* save From lines in headers */ - setoption('f', "T", false, true, &BlankEnvelope); - break; - -#ifdef DBM - case 'I': /* initialize alias DBM file */ - set_op_mode(MD_INITALIAS); - break; -#endif /* DBM */ - -#if defined(__osf__) || defined(_AIX3) - case 'x': /* random flag that OSF/1 & AIX mailx passes */ - break; -#endif /* defined(__osf__) || defined(_AIX3) */ -#if defined(sony_news) - case 'E': - case 'J': /* ignore flags for Japanese code conversion - implemented on Sony NEWS */ - break; -#endif /* defined(sony_news) */ - - default: - finis(true, true, EX_USAGE); - /* NOTREACHED */ - break; - } - } - - /* if we've had errors so far, exit now */ - if ((ExitStat != EX_OK && OpMode != MD_TEST) || - ExitStat == EX_OSERR) - { - finis(false, true, ExitStat); - /* NOTREACHED */ - } - - if (bitset(SUBMIT_MTA, SubmitMode)) - { - /* If set daemon_flags on command line, don't reset it */ - if (macvalue(macid("{daemon_flags}"), &BlankEnvelope) == NULL) - macdefine(&BlankEnvelope.e_macro, A_PERM, - macid("{daemon_flags}"), "CC f"); - } - else if (OpMode == MD_DELIVER || OpMode == MD_SMTP) - { - SubmitMode = SUBMIT_MSA; - - /* If set daemon_flags on command line, don't reset it */ - if (macvalue(macid("{daemon_flags}"), &BlankEnvelope) == NULL) - macdefine(&BlankEnvelope.e_macro, A_PERM, - macid("{daemon_flags}"), "c u"); - } - - /* - ** Do basic initialization. - ** Read system control file. - ** Extract special fields for local use. - */ - -#if XDEBUG - checkfd012("before readcf"); -#endif /* XDEBUG */ - vendor_pre_defaults(&BlankEnvelope); - - readcf(getcfname(OpMode, SubmitMode, cftype, conffile), - safecf, &BlankEnvelope); -#if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) - ConfigFileRead = true; -#endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ - vendor_post_defaults(&BlankEnvelope); - - /* now we can complain about missing fds */ - if (MissingFds != 0 && LogLevel > 8) - { - char mbuf[MAXLINE]; - - mbuf[0] = '\0'; - if (bitset(1 << STDIN_FILENO, MissingFds)) - (void) sm_strlcat(mbuf, ", stdin", sizeof mbuf); - if (bitset(1 << STDOUT_FILENO, MissingFds)) - (void) sm_strlcat(mbuf, ", stdout", sizeof mbuf); - if (bitset(1 << STDERR_FILENO, MissingFds)) - (void) sm_strlcat(mbuf, ", stderr", sizeof mbuf); - - /* Notice: fill_errno is from high above: fill_fd() */ - sm_syslog(LOG_WARNING, NOQID, - "File descriptors missing on startup: %s; %s", - &mbuf[2], sm_errstring(fill_errno)); - } - - /* Remove the ability for a normal user to send signals */ - if (RealUid != 0 && RealUid != geteuid()) - { - uid_t new_uid = geteuid(); - -#if HASSETREUID - /* - ** Since we can differentiate between uid and euid, - ** make the uid a different user so the real user - ** can't send signals. However, it doesn't need to be - ** root (euid has root). - */ - - if (new_uid == 0) - new_uid = DefUid; - if (tTd(47, 5)) - sm_dprintf("Changing real uid to %d\n", (int) new_uid); - if (setreuid(new_uid, geteuid()) < 0) - { - syserr("main: setreuid(%d, %d) failed", - (int) new_uid, (int) geteuid()); - finis(false, true, EX_OSERR); - /* NOTREACHED */ - } - if (tTd(47, 10)) - sm_dprintf("Now running as e/ruid %d:%d\n", - (int) geteuid(), (int) getuid()); -#else /* HASSETREUID */ - /* - ** Have to change both effective and real so need to - ** change them both to effective to keep privs. - */ - - if (tTd(47, 5)) - sm_dprintf("Changing uid to %d\n", (int) new_uid); - if (setuid(new_uid) < 0) - { - syserr("main: setuid(%d) failed", (int) new_uid); - finis(false, true, EX_OSERR); - /* NOTREACHED */ - } - if (tTd(47, 10)) - sm_dprintf("Now running as e/ruid %d:%d\n", - (int) geteuid(), (int) getuid()); -#endif /* HASSETREUID */ - } - -#if NAMED_BIND - if (FallBackMX != NULL) - (void) getfallbackmxrr(FallBackMX); -#endif /* NAMED_BIND */ - - if (SuperSafe == SAFE_INTERACTIVE && CurEnv->e_sendmode != SM_DELIVER) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "WARNING: SuperSafe=interactive should only be used with\n DeliveryMode=interactive\n"); - } - - if (UseMSP && (OpMode == MD_DAEMON || OpMode == MD_FGDAEMON)) - { - usrerr("Mail submission program cannot be used as daemon"); - finis(false, true, EX_USAGE); - } - - if (OpMode == MD_DELIVER || OpMode == MD_SMTP || - OpMode == MD_QUEUERUN || OpMode == MD_ARPAFTP || - OpMode == MD_DAEMON || OpMode == MD_FGDAEMON) - makeworkgroups(); - - /* set up the basic signal handlers */ - if (sm_signal(SIGINT, SIG_IGN) != SIG_IGN) - (void) sm_signal(SIGINT, intsig); - (void) sm_signal(SIGTERM, intsig); - - /* Enforce use of local time (null string overrides this) */ - if (TimeZoneSpec == NULL) - unsetenv("TZ"); - else if (TimeZoneSpec[0] != '\0') - setuserenv("TZ", TimeZoneSpec); - else - setuserenv("TZ", NULL); - tzset(); - - /* initialize mailbox database */ - i = sm_mbdb_initialize(Mbdb); - if (i != EX_OK) - { - usrerr("Can't initialize mailbox database \"%s\": %s", - Mbdb, sm_strexit(i)); - ExitStat = i; - } - - /* avoid denial-of-service attacks */ - resetlimits(); - - if (OpMode == MD_TEST) - { - /* can't be done after readcf if RunAs* is used */ - dp = drop_privileges(true); - if (dp != EX_OK) - { - finis(false, true, dp); - /* NOTREACHED */ - } - } - else if (OpMode != MD_DAEMON && OpMode != MD_FGDAEMON) - { - /* drop privileges -- daemon mode done after socket/bind */ - dp = drop_privileges(false); - setstat(dp); - if (dp == EX_OK && UseMSP && (geteuid() == 0 || getuid() == 0)) - { - usrerr("Mail submission program must have RunAsUser set to non root user"); - finis(false, true, EX_CONFIG); - /* NOTREACHED */ - } - } - -#if NAMED_BIND - _res.retry = TimeOuts.res_retry[RES_TO_DEFAULT]; - _res.retrans = TimeOuts.res_retrans[RES_TO_DEFAULT]; -#endif /* NAMED_BIND */ - - /* - ** Find our real host name for future logging. - */ - - authinfo = getauthinfo(STDIN_FILENO, &forged); - macdefine(&BlankEnvelope.e_macro, A_TEMP, '_', authinfo); - - /* suppress error printing if errors mailed back or whatever */ - if (BlankEnvelope.e_errormode != EM_PRINT) - HoldErrs = true; - - /* set up the $=m class now, after .cf has a chance to redefine $m */ - expand("\201m", jbuf, sizeof jbuf, &BlankEnvelope); - if (jbuf[0] != '\0') - setclass('m', jbuf); - - /* probe interfaces and locate any additional names */ - if (DontProbeInterfaces != DPI_PROBENONE) - load_if_names(); - - if (tTd(0, 10)) - { - char pidpath[MAXPATHLEN]; - - /* Now we know which .cf file we use */ - sm_dprintf(" Conf file:\t%s (selected)\n", - getcfname(OpMode, SubmitMode, cftype, conffile)); - expand(PidFile, pidpath, sizeof pidpath, &BlankEnvelope); - sm_dprintf(" Pid file:\t%s (selected)\n", pidpath); - } - - if (tTd(0, 1)) - { - sm_dprintf("\n============ SYSTEM IDENTITY (after readcf) ============"); - sm_dprintf("\n (short domain name) $w = "); - xputs(macvalue('w', &BlankEnvelope)); - sm_dprintf("\n (canonical domain name) $j = "); - xputs(macvalue('j', &BlankEnvelope)); - sm_dprintf("\n (subdomain name) $m = "); - xputs(macvalue('m', &BlankEnvelope)); - sm_dprintf("\n (node name) $k = "); - xputs(macvalue('k', &BlankEnvelope)); - sm_dprintf("\n========================================================\n\n"); - } - - /* - ** Do more command line checking -- these are things that - ** have to modify the results of reading the config file. - */ - - /* process authorization warnings from command line */ - if (warn_C_flag) - auth_warning(&BlankEnvelope, "Processed by %s with -C %s", - RealUserName, conffile); - if (Warn_Q_option && !wordinclass(RealUserName, 't')) - auth_warning(&BlankEnvelope, "Processed from queue %s", - QueueDir); - if (sysloglabel != NULL && !wordinclass(RealUserName, 't') && - RealUid != 0 && RealUid != TrustedUid && LogLevel > 1) - sm_syslog(LOG_WARNING, NOQID, "user %d changed syslog label", - (int) RealUid); - - /* check body type for legality */ - i = check_bodytype(BlankEnvelope.e_bodytype); - if (i == BODYTYPE_ILLEGAL) - { - usrerr("Illegal body type %s", BlankEnvelope.e_bodytype); - BlankEnvelope.e_bodytype = NULL; - } - else if (i != BODYTYPE_NONE) - SevenBitInput = (i == BODYTYPE_7BIT); - - /* tweak default DSN notifications */ - if (DefaultNotify == 0) - DefaultNotify = QPINGONFAILURE|QPINGONDELAY; - - /* be sure we don't pick up bogus HOSTALIASES environment variable */ - if (OpMode == MD_QUEUERUN && RealUid != 0) - (void) unsetenv("HOSTALIASES"); - - /* check for sane configuration level */ - if (ConfigLevel > MAXCONFIGLEVEL) - { - syserr("Warning: .cf version level (%d) exceeds sendmail version %s functionality (%d)", - ConfigLevel, Version, MAXCONFIGLEVEL); - } - - /* need MCI cache to have persistence */ - if (HostStatDir != NULL && MaxMciCache == 0) - { - HostStatDir = NULL; - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Warning: HostStatusDirectory disabled with ConnectionCacheSize = 0\n"); - } - - /* need HostStatusDir in order to have SingleThreadDelivery */ - if (SingleThreadDelivery && HostStatDir == NULL) - { - SingleThreadDelivery = false; - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Warning: HostStatusDirectory required for SingleThreadDelivery\n"); - } - - /* check for permissions */ - if (RealUid != 0 && - RealUid != TrustedUid) - { - char *action = NULL; - - switch (OpMode) - { - case MD_QUEUERUN: -#if _FFR_QUARANTINE - if (quarantining != NULL) - action = "quarantine jobs"; - else -#endif /* _FFR_QUARANTINE */ - /* Normal users can do a single queue run */ - if (QueueIntvl == 0) - break; - - /* but not persistent queue runners */ - if (action == NULL) - action = "start a queue runner daemon"; - /* FALLTHROUGH */ - - case MD_PURGESTAT: - if (action == NULL) - action = "purge host status"; - /* FALLTHROUGH */ - - case MD_DAEMON: - case MD_FGDAEMON: - if (action == NULL) - action = "run daemon"; - - if (tTd(65, 1)) - sm_dprintf("Deny user %d attempt to %s\n", - (int) RealUid, action); - - if (LogLevel > 1) - sm_syslog(LOG_ALERT, NOQID, - "user %d attempted to %s", - (int) RealUid, action); - HoldErrs = false; - usrerr("Permission denied (real uid not trusted)"); - finis(false, true, EX_USAGE); - /* NOTREACHED */ - break; - - case MD_VERIFY: - if (bitset(PRIV_RESTRICTEXPAND, PrivacyFlags)) - { - /* - ** If -bv and RestrictExpand, - ** drop privs to prevent normal - ** users from reading private - ** aliases/forwards/:include:s - */ - - if (tTd(65, 1)) - sm_dprintf("Drop privs for user %d attempt to expand (RestrictExpand)\n", - (int) RealUid); - - dp = drop_privileges(true); - - /* Fake address safety */ - if (tTd(65, 1)) - sm_dprintf("Faking DontBlameSendmail=NonRootSafeAddr\n"); - setbitn(DBS_NONROOTSAFEADDR, DontBlameSendmail); - - if (dp != EX_OK) - { - if (tTd(65, 1)) - sm_dprintf("Failed to drop privs for user %d attempt to expand, exiting\n", - (int) RealUid); - CurEnv->e_id = NULL; - finis(true, true, dp); - /* NOTREACHED */ - } - } - break; - - case MD_TEST: - case MD_PRINT: - case MD_PRINTNQE: - case MD_FREEZE: - case MD_HOSTSTAT: - /* Nothing special to check */ - break; - - case MD_INITALIAS: - if (!wordinclass(RealUserName, 't')) - { - if (tTd(65, 1)) - sm_dprintf("Deny user %d attempt to rebuild the alias map\n", - (int) RealUid); - if (LogLevel > 1) - sm_syslog(LOG_ALERT, NOQID, - "user %d attempted to rebuild the alias map", - (int) RealUid); - HoldErrs = false; - usrerr("Permission denied (real uid not trusted)"); - finis(false, true, EX_USAGE); - /* NOTREACHED */ - } - if (UseMSP) - { - HoldErrs = false; - usrerr("User %d cannot rebuild aliases in mail submission program", - (int) RealUid); - finis(false, true, EX_USAGE); - /* NOTREACHED */ - } - /* FALLTHROUGH */ - - default: - if (bitset(PRIV_RESTRICTEXPAND, PrivacyFlags) && - Verbose != 0) - { - /* - ** If -v and RestrictExpand, reset - ** Verbose to prevent normal users - ** from seeing the expansion of - ** aliases/forwards/:include:s - */ - - if (tTd(65, 1)) - sm_dprintf("Dropping verbosity for user %d (RestrictExpand)\n", - (int) RealUid); - Verbose = 0; - } - break; - } - } - - if (MeToo) - BlankEnvelope.e_flags |= EF_METOO; - - switch (OpMode) - { - case MD_TEST: - /* don't have persistent host status in test mode */ - HostStatDir = NULL; - if (Verbose == 0) - Verbose = 2; - BlankEnvelope.e_errormode = EM_PRINT; - HoldErrs = false; - break; - - case MD_VERIFY: - BlankEnvelope.e_errormode = EM_PRINT; - HoldErrs = false; - /* arrange to exit cleanly on hangup signal */ - if (sm_signal(SIGHUP, SIG_IGN) == (sigfunc_t) SIG_DFL) - (void) sm_signal(SIGHUP, intsig); - if (geteuid() != 0) - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Notice: -bv may give misleading output for non-privileged user\n"); - break; - - case MD_FGDAEMON: - run_in_foreground = true; - set_op_mode(MD_DAEMON); - /* FALLTHROUGH */ - - case MD_DAEMON: - vendor_daemon_setup(&BlankEnvelope); - - /* remove things that don't make sense in daemon mode */ - FullName = NULL; - GrabTo = false; - - /* arrange to restart on hangup signal */ - if (SaveArgv[0] == NULL || SaveArgv[0][0] != '/') - sm_syslog(LOG_WARNING, NOQID, - "daemon invoked without full pathname; kill -1 won't work"); - break; - - case MD_INITALIAS: - Verbose = 2; - BlankEnvelope.e_errormode = EM_PRINT; - HoldErrs = false; - /* FALLTHROUGH */ - - default: - /* arrange to exit cleanly on hangup signal */ - if (sm_signal(SIGHUP, SIG_IGN) == (sigfunc_t) SIG_DFL) - (void) sm_signal(SIGHUP, intsig); - break; - } - - /* special considerations for FullName */ - if (FullName != NULL) - { - char *full = NULL; - - /* full names can't have newlines */ - if (strchr(FullName, '\n') != NULL) - { - full = newstr(denlstring(FullName, true, true)); - FullName = full; - } - - /* check for characters that may have to be quoted */ - if (!rfc822_string(FullName)) - { - /* - ** Quote a full name with special characters - ** as a comment so crackaddr() doesn't destroy - ** the name portion of the address. - */ - - FullName = addquotes(FullName, NULL); - if (full != NULL) - sm_free(full); /* XXX */ - } - } - - /* do heuristic mode adjustment */ - if (Verbose) - { - /* turn off noconnect option */ - setoption('c', "F", true, false, &BlankEnvelope); - - /* turn on interactive delivery */ - setoption('d', "", true, false, &BlankEnvelope); - } - -#ifdef VENDOR_CODE - /* check for vendor mismatch */ - if (VendorCode != VENDOR_CODE) - { - message("Warning: .cf file vendor code mismatch: sendmail expects vendor %s, .cf file vendor is %s", - getvendor(VENDOR_CODE), getvendor(VendorCode)); - } -#endif /* VENDOR_CODE */ - - /* check for out of date configuration level */ - if (ConfigLevel < MAXCONFIGLEVEL) - { - message("Warning: .cf file is out of date: sendmail %s supports version %d, .cf file is version %d", - Version, MAXCONFIGLEVEL, ConfigLevel); - } - - if (ConfigLevel < 3) - UseErrorsTo = true; - - /* set options that were previous macros */ - if (SmtpGreeting == NULL) - { - if (ConfigLevel < 7 && - (p = macvalue('e', &BlankEnvelope)) != NULL) - SmtpGreeting = newstr(p); - else - SmtpGreeting = "\201j Sendmail \201v ready at \201b"; - } - if (UnixFromLine == NULL) - { - if (ConfigLevel < 7 && - (p = macvalue('l', &BlankEnvelope)) != NULL) - UnixFromLine = newstr(p); - else - UnixFromLine = "From \201g \201d"; - } - SmtpError[0] = '\0'; - - /* our name for SMTP codes */ - expand("\201j", jbuf, sizeof jbuf, &BlankEnvelope); - if (jbuf[0] == '\0') - PSTRSET(MyHostName, "localhost"); - else - PSTRSET(MyHostName, jbuf); - if (strchr(MyHostName, '.') == NULL) - message("WARNING: local host name (%s) is not qualified; fix $j in config file", - MyHostName); - - /* make certain that this name is part of the $=w class */ - setclass('w', MyHostName); - - /* fill in the structure of the *default* queue */ - st = stab("mqueue", ST_QUEUE, ST_FIND); - if (st == NULL) - syserr("No default queue (mqueue) defined"); - else - set_def_queueval(st->s_quegrp, true); - - /* the indices of built-in mailers */ - st = stab("local", ST_MAILER, ST_FIND); - if (st != NULL) - LocalMailer = st->s_mailer; - else if (OpMode != MD_TEST || !warn_C_flag) - syserr("No local mailer defined"); - - st = stab("prog", ST_MAILER, ST_FIND); - if (st == NULL) - syserr("No prog mailer defined"); - else - { - ProgMailer = st->s_mailer; - clrbitn(M_MUSER, ProgMailer->m_flags); - } - - st = stab("*file*", ST_MAILER, ST_FIND); - if (st == NULL) - syserr("No *file* mailer defined"); - else - { - FileMailer = st->s_mailer; - clrbitn(M_MUSER, FileMailer->m_flags); - } - - st = stab("*include*", ST_MAILER, ST_FIND); - if (st == NULL) - syserr("No *include* mailer defined"); - else - InclMailer = st->s_mailer; - - if (ConfigLevel < 6) - { - /* heuristic tweaking of local mailer for back compat */ - if (LocalMailer != NULL) - { - setbitn(M_ALIASABLE, LocalMailer->m_flags); - setbitn(M_HASPWENT, LocalMailer->m_flags); - setbitn(M_TRYRULESET5, LocalMailer->m_flags); - setbitn(M_CHECKINCLUDE, LocalMailer->m_flags); - setbitn(M_CHECKPROG, LocalMailer->m_flags); - setbitn(M_CHECKFILE, LocalMailer->m_flags); - setbitn(M_CHECKUDB, LocalMailer->m_flags); - } - if (ProgMailer != NULL) - setbitn(M_RUNASRCPT, ProgMailer->m_flags); - if (FileMailer != NULL) - setbitn(M_RUNASRCPT, FileMailer->m_flags); - } - if (ConfigLevel < 7) - { - if (LocalMailer != NULL) - setbitn(M_VRFY250, LocalMailer->m_flags); - if (ProgMailer != NULL) - setbitn(M_VRFY250, ProgMailer->m_flags); - if (FileMailer != NULL) - setbitn(M_VRFY250, FileMailer->m_flags); - } - - /* MIME Content-Types that cannot be transfer encoded */ - setclass('n', "multipart/signed"); - - /* MIME message/xxx subtypes that can be treated as messages */ - setclass('s', "rfc822"); - - /* MIME Content-Transfer-Encodings that can be encoded */ - setclass('e', "7bit"); - setclass('e', "8bit"); - setclass('e', "binary"); - -#ifdef USE_B_CLASS - /* MIME Content-Types that should be treated as binary */ - setclass('b', "image"); - setclass('b', "audio"); - setclass('b', "video"); - setclass('b', "application/octet-stream"); -#endif /* USE_B_CLASS */ - - /* MIME headers which have fields to check for overflow */ - setclass(macid("{checkMIMEFieldHeaders}"), "content-disposition"); - setclass(macid("{checkMIMEFieldHeaders}"), "content-type"); - - /* MIME headers to check for length overflow */ - setclass(macid("{checkMIMETextHeaders}"), "content-description"); - - /* MIME headers to check for overflow and rebalance */ - setclass(macid("{checkMIMEHeaders}"), "content-disposition"); - setclass(macid("{checkMIMEHeaders}"), "content-id"); - setclass(macid("{checkMIMEHeaders}"), "content-transfer-encoding"); - setclass(macid("{checkMIMEHeaders}"), "content-type"); - setclass(macid("{checkMIMEHeaders}"), "mime-version"); - - /* Macros to save in the queue file -- don't remove any */ - setclass(macid("{persistentMacros}"), "r"); - setclass(macid("{persistentMacros}"), "s"); - setclass(macid("{persistentMacros}"), "_"); - setclass(macid("{persistentMacros}"), "{if_addr}"); - setclass(macid("{persistentMacros}"), "{daemon_flags}"); - - /* operate in queue directory */ - if (QueueDir == NULL || *QueueDir == '\0') - { - if (OpMode != MD_TEST) - { - syserr("QueueDirectory (Q) option must be set"); - ExitStat = EX_CONFIG; - } - } - else - { - if (OpMode != MD_TEST) - setup_queues(OpMode == MD_DAEMON); - } - - /* check host status directory for validity */ - if (HostStatDir != NULL && !path_is_dir(HostStatDir, false)) - { - /* cannot use this value */ - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Warning: Cannot use HostStatusDirectory = %s: %s\n", - HostStatDir, sm_errstring(errno)); - HostStatDir = NULL; - } - - if (OpMode == MD_QUEUERUN && - RealUid != 0 && bitset(PRIV_RESTRICTQRUN, PrivacyFlags)) - { - struct stat stbuf; - - /* check to see if we own the queue directory */ - if (stat(".", &stbuf) < 0) - syserr("main: cannot stat %s", QueueDir); - if (stbuf.st_uid != RealUid) - { - /* nope, really a botch */ - HoldErrs = false; - usrerr("You do not have permission to process the queue"); - finis(false, true, EX_NOPERM); - /* NOTREACHED */ - } - } - -#if MILTER - /* sanity checks on milter filters */ - if (OpMode == MD_DAEMON || OpMode == MD_SMTP) - { - milter_config(InputFilterList, InputFilters, MAXFILTERS); -# if _FFR_MILTER_PERDAEMON - setup_daemon_milters(); -# endif /* _FFR_MILTER_PERDAEMON */ - } -#endif /* MILTER */ - - /* Convert queuegroup string to qgrp number */ - if (queuegroup != NULL) - { - qgrp = name2qid(queuegroup); - if (qgrp == NOQGRP) - { - HoldErrs = false; - usrerr("Queue group %s unknown", queuegroup); - finis(false, true, ExitStat); - /* NOTREACHED */ - } - } - - /* if we've had errors so far, exit now */ - if (ExitStat != EX_OK && OpMode != MD_TEST) - { - finis(false, true, ExitStat); - /* NOTREACHED */ - } - -#if SASL - /* sendmail specific SASL initialization */ - sm_sasl_init(); -#endif /* SASL */ - -#if XDEBUG - checkfd012("before main() initmaps"); -#endif /* XDEBUG */ - - /* - ** Do operation-mode-dependent initialization. - */ - - switch (OpMode) - { - case MD_PRINT: - /* print the queue */ - HoldErrs = false; - dropenvelope(&BlankEnvelope, true, false); - (void) sm_signal(SIGPIPE, sigpipe); - if (qgrp != NOQGRP) - { - int j; - - /* Selecting a particular queue group to run */ - for (j = 0; j < Queue[qgrp]->qg_numqueues; j++) - { - if (StopRequest) - stop_sendmail(); - (void) print_single_queue(qgrp, j); - } - finis(false, true, EX_OK); - /* NOTREACHED */ - } - printqueue(); - finis(false, true, EX_OK); - /* NOTREACHED */ - break; - - case MD_PRINTNQE: - /* print number of entries in queue */ - dropenvelope(&BlankEnvelope, true, false); - (void) sm_signal(SIGPIPE, sigpipe); - printnqe(smioout, NULL); - finis(false, true, EX_OK); - /* NOTREACHED */ - break; - -#if _FFR_QUARANTINE - case MD_QUEUERUN: - /* only handle quarantining here */ - if (quarantining == NULL) - break; - - if (QueueMode != QM_QUARANTINE && - QueueMode != QM_NORMAL) - { - HoldErrs = false; - usrerr("Can not use -Q with -q%c", QueueMode); - ExitStat = EX_USAGE; - finis(false, true, ExitStat); - /* NOTREACHED */ - } - quarantine_queue(quarantining, qgrp); - finis(false, true, EX_OK); - break; -#endif /* _FFR_QUARANTINE */ - - case MD_HOSTSTAT: - (void) sm_signal(SIGPIPE, sigpipe); - (void) mci_traverse_persistent(mci_print_persistent, NULL); - finis(false, true, EX_OK); - /* NOTREACHED */ - break; - - case MD_PURGESTAT: - (void) mci_traverse_persistent(mci_purge_persistent, NULL); - finis(false, true, EX_OK); - /* NOTREACHED */ - break; - - case MD_INITALIAS: - /* initialize maps */ - initmaps(); - finis(false, true, ExitStat); - /* NOTREACHED */ - break; - - case MD_SMTP: - case MD_DAEMON: - /* reset DSN parameters */ - DefaultNotify = QPINGONFAILURE|QPINGONDELAY; - macdefine(&BlankEnvelope.e_macro, A_PERM, - macid("{dsn_notify}"), NULL); - BlankEnvelope.e_envid = NULL; - macdefine(&BlankEnvelope.e_macro, A_PERM, - macid("{dsn_envid}"), NULL); - BlankEnvelope.e_flags &= ~(EF_RET_PARAM|EF_NO_BODY_RETN); - macdefine(&BlankEnvelope.e_macro, A_PERM, - macid("{dsn_ret}"), NULL); - - /* don't open maps for daemon -- done below in child */ - break; - } - - if (tTd(0, 15)) - { - /* print configuration table (or at least part of it) */ - if (tTd(0, 90)) - printrules(); - for (i = 0; i < MAXMAILERS; i++) - { - if (Mailer[i] != NULL) - printmailer(Mailer[i]); - } - } - - /* - ** Switch to the main envelope. - */ - - CurEnv = newenvelope(&MainEnvelope, &BlankEnvelope, - sm_rpool_new_x(NULL)); - MainEnvelope.e_flags = BlankEnvelope.e_flags; - - /* - ** If test mode, read addresses from stdin and process. - */ - - if (OpMode == MD_TEST) - { - if (isatty(sm_io_getinfo(smioin, SM_IO_WHAT_FD, NULL))) - Verbose = 2; - - if (Verbose) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)\n"); - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Enter <ruleset> <address>\n"); - } - macdefine(&(MainEnvelope.e_macro), A_PERM, - macid("{addr_type}"), "e r"); - for (;;) - { - SM_TRY - { - (void) sm_signal(SIGINT, intindebug); - (void) sm_releasesignal(SIGINT); - if (Verbose == 2) - (void) sm_io_fprintf(smioout, - SM_TIME_DEFAULT, - "> "); - (void) sm_io_flush(smioout, SM_TIME_DEFAULT); - if (sm_io_fgets(smioin, SM_TIME_DEFAULT, buf, - sizeof buf) == NULL) - testmodeline("/quit", &MainEnvelope); - p = strchr(buf, '\n'); - if (p != NULL) - *p = '\0'; - if (Verbose < 2) - (void) sm_io_fprintf(smioout, - SM_TIME_DEFAULT, - "> %s\n", buf); - testmodeline(buf, &MainEnvelope); - } - SM_EXCEPT(exc, "[!F]*") - { - /* - ** 8.10 just prints \n on interrupt. - ** I'm printing the exception here in case - ** sendmail is extended to raise additional - ** exceptions in this context. - */ - - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "\n"); - sm_exc_print(exc, smioout); - } - SM_END_TRY - } - } - -#if STARTTLS - tls_ok = true; - if (OpMode == MD_QUEUERUN || OpMode == MD_DELIVER) - { - /* check whether STARTTLS is turned off for the client */ - if (chkclientmodifiers(D_NOTLS)) - tls_ok = false; - } - else if (OpMode == MD_DAEMON || OpMode == MD_FGDAEMON || - OpMode == MD_SMTP) - { - /* check whether STARTTLS is turned off for the server */ - if (chkdaemonmodifiers(D_NOTLS)) - tls_ok = false; - } - else /* other modes don't need STARTTLS */ - tls_ok = false; - - if (tls_ok) - { - /* basic TLS initialization */ - tls_ok = init_tls_library(); - } - - if (!tls_ok && (OpMode == MD_QUEUERUN || OpMode == MD_DELIVER)) - { - /* disable TLS for client */ - setclttls(false); - } -#endif /* STARTTLS */ - - /* - ** If collecting stuff from the queue, go start doing that. - */ - - if (OpMode == MD_QUEUERUN && QueueIntvl == 0) - { - pid_t pid = -1; - -#if STARTTLS - /* init TLS for client, ignore result for now */ - (void) initclttls(tls_ok); -#endif /* STARTTLS */ - - /* - ** The parent process of the caller of runqueue() needs - ** to stay around for a possible SIGTERM. The SIGTERM will - ** tell this process that all of the queue runners children - ** need to be sent SIGTERM as well. At the same time, we - ** want to return control to the command line. So we do an - ** extra fork(). - */ - - if (Verbose || foregroundqueue || (pid = fork()) <= 0) - { - /* - ** If the fork() failed we should still try to do - ** the queue run. If it succeeded then the child - ** is going to start the run and wait for all - ** of the children to finish. - */ - - if (pid == 0) - { - /* Reset global flags */ - RestartRequest = NULL; - ShutdownRequest = NULL; - PendingSignal = 0; - - /* disconnect from terminal */ - disconnect(2, CurEnv); - } - - CurrentPid = getpid(); - if (qgrp != NOQGRP) - { - int rwgflags = RWG_NONE; - - /* - ** To run a specific queue group mark it to - ** be run, select the work group it's in and - ** increment the work counter. - */ - - for (i = 0; i < NumQueue && Queue[i] != NULL; - i++) - Queue[i]->qg_nextrun = (time_t) -1; - Queue[qgrp]->qg_nextrun = 0; - if (Verbose) - rwgflags |= RWG_VERBOSE; - if (queuepersistent) - rwgflags |= RWG_PERSISTENT; - rwgflags |= RWG_FORCE; - (void) run_work_group(Queue[qgrp]->qg_wgrp, - rwgflags); - } - else - (void) runqueue(false, Verbose, - queuepersistent, true); - - /* set the title to make it easier to find */ - sm_setproctitle(true, CurEnv, "Queue control"); - (void) sm_signal(SIGCHLD, SIG_DFL); - while (CurChildren > 0) - { - int status; - pid_t ret; - - while ((ret = sm_wait(&status)) <= 0) - continue; - - /* Only drop when a child gives status */ - if (WIFSTOPPED(status)) - continue; - - proc_list_drop(ret, status, NULL); - } - } - finis(true, true, ExitStat); - /* NOTREACHED */ - } - -# if