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Commit | Line | Data |
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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
996acce8 | 4 | * Log file routines for the CUPS scheduler. |
ef416fc2 | 5 | * |
7e86f2f6 | 6 | * Copyright 2007-2014 by Apple Inc. |
996acce8 | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
996acce8 MS |
9 | * These coded instructions, statements, and computer programs are the |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | */ |
15 | ||
16 | /* | |
17 | * Include necessary headers... | |
18 | */ | |
19 | ||
20 | #include "cupsd.h" | |
21 | #include <stdarg.h> | |
b423cd4c | 22 | #include <syslog.h> |
ef416fc2 | 23 | |
24 | ||
75bd9771 MS |
25 | /* |
26 | * Local globals... | |
27 | */ | |
28 | ||
28a463e0 MS |
29 | static _cups_mutex_t log_mutex = _CUPS_MUTEX_INITIALIZER; |
30 | /* Mutex for logging */ | |
7e86f2f6 | 31 | static size_t log_linesize = 0; /* Size of line for output file */ |
75bd9771 MS |
32 | static char *log_line = NULL; /* Line for output file */ |
33 | ||
cb7f98ee MS |
34 | #ifdef HAVE_VSYSLOG |
35 | static const int syslevels[] = /* SYSLOG levels... */ | |
36 | { | |
37 | 0, | |
38 | LOG_EMERG, | |
39 | LOG_ALERT, | |
40 | LOG_CRIT, | |
41 | LOG_ERR, | |
42 | LOG_WARNING, | |
43 | LOG_NOTICE, | |
44 | LOG_INFO, | |
45 | LOG_DEBUG, | |
46 | LOG_DEBUG | |
47 | }; | |
48 | #endif /* HAVE_VSYSLOG */ | |
49 | ||
75bd9771 | 50 | |
ef416fc2 | 51 | /* |
52 | * Local functions... | |
53 | */ | |
54 | ||
005dd1eb | 55 | static int format_log_line(const char *message, va_list ap); |
ef416fc2 | 56 | |
57 | ||
22c9029b MS |
58 | /* |
59 | * 'cupsdCheckLogFile()' - Open/rotate a log file if it needs it. | |
60 | */ | |
61 | ||
62 | int /* O - 1 if log file open */ | |
63 | cupsdCheckLogFile(cups_file_t **lf, /* IO - Log file */ | |
64 | const char *logname) /* I - Log filename */ | |
65 | { | |
66 | char backname[1024], /* Backup log filename */ | |
67 | filename[1024], /* Formatted log filename */ | |
68 | *ptr; /* Pointer into filename */ | |
69 | const char *logptr; /* Pointer into log filename */ | |
70 | ||
71 | ||
72 | /* | |
73 | * See if we have a log file to check... | |
74 | */ | |
75 | ||
76 | if (!lf || !logname || !logname[0]) | |
77 | return (1); | |
78 | ||
79 | /* | |
80 | * Format the filename as needed... | |
81 | */ | |
82 | ||
83 | if (!*lf || | |
84 | (strncmp(logname, "/dev/", 5) && cupsFileTell(*lf) > MaxLogSize && | |
85 | MaxLogSize > 0)) | |
86 | { | |
87 | /* | |
88 | * Handle format strings... | |
89 | */ | |
90 | ||
91 | filename[sizeof(filename) - 1] = '\0'; | |
92 | ||
93 | if (logname[0] != '/') | |
94 | { | |
95 | strlcpy(filename, ServerRoot, sizeof(filename)); | |
96 | strlcat(filename, "/", sizeof(filename)); | |
97 | } | |
98 | else | |
99 | filename[0] = '\0'; | |
100 | ||
101 | for (logptr = logname, ptr = filename + strlen(filename); | |
102 | *logptr && ptr < (filename + sizeof(filename) - 1); | |
103 | logptr ++) | |
104 | if (*logptr == '%') | |
105 | { | |
106 | /* | |
107 | * Format spec... | |
108 | */ | |
109 | ||
110 | logptr ++; | |
111 | if (*logptr == 's') | |
112 | { | |
113 | /* | |
114 | * Insert the server name... | |
115 | */ | |
116 | ||
7e86f2f6 | 117 | strlcpy(ptr, ServerName, sizeof(filename) - (size_t)(ptr - filename)); |
22c9029b MS |
118 | ptr += strlen(ptr); |
119 | } | |
120 | else | |
121 | { | |
122 | /* | |
123 | * Otherwise just insert the character... | |
124 | */ | |
125 | ||
126 | *ptr++ = *logptr; | |
127 | } | |
128 | } | |
129 | else | |
130 | *ptr++ = *logptr; | |
131 | ||
132 | *ptr = '\0'; | |
133 | } | |
134 | ||
135 | /* | |
136 | * See if the log file is open... | |
137 | */ | |
138 | ||
139 | if (!*lf) | |
140 | { | |
141 | /* | |
142 | * Nope, open the log file... | |
143 | */ | |
144 | ||
145 | if ((*lf = cupsFileOpen(filename, "a")) == NULL) | |
146 | { | |
147 | /* | |
148 | * If the file is in CUPS_LOGDIR then try to create a missing directory... | |
149 | */ | |
150 | ||
151 | if (!strncmp(filename, CUPS_LOGDIR, strlen(CUPS_LOGDIR))) | |
152 | { | |
153 | /* | |
154 | * Try updating the permissions of the containing log directory, using | |
155 | * the log file permissions as a basis... | |
156 | */ | |
157 | ||
7e86f2f6 | 158 | mode_t log_dir_perm = (mode_t)(0300 | LogFilePerm); |
22c9029b MS |
159 | /* LogFilePerm + owner write/search */ |
160 | if (log_dir_perm & 0040) | |
161 | log_dir_perm |= 0010; /* Add group search */ | |
162 | if (log_dir_perm & 0004) | |
163 | log_dir_perm |= 0001; /* Add other search */ | |
164 | ||
7e86f2f6 | 165 | cupsdCheckPermissions(CUPS_LOGDIR, NULL, log_dir_perm, RunUser, Group, 1, -1); |
22c9029b MS |
166 | |
167 | *lf = cupsFileOpen(filename, "a"); | |
168 | } | |
169 | ||
