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274a4a44 | 1 | /* |
274a4a44 | 2 | * Logging of zebra |
718e3744 | 3 | * Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
e0ca5fde DL |
23 | #define QUAGGA_DEFINE_DESC_TABLE |
24 | ||
718e3744 | 25 | #include <zebra.h> |
26 | ||
27 | #include "log.h" | |
28 | #include "memory.h" | |
29 | #include "command.h" | |
7d149b8e | 30 | #ifndef SUNOS_5 |
31 | #include <sys/un.h> | |
32 | #endif | |
30a2231a PJ |
33 | /* for printstack on solaris */ |
34 | #ifdef HAVE_UCONTEXT_H | |
35 | #include <ucontext.h> | |
36 | #endif | |
718e3744 | 37 | |
c4c7d0c4 | 38 | static int logfile_fd = -1; /* Used in signal handler. */ |
1e221354 | 39 | |
718e3744 | 40 | struct zlog *zlog_default = NULL; |
41 | ||
42 | const char *zlog_proto_names[] = | |
43 | { | |
44 | "NONE", | |
45 | "DEFAULT", | |
46 | "ZEBRA", | |
47 | "RIP", | |
48 | "BGP", | |
49 | "OSPF", | |
50 | "RIPNG", | |
51 | "OSPF6", | |
9e867fe6 | 52 | "ISIS", |
12e41d03 | 53 | "PIM", |
718e3744 | 54 | "MASC", |
55 | NULL, | |
56 | }; | |
57 | ||
58 | const char *zlog_priority[] = | |
59 | { | |
60 | "emergencies", | |
61 | "alerts", | |
62 | "critical", | |
63 | "errors", | |
64 | "warnings", | |
65 | "notifications", | |
66 | "informational", | |
67 | "debugging", | |
68 | NULL, | |
69 | }; | |
718e3744 | 70 | |
7a49a5b5 DS |
71 | /* |
72 | * write_wrapper | |
73 | * | |
74 | * glibc has declared that the return value from write *must* not be | |
75 | * ignored. | |
76 | * gcc see's this problem and issues a warning for the line. | |
77 | * | |
78 | * Why is this a big deal you say? Because both of them are right | |
79 | * and if you have -Werror enabled then all calls to write | |
80 | * generate a build error and the build stops. | |
81 | * | |
82 | * clang has helpfully allowed this construct: | |
83 | * (void)write(...) | |
84 | * to tell the compiler yeah I know it has a return value | |
85 | * I don't care about it at this time. | |
86 | * gcc doesn't have this ability. | |
87 | * | |
88 | * This code was written such that it didn't care about the | |
89 | * return value from write. At this time do I want | |
90 | * to go through and fix and test this code for correctness. | |
91 | * So just wrapper the bad behavior and move on. | |
92 | */ | |
93 | static void write_wrapper (int fd, const void *buf, size_t count) | |
94 | { | |
95 | if (write (fd, buf, count) <= 0) | |
96 | return; | |
97 | ||
98 | return; | |
99 | } | |
6b0655a2 | 100 | |
718e3744 | 101 | /* For time string format. */ |
718e3744 | 102 | |
1ed72e0b AS |
103 | size_t |
104 | quagga_timestamp(int timestamp_precision, char *buf, size_t buflen) | |
718e3744 | 105 | { |
1ed72e0b AS |
106 | static struct { |
107 | time_t last; | |
108 | size_t len; | |
109 | char buf[28]; | |
110 | } cache; | |
111 | struct timeval clock; | |
112 | ||
113 | /* would it be sufficient to use global 'recent_time' here? I fear not... */ | |
114 | gettimeofday(&clock, NULL); | |
115 | ||
116 | /* first, we update the cache if the time has changed */ | |
117 | if (cache.last != clock.tv_sec) | |
118 | { | |
119 | struct tm *tm; | |
120 | cache.last = clock.tv_sec; | |
121 | tm = localtime(&cache.last); | |
122 | cache.len = strftime(cache.buf, sizeof(cache.buf), | |
123 | "%Y/%m/%d %H:%M:%S", tm); | |
124 | } | |
125 | /* note: it's not worth caching the subsecond part, because | |
126 | chances are that back-to-back calls are not sufficiently close together | |
127 | for the clock not to have ticked forward */ | |
718e3744 | 128 | |
1ed72e0b AS |
129 | if (buflen > cache.len) |
130 | { | |
131 | memcpy(buf, cache.buf, cache.len); | |
132 | if ((timestamp_precision > 0) && | |
133 | (buflen > cache.len+1+timestamp_precision)) | |
134 | { | |
135 | /* should we worry about locale issues? */ | |
bcdda30b AS |
136 | static const int divisor[] = {0, 100000, 10000, 1000, 100, 10, 1}; |
137 | int prec; | |
138 | char *p = buf+cache.len+1+(prec = timestamp_precision); | |
139 | *p-- = '\0'; | |
140 | while (prec > 6) | |
141 | /* this is unlikely to happen, but protect anyway */ | |
142 | { | |
143 | *p-- = '0'; | |
144 | prec--; | |
145 | } | |
146 | clock.tv_usec /= divisor[prec]; | |
1ed72e0b AS |
147 | do |
148 | { | |
bcdda30b AS |
149 | *p-- = '0'+(clock.tv_usec % 10); |
150 | clock.tv_usec /= 10; | |
1ed72e0b | 151 | } |
bcdda30b AS |
152 | while (--prec > 0); |
153 | *p = '.'; | |
154 | return cache.len+1+timestamp_precision; | |
1ed72e0b AS |
