1 | /* |
---|
2 | * Copyright (c) 1998-2002 Sendmail, Inc. and its suppliers. |
---|
3 | * All rights reserved. |
---|
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. |
---|
7 | * |
---|
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. |
---|
11 | * |
---|
12 | */ |
---|
13 | |
---|
14 | #include <sendmail.h> |
---|
15 | |
---|
16 | SM_RCSID("@(#)$Id: err.c,v 1.1.1.1 2003-04-08 15:06:47 zacheiss Exp $") |
---|
17 | |
---|
18 | #if LDAPMAP |
---|
19 | # include <lber.h> |
---|
20 | # include <ldap.h> /* for LDAP error codes */ |
---|
21 | #endif /* LDAPMAP */ |
---|
22 | |
---|
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)); |
---|
27 | |
---|
28 | /* |
---|
29 | ** FATAL_ERROR -- handle a fatal exception |
---|
30 | ** |
---|
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. |
---|
35 | ** |
---|
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 "!". |
---|
42 | ** |
---|
43 | ** Parameters: |
---|
44 | ** exc -- exception which is terminating this process |
---|
45 | ** |
---|
46 | ** Returns: |
---|
47 | ** none |
---|
48 | */ |
---|
49 | |
---|
50 | void |
---|
51 | fatal_error(exc) |
---|
52 | SM_EXC_T *exc; |
---|
53 | { |
---|
54 | static char buf[256]; |
---|
55 | SM_FILE_T f; |
---|
56 | |
---|
57 | /* |
---|
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. |
---|
61 | */ |
---|
62 | |
---|
63 | sm_strio_init(&f, buf, sizeof(buf)); |
---|
64 | sm_exc_write(exc, &f); |
---|
65 | (void) sm_io_flush(&f, SM_TIME_DEFAULT); |
---|
66 | |
---|
67 | /* |
---|
68 | ** Terminate the process after logging an error and cleaning up. |
---|
69 | ** Problems: |
---|
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. |
---|
75 | */ |
---|
76 | |
---|
77 | errno = ENOMEM; |
---|
78 | syserr("!%s", buf); |
---|
79 | } |
---|
80 | |
---|
81 | /* |
---|
82 | ** SYSERR -- Print error message. |
---|
83 | ** |
---|
84 | ** Prints an error message via sm_io_printf to the diagnostic output. |
---|
85 | ** |
---|
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 |
---|
89 | ** be used lightly. |
---|
90 | ** |
---|
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. |
---|
95 | ** |
---|
96 | ** Parameters: |
---|
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 |
---|
101 | ** |
---|
102 | ** Returns: |
---|
103 | ** none |
---|
104 | ** Raises E:mta.quickabort if QuickAbort is set. |
---|
105 | ** |
---|
106 | ** Side Effects: |
---|
107 | ** increments Errors. |
---|
108 | ** sets ExitStat. |
---|
109 | */ |
---|
110 | |
---|
111 | char MsgBuf[BUFSIZ*2]; /* text of most recent message */ |
---|
112 | static char HeldMessageBuf[sizeof MsgBuf]; /* for held messages */ |
---|
113 | |
---|
114 | #if NAMED_BIND && !defined(NO_DATA) |
---|
115 | # define NO_DATA NO_ADDRESS |
---|
116 | #endif /* NAMED_BIND && !defined(NO_DATA) */ |
---|
117 | |
---|
118 | void |
---|
119 | /*VARARGS1*/ |
---|
120 | #ifdef __STDC__ |
---|
121 | syserr(const char *fmt, ...) |
---|
122 | #else /* __STDC__ */ |
---|
123 | syserr(fmt, va_alist) |
---|
124 | const char *fmt; |
---|
125 | va_dcl |
---|
126 | #endif /* __STDC__ */ |
---|
127 | { |
---|
128 | register char *p; |
---|
129 | int save_errno = errno; |
---|
130 | bool panic; |
---|
131 | bool exiting; |
---|
132 | char *user; |
---|
133 | char *enhsc; |
---|
134 | char *errtxt; |
---|
135 | struct passwd *pw; |
---|
136 | char ubuf[80]; |
---|
137 | SM_VA_LOCAL_DECL |
---|
138 | |
---|
139 | switch (*fmt) |
---|
140 | { |
---|
141 | case '!': |
---|
142 | ++fmt; |
---|
143 | panic = true; |
---|
144 | exiting = true; |
---|
145 | break; |
---|
146 | case '@': |
---|
147 | ++fmt; |
---|
148 | panic = false; |
---|
149 | exiting = true; |
---|
150 | break; |
---|
151 | default: |
---|
152 | panic = false; |
---|
153 | exiting = false; |
---|
154 | break; |
---|
155 | } |
---|
156 | |
---|
157 | /* format and output the error message */ |
---|
158 | if (exiting) |
---|
159 | { |
---|
160 | /* |
---|
161 | ** Since we are terminating the process, |
---|
162 | ** we are aborting the entire SMTP session, |
---|
163 | ** rather than just the current transaction. |
---|
164 | */ |
---|
165 | |
---|
166 | p = "421"; |
---|
167 | enhsc = "4.0.0"; |
---|
168 | } |
---|
169 | else if (save_errno == 0) |
---|
170 | { |
---|
171 | p = "554"; |
---|
172 | enhsc = "5.0.0"; |
---|
173 | } |
---|
174 | else |
---|
175 | { |
---|
176 | p = "451"; |
---|
177 | enhsc = "4.0.0"; |
---|
178 | } |
---|
179 | SM_VA_START(ap, fmt); |
---|
180 | errtxt = fmtmsg(MsgBuf, (char *) NULL, p, enhsc, save_errno, fmt, ap); |
