2 * Copyright (c) 1998-2003, 2010 Proofpoint, Inc. and its suppliers.
4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved.
5 * Copyright (c) 1988, 1993
6 * The Regents of the University of California. All rights reserved.
8 * By using this file, you agree to the terms and conditions set
9 * forth in the LICENSE file which can be found at the top level of
10 * the sendmail distribution.
16 SM_RCSID("@(#)$Id: err.c,v 8.206 2013-11-22 20:51:55 ca Exp $")
20 # include <ldap.h> /* for LDAP error codes */
23 static void putoutmsg __P((char *, bool, bool));
24 static void puterrmsg __P((char *));
25 static char *fmtmsg __P((char *, const char *, const char *, const char *,
26 int, const char *, va_list));
29 ** FATAL_ERROR -- handle a fatal exception
31 ** This function is installed as the default exception handler
32 ** in the main sendmail process, and in all child processes
33 ** that we create. Its job is to handle exceptions that are not
34 ** handled at a lower level.
36 ** The theory is that unhandled exceptions will be 'fatal' class
37 ** exceptions (with an "F:" prefix), such as the out-of-memory
38 ** exception "F:sm.heap". As such, they are handled by exiting
39 ** the process in exactly the same way that xalloc() in Sendmail 8.10
40 ** exits the process when it fails due to lack of memory:
41 ** we call syserr with a message beginning with "!".
44 ** exc -- exception which is terminating this process
58 ** This function may be called when the heap is exhausted.
59 ** The following code writes the message for 'exc' into our
60 ** static buffer without allocating memory or raising exceptions.
63 sm_strio_init(&f, buf, sizeof(buf));
64 sm_exc_write(exc, &f);
65 (void) sm_io_flush(&f, SM_TIME_DEFAULT);
68 ** Terminate the process after logging an error and cleaning up.
70 ** - syserr decides what class of error this is by looking at errno.
71 ** That's no good; we should look at the exc structure.
72 ** - The cleanup code should be moved out of syserr
73 ** and into individual exception handlers
74 ** that are part of the module they clean up after.
82 ** SYSERR -- Print error message.
84 ** Prints an error message via sm_io_printf to the diagnostic output.
86 ** If the first character of the syserr message is `!' it will
87 ** log this as an ALERT message and exit immediately. This can
88 ** leave queue files in an indeterminate state, so it should not
91 ** If the first character of the syserr message is '!' or '@'
92 ** then syserr knows that the process is about to be terminated,
93 ** so the SMTP reply code defaults to 421. Otherwise, the
94 ** reply code defaults to 451 or 554, depending on errno.
97 ** fmt -- the format string. An optional '!', '@', or '+',
98 ** followed by an optional three-digit SMTP
99 ** reply code, followed by message text.
100 ** (others) -- parameters
104 ** Raises E:mta.quickabort if QuickAbort is set.
107 ** increments Errors.
111 char MsgBuf[BUFSIZ*2]; /* text of most recent message */
112 static char HeldMessageBuf[sizeof(MsgBuf)]; /* for held messages */
114 #if NAMED_BIND && !defined(NO_DATA)
115 # define NO_DATA NO_ADDRESS
116 #endif /* NAMED_BIND && !defined(NO_DATA) */
121 syserr(const char *fmt, ...)
123 syserr(fmt, va_alist)
126 #endif /* __STDC__ */
129 int save_errno = errno;
130 bool panic, exiting, keep;
138 panic = exiting = keep = false;
143 panic = exiting = true;
157 /* format and output the error message */
161 ** Since we are terminating the process,
162 ** we are aborting the entire SMTP session,
163 ** rather than just the current transaction.