155 | } |
156 | buf[cache.len] = '\0'; | |
157 | return cache.len; | |
158 | } | |
159 | if (buflen > 0) | |
160 | buf[0] = '\0'; | |
161 | return 0; | |
162 | } | |
718e3744 | 163 | |
1ed72e0b AS |
164 | /* Utility routine for current time printing. */ |
165 | static void | |
166 | time_print(FILE *fp, struct timestamp_control *ctl) | |
167 | { | |
168 | if (!ctl->already_rendered) | |
169 | { | |
170 | ctl->len = quagga_timestamp(ctl->precision, ctl->buf, sizeof(ctl->buf)); | |
171 | ctl->already_rendered = 1; | |
172 | } | |
173 | fprintf(fp, "%s ", ctl->buf); | |
718e3744 | 174 | } |
1ed72e0b | 175 | |
6b0655a2 | 176 | |
718e3744 | 177 | /* va_list version of zlog. */ |
d246bd96 | 178 | static void |
179 | vzlog (struct zlog *zl, int priority, const char *format, va_list args) | |
718e3744 | 180 | { |
7c8ff89e | 181 | char proto_str[32]; |
1ed72e0b AS |
182 | struct timestamp_control tsctl; |
183 | tsctl.already_rendered = 0; | |
184 | ||
718e3744 | 185 | /* If zlog is not specified, use default one. */ |
186 | if (zl == NULL) | |
187 | zl = zlog_default; | |
188 | ||
189 | /* When zlog_default is also NULL, use stderr for logging. */ | |
190 | if (zl == NULL) | |
191 | { | |
1ed72e0b AS |
192 | tsctl.precision = 0; |
193 | time_print(stderr, &tsctl); | |
718e3744 | 194 | fprintf (stderr, "%s: ", "unknown"); |
d246bd96 | 195 | vfprintf (stderr, format, args); |
718e3744 | 196 | fprintf (stderr, "\n"); |
197 | fflush (stderr); | |
198 | ||
199 | /* In this case we return at here. */ | |
200 | return; | |
201 | } | |
1ed72e0b | 202 | tsctl.precision = zl->timestamp_precision; |
718e3744 | 203 | |
718e3744 | 204 | /* Syslog output */ |
274a4a44 | 205 | if (priority <= zl->maxlvl[ZLOG_DEST_SYSLOG]) |
d246bd96 | 206 | { |
207 | va_list ac; | |
208 | va_copy(ac, args); | |
209 | vsyslog (priority|zlog_default->facility, format, ac); | |
210 | va_end(ac); | |
211 | } | |
718e3744 | 212 | |
7c8ff89e DS |
213 | if (zl->instance) |
214 | sprintf (proto_str, "%s[%d]: ", zlog_proto_names[zl->protocol], zl->instance); | |
215 | else | |
216 | sprintf (proto_str, "%s: ", zlog_proto_names[zl->protocol]); | |
217 | ||
718e3744 | 218 | /* File output. */ |
274a4a44 | 219 | if ((priority <= zl->maxlvl[ZLOG_DEST_FILE]) && zl->fp) |
718e3744 | 220 | { |
d246bd96 | 221 | va_list ac; |
1ed72e0b | 222 | time_print (zl->fp, &tsctl); |
b04c699e | 223 | if (zl->record_priority) |
224 | fprintf (zl->fp, "%s: ", zlog_priority[priority]); | |
7c8ff89e | 225 | fprintf (zl->fp, "%s", proto_str); |
d246bd96 | 226 | va_copy(ac, args); |
227 | vfprintf (zl->fp, format, ac); | |
228 | va_end(ac); | |
718e3744 | 229 | fprintf (zl->fp, "\n"); |
230 | fflush (zl->fp); | |
231 | } | |
232 | ||
233 | /* stdout output. */ | |
274a4a44 | 234 | if (priority <= zl->maxlvl[ZLOG_DEST_STDOUT]) |
718e3744 | 235 | { |
d246bd96 | 236 | va_list ac; |
1ed72e0b | 237 | time_print (stdout, &tsctl); |
b04c699e | 238 | if (zl->record_priority) |
239 | fprintf (stdout, "%s: ", zlog_priority[priority]); | |
7c8ff89e | 240 | fprintf (stdout, "%s", proto_str); |
d246bd96 | 241 | va_copy(ac, args); |
242 | vfprintf (stdout, format, ac); | |
243 | va_end(ac); | |
718e3744 | 244 | fprintf (stdout, "\n"); |
245 | fflush (stdout); | |
246 | } | |
247 | ||
718e3744 | 248 | /* Terminal monitor. */ |
274a4a44 | 249 | if (priority <= zl->maxlvl[ZLOG_DEST_MONITOR]) |
250 | vty_log ((zl->record_priority ? zlog_priority[priority] : NULL), | |
7c8ff89e | 251 | proto_str, format, &tsctl, args); |
718e3744 | 252 | } |
253 | ||
59a06a91 | 254 | static char * |
255 | str_append(char *dst, int len, const char *src) | |
256 | { | |
257 | while ((len-- > 0) && *src) | |
258 | *dst++ = *src++; | |
259 | return dst; | |
260 | } | |
261 | ||
262 | static char * | |
263 | num_append(char *s, int len, u_long x) | |
264 | { | |
265 | char buf[30]; | |
7d149b8e | 266 | char *t; |
59a06a91 | 267 | |
7d149b8e | 268 | if (!x) |
269 | return str_append(s,len,"0"); | |
270 | *(t = &buf[sizeof(buf)-1]) = '\0'; | |
59a06a91 | 271 | while (x && (t > buf)) |
272 | { | |
273 | *--t = '0'+(x % 10); | |
274 | x /= 10; | |
275 | } | |
276 | return str_append(s,len,t); | |
277 | } | |
278 | ||
fb66b29c | 279 | #if defined(SA_SIGINFO) || defined(HAVE_STACK_TRACE) |
7d149b8e | 280 | static char * |
281 | hex_append(char *s, int len, u_long x) | |
282 | { | |
283 | char buf[30]; | |
284 | char *t; | |
285 | ||
286 | if (!x) | |
287 | return str_append(s,len,"0"); | |