170 | if (*lf == NULL) | |
171 | { | |
172 | syslog(LOG_ERR, "Unable to open log file \"%s\" - %s", filename, | |
173 | strerror(errno)); | |
174 | ||
175 | if (FatalErrors & CUPSD_FATAL_LOG) | |
176 | cupsdEndProcess(getpid(), 0); | |
177 | ||
178 | return (0); | |
179 | } | |
180 | } | |
181 | ||
182 | if (strncmp(filename, "/dev/", 5)) | |
183 | { | |
184 | /* | |
185 | * Change ownership and permissions of non-device logs... | |
186 | */ | |
187 | ||
188 | fchown(cupsFileNumber(*lf), RunUser, Group); | |
189 | fchmod(cupsFileNumber(*lf), LogFilePerm); | |
190 | } | |
191 | } | |
192 | ||
193 | /* | |
194 | * Do we need to rotate the log? | |
195 | */ | |
196 | ||
197 | if (strncmp(logname, "/dev/", 5) && cupsFileTell(*lf) > MaxLogSize && | |
198 | MaxLogSize > 0) | |
199 | { | |
200 | /* | |
201 | * Rotate log file... | |
202 | */ | |
203 | ||
204 | cupsFileClose(*lf); | |
205 | ||
5a9febac | 206 | strlcpy(backname, filename, sizeof(backname)); |
22c9029b MS |
207 | strlcat(backname, ".O", sizeof(backname)); |
208 | ||
209 | unlink(backname); | |
210 | rename(filename, backname); | |
211 | ||
212 | if ((*lf = cupsFileOpen(filename, "a")) == NULL) | |
213 | { | |
214 | syslog(LOG_ERR, "Unable to open log file \"%s\" - %s", filename, | |
215 | strerror(errno)); | |
216 | ||
217 | if (FatalErrors & CUPSD_FATAL_LOG) | |
218 | cupsdEndProcess(getpid(), 0); | |
219 | ||
220 | return (0); | |
221 | } | |
222 | ||
223 | /* | |
224 | * Change ownership and permissions of non-device logs... | |
225 | */ | |
226 | ||
227 | fchown(cupsFileNumber(*lf), RunUser, Group); | |
228 | fchmod(cupsFileNumber(*lf), LogFilePerm); | |
229 | } | |
230 | ||
231 | return (1); | |
232 | } | |
233 | ||
234 | ||
ef416fc2 | 235 | /* |
236 | * 'cupsdGetDateTime()' - Returns a pointer to a date/time string. | |
237 | */ | |
238 | ||
239 | char * /* O - Date/time string */ | |
dfd5680b MS |
240 | cupsdGetDateTime(struct timeval *t, /* I - Time value or NULL for current */ |
241 | cupsd_time_t format) /* I - Format to use */ | |
ef416fc2 | 242 | { |
dfd5680b MS |
243 | struct timeval curtime; /* Current time value */ |
244 | struct tm *date; /* Date/time value */ | |
245 | static struct timeval last_time = { 0, 0 }; | |
246 | /* Last time we formatted */ | |
247 | static char s[1024]; /* Date/time string */ | |
ef416fc2 | 248 | static const char * const months[12] =/* Months */ |
249 | { | |
250 | "Jan", | |
251 | "Feb", | |
252 | "Mar", | |
253 | "Apr", | |
254 | "May", | |
255 | "Jun", | |
256 | "Jul", | |
257 | "Aug", | |
258 | "Sep", | |
259 | "Oct", | |
260 | "Nov", | |
261 | "Dec" | |
262 | }; | |
263 | ||
264 | ||
839a51c8 MS |
265 | /* |
266 | * Make sure we have a valid time... | |
267 | */ | |
268 | ||
269 | if (!t) | |
dfd5680b MS |
270 | { |
271 | gettimeofday(&curtime, NULL); | |
272 | t = &curtime; | |
273 | } | |
839a51c8 | 274 | |
dfd5680b MS |
275 | if (t->tv_sec != last_time.tv_sec || |
276 | (LogTimeFormat == CUPSD_TIME_USECS && t->tv_usec != last_time.tv_usec)) | |
ef416fc2 | 277 | { |
dfd5680b | 278 | last_time = *t; |
ef416fc2 | 279 | |
280 | /* | |
281 | * Get the date and time from the UNIX time value, and then format it | |
282 | * into a string. Note that we *can't* use the strftime() function since | |
283 | * it is localized and will seriously confuse automatic programs if the | |
284 | * month names are in the wrong language! | |
285 | * | |
286 | * Also, we use the "timezone" variable that contains the current timezone | |
287 | * offset from GMT in seconds so that we are reporting local time in the | |
288 | * log files. If you want GMT, set the TZ environment variable accordingly | |
289 | * before starting the scheduler. | |
290 | * | |
291 | * (*BSD and Darwin store the timezone offset in the tm structure) | |
292 | */ | |
293 | ||
dfd5680b | 294 | date = localtime(&(t->tv_sec)); |
ef416fc2 | 295 | |
dfd5680b MS |
296 | if (format == CUPSD_TIME_STANDARD) |
297 | snprintf(s, sizeof(s), "[%02d/%s/%04d:%02d:%02d:%02d %+03ld%02ld]", | |
298 | date->tm_mday, months[date->tm_mon], 1900 + date->tm_year, | |
299 | date->tm_hour, date->tm_min, date->tm_sec, | |
300 | #ifdef HAVE_TM_GMTOFF | |
301 | date->tm_gmtoff / 3600, (date->tm_gmtoff / 60) % 60); | |
302 | #else | |
303 | timezone / 3600, (timezone / 60) % 60); | |
304 | #endif /* HAVE_TM_GMTOFF */ | |
305 | else | |
306 | snprintf(s, sizeof(s), "[%02d/%s/%04d:%02d:%02d:%02d.%06d %+03ld%02ld]", | |
307 | date->tm_mday, months[date->tm_mon], 1900 + date->tm_year, | |
bf3816c7 | 308 | date->tm_hour, date->tm_min, date->tm_sec, (int)t->tv_usec, |
ef416fc2 | 309 | #ifdef HAVE_TM_GMTOFF |
dfd5680b | 310 | date->tm_gmtoff / 3600, (date->tm_gmtoff / 60) % 60); |
ef416fc2 | 311 | #else |
dfd5680b | 312 | timezone / 3600, (timezone / 60) % 60); |
