err.c
上传用户:xu_441
上传日期:2007-01-04
资源大小:1640k
文件大小:20k
- /*
- * 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.
- *
- */
- #ifndef lint
- static char id[] = "@(#)$Id: err.c,v 8.116 1999/11/29 18:12:11 gshapiro Exp $";
- #endif /* ! lint */
- #include <sendmail.h>
- #ifdef LDAPMAP
- # include <lber.h>
- # include <ldap.h> /* for LDAP error codes */
- #endif /* LDAPMAP */
- static void putoutmsg __P((char *, bool, bool));
- static void puterrmsg __P((char *));
- static char *fmtmsg __P((char *, const char *, const char *, const char *,
- int, const char *, va_list));
- /*
- ** SYSERR -- Print error message.
- **
- ** Prints an error message via printf to the diagnostic output.
- **
- ** If the first character of the syserr message is `!' it will
- ** log this as an ALERT message and exit immediately. This can
- ** leave queue files in an indeterminate state, so it should not
- ** be used lightly.
- **
- ** Parameters:
- ** fmt -- the format string. If it does not begin with
- ** a three-digit SMTP reply code, either 554 or
- ** 451 is assumed depending on whether errno
- ** is set.
- ** (others) -- parameters
- **
- ** Returns:
- ** none
- ** Through TopFrame if QuickAbort is set.
- **
- ** Side Effects:
- ** increments Errors.
- ** sets ExitStat.
- */
- char MsgBuf[BUFSIZ*2]; /* text of most recent message */
- static char HeldMessageBuf[sizeof MsgBuf]; /* for held messages */
- #if NAMED_BIND && !defined(NO_DATA)
- # define NO_DATA NO_ADDRESS
- #endif /* NAMED_BIND && !defined(NO_DATA) */
- void
- /*VARARGS1*/
- #ifdef __STDC__
- syserr(const char *fmt, ...)
- #else /* __STDC__ */
- syserr(fmt, va_alist)
- const char *fmt;
- va_dcl
- #endif /* __STDC__ */
- {
- register char *p;
- int save_errno = errno;
- bool panic;
- char *user;
- char *enhsc;
- char *errtxt;
- struct passwd *pw;
- char ubuf[80];
- VA_LOCAL_DECL
- panic = *fmt == '!';
- if (panic)
- {
- fmt++;
- HoldErrs = FALSE;
- }
- /* format and output the error message */
- if (save_errno == 0)
- {
- p = "554";
- enhsc = "5.0.0";
- }
- else
- {
- p = "451";
- enhsc = "4.0.0";
- }
- VA_START(fmt);
- errtxt = fmtmsg(MsgBuf, (char *) NULL, p, enhsc, save_errno, fmt, ap);
- VA_END;
- puterrmsg(MsgBuf);
- /* save this message for mailq printing */
- if (!panic && CurEnv != NULL)
- {
- if (CurEnv->e_message != NULL)
- free(CurEnv->e_message);
- CurEnv->e_message = newstr(errtxt);
- }
- /* determine exit status if not already set */
- if (ExitStat == EX_OK)
- {
- if (save_errno == 0)
- ExitStat = EX_SOFTWARE;
- else
- ExitStat = EX_OSERR;
- if (tTd(54, 1))
- dprintf("syserr: ExitStat = %dn", ExitStat);
- }
- pw = sm_getpwuid(getuid());
- if (pw != NULL)
- user = pw->pw_name;
- else
- {
- user = ubuf;
- snprintf(ubuf, sizeof ubuf, "UID%d", (int) getuid());
- }
- if (LogLevel > 0)
- sm_syslog(panic ? LOG_ALERT : LOG_CRIT,
- CurEnv == NULL ? NOQID : CurEnv->e_id,
- "SYSERR(%s): %.900s",
- user, errtxt);
- switch (save_errno)
- {
- case EBADF:
- case ENFILE:
- case EMFILE:
- case ENOTTY:
- #ifdef EFBIG
- case EFBIG:
- #endif /* EFBIG */
- #ifdef ESPIPE
- case ESPIPE:
- #endif /* ESPIPE */
- #ifdef EPIPE
- case EPIPE:
- #endif /* EPIPE */
- #ifdef ENOBUFS
- case ENOBUFS:
- #endif /* ENOBUFS */
- #ifdef ESTALE
- case ESTALE:
- #endif /* ESTALE */
- printopenfds(TRUE);
- mci_dump_all(TRUE);
- break;
- }
- if (panic)
- {
- #ifdef XLA
- xla_all_end();
- #endif /* XLA */
- sync_queue_time();
- if (tTd(0, 1))
- abort();
- exit(EX_OSERR);
- }
- errno = 0;
- if (QuickAbort)
- longjmp(TopFrame, 2);
- }
- /*
- ** USRERR -- Signal user error.