288 | *(t = &buf[sizeof(buf)-1]) = '\0'; | |
289 | while (x && (t > buf)) | |
290 | { | |
291 | u_int cc = (x % 16); | |
292 | *--t = ((cc < 10) ? ('0'+cc) : ('a'+cc-10)); | |
293 | x /= 16; | |
294 | } | |
295 | return str_append(s,len,t); | |
296 | } | |
31364274 | 297 | #endif |
7d149b8e | 298 | |
7d149b8e | 299 | /* Needs to be enhanced to support Solaris. */ |
300 | static int | |
301 | syslog_connect(void) | |
302 | { | |
303 | #ifdef SUNOS_5 | |
304 | return -1; | |
305 | #else | |
306 | int fd; | |
307 | char *s; | |
308 | struct sockaddr_un addr; | |
309 | ||
310 | if ((fd = socket(AF_UNIX,SOCK_DGRAM,0)) < 0) | |
311 | return -1; | |
312 | addr.sun_family = AF_UNIX; | |
313 | #ifdef _PATH_LOG | |
314 | #define SYSLOG_SOCKET_PATH _PATH_LOG | |
315 | #else | |
316 | #define SYSLOG_SOCKET_PATH "/dev/log" | |
317 | #endif | |
318 | s = str_append(addr.sun_path,sizeof(addr.sun_path),SYSLOG_SOCKET_PATH); | |
319 | #undef SYSLOG_SOCKET_PATH | |
320 | *s = '\0'; | |
321 | if (connect(fd,(struct sockaddr *)&addr,sizeof(addr)) < 0) | |
322 | { | |
323 | close(fd); | |
324 | return -1; | |
325 | } | |
326 | return fd; | |
327 | #endif | |
328 | } | |
329 | ||
330 | static void | |
331 | syslog_sigsafe(int priority, const char *msg, size_t msglen) | |
332 | { | |
1e221354 | 333 | static int syslog_fd = -1; |
7d149b8e | 334 | char buf[sizeof("<1234567890>ripngd[1234567890]: ")+msglen+50]; |
335 | char *s; | |
336 | ||
337 | if ((syslog_fd < 0) && ((syslog_fd = syslog_connect()) < 0)) | |
338 | return; | |
339 | ||
340 | #define LOC s,buf+sizeof(buf)-s | |
341 | s = buf; | |
342 | s = str_append(LOC,"<"); | |
343 | s = num_append(LOC,priority); | |
344 | s = str_append(LOC,">"); | |
345 | /* forget about the timestamp, too difficult in a signal handler */ | |
346 | s = str_append(LOC,zlog_default->ident); | |
347 | if (zlog_default->syslog_options & LOG_PID) | |
348 | { | |
349 | s = str_append(LOC,"["); | |
350 | s = num_append(LOC,getpid()); | |
351 | s = str_append(LOC,"]"); | |
352 | } | |
353 | s = str_append(LOC,": "); | |
354 | s = str_append(LOC,msg); | |
7a49a5b5 | 355 | write_wrapper (syslog_fd,buf,s-buf); |
7d149b8e | 356 | #undef LOC |
357 | } | |
358 | ||
1e221354 | 359 | static int |
360 | open_crashlog(void) | |
361 | { | |
362 | #define CRASHLOG_PREFIX "/var/tmp/quagga." | |
363 | #define CRASHLOG_SUFFIX "crashlog" | |
364 | if (zlog_default && zlog_default->ident) | |
365 | { | |
366 | /* Avoid strlen since it is not async-signal-safe. */ | |
367 | const char *p; | |
368 | size_t ilen; | |
369 | ||
370 | for (p = zlog_default->ident, ilen = 0; *p; p++) | |
371 | ilen++; | |
372 | { | |
373 | char buf[sizeof(CRASHLOG_PREFIX)+ilen+sizeof(CRASHLOG_SUFFIX)+3]; | |
374 | char *s = buf; | |
375 | #define LOC s,buf+sizeof(buf)-s | |
376 | s = str_append(LOC, CRASHLOG_PREFIX); | |
377 | s = str_append(LOC, zlog_default->ident); | |
378 | s = str_append(LOC, "."); | |
379 | s = str_append(LOC, CRASHLOG_SUFFIX); | |
380 | #undef LOC | |
381 | *s = '\0'; | |
382 | return open(buf, O_WRONLY|O_CREAT|O_EXCL, LOGFILE_MASK); | |
383 | } | |
384 | } | |
385 | return open(CRASHLOG_PREFIX CRASHLOG_SUFFIX, O_WRONLY|O_CREAT|O_EXCL, | |
386 | LOGFILE_MASK); | |
387 | #undef CRASHLOG_SUFFIX | |
388 | #undef CRASHLOG_PREFIX | |
389 | } | |
390 | ||
7d149b8e | 391 | /* Note: the goal here is to use only async-signal-safe functions. */ |
59a06a91 | 392 | void |
31364274 | 393 | zlog_signal(int signo, const char *action |
394 | #ifdef SA_SIGINFO | |
395 | , siginfo_t *siginfo, void *program_counter | |
396 | #endif | |
397 | ) | |
59a06a91 | 398 | { |
399 | time_t now; | |
40abf239 | 400 | char buf[sizeof("DEFAULT: Received signal S at T (si_addr 0xP, PC 0xP); aborting...")+100]; |
59a06a91 | 401 | char *s = buf; |
7d149b8e | 402 | char *msgstart = buf; |
59a06a91 | 403 | #define LOC s,buf+sizeof(buf)-s |
404 | ||
405 | time(&now); | |
406 | if (zlog_default) | |
407 | { | |
408 | s = str_append(LOC,zlog_proto_names[zlog_default->protocol]); | |
409 | *s++ = ':'; | |
410 | *s++ = ' '; | |
7d149b8e | 411 | msgstart = s; |
59a06a91 | 412 | } |
413 | s = str_append(LOC,"Received signal "); | |
414 | s = num_append(LOC,signo); | |
415 | s = str_append(LOC," at "); | |
416 | s = num_append(LOC,now); | |
31364274 | 417 | #ifdef SA_SIGINFO |
40abf239 | 418 | s = str_append(LOC," (si_addr 0x"); |
419 | s = hex_append(LOC,(u_long)(siginfo->si_addr)); | |
420 | if (program_counter) | |
421 | { | |
422 | s = str_append(LOC,", PC 0x"); | |