ef416fc2 | 313 | #endif /* HAVE_TM_GMTOFF */ |
314 | } | |
315 | ||
316 | return (s); | |
317 | } | |
318 | ||
319 | ||
22c9029b MS |
320 | /* |
321 | * 'cupsdLogFCMessage()' - Log a file checking message. | |
322 | */ | |
323 | ||
324 | void | |
325 | cupsdLogFCMessage( | |
326 | void *context, /* I - Printer (if any) */ | |
327 | _cups_fc_result_t result, /* I - Check result */ | |
328 | const char *message) /* I - Message to log */ | |
329 | { | |
330 | cupsd_printer_t *p = (cupsd_printer_t *)context; | |
331 | /* Printer */ | |
332 | cupsd_loglevel_t level; /* Log level */ | |
333 | ||
334 | ||
335 | if (result == _CUPS_FILE_CHECK_OK) | |
336 | level = CUPSD_LOG_DEBUG2; | |
337 | else | |
338 | level = CUPSD_LOG_ERROR; | |
339 | ||
340 | if (p) | |
341 | { | |
342 | cupsdLogMessage(level, "%s: %s", p->name, message); | |
343 | ||
344 | if (result == _CUPS_FILE_CHECK_MISSING || | |
345 | result == _CUPS_FILE_CHECK_WRONG_TYPE) | |
346 | { | |
347 | strlcpy(p->state_message, message, sizeof(p->state_message)); | |
348 | ||
349 | if (cupsdSetPrinterReasons(p, "+cups-missing-filter-warning")) | |
350 | cupsdAddEvent(CUPSD_EVENT_PRINTER_STATE, p, NULL, "%s", message); | |
351 | } | |
88f9aafc MS |
352 | else if (result == _CUPS_FILE_CHECK_PERMISSIONS || |
353 | result == _CUPS_FILE_CHECK_RELATIVE_PATH) | |
22c9029b MS |
354 | { |
355 | strlcpy(p->state_message, message, sizeof(p->state_message)); | |
356 | ||
357 | if (cupsdSetPrinterReasons(p, "+cups-insecure-filter-warning")) | |
358 | cupsdAddEvent(CUPSD_EVENT_PRINTER_STATE, p, NULL, "%s", message); | |
359 | } | |
360 | } | |
361 | else | |
362 | cupsdLogMessage(level, "%s", message); | |
363 | } | |
364 | ||
365 | ||
f7deaa1a | 366 | #ifdef HAVE_GSSAPI |
367 | /* | |
368 | * 'cupsdLogGSSMessage()' - Log a GSSAPI error... | |
369 | */ | |
370 | ||
371 | int /* O - 1 on success, 0 on error */ | |
372 | cupsdLogGSSMessage( | |
373 | int level, /* I - Log level */ | |
7e86f2f6 MS |
374 | OM_uint32 major_status, /* I - Major GSSAPI status */ |
375 | OM_uint32 minor_status, /* I - Minor GSSAPI status */ | |
f7deaa1a | 376 | const char *message, /* I - printf-style message string */ |
377 | ...) /* I - Additional args as needed */ | |
378 | { | |
379 | OM_uint32 err_major_status, /* Major status code for display */ | |
380 | err_minor_status; /* Minor status code for display */ | |
381 | OM_uint32 msg_ctx; /* Message context */ | |
382 | gss_buffer_desc major_status_string = GSS_C_EMPTY_BUFFER, | |
383 | /* Major status message */ | |
384 | minor_status_string = GSS_C_EMPTY_BUFFER; | |
385 | /* Minor status message */ | |
386 | int ret; /* Return value */ | |
dcb445bc | 387 | char buffer[8192]; /* Buffer for vsnprintf */ |
f7deaa1a | 388 | |
389 | ||
dcb445bc MS |
390 | if (strchr(message, '%')) |
391 | { | |
392 | /* | |
393 | * Format the message string... | |
394 | */ | |
395 | ||
396 | va_list ap; /* Pointer to arguments */ | |
397 | ||
398 | va_start(ap, message); | |
399 | vsnprintf(buffer, sizeof(buffer), message, ap); | |
400 | va_end(ap); | |
401 | ||
402 | message = buffer; | |
403 | } | |
404 | ||
f7deaa1a | 405 | msg_ctx = 0; |
406 | err_major_status = gss_display_status(&err_minor_status, | |
407 | major_status, | |
408 | GSS_C_GSS_CODE, | |
409 | GSS_C_NO_OID, | |
410 | &msg_ctx, | |
411 | &major_status_string); | |
412 | ||
413 | if (!GSS_ERROR(err_major_status)) | |
1f0275e3 MS |
414 | gss_display_status(&err_minor_status, minor_status, GSS_C_MECH_CODE, |
415 | GSS_C_NULL_OID, &msg_ctx, &minor_status_string); | |
f7deaa1a | 416 | |
417 | ret = cupsdLogMessage(level, "%s: %s, %s", message, | |
418 | (char *)major_status_string.value, | |
419 | (char *)minor_status_string.value); | |
420 | gss_release_buffer(&err_minor_status, &major_status_string); | |
421 | gss_release_buffer(&err_minor_status, &minor_status_string); | |
422 | ||
423 | return (ret); | |
424 | } | |
425 | #endif /* HAVE_GSSAPI */ | |
426 | ||
427 | ||
996acce8 MS |
428 | /* |
429 | * 'cupsdLogClient()' - Log a client message. | |
430 | */ | |
431 | ||
432 | int /* O - 1 on success, 0 on error */ | |
433 | cupsdLogClient(cupsd_client_t *con, /* I - Client connection */ | |
434 | int level, /* I - Log level */ | |
435 | const char *message, /* I - Printf-style message string */ | |
436 | ...) /* I - Additional arguments as needed */ | |
437 | { | |
438 | va_list ap, ap2; /* Argument pointers */ | |
439 | char clientmsg[1024];/* Format string for client message */ | |
440 | int status; /* Formatting status */ | |
441 | ||
442 | ||
443 | /* | |
444 | * See if we want to log this message... | |
445 | */ | |
446 | ||
447 | if (TestConfigFile || !ErrorLog) | |
448 | return (1); | |
449 | ||
450 | if (level > LogLevel) | |
451 | return (1); | |
452 | ||
453 | /* | |
454 | * Format and write the log message... | |