- **
- ** This is much like syserr except it is for user errors.
- **
- ** Parameters:
- ** fmt -- the format string. If it does not begin with
- ** a three-digit SMTP reply code, 501 is assumed.
- ** (others) -- printf strings
- **
- ** Returns:
- ** none
- ** Through TopFrame if QuickAbort is set.
- **
- ** Side Effects:
- ** increments Errors.
- */
- /*VARARGS1*/
- void
- #ifdef __STDC__
- usrerr(const char *fmt, ...)
- #else /* __STDC__ */
- usrerr(fmt, va_alist)
- const char *fmt;
- va_dcl
- #endif /* __STDC__ */
- {
- char *enhsc;
- char *errtxt;
- VA_LOCAL_DECL
- if (fmt[0] == '5' || fmt[0] == '6')
- enhsc = "5.0.0";
- else if (fmt[0] == '4' || fmt[0] == '8')
- enhsc = "4.0.0";
- else if (fmt[0] == '2')
- enhsc = "2.0.0";
- else
- enhsc = NULL;
- VA_START(fmt);
- errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "501", enhsc, 0, fmt, ap);
- VA_END;
- if (SuprErrs)
- return;
- /* save this message for mailq printing */
- switch (MsgBuf[0])
- {
- case '4':
- case '8':
- if (CurEnv->e_message != NULL)
- break;
- /* FALLTHROUGH */
- case '5':
- case '6':
- if (CurEnv->e_message != NULL)
- free(CurEnv->e_message);
- if (MsgBuf[0] == '6')
- {
- char buf[MAXLINE];
- snprintf(buf, sizeof buf, "Postmaster warning: %.*s",
- (int) sizeof buf - 22, errtxt);
- CurEnv->e_message = newstr(buf);
- }
- else
- {
- CurEnv->e_message = newstr(errtxt);
- }
- break;
- }
- puterrmsg(MsgBuf);
- if (LogLevel > 3 && LogUsrErrs)
- sm_syslog(LOG_NOTICE, CurEnv->e_id, "%.900s", errtxt);
- if (QuickAbort)
- longjmp(TopFrame, 1);
- }
- /*
- ** USRERRENH -- Signal user error.
- **
- ** Same as usrerr but with enhanced status code.
- **
- ** Parameters:
- ** enhsc -- the enhanced status code.
- ** fmt -- the format string. If it does not begin with
- ** a three-digit SMTP reply code, 501 is assumed.
- ** (others) -- printf strings
- **
- ** Returns:
- ** none
- ** Through TopFrame if QuickAbort is set.
- **
- ** Side Effects:
- ** increments Errors.
- */
- /*VARARGS1*/
- void
- #ifdef __STDC__
- usrerrenh(char *enhsc, const char *fmt, ...)
