alias.c
上传用户:xu_441
上传日期:2007-01-04
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文件大小:21k
- /*
- * Copyright (c) 1998, 1999 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.
- */
- #include <sendmail.h>
- #ifndef lint
- static char id[] = "@(#)$Id: alias.c,v 8.138 1999/11/19 05:44:02 gshapiro Exp $";
- #endif /* ! lint */
- static MAP *AliasFileMap = NULL; /* the actual aliases.files map */
- static int NAliasFileMaps; /* the number of entries in AliasFileMap */
- static char *aliaslookup __P((char *, int *));
- /*
- ** ALIAS -- Compute aliases.
- **
- ** Scans the alias file for an alias for the given address.
- ** If found, it arranges to deliver to the alias list instead.
- ** Uses libdbm database if -DDBM.
- **
- ** Parameters:
- ** a -- address to alias.
- ** sendq -- a pointer to the head of the send queue
- ** to put the aliases in.
- ** aliaslevel -- the current alias nesting depth.
- ** e -- the current envelope.
- **
- ** Returns:
- ** none
- **
- ** Side Effects:
- ** Aliases found are expanded.
- **
- ** Deficiencies:
- ** It should complain about names that are aliased to
- ** nothing.
- */
- void
- alias(a, sendq, aliaslevel, e)
- register ADDRESS *a;
- ADDRESS **sendq;
- int aliaslevel;
- register ENVELOPE *e;
- {
- register char *p;
- char *owner;
- auto int status = EX_OK;
- char obuf[MAXNAME + 7];
- if (tTd(27, 1))
- dprintf("alias(%s)n", a->q_user);
- /* don't realias already aliased names */
- if (!QS_IS_OK(a->q_state))
- return;
- if (NoAlias)
- return;
- e->e_to = a->q_paddr;
- /*
- ** Look up this name.
- **
- ** If the map was unavailable, we will queue this message
- ** until the map becomes available; otherwise, we could
- ** bounce messages inappropriately.
- */
- #if _FFR_REDIRECTEMPTY
- /*
- ** envelope <> can't be sent to mailing lists, only owner-
- ** send spam of this type to owner- of the list
- ** ---- to stop spam from going to mailing lists!
- */
- if (e->e_sender != NULL && *e->e_sender == ' ')
- {
- /* Look for owner of alias */
- (void) strlcpy(obuf, "owner-", sizeof obuf);
- (void) strlcat(obuf, a->q_user, sizeof obuf);
- if (aliaslookup(obuf, &status) != NULL)
- {
- if (LogLevel > 8)
- syslog(LOG_WARNING,
- "possible spam from <> to list: %s, redirected to %sn",
- a->q_user, obuf);
- a->q_user = newstr(obuf);
- }
- }
- #endif /* _FFR_REDIRECTEMPTY */
- p = aliaslookup(a->q_user, &status);
- if (status == EX_TEMPFAIL || status == EX_UNAVAILABLE)
- {
- a->q_state = QS_QUEUEUP;
- if (e->e_message == NULL)
- e->e_message = newstr("alias database unavailable");
- return;
- }
- if (p == NULL)
- return;
- /*
- ** Match on Alias.
- ** Deliver to the target list.
- */
- if (tTd(27, 1))
- dprintf("%s (%s, %s) aliased to %sn",
- a->q_paddr, a->q_host, a->q_user, p);
- if (bitset(EF_VRFYONLY, e->e_flags))
- {
- a->q_state = QS_VERIFIED;
- return;
- }
- message("aliased to %s", shortenstring(p, MAXSHORTSTR));
- if (LogLevel > 10)
- sm_syslog(LOG_INFO, e->e_id,
- "alias %.100s => %s",
- a->q_paddr, shortenstring(p, MAXSHORTSTR));
- a->q_flags &= ~QSELFREF;
- if (tTd(27, 5))
- {
- dprintf("alias: QS_EXPANDED ");
- printaddr(a, FALSE);
- }
- a->q_state = QS_EXPANDED;
- /*
- ** Always deliver aliased items as the default user.