455 | */ | |
456 | ||
457 | if (con) | |
458 | snprintf(clientmsg, sizeof(clientmsg), "[Client %d] %s", con->number, | |
459 | message); | |
460 | else | |
461 | strlcpy(clientmsg, message, sizeof(clientmsg)); | |
462 | ||
463 | va_start(ap, message); | |
464 | ||
465 | do | |
466 | { | |
467 | va_copy(ap2, ap); | |
468 | status = format_log_line(clientmsg, ap2); | |
469 | va_end(ap2); | |
470 | } | |
471 | while (status == 0); | |
472 | ||
473 | va_end(ap); | |
474 | ||
475 | if (status > 0) | |
476 | return (cupsdWriteErrorLog(level, log_line)); | |
477 | else | |
478 | return (cupsdWriteErrorLog(CUPSD_LOG_ERROR, | |
479 | "Unable to allocate memory for log line.")); | |
480 | } | |
481 | ||
482 | ||
ef416fc2 | 483 | /* |
75bd9771 | 484 | * 'cupsdLogJob()' - Log a job message. |
ef416fc2 | 485 | */ |
486 | ||
487 | int /* O - 1 on success, 0 on error */ | |
75bd9771 MS |
488 | cupsdLogJob(cupsd_job_t *job, /* I - Job */ |
489 | int level, /* I - Log level */ | |
490 | const char *message, /* I - Printf-style message string */ | |
491 | ...) /* I - Additional arguments as needed */ | |
ef416fc2 | 492 | { |
dcb445bc | 493 | va_list ap, ap2; /* Argument pointers */ |
005dd1eb MS |
494 | char jobmsg[1024]; /* Format string for job message */ |
495 | int status; /* Formatting status */ | |
ef416fc2 | 496 | |
497 | ||
498 | /* | |
499 | * See if we want to log this message... | |
500 | */ | |
501 | ||
94da7e34 MS |
502 | if (TestConfigFile || !ErrorLog) |
503 | return (1); | |
504 | ||
178cb736 MS |
505 | if ((level > LogLevel || |
506 | (level == CUPSD_LOG_INFO && LogLevel < CUPSD_LOG_DEBUG)) && | |
507 | LogDebugHistory <= 0) | |
2e4ff8af | 508 | return (1); |
2e4ff8af | 509 | |
ef416fc2 | 510 | /* |
75bd9771 | 511 | * Format and write the log message... |
ef416fc2 | 512 | */ |
513 | ||
dcb445bc MS |
514 | if (job) |
515 | snprintf(jobmsg, sizeof(jobmsg), "[Job %d] %s", job->id, message); | |
516 | else | |
517 | strlcpy(jobmsg, message, sizeof(jobmsg)); | |
518 | ||
519 | va_start(ap, message); | |
ef416fc2 | 520 | |
005dd1eb MS |
521 | do |
522 | { | |
dcb445bc MS |
523 | va_copy(ap2, ap); |
524 | status = format_log_line(jobmsg, ap2); | |
525 | va_end(ap2); | |
005dd1eb MS |
526 | } |
527 | while (status == 0); | |
771bd8cb | 528 | |
dcb445bc MS |
529 | va_end(ap); |
530 | ||
005dd1eb | 531 | if (status > 0) |
178cb736 | 532 | { |
dcb445bc MS |
533 | if (job && |
534 | (level > LogLevel || | |
178cb736 MS |
535 | (level == CUPSD_LOG_INFO && LogLevel < CUPSD_LOG_DEBUG)) && |
536 | LogDebugHistory > 0) | |
537 | { | |
538 | /* | |
539 | * Add message to the job history... | |
540 | */ | |
541 | ||
542 | cupsd_joblog_t *temp; /* Copy of log message */ | |
ff2b08f9 MS |
543 | size_t log_len = strlen(log_line); |
544 | /* Length of log message */ | |
178cb736 | 545 | |
ff2b08f9 | 546 | if ((temp = malloc(sizeof(cupsd_joblog_t) + log_len)) != NULL) |
178cb736 MS |
547 | { |
548 | temp->time = time(NULL); | |
ff2b08f9 | 549 | memcpy(temp->message, log_line, log_len + 1); |
178cb736 MS |
550 | } |
551 | ||
552 | if (!job->history) | |
553 | job->history = cupsArrayNew(NULL, NULL); | |
554 | ||
555 | if (job->history && temp) | |
556 | { | |
557 | cupsArrayAdd(job->history, temp); | |
558 | ||
559 | if (cupsArrayCount(job->history) > LogDebugHistory) | |
560 | { | |
561 | /* | |
562 | * Remove excess messages... | |
563 | */ | |
564 | ||
565 | temp = cupsArrayFirst(job->history); | |
566 | cupsArrayRemove(job->history, temp); | |
567 | free(temp); | |
568 | } | |
569 | } | |
570 | else if (temp) | |
571 | free(temp); | |
572 | ||
573 | return (1); | |
574 | } | |
575 | else if (level <= LogLevel && | |
576 | (level != CUPSD_LOG_INFO || LogLevel >= CUPSD_LOG_DEBUG)) | |
577 | return (cupsdWriteErrorLog(level, log_line)); | |
578 | else | |
579 | return (1); | |
580 | } | |
75bd9771 MS |
581 | else |
582 | return (cupsdWriteErrorLog(CUPSD_LOG_ERROR, | |
996acce8 | 583 | "Unable to allocate memory for log line.")); |
75bd9771 | 584 | } |
ef416fc2 | 585 | |
ef416fc2 | 586 | |
75bd9771 MS |
587 | /* |
588 | * 'cupsdLogMessage()' - Log a message to the error log file. | |
589 | */ | |
ef416fc2 | 590 | |
75bd9771 MS |
591 | int /* O - 1 on success, 0 on error */ |
592 | cupsdLogMessage(int level, /* I - Log level */ | |
593 | const char *message, /* I - printf-style message string */ | |
594 | ...) /* I - Additional args as needed */ | |
595 | { | |
dcb445bc | 596 | va_list ap, ap2; /* Argument pointers */ |
005dd1eb | 597 | int status; /* Formatting status */ |
ef416fc2 | 598 | |
ef416fc2 | 599 | |
600 | /* | |
75bd9771 | 601 | * See if we want to log this message... |
ef416fc2 | 602 | */ |
603 | ||
85dda01c | 604 | if ((TestConfigFile || !ErrorLog) && level <= CUPSD_LOG_WARN) |
ef416fc2 | 605 | { |