- #else /* __STDC__ */
- usrerrenh(enhsc, fmt, va_alist)
- char *enhsc;
- const char *fmt;
- va_dcl
- #endif /* __STDC__ */
- {
- char *errtxt;
- VA_LOCAL_DECL
- if (enhsc == NULL || *enhsc == ' ')
- {
- if (fmt[0] == '5' || fmt[0] == '6')
- enhsc = "5.0.0";
- else if (fmt[0] == '4' || fmt[0] == '8')
- enhsc = "4.0.0";
- else if (fmt[0] == '2')
- enhsc = "2.0.0";
- }
- VA_START(fmt);
- errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "501", enhsc, 0, fmt, ap);
- VA_END;
- if (SuprErrs)
- return;
- /* save this message for mailq printing */
- switch (MsgBuf[0])
- {
- case '4':
- case '8':
- if (CurEnv->e_message != NULL)
- break;
- /* FALLTHROUGH */
- case '5':
- case '6':
- if (CurEnv->e_message != NULL)
- free(CurEnv->e_message);
- if (MsgBuf[0] == '6')
- {
- char buf[MAXLINE];
- snprintf(buf, sizeof buf, "Postmaster warning: %.*s",
- (int) sizeof buf - 22, errtxt);
- CurEnv->e_message = newstr(buf);
- }
- else
- {
- CurEnv->e_message = newstr(errtxt);
- }
- break;
- }
- puterrmsg(MsgBuf);
- if (LogLevel > 3 && LogUsrErrs)
- sm_syslog(LOG_NOTICE, CurEnv->e_id, "%.900s", errtxt);
- if (QuickAbort)
- longjmp(TopFrame, 1);
- }
- /*
- ** MESSAGE -- print message (not necessarily an error)
- **
- ** Parameters:
- ** msg -- the message (printf fmt) -- it can begin with
- ** an SMTP reply code. If not, 050 is assumed.
- ** (others) -- printf arguments
- **
- ** Returns:
- ** none
- **
- ** Side Effects:
- ** none.
- */
- /*VARARGS1*/
- void
- #ifdef __STDC__
- message(const char *msg, ...)
- #else /* __STDC__ */
- message(msg, va_alist)
- const char *msg;
- va_dcl
- #endif /* __STDC__ */
- {
- char *errtxt;
- VA_LOCAL_DECL
- errno = 0;
- VA_START(msg);
- errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "050", (char *) NULL, 0, msg, ap);
- VA_END;
- putoutmsg(MsgBuf, FALSE, FALSE);
- /* save this message for mailq printing */
- switch (MsgBuf[0])
- {
- case '4':
- case '8':
- if (CurEnv->e_message != NULL)
- break;
- /* FALLTHROUGH */
- case '5':
- if (CurEnv->e_message != NULL)
- free(CurEnv->e_message);
- CurEnv->e_message = newstr(errtxt);
- break;
- }
- }
- /*
- ** NMESSAGE -- print message (not necessarily an error)
- **
- ** Just like "message" except it never puts the to... tag on.
- **
- ** Parameters:
- ** msg -- the message (printf fmt) -- if it begins
- ** with a three digit SMTP reply code, that is used,
- ** otherwise 050 is assumed.
- ** (others) -- printf arguments
- **
- ** Returns:
- ** none
- **
- ** Side Effects:
- ** none.
- */
- /*VARARGS1*/
- void
- #ifdef __STDC__
- nmessage(const char *msg, ...)
- #else /* __STDC__ */
- nmessage(msg, va_alist)
- const char *msg;
- va_dcl
- #endif /* __STDC__ */
- {
- char *errtxt;
- VA_LOCAL_DECL
- errno = 0;
- VA_START(msg);
- errtxt = fmtmsg(MsgBuf, (char *) NULL, "050",
- (char *) NULL, 0, msg, ap);
- VA_END;
- putoutmsg(MsgBuf, FALSE, FALSE);
- /* save this message for mailq printing */
- switch (MsgBuf[0])
- {
- case '4':
- case '8':
- if (CurEnv->e_message != NULL)
- break;
- /* FALLTHROUGH */
- case '5':
- if (CurEnv->e_message != NULL)
- free(CurEnv->e_message);
- CurEnv->e_message = newstr(errtxt);
- break;
- }
- }
- /*
- ** PUTOUTMSG -- output error message to transcript and channel
- **
- ** Parameters:
- ** msg -- message to output (in SMTP format).