423 | s = hex_append(LOC,(u_long)program_counter); | |
424 | } | |
425 | s = str_append(LOC,"); "); | |
31364274 | 426 | #else /* SA_SIGINFO */ |
427 | s = str_append(LOC,"; "); | |
428 | #endif /* SA_SIGINFO */ | |
59a06a91 | 429 | s = str_append(LOC,action); |
7d149b8e | 430 | if (s < buf+sizeof(buf)) |
431 | *s++ = '\n'; | |
59a06a91 | 432 | |
274a4a44 | 433 | /* N.B. implicit priority is most severe */ |
1e221354 | 434 | #define PRI LOG_CRIT |
274a4a44 | 435 | |
7a49a5b5 | 436 | #define DUMP(FD) write_wrapper(FD, buf, s-buf); |
1e221354 | 437 | /* If no file logging configured, try to write to fallback log file. */ |
c4c7d0c4 | 438 | if ((logfile_fd >= 0) || ((logfile_fd = open_crashlog()) >= 0)) |
439 | DUMP(logfile_fd) | |
59a06a91 | 440 | if (!zlog_default) |
c4c7d0c4 | 441 | DUMP(STDERR_FILENO) |
59a06a91 | 442 | else |
443 | { | |
274a4a44 | 444 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) |
c4c7d0c4 | 445 | DUMP(STDOUT_FILENO) |
274a4a44 | 446 | /* Remove trailing '\n' for monitor and syslog */ |
447 | *--s = '\0'; | |
448 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
449 | vty_log_fixed(buf,s-buf); | |
450 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
451 | syslog_sigsafe(PRI|zlog_default->facility,msgstart,s-msgstart); | |
59a06a91 | 452 | } |
453 | #undef DUMP | |
454 | ||
31364274 | 455 | zlog_backtrace_sigsafe(PRI, |
456 | #ifdef SA_SIGINFO | |
457 | program_counter | |
458 | #else | |
459 | NULL | |
460 | #endif | |
461 | ); | |
274a4a44 | 462 | #undef PRI |
063ee52a | 463 | #undef LOC |
464 | } | |
465 | ||
466 | /* Log a backtrace using only async-signal-safe functions. | |
467 | Needs to be enhanced to support syslog logging. */ | |
468 | void | |
239c26fd | 469 | zlog_backtrace_sigsafe(int priority, void *program_counter) |
063ee52a | 470 | { |
fb66b29c | 471 | #ifdef HAVE_STACK_TRACE |
239c26fd | 472 | static const char pclabel[] = "Program counter: "; |
94fc1dd4 | 473 | void *array[64]; |
063ee52a | 474 | int size; |
475 | char buf[100]; | |
94fc1dd4 | 476 | char *s, **bt = NULL; |
063ee52a | 477 | #define LOC s,buf+sizeof(buf)-s |
59a06a91 | 478 | |
fb66b29c | 479 | #ifdef HAVE_GLIBC_BACKTRACE |
4d474fa3 DL |
480 | size = backtrace(array, array_size(array)); |
481 | if (size <= 0 || (size_t)size > array_size(array)) | |
063ee52a | 482 | return; |
59a06a91 | 483 | |
1e221354 | 484 | #define DUMP(FD) { \ |
239c26fd | 485 | if (program_counter) \ |
486 | { \ | |
7a49a5b5 | 487 | write_wrapper(FD, pclabel, sizeof(pclabel)-1); \ |
1e221354 | 488 | backtrace_symbols_fd(&program_counter, 1, FD); \ |
239c26fd | 489 | } \ |
7a49a5b5 | 490 | write_wrapper(FD, buf, s-buf); \ |
1e221354 | 491 | backtrace_symbols_fd(array, size, FD); \ |
59a06a91 | 492 | } |
fb66b29c PJ |
493 | #elif defined(HAVE_PRINTSTACK) |
494 | #define DUMP(FD) { \ | |
495 | if (program_counter) \ | |
7a49a5b5 DS |
496 | write_wrapper((FD), pclabel, sizeof(pclabel)-1); \ |
497 | write_wrapper((FD), buf, s-buf); \ | |
fb66b29c PJ |
498 | printstack((FD)); \ |
499 | } | |
500 | #endif /* HAVE_GLIBC_BACKTRACE, HAVE_PRINTSTACK */ | |
501 | ||
502 | s = buf; | |
503 | s = str_append(LOC,"Backtrace for "); | |
504 | s = num_append(LOC,size); | |
505 | s = str_append(LOC," stack frames:\n"); | |
59a06a91 | 506 | |
c4c7d0c4 | 507 | if ((logfile_fd >= 0) || ((logfile_fd = open_crashlog()) >= 0)) |
508 | DUMP(logfile_fd) | |
59a06a91 | 509 | if (!zlog_default) |
c4c7d0c4 | 510 | DUMP(STDERR_FILENO) |
59a06a91 | 511 | else |
512 | { | |
274a4a44 | 513 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) |
c4c7d0c4 | 514 | DUMP(STDOUT_FILENO) |
274a4a44 | 515 | /* Remove trailing '\n' for monitor and syslog */ |
516 | *--s = '\0'; | |
517 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
518 | vty_log_fixed(buf,s-buf); | |
519 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
520 | syslog_sigsafe(priority|zlog_default->facility,buf,s-buf); | |
521 | { | |
522 | int i; | |
94fc1dd4 SH |
523 | #ifdef HAVE_GLIBC_BACKTRACE |
524 | bt = backtrace_symbols(array, size); | |
525 | #endif | |
274a4a44 | 526 | /* Just print the function addresses. */ |
527 | for (i = 0; i < size; i++) | |
528 | { | |
529 | s = buf; | |
94fc1dd4 SH |
530 | if (bt) |
531 | s = str_append(LOC, bt[i]); | |
532 | else { | |
533 | s = str_append(LOC,"[bt "); | |
534 | s = num_append(LOC,i); | |
535 | s = str_append(LOC,"] 0x"); | |
536 | s = hex_append(LOC,(u_long)(array[i])); | |
537 | } | |