a4845881 | 606 | va_start(ap, message); |
cb7f98ee MS |
607 | #ifdef HAVE_VSYSLOG |
608 | vsyslog(LOG_LPR | syslevels[level], message, ap); | |
609 | #else | |
a4845881 MS |
610 | vfprintf(stderr, message, ap); |
611 | putc('\n', stderr); | |
cb7f98ee | 612 | #endif /* HAVE_VSYSLOG */ |
a4845881 | 613 | va_end(ap); |
ef416fc2 | 614 | |
75bd9771 | 615 | return (1); |
ef416fc2 | 616 | } |
617 | ||
75bd9771 MS |
618 | if (level > LogLevel || !ErrorLog) |
619 | return (1); | |
ef416fc2 | 620 | |
621 | /* | |
75bd9771 | 622 | * Format and write the log message... |
ef416fc2 | 623 | */ |
624 | ||
dcb445bc MS |
625 | va_start(ap, message); |
626 | ||
005dd1eb MS |
627 | do |
628 | { | |
dcb445bc MS |
629 | va_copy(ap2, ap); |
630 | status = format_log_line(message, ap2); | |
631 | va_end(ap2); | |
005dd1eb MS |
632 | } |
633 | while (status == 0); | |
ef416fc2 | 634 | |
dcb445bc MS |
635 | va_end(ap); |
636 | ||
005dd1eb MS |
637 | if (status > 0) |
638 | return (cupsdWriteErrorLog(level, log_line)); | |
75bd9771 MS |
639 | else |
640 | return (cupsdWriteErrorLog(CUPSD_LOG_ERROR, | |
641 | "Unable to allocate memory for log line!")); | |
ef416fc2 | 642 | } |
643 | ||
644 | ||
645 | /* | |
646 | * 'cupsdLogPage()' - Log a page to the page log file. | |
647 | */ | |
648 | ||
649 | int /* O - 1 on success, 0 on error */ | |
650 | cupsdLogPage(cupsd_job_t *job, /* I - Job being printed */ | |
651 | const char *page) /* I - Page being printed */ | |
652 | { | |
01ce6322 MS |
653 | int i; /* Looping var */ |
654 | char buffer[2048], /* Buffer for page log */ | |
655 | *bufptr, /* Pointer into buffer */ | |
656 | name[256]; /* Attribute name */ | |
657 | const char *format, /* Pointer into PageLogFormat */ | |
658 | *nameend; /* End of attribute name */ | |
659 | ipp_attribute_t *attr; /* Current attribute */ | |
771bd8cb MS |
660 | char number[256]; /* Page number */ |
661 | int copies; /* Number of copies */ | |
ef416fc2 | 662 | |
663 | ||
01ce6322 MS |
664 | /* |
665 | * Format the line going into the page log... | |
666 | */ | |
667 | ||
668 | if (!PageLogFormat) | |
669 | return (1); | |
670 | ||
5a9febac | 671 | strlcpy(number, "1", sizeof(number)); |
771bd8cb MS |
672 | copies = 1; |
673 | sscanf(page, "%255s%d", number, &copies); | |
01ce6322 MS |
674 | |
675 | for (format = PageLogFormat, bufptr = buffer; *format; format ++) | |
676 | { | |
677 | if (*format == '%') | |
678 | { | |
679 | format ++; | |
680 | ||
681 | switch (*format) | |
682 | { | |
683 | case '%' : /* Literal % */ | |
684 | if (bufptr < (buffer + sizeof(buffer) - 1)) | |
685 | *bufptr++ = '%'; | |
686 | break; | |
687 | ||
688 | case 'p' : /* Printer name */ | |
7e86f2f6 | 689 | strlcpy(bufptr, job->printer->name, sizeof(buffer) - (size_t)(bufptr - buffer)); |
01ce6322 MS |
690 | bufptr += strlen(bufptr); |
691 | break; | |
692 | ||
693 | case 'j' : /* Job ID */ | |
7e86f2f6 | 694 | snprintf(bufptr, sizeof(buffer) - (size_t)(bufptr - buffer), "%d", job->id); |
01ce6322 MS |
695 | bufptr += strlen(bufptr); |
696 | break; | |
697 | ||
698 | case 'u' : /* Username */ | |
7e86f2f6 | 699 | strlcpy(bufptr, job->username ? job->username : "-", sizeof(buffer) - (size_t)(bufptr - buffer)); |
01ce6322 MS |
700 | bufptr += strlen(bufptr); |
701 | break; | |
702 | ||
703 | case 'T' : /* Date and time */ | |
7e86f2f6 | 704 | strlcpy(bufptr, cupsdGetDateTime(NULL, LogTimeFormat), sizeof(buffer) - (size_t)(bufptr - buffer)); |
01ce6322 MS |
705 | bufptr += strlen(bufptr); |
706 | break; | |
707 | ||
708 | case 'P' : /* Page number */ | |
7e86f2f6 | 709 | strlcpy(bufptr, number, sizeof(buffer) - (size_t)(bufptr - buffer)); |
01ce6322 MS |
710 | bufptr += strlen(bufptr); |
711 | break; | |
712 | ||
713 | case 'C' : /* Number of copies */ | |
7e86f2f6 | 714 | snprintf(bufptr, sizeof(buffer) - (size_t)(bufptr - buffer), "%d", copies); |
01ce6322 MS |
715 | bufptr += strlen(bufptr); |
716 | break; | |
717 | ||
718 | case '{' : /* {attribute} */ | |
7e86f2f6 | 719 | if ((nameend = strchr(format, '}')) != NULL && (size_t)(nameend - format - 2) < (sizeof(name) - 1)) |
01ce6322 MS |
720 | { |
721 | /* | |
722 | * Pull the name from inside the brackets... | |
723 | */ | |
724 | ||
07623986 | 725 | memcpy(name, format + 1, (size_t)(nameend - format - 1)); |
75bd9771 MS |
726 | name[nameend - format - 1] = '\0'; |
727 | ||
728 | format = nameend; | |
01ce6322 MS |
729 | |
730 | if ((attr = ippFindAttribute(job->attrs, name, | |
731 | IPP_TAG_ZERO)) != NULL) | |
732 | { | |
733 | /* | |
734 | * Add the attribute value... | |
735 | */ | |
736 | ||
01ce6322 MS |
737 | for (i = 0; |
738 | i < attr->num_values && | |
739 | bufptr < (buffer + sizeof(buffer) - 1); | |
740 | i ++) | |
741 | { | |
742 | if (i) | |
743 | *bufptr++ = ','; | |
744 | ||
745 | switch (attr->value_tag) | |