- ** holdmsg -- if TRUE, don't output a copy of the message to
- ** our output channel.
- ** heldmsg -- if TRUE, this is a previously held message;
- ** don't log it to the transcript file.
- **
- ** Returns:
- ** none.
- **
- ** Side Effects:
- ** Outputs msg to the transcript.
- ** If appropriate, outputs it to the channel.
- ** Deletes SMTP reply code number as appropriate.
- */
- static void
- putoutmsg(msg, holdmsg, heldmsg)
- char *msg;
- bool holdmsg;
- bool heldmsg;
- {
- char *errtxt = msg;
- char msgcode = msg[0];
- /* display for debugging */
- if (tTd(54, 8))
- dprintf("--- %s%s%sn", msg, holdmsg ? " (hold)" : "",
- heldmsg ? " (held)" : "");
- /* map warnings to something SMTP can handle */
- if (msgcode == '6')
- msg[0] = '5';
- else if (msgcode == '8')
- msg[0] = '4';
- /* output to transcript if serious */
- if (!heldmsg && CurEnv != NULL && CurEnv->e_xfp != NULL &&
- strchr("45", msg[0]) != NULL)
- fprintf(CurEnv->e_xfp, "%sn", msg);
- if (LogLevel >= 15 && (OpMode == MD_SMTP || OpMode == MD_DAEMON))
- sm_syslog(LOG_INFO, CurEnv->e_id,
- "--> %s%s",
- msg, holdmsg ? " (held)" : "");
- if (msgcode == '8')
- msg[0] = '0';
- /* output to channel if appropriate */
- if (!Verbose && msg[0] == '0')
- return;
- if (holdmsg)
- {
- /* save for possible future display */
- msg[0] = msgcode;
- snprintf(HeldMessageBuf, sizeof HeldMessageBuf, "%s", msg);
- return;
- }
- (void) fflush(stdout);
- if (OutChannel == NULL)
- return;
- /* find actual text of error (after SMTP status codes) */
- if (ISSMTPREPLY(errtxt))
- {
- int l;
- errtxt += 4;
- l = isenhsc(errtxt, ' ');
- if (l <= 0)
- l = isenhsc(errtxt, ' ');
- if (l > 0)
- errtxt += l + 1;
- }
- /* if DisConnected, OutChannel now points to the transcript */
- if (!DisConnected &&
- (OpMode == MD_SMTP || OpMode == MD_DAEMON || OpMode == MD_ARPAFTP))
- fprintf(OutChannel, "%srn", msg);
- else
- fprintf(OutChannel, "%sn", errtxt);
- if (TrafficLogFile != NULL)
- fprintf(TrafficLogFile, "%05d >>> %sn", (int) getpid(),
- (OpMode == MD_SMTP || OpMode == MD_DAEMON) ? msg : errtxt);
- if (msg[3] == ' ')
- (void) fflush(OutChannel);
- if (!ferror(OutChannel) || DisConnected)
- return;
- /*
- ** Error on output -- if reporting lost channel, just ignore it.
- ** Also, ignore errors from QUIT response (221 message) -- some
- ** rude servers don't read result.
- */
- if (InChannel == NULL || feof(InChannel) || ferror(InChannel) ||
- strncmp(msg, "221", 3) == 0)
- return;
- /* can't call syserr, 'cause we are using MsgBuf */
- HoldErrs = TRUE;
- if (LogLevel > 0)
- sm_syslog(LOG_CRIT, CurEnv->e_id,
- "SYSERR: putoutmsg (%s): error on output channel sending "%s": %s",
- CurHostName == NULL ? "NO-HOST" : CurHostName,
- shortenstring(msg, MAXSHORTSTR), errstring(errno));
- }
- /*
- ** PUTERRMSG -- like putoutmsg, but does special processing for error messages
- **
- ** Parameters:
- ** msg -- the message to output.