169 else if (save_errno == 0)
179 SM_VA_START(ap, fmt);
180 errtxt = fmtmsg(MsgBuf, (char *) NULL, p, enhsc, save_errno, fmt, ap);
184 /* save this message for mailq printing */
185 if (!panic && CurEnv != NULL && (!keep || CurEnv->e_message == NULL))
187 char *nmsg = sm_rpool_strdup_x(CurEnv->e_rpool, errtxt);
189 if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL)
190 sm_free(CurEnv->e_message);
191 CurEnv->e_message = nmsg;
194 /* determine exit status if not already set */
195 if (ExitStat == EX_OK)
198 ExitStat = EX_SOFTWARE;
202 sm_dprintf("syserr: ExitStat = %d\n", ExitStat);
205 pw = sm_getpwuid(RealUid);
211 (void) sm_snprintf(ubuf, sizeof(ubuf), "UID%d", (int) RealUid);
215 sm_syslog(panic ? LOG_ALERT : LOG_CRIT,
216 CurEnv == NULL ? NOQID : CurEnv->e_id,
217 "SYSERR(%s): %.900s",
241 mci_dump_all(smioout, true);
256 sm_exc_raisenew_x(&EtypeQuickAbort, 2);
259 ** USRERR -- Signal user error.
261 ** This is much like syserr except it is for user errors.
264 ** fmt -- the format string. If it does not begin with
265 ** a three-digit SMTP reply code, 550 is assumed.
266 ** (others) -- sm_io_printf strings
270 ** Raises E:mta.quickabort if QuickAbort is set.
273 ** increments Errors.
279 usrerr(const char *fmt, ...)
281 usrerr(fmt, va_alist)
284 #endif /* __STDC__ */
290 if (fmt[0] == '5' || fmt[0] == '6')
292 else if (fmt[0] == '4' || fmt[0] == '8')
294 else if (fmt[0] == '2')
298 SM_VA_START(ap, fmt);
299 errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "550", enhsc, 0, fmt, ap);
305 /* save this message for mailq printing */
310 if (CurEnv->e_message != NULL)
317 if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL)
318 sm_free(CurEnv->e_message);
319 if (MsgBuf[0] == '6')
323 (void) sm_snprintf(buf, sizeof(buf),
324 "Postmaster warning: %.*s",
325 (int) sizeof(buf) - 22, errtxt);
327 sm_rpool_strdup_x(CurEnv->e_rpool, buf);
332 sm_rpool_strdup_x(CurEnv->e_rpool, errtxt);
338 if (LogLevel > 3 && LogUsrErrs)
339 sm_syslog(LOG_NOTICE, CurEnv->e_id, "%.900s", errtxt);
341 sm_exc_raisenew_x(&EtypeQuickAbort, 1);
344 ** USRERRENH -- Signal user error.
346 ** Same as usrerr but with enhanced status code.
349 ** enhsc -- the enhanced status code.
350 ** fmt -- the format string. If it does not begin with
351 ** a three-digit SMTP reply code, 550 is assumed.
352 ** (others) -- sm_io_printf strings
356 ** Raises E:mta.quickabort if QuickAbort is set.
359 ** increments Errors.
365 usrerrenh(char *enhsc, const char *fmt, ...)
367 usrerrenh(enhsc, fmt, va_alist)
371 #endif /* __STDC__ */
376 if (enhsc == NULL || *enhsc == '\0')
378 if (fmt[0] == '5' || fmt[0] == '6')
380 else if (fmt[0] == '4' || fmt[0] == '8')
382 else if (fmt[0] == '2')
385 SM_VA_START(ap, fmt);
386 errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "550", enhsc, 0, fmt, ap);
392 /* save this message for mailq printing */
397 if (CurEnv->e_message != NULL)
404 if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL)
405 sm_free(CurEnv->e_message);
406 if (MsgBuf[0] == '6')
410 (void) sm_snprintf(buf, sizeof(buf),
411 "Postmaster warning: %.*s",
412 (int) sizeof(buf) - 22, errtxt);
414 sm_rpool_strdup_x(CurEnv->e_rpool, buf);
419 sm_rpool_strdup_x(CurEnv->e_rpool, errtxt);
425 if (LogLevel > 3 && LogUsrErrs)
426 sm_syslog(LOG_NOTICE, CurEnv->e_id, "%.900s", errtxt);
428 sm_exc_raisenew_x(&EtypeQuickAbort, 1);
432 ** MESSAGE -- print message (not necessarily an error)
435 ** msg -- the message (sm_io_printf fmt) -- it can begin with
436 ** an SMTP reply code. If not, 050 is assumed.
437 ** (others) -- sm_io_printf arguments
449 message(const char *msg, ...)