- ** Setting q_gid to 0 forces deliver() to use DefUser
- ** instead of the alias name for the call to initgroups().
- */
- a->q_uid = DefUid;
- a->q_gid = 0;
- a->q_fullname = NULL;
- a->q_flags |= QGOODUID;
- (void) sendtolist(p, a, sendq, aliaslevel + 1, e);
- if (bitset(QSELFREF, a->q_flags) && QS_IS_EXPANDED(a->q_state))
- a->q_state = QS_OK;
- /*
- ** Look for owner of alias
- */
- (void) strlcpy(obuf, "owner-", sizeof obuf);
- if (strncmp(a->q_user, "owner-", 6) == 0 ||
- strlen(a->q_user) > (SIZE_T) sizeof obuf - 7)
- (void) strlcat(obuf, "owner", sizeof obuf);
- else
- (void) strlcat(obuf, a->q_user, sizeof obuf);
- owner = aliaslookup(obuf, &status);
- if (owner == NULL)
- return;
- /* reflect owner into envelope sender */
- if (strpbrk(owner, ",:/|"") != NULL)
- owner = obuf;
- a->q_owner = newstr(owner);
- /* announce delivery to this alias; NORECEIPT bit set later */
- if (e->e_xfp != NULL)
- fprintf(e->e_xfp, "Message delivered to mailing list %sn",
- a->q_paddr);
- e->e_flags |= EF_SENDRECEIPT;
- a->q_flags |= QDELIVERED|QEXPANDED;
- }
- /*
- ** ALIASLOOKUP -- look up a name in the alias file.
- **
- ** Parameters:
- ** name -- the name to look up.
- ** pstat -- a pointer to a place to put the status.
- **
- ** Returns:
- ** the value of name.
- ** NULL if unknown.
- **
- ** Side Effects:
- ** none.
- **
- ** Warnings:
- ** The return value will be trashed across calls.
- */
- static char *
- aliaslookup(name, pstat)
- char *name;
- int *pstat;
- {
- static MAP *map = NULL;
- if (map == NULL)
- {
- STAB *s = stab("aliases", ST_MAP, ST_FIND);
- if (s == NULL)
- return NULL;
- map = &s->s_map;
- }
- DYNOPENMAP(map);
- /* special case POstMastER -- always use lower case */
- if (strcasecmp(name, "postmaster") == 0)
- name = "postmaster";
- return (*map->map_class->map_lookup)(map, name, NULL, pstat);
- }
- /*
- ** SETALIAS -- set up an alias map
- **
- ** Called when reading configuration file.
- **
- ** Parameters:
- ** spec -- the alias specification
- **
- ** Returns:
- ** none.
- */
- void
- setalias(spec)
- char *spec;
- {
- register char *p;
- register MAP *map;
- char *class;
- STAB *s;
- if (tTd(27, 8))
- dprintf("setalias(%s)n", spec);
- for (p = spec; p != NULL; )
- {
- char buf[50];
- while (isascii(*p) && isspace(*p))
- p++;
- if (*p == ' ')
- break;
- spec = p;
- if (NAliasFileMaps >= MAXMAPSTACK)
- {
- syserr("Too many alias databases defined, %d max",
- MAXMAPSTACK);
- return;
- }
- if (AliasFileMap == NULL)
- {
- (void) strlcpy(buf, "aliases.files sequence",
- sizeof buf);
- AliasFileMap = makemapentry(buf);
- if (AliasFileMap == NULL)
- {
- syserr("setalias: cannot create aliases.files map");
- return;
- }
- }
- (void) snprintf(buf, sizeof buf, "Alias%d", NAliasFileMaps);
- s = stab(buf, ST_MAP, ST_ENTER);
- map = &s->s_map;
- memset(map, ' ', sizeof *map);
- map->map_mname = s->s_name;
- p = strpbrk(p, " ,/:");
- if (p != NULL && *p == ':')
- {
- /* map name */
- *p++ = ' ';
- class = spec;
- spec = p;
- }
- else
- {
- class = "implicit";
- map->map_mflags = MF_INCLNULL;
- }
- /* find end of spec */
- if (p != NULL)
- {
- bool quoted = FALSE;
- for (; *p != ' '; p++)
- {
- /*
- ** Don't break into a quoted string.