---|
181 | SM_VA_END(ap); |
---|
182 | puterrmsg(MsgBuf); |
---|
183 | |
---|
184 | /* save this message for mailq printing */ |
---|
185 | if (!panic && CurEnv != NULL) |
---|
186 | { |
---|
187 | char *nmsg = sm_rpool_strdup_x(CurEnv->e_rpool, errtxt); |
---|
188 | |
---|
189 | if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL) |
---|
190 | sm_free(CurEnv->e_message); |
---|
191 | CurEnv->e_message = nmsg; |
---|
192 | } |
---|
193 | |
---|
194 | /* determine exit status if not already set */ |
---|
195 | if (ExitStat == EX_OK) |
---|
196 | { |
---|
197 | if (save_errno == 0) |
---|
198 | ExitStat = EX_SOFTWARE; |
---|
199 | else |
---|
200 | ExitStat = EX_OSERR; |
---|
201 | if (tTd(54, 1)) |
---|
202 | sm_dprintf("syserr: ExitStat = %d\n", ExitStat); |
---|
203 | } |
---|
204 | |
---|
205 | pw = sm_getpwuid(RealUid); |
---|
206 | if (pw != NULL) |
---|
207 | user = pw->pw_name; |
---|
208 | else |
---|
209 | { |
---|
210 | user = ubuf; |
---|
211 | (void) sm_snprintf(ubuf, sizeof ubuf, "UID%d", (int) RealUid); |
---|
212 | } |
---|
213 | |
---|
214 | if (LogLevel > 0) |
---|
215 | sm_syslog(panic ? LOG_ALERT : LOG_CRIT, |
---|
216 | CurEnv == NULL ? NOQID : CurEnv->e_id, |
---|
217 | "SYSERR(%s): %.900s", |
---|
218 | user, errtxt); |
---|
219 | switch (save_errno) |
---|
220 | { |
---|
221 | case EBADF: |
---|
222 | case ENFILE: |
---|
223 | case EMFILE: |
---|
224 | case ENOTTY: |
---|
225 | #ifdef EFBIG |
---|
226 | case EFBIG: |
---|
227 | #endif /* EFBIG */ |
---|
228 | #ifdef ESPIPE |
---|
229 | case ESPIPE: |
---|
230 | #endif /* ESPIPE */ |
---|
231 | #ifdef EPIPE |
---|
232 | case EPIPE: |
---|
233 | #endif /* EPIPE */ |
---|
234 | #ifdef ENOBUFS |
---|
235 | case ENOBUFS: |
---|
236 | #endif /* ENOBUFS */ |
---|
237 | #ifdef ESTALE |
---|
238 | case ESTALE: |
---|
239 | #endif /* ESTALE */ |
---|
240 | printopenfds(true); |
---|
241 | mci_dump_all(true); |
---|
242 | break; |
---|
243 | } |
---|
244 | if (panic) |
---|
245 | { |
---|
246 | #if XLA |
---|
247 | xla_all_end(); |
---|
248 | #endif /* XLA */ |
---|
249 | sync_queue_time(); |
---|
250 | if (tTd(0, 1)) |
---|
251 | abort(); |
---|
252 | exit(EX_OSERR); |
---|
253 | } |
---|
254 | errno = 0; |
---|
255 | if (QuickAbort) |
---|
256 | sm_exc_raisenew_x(&EtypeQuickAbort, 2); |
---|
257 | } |
---|
258 | /* |
---|
259 | ** USRERR -- Signal user error. |
---|
260 | ** |
---|
261 | ** This is much like syserr except it is for user errors. |
---|
262 | ** |
---|
263 | ** Parameters: |
---|
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 |
---|
267 | ** |
---|
268 | ** Returns: |
---|
269 | ** none |
---|
270 | ** Raises E:mta.quickabort if QuickAbort is set. |
---|
271 | ** |
---|
272 | ** Side Effects: |
---|
273 | ** increments Errors. |
---|
274 | */ |
---|
275 | |
---|
276 | /*VARARGS1*/ |
---|
277 | void |
---|
278 | #ifdef __STDC__ |
---|
279 | usrerr(const char *fmt, ...) |
---|
280 | #else /* __STDC__ */ |
---|
281 | usrerr(fmt, va_alist) |
---|
282 | const char *fmt; |
---|
283 | va_dcl |
---|
284 | #endif /* __STDC__ */ |
---|
285 | { |
---|
286 | char *enhsc; |
---|
287 | char *errtxt; |
---|
288 | SM_VA_LOCAL_DECL |
---|
289 | |
---|
290 | if (fmt[0] == '5' || fmt[0] == '6') |
---|
291 | enhsc = "5.0.0"; |
---|
292 | else if (fmt[0] == '4' || fmt[0] == '8') |
---|
293 | enhsc = "4.0.0"; |
---|
294 | else if (fmt[0] == '2') |
---|
295 | enhsc = "2.0.0"; |
---|
296 | else |
---|
297 | enhsc = NULL; |
---|
298 | SM_VA_START(ap, fmt); |
---|
299 | errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "550", enhsc, 0, fmt, ap); |
---|
300 | SM_VA_END(ap); |
---|
301 | |
---|
302 | if (SuprErrs) |
---|
303 | return; |
---|
304 | |
---|
305 | /* save this message for mailq printing */ |
---|
306 | switch (MsgBuf[0]) |
---|
307 | { |
---|
308 | case '4': |
---|
309 | case '8': |
---|
310 | if (CurEnv->e_message != NULL) |
---|
311 | break; |
---|
312 | |
---|
313 | /* FALLTHROUGH */ |
---|
314 | |
---|
315 | case '5': |
---|
316 | case '6': |
---|
317 | if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL) |
---|
318 | sm_free(CurEnv->e_message); |
---|
319 | if (MsgBuf[0] == '6') |
---|
320 | { |
---|
321 | char buf[MAXLINE]; |
---|
322 | |
---|
323 | (void) sm_snprintf(buf, sizeof buf, |
---|
324 | "Postmaster warning: %.*s", |
---|
325 | (int) sizeof buf - 22, errtxt); |
---|
326 | CurEnv->e_message = |
---|
327 | sm_rpool_strdup_x(CurEnv->e_rpool, buf); |
---|
328 | } |
---|
329 | else |
---|
330 | { |
---|
331 | CurEnv->e_message = |
---|