451 message(msg, va_alist)
454 #endif /* __STDC__ */
460 SM_VA_START(ap, msg);
461 errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "050", (char *) NULL, 0, msg, ap);
463 putoutmsg(MsgBuf, false, false);
465 /* save this message for mailq printing */
470 if (CurEnv->e_message != NULL)
475 if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL)
476 sm_free(CurEnv->e_message);
477 CurEnv->e_message = sm_rpool_strdup_x(CurEnv->e_rpool, errtxt);
484 ** EMESSAGE -- print message (not necessarily an error)
485 ** (same as message() but requires reply code and enhanced status code)
488 ** replycode -- SMTP reply code.
489 ** enhsc -- enhanced status code.
490 ** msg -- the message (sm_io_printf fmt) -- it can begin with
491 ** an SMTP reply code. If not, 050 is assumed.
492 ** (others) -- sm_io_printf arguments
504 emessage(const char *replycode, const char *enhsc, const char *msg, ...)
505 # else /* __STDC__ */
506 emessage(replycode, enhsc, msg, va_alist)
507 const char *replycode;
511 # endif /* __STDC__ */
517 SM_VA_START(ap, msg);
518 errtxt = fmtmsg(MsgBuf, CurEnv->e_to, replycode, enhsc, 0, msg, ap);
520 putoutmsg(MsgBuf, false, false);
522 /* save this message for mailq printing */
527 if (CurEnv->e_message != NULL)
532 if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL)
533 sm_free(CurEnv->e_message);
534 CurEnv->e_message = sm_rpool_strdup_x(CurEnv->e_rpool, errtxt);
540 ** EXTSC -- check and extract a status codes
543 ** msg -- string with possible enhanced status code.
544 ** delim -- delim for enhanced status code.
545 ** replycode -- pointer to storage for SMTP reply code;
546 ** must be != NULL and have space for at least
548 ** enhsc -- pointer to storage for enhanced status code;
549 ** must be != NULL and have space for at least
550 ** 10 characters ([245].[0-9]{1,3}.[0-9]{1,3})
553 ** -1 -- no SMTP reply code.
554 ** >=3 -- offset of error text in msg.
555 ** (<=4 -- no enhanced status code)
559 extsc(msg, delim, replycode, enhsc)
567 SM_REQUIRE(replycode != NULL);
568 SM_REQUIRE(enhsc != NULL);
573 if (!ISSMTPREPLY(msg))
575 sm_strlcpy(replycode, msg, 4);
579 if (isenhsc(msg + 4, delim))
580 offset = extenhsc(msg + 4, delim, enhsc) + 4;
583 #endif /* _FFR_PROXY */
586 ** NMESSAGE -- print message (not necessarily an error)
588 ** Just like "message" except it never puts the to... tag on.
591 ** msg -- the message (sm_io_printf fmt) -- if it begins
592 ** with a three digit SMTP reply code, that is used,
593 ** otherwise 050 is assumed.
594 ** (others) -- sm_io_printf arguments
606 nmessage(const char *msg, ...)
608 nmessage(msg, va_alist)
611 #endif /* __STDC__ */
617 SM_VA_START(ap, msg);
618 errtxt = fmtmsg(MsgBuf, (char *) NULL, "050",
619 (char *) NULL, 0, msg, ap);
621 putoutmsg(MsgBuf, false, false);
623 /* save this message for mailq printing */
628 if (CurEnv->e_message != NULL)
633 if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL)
634 sm_free(CurEnv->e_message);
635 CurEnv->e_message = sm_rpool_strdup_x(CurEnv->e_rpool, errtxt);
640 ** PUTOUTMSG -- output error message to transcript and channel
643 ** msg -- message to output (in SMTP format).
644 ** holdmsg -- if true, don't output a copy of the message to
645 ** our output channel.
646 ** heldmsg -- if true, this is a previously held message;
647 ** don't log it to the transcript file.
653 ** Outputs msg to the transcript.
654 ** If appropriate, outputs it to the channel.
655 ** Deletes SMTP reply code number as appropriate.