SASL - if (OpMode == MD_SMTP || OpMode == MD_DAEMON) - { - /* check whether AUTH is turned off for the server */ - if (!chkdaemonmodifiers(D_NOAUTH) && - (i = sasl_server_init(srvcallbacks, "Sendmail")) != SASL_OK) - syserr("!sasl_server_init failed! [%s]", - sasl_errstring(i, NULL, NULL)); - } -# endif /* SASL */ - - if (OpMode == MD_SMTP) - { - proc_list_add(CurrentPid, "Sendmail SMTP Agent", - PROC_DAEMON, 0, -1); - - /* clean up background delivery children */ - (void) sm_signal(SIGCHLD, reapchild); - } - - /* - ** If a daemon, wait for a request. - ** getrequests will always return in a child. - ** If we should also be processing the queue, start - ** doing it in background. - ** We check for any errors that might have happened - ** during startup. - */ - - if (OpMode == MD_DAEMON || QueueIntvl > 0) - { - char dtype[200]; - - if (!run_in_foreground && !tTd(99, 100)) - { - /* put us in background */ - i = fork(); - if (i < 0) - syserr("daemon: cannot fork"); - if (i != 0) - { - finis(false, true, EX_OK); - /* NOTREACHED */ - } - - /* - ** Initialize exception stack and default exception - ** handler for child process. - */ - - /* Reset global flags */ - RestartRequest = NULL; - RestartWorkGroup = false; - ShutdownRequest = NULL; - PendingSignal = 0; - CurrentPid = getpid(); - - sm_exc_newthread(fatal_error); - - /* disconnect from our controlling tty */ - disconnect(2, &MainEnvelope); - } - - dtype[0] = '\0'; - if (OpMode == MD_DAEMON) - { - (void) sm_strlcat(dtype, "+SMTP", sizeof dtype); - DaemonPid = CurrentPid; - } - if (QueueIntvl > 0) - { - (void) sm_strlcat2(dtype, - queuepersistent - ? "+persistent-queueing@" - : "+queueing@", - pintvl(QueueIntvl, true), - sizeof dtype); - } - if (tTd(0, 1)) - (void) sm_strlcat(dtype, "+debugging", sizeof dtype); - - sm_syslog(LOG_INFO, NOQID, - "starting daemon (%s): %s", Version, dtype + 1); -#if XLA - xla_create_file(); -#endif /* XLA */ - - /* save daemon type in a macro for possible PidFile use */ - macdefine(&BlankEnvelope.e_macro, A_TEMP, - macid("{daemon_info}"), dtype + 1); - - /* save queue interval in a macro for possible PidFile use */ - macdefine(&MainEnvelope.e_macro, A_TEMP, - macid("{queue_interval}"), pintvl(QueueIntvl, true)); - - /* workaround: can't seem to release the signal in the parent */ - (void) sm_signal(SIGHUP, sighup); - (void) sm_releasesignal(SIGHUP); - (void) sm_signal(SIGTERM, sigterm); - - if (QueueIntvl > 0) - { - (void) runqueue(true, false, queuepersistent, true); - - /* - ** If queuepersistent but not in daemon mode then - ** we're going to do the queue runner monitoring here. - ** If in daemon mode then the monitoring will happen - ** elsewhere. - */ - - if (OpMode != MD_DAEMON && queuepersistent) - { - /* set the title to make it easier to find */ - sm_setproctitle(true, CurEnv, "Queue control"); - (void) sm_signal(SIGCHLD, SIG_DFL); - while (CurChildren > 0) - { - int status; - pid_t ret; - int group; - - if (ShutdownRequest != NULL) - shutdown_daemon(); - else if (RestartRequest != NULL) - restart_daemon(); - else if (RestartWorkGroup) - restart_marked_work_groups(); - - while ((ret = sm_wait(&status)) <= 0) - continue; - - if (WIFSTOPPED(status)) - continue; - - /* Probe only on a child status */ - proc_list_drop(ret, status, &group); - - if (WIFSIGNALED(status)) - { - if (WCOREDUMP(status)) - { - sm_syslog(LOG_ERR, NOQID, - "persistent queue runner=%d core dumped, signal=%d", - group, WTERMSIG(status)); - - /* don't restart this one */ - mark_work_group_restart(group, -1); - continue; - } - - sm_syslog(LOG_ERR, NOQID, - "persistent queue runner=%d died, signal=%d", - group, WTERMSIG(status)); - } - - /* - ** When debugging active, don't - ** restart the persistent queues. - ** But do log this as info. - */ - - if (sm_debug_active(&DebugNoPRestart, - 1)) - { - sm_syslog(LOG_DEBUG, NOQID, - "persistent queue runner=%d, exited", - group); - mark_work_group_restart(group, -1); - } - } - finis(true, true, ExitStat); - /* NOTREACHED */ - } - - if (OpMode != MD_DAEMON) - { - char qtype[200]; - - /* - ** Write the pid to file - ** XXX Overwrites sendmail.pid - */ - - log_sendmail_pid(&MainEnvelope); - - /* set the title to make it easier to find */ - qtype[0] = '\0'; - (void) sm_strlcpyn(qtype, sizeof qtype, 4, - "Queue runner@", - pintvl(QueueIntvl, true), - " for ", - QueueDir); - sm_setproctitle(true, CurEnv, qtype); - for (;;) - { - (void) pause(); - if (ShutdownRequest != NULL) - shutdown_daemon(); - else if (RestartRequest != NULL) - restart_daemon(); - else if (RestartWorkGroup) - restart_marked_work_groups(); - - if (doqueuerun()) - (void) runqueue(true, false, - false, false); - } - } - } - dropenvelope(&MainEnvelope, true, false); - -#if STARTTLS - /* init TLS for server, ignore result for now */ - (void) initsrvtls(tls_ok); -#endif /* STARTTLS */ - - nextreq: - p_flags = getrequests(&MainEnvelope); - - /* drop privileges */ - (void) drop_privileges(false); - - /* - ** Get authentication data - ** Set _ macro in BlankEnvelope before calling newenvelope(). - */ - - authinfo = getauthinfo(sm_io_getinfo(InChannel, SM_IO_WHAT_FD, - NULL), &forged); - macdefine(&BlankEnvelope.e_macro, A_TEMP, '_', authinfo); - - /* at this point we are in a child: reset state */ - sm_rpool_free(MainEnvelope.e_rpool); - (void) newenvelope(&MainEnvelope, &MainEnvelope, - sm_rpool_new_x(NULL)); - } - - if (LogLevel > 9) - { - /* log connection information */ - sm_syslog(LOG_INFO, NULL, "connect from %s", authinfo); - } - - /* - ** If running SMTP protocol, start collecting and executing - ** commands. This will never return. - */ - - if (OpMode == MD_SMTP || OpMode == MD_DAEMON) - { - char pbuf[20]; - - /* - ** Save some macros for check_* rulesets. - */ - - if (forged) - { - char ipbuf[103]; - - (void) sm_snprintf(ipbuf, sizeof ipbuf, "[%.100s]", - anynet_ntoa(&RealHostAddr)); - macdefine(&BlankEnvelope.e_macro, A_TEMP, - macid("{client_name}"), ipbuf); - } - else - macdefine(&BlankEnvelope.e_macro, A_PERM, - macid("{client_name}"), RealHostName); - macdefine(&BlankEnvelope.e_macro, A_TEMP, - macid("{client_addr}"), anynet_ntoa(&RealHostAddr)); - sm_getla(); - - switch (RealHostAddr.sa.sa_family) - { -#if NETINET - case AF_INET: - (void) sm_snprintf(pbuf, sizeof pbuf, "%d", - RealHostAddr.sin.sin_port); - break; -#endif /* NETINET */ -#if NETINET6 - case AF_INET6: - (void) sm_snprintf(pbuf, sizeof pbuf, "%d", - RealHostAddr.sin6.sin6_port); - break; -#endif /* NETINET6 */ - default: - (void) sm_snprintf(pbuf, sizeof pbuf, "0"); - break; - } - macdefine(&BlankEnvelope.e_macro, A_TEMP, - macid("{client_port}"), pbuf); - - if (OpMode == MD_DAEMON) - { - /* validate the connection */ - HoldErrs = true; - nullserver = validate_connection(&RealHostAddr, - RealHostName, - &MainEnvelope); - HoldErrs = false; - } - else if (p_flags == NULL) - { - p_flags = (BITMAP256 *) xalloc(sizeof *p_flags); - clrbitmap(p_flags); - } -#if STARTTLS - if (OpMode == MD_SMTP) - (void) initsrvtls(tls_ok); -#endif /* STARTTLS */ - - /* turn off profiling */ - SM_PROF(1); - smtp(nullserver, *p_flags, &MainEnvelope); - - if (tTd(93, 100)) - { - /* turn off profiling */ - SM_PROF(0); - if (OpMode == MD_DAEMON) - goto nextreq; - } - } - - sm_rpool_free(MainEnvelope.e_rpool); - clearenvelope(&MainEnvelope, false, sm_rpool_new_x(NULL)); - if (OpMode == MD_VERIFY) - { - set_delivery_mode(SM_VERIFY, &MainEnvelope); - PostMasterCopy = NULL; - } - else - { - /* interactive -- all errors are global */ - MainEnvelope.e_flags |= EF_GLOBALERRS|EF_LOGSENDER; - } - - /* - ** Do basic system initialization and set the sender - */ - - initsys(&MainEnvelope); - macdefine(&MainEnvelope.e_macro, A_PERM, macid("{ntries}"), "0"); - macdefine(&MainEnvelope.e_macro, A_PERM, macid("{nrcpts}"), "0"); - setsender(from, &MainEnvelope, NULL, '\0', false); - if (warn_f_flag != '\0' && !wordinclass(RealUserName, 't') && - (!bitnset(M_LOCALMAILER, MainEnvelope.e_from.q_mailer->m_flags) || - strcmp(MainEnvelope.e_from.q_user, RealUserName) != 0)) - { - auth_warning(&MainEnvelope, "%s set sender to %s using -%c", - RealUserName, from, warn_f_flag); -#if SASL - auth = false; -#endif /* SASL */ - } - if (auth) - { - char *fv; - - /* set the initial sender for AUTH= to $f@$j */ - fv = macvalue('f', &MainEnvelope); - if (fv == NULL || *fv == '\0') - MainEnvelope.e_auth_param = NULL; - else - { - if (strchr(fv, '@') == NULL) - { - i = strlen(fv) + strlen(macvalue('j', - &MainEnvelope)) + 2; - p = sm_malloc_x(i); - (void) sm_strlcpyn(p, i, 3, fv, "@", - macvalue('j', - &MainEnvelope)); - } - else - p = sm_strdup_x(fv); - MainEnvelope.e_auth_param = sm_rpool_strdup_x(MainEnvelope.e_rpool, - xtextify(p, "=")); - sm_free(p); /* XXX */ - } - } - if (macvalue('s', &MainEnvelope) == NULL) - macdefine(&MainEnvelope.e_macro, A_PERM, 's', RealHostName); - - av = argv + optind; - if (*av == NULL && !GrabTo) - { - MainEnvelope.e_to = NULL; - MainEnvelope.e_flags |= EF_GLOBALERRS; - HoldErrs = false; - SuperSafe = SAFE_NO; - usrerr("Recipient names must be specified"); - - /* collect body for UUCP return */ - if (OpMode != MD_VERIFY) - collect(InChannel, false, NULL, &MainEnvelope); - finis(true, true, EX_USAGE); - /* NOTREACHED */ - } - - /* - ** Scan argv and deliver the message to everyone. - */ - - save_val = LogUsrErrs; - LogUsrErrs = true; - sendtoargv(av, &MainEnvelope); - LogUsrErrs = save_val; - - /* if we have had errors sofar, arrange a meaningful exit stat */ - if (Errors > 0 && ExitStat == EX_OK) - ExitStat = EX_USAGE; - -#if _FFR_FIX_DASHT - /* - ** If using -t, force not sending to argv recipients, even - ** if they are mentioned in the headers. - */ - - if (GrabTo) - { - ADDRESS *q; - - for (q = MainEnvelope.e_sendqueue; q != NULL; q = q->q_next) - q->q_state = QS_REMOVED; - } -#endif /* _FFR_FIX_DASHT */ - - /* - ** Read the input mail. - */ - - MainEnvelope.e_to = NULL; - if (OpMode != MD_VERIFY || GrabTo) - { - int savederrors; - unsigned long savedflags; - - /* - ** workaround for compiler warning on Irix: - ** do not initialize variable in the definition, but - ** later on: - ** warning(1548): transfer of control bypasses - ** initialization of: - ** variable "savederrors" (declared at line 2570) - ** variable "savedflags" (declared at line 2571) - ** goto giveup; - */ - - savederrors = Errors; - savedflags = MainEnvelope.e_flags & EF_FATALERRS; - MainEnvelope.e_flags |= EF_GLOBALERRS; - MainEnvelope.e_flags &= ~EF_FATALERRS; - Errors = 0; - buffer_errors(); - collect(InChannel, false, NULL, &MainEnvelope); - - /* header checks failed */ - if (Errors > 0) - { - giveup: - if (!GrabTo) - { - /* Log who the mail would have gone to */ - logundelrcpts(&MainEnvelope, - MainEnvelope.e_message, - 8, false); - } - flush_errors(true); - finis(true, true, ExitStat); - /* NOTREACHED */ - return -1; - } - - /* bail out if message too large */ - if (bitset(EF_CLRQUEUE, MainEnvelope.e_flags)) - { - finis(true, true, ExitStat != EX_OK ? ExitStat - : EX_DATAERR); - /* NOTREACHED */ - return -1; - } - - /* set message size */ - (void) sm_snprintf(buf, sizeof buf, "%ld", - MainEnvelope.e_msgsize); - macdefine(&MainEnvelope.e_macro, A_TEMP, - macid("{msg_size}"), buf); - - Errors = savederrors; - MainEnvelope.e_flags |= savedflags; - } - errno = 0; - - if (tTd(1, 1)) - sm_dprintf("From person = \"%s\"\n", - MainEnvelope.e_from.q_paddr); - -#if _FFR_QUARANTINE - /* Check if quarantining stats should be updated */ - if (MainEnvelope.e_quarmsg != NULL) - markstats(&MainEnvelope, NULL, STATS_QUARANTINE); -#endif /* _FFR_QUARANTINE */ - - /* - ** Actually send everything. - ** If verifying, just ack. - */ - - if (Errors == 0) - { - if (!split_by_recipient(&MainEnvelope) && - bitset(EF_FATALERRS, MainEnvelope.e_flags)) - goto giveup; - } - - /* make sure we deliver at least the first envelope */ - i = FastSplit > 0 ? 0 : -1; - for (e = &MainEnvelope; e != NULL; e = e->e_sibling, i++) - { - ENVELOPE *next; - - e->e_from.q_state = QS_SENDER; - if (tTd(1, 5)) - { - sm_dprintf("main[%d]: QS_SENDER ", i); - printaddr(&e->e_from, false); - } - e->e_to = NULL; - sm_getla(); - GrabTo = false; -#if NAMED_BIND - _res.retry = TimeOuts.res_retry[RES_TO_FIRST]; - _res.retrans = TimeOuts.res_retrans[RES_TO_FIRST]; -#endif /* NAMED_BIND */ - next = e->e_sibling; - e->e_sibling = NULL; - - /* after FastSplit envelopes: queue up */ - sendall(e, i >= FastSplit ? SM_QUEUE : SM_DEFAULT); - e->e_sibling = next; - } - - /* - ** All done. - ** Don't send return error message if in VERIFY mode. - */ - - finis(true, true, ExitStat); - /* NOTREACHED */ - return ExitStat; -} -/* -** STOP_SENDMAIL -- Stop the running program -** -** Parameters: -** none. -** -** Returns: -** none. -** -** Side Effects: -** exits. -*/ - -void -stop_sendmail() -{ - /* reset uid for process accounting */ - endpwent(); - (void) setuid(RealUid); - exit(EX_OK); -} -/* -** FINIS -- Clean up and exit. -** -** Parameters: -** drop -- whether or not to drop CurEnv envelope -** cleanup -- call exit() or _exit()? -** exitstat -- exit status to use for exit() call -** -** Returns: -** never -** -** Side Effects: -** exits sendmail -*/ - -void -finis(drop, cleanup, exitstat) - bool drop; - bool cleanup; - volatile int exitstat; -{ - - /* Still want to process new timeouts added below */ - sm_clear_events(); - (void) sm_releasesignal(SIGALRM); - - if (tTd(2, 1)) - { - sm_dprintf("\n====finis: stat %d e_id=%s e_flags=", - exitstat, - CurEnv->e_id == NULL ? "NOQUEUE" : CurEnv->e_id); - printenvflags(CurEnv); - } - if (tTd(2, 9)) - printopenfds(false); - - SM_TRY - /* - ** Clean up. This might raise E:mta.quickabort - */ - - /* clean up temp files */ - CurEnv->e_to = NULL; - if (drop) - { - if (CurEnv->e_id != NULL) - { - dropenvelope(CurEnv, true, false); - sm_rpool_free(CurEnv->e_rpool); - CurEnv->e_rpool = NULL; - } - else - poststats(StatFile); - } - - /* flush any cached connections */ - mci_flush(true, NULL); - - /* close maps belonging to this pid */ - closemaps(false); - -#if USERDB - /* close UserDatabase */ - _udbx_close(); -#endif /* USERDB */ - -#if SASL - stop_sasl_client(); -#endif /* SASL */ - -#if XLA - /* clean up extended load average stuff */ - xla_all_end(); -#endif /* XLA */ - - SM_FINALLY - /* - ** And exit. - */ - - if (LogLevel > 78) - sm_syslog(LOG_DEBUG, CurEnv->e_id, "finis, pid=%d", - (int) CurrentPid); - if (exitstat == EX_TEMPFAIL || - CurEnv->e_errormode == EM_BERKNET) - exitstat = EX_OK; - - /* XXX clean up queues and related data structures */ - cleanup_queues(); -#if SM_CONF_SHM - cleanup_shm(DaemonPid == getpid()); -#endif /* SM_CONF_SHM */ - - /* reset uid for process accounting */ - endpwent(); - sm_mbdb_terminate(); - (void) setuid(RealUid); -#if SM_HEAP_CHECK - /* dump the heap, if we are checking for memory leaks */ - if (sm_debug_active(&SmHeapCheck, 2)) - sm_heap_report(smioout, - sm_debug_level(&SmHeapCheck) - 1); -#endif /* SM_HEAP_CHECK */ - if (sm_debug_active(&SmXtrapReport, 1)) - sm_dprintf("xtrap count = %d\n", SmXtrapCount); - if (cleanup) - exit(exitstat); - else - _exit(exitstat); - SM_END_TRY -} -/* -** INTINDEBUG -- signal handler for SIGINT in -bt mode -** -** Parameters: -** sig -- incoming signal. -** -** Returns: -** none. -** -** Side Effects: -** longjmps back to test mode loop. -** -** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD -** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE -** DOING. -*/ - -/* Type of an exception generated on SIGINT during address test mode. */ -static const SM_EXC_TYPE_T EtypeInterrupt = -{ - SmExcTypeMagic, - "S:mta.interrupt", - "", - sm_etype_printf, - "interrupt", -}; - -/* ARGSUSED */ -static SIGFUNC_DECL -intindebug(sig) - int sig; -{ - int save_errno = errno; - - FIX_SYSV_SIGNAL(sig, intindebug); - errno = save_errno; - CHECK_CRITICAL(sig); - errno = save_errno; - sm_exc_raisenew_x(&EtypeInterrupt); - errno = save_errno; - return SIGFUNC_RETURN; -} -/* -** SIGTERM -- SIGTERM handler for the daemon -** -** Parameters: -** sig -- signal number. -** -** Returns: -** none. -** -** Side Effects: -** Sets ShutdownRequest which will hopefully trigger -** the daemon to exit. -** -** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD -** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE -** DOING. -*/ - -/* ARGSUSED */ -static SIGFUNC_DECL -sigterm(sig) - int sig; -{ - int save_errno = errno; - - FIX_SYSV_SIGNAL(sig, sigterm); - ShutdownRequest = "signal"; - errno = save_errno; - return SIGFUNC_RETURN; -} -/* -** SIGHUP -- handle a SIGHUP signal -** -** Parameters: -** sig -- incoming signal. -** -** Returns: -** none. -** -** Side Effects: -** Sets RestartRequest which should cause the daemon -** to restart. -** -** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD -** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE -** DOING. -*/ - -/* ARGSUSED */ -static SIGFUNC_DECL -sighup(sig) - int sig; -{ - int save_errno = errno; - - FIX_SYSV_SIGNAL(sig, sighup); - RestartRequest = "signal"; - errno = save_errno; - return SIGFUNC_RETURN; -} -/* -** SIGPIPE -- signal handler for SIGPIPE -** -** Parameters: -** sig -- incoming signal. -** -** Returns: -** none. -** -** Side Effects: -** Sets StopRequest which should cause the mailq/hoststatus -** display to stop. -** -** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD -** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE -** DOING. -*/ - -/* ARGSUSED */ -static SIGFUNC_DECL -sigpipe(sig) - int sig; -{ - int save_errno = errno; - - FIX_SYSV_SIGNAL(sig, sigpipe); - StopRequest = true; - errno = save_errno; - return SIGFUNC_RETURN; -} -/* -** INTSIG -- clean up on interrupt -** -** This just arranges to exit. It pessimizes in that it -** may resend a message. -** -** Parameters: -** none. -** -** Returns: -** none. -** -** Side Effects: -** Unlocks the current job. -** -** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD -** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE -** DOING. -** -** XXX: More work is needed for this signal handler. -*/ - -/* ARGSUSED */ -SIGFUNC_DECL -intsig(sig) - int sig; -{ - bool drop = false; - int save_errno = errno; - - FIX_SYSV_SIGNAL(sig, intsig); - errno = save_errno; - CHECK_CRITICAL(sig); - sm_allsignals(true); - - if (sig != 0 && LogLevel > 79) - sm_syslog(LOG_DEBUG, CurEnv->e_id, "interrupt"); - FileName = NULL; - - /* Clean-up on aborted stdin message submission */ - if (CurEnv->e_id != NULL && - (OpMode == MD_SMTP || - OpMode == MD_DELIVER || - OpMode == MD_ARPAFTP)) - { - register ADDRESS *q; - - /* don't return an error indication */ - CurEnv->e_to = NULL; - CurEnv->e_flags &= ~EF_FATALERRS; - CurEnv->e_flags |= EF_CLRQUEUE; - - /* - ** Spin through the addresses and - ** mark them dead to prevent bounces - */ - - for (q = CurEnv->e_sendqueue; q != NULL; q = q->q_next) - q->q_state = QS_DONTSEND; - - drop = true; - } - else if (OpMode != MD_TEST) - { - unlockqueue(CurEnv); - } - - finis(drop, false, EX_OK); - /* NOTREACHED */ -} -/* -** DISCONNECT -- remove our connection with any foreground process -** -** Parameters: -** droplev -- how "deeply" we should drop the line. -** 0 -- ignore signals, mail back errors, make sure -** output goes to stdout. -** 1 -- also, make stdout go to /dev/null. -** 2 -- also, disconnect from controlling terminal -** (only for daemon mode). -** e -- the current envelope. -** -** Returns: -** none -** -** Side Effects: -** Trys to insure that we are immune to vagaries of -** the controlling tty. -*/ - -void -disconnect(droplev, e) - int droplev; - register ENVELOPE *e; -{ - int fd; - - if (tTd(52, 1)) - sm_dprintf("disconnect: In %d Out %d, e=%p\n", - sm_io_getinfo(InChannel, SM_IO_WHAT_FD, NULL), - sm_io_getinfo(OutChannel, SM_IO_WHAT_FD, NULL), e); - if (tTd(52, 100)) - { - sm_dprintf("don't\n"); - return; - } - if (LogLevel > 93) - sm_syslog(LOG_DEBUG, e->e_id, - "disconnect level %d", - droplev); - - /* be sure we don't get nasty signals */ - (void) sm_signal(SIGINT, SIG_IGN); - (void) sm_signal(SIGQUIT, SIG_IGN); - - /* we can't communicate with our caller, so.... */ - HoldErrs = true; - CurEnv->e_errormode = EM_MAIL; - Verbose = 0; - DisConnected = true; - - /* all input from /dev/null */ - if (InChannel != smioin) - { - (void) sm_io_close(InChannel, SM_TIME_DEFAULT); - InChannel = smioin; - } - if (sm_io_reopen(SmFtStdio, SM_TIME_DEFAULT, SM_PATH_DEVNULL, - SM_IO_RDONLY, NULL, smioin) == NULL) - sm_syslog(LOG_ERR, e->e_id, - "disconnect: sm_io_reopen(\"%s\") failed: %s", - SM_PATH_DEVNULL, sm_errstring(errno)); - - /* - ** output to the transcript - ** We also compare the fd numbers here since OutChannel - ** might be a layer on top of smioout due to encryption - ** (see sfsasl.c). - */ - - if (OutChannel != smioout && - sm_io_getinfo(OutChannel, SM_IO_WHAT_FD, NULL) != - sm_io_getinfo(smioout, SM_IO_WHAT_FD, NULL)) - { - (void) sm_io_close(OutChannel, SM_TIME_DEFAULT); - OutChannel = smioout; - -#if 0 - /* - ** Has smioout been closed? Reopen it. - ** This shouldn't happen anymore, the code is here - ** just as a reminder. - */ - - if (smioout->sm_magic == NULL && - sm_io_reopen(SmFtStdio, SM_TIME_DEFAULT, SM_PATH_DEVNULL, - SM_IO_WRONLY, NULL, smioout) == NULL) - sm_syslog(LOG_ERR, e->e_id, - "disconnect: sm_io_reopen(\"%s\") failed: %s", - SM_PATH_DEVNULL, sm_errstring(errno)); -#endif /* 0 */ - } - if (droplev > 0) - { - fd = open(SM_PATH_DEVNULL, O_WRONLY, 0666); - if (fd == -1) - sm_syslog(LOG_ERR, e->e_id, - "disconnect: open(\"%s\") failed: %s", - SM_PATH_DEVNULL, sm_errstring(errno)); - (void) sm_io_flush(smioout, SM_TIME_DEFAULT); - (void) dup2(fd, STDOUT_FILENO); - (void) dup2(fd, STDERR_FILENO); - (void) close(fd); - } - - /* drop our controlling TTY completely if possible */ - if (droplev > 1) - { - (void) setsid(); - errno = 0; - } - -#if XDEBUG - checkfd012("disconnect"); -#endif /* XDEBUG */ - - if (LogLevel > 71) - sm_syslog(LOG_DEBUG, e->e_id, "in background, pid=%d", - (int) CurrentPid); - - errno = 0; -} - -static void -obsolete(argv) - char *argv[]; -{ - register char *ap; - register char *op; - - while ((ap = *++argv) != NULL) - { - /* Return if "--" or not an option of any form. */ - if (ap[0] != '-' || ap[1] == '-') - return; - -#if _FFR_QUARANTINE - /* Don't allow users to use "-Q." or "-Q ." */ - if ((ap[1] == 'Q' && ap[2] == '.') || - (ap[1] == 'Q' && argv[1] != NULL && - argv[1][0] == '.' && argv[1][1] == '\0')) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Can not use -Q.\n"); - exit(EX_USAGE); - } -#endif /* _FFR_QUARANTINE */ - - /* skip over options that do have a value */ - op = strchr(OPTIONS, ap[1]); - if (op != NULL && *++op == ':' && ap[2] == '\0' && - ap[1] != 'd' && -#if defined(sony_news) - ap[1] != 'E' && ap[1] != 'J' && -#endif /* defined(sony_news) */ - argv[1] != NULL && argv[1][0] != '-') - { - argv++; - continue; - } - - /* If -C doesn't have an argument, use sendmail.cf. */ -#define __DEFPATH "sendmail.cf" - if (ap[1] == 'C' && ap[2] == '\0') - { - *argv = xalloc(sizeof(__DEFPATH) + 2); - (void) sm_strlcpyn(argv[0], sizeof(__DEFPATH) + 2, 2, - "-C", __DEFPATH); - } - - /* If -q doesn't have an argument, run it once. */ - if (ap[1] == 'q' && ap[2] == '\0') - *argv = "-q0"; - -#if _FFR_QUARANTINE - /* If -Q doesn't have an argument, disable quarantining */ - if (ap[1] == 'Q' && ap[2] == '\0') - *argv = "-Q."; -#endif /* _FFR_QUARANTINE */ - - /* if -d doesn't have an argument, use 0-99.1 */ - if (ap[1] == 'd' && ap[2] == '\0') - *argv = "-d0-99.1"; - -#if defined(sony_news) - /* if -E doesn't have an argument, use -EC */ - if (ap[1] == 'E' && ap[2] == '\0') - *argv = "-EC"; - - /* if -J doesn't have an argument, use -JJ */ - if (ap[1] == 'J' && ap[2] == '\0') - *argv = "-JJ"; -#endif /* defined(sony_news) */ - } -} -/* -** AUTH_WARNING -- specify authorization warning -** -** Parameters: -** e -- the current envelope. -** msg -- the text of the message. -** args -- arguments to the message. -** -** Returns: -** none. -*/ - -void -#ifdef __STDC__ -auth_warning(register ENVELOPE *e, const char *msg, ...) -#else /* __STDC__ */ -auth_warning(e, msg, va_alist) - register ENVELOPE *e; - const char *msg; - va_dcl -#endif /* __STDC__ */ -{ - char buf[MAXLINE]; - SM_VA_LOCAL_DECL - - if (bitset(PRIV_AUTHWARNINGS, PrivacyFlags)) - { - register char *p; - static char hostbuf[48]; - - if (hostbuf[0] == '\0') - { - struct hostent *hp; - - hp = myhostname(hostbuf, sizeof hostbuf); -#if NETINET6 - if (hp != NULL) - { - freehostent(hp); - hp = NULL; - } -#endif /* NETINET6 */ - } - - (void) sm_strlcpyn(buf, sizeof buf, 2, hostbuf, ": "); - p = &buf[strlen(buf)]; - SM_VA_START(ap, msg); - (void) sm_vsnprintf(p, SPACELEFT(buf, p), msg, ap); - SM_VA_END(ap); - addheader("X-Authentication-Warning", buf, 0, e); - if (LogLevel > 3) - sm_syslog(LOG_INFO, e->e_id, - "Authentication-Warning: %.400s", - buf); - } -} -/* -** GETEXTENV -- get from external environment -** -** Parameters: -** envar -- the name of the variable to retrieve -** -** Returns: -** The value, if any. -*/ - -static char * -getextenv(envar) - const char *envar; -{ - char **envp; - int l; - - l = strlen(envar); - for (envp = ExternalEnviron; envp != NULL && *envp != NULL; envp++) - { - if (strncmp(*envp, envar, l) == 0 && (*envp)[l] == '=') - return &(*envp)[l + 1]; - } - return NULL; -} -/* -** SETUSERENV -- set an environment in the propagated environment -** -** Parameters: -** envar -- the name of the environment variable. -** value -- the value to which it should be set. If -** null, this is extracted from the incoming -** environment. If that is not set, the call -** to setuserenv is ignored. -** -** Returns: -** none. -*/ - -void -setuserenv(envar, value) - const char *envar; - const char *value; -{ - int i, l; - char **evp = UserEnviron; - char *p; - - if (value == NULL) - { - value = getextenv(envar); - if (value == NULL) - return; - } - - /* XXX enforce reasonable size? */ - i = strlen(envar) + 1; - l = strlen(value) + i + 1; - p = (char *) xalloc(l); - (void) sm_strlcpyn(p, l, 3, envar, "=", value); - - while (*evp != NULL && strncmp(*evp, p, i) != 0) - evp++; - if (*evp != NULL) - { - *evp++ = p; - } - else if (evp < &UserEnviron[MAXUSERENVIRON]) - { - *evp++ = p; - *evp = NULL; - } - - /* make sure it is in our environment as well */ - if (putenv(p) < 0) - syserr("setuserenv: putenv(%s) failed", p); -} -/* -** DUMPSTATE -- dump state -** -** For debugging. -*/ - -void -dumpstate(when) - char *when; -{ - register char *j = macvalue('j', CurEnv); - int rs; - extern int NextMacroId; - - sm_syslog(LOG_DEBUG, CurEnv->e_id, - "--- dumping state on %s: $j = %s ---", - when, - j == NULL ? "<NULL>" : j); - if (j != NULL) - { - if (!wordinclass(j, 'w')) - sm_syslog(LOG_DEBUG, CurEnv->e_id, - "*** $j not in $=w ***"); - } - sm_syslog(LOG_DEBUG, CurEnv->e_id, "CurChildren = %d", CurChildren); - sm_syslog(LOG_DEBUG, CurEnv->e_id, "NextMacroId = %d (Max %d)", - NextMacroId, MAXMACROID); - sm_syslog(LOG_DEBUG, CurEnv->e_id, "--- open file descriptors: ---"); - printopenfds(true); - sm_syslog(LOG_DEBUG, CurEnv->e_id, "--- connection cache: ---"); - mci_dump_all(true); - rs = strtorwset("debug_dumpstate", NULL, ST_FIND); - if (rs > 0) - { - int status; - register char **pvp; - char *pv[MAXATOM + 1]; - - pv[0] = NULL; - status = REWRITE(pv, rs, CurEnv); - sm_syslog(LOG_DEBUG, CurEnv->e_id, - "--- ruleset debug_dumpstate returns stat %d, pv: ---", - status); - for (pvp = pv; *pvp != NULL; pvp++) - sm_syslog(LOG_DEBUG, CurEnv->e_id, "%s", *pvp); - } - sm_syslog(LOG_DEBUG, CurEnv->e_id, "--- end of state dump ---"); -} - -#ifdef SIGUSR1 -/* -** SIGUSR1 -- Signal a request to dump state. -** -** Parameters: -** sig -- calling signal. -** -** Returns: -** none. -** -** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD -** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE -** DOING. -** -** XXX: More work is needed for this signal handler. -*/ - -/* ARGSUSED */ -static SIGFUNC_DECL -sigusr1(sig) - int sig; -{ - int save_errno = errno; -# if SM_HEAP_CHECK - extern void dumpstab __P((void)); -# endif /* SM_HEAP_CHECK */ - - FIX_SYSV_SIGNAL(sig, sigusr1); - errno = save_errno; - CHECK_CRITICAL(sig); - dumpstate("user signal"); -# if SM_HEAP_CHECK - dumpstab(); -# endif /* SM_HEAP_CHECK */ - errno = save_errno; - return SIGFUNC_RETURN; -} -#endif /* SIGUSR1 */ - -/* -** DROP_PRIVILEGES -- reduce privileges to those of the RunAsUser option -** -** Parameters: -** to_real_uid -- if set, drop to the real uid instead -** of the RunAsUser. -** -** Returns: -** EX_OSERR if the setuid failed. -** EX_OK otherwise. -*/ - -int -drop_privileges(to_real_uid) - bool to_real_uid; -{ - int rval = EX_OK; - GIDSET_T emptygidset[1]; - - if (tTd(47, 1)) - sm_dprintf("drop_privileges(%d): Real[UG]id=%d:%d, get[ug]id=%d:%d, gete[ug]id=%d:%d, RunAs[UG]id=%d:%d\n", - (int) to_real_uid, - (int) RealUid, (int) RealGid, - (int) getuid(), (int) getgid(), - (int) geteuid(), (int) getegid(), - (int) RunAsUid, (int) RunAsGid); - - if (to_real_uid) - { - RunAsUserName = RealUserName; - RunAsUid = RealUid; - RunAsGid = RealGid; - EffGid = RunAsGid; - } - - /* make sure no one can grab open descriptors for secret files */ - endpwent(); - sm_mbdb_terminate(); - - /* reset group permissions; these can be set later */ - emptygidset[0] = (to_real_uid || RunAsGid != 0) ? RunAsGid : getegid(); - - /* - ** Notice: on some OS (Linux...) the setgroups() call causes - ** a logfile entry if sendmail is not run by root. - ** However, it is unclear (no POSIX standard) whether - ** setgroups() can only succeed if executed by root. - ** So for now we keep it as it is; if you want to change it, use - ** if (geteuid() == 0 && setgroups(1, emptygidset) == -1) - */ - - if (setgroups(1, emptygidset) == -1 && geteuid() == 0) - { - syserr("drop_privileges: setgroups(1, %d) failed", - (int) emptygidset[0]); - rval = EX_OSERR; - } - - /* reset primary group id */ - if (to_real_uid) - { - /* - ** Drop gid to real gid. - ** On some OS we must reset the effective[/real[/saved]] gid, - ** and then use setgid() to finally drop all group privileges. - ** Later on we check whether we can get back the - ** effective gid. - */ - -#if HASSETEGID - if (setegid(RunAsGid) < 0) - { - syserr("drop_privileges: setegid(%d) failed", - (int) RunAsGid); - rval = EX_OSERR; - } -#else /* HASSETEGID */ -# if HASSETREGID - if (setregid(RunAsGid, RunAsGid) < 0) - { - syserr("drop_privileges: setregid(%d, %d) failed", - (int) RunAsGid, (int) RunAsGid); - rval = EX_OSERR; - } -# else /* HASSETREGID */ -# if HASSETRESGID - if (setresgid(RunAsGid, RunAsGid, RunAsGid) < 0) - { - syserr("drop_privileges: setresgid(%d, %d, %d) failed", - (int) RunAsGid, (int) RunAsGid, (int) RunAsGid); - rval = EX_OSERR; - } -# endif /* HASSETRESGID */ -# endif /* HASSETREGID */ -#endif /* HASSETEGID */ - } - if (rval == EX_OK && (to_real_uid || RunAsGid != 0)) - { - if (setgid(RunAsGid) < 0 && (!UseMSP || getegid() != RunAsGid)) - { - syserr("drop_privileges: setgid(%d) failed", - (int) RunAsGid); - rval = EX_OSERR; - } - errno = 0; - if (rval == EX_OK && getegid() != RunAsGid) - { - syserr("drop_privileges: Unable to set effective gid=%d to RunAsGid=%d", - (int) getegid(), (int) RunAsGid); - rval = EX_OSERR; - } - } - - /* fiddle with uid */ - if (to_real_uid || RunAsUid != 0) - { - uid_t euid; - - /* - ** Try to setuid(RunAsUid). - ** euid must be RunAsUid, - ** ruid must be RunAsUid unless (e|r)uid wasn't 0 - ** and we didn't have to drop privileges to the real uid. - */ - - if (setuid(RunAsUid) < 0 || - geteuid() != RunAsUid || - (getuid() != RunAsUid && - (to_real_uid || geteuid() == 0 || getuid() == 0))) - { -#if HASSETREUID - /* - ** if ruid != RunAsUid, euid == RunAsUid, then - ** try resetting just the real uid, then using - ** setuid() to drop the saved-uid as well. - */ - - if (geteuid() == RunAsUid) - { - if (setreuid(RunAsUid, -1) < 0) - { - syserr("drop_privileges: setreuid(%d, -1) failed", - (int) RunAsUid); - rval = EX_OSERR; - } - if (setuid(RunAsUid) < 0) - { - syserr("drop_privileges: second setuid(%d) attempt failed", - (int) RunAsUid); - rval = EX_OSERR; - } - } - else -#endif /* HASSETREUID */ - { - syserr("drop_privileges: setuid(%d) failed", - (int) RunAsUid); - rval = EX_OSERR; - } - } - euid = geteuid(); - if (RunAsUid != 0 && setuid(0) == 0) - { - /* - ** Believe it or not, the Linux capability model - ** allows a non-root process to override setuid() - ** on a process running as root and prevent that - ** process from dropping privileges. - */ - - syserr("drop_privileges: setuid(0) succeeded (when it should not)"); - rval = EX_OSERR; - } - else if (RunAsUid != euid && setuid(euid) == 0) - { - /* - ** Some operating systems will keep the saved-uid - ** if a non-root effective-uid calls setuid(real-uid) - ** making it possible to set it back again later. - */ - - syserr("drop_privileges: Unable to drop non-root set-user-ID privileges"); - rval = EX_OSERR; - } - } - - if ((to_real_uid || RunAsGid != 0) && - rval == EX_OK && RunAsGid != EffGid && - getuid() != 0 && geteuid() != 0) - { - errno = 0; - if (setgid(EffGid) == 0) - { - syserr("drop_privileges: setgid(%d) succeeded (when it should not)", - (int) EffGid); - rval = EX_OSERR; - } - } - - if (tTd(47, 5)) - { - sm_dprintf("drop_privileges: e/ruid = %d/%d e/rgid = %d/%d\n", - (int) geteuid(), (int) getuid(), - (int) getegid(), (int) getgid()); - sm_dprintf("drop_privileges: RunAsUser = %d:%d\n", - (int) RunAsUid, (int) RunAsGid); - if (tTd(47, 10)) - sm_dprintf("drop_privileges: rval = %d\n", rval); - } - return rval; -} -/* -** FILL_FD -- make sure a file descriptor has been properly allocated -** -** Used to make sure that stdin/out/err are allocated on startup -** -** Parameters: -** fd -- the file descriptor to be filled. -** where -- a string used for logging. If NULL, this is -** being called on startup, and logging should -** not be done. -** -** Returns: -** none -** -** Side Effects: -** possibly changes MissingFds -*/ - -void -fill_fd(fd, where) - int fd; - char *where; -{ - int i; - struct stat stbuf; - - if (fstat(fd, &stbuf) >= 0 || errno != EBADF) - return; - - if (where != NULL) - syserr("fill_fd: %s: fd %d not open", where, fd); - else - MissingFds |= 1 << fd; - i = open(SM_PATH_DEVNULL, fd == 0 ? O_RDONLY : O_WRONLY, 0666); - if (i < 0) - { - syserr("!fill_fd: %s: cannot open %s", - where == NULL ? "startup" : where, SM_PATH_DEVNULL); - } - if (fd != i) - { - (void) dup2(i, fd); - (void) close(i); - } -} -/* -** SM_PRINTOPTIONS -- print options -** -** Parameters: -** options -- array of options. -** -** Returns: -** none. -*/ - -static void -sm_printoptions(options) - char **options; -{ - int ll; - char **av; - - av = options; - ll = 7; - while (*av != NULL) - { - if (ll + strlen(*av) > 63) - { - sm_dprintf("\n"); - ll = 0; - } - if (ll == 0) - sm_dprintf("\t\t"); - else - sm_dprintf(" "); - sm_dprintf("%s", *av); - ll += strlen(*av++) + 1; - } - sm_dprintf("\n"); -} -/* -** TESTMODELINE -- process a test mode input line -** -** Parameters: -** line -- the input line. -** e -- the current environment. -** Syntax: -** # a comment -** .X process X as a configuration line -** =X dump a configuration item (such as mailers) -** $X dump a macro or class -** /X try an activity -** X normal process through rule set X -*/ - -static void -testmodeline(line, e) - char *line; - ENVELOPE *e; -{ - register char *p; - char *q; - auto char *delimptr; - int mid; - int i, rs; - STAB *map; - char **s; - struct rewrite *rw; - ADDRESS a; - static int tryflags = RF_COPYNONE; - char exbuf[MAXLINE]; - extern unsigned char TokTypeNoC[]; - - /* skip leading spaces */ - while (*line == ' ') - line++; - - switch (line[0]) - { - case '#': - case '\0': - return; - - case '?': - help("-bt", e); - return; - - case '.': /* config-style settings */ - switch (line[1]) - { - case 'D': - mid = macid_parse(&line[2], &delimptr); - if (mid == 0) - return; - translate_dollars(delimptr); - macdefine(&e->e_macro, A_TEMP, mid, delimptr); - break; - - case 'C': - if (line[2] == '\0') /* not to call syserr() */ - return; - - mid = macid_parse(&line[2], &delimptr); - if (mid == 0) - return; - translate_dollars(delimptr); - expand(delimptr, exbuf, sizeof exbuf, e); - p = exbuf; - while (*p != '\0') - { - register char *wd; - char delim; - - while (*p != '\0' && isascii(*p) && isspace(*p)) - p++; - wd = p; - while (*p != '\0' && !(isascii(*p) && isspace(*p))) - p++; - delim = *p; - *p = '\0'; - if (wd[0] != '\0') - setclass(mid, wd); - *p = delim; - } - break; - - case '\0': - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: .