746 | { | |
747 | case IPP_TAG_INTEGER : | |
748 | case IPP_TAG_ENUM : | |
7e86f2f6 | 749 | snprintf(bufptr, sizeof(buffer) - (size_t)(bufptr - buffer), "%d", attr->values[i].integer); |
01ce6322 MS |
750 | bufptr += strlen(bufptr); |
751 | break; | |
752 | ||
753 | case IPP_TAG_BOOLEAN : | |
7e86f2f6 | 754 | snprintf(bufptr, sizeof(buffer) - (size_t)(bufptr - buffer), "%d", attr->values[i].boolean); |
01ce6322 MS |
755 | bufptr += strlen(bufptr); |
756 | break; | |
757 | ||
758 | case IPP_TAG_TEXTLANG : | |
759 | case IPP_TAG_NAMELANG : | |
760 | case IPP_TAG_TEXT : | |
761 | case IPP_TAG_NAME : | |
762 | case IPP_TAG_KEYWORD : | |
763 | case IPP_TAG_URI : | |
764 | case IPP_TAG_URISCHEME : | |
765 | case IPP_TAG_CHARSET : | |
766 | case IPP_TAG_LANGUAGE : | |
767 | case IPP_TAG_MIMETYPE : | |
7e86f2f6 | 768 | strlcpy(bufptr, attr->values[i].string.text, sizeof(buffer) - (size_t)(bufptr - buffer)); |
01ce6322 MS |
769 | bufptr += strlen(bufptr); |
770 | break; | |
771 | ||
772 | default : | |
7e86f2f6 | 773 | strlcpy(bufptr, "???", sizeof(buffer) - (size_t)(bufptr - buffer)); |
01ce6322 MS |
774 | bufptr += strlen(bufptr); |
775 | break; | |
776 | } | |
777 | } | |
778 | } | |
779 | else if (bufptr < (buffer + sizeof(buffer) - 1)) | |
780 | *bufptr++ = '-'; | |
781 | break; | |
782 | } | |
783 | ||
784 | default : | |
785 | if (bufptr < (buffer + sizeof(buffer) - 2)) | |
786 | { | |
787 | *bufptr++ = '%'; | |
788 | *bufptr++ = *format; | |
789 | } | |
790 | break; | |
791 | } | |
792 | } | |
793 | else if (bufptr < (buffer + sizeof(buffer) - 1)) | |
794 | *bufptr++ = *format; | |
795 | } | |
ef416fc2 | 796 | |
01ce6322 | 797 | *bufptr = '\0'; |
771bd8cb | 798 | |
ef416fc2 | 799 | #ifdef HAVE_VSYSLOG |
800 | /* | |
801 | * See if we are logging pages via syslog... | |
802 | */ | |
803 | ||
804 | if (!strcmp(PageLog, "syslog")) | |
805 | { | |
01ce6322 | 806 | syslog(LOG_INFO, "%s", buffer); |
ef416fc2 | 807 | |
808 | return (1); | |
809 | } | |
810 | #endif /* HAVE_VSYSLOG */ | |
811 | ||
812 | /* | |
813 | * Not using syslog; check the log file... | |
814 | */ | |
815 | ||
22c9029b | 816 | if (!cupsdCheckLogFile(&PageFile, PageLog)) |
ef416fc2 | 817 | return (0); |
818 | ||
819 | /* | |
820 | * Print a page log entry of the form: | |
821 | * | |
ac884b6a | 822 | * printer user job-id [DD/MON/YYYY:HH:MM:SS +TTTT] page num-copies \ |
ef416fc2 | 823 | * billing hostname |
824 | */ | |
825 | ||
01ce6322 | 826 | cupsFilePrintf(PageFile, "%s\n", buffer); |
ef416fc2 | 827 | cupsFileFlush(PageFile); |
828 | ||
829 | return (1); | |
830 | } | |
831 | ||
832 | ||
833 | /* | |
834 | * 'cupsdLogRequest()' - Log an HTTP request in Common Log Format. | |
835 | */ | |
836 | ||
837 | int /* O - 1 on success, 0 on error */ | |
838 | cupsdLogRequest(cupsd_client_t *con, /* I - Request to log */ | |
839 | http_status_t code) /* I - Response code */ | |
840 | { | |
839a51c8 | 841 | char temp[2048]; /* Temporary string for URI */ |
ef416fc2 | 842 | static const char * const states[] = /* HTTP client states... */ |
843 | { | |
844 | "WAITING", | |
845 | "OPTIONS", | |
846 | "GET", | |
847 | "GET", | |
848 | "HEAD", | |
849 | "POST", | |
850 | "POST", | |
851 | "POST", | |
852 | "PUT", | |
853 | "PUT", | |
854 | "DELETE", | |
855 | "TRACE", | |
856 | "CLOSE", | |
857 | "STATUS" | |
858 | }; | |
859 | ||
860 | ||
1f0275e3 MS |
861 | /* |
862 | * Filter requests as needed... | |
863 | */ | |
864 | ||
865 | if (AccessLogLevel < CUPSD_ACCESSLOG_ALL) | |
866 | { | |
867 | /* | |
ba55dc12 | 868 | * Eliminate simple GET, POST, and PUT requests... |
1f0275e3 MS |
869 | */ |
870 | ||
871 | if ((con->operation == HTTP_GET && | |
872 | strncmp(con->uri, "/admin/conf", 11) && | |
873 | strncmp(con->uri, "/admin/log", 10)) || | |
874 | (con->operation == HTTP_POST && !con->request && | |
875 | strncmp(con->uri, "/admin", 6)) || | |
ba55dc12 MS |
876 | (con->operation != HTTP_GET && con->operation != HTTP_POST && |
877 | con->operation != HTTP_PUT)) | |
1f0275e3 MS |
878 | return (1); |
879 | ||
880 | if (con->request && con->response && | |
e07d4801 MS |
881 | (con->response->request.status.status_code < IPP_REDIRECTION_OTHER_SITE || |
882 | con->response->request.status.status_code == IPP_NOT_FOUND)) | |
1f0275e3 MS |
883 | { |
884 | /* | |
885 | * Check successful requests... | |
886 | */ | |
887 | ||
888 | ipp_op_t op = con->request->request.op.operation_id; | |
889 | static cupsd_accesslog_t standard_ops[] = | |
890 | { | |
891 | CUPSD_ACCESSLOG_ALL, /* reserved */ | |
892 | CUPSD_ACCESSLOG_ALL, /* reserved */ | |
893 | CUPSD_ACCESSLOG_ACTIONS,/* Print-Job */ | |
894 | CUPSD_ACCESSLOG_ACTIONS,/* Print-URI */ | |
895 | CUPSD_ACCESSLOG_ACTIONS,/* Validate-Job */ | |
896 | CUPSD_ACCESSLOG_ACTIONS,/* Create-Job */ | |