- ** Needed for ldap maps which use
- ** commas in their specifications.
- */
- if (*p == '"')
- quoted = !quoted;
- else if (*p == ',' && !quoted)
- break;
- }
- /* No more alias specifications follow */
- if (*p == ' ')
- p = NULL;
- }
- if (p != NULL)
- *p++ = ' ';
- if (tTd(27, 20))
- dprintf(" map %s:%s %sn", class, s->s_name, spec);
- /* look up class */
- s = stab(class, ST_MAPCLASS, ST_FIND);
- if (s == NULL)
- {
- syserr("setalias: unknown alias class %s", class);
- }
- else if (!bitset(MCF_ALIASOK, s->s_mapclass.map_cflags))
- {
- syserr("setalias: map class %s can't handle aliases",
- class);
- }
- else
- {
- map->map_class = &s->s_mapclass;
- if (map->map_class->map_parse(map, spec))
- {
- map->map_mflags |= MF_VALID|MF_ALIAS;
- AliasFileMap->map_stack[NAliasFileMaps++] = map;
- }
- }
- }
- }
- /*
- ** ALIASWAIT -- wait for distinguished @:@ token to appear.
- **
- ** This can decide to reopen or rebuild the alias file
- **
- ** Parameters:
- ** map -- a pointer to the map descriptor for this alias file.
- ** ext -- the filename extension (e.g., ".db") for the
- ** database file.
- ** isopen -- if set, the database is already open, and we
- ** should check for validity; otherwise, we are
- ** just checking to see if it should be created.
- **
- ** Returns:
- ** TRUE -- if the database is open when we return.
- ** FALSE -- if the database is closed when we return.
- */
- bool
- aliaswait(map, ext, isopen)
- MAP *map;
- char *ext;
- bool isopen;
- {
- bool attimeout = FALSE;
- time_t mtime;
- struct stat stb;
- char buf[MAXNAME + 1];
- if (tTd(27, 3))
- dprintf("aliaswait(%s:%s)n",
- map->map_class->map_cname, map->map_file);
- if (bitset(MF_ALIASWAIT, map->map_mflags))
- return isopen;
- map->map_mflags |= MF_ALIASWAIT;
- if (SafeAlias > 0)
- {
- auto int st;
- time_t toolong = curtime() + SafeAlias;
- unsigned int sleeptime = 2;
- while (isopen &&
- map->map_class->map_lookup(map, "@", NULL, &st) == NULL)
- {
- if (curtime() > toolong)
- {
- /* we timed out */
- attimeout = TRUE;
- break;
- }
- /*
- ** Close and re-open the alias database in case
- ** the one is mv'ed instead of cp'ed in.