332 | sm_rpool_strdup_x(CurEnv->e_rpool, errtxt); |
---|
333 | } |
---|
334 | break; |
---|
335 | } |
---|
336 | |
---|
337 | puterrmsg(MsgBuf); |
---|
338 | if (LogLevel > 3 && LogUsrErrs) |
---|
339 | sm_syslog(LOG_NOTICE, CurEnv->e_id, "%.900s", errtxt); |
---|
340 | if (QuickAbort) |
---|
341 | sm_exc_raisenew_x(&EtypeQuickAbort, 1); |
---|
342 | } |
---|
343 | /* |
---|
344 | ** USRERRENH -- Signal user error. |
---|
345 | ** |
---|
346 | ** Same as usrerr but with enhanced status code. |
---|
347 | ** |
---|
348 | ** Parameters: |
---|
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 |
---|
353 | ** |
---|
354 | ** Returns: |
---|
355 | ** none |
---|
356 | ** Raises E:mta.quickabort if QuickAbort is set. |
---|
357 | ** |
---|
358 | ** Side Effects: |
---|
359 | ** increments Errors. |
---|
360 | */ |
---|
361 | |
---|
362 | /*VARARGS1*/ |
---|
363 | void |
---|
364 | #ifdef __STDC__ |
---|
365 | usrerrenh(char *enhsc, const char *fmt, ...) |
---|
366 | #else /* __STDC__ */ |
---|
367 | usrerrenh(enhsc, fmt, va_alist) |
---|
368 | char *enhsc; |
---|
369 | const char *fmt; |
---|
370 | va_dcl |
---|
371 | #endif /* __STDC__ */ |
---|
372 | { |
---|
373 | char *errtxt; |
---|
374 | SM_VA_LOCAL_DECL |
---|
375 | |
---|
376 | if (enhsc == NULL || *enhsc == '\0') |
---|
377 | { |
---|
378 | if (fmt[0] == '5' || fmt[0] == '6') |
---|
379 | enhsc = "5.0.0"; |
---|
380 | else if (fmt[0] == '4' || fmt[0] == '8') |
---|
381 | enhsc = "4.0.0"; |
---|
382 | else if (fmt[0] == '2') |
---|
383 | enhsc = "2.0.0"; |
---|
384 | } |
---|
385 | SM_VA_START(ap, fmt); |
---|
386 | errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "550", enhsc, 0, fmt, ap); |
---|
387 | SM_VA_END(ap); |
---|
388 | |
---|
389 | if (SuprErrs) |
---|
390 | return; |
---|
391 | |
---|
392 | /* save this message for mailq printing */ |
---|
393 | switch (MsgBuf[0]) |
---|
394 | { |
---|
395 | case '4': |
---|
396 | case '8': |
---|
397 | if (CurEnv->e_message != NULL) |
---|
398 | break; |
---|
399 | |
---|
400 | /* FALLTHROUGH */ |
---|
401 | |
---|
402 | case '5': |
---|
403 | case '6': |
---|
404 | if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL) |
---|
405 | sm_free(CurEnv->e_message); |
---|
406 | if (MsgBuf[0] == '6') |
---|
407 | { |
---|
408 | char buf[MAXLINE]; |
---|
409 | |
---|
410 | (void) sm_snprintf(buf, sizeof buf, |
---|
411 | "Postmaster warning: %.*s", |
---|
412 | (int) sizeof buf - 22, errtxt); |
---|
413 | CurEnv->e_message = |
---|
414 | sm_rpool_strdup_x(CurEnv->e_rpool, buf); |
---|
415 | } |
---|
416 | else |
---|
417 | { |
---|
418 | CurEnv->e_message = |
---|
419 | sm_rpool_strdup_x(CurEnv->e_rpool, errtxt); |
---|
420 | } |
---|
421 | break; |
---|
422 | } |
---|
423 | |
---|
424 | puterrmsg(MsgBuf); |
---|
425 | if (LogLevel > 3 && LogUsrErrs) |
---|
426 | sm_syslog(LOG_NOTICE, CurEnv->e_id, "%.900s", errtxt); |
---|
427 | if (QuickAbort) |
---|
428 | sm_exc_raisenew_x(&EtypeQuickAbort, 1); |
---|
429 | } |
---|
430 | /* |
---|
431 | ** MESSAGE -- print message (not necessarily an error) |
---|
432 | ** |
---|
433 | ** Parameters: |
---|
434 | ** msg -- the message (sm_io_printf fmt) -- it can begin with |
---|
435 | ** an SMTP reply code. If not, 050 is assumed. |
---|
436 | ** (others) -- sm_io_printf arguments |
---|
437 | ** |
---|
438 | ** Returns: |
---|
439 | ** none |
---|
440 | ** |
---|
441 | ** Side Effects: |
---|
442 | ** none. |
---|
443 | */ |
---|
444 | |
---|
445 | /*VARARGS1*/ |
---|
446 | void |
---|
447 | #ifdef __STDC__ |
---|
448 | message(const char *msg, ...) |
---|
449 | #else /* __STDC__ */ |
---|
450 | message(msg, va_alist) |
---|
451 | const char *msg; |
---|
452 | va_dcl |
---|
453 | #endif /* __STDC__ */ |
---|
454 | { |
---|
455 | char *errtxt; |
---|
456 | SM_VA_LOCAL_DECL |
---|
457 | |
---|
458 | errno = 0; |
---|
459 | SM_VA_START(ap, msg); |
---|
460 | errtxt = fmtmsg(MsgBuf, CurEnv->e_to, "050", (char *) NULL, 0, msg, ap); |
---|
461 | SM_VA_END(ap); |
---|
462 | putoutmsg(MsgBuf, false, false); |
---|
463 | |
---|
464 | /* save this message for mailq printing */ |
---|
465 | switch (MsgBuf[0]) |
---|
466 | { |
---|
467 | case '4': |
---|
468 | case '8': |
---|
469 | if (CurEnv->e_message != NULL) |
---|
470 | break; |
---|
471 | /* FALLTHROUGH */ |
---|
472 | |
---|
473 | case '5': |
---|
474 | if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL) |
---|
475 | sm_free(CurEnv->e_message); |
---|
476 | CurEnv->e_message = |
---|
477 | sm_rpool_strdup_x(CurEnv->e_rpool, errtxt); |
---|
478 | break; |
---|
479 | } |
---|