- **
- ** Returns:
- ** none.
- **
- ** Side Effects:
- ** Sets the fatal error bit in the envelope as appropriate.
- */
- static void
- puterrmsg(msg)
- char *msg;
- {
- char msgcode = msg[0];
- /* output the message as usual */
- putoutmsg(msg, HoldErrs, FALSE);
- /* be careful about multiple error messages */
- if (OnlyOneError)
- HoldErrs = TRUE;
- /* signal the error */
- Errors++;
- if (CurEnv == NULL)
- return;
- if (msgcode == '6')
- {
- /* notify the postmaster */
- CurEnv->e_flags |= EF_PM_NOTIFY;
- }
- else if (msgcode == '5' && bitset(EF_GLOBALERRS, CurEnv->e_flags))
- {
- /* mark long-term fatal errors */
- CurEnv->e_flags |= EF_FATALERRS;
- }
- }
- /*
- ** ISENHSC -- check whether a string contains an enhanced status code
- **
- ** Parameters:
- ** s -- string with possible enhanced status code.
- ** delim -- delim for enhanced status code.
- **
- ** Returns:
- ** 0 -- no enhanced status code.
- ** >4 -- length of enhanced status code.
- **
- ** Side Effects:
- ** none.
- */
- int
- isenhsc(s, delim)
- const char *s;
- int delim;
- {
- int l, h;
- if (s == NULL)
- return 0;
- if (!((*s == '2' || *s == '4' || *s == '5') && s[1] == '.'))
- return 0;
- h = 0;
- l = 2;
- while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
- ++h;
- if (h == 0 || s[l + h] != '.')
- return 0;
- l += h + 1;
- h = 0;
- while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
- ++h;
- if (h == 0 || s[l + h] != delim)
- return 0;
- return l + h;
- }
- /*
- ** EXTENHSC -- check and extract an enhanced status code
- **
- ** Parameters:
- ** s -- string with possible enhanced status code.
- ** delim -- delim for enhanced status code.
- ** e -- pointer to storage for enhanced status code.
- ** must be != NULL and have space for at least
- ** 10 characters ([245].[0-9]{1,3}.[0-9]{1,3})
- **
- ** Returns:
- ** 0 -- no enhanced status code.
- ** >4 -- length of enhanced status code.
- **
- ** Side Effects:
- ** fills e with enhanced status code.
- */
- int
- extenhsc(s, delim, e)
- const char *s;
- int delim;
- char *e;
- {
- int l, h;
- if (s == NULL)
- return 0;
- if (!((*s == '2' || *s == '4' || *s == '5') && s[1] == '.'))
- return 0;
- h = 0;
- l = 2;
- e[0] = s[0];
- e[1] = '.';
- while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
- {
- e[l + h] = s[l + h];
- ++h;
- }
- if (h == 0 || s[l + h] != '.')
- return 0;
- e[l + h] = '.';
- l += h + 1;
- h = 0;
- while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h]))
- {
- e[l + h] = s[l + h];
- ++h;
- }
- if (h == 0 || s[l + h] != delim)
- return 0;
- e[l + h] = ' ';
- return l + h;
- }
- /*
- ** FMTMSG -- format a message into buffer.
- **
- ** Parameters:
- ** eb -- error buffer to get result -- MUST BE MsgBuf.
- ** to -- the recipient tag for this message.
- ** num -- default three digit SMTP reply code.
- ** enhsc -- enhanced status code.
- ** en -- the error number to display.
- ** fmt -- format of string.
- ** ap -- arguments for fmt.
- **
- ** Returns:
- ** pointer to error text beyond status codes.
- **
- ** Side Effects:
- ** none.