- */
- if (tTd(27, 2))
- dprintf("aliaswait: sleeping for %u secondsn",
- sleeptime);
- map->map_class->map_close(map);
- map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
- (void) sleep(sleeptime);
- sleeptime *= 2;
- if (sleeptime > 60)
- sleeptime = 60;
- isopen = map->map_class->map_open(map, O_RDONLY);
- }
- }
- /* see if we need to go into auto-rebuild mode */
- if (!bitset(MCF_REBUILDABLE, map->map_class->map_cflags))
- {
- if (tTd(27, 3))
- dprintf("aliaswait: not rebuildablen");
- map->map_mflags &= ~MF_ALIASWAIT;
- return isopen;
- }
- if (stat(map->map_file, &stb) < 0)
- {
- if (tTd(27, 3))
- dprintf("aliaswait: no source filen");
- map->map_mflags &= ~MF_ALIASWAIT;
- return isopen;
- }
- mtime = stb.st_mtime;
- snprintf(buf, sizeof buf, "%s%s",
- map->map_file, ext == NULL ? "" : ext);
- if (stat(buf, &stb) < 0 || stb.st_mtime < mtime || attimeout)
- {
- #if !_FFR_REMOVE_AUTOREBUILD
- /* database is out of date */
- if (AutoRebuild && stb.st_ino != 0 &&
- (stb.st_uid == geteuid() ||
- (geteuid() == 0 && stb.st_uid == TrustedUid)))
- {
- bool oldSuprErrs;
- message("auto-rebuilding alias database %s", buf);
- oldSuprErrs = SuprErrs;
- SuprErrs = TRUE;
- if (isopen)
- {
- map->map_class->map_close(map);
- map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
- }
- (void) rebuildaliases(map, TRUE);
- isopen = map->map_class->map_open(map, O_RDONLY);
- SuprErrs = oldSuprErrs;
- }
- else
- {
- if (LogLevel > 3)
- sm_syslog(LOG_INFO, NOQID,
- "alias database %s out of date",
- buf);
- message("Warning: alias database %s out of date", buf);
- }
- #else /* !_FFR_REMOVE_AUTOREBUILD */
- if (LogLevel > 3)
- sm_syslog(LOG_INFO, NOQID,
- "alias database %s out of date",
- buf);
- message("Warning: alias database %s out of date", buf);
- #endif /* !_FFR_REMOVE_AUTOREBUILD */
- }
- map->map_mflags &= ~MF_ALIASWAIT;
- return isopen;
- }
- /*
- ** REBUILDALIASES -- rebuild the alias database.
- **
- ** Parameters:
- ** map -- the database to rebuild.
- ** automatic -- set if this was automatically generated.
- **
- ** Returns:
- ** TRUE if successful; FALSE otherwise.
- **
- ** Side Effects:
- ** Reads the text version of the database, builds the
- ** DBM or DB version.
- */
- bool
- rebuildaliases(map, automatic)
- register MAP *map;
- bool automatic;
- {
- FILE *af;
- bool nolock = FALSE;
- bool success = FALSE;
- long sff = SFF_OPENASROOT|SFF_REGONLY|SFF_NOLOCK;
- sigfunc_t oldsigint, oldsigquit;
- #ifdef SIGTSTP
- sigfunc_t oldsigtstp;
- #endif /* SIGTSTP */
- if (!bitset(MCF_REBUILDABLE, map->map_class->map_cflags))
- return FALSE;
- if (!bitnset(DBS_LINKEDALIASFILEINWRITABLEDIR, DontBlameSendmail))
- sff |= SFF_NOWLINK;
- if (!bitnset(DBS_GROUPWRITABLEALIASFILE, DontBlameSendmail))
- sff |= SFF_NOGWFILES;
- if (!bitnset(DBS_WORLDWRITABLEALIASFILE, DontBlameSendmail))
- sff |= SFF_NOWWFILES;
- /* try to lock the source file */
- if ((af = safefopen(map->map_file, O_RDWR, 0, sff)) == NULL)
- {
- struct stat stb;
- if ((errno != EACCES && errno != EROFS) || automatic ||
- (af = safefopen(map->map_file, O_RDONLY, 0, sff)) == NULL)
- {
- int saveerr = errno;
- if (tTd(27, 1))
- dprintf("Can't open %s: %sn",
- map->map_file, errstring(saveerr));
- if (!automatic && !bitset(MF_OPTIONAL, map->map_mflags))
- message("newaliases: cannot open %s: %s",
- map->map_file, errstring(saveerr));
- errno = 0;
- return FALSE;
- }
- nolock = TRUE;
- if (tTd(27, 1) ||
- fstat(fileno(af), &stb) < 0 ||
- bitset(S_IWUSR|S_IWGRP|S_IWOTH, stb.st_mode))