659 putoutmsg(msg, holdmsg, heldmsg)
664 char msgcode = msg[0];
668 /* display for debugging */
670 sm_dprintf("--- %s%s%s\n", msg, holdmsg ? " (hold)" : "",
671 heldmsg ? " (held)" : "");
673 /* map warnings to something SMTP can handle */
676 else if (msgcode == '8')
678 id = (CurEnv != NULL) ? CurEnv->e_id : NULL;
680 /* output to transcript if serious */
681 if (!heldmsg && CurEnv != NULL && CurEnv->e_xfp != NULL &&
682 strchr("45", msg[0]) != NULL)
683 (void) sm_io_fprintf(CurEnv->e_xfp, SM_TIME_DEFAULT, "%s\n",
686 if (LogLevel > 14 && (OpMode == MD_SMTP || OpMode == MD_DAEMON))
687 sm_syslog(LOG_INFO, id,
688 "--- %s%s%s", msg, holdmsg ? " (hold)" : "",
689 heldmsg ? " (held)" : "");
694 /* output to channel if appropriate */
695 if (!Verbose && msg[0] == '0')
699 /* save for possible future display */
701 if (HeldMessageBuf[0] == '5' && msgcode == '4')
703 (void) sm_strlcpy(HeldMessageBuf, msg, sizeof(HeldMessageBuf));
707 (void) sm_io_flush(smioout, SM_TIME_DEFAULT);
709 if (OutChannel == NULL)
712 /* find actual text of error (after SMTP status codes) */
713 if (ISSMTPREPLY(errtxt))
718 l = isenhsc(errtxt, ' ');
720 l = isenhsc(errtxt, '\0');
725 /* if DisConnected, OutChannel now points to the transcript */
727 (OpMode == MD_SMTP || OpMode == MD_DAEMON || OpMode == MD_ARPAFTP))
728 (void) sm_io_fprintf(OutChannel, SM_TIME_DEFAULT, "%s\r\n",
731 (void) sm_io_fprintf(OutChannel, SM_TIME_DEFAULT, "%s\n",
733 if (TrafficLogFile != NULL)
734 (void) sm_io_fprintf(TrafficLogFile, SM_TIME_DEFAULT,
735 "%05d >>> %s\n", (int) CurrentPid,
736 (OpMode == MD_SMTP || OpMode == MD_DAEMON)
739 /* XXX can't flush here for SMTP pipelining */
741 (void) sm_io_flush(OutChannel, SM_TIME_DEFAULT);
742 if (!sm_io_error(OutChannel) || DisConnected)
746 ** Error on output -- if reporting lost channel, just ignore it.
747 ** Also, ignore errors from QUIT response (221 message) -- some
748 ** rude servers don't read result.
751 if (InChannel == NULL || sm_io_eof(InChannel) ||
752 sm_io_error(InChannel) || strncmp(msg, "221", 3) == 0)
755 /* can't call syserr, 'cause we are using MsgBuf */
758 sm_syslog(LOG_CRIT, id,
759 "SYSERR: putoutmsg (%s): error on output channel sending \"%s\": %s",
761 shortenstring(msg, MAXSHORTSTR), sm_errstring(errno));
762 #endif /* !PIPELINING */
765 ** PUTERRMSG -- like putoutmsg, but does special processing for error messages
768 ** msg -- the message to output.
774 ** Sets the fatal error bit in the envelope as appropriate.
781 char msgcode = msg[0];
783 /* output the message as usual */
784 putoutmsg(msg, HoldErrs, false);
786 /* be careful about multiple error messages */
790 /* signal the error */
798 /* notify the postmaster */
799 CurEnv->e_flags |= EF_PM_NOTIFY;
801 else if (msgcode == '5' && bitset(EF_GLOBALERRS, CurEnv->e_flags))
803 /* mark long-term fatal errors */
804 CurEnv->e_flags |= EF_FATALERRS;
808 ** ISENHSC -- check whether a string contains an enhanced status code
811 ** s -- string with possible enhanced status code.
812 ** delim -- delim for enhanced status code.
815 ** 0 -- no enhanced status code.
816 ** >4 -- length of enhanced status code.
830 if (!((*s == '2' || *s == '4' || *s == '5') && s[1] == '.'))
834 while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
836 if (h == 0 || s[l + h] != '.')
840 while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
842 if (h == 0 || s[l + h] != delim)
847 ** EXTENHSC -- check and extract an enhanced status code
850 ** s -- string with possible enhanced status code.