274a4a44 | 538 | *s = '\0'; |
539 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
540 | vty_log_fixed(buf,s-buf); | |
541 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
7d149b8e | 542 | syslog_sigsafe(priority|zlog_default->facility,buf,s-buf); |
274a4a44 | 543 | } |
94fc1dd4 SH |
544 | if (bt) |
545 | free(bt); | |
274a4a44 | 546 | } |
59a06a91 | 547 | } |
548 | #undef DUMP | |
59a06a91 | 549 | #undef LOC |
fb66b29c | 550 | #endif /* HAVE_STRACK_TRACE */ |
063ee52a | 551 | } |
552 | ||
553 | void | |
554 | zlog_backtrace(int priority) | |
555 | { | |
556 | #ifndef HAVE_GLIBC_BACKTRACE | |
557 | zlog(NULL, priority, "No backtrace available on this platform."); | |
558 | #else | |
559 | void *array[20]; | |
560 | int size, i; | |
561 | char **strings; | |
562 | ||
4d474fa3 DL |
563 | size = backtrace(array, array_size(array)); |
564 | if (size <= 0 || (size_t)size > array_size(array)) | |
063ee52a | 565 | { |
566 | zlog_err("Cannot get backtrace, returned invalid # of frames %d " | |
1ed72e0b | 567 | "(valid range is between 1 and %lu)", |
837d16cc | 568 | size, (unsigned long)(array_size(array))); |
063ee52a | 569 | return; |
570 | } | |
571 | zlog(NULL, priority, "Backtrace for %d stack frames:", size); | |
572 | if (!(strings = backtrace_symbols(array, size))) | |
573 | { | |
574 | zlog_err("Cannot get backtrace symbols (out of memory?)"); | |
575 | for (i = 0; i < size; i++) | |
576 | zlog(NULL, priority, "[bt %d] %p",i,array[i]); | |
577 | } | |
578 | else | |
579 | { | |
580 | for (i = 0; i < size; i++) | |
581 | zlog(NULL, priority, "[bt %d] %s",i,strings[i]); | |
582 | free(strings); | |
583 | } | |
584 | #endif /* HAVE_GLIBC_BACKTRACE */ | |
59a06a91 | 585 | } |
586 | ||
718e3744 | 587 | void |
588 | zlog (struct zlog *zl, int priority, const char *format, ...) | |
589 | { | |
d246bd96 | 590 | va_list args; |
718e3744 | 591 | |
d246bd96 | 592 | va_start(args, format); |
718e3744 | 593 | vzlog (zl, priority, format, args); |
d246bd96 | 594 | va_end (args); |
718e3744 | 595 | } |
596 | ||
d246bd96 | 597 | #define ZLOG_FUNC(FUNCNAME,PRIORITY) \ |
598 | void \ | |
599 | FUNCNAME(const char *format, ...) \ | |
600 | { \ | |
601 | va_list args; \ | |
602 | va_start(args, format); \ | |
603 | vzlog (NULL, PRIORITY, format, args); \ | |
604 | va_end(args); \ | |
718e3744 | 605 | } |
606 | ||
d246bd96 | 607 | ZLOG_FUNC(zlog_err, LOG_ERR) |
718e3744 | 608 | |
d246bd96 | 609 | ZLOG_FUNC(zlog_warn, LOG_WARNING) |
718e3744 | 610 | |
d246bd96 | 611 | ZLOG_FUNC(zlog_info, LOG_INFO) |
718e3744 | 612 | |
d246bd96 | 613 | ZLOG_FUNC(zlog_notice, LOG_NOTICE) |
718e3744 | 614 | |
d246bd96 | 615 | ZLOG_FUNC(zlog_debug, LOG_DEBUG) |
718e3744 | 616 | |
d246bd96 | 617 | #undef ZLOG_FUNC |
718e3744 | 618 | |
cee3df1e | 619 | void |
620 | _zlog_assert_failed (const char *assertion, const char *file, | |
621 | unsigned int line, const char *function) | |
622 | { | |
c4c7d0c4 | 623 | /* Force fallback file logging? */ |
624 | if (zlog_default && !zlog_default->fp && | |
625 | ((logfile_fd = open_crashlog()) >= 0) && | |
626 | ((zlog_default->fp = fdopen(logfile_fd, "w")) != NULL)) | |
627 | zlog_default->maxlvl[ZLOG_DEST_FILE] = LOG_ERR; | |
1e221354 | 628 | zlog(NULL, LOG_CRIT, "Assertion `%s' failed in file %s, line %u, function %s", |
629 | assertion,file,line,(function ? function : "?")); | |
630 | zlog_backtrace(LOG_CRIT); | |
cee3df1e | 631 | abort(); |
632 | } | |
633 | ||
6b0655a2 | 634 | |
718e3744 | 635 | /* Open log stream */ |
636 | struct zlog * | |
7c8ff89e | 637 | openzlog (const char *progname, zlog_proto_t protocol, u_short instance, |
718e3744 | 638 | int syslog_flags, int syslog_facility) |
639 | { | |
640 | struct zlog *zl; | |
274a4a44 | 641 | u_int i; |
718e3744 | 642 | |
274a4a44 | 643 | zl = XCALLOC(MTYPE_ZLOG, sizeof (struct zlog)); |
718e3744 | 644 | |
645 | zl->ident = progname; | |
718e3744 | 646 | zl->protocol = protocol; |
7c8ff89e | 647 | zl->instance = instance; |
718e3744 | 648 | zl->facility = syslog_facility; |
7d149b8e | 649 | zl->syslog_options = syslog_flags; |
718e3744 | 650 | |
274a4a44 | 651 | /* Set default logging levels. */ |
837d16cc | 652 | for (i = 0; i < array_size(zl->maxlvl); i++) |
274a4a44 | 653 | zl->maxlvl[i] = ZLOG_DISABLED; |
654 | zl->maxlvl[ZLOG_DEST_MONITOR] = LOG_DEBUG; | |
655 | zl->default_lvl = LOG_DEBUG; | |
656 | ||
718e3744 | 657 | openlog (progname, syslog_flags, zl->facility); |
658 | ||
659 | return zl; | |
660 | } | |
661 | ||