- message("warning: cannot lock %s: %s",
- map->map_file, errstring(errno));
- }
- /* see if someone else is rebuilding the alias file */
- if (!nolock &&
- !lockfile(fileno(af), map->map_file, NULL, LOCK_EX|LOCK_NB))
- {
- /* yes, they are -- wait until done */
- message("Alias file %s is locked (maybe being rebuilt)",
- map->map_file);
- if (OpMode != MD_INITALIAS)
- {
- /* wait for other rebuild to complete */
- (void) lockfile(fileno(af), map->map_file, NULL,
- LOCK_EX);
- }
- (void) fclose(af);
- errno = 0;
- return FALSE;
- }
- oldsigint = setsignal(SIGINT, SIG_IGN);
- oldsigquit = setsignal(SIGQUIT, SIG_IGN);
- #ifdef SIGTSTP
- oldsigtstp = setsignal(SIGTSTP, SIG_IGN);
- #endif /* SIGTSTP */
- if (map->map_class->map_open(map, O_RDWR))
- {
- if (LogLevel > 7)
- {
- sm_syslog(LOG_NOTICE, NOQID,
- "alias database %s %srebuilt by %s",
- map->map_file, automatic ? "auto" : "",
- username());
- }
- map->map_mflags |= MF_OPEN|MF_WRITABLE;
- map->map_pid = getpid();
- readaliases(map, af, !automatic, TRUE);
- success = TRUE;
- }
- else
- {
- if (tTd(27, 1))
- dprintf("Can't create database for %s: %sn",
- map->map_file, errstring(errno));
- if (!automatic)
- syserr("Cannot create database for alias file %s",
- map->map_file);
- }
- /* close the file, thus releasing locks */
- (void) fclose(af);
- /* add distinguished entries and close the database */
- if (bitset(MF_OPEN, map->map_mflags))
- {
- map->map_class->map_close(map);
- map->map_mflags &= ~(MF_OPEN|MF_WRITABLE);
- }
- /* restore the old signals */
- (void) setsignal(SIGINT, oldsigint);
- (void) setsignal(SIGQUIT, oldsigquit);
- #ifdef SIGTSTP
- (void) setsignal(SIGTSTP, oldsigtstp);
- #endif /* SIGTSTP */
- return success;
- }
- /*
- ** READALIASES -- read and process the alias file.
- **
- ** This routine implements the part of initaliases that occurs
- ** when we are not going to use the DBM stuff.
- **
- ** Parameters:
- ** map -- the alias database descriptor.
- ** af -- file to read the aliases from.
- ** announcestats -- announce statistics regarding number of
- ** aliases, longest alias, etc.
- ** logstats -- lot the same info.
- **
- ** Returns:
- ** none.
- **
- ** Side Effects:
- ** Reads aliasfile into the symbol table.
- ** Optionally, builds the .dir & .pag files.
- */
- void
- readaliases(map, af, announcestats, logstats)
- register MAP *map;
- FILE *af;
- bool announcestats;
- bool logstats;
- {
- register char *p;
- char *rhs;
- bool skipping;
- long naliases, bytes, longest;
- ADDRESS al, bl;
- char line[BUFSIZ];
- /*
- ** Read and interpret lines
- */
- FileName = map->map_file;
- LineNumber = 0;
- naliases = bytes = longest = 0;
- skipping = FALSE;
- while (fgets(line, sizeof line, af) != NULL)
- {
- int lhssize, rhssize;
- int c;
- LineNumber++;
- p = strchr(line, 'n');
- while (p != NULL && p > line && p[-1] == '\')
- {
- p--;
- if (fgets(p, SPACELEFT(line, p), af) == NULL)
- break;
- LineNumber++;
- p = strchr(p, 'n');
- }
- if (p != NULL)
- *p = ' ';
- else if (!feof(af))
- {
- syserr("554 5.3.0 alias line too long");
- /* flush to end of line */
- while ((c = getc(af)) != EOF && c != 'n')
- continue;
- /* skip any continuation lines */
- skipping = TRUE;
- continue;
- }
- switch (line[0])
- {
- case '#':
- case ' ':
- skipping = FALSE;
- continue;
- case ' ':
- case 't':
- if (!skipping)
- syserr("554 5.3.5 Non-continuation line starts with space");
- skipping = TRUE;
- continue;
- }
- skipping = FALSE;
- /*
- ** Process the LHS
- ** Find the colon separator, and parse the address.