480 | } |
---|
481 | /* |
---|
482 | ** NMESSAGE -- print message (not necessarily an error) |
---|
483 | ** |
---|
484 | ** Just like "message" except it never puts the to... tag on. |
---|
485 | ** |
---|
486 | ** Parameters: |
---|
487 | ** msg -- the message (sm_io_printf fmt) -- if it begins |
---|
488 | ** with a three digit SMTP reply code, that is used, |
---|
489 | ** otherwise 050 is assumed. |
---|
490 | ** (others) -- sm_io_printf arguments |
---|
491 | ** |
---|
492 | ** Returns: |
---|
493 | ** none |
---|
494 | ** |
---|
495 | ** Side Effects: |
---|
496 | ** none. |
---|
497 | */ |
---|
498 | |
---|
499 | /*VARARGS1*/ |
---|
500 | void |
---|
501 | #ifdef __STDC__ |
---|
502 | nmessage(const char *msg, ...) |
---|
503 | #else /* __STDC__ */ |
---|
504 | nmessage(msg, va_alist) |
---|
505 | const char *msg; |
---|
506 | va_dcl |
---|
507 | #endif /* __STDC__ */ |
---|
508 | { |
---|
509 | char *errtxt; |
---|
510 | SM_VA_LOCAL_DECL |
---|
511 | |
---|
512 | errno = 0; |
---|
513 | SM_VA_START(ap, msg); |
---|
514 | errtxt = fmtmsg(MsgBuf, (char *) NULL, "050", |
---|
515 | (char *) NULL, 0, msg, ap); |
---|
516 | SM_VA_END(ap); |
---|
517 | putoutmsg(MsgBuf, false, false); |
---|
518 | |
---|
519 | /* save this message for mailq printing */ |
---|
520 | switch (MsgBuf[0]) |
---|
521 | { |
---|
522 | case '4': |
---|
523 | case '8': |
---|
524 | if (CurEnv->e_message != NULL) |
---|
525 | break; |
---|
526 | /* FALLTHROUGH */ |
---|
527 | |
---|
528 | case '5': |
---|
529 | if (CurEnv->e_rpool == NULL && CurEnv->e_message != NULL) |
---|
530 | sm_free(CurEnv->e_message); |
---|
531 | CurEnv->e_message = |
---|
532 | sm_rpool_strdup_x(CurEnv->e_rpool, errtxt); |
---|
533 | break; |
---|
534 | } |
---|
535 | } |
---|
536 | /* |
---|
537 | ** PUTOUTMSG -- output error message to transcript and channel |
---|
538 | ** |
---|
539 | ** Parameters: |
---|
540 | ** msg -- message to output (in SMTP format). |
---|
541 | ** holdmsg -- if true, don't output a copy of the message to |
---|
542 | ** our output channel. |
---|
543 | ** heldmsg -- if true, this is a previously held message; |
---|
544 | ** don't log it to the transcript file. |
---|
545 | ** |
---|
546 | ** Returns: |
---|
547 | ** none. |
---|
548 | ** |
---|
549 | ** Side Effects: |
---|
550 | ** Outputs msg to the transcript. |
---|
551 | ** If appropriate, outputs it to the channel. |
---|
552 | ** Deletes SMTP reply code number as appropriate. |
---|
553 | */ |
---|
554 | |
---|
555 | static void |
---|
556 | putoutmsg(msg, holdmsg, heldmsg) |
---|
557 | char *msg; |
---|
558 | bool holdmsg; |
---|
559 | bool heldmsg; |
---|
560 | { |
---|
561 | char *errtxt = msg; |
---|
562 | char msgcode = msg[0]; |
---|
563 | |
---|
564 | /* display for debugging */ |
---|
565 | if (tTd(54, 8)) |
---|
566 | sm_dprintf("--- %s%s%s\n", msg, holdmsg ? " (hold)" : "", |
---|
567 | heldmsg ? " (held)" : ""); |
---|
568 | |
---|
569 | /* map warnings to something SMTP can handle */ |
---|
570 | if (msgcode == '6') |
---|
571 | msg[0] = '5'; |
---|
572 | else if (msgcode == '8') |
---|
573 | msg[0] = '4'; |
---|
574 | |
---|
575 | /* output to transcript if serious */ |
---|
576 | if (!heldmsg && CurEnv != NULL && CurEnv->e_xfp != NULL && |
---|
577 | strchr("45", msg[0]) != NULL) |
---|
578 | (void) sm_io_fprintf(CurEnv->e_xfp, SM_TIME_DEFAULT, "%s\n", |
---|
579 | msg); |
---|
580 | |
---|
581 | if (LogLevel > 14 && (OpMode == MD_SMTP || OpMode == MD_DAEMON)) |
---|
582 | sm_syslog(LOG_INFO, CurEnv->e_id, |
---|
583 | "--- %s%s%s", msg, holdmsg ? " (hold)" : "", |
---|
584 | heldmsg ? " (held)" : ""); |
---|
585 | |
---|
586 | if (msgcode == '8') |
---|
587 | msg[0] = '0'; |
---|
588 | |
---|
589 | /* output to channel if appropriate */ |
---|
590 | if (!Verbose && msg[0] == '0') |
---|
591 | return; |
---|
592 | if (holdmsg) |
---|
593 | { |
---|
594 | /* save for possible future display */ |
---|
595 | msg[0] = msgcode; |
---|
596 | if (HeldMessageBuf[0] == '5' && msgcode == '4') |
---|
597 | return; |
---|
598 | (void) sm_strlcpy(HeldMessageBuf, msg, sizeof HeldMessageBuf); |
---|
599 | return; |
---|
600 | } |
---|
601 | |
---|
602 | (void) sm_io_flush(smioout, SM_TIME_DEFAULT); |
---|
603 | |
---|
604 | if (OutChannel == NULL) |
---|
605 | return; |
---|
606 | |
---|
607 | /* find actual text of error (after SMTP status codes) */ |
---|
608 | if (ISSMTPREPLY(errtxt)) |
---|
609 | { |
---|
610 | int l; |
---|
611 | |
---|
612 | errtxt += 4; |
---|
613 | l = isenhsc(errtxt, ' '); |
---|
614 | if (l <= 0) |