897 | CUPSD_ACCESSLOG_ACTIONS,/* Send-Document */ | |
898 | CUPSD_ACCESSLOG_ACTIONS,/* Send-URI */ | |
899 | CUPSD_ACCESSLOG_ACTIONS,/* Cancel-Job */ | |
900 | CUPSD_ACCESSLOG_ALL, /* Get-Job-Attributes */ | |
901 | CUPSD_ACCESSLOG_ALL, /* Get-Jobs */ | |
902 | CUPSD_ACCESSLOG_ALL, /* Get-Printer-Attributes */ | |
903 | CUPSD_ACCESSLOG_ACTIONS,/* Hold-Job */ | |
904 | CUPSD_ACCESSLOG_ACTIONS,/* Release-Job */ | |
905 | CUPSD_ACCESSLOG_ACTIONS,/* Restart-Job */ | |
906 | CUPSD_ACCESSLOG_ALL, /* reserved */ | |
907 | CUPSD_ACCESSLOG_CONFIG, /* Pause-Printer */ | |
908 | CUPSD_ACCESSLOG_CONFIG, /* Resume-Printer */ | |
909 | CUPSD_ACCESSLOG_CONFIG, /* Purge-Jobs */ | |
910 | CUPSD_ACCESSLOG_CONFIG, /* Set-Printer-Attributes */ | |
911 | CUPSD_ACCESSLOG_ACTIONS,/* Set-Job-Attributes */ | |
912 | CUPSD_ACCESSLOG_CONFIG, /* Get-Printer-Supported-Values */ | |
913 | CUPSD_ACCESSLOG_ACTIONS,/* Create-Printer-Subscription */ | |
914 | CUPSD_ACCESSLOG_ACTIONS,/* Create-Job-Subscription */ | |
915 | CUPSD_ACCESSLOG_ALL, /* Get-Subscription-Attributes */ | |
916 | CUPSD_ACCESSLOG_ALL, /* Get-Subscriptions */ | |
917 | CUPSD_ACCESSLOG_ACTIONS,/* Renew-Subscription */ | |
918 | CUPSD_ACCESSLOG_ACTIONS,/* Cancel-Subscription */ | |
919 | CUPSD_ACCESSLOG_ALL, /* Get-Notifications */ | |
920 | CUPSD_ACCESSLOG_ACTIONS,/* Send-Notifications */ | |
921 | CUPSD_ACCESSLOG_ALL, /* reserved */ | |
922 | CUPSD_ACCESSLOG_ALL, /* reserved */ | |
923 | CUPSD_ACCESSLOG_ALL, /* reserved */ | |
924 | CUPSD_ACCESSLOG_ALL, /* Get-Print-Support-Files */ | |
925 | CUPSD_ACCESSLOG_CONFIG, /* Enable-Printer */ | |
926 | CUPSD_ACCESSLOG_CONFIG, /* Disable-Printer */ | |
927 | CUPSD_ACCESSLOG_CONFIG, /* Pause-Printer-After-Current-Job */ | |
928 | CUPSD_ACCESSLOG_ACTIONS,/* Hold-New-Jobs */ | |
929 | CUPSD_ACCESSLOG_ACTIONS,/* Release-Held-New-Jobs */ | |
930 | CUPSD_ACCESSLOG_CONFIG, /* Deactivate-Printer */ | |
931 | CUPSD_ACCESSLOG_CONFIG, /* Activate-Printer */ | |
932 | CUPSD_ACCESSLOG_CONFIG, /* Restart-Printer */ | |
933 | CUPSD_ACCESSLOG_CONFIG, /* Shutdown-Printer */ | |
934 | CUPSD_ACCESSLOG_CONFIG, /* Startup-Printer */ | |
935 | CUPSD_ACCESSLOG_ACTIONS,/* Reprocess-Job */ | |
936 | CUPSD_ACCESSLOG_ACTIONS,/* Cancel-Current-Job */ | |
937 | CUPSD_ACCESSLOG_ACTIONS,/* Suspend-Current-Job */ | |
938 | CUPSD_ACCESSLOG_ACTIONS,/* Resume-Job */ | |
939 | CUPSD_ACCESSLOG_ACTIONS,/* Promote-Job */ | |
940 | CUPSD_ACCESSLOG_ACTIONS /* Schedule-Job-After */ | |
941 | }; | |
942 | static cupsd_accesslog_t cups_ops[] = | |
943 | { | |
944 | CUPSD_ACCESSLOG_ALL, /* CUPS-Get-Default */ | |
945 | CUPSD_ACCESSLOG_ALL, /* CUPS-Get-Printers */ | |
946 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Add-Modify-Printer */ | |
947 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Delete-Printer */ | |
948 | CUPSD_ACCESSLOG_ALL, /* CUPS-Get-Classes */ | |
949 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Add-Modify-Class */ | |
950 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Delete-Class */ | |
951 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Accept-Jobs */ | |
952 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Reject-Jobs */ | |
953 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Set-Default */ | |
954 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Get-Devices */ | |
955 | CUPSD_ACCESSLOG_CONFIG, /* CUPS-Get-PPDs */ | |
956 | CUPSD_ACCESSLOG_ACTIONS,/* CUPS-Move-Job */ | |
957 | CUPSD_ACCESSLOG_ACTIONS,/* CUPS-Authenticate-Job */ | |
958 | CUPSD_ACCESSLOG_ALL /* CUPS-Get-PPD */ | |
959 | }; | |
771bd8cb | 960 | |
1f0275e3 MS |
961 | |
962 | if ((op <= IPP_SCHEDULE_JOB_AFTER && standard_ops[op] > AccessLogLevel) || | |
963 | (op >= CUPS_GET_DEFAULT && op <= CUPS_GET_PPD && | |
964 | cups_ops[op - CUPS_GET_DEFAULT] > AccessLogLevel)) | |
965 | return (1); | |
966 | } | |
967 | } | |
968 | ||
ef416fc2 | 969 | #ifdef HAVE_VSYSLOG |
970 | /* | |
971 | * See if we are logging accesses via syslog... | |
972 | */ | |
973 | ||
974 | if (!strcmp(AccessLog, "syslog")) | |
975 | { | |
2abf387c | 976 | syslog(LOG_INFO, |
977 | "REQUEST %s - %s \"%s %s HTTP/%d.%d\" %d " CUPS_LLFMT " %s %s\n", | |
996acce8 | 978 | con->http->hostname, con->username[0] != '\0' ? con->username : "-", |
839a51c8 | 979 | states[con->operation], _httpEncodeURI(temp, con->uri, sizeof(temp)), |
996acce8 | 980 | con->http->version / 100, con->http->version % 100, |
2abf387c | 981 | code, CUPS_LLCAST con->bytes, |
982 | con->request ? | |
983 | ippOpString(con->request->request.op.operation_id) : "-", | |
984 | con->response ? | |
985 | ippErrorString(con->response->request.status.status_code) : "-"); | |
ef416fc2 | 986 | |
987 | return (1); | |
988 | } | |
989 | #endif /* HAVE_VSYSLOG */ | |
990 | ||
991 | /* | |
992 | * Not using syslog; check the log file... | |