- ** It should resolve to a local name -- this will
- ** be checked later (we want to optionally do
- ** parsing of the RHS first to maximize error
- ** detection).
- */
- for (p = line; *p != ' ' && *p != ':' && *p != 'n'; p++)
- continue;
- if (*p++ != ':')
- {
- syserr("554 5.3.5 missing colon");
- continue;
- }
- if (parseaddr(line, &al, RF_COPYALL, ':', NULL, CurEnv) == NULL)
- {
- syserr("554 5.3.5 %.40s... illegal alias name", line);
- continue;
- }
- /*
- ** Process the RHS.
- ** 'al' is the internal form of the LHS address.
- ** 'p' points to the text of the RHS.
- */
- while (isascii(*p) && isspace(*p))
- p++;
- rhs = p;
- for (;;)
- {
- register char *nlp;
- nlp = &p[strlen(p)];
- if (nlp[-1] == 'n')
- *--nlp = ' ';
- if (CheckAliases)
- {
- /* do parsing & compression of addresses */
- while (*p != ' ')
- {
- auto char *delimptr;
- while ((isascii(*p) && isspace(*p)) ||
- *p == ',')
- p++;
- if (*p == ' ')
- break;
- if (parseaddr(p, &bl, RF_COPYNONE, ',',
- &delimptr, CurEnv) == NULL)
- usrerr("553 5.3.5 %s... bad address", p);
- p = delimptr;
- }
- }
- else
- {
- p = nlp;
- }
- /* see if there should be a continuation line */
- c = getc(af);
- if (!feof(af))
- (void) ungetc(c, af);
- if (c != ' ' && c != 't')
- break;
- /* read continuation line */
- if (fgets(p, sizeof line - (p - line), af) == NULL)
- break;
- LineNumber++;
- /* check for line overflow */
- if (strchr(p, 'n') == NULL && !feof(af))
- {
- usrerr("554 5.3.5 alias too long");
- while ((c = fgetc(af)) != EOF && c != 'n')
- continue;
- skipping = TRUE;
- break;
- }
- }
- if (skipping)
- continue;
- if (!bitnset(M_ALIASABLE, al.q_mailer->m_flags))
- {
- syserr("554 5.3.5 %s... cannot alias non-local names",
- al.q_paddr);
- continue;
- }
- /*
- ** Insert alias into symbol table or database file.
- **
- ** Special case pOStmaStER -- always make it lower case.
- */
- if (strcasecmp(al.q_user, "postmaster") == 0)
- makelower(al.q_user);
- lhssize = strlen(al.q_user);
- rhssize = strlen(rhs);
- map->map_class->map_store(map, al.q_user, rhs);
- if (al.q_paddr != NULL)
- free(al.q_paddr);
- if (al.q_host != NULL)
- free(al.q_host);
- if (al.q_user != NULL)
- free(al.q_user);
- /* statistics */
- naliases++;
- bytes += lhssize + rhssize;
- if (rhssize > longest)
- longest = rhssize;
- }
- CurEnv->e_to = NULL;
- FileName = NULL;
- if (Verbose || announcestats)
- message("%s: %d aliases, longest %d bytes, %d bytes total",
- map->map_file, naliases, longest, bytes);
- if (LogLevel > 7 && logstats)
- sm_syslog(LOG_INFO, NOQID,
- "%s: %d aliases, longest %d bytes, %d bytes total",
- map->map_file, naliases, longest, bytes);
- }
- /*
- ** FORWARD -- Try to forward mail
- **
- ** This is similar but not identical to aliasing.