---|
615 | l = isenhsc(errtxt, '\0'); |
---|
616 | if (l > 0) |
---|
617 | errtxt += l + 1; |
---|
618 | } |
---|
619 | |
---|
620 | /* if DisConnected, OutChannel now points to the transcript */ |
---|
621 | if (!DisConnected && |
---|
622 | (OpMode == MD_SMTP || OpMode == MD_DAEMON || OpMode == MD_ARPAFTP)) |
---|
623 | (void) sm_io_fprintf(OutChannel, SM_TIME_DEFAULT, "%s\r\n", |
---|
624 | msg); |
---|
625 | else |
---|
626 | (void) sm_io_fprintf(OutChannel, SM_TIME_DEFAULT, "%s\n", |
---|
627 | errtxt); |
---|
628 | if (TrafficLogFile != NULL) |
---|
629 | (void) sm_io_fprintf(TrafficLogFile, SM_TIME_DEFAULT, |
---|
630 | "%05d >>> %s\n", (int) CurrentPid, |
---|
631 | (OpMode == MD_SMTP || OpMode == MD_DAEMON) |
---|
632 | ? msg : errtxt); |
---|
633 | #if !PIPELINING |
---|
634 | /* XXX can't flush here for SMTP pipelining */ |
---|
635 | if (msg[3] == ' ') |
---|
636 | (void) sm_io_flush(OutChannel, SM_TIME_DEFAULT); |
---|
637 | if (!sm_io_error(OutChannel) || DisConnected) |
---|
638 | return; |
---|
639 | |
---|
640 | /* |
---|
641 | ** Error on output -- if reporting lost channel, just ignore it. |
---|
642 | ** Also, ignore errors from QUIT response (221 message) -- some |
---|
643 | ** rude servers don't read result. |
---|
644 | */ |
---|
645 | |
---|
646 | if (InChannel == NULL || sm_io_eof(InChannel) || |
---|
647 | sm_io_error(InChannel) || strncmp(msg, "221", 3) == 0) |
---|
648 | return; |
---|
649 | |
---|
650 | /* can't call syserr, 'cause we are using MsgBuf */ |
---|
651 | HoldErrs = true; |
---|
652 | if (LogLevel > 0) |
---|
653 | sm_syslog(LOG_CRIT, CurEnv->e_id, |
---|
654 | "SYSERR: putoutmsg (%s): error on output channel sending \"%s\": %s", |
---|
655 | CURHOSTNAME, |
---|
656 | shortenstring(msg, MAXSHORTSTR), sm_errstring(errno)); |
---|
657 | #endif /* !PIPELINING */ |
---|
658 | } |
---|
659 | /* |
---|
660 | ** PUTERRMSG -- like putoutmsg, but does special processing for error messages |
---|
661 | ** |
---|
662 | ** Parameters: |
---|
663 | ** msg -- the message to output. |
---|
664 | ** |
---|
665 | ** Returns: |
---|
666 | ** none. |
---|
667 | ** |
---|
668 | ** Side Effects: |
---|
669 | ** Sets the fatal error bit in the envelope as appropriate. |
---|
670 | */ |
---|
671 | |
---|
672 | static void |
---|
673 | puterrmsg(msg) |
---|
674 | char *msg; |
---|
675 | { |
---|
676 | char msgcode = msg[0]; |
---|
677 | |
---|
678 | /* output the message as usual */ |
---|
679 | putoutmsg(msg, HoldErrs, false); |
---|
680 | |
---|
681 | /* be careful about multiple error messages */ |
---|
682 | if (OnlyOneError) |
---|
683 | HoldErrs = true; |
---|
684 | |
---|
685 | /* signal the error */ |
---|
686 | Errors++; |
---|
687 | |
---|
688 | if (CurEnv == NULL) |
---|
689 | return; |
---|
690 | |
---|
691 | if (msgcode == '6') |
---|
692 | { |
---|
693 | /* notify the postmaster */ |
---|
694 | CurEnv->e_flags |= EF_PM_NOTIFY; |
---|
695 | } |
---|
696 | else if (msgcode == '5' && bitset(EF_GLOBALERRS, CurEnv->e_flags)) |
---|
697 | { |
---|
698 | /* mark long-term fatal errors */ |
---|
699 | CurEnv->e_flags |= EF_FATALERRS; |
---|
700 | } |
---|
701 | } |
---|
702 | /* |
---|
703 | ** ISENHSC -- check whether a string contains an enhanced status code |
---|
704 | ** |
---|
705 | ** Parameters: |
---|
706 | ** s -- string with possible enhanced status code. |
---|
707 | ** delim -- delim for enhanced status code. |
---|
708 | ** |
---|
709 | ** Returns: |
---|
710 | ** 0 -- no enhanced status code. |
---|
711 | ** >4 -- length of enhanced status code. |
---|
712 | ** |
---|
713 | ** Side Effects: |
---|
714 | ** none. |
---|
715 | */ |
---|
716 | int |
---|
717 | isenhsc(s, delim) |
---|
718 | const char *s; |
---|
719 | int delim; |
---|
720 | { |
---|
721 | int l, h; |
---|
722 | |
---|
723 | if (s == NULL) |
---|
724 | return 0; |
---|
725 | if (!((*s == '2' || *s == '4' || *s == '5') && s[1] == '.')) |
---|
726 | return 0; |
---|
727 | h = 0; |
---|
728 | l = 2; |
---|
729 | while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h])) |
---|
730 | ++h; |
---|
731 | if (h == 0 || s[l + h] != '.') |
---|
732 | return 0; |
---|
733 | l += h + 1; |
---|
734 | h = 0; |
---|
735 | while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h])) |
---|
736 | ++h; |
---|
737 | if (h == 0 || s[l + h] != delim) |
---|
738 | return 0; |
---|
739 | return l + h; |
---|
740 | } |
---|
741 | /* |
---|
742 | ** EXTENHSC -- check and extract an enhanced status code |
---|
743 | ** |
---|
744 | ** Parameters: |
---|