- */
- static char *
- fmtmsg(eb, to, num, enhsc, eno, fmt, ap)
- register char *eb;
- const char *to;
- const char *num;
- const char *enhsc;
- int eno;
- const char *fmt;
- va_list ap;
- {
- char del;
- int l;
- int spaceleft = sizeof MsgBuf;
- char *errtxt;
- /* output the reply code */
- if (ISSMTPCODE(fmt))
- {
- num = fmt;
- fmt += 4;
- }
- if (num[3] == '-')
- del = '-';
- else
- del = ' ';
- (void) snprintf(eb, spaceleft, "%3.3s%c", num, del);
- eb += 4;
- spaceleft -= 4;
- if ((l = isenhsc(fmt, ' ' )) > 0 && l < spaceleft - 4)
- {
- /* copy enh.status code including trailing blank */
- l++;
- (void) strlcpy(eb, fmt, l + 1);
- eb += l;
- spaceleft -= l;
- fmt += l;
- }
- else if ((l = isenhsc(enhsc, ' ')) > 0 && l < spaceleft - 4)
- {
- /* copy enh.status code */
- (void) strlcpy(eb, enhsc, l + 1);
- eb[l] = ' ';
- eb[++l] = ' ';
- eb += l;
- spaceleft -= l;
- }
- errtxt = eb;
- /* output the file name and line number */
- if (FileName != NULL)
- {
- (void) snprintf(eb, spaceleft, "%s: line %d: ",
- shortenstring(FileName, 83), LineNumber);
- eb += (l = strlen(eb));
- spaceleft -= l;
- }
- /* output the "to" person */
- if (to != NULL && to[0] != ' ' &&
- strncmp(num, "551", 3) != 0 &&
- strncmp(num, "251", 3) != 0)
- {
- (void) snprintf(eb, spaceleft, "%s... ",
- shortenstring(to, MAXSHORTSTR));
- spaceleft -= strlen(eb);
- while (*eb != ' ')
- *eb++ &= 0177;
- }
- /* output the message */
- (void) vsnprintf(eb, spaceleft, fmt, ap);
- spaceleft -= strlen(eb);
- while (*eb != ' ')
- *eb++ &= 0177;
- /* output the error code, if any */
- if (eno != 0)
- (void) snprintf(eb, spaceleft, ": %s", errstring(eno));
- return errtxt;
- }
- /*
- ** BUFFER_ERRORS -- arrange to buffer future error messages
- **
- ** Parameters:
- ** none
- **
- ** Returns:
- ** none.
- */
- void
- buffer_errors()
- {
- HeldMessageBuf[0] = ' ';
- HoldErrs = TRUE;
- }
- /*
- ** FLUSH_ERRORS -- flush the held error message buffer
- **
- ** Parameters:
- ** print -- if set, print the message, otherwise just
- ** delete it.
- **
- ** Returns:
- ** none.
- */
- void
- flush_errors(print)
- bool print;
- {
- if (print && HeldMessageBuf[0] != ' ')
- putoutmsg(HeldMessageBuf, FALSE, TRUE);
- HeldMessageBuf[0] = ' ';
- HoldErrs = FALSE;
- }
- /*
- ** ERRSTRING -- return string description of error code
- **
- ** Parameters:
- ** errnum -- the error number to translate
- **
- ** Returns:
- ** A string description of errnum.
- **
- ** Side Effects:
- ** none.
- */
- const char *
- errstring(errnum)
- int errnum;
- {
- char *dnsmsg;
- char *bp;
- static char buf[MAXLINE];
- #if !HASSTRERROR && !defined(ERRLIST_PREDEFINED)
- extern char *sys_errlist[];
- extern int sys_nerr;
- #endif /* !HASSTRERROR && !defined(ERRLIST_PREDEFINED) */
- /*
- ** Handle special network error codes.
- **
- ** These are 4.2/4.3bsd specific; they should be in daemon.c.