- **
- ** Parameters:
- ** user -- the name of the user who's mail we would like
- ** to forward to. It must have been verified --
- ** i.e., the q_home field must have been filled
- ** in.
- ** sendq -- a pointer to the head of the send queue to
- ** put this user's aliases in.
- ** aliaslevel -- the current alias nesting depth.
- ** e -- the current envelope.
- **
- ** Returns:
- ** none.
- **
- ** Side Effects:
- ** New names are added to send queues.
- */
- void
- forward(user, sendq, aliaslevel, e)
- ADDRESS *user;
- ADDRESS **sendq;
- int aliaslevel;
- register ENVELOPE *e;
- {
- char *pp;
- char *ep;
- bool got_transient;
- if (tTd(27, 1))
- dprintf("forward(%s)n", user->q_paddr);
- if (!bitnset(M_HASPWENT, user->q_mailer->m_flags) ||
- !QS_IS_OK(user->q_state))
- return;
- if (user->q_home == NULL)
- {
- syserr("554 5.3.0 forward: no home");
- user->q_home = "/no/such/directory";
- }
- /* good address -- look for .forward file in home */
- define('z', user->q_home, e);
- define('u', user->q_user, e);
- define('h', user->q_host, e);
- if (ForwardPath == NULL)
- ForwardPath = newstr("201z/.forward");
- got_transient = FALSE;
- for (pp = ForwardPath; pp != NULL; pp = ep)
- {
- int err;
- char buf[MAXPATHLEN + 1];
- struct stat st;
- ep = strchr(pp, ':');
- if (ep != NULL)
- *ep = ' ';
- expand(pp, buf, sizeof buf, e);
- if (ep != NULL)
- *ep++ = ':';
- if (buf[0] == ' ')
- continue;
- if (tTd(27, 3))
- dprintf("forward: trying %sn", buf);
- err = include(buf, TRUE, user, sendq, aliaslevel, e);
- if (err == 0)
- break;
- else if (transienterror(err))
- {
- /* we may have to suspend this message */
- got_transient = TRUE;
- if (tTd(27, 2))
- dprintf("forward: transient error on %sn",
- buf);
- if (LogLevel > 2)
- {
- char *curhost = CurHostName;
- CurHostName = NULL;
- sm_syslog(LOG_ERR, e->e_id,
- "forward %s: transient error: %s",
- buf, errstring(err));
- CurHostName = curhost;
- }
- }
- else
- {
- switch (err)
- {
- case ENOENT:
- break;
- case E_SM_WWDIR:
- case E_SM_GWDIR:
- /* check if it even exists */
- if (stat(buf, &st) < 0 && errno == ENOENT)
- {
- if (bitnset(DBS_DONTWARNFORWARDFILEINUNSAFEDIRPATH,
- DontBlameSendmail))
- break;
- }
- /* FALLTHROUGH */
- #if _FFR_FORWARD_SYSERR
- case E_SM_NOSLINK:
- case E_SM_NOHLINK:
- case E_SM_REGONLY:
- case E_SM_ISEXEC:
- case E_SM_WWFILE:
- case E_SM_GWFILE:
- syserr("forward: %s: %s", buf, errstring(err));
- break;
- #endif /* _FFR_FORWARD_SYSERR */
- default:
- if (LogLevel > (RunAsUid == 0 ? 2 : 10))
- sm_syslog(LOG_WARNING, e->e_id,
- "forward %s: %s", buf,
- errstring(err));
- if (Verbose)
- message("forward: %s: %s",
- buf,
- errstring(err));
- break;
- }
- }
- }
- if (pp == NULL && got_transient)
- {
- /*
- ** There was no successful .forward open and at least one
- ** transient open. We have to defer this address for
- ** further delivery.
- */
- message("transient .forward open error: message queued");
- user->q_state = QS_QUEUEUP;
- return;
- }
- }