745 | ** s -- string with possible enhanced status code. |
---|
746 | ** delim -- delim for enhanced status code. |
---|
747 | ** e -- pointer to storage for enhanced status code. |
---|
748 | ** must be != NULL and have space for at least |
---|
749 | ** 10 characters ([245].[0-9]{1,3}.[0-9]{1,3}) |
---|
750 | ** |
---|
751 | ** Returns: |
---|
752 | ** 0 -- no enhanced status code. |
---|
753 | ** >4 -- length of enhanced status code. |
---|
754 | ** |
---|
755 | ** Side Effects: |
---|
756 | ** fills e with enhanced status code. |
---|
757 | */ |
---|
758 | |
---|
759 | int |
---|
760 | extenhsc(s, delim, e) |
---|
761 | const char *s; |
---|
762 | int delim; |
---|
763 | char *e; |
---|
764 | { |
---|
765 | int l, h; |
---|
766 | |
---|
767 | if (s == NULL) |
---|
768 | return 0; |
---|
769 | if (!((*s == '2' || *s == '4' || *s == '5') && s[1] == '.')) |
---|
770 | return 0; |
---|
771 | h = 0; |
---|
772 | l = 2; |
---|
773 | e[0] = s[0]; |
---|
774 | e[1] = '.'; |
---|
775 | while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h])) |
---|
776 | { |
---|
777 | e[l + h] = s[l + h]; |
---|
778 | ++h; |
---|
779 | } |
---|
780 | if (h == 0 || s[l + h] != '.') |
---|
781 | return 0; |
---|
782 | e[l + h] = '.'; |
---|
783 | l += h + 1; |
---|
784 | h = 0; |
---|
785 | while (h < 3 && isascii(s[l + h]) && isdigit(s[l + h])) |
---|
786 | { |
---|
787 | e[l + h] = s[l + h]; |
---|
788 | ++h; |
---|
789 | } |
---|
790 | if (h == 0 || s[l + h] != delim) |
---|
791 | return 0; |
---|
792 | e[l + h] = '\0'; |
---|
793 | return l + h; |
---|
794 | } |
---|
795 | /* |
---|
796 | ** FMTMSG -- format a message into buffer. |
---|
797 | ** |
---|
798 | ** Parameters: |
---|
799 | ** eb -- error buffer to get result -- MUST BE MsgBuf. |
---|
800 | ** to -- the recipient tag for this message. |
---|
801 | ** num -- default three digit SMTP reply code. |
---|
802 | ** enhsc -- enhanced status code. |
---|
803 | ** en -- the error number to display. |
---|
804 | ** fmt -- format of string. |
---|
805 | ** ap -- arguments for fmt. |
---|
806 | ** |
---|
807 | ** Returns: |
---|
808 | ** pointer to error text beyond status codes. |
---|
809 | ** |
---|
810 | ** Side Effects: |
---|
811 | ** none. |
---|
812 | */ |
---|
813 | |
---|
814 | static char * |
---|
815 | fmtmsg(eb, to, num, enhsc, eno, fmt, ap) |
---|
816 | register char *eb; |
---|
817 | const char *to; |
---|
818 | const char *num; |
---|
819 | const char *enhsc; |
---|
820 | int eno; |
---|
821 | const char *fmt; |
---|
822 | SM_VA_LOCAL_DECL |
---|
823 | { |
---|
824 | char del; |
---|
825 | int l; |
---|
826 | int spaceleft = sizeof MsgBuf; |
---|
827 | char *errtxt; |
---|
828 | |
---|
829 | /* output the reply code */ |
---|
830 | if (ISSMTPCODE(fmt)) |
---|
831 | { |
---|
832 | num = fmt; |
---|
833 | fmt += 4; |
---|
834 | } |
---|
835 | if (num[3] == '-') |
---|
836 | del = '-'; |
---|
837 | else |
---|
838 | del = ' '; |
---|
839 | #if _FFR_SOFT_BOUNCE |
---|
840 | if (SoftBounce && num[0] == '5') |
---|
841 | { |
---|
842 | /* replace 5 by 4 */ |
---|
843 | (void) sm_snprintf(eb, spaceleft, "4%2.2s%c", num + 1, del); |
---|
844 | } |
---|
845 | else |
---|
846 | #endif /* _FFR_SOFT_BOUNCE */ |
---|
847 | (void) sm_snprintf(eb, spaceleft, "%3.3s%c", num, del); |
---|
848 | eb += 4; |
---|
849 | spaceleft -= 4; |
---|
850 | |
---|
851 | if ((l = isenhsc(fmt, ' ' )) > 0 && l < spaceleft - 4) |
---|
852 | { |
---|
853 | /* copy enh.status code including trailing blank */ |
---|
854 | l++; |
---|
855 | (void) sm_strlcpy(eb, fmt, l + 1); |
---|
856 | eb += l; |
---|
857 | spaceleft -= l; |
---|
858 | fmt += l; |
---|
859 | } |
---|
860 | else if ((l = isenhsc(enhsc, '\0')) > 0 && l < spaceleft - 4) |
---|
861 | { |
---|
862 | /* copy enh.status code */ |
---|
863 | (void) sm_strlcpy(eb, enhsc, l + 1); |
---|
864 | eb[l] = ' '; |
---|
865 | eb[++l] = '\0'; |
---|
866 | eb += l; |
---|
867 | spaceleft -= l; |
---|
868 | } |
---|
869 | #if _FFR_SOFT_BOUNCE |
---|
870 | if (SoftBounce && eb[-l] == '5') |
---|
871 | { |
---|
872 | /* replace 5 by 4 */ |
---|
873 | eb[-l] = '4'; |
---|
874 | } |
---|
875 | #endif /* _FFR_SOFT_BOUNCE */ |
---|
876 | errtxt = eb; |
---|
877 | |
---|
878 | /* output the file name and line number */ |
---|
879 | if (FileName != NULL) |
---|
880 | { |
---|
881 | (void) sm_snprintf(eb, spaceleft, "%s: line %d: ", |
---|
882 | shortenstring(FileName, 83), LineNumber); |
---|
883 | eb += (l = strlen(eb)); |
---|
884 | spaceleft -= l; |
---|
885 | } |
---|
886 | |
---|
887 | /* |
---|