993 | */ | |
994 | ||
22c9029b | 995 | if (!cupsdCheckLogFile(&AccessFile, AccessLog)) |
ef416fc2 | 996 | return (0); |
997 | ||
998 | /* | |
999 | * Write a log of the request in "common log format"... | |
1000 | */ | |
1001 | ||
1002 | cupsFilePrintf(AccessFile, | |
1003 | "%s - %s %s \"%s %s HTTP/%d.%d\" %d " CUPS_LLFMT " %s %s\n", | |
996acce8 | 1004 | con->http->hostname, |
c8fef167 | 1005 | con->username[0] != '\0' ? con->username : "-", |
dfd5680b MS |
1006 | cupsdGetDateTime(&(con->start), LogTimeFormat), |
1007 | states[con->operation], | |
839a51c8 | 1008 | _httpEncodeURI(temp, con->uri, sizeof(temp)), |
996acce8 | 1009 | con->http->version / 100, con->http->version % 100, |
ef416fc2 | 1010 | code, CUPS_LLCAST con->bytes, |
1011 | con->request ? | |
1012 | ippOpString(con->request->request.op.operation_id) : "-", | |
1013 | con->response ? | |
1014 | ippErrorString(con->response->request.status.status_code) : | |
1015 | "-"); | |
1016 | ||
1017 | cupsFileFlush(AccessFile); | |
1018 | ||
1019 | return (1); | |
1020 | } | |
1021 | ||
1022 | ||
75bd9771 MS |
1023 | /* |
1024 | * 'cupsdWriteErrorLog()' - Write a line to the ErrorLog. | |
1025 | */ | |
1026 | ||
1027 | int /* O - 1 on success, 0 on failure */ | |
1028 | cupsdWriteErrorLog(int level, /* I - Log level */ | |
1029 | const char *message) /* I - Message string */ | |
1030 | { | |
28a463e0 | 1031 | int ret = 1; /* Return value */ |
75bd9771 MS |
1032 | static const char levels[] = /* Log levels... */ |
1033 | { | |
1034 | ' ', | |
1035 | 'X', | |
1036 | 'A', | |
1037 | 'C', | |
1038 | 'E', | |
1039 | 'W', | |
1040 | 'N', | |
1041 | 'I', | |
1042 | 'D', | |
1043 | 'd' | |
1044 | }; | |
75bd9771 MS |
1045 | |
1046 | ||
1047 | #ifdef HAVE_VSYSLOG | |
1048 | /* | |
1049 | * See if we are logging errors via syslog... | |
1050 | */ | |
1051 | ||
1052 | if (!strcmp(ErrorLog, "syslog")) | |
1053 | { | |
1054 | syslog(syslevels[level], "%s", message); | |
1055 | return (1); | |
1056 | } | |
1057 | #endif /* HAVE_VSYSLOG */ | |
1058 | ||
1059 | /* | |
1060 | * Not using syslog; check the log file... | |
1061 | */ | |
1062 | ||
28a463e0 MS |
1063 | _cupsMutexLock(&log_mutex); |
1064 | ||
22c9029b | 1065 | if (!cupsdCheckLogFile(&ErrorFile, ErrorLog)) |
28a463e0 MS |
1066 | { |
1067 | ret = 0; | |
1068 | } | |
1069 | else | |
1070 | { | |
1071 | /* | |
1072 | * Write the log message... | |
1073 | */ | |
75bd9771 | 1074 | |
28a463e0 MS |
1075 | cupsFilePrintf(ErrorFile, "%c %s %s\n", levels[level], |
1076 | cupsdGetDateTime(NULL, LogTimeFormat), message); | |
1077 | cupsFileFlush(ErrorFile); | |
1078 | } | |
75bd9771 | 1079 | |
28a463e0 | 1080 | _cupsMutexUnlock(&log_mutex); |
75bd9771 | 1081 | |
28a463e0 | 1082 | return (ret); |
75bd9771 MS |
1083 | } |
1084 | ||
1085 | ||
ef416fc2 | 1086 | /* |
75bd9771 MS |
1087 | * 'format_log_line()' - Format a line for a log file. |
1088 | * | |
1089 | * This function resizes a global string buffer as needed. Each call returns | |
1090 | * a pointer to this buffer, so the contents are only good until the next call | |
1091 | * to format_log_line()... | |
1092 | */ | |
1093 | ||
005dd1eb | 1094 | static int /* O - -1 for fatal, 0 for retry, 1 for success */ |
75bd9771 MS |
1095 | format_log_line(const char *message, /* I - Printf-style format string */ |
1096 | va_list ap) /* I - Argument list */ | |
1097 | { | |
7e86f2f6 | 1098 | ssize_t len; /* Length of formatted line */ |
75bd9771 MS |
1099 | |
1100 | ||
1101 | /* | |
1102 | * Allocate the line buffer as needed... | |
1103 | */ | |
1104 | ||
1105 | if (!log_linesize) | |
1106 | { | |
1107 | log_linesize = 8192; | |
1108 | log_line = malloc(log_linesize); | |
1109 | ||
1110 | if (!log_line) | |
005dd1eb | 1111 | return (-1); |
75bd9771 MS |
1112 | } |
1113 | ||
1114 | /* | |
1115 | * Format the log message... | |
1116 | */ | |
1117 | ||
1118 | len = vsnprintf(log_line, log_linesize, message, ap); | |
1119 | ||
1120 | /* | |
1121 | * Resize the buffer as needed... | |
1122 | */ | |
1123 | ||
7e86f2f6 | 1124 | if ((size_t)len >= log_linesize && log_linesize < 65536) |
75bd9771 MS |
1125 | { |
1126 | char *temp; /* Temporary string pointer */ | |
1127 | ||
1128 | ||
1129 | len ++; | |
1130 | ||
1131 | if (len < 8192) | |
1132 | len = 8192; | |
1133 | else if (len > 65536) | |
1134 | len = 65536; | |
1135 | ||
7e86f2f6 | 1136 | temp = realloc(log_line, (size_t)len); |
75bd9771 MS |
1137 | |
1138 | if (temp) | |
1139 | { | |
1140 | log_line = temp; | |
7e86f2f6 | 1141 | log_linesize = (size_t)len; |
75bd9771 | 1142 | |
005dd1eb MS |
1143 | return (0); |
1144 | } | |
75bd9771 MS |
1145 | } |
1146 | ||
005dd1eb | 1147 | return (1); |
75bd9771 MS |
1148 | } |
1149 | ||
1150 | ||
1151 | /* | |
f2d18633 | 1152 | * End of "$Id$". |
ef416fc2 | 1153 | */ |