851 ** delim -- delim for enhanced status code.
852 ** e -- pointer to storage for enhanced status code.
853 ** must be != NULL and have space for at least
854 ** 10 characters ([245].[0-9]{1,3}.[0-9]{1,3})
857 ** 0 -- no enhanced status code.
858 ** >4 -- length of enhanced status code.
861 ** fills e with enhanced status code.
865 extenhsc(s, delim, e)
874 if (!((*s == '2' || *s == '4' || *s == '5') && s[1] == '.'))
880 while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
885 if (h == 0 || s[l + h] != '.')
890 while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
895 if (h == 0 || s[l + h] != delim)
901 ** FMTMSG -- format a message into buffer.
904 ** eb -- error buffer to get result -- MUST BE MsgBuf.
905 ** to -- the recipient tag for this message.
906 ** num -- default three digit SMTP reply code.
907 ** enhsc -- enhanced status code.
908 ** en -- the error number to display.
909 ** fmt -- format of string.
910 ** ap -- arguments for fmt.
913 ** pointer to error text beyond status codes.
920 fmtmsg(eb, to, num, enhsc, eno, fmt, ap)
931 int spaceleft = sizeof(MsgBuf);
934 /* output the reply code */
944 if (SoftBounce && num[0] == '5')
947 (void) sm_snprintf(eb, spaceleft, "4%2.2s%c", num + 1, del);
950 (void) sm_snprintf(eb, spaceleft, "%3.3s%c", num, del);
954 if ((l = isenhsc(fmt, ' ' )) > 0 && l < spaceleft - 4)
956 /* copy enh.status code including trailing blank */
958 (void) sm_strlcpy(eb, fmt, l + 1);
963 else if ((l = isenhsc(enhsc, '\0')) > 0 && l < spaceleft - 4)
965 /* copy enh.status code */
966 (void) sm_strlcpy(eb, enhsc, l + 1);
972 if (SoftBounce && eb[-l] == '5')
979 /* output the file name and line number */
980 if (FileName != NULL)
982 (void) sm_snprintf(eb, spaceleft, "%s: line %d: ",
983 shortenstring(FileName, 83), LineNumber);
984 eb += (l = strlen(eb));
989 ** output the "to" address only if it is defined and one of the
990 ** following codes is used:
991 ** 050 internal notices, e.g., alias expansion
993 ** 252 Cannot VRFY user, but will accept message and attempt delivery
994 ** 450 Requested mail action not taken: mailbox unavailable
995 ** 550 Requested action not taken: mailbox unavailable
996 ** 553 Requested action not taken: mailbox name not allowed
998 ** Notice: this still isn't "the right thing", this code shouldn't
999 ** (indirectly) depend on CurEnv->e_to.
1002 if (to != NULL && to[0] != '\0' &&
1003 (strncmp(num, "050", 3) == 0 ||
1004 strncmp(num, "250", 3) == 0 ||
1005 strncmp(num, "252", 3) == 0 ||
1006 strncmp(num, "450", 3) == 0 ||
1007 strncmp(num, "550", 3) == 0 ||
1008 strncmp(num, "553", 3) == 0))
1010 (void) sm_strlcpyn(eb, spaceleft, 2,
1011 shortenstring(to, MAXSHORTSTR), "... ");
1012 spaceleft -= strlen(eb);
1017 /* output the message */
1018 (void) sm_vsnprintf(eb, spaceleft, fmt, ap);
1019 spaceleft -= strlen(eb);
1023 /* output the error code, if any */
1025 (void) sm_strlcpyn(eb, spaceleft, 2, ": ", sm_errstring(eno));
1030 ** BUFFER_ERRORS -- arrange to buffer future error messages
1042 HeldMessageBuf[0] = '\0';
1046 ** FLUSH_ERRORS -- flush the held error message buffer
1049 ** print -- if set, print the message, otherwise just
1060 if (print && HeldMessageBuf[0] != '\0')
1061 putoutmsg(HeldMessageBuf, false, true);
1062 HeldMessageBuf[0] = '\0';
1066 ** SM_ERRSTRING -- return string description of error code
1069 ** errnum -- the error number to translate
1072 ** A string description of errnum.