888 | ** output the "to" address only if it is defined and one of the |
---|
889 | ** following codes is used: |
---|
890 | ** 050 internal notices, e.g., alias expansion |
---|
891 | ** 250 Ok |
---|
892 | ** 252 Cannot VRFY user, but will accept message and attempt delivery |
---|
893 | ** 450 Requested mail action not taken: mailbox unavailable |
---|
894 | ** 550 Requested action not taken: mailbox unavailable |
---|
895 | ** 553 Requested action not taken: mailbox name not allowed |
---|
896 | ** |
---|
897 | ** Notice: this still isn't "the right thing", this code shouldn't |
---|
898 | ** (indirectly) depend on CurEnv->e_to. |
---|
899 | */ |
---|
900 | |
---|
901 | if (to != NULL && to[0] != '\0' && |
---|
902 | (strncmp(num, "050", 3) == 0 || |
---|
903 | strncmp(num, "250", 3) == 0 || |
---|
904 | strncmp(num, "252", 3) == 0 || |
---|
905 | strncmp(num, "450", 3) == 0 || |
---|
906 | strncmp(num, "550", 3) == 0 || |
---|
907 | strncmp(num, "553", 3) == 0)) |
---|
908 | { |
---|
909 | (void) sm_strlcpyn(eb, spaceleft, 2, |
---|
910 | shortenstring(to, MAXSHORTSTR), "... "); |
---|
911 | spaceleft -= strlen(eb); |
---|
912 | while (*eb != '\0') |
---|
913 | *eb++ &= 0177; |
---|
914 | } |
---|
915 | |
---|
916 | /* output the message */ |
---|
917 | (void) sm_vsnprintf(eb, spaceleft, fmt, ap); |
---|
918 | spaceleft -= strlen(eb); |
---|
919 | while (*eb != '\0') |
---|
920 | *eb++ &= 0177; |
---|
921 | |
---|
922 | /* output the error code, if any */ |
---|
923 | if (eno != 0) |
---|
924 | (void) sm_strlcpyn(eb, spaceleft, 2, ": ", sm_errstring(eno)); |
---|
925 | |
---|
926 | return errtxt; |
---|
927 | } |
---|
928 | /* |
---|
929 | ** BUFFER_ERRORS -- arrange to buffer future error messages |
---|
930 | ** |
---|
931 | ** Parameters: |
---|
932 | ** none |
---|
933 | ** |
---|
934 | ** Returns: |
---|
935 | ** none. |
---|
936 | */ |
---|
937 | |
---|
938 | void |
---|
939 | buffer_errors() |
---|
940 | { |
---|
941 | HeldMessageBuf[0] = '\0'; |
---|
942 | HoldErrs = true; |
---|
943 | } |
---|
944 | /* |
---|
945 | ** FLUSH_ERRORS -- flush the held error message buffer |
---|
946 | ** |
---|
947 | ** Parameters: |
---|
948 | ** print -- if set, print the message, otherwise just |
---|
949 | ** delete it. |
---|
950 | ** |
---|
951 | ** Returns: |
---|
952 | ** none. |
---|
953 | */ |
---|
954 | |
---|
955 | void |
---|
956 | flush_errors(print) |
---|
957 | bool print; |
---|
958 | { |
---|
959 | if (print && HeldMessageBuf[0] != '\0') |
---|
960 | putoutmsg(HeldMessageBuf, false, true); |
---|
961 | HeldMessageBuf[0] = '\0'; |
---|
962 | HoldErrs = false; |
---|
963 | } |
---|
964 | /* |
---|
965 | ** SM_ERRSTRING -- return string description of error code |
---|
966 | ** |
---|
967 | ** Parameters: |
---|
968 | ** errnum -- the error number to translate |
---|
969 | ** |
---|
970 | ** Returns: |
---|
971 | ** A string description of errnum. |
---|
972 | ** |
---|
973 | ** Side Effects: |
---|
974 | ** none. |
---|
975 | */ |
---|
976 | |
---|
977 | const char * |
---|
978 | sm_errstring(errnum) |
---|
979 | int errnum; |
---|
980 | { |
---|
981 | char *dnsmsg; |
---|
982 | char *bp; |
---|
983 | static char buf[MAXLINE]; |
---|
984 | #if HASSTRERROR |
---|
985 | char *err; |
---|
986 | char errbuf[30]; |
---|
987 | #endif /* HASSTRERROR */ |
---|
988 | #if !HASSTRERROR && !defined(ERRLIST_PREDEFINED) |
---|
989 | extern char *sys_errlist[]; |
---|
990 | extern int sys_nerr; |
---|
991 | #endif /* !HASSTRERROR && !defined(ERRLIST_PREDEFINED) */ |
---|
992 | |
---|
993 | /* |
---|
994 | ** Handle special network error codes. |
---|
995 | ** |
---|
996 | ** These are 4.2/4.3bsd specific; they should be in daemon.c. |
---|
997 | */ |
---|
998 | |
---|
999 | dnsmsg = NULL; |
---|
1000 | switch (errnum) |
---|
1001 | { |
---|
1002 | case ETIMEDOUT: |
---|
1003 | case ECONNRESET: |
---|
1004 | bp = buf; |
---|
1005 | #if HASSTRERROR |
---|
1006 | err = strerror(errnum); |
---|
1007 | if (err == NULL) |
---|
1008 | { |
---|
1009 | (void) sm_snprintf(errbuf, sizeof errbuf, |
---|
1010 | "Error %d", errnum); |
---|
1011 | err = errbuf; |
---|
1012 | } |
---|
1013 | (void) sm_strlcpy(bp, err, SPACELEFT(buf, bp)); |
---|
1014 | #else /* HASSTRERROR */ |
---|
1015 | if (errnum >= 0 && errnum < sys_nerr) |
---|
1016 | (void) sm_strlcpy(bp, sys_errlist[errnum], |
---|
1017 | SPACELEFT(buf, bp)); |
---|
1018 | else |
---|
1019 | (void) sm_snprintf(bp, SPACELEFT(buf, bp), |
---|
1020 | "Error %d", errnum); |
---|
1021 | #endif /* HASSTRERROR */ |
---|
1022 | bp += strlen(bp); |