662 | void | |
663 | closezlog (struct zlog *zl) | |
664 | { | |
665 | closelog(); | |
228da428 CC |
666 | |
667 | if (zl->fp != NULL) | |
668 | fclose (zl->fp); | |
718e3744 | 669 | |
7e69d993 | 670 | if (zl->filename != NULL) |
6e919709 | 671 | XFREE(MTYPE_ZLOG, zl->filename); |
7e69d993 | 672 | |
718e3744 | 673 | XFREE (MTYPE_ZLOG, zl); |
674 | } | |
675 | ||
676 | /* Called from command.c. */ | |
677 | void | |
274a4a44 | 678 | zlog_set_level (struct zlog *zl, zlog_dest_t dest, int log_level) |
718e3744 | 679 | { |
680 | if (zl == NULL) | |
681 | zl = zlog_default; | |
682 | ||
274a4a44 | 683 | zl->maxlvl[dest] = log_level; |
718e3744 | 684 | } |
685 | ||
686 | int | |
274a4a44 | 687 | zlog_set_file (struct zlog *zl, const char *filename, int log_level) |
718e3744 | 688 | { |
689 | FILE *fp; | |
aa593d5e | 690 | mode_t oldumask; |
718e3744 | 691 | |
692 | /* There is opend file. */ | |
693 | zlog_reset_file (zl); | |
694 | ||
695 | /* Set default zl. */ | |
696 | if (zl == NULL) | |
697 | zl = zlog_default; | |
698 | ||
699 | /* Open file. */ | |
aa593d5e | 700 | oldumask = umask (0777 & ~LOGFILE_MASK); |
718e3744 | 701 | fp = fopen (filename, "a"); |
aa593d5e | 702 | umask(oldumask); |
274a4a44 | 703 | if (fp == NULL) |
704 | return 0; | |
718e3744 | 705 | |
706 | /* Set flags. */ | |
6e919709 | 707 | zl->filename = XSTRDUP(MTYPE_ZLOG, filename); |
274a4a44 | 708 | zl->maxlvl[ZLOG_DEST_FILE] = log_level; |
718e3744 | 709 | zl->fp = fp; |
c4c7d0c4 | 710 | logfile_fd = fileno(fp); |
718e3744 | 711 | |
712 | return 1; | |
713 | } | |
714 | ||
715 | /* Reset opend file. */ | |
716 | int | |
717 | zlog_reset_file (struct zlog *zl) | |
718 | { | |
719 | if (zl == NULL) | |
720 | zl = zlog_default; | |
721 | ||
718e3744 | 722 | if (zl->fp) |
723 | fclose (zl->fp); | |
724 | zl->fp = NULL; | |
c4c7d0c4 | 725 | logfile_fd = -1; |
274a4a44 | 726 | zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED; |
718e3744 | 727 | |
728 | if (zl->filename) | |
6e919709 | 729 | XFREE(MTYPE_ZLOG, zl->filename); |
718e3744 | 730 | zl->filename = NULL; |
731 | ||
732 | return 1; | |
733 | } | |
734 | ||
735 | /* Reopen log file. */ | |
736 | int | |
737 | zlog_rotate (struct zlog *zl) | |
738 | { | |
274a4a44 | 739 | int level; |
718e3744 | 740 | |
741 | if (zl == NULL) | |
742 | zl = zlog_default; | |
743 | ||
744 | if (zl->fp) | |
745 | fclose (zl->fp); | |
746 | zl->fp = NULL; | |
c4c7d0c4 | 747 | logfile_fd = -1; |
274a4a44 | 748 | level = zl->maxlvl[ZLOG_DEST_FILE]; |
749 | zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED; | |
718e3744 | 750 | |
751 | if (zl->filename) | |
752 | { | |
aa593d5e | 753 | mode_t oldumask; |
274a4a44 | 754 | int save_errno; |
aa593d5e | 755 | |
756 | oldumask = umask (0777 & ~LOGFILE_MASK); | |
274a4a44 | 757 | zl->fp = fopen (zl->filename, "a"); |
758 | save_errno = errno; | |
759 | umask(oldumask); | |
760 | if (zl->fp == NULL) | |
aa593d5e | 761 | { |
274a4a44 | 762 | zlog_err("Log rotate failed: cannot open file %s for append: %s", |
763 | zl->filename, safe_strerror(save_errno)); | |
aa593d5e | 764 | return -1; |
765 | } | |
c4c7d0c4 | 766 | logfile_fd = fileno(zl->fp); |
274a4a44 | 767 | zl->maxlvl[ZLOG_DEST_FILE] = level; |
718e3744 | 768 | } |
769 | ||
770 | return 1; | |
771 | } | |
6b0655a2 | 772 | |
718e3744 | 773 | /* Message lookup function. */ |
8c328f11 | 774 | const char * |
1423c809 | 775 | lookup (const struct message *mes, int key) |
718e3744 | 776 | { |
1423c809 | 777 | const struct message *pnt; |
718e3744 | 778 | |
779 | for (pnt = mes; pnt->key != 0; pnt++) | |
780 | if (pnt->key == key) | |
781 | return pnt->str; | |
782 | ||
783 | return ""; | |
784 | } | |
785 | ||
afb88a66 | 786 | /* Older/faster version of message lookup function, but requires caller to pass |
11486b52 PJ |
787 | * in the array size (instead of relying on a 0 key to terminate the search). |
788 | * | |
789 | * The return value is the message string if found, or the 'none' pointer | |
790 | * provided otherwise. | |
791 | */ | |
8c328f11 | 792 | const char * |
51abba50 DT |
793 | mes_lookup (const struct message *meslist, int max, int index, |
794 | const char *none, const char *mesname) | |
718e3744 | 795 | { |
11486b52 PJ |
796 | int pos = index - meslist[0].key; |
797 | ||
afb88a66 | 798 | /* first check for best case: index is in range and matches the key |
11486b52 PJ |
799 | * value in that slot. |
800 | * NB: key numbering might be offset from 0. E.g. protocol constants | |