[DC]macro value(s)\n"); - break; - - default: - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Unknown \".\" command %s\n", line); - break; - } - return; - - case '=': /* config-style settings */ - switch (line[1]) - { - case 'S': /* dump rule set */ - rs = strtorwset(&line[2], NULL, ST_FIND); - if (rs < 0) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Undefined ruleset %s\n", &line[2]); - return; - } - rw = RewriteRules[rs]; - if (rw == NULL) - return; - do - { - (void) sm_io_putc(smioout, SM_TIME_DEFAULT, - 'R'); - s = rw->r_lhs; - while (*s != NULL) - { - xputs(*s++); - (void) sm_io_putc(smioout, - SM_TIME_DEFAULT, ' '); - } - (void) sm_io_putc(smioout, SM_TIME_DEFAULT, - '\t'); - (void) sm_io_putc(smioout, SM_TIME_DEFAULT, - '\t'); - s = rw->r_rhs; - while (*s != NULL) - { - xputs(*s++); - (void) sm_io_putc(smioout, - SM_TIME_DEFAULT, ' '); - } - (void) sm_io_putc(smioout, SM_TIME_DEFAULT, - '\n'); - } while ((rw = rw->r_next) != NULL); - break; - - case 'M': - for (i = 0; i < MAXMAILERS; i++) - { - if (Mailer[i] != NULL) - printmailer(Mailer[i]); - } - break; - - case '\0': - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: =Sruleset or =M\n"); - break; - - default: - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Unknown \"=\" command %s\n", line); - break; - } - return; - - case '-': /* set command-line-like opts */ - switch (line[1]) - { - case 'd': - tTflag(&line[2]); - break; - - case '\0': - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: -d{debug arguments}\n"); - break; - - default: - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Unknown \"-\" command %s\n", line); - break; - } - return; - - case '$': - if (line[1] == '=') - { - mid = macid(&line[2]); - if (mid != 0) - stabapply(dump_class, mid); - return; - } - mid = macid(&line[1]); - if (mid == 0) - return; - p = macvalue(mid, e); - if (p == NULL) - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Undefined\n"); - else - { - xputs(p); - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "\n"); - } - return; - - case '/': /* miscellaneous commands */ - p = &line[strlen(line)]; - while (--p >= line && isascii(*p) && isspace(*p)) - *p = '\0'; - p = strpbrk(line, " \t"); - if (p != NULL) - { - while (isascii(*p) && isspace(*p)) - *p++ = '\0'; - } - else - p = ""; - if (line[1] == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: /[canon|map|mx|parse|try|tryflags]\n"); - return; - } - if (sm_strcasecmp(&line[1], "quit") == 0) - { - CurEnv->e_id = NULL; - finis(true, true, ExitStat); - /* NOTREACHED */ - } - if (sm_strcasecmp(&line[1], "mx") == 0) - { -#if NAMED_BIND - /* look up MX records */ - int nmx; - auto int rcode; - char *mxhosts[MAXMXHOSTS + 1]; - - if (*p == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: /mx address\n"); - return; - } - nmx = getmxrr(p, mxhosts, NULL, false, &rcode, true, - NULL); - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "getmxrr(%s) returns %d value(s):\n", - p, nmx); - for (i = 0; i < nmx; i++) - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "\t%s\n", mxhosts[i]); -#else /* NAMED_BIND */ - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "No MX code compiled in\n"); -#endif /* NAMED_BIND */ - } - else if (sm_strcasecmp(&line[1], "canon") == 0) - { - char host[MAXHOSTNAMELEN]; - - if (*p == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: /canon address\n"); - return; - } - else if (sm_strlcpy(host, p, sizeof host) >= sizeof host) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Name too long\n"); - return; - } - (void) getcanonname(host, sizeof host, !HasWildcardMX, - NULL); - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "getcanonname(%s) returns %s\n", - p, host); - } - else if (sm_strcasecmp(&line[1], "map") == 0) - { - auto int rcode = EX_OK; - char *av[2]; - - if (*p == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: /map mapname key\n"); - return; - } - for (q = p; *q != '\0' && !(isascii(*q) && isspace(*q)); q++) - continue; - if (*q == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "No key specified\n"); - return; - } - *q++ = '\0'; - map = stab(p, ST_MAP, ST_FIND); - if (map == NULL) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Map named \"%s\" not found\n", p); - return; - } - if (!bitset(MF_OPEN, map->s_map.map_mflags) && - !openmap(&(map->s_map))) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Map named \"%s\" not open\n", p); - return; - } - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "map_lookup: %s (%s) ", p, q); - av[0] = q; - av[1] = NULL; - p = (*map->s_map.map_class->map_lookup) - (&map->s_map, q, av, &rcode); - if (p == NULL) - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "no match (%d)\n", - rcode); - else - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "returns %s (%d)\n", p, - rcode); - } - else if (sm_strcasecmp(&line[1], "try") == 0) - { - MAILER *m; - STAB *st; - auto int rcode = EX_OK; - - q = strpbrk(p, " \t"); - if (q != NULL) - { - while (isascii(*q) && isspace(*q)) - *q++ = '\0'; - } - if (q == NULL || *q == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: /try mailer address\n"); - return; - } - st = stab(p, ST_MAILER, ST_FIND); - if (st == NULL) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Unknown mailer %s\n", p); - return; - } - m = st->s_mailer; - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Trying %s %s address %s for mailer %s\n", - bitset(RF_HEADERADDR, tryflags) ? "header" - : "envelope", - bitset(RF_SENDERADDR, tryflags) ? "sender" - : "recipient", q, p); - p = remotename(q, m, tryflags, &rcode, CurEnv); - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Rcode = %d, addr = %s\n", - rcode, p == NULL ? "<NULL>" : p); - e->e_to = NULL; - } - else if (sm_strcasecmp(&line[1], "tryflags") == 0) - { - if (*p == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: /tryflags [Hh|Ee][Ss|Rr]\n"); - return; - } - for (; *p != '\0'; p++) - { - switch (*p) - { - case 'H': - case 'h': - tryflags |= RF_HEADERADDR; - break; - - case 'E': - case 'e': - tryflags &= ~RF_HEADERADDR; - break; - - case 'S': - case 's': - tryflags |= RF_SENDERADDR; - break; - - case 'R': - case 'r': - tryflags &= ~RF_SENDERADDR; - break; - } - } - exbuf[0] = bitset(RF_HEADERADDR, tryflags) ? 'h' : 'e'; - exbuf[1] = ' '; - exbuf[2] = bitset(RF_SENDERADDR, tryflags) ? 's' : 'r'; - exbuf[3] = '\0'; - macdefine(&e->e_macro, A_TEMP, - macid("{addr_type}"), exbuf); - } - else if (sm_strcasecmp(&line[1], "parse") == 0) - { - if (*p == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Usage: /parse address\n"); - return; - } - q = crackaddr(p); - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Cracked address = "); - xputs(q); - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "\nParsing %s %s address\n", - bitset(RF_HEADERADDR, tryflags) ? - "header" : "envelope", - bitset(RF_SENDERADDR, tryflags) ? - "sender" : "recipient"); - if (parseaddr(p, &a, tryflags, '\0', NULL, e, true) - == NULL) - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Cannot parse\n"); - else if (a.q_host != NULL && a.q_host[0] != '\0') - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "mailer %s, host %s, user %s\n", - a.q_mailer->m_name, - a.q_host, - a.q_user); - else - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "mailer %s, user %s\n", - a.q_mailer->m_name, - a.q_user); - e->e_to = NULL; - } - else - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Unknown \"/\" command %s\n", - line); - } - return; - } - - for (p = line; isascii(*p) && isspace(*p); p++) - continue; - q = p; - while (*p != '\0' && !(isascii(*p) && isspace(*p))) - p++; - if (*p == '\0') - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "No address!\n"); - return; - } - *p = '\0'; - if (invalidaddr(p + 1, NULL, true)) - return; - do - { - register char **pvp; - char pvpbuf[PSBUFSIZE]; - - pvp = prescan(++p, ',', pvpbuf, sizeof pvpbuf, - &delimptr, ConfigLevel >= 9 ? TokTypeNoC : NULL); - if (pvp == NULL) - continue; - p = q; - while (*p != '\0') - { - int status; - - rs = strtorwset(p, NULL, ST_FIND); - if (rs < 0) - { - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "Undefined ruleset %s\n", - p); - break; - } - status = REWRITE(pvp, rs, e); - if (status != EX_OK) - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "== Ruleset %s (%d) status %d\n", - p, rs, status); - while (*p != '\0' && *p++ != ',') - continue; - } - } while (*(p = delimptr) != '\0'); -} - -static void -dump_class(s, id) - register STAB *s; - int id; -{ - if (s->s_symtype != ST_CLASS) - return; - if (bitnset(bitidx(id), s->s_class)) - (void) sm_io_fprintf(smioout, SM_TIME_DEFAULT, - "%s\n", s->s_name); -} - -/* -** An exception type used to create QuickAbort exceptions. -** This is my first cut at converting QuickAbort from longjmp to exceptions. -** These exceptions have a single integer argument, which is the argument -** to longjmp in the original code (either 1 or 2). I don't know the -** significance of 1 vs 2: the calls to setjmp don't care. -*/ - -const SM_EXC_TYPE_T EtypeQuickAbort = -{ - SmExcTypeMagic, - "E:mta.quickabort", - "i", - sm_etype_printf, - "quick abort %0", -}; |