1079 sm_errstring(errnum)
1084 static char buf[MAXLINE];
1088 #endif /* HASSTRERROR */
1089 #if !HASSTRERROR && !defined(ERRLIST_PREDEFINED)
1090 extern char *sys_errlist[];
1091 extern int sys_nerr;
1092 #endif /* !HASSTRERROR && !defined(ERRLIST_PREDEFINED) */
1095 ** Handle special network error codes.
1097 ** These are 4.2/4.3bsd specific; they should be in daemon.c.
1107 err = strerror(errnum);
1110 (void) sm_snprintf(errbuf, sizeof(errbuf),
1111 "Error %d", errnum);
1114 (void) sm_strlcpy(bp, err, SPACELEFT(buf, bp));
1115 #else /* HASSTRERROR */
1116 if (errnum >= 0 && errnum < sys_nerr)
1117 (void) sm_strlcpy(bp, sys_errlist[errnum],
1118 SPACELEFT(buf, bp));
1120 (void) sm_snprintf(bp, SPACELEFT(buf, bp),
1121 "Error %d", errnum);
1122 #endif /* HASSTRERROR */
1124 if (CurHostName != NULL)
1126 if (errnum == ETIMEDOUT)
1128 (void) sm_snprintf(bp, SPACELEFT(buf, bp),
1135 (void) sm_snprintf(bp, SPACELEFT(buf, bp),
1136 "Connection reset by ");
1139 (void) sm_strlcpy(bp,
1140 shortenstring(CurHostName, MAXSHORTSTR),
1141 SPACELEFT(buf, bp));
1144 if (SmtpPhase != NULL)
1146 (void) sm_snprintf(bp, SPACELEFT(buf, bp),
1147 " during %s", SmtpPhase);
1152 if (CurHostName == NULL)
1154 (void) sm_snprintf(buf, sizeof(buf), "Host %s is down",
1155 shortenstring(CurHostName, MAXSHORTSTR));
1159 if (CurHostName == NULL)
1161 (void) sm_strlcpyn(buf, sizeof(buf), 2, "Connection refused by ",
1162 shortenstring(CurHostName, MAXSHORTSTR));
1166 case HOST_NOT_FOUND + E_DNSBASE:
1167 dnsmsg = "host not found";
1170 case TRY_AGAIN + E_DNSBASE:
1171 dnsmsg = "host name lookup failure";
1174 case NO_RECOVERY + E_DNSBASE:
1175 dnsmsg = "non-recoverable error";
1178 case NO_DATA + E_DNSBASE:
1179 dnsmsg = "no data known";
1181 #endif /* NAMED_BIND */
1184 /* SunOS gives "Not owner" -- this is the POSIX message */
1185 return "Operation not permitted";
1188 ** Error messages used internally in sendmail.
1191 case E_SM_OPENTIMEOUT:
1192 return "Timeout on file open";
1195 return "Symbolic links not allowed";
1198 return "Hard links not allowed";
1201 return "Regular files only";
1204 return "Executable files not allowed";
1207 return "World writable directory";
1210 return "Group writable directory";
1212 case E_SM_FILECHANGE:
1213 return "File changed after open";
1216 return "World writable file";
1219 return "Group writable file";
1222 return "Group readable file";
1225 return "World readable file";
1231 bp += sm_strlcpy(bp, "Name server: ", sizeof(buf));
1232 if (CurHostName != NULL)
1234 (void) sm_strlcpyn(bp, SPACELEFT(buf, bp), 2,
1235 shortenstring(CurHostName, MAXSHORTSTR), ": ");
1238 (void) sm_strlcpy(bp, dnsmsg, SPACELEFT(buf, bp));
1243 if (errnum >= E_LDAPBASE - E_LDAP_SHIM)
1244 return ldap_err2string(errnum - E_LDAPBASE);
1245 #endif /* LDAPMAP */
1248 err = strerror(errnum);
1251 (void) sm_snprintf(buf, sizeof(buf), "Error %d", errnum);
1255 #else /* HASSTRERROR */
1256 if (errnum > 0 && errnum < sys_nerr)
1257 return sys_errlist[errnum];
1259 (void) sm_snprintf(buf, sizeof(buf), "Error %d", errnum);
1261 #endif /* HASSTRERROR */