801 | * often start at 1. | |
802 | */ | |
803 | if ((pos >= 0) && (pos < max) | |
804 | && (meslist[pos].key == index)) | |
805 | return meslist[pos].str; | |
afb88a66 AS |
806 | |
807 | /* fall back to linear search */ | |
808 | { | |
809 | int i; | |
810 | ||
811 | for (i = 0; i < max; i++, meslist++) | |
812 | { | |
813 | if (meslist->key == index) | |
814 | { | |
11486b52 PJ |
815 | const char *str = (meslist->str ? meslist->str : none); |
816 | ||
51abba50 DT |
817 | zlog_debug ("message index %d [%s] found in %s at position %d (max is %d)", |
818 | index, str, mesname, i, max); | |
11486b52 | 819 | return str; |
afb88a66 AS |
820 | } |
821 | } | |
822 | } | |
51abba50 | 823 | zlog_err("message index %d not found in %s (max is %d)", index, mesname, max); |
11486b52 PJ |
824 | assert (none); |
825 | return none; | |
718e3744 | 826 | } |
ca359769 | 827 | |
828 | /* Wrapper around strerror to handle case where it returns NULL. */ | |
829 | const char * | |
830 | safe_strerror(int errnum) | |
831 | { | |
832 | const char *s = strerror(errnum); | |
833 | return (s != NULL) ? s : "Unknown error"; | |
834 | } | |
f52d13cb | 835 | |
d6d672aa PJ |
836 | #define DESC_ENTRY(T) [(T)] = { (T), (#T), '\0' } |
837 | static const struct zebra_desc_table command_types[] = { | |
838 | DESC_ENTRY (ZEBRA_INTERFACE_ADD), | |
839 | DESC_ENTRY (ZEBRA_INTERFACE_DELETE), | |
840 | DESC_ENTRY (ZEBRA_INTERFACE_ADDRESS_ADD), | |
841 | DESC_ENTRY (ZEBRA_INTERFACE_ADDRESS_DELETE), | |
842 | DESC_ENTRY (ZEBRA_INTERFACE_UP), | |
843 | DESC_ENTRY (ZEBRA_INTERFACE_DOWN), | |
844 | DESC_ENTRY (ZEBRA_IPV4_ROUTE_ADD), | |
845 | DESC_ENTRY (ZEBRA_IPV4_ROUTE_DELETE), | |
846 | DESC_ENTRY (ZEBRA_IPV6_ROUTE_ADD), | |
847 | DESC_ENTRY (ZEBRA_IPV6_ROUTE_DELETE), | |
848 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_ADD), | |
849 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_DELETE), | |
850 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_DEFAULT_ADD), | |
851 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_DEFAULT_DELETE), | |
852 | DESC_ENTRY (ZEBRA_IPV4_NEXTHOP_LOOKUP), | |
853 | DESC_ENTRY (ZEBRA_IPV6_NEXTHOP_LOOKUP), | |
854 | DESC_ENTRY (ZEBRA_IPV4_IMPORT_LOOKUP), | |
855 | DESC_ENTRY (ZEBRA_IPV6_IMPORT_LOOKUP), | |
856 | DESC_ENTRY (ZEBRA_INTERFACE_RENAME), | |
857 | DESC_ENTRY (ZEBRA_ROUTER_ID_ADD), | |
858 | DESC_ENTRY (ZEBRA_ROUTER_ID_DELETE), | |
859 | DESC_ENTRY (ZEBRA_ROUTER_ID_UPDATE), | |
4c78376f | 860 | DESC_ENTRY (ZEBRA_HELLO), |
fb018d25 DS |
861 | DESC_ENTRY (ZEBRA_NEXTHOP_REGISTER), |
862 | DESC_ENTRY (ZEBRA_NEXTHOP_UNREGISTER), | |
863 | DESC_ENTRY (ZEBRA_NEXTHOP_UPDATE), | |
a7f6b2e2 | 864 | DESC_ENTRY (ZEBRA_INTERFACE_NBR_ADDRESS_ADD), |
865 | DESC_ENTRY (ZEBRA_INTERFACE_NBR_ADDRESS_DELETE), | |
866 | DESC_ENTRY (ZEBRA_INTERFACE_BFD_DEST_UPDATE), | |
867 | DESC_ENTRY (ZEBRA_IMPORT_ROUTE_REGISTER), | |
868 | DESC_ENTRY (ZEBRA_IMPORT_ROUTE_UNREGISTER), | |
078430f6 | 869 | DESC_ENTRY (ZEBRA_IMPORT_CHECK_UPDATE), |
a7f6b2e2 | 870 | DESC_ENTRY (ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD), |
871 | DESC_ENTRY (ZEBRA_BFD_DEST_REGISTER), | |
872 | DESC_ENTRY (ZEBRA_BFD_DEST_DEREGISTER), | |
873 | DESC_ENTRY (ZEBRA_BFD_DEST_UPDATE), | |
874 | DESC_ENTRY (ZEBRA_BFD_DEST_REPLAY), | |
875 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_IPV4_ADD), | |
876 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_IPV4_DEL), | |
877 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_IPV6_ADD), | |
c8e264b6 | 878 | DESC_ENTRY (ZEBRA_REDISTRIBUTE_IPV6_DEL), |
055c4dfc | 879 | DESC_ENTRY (ZEBRA_INTERFACE_VRF_UPDATE), |
4a04e5f7 | 880 | DESC_ENTRY (ZEBRA_BFD_CLIENT_REGISTER), |
881 | DESC_ENTRY (ZEBRA_INTERFACE_ENABLE_RADV), | |
882 | DESC_ENTRY (ZEBRA_INTERFACE_DISABLE_RADV) | |
d6d672aa PJ |
883 | }; |
884 | #undef DESC_ENTRY | |
885 | ||
886 | static const struct zebra_desc_table unknown = { 0, "unknown", '?' }; | |
887 | ||
888 | static const struct zebra_desc_table * | |
f52d13cb | 889 | zroute_lookup(u_int zroute) |
890 | { | |
f52d13cb | 891 | u_int i; |
892 | ||
837d16cc | 893 | if (zroute >= array_size(route_types)) |
f52d13cb | 894 | { |
895 | zlog_err("unknown zebra route type: %u", zroute); | |
896 | return &unknown; | |
897 | } | |
d6d672aa | 898 | if (zroute == route_types[zroute].type) |
f52d13cb | 899 | return &route_types[zroute]; |
837d16cc | 900 | for (i = 0; i < array_size(route_types); i++) |
f52d13cb | 901 | { |
d6d672aa | 902 | if (zroute == route_types[i].type) |