---|
1023 | if (CurHostName != NULL) |
---|
1024 | { |
---|
1025 | if (errnum == ETIMEDOUT) |
---|
1026 | { |
---|
1027 | (void) sm_snprintf(bp, SPACELEFT(buf, bp), |
---|
1028 | " with "); |
---|
1029 | bp += strlen(bp); |
---|
1030 | } |
---|
1031 | else |
---|
1032 | { |
---|
1033 | bp = buf; |
---|
1034 | (void) sm_snprintf(bp, SPACELEFT(buf, bp), |
---|
1035 | "Connection reset by "); |
---|
1036 | bp += strlen(bp); |
---|
1037 | } |
---|
1038 | (void) sm_strlcpy(bp, |
---|
1039 | shortenstring(CurHostName, MAXSHORTSTR), |
---|
1040 | SPACELEFT(buf, bp)); |
---|
1041 | bp += strlen(buf); |
---|
1042 | } |
---|
1043 | if (SmtpPhase != NULL) |
---|
1044 | { |
---|
1045 | (void) sm_snprintf(bp, SPACELEFT(buf, bp), |
---|
1046 | " during %s", SmtpPhase); |
---|
1047 | } |
---|
1048 | return buf; |
---|
1049 | |
---|
1050 | case EHOSTDOWN: |
---|
1051 | if (CurHostName == NULL) |
---|
1052 | break; |
---|
1053 | (void) sm_snprintf(buf, sizeof buf, "Host %s is down", |
---|
1054 | shortenstring(CurHostName, MAXSHORTSTR)); |
---|
1055 | return buf; |
---|
1056 | |
---|
1057 | case ECONNREFUSED: |
---|
1058 | if (CurHostName == NULL) |
---|
1059 | break; |
---|
1060 | (void) sm_strlcpyn(buf, sizeof buf, 2, "Connection refused by ", |
---|
1061 | shortenstring(CurHostName, MAXSHORTSTR)); |
---|
1062 | return buf; |
---|
1063 | |
---|
1064 | #if NAMED_BIND |
---|
1065 | case HOST_NOT_FOUND + E_DNSBASE: |
---|
1066 | dnsmsg = "host not found"; |
---|
1067 | break; |
---|
1068 | |
---|
1069 | case TRY_AGAIN + E_DNSBASE: |
---|
1070 | dnsmsg = "host name lookup failure"; |
---|
1071 | break; |
---|
1072 | |
---|
1073 | case NO_RECOVERY + E_DNSBASE: |
---|
1074 | dnsmsg = "non-recoverable error"; |
---|
1075 | break; |
---|
1076 | |
---|
1077 | case NO_DATA + E_DNSBASE: |
---|
1078 | dnsmsg = "no data known"; |
---|
1079 | break; |
---|
1080 | #endif /* NAMED_BIND */ |
---|
1081 | |
---|
1082 | case EPERM: |
---|
1083 | /* SunOS gives "Not owner" -- this is the POSIX message */ |
---|
1084 | return "Operation not permitted"; |
---|
1085 | |
---|
1086 | /* |
---|
1087 | ** Error messages used internally in sendmail. |
---|
1088 | */ |
---|
1089 | |
---|
1090 | case E_SM_OPENTIMEOUT: |
---|
1091 | return "Timeout on file open"; |
---|
1092 | |
---|
1093 | case E_SM_NOSLINK: |
---|
1094 | return "Symbolic links not allowed"; |
---|
1095 | |
---|
1096 | case E_SM_NOHLINK: |
---|
1097 | return "Hard links not allowed"; |
---|
1098 | |
---|
1099 | case E_SM_REGONLY: |
---|
1100 | return "Regular files only"; |
---|
1101 | |
---|
1102 | case E_SM_ISEXEC: |
---|
1103 | return "Executable files not allowed"; |
---|
1104 | |
---|
1105 | case E_SM_WWDIR: |
---|
1106 | return "World writable directory"; |
---|
1107 | |
---|
1108 | case E_SM_GWDIR: |
---|
1109 | return "Group writable directory"; |
---|
1110 | |
---|
1111 | case E_SM_FILECHANGE: |
---|
1112 | return "File changed after open"; |
---|
1113 | |
---|
1114 | case E_SM_WWFILE: |
---|
1115 | return "World writable file"; |
---|
1116 | |
---|
1117 | case E_SM_GWFILE: |
---|
1118 | return "Group writable file"; |
---|
1119 | |
---|
1120 | case E_SM_GRFILE: |
---|
1121 | return "Group readable file"; |
---|
1122 | |
---|
1123 | case E_SM_WRFILE: |
---|
1124 | return "World readable file"; |
---|
1125 | } |
---|
1126 | |
---|
1127 | if (dnsmsg != NULL) |
---|
1128 | { |
---|
1129 | bp = buf; |
---|
1130 | bp += sm_strlcpy(bp, "Name server: ", sizeof buf); |
---|
1131 | if (CurHostName != NULL) |
---|
1132 | { |
---|
1133 | (void) sm_strlcpyn(bp, SPACELEFT(buf, bp), 2, |
---|
1134 | shortenstring(CurHostName, MAXSHORTSTR), ": "); |
---|
1135 | bp += strlen(bp); |
---|
1136 | } |
---|
1137 | (void) sm_strlcpy(bp, dnsmsg, SPACELEFT(buf, bp)); |
---|
1138 | return buf; |
---|
1139 | } |
---|
1140 | |
---|
1141 | #if LDAPMAP |
---|
1142 | if (errnum >= E_LDAPBASE) |
---|
1143 | return ldap_err2string(errnum - E_LDAPBASE); |
---|
1144 | #endif /* LDAPMAP */ |
---|
1145 | |
---|
1146 | #if HASSTRERROR |
---|
1147 | err = strerror(errnum); |
---|
1148 | if (err == NULL) |
---|
1149 | { |
---|
1150 | (void) sm_snprintf(buf, sizeof buf, "Error %d", errnum); |
---|
1151 | return buf; |
---|
1152 | } |
---|
1153 | return err; |
---|
1154 | #else /* HASSTRERROR */ |
---|
1155 | if (errnum > 0 && errnum < sys_nerr) |
---|
1156 | return sys_errlist[errnum]; |
---|
1157 | |
---|
1158 | (void) sm_snprintf(buf, sizeof buf, "Error %d", errnum); |
---|
1159 | return buf; |
---|
1160 | #endif /* HASSTRERROR */ |
---|
1161 | } |
---|