- */
- dnsmsg = NULL;
- switch (errnum)
- {
- #if defined(DAEMON) && defined(ETIMEDOUT)
- case ETIMEDOUT:
- case ECONNRESET:
- bp = buf;
- # if HASSTRERROR
- snprintf(bp, SPACELEFT(buf, bp), "%s", strerror(errnum));
- # else /* HASSTRERROR */
- if (errnum >= 0 && errnum < sys_nerr)
- snprintf(bp, SPACELEFT(buf, bp), "%s", sys_errlist[errnum]);
- else
- snprintf(bp, SPACELEFT(buf, bp), "Error %d", errnum);
- # endif /* HASSTRERROR */
- bp += strlen(bp);
- if (CurHostName != NULL)
- {
- if (errnum == ETIMEDOUT)
- {
- snprintf(bp, SPACELEFT(buf, bp), " with ");
- bp += strlen(bp);
- }
- else
- {
- bp = buf;
- snprintf(bp, SPACELEFT(buf, bp),
- "Connection reset by ");
- bp += strlen(bp);
- }
- snprintf(bp, SPACELEFT(buf, bp), "%s",
- shortenstring(CurHostName, MAXSHORTSTR));
- bp += strlen(buf);
- }
- if (SmtpPhase != NULL)
- {
- snprintf(bp, SPACELEFT(buf, bp), " during %s",
- SmtpPhase);
- }
- return buf;
- case EHOSTDOWN:
- if (CurHostName == NULL)
- break;
- (void) snprintf(buf, sizeof buf, "Host %s is down",
- shortenstring(CurHostName, MAXSHORTSTR));
- return buf;
- case ECONNREFUSED:
- if (CurHostName == NULL)
- break;
- (void) snprintf(buf, sizeof buf, "Connection refused by %s",
- shortenstring(CurHostName, MAXSHORTSTR));
- return buf;
- #endif /* defined(DAEMON) && defined(ETIMEDOUT) */
- #if NAMED_BIND
- case HOST_NOT_FOUND + E_DNSBASE:
- dnsmsg = "host not found";
- break;
- case TRY_AGAIN + E_DNSBASE:
- dnsmsg = "host name lookup failure";
- break;
- case NO_RECOVERY + E_DNSBASE:
- dnsmsg = "non-recoverable error";
- break;
- case NO_DATA + E_DNSBASE:
- dnsmsg = "no data known";
- break;
- #endif /* NAMED_BIND */
- case EPERM:
- /* SunOS gives "Not owner" -- this is the POSIX message */
- return "Operation not permitted";
- /*
- ** Error messages used internally in sendmail.
- */
- case E_SM_OPENTIMEOUT:
- return "Timeout on file open";
- case E_SM_NOSLINK:
- return "Symbolic links not allowed";
- case E_SM_NOHLINK:
- return "Hard links not allowed";
- case E_SM_REGONLY:
- return "Regular files only";
- case E_SM_ISEXEC:
- return "Executable files not allowed";
- case E_SM_WWDIR:
- return "World writable directory";
- case E_SM_GWDIR:
- return "Group writable directory";
- case E_SM_FILECHANGE:
- return "File changed after open";
- case E_SM_WWFILE:
- return "World writable file";
- case E_SM_GWFILE:
- return "Group writable file";
- case E_SM_RFILE:
- return "Group/other readable file";
- }
- if (dnsmsg != NULL)
- {
- bp = buf;
- bp += strlcpy(bp, "Name server: ", sizeof buf);
- if (CurHostName != NULL)
- {
- snprintf(bp, SPACELEFT(buf, bp), "%s: ",
- shortenstring(CurHostName, MAXSHORTSTR));
- bp += strlen(bp);
- }
- snprintf(bp, SPACELEFT(buf, bp), "%s", dnsmsg);
- return buf;
- }
- #ifdef LDAPMAP
- if (errnum >= E_LDAPBASE)
- return ldap_err2string(errnum - E_LDAPBASE);
- #endif /* LDAPMAP */
- #if HASSTRERROR
- return strerror(errnum);
- #else /* HASSTRERROR */
- if (errnum > 0 && errnum < sys_nerr)
- return sys_errlist[errnum];
- (void) snprintf(buf, sizeof buf, "Error %d", errnum);
- return buf;
- #endif /* HASSTRERROR */
- }