f52d13cb | 903 | { |
904 | zlog_warn("internal error: route type table out of order " | |
905 | "while searching for %u, please notify developers", zroute); | |
906 | return &route_types[i]; | |
907 | } | |
908 | } | |
909 | zlog_err("internal error: cannot find route type %u in table!", zroute); | |
910 | return &unknown; | |
911 | } | |
912 | ||
913 | const char * | |
914 | zebra_route_string(u_int zroute) | |
915 | { | |
916 | return zroute_lookup(zroute)->string; | |
917 | } | |
918 | ||
919 | char | |
920 | zebra_route_char(u_int zroute) | |
921 | { | |
922 | return zroute_lookup(zroute)->chr; | |
923 | } | |
d6d672aa PJ |
924 | |
925 | const char * | |
926 | zserv_command_string (unsigned int command) | |
927 | { | |
837d16cc | 928 | if (command >= array_size(command_types)) |
d6d672aa PJ |
929 | { |
930 | zlog_err ("unknown zserv command type: %u", command); | |
931 | return unknown.string; | |
932 | } | |
933 | return command_types[command].string; | |
934 | } | |
7514fb77 | 935 | |
7514fb77 PJ |
936 | int |
937 | proto_name2num(const char *s) | |
938 | { | |
939 | unsigned i; | |
940 | ||
837d16cc | 941 | for (i=0; i<array_size(route_types); ++i) |
7514fb77 PJ |
942 | if (strcasecmp(s, route_types[i].string) == 0) |
943 | return route_types[i].type; | |
944 | return -1; | |
945 | } | |
e0ca5fde | 946 | |
e0ca5fde DL |
947 | int |
948 | proto_redistnum(int afi, const char *s) | |
949 | { | |
950 | if (! s) | |
951 | return -1; | |
952 | ||
953 | if (afi == AFI_IP) | |
954 | { | |
955 | if (strncmp (s, "k", 1) == 0) | |
956 | return ZEBRA_ROUTE_KERNEL; | |
957 | else if (strncmp (s, "c", 1) == 0) | |
958 | return ZEBRA_ROUTE_CONNECT; | |
959 | else if (strncmp (s, "s", 1) == 0) | |
960 | return ZEBRA_ROUTE_STATIC; | |
961 | else if (strncmp (s, "r", 1) == 0) | |
962 | return ZEBRA_ROUTE_RIP; | |
963 | else if (strncmp (s, "o", 1) == 0) | |
964 | return ZEBRA_ROUTE_OSPF; | |
965 | else if (strncmp (s, "i", 1) == 0) | |
966 | return ZEBRA_ROUTE_ISIS; | |
f8a246d6 | 967 | else if (strncmp (s, "bg", 2) == 0) |
e0ca5fde | 968 | return ZEBRA_ROUTE_BGP; |
a48f437a | 969 | else if (strncmp (s, "ta", 2) == 0) |
7a4bb9c5 | 970 | return ZEBRA_ROUTE_TABLE; |
e0ca5fde DL |
971 | } |
972 | if (afi == AFI_IP6) | |
973 | { | |
974 | if (strncmp (s, "k", 1) == 0) | |
975 | return ZEBRA_ROUTE_KERNEL; | |
976 | else if (strncmp (s, "c", 1) == 0) | |
977 | return ZEBRA_ROUTE_CONNECT; | |
978 | else if (strncmp (s, "s", 1) == 0) | |
979 | return ZEBRA_ROUTE_STATIC; | |
980 | else if (strncmp (s, "r", 1) == 0) | |
981 | return ZEBRA_ROUTE_RIPNG; | |
982 | else if (strncmp (s, "o", 1) == 0) | |
983 | return ZEBRA_ROUTE_OSPF6; | |
984 | else if (strncmp (s, "i", 1) == 0) | |
985 | return ZEBRA_ROUTE_ISIS; | |
f8a246d6 | 986 | else if (strncmp (s, "bg", 2) == 0) |
e0ca5fde | 987 | return ZEBRA_ROUTE_BGP; |
a48f437a | 988 | else if (strncmp (s, "ta", 2) == 0) |
7a4bb9c5 | 989 | return ZEBRA_ROUTE_TABLE; |
e0ca5fde DL |
990 | } |
991 | return -1; | |
992 | } | |
99a6c6cd DW |
993 | |
994 | void | |
a9b5cbe5 | 995 | zlog_hexdump (const void *mem, unsigned int len) { |
99a6c6cd DW |
996 | unsigned long i = 0; |
997 | unsigned int j = 0; | |
998 | unsigned int columns = 8; | |
999 | char buf[(len * 4) + ((len/4) * 20) + 30]; | |
1000 | char *s = buf; | |
1001 | ||
1002 | for (i = 0; i < len + ((len % columns) ? (columns - len % columns) : 0); i++) | |
1003 | { | |
1004 | /* print offset */ | |
1005 | if (i % columns == 0) | |
1006 | s += sprintf(s, "0x%016lx: ", (unsigned long)mem + i); | |
1007 | ||
1008 | /* print hex data */ | |
1009 | if (i < len) | |
a9b5cbe5 | 1010 | s += sprintf(s, "%02x ", 0xFF & ((const char*)mem)[i]); |
99a6c6cd DW |
1011 | |
1012 | /* end of block, just aligning for ASCII dump */ | |
1013 | else | |
1014 | s += sprintf(s, " "); | |
1015 | ||
1016 | /* print ASCII dump */ | |
1017 | if (i % columns == (columns - 1)) | |
1018 | { | |
1019 | for (j = i - (columns - 1); j <= i; j++) | |
1020 | { | |
1021 | if (j >= len) /* end of block, not really printing */ | |
1022 | s += sprintf(s, " "); | |
1023 | ||
a9b5cbe5 DS |
1024 | else if(isprint((int)((const char *)mem)[j])) /* printable char */ |
1025 | s += sprintf(s, "%c", 0xFF & ((const char *)mem)[j]); | |
99a6c6cd DW |
1026 | |
1027 | else /* other char */ | |
1028 | s += sprintf(s, "."); | |
1029 | } | |
1030 | s += sprintf(s, "\n"); | |
1031 | } | |
1032 | } | |
1033 | zlog_debug("\n%s", buf); | |
1034 | } |