]>
Commit | Line | Data |
---|---|---|
5de0409e ZJS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Zbigniew Jędrzejewski-Szmek | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
a9cdc94f | 22 | #include <locale.h> |
5de0409e ZJS |
23 | #include <stdio.h> |
24 | #include <string.h> | |
25 | #include <getopt.h> | |
ada45c78 LP |
26 | #include <fcntl.h> |
27 | #include <unistd.h> | |
5de0409e | 28 | |
2cf4172a | 29 | #include "sd-journal.h" |
5de0409e ZJS |
30 | #include "build.h" |
31 | #include "set.h" | |
32 | #include "util.h" | |
33 | #include "log.h" | |
34 | #include "path-util.h" | |
35 | #include "pager.h" | |
763c7aa2 | 36 | #include "macro.h" |
dfb33a97 | 37 | #include "journal-internal.h" |
9fe13294 | 38 | #include "compress.h" |
2cf4172a | 39 | #include "sigbus.h" |
0b452006 | 40 | #include "process-util.h" |
288a74cc | 41 | #include "terminal-util.h" |
24882e06 | 42 | #include "signal-util.h" |
5de0409e ZJS |
43 | |
44 | static enum { | |
45 | ACTION_NONE, | |
e15758cc | 46 | ACTION_INFO, |
5de0409e ZJS |
47 | ACTION_LIST, |
48 | ACTION_DUMP, | |
ada45c78 | 49 | ACTION_GDB, |
5de0409e | 50 | } arg_action = ACTION_LIST; |
e15758cc | 51 | static const char* arg_field = NULL; |
b73e9a02 | 52 | static const char *arg_directory = NULL; |
ccc40358 | 53 | static int arg_no_pager = false; |
9a340880 | 54 | static int arg_no_legend = false; |
0c51aada | 55 | static int arg_one = false; |
3774cf57 | 56 | static FILE* arg_output = NULL; |
5de0409e ZJS |
57 | |
58 | static Set *new_matches(void) { | |
59 | Set *set; | |
60 | char *tmp; | |
61 | int r; | |
62 | ||
d5099efc | 63 | set = set_new(NULL); |
5de0409e ZJS |
64 | if (!set) { |
65 | log_oom(); | |
66 | return NULL; | |
67 | } | |
68 | ||
69 | tmp = strdup("MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1"); | |
70 | if (!tmp) { | |
71 | log_oom(); | |
4a207bb2 | 72 | set_free(set); |
5de0409e ZJS |
73 | return NULL; |
74 | } | |
75 | ||
ef42202a | 76 | r = set_consume(set, tmp); |
5de0409e | 77 | if (r < 0) { |
da927ba9 | 78 | log_error_errno(r, "failed to add to set: %m"); |
4a207bb2 | 79 | set_free(set); |
5de0409e ZJS |
80 | return NULL; |
81 | } | |
82 | ||
83 | return set; | |
84 | } | |
85 | ||
5de0409e ZJS |
86 | static int add_match(Set *set, const char *match) { |
87 | int r = -ENOMEM; | |
88 | unsigned pid; | |
89 | const char* prefix; | |
90 | char *pattern = NULL; | |
7fd1b19b | 91 | _cleanup_free_ char *p = NULL; |
5de0409e ZJS |
92 | |
93 | if (strchr(match, '=')) | |
94 | prefix = ""; | |
95 | else if (strchr(match, '/')) { | |
96 | p = path_make_absolute_cwd(match); | |
97 | if (!p) | |
98 | goto fail; | |
99 | ||
100 | match = p; | |
101 | prefix = "COREDUMP_EXE="; | |
102 | } | |
103 | else if (safe_atou(match, &pid) == 0) | |
104 | prefix = "COREDUMP_PID="; | |
105 | else | |
106 | prefix = "COREDUMP_COMM="; | |
107 | ||
108 | pattern = strjoin(prefix, match, NULL); | |
109 | if (!pattern) | |
110 | goto fail; | |
111 | ||
ef42202a | 112 | log_debug("Adding pattern: %s", pattern); |
f7a5bb28 | 113 | r = set_consume(set, pattern); |
5de0409e | 114 | if (r < 0) { |
da927ba9 | 115 | log_error_errno(r, "Failed to add pattern: %m"); |
5de0409e ZJS |
116 | goto fail; |
117 | } | |
5de0409e ZJS |
118 | |
119 | return 0; | |
120 | fail: | |
23bbb0de | 121 | return log_error_errno(r, "Failed to add match: %m"); |
5de0409e ZJS |
122 | } |
123 | ||
601185b4 ZJS |
124 | static void help(void) { |
125 | printf("%s [OPTIONS...]\n\n" | |
126 | "List or retrieve coredumps from the journal.\n\n" | |
127 | "Flags:\n" | |
128 | " -h --help Show this help\n" | |
129 | " --version Print version string\n" | |
130 | " --no-pager Do not pipe output into a pager\n" | |
131 | " --no-legend Do not print the column headers.\n" | |
132 | " -1 Show information about most recent entry only\n" | |
133 | " -F --field=FIELD List all values a certain field takes\n" | |
134 | " -o --output=FILE Write output to FILE\n\n" | |
b73e9a02 | 135 | " -D --directory=DIR Use journal files from directory\n\n" |
601185b4 ZJS |
136 | |
137 | "Commands:\n" | |
138 | " list [MATCHES...] List available coredumps (default)\n" | |
139 | " info [MATCHES...] Show detailed information about one or more coredumps\n" | |
140 | " dump [MATCHES...] Print first matching coredump to stdout\n" | |
141 | " gdb [MATCHES...] Start gdb for the first matching coredump\n" | |
142 | , program_invocation_short_name); | |
143 | } | |
144 | ||
763c7aa2 | 145 | static int parse_argv(int argc, char *argv[], Set *matches) { |
5de0409e ZJS |
146 | enum { |
147 | ARG_VERSION = 0x100, | |
148 | ARG_NO_PAGER, | |
9a340880 | 149 | ARG_NO_LEGEND, |
5de0409e ZJS |
150 | }; |
151 | ||
152 | int r, c; | |
153 | ||
154 | static const struct option options[] = { | |
57ce4bd4 ZJS |
155 | { "help", no_argument, NULL, 'h' }, |
156 | { "version" , no_argument, NULL, ARG_VERSION }, | |
157 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
9a340880 | 158 | { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, |
57ce4bd4 | 159 | { "output", required_argument, NULL, 'o' }, |
4f76ae1b | 160 | { "field", required_argument, NULL, 'F' }, |
b73e9a02 | 161 | { "directory", required_argument, NULL, 'D' }, |
eb9da376 | 162 | {} |
5de0409e ZJS |
163 | }; |
164 | ||
165 | assert(argc >= 0); | |
166 | assert(argv); | |
167 | ||
b73e9a02 | 168 | while ((c = getopt_long(argc, argv, "ho:F:1D:", options, NULL)) >= 0) |
5de0409e | 169 | switch(c) { |
eb9da376 | 170 | |
5de0409e | 171 | case 'h': |
5de0409e | 172 | arg_action = ACTION_NONE; |
601185b4 ZJS |
173 | help(); |
174 | return 0; | |
5de0409e ZJS |
175 | |
176 | case ARG_VERSION: | |
eb9da376 | 177 | arg_action = ACTION_NONE; |
5de0409e | 178 | puts(PACKAGE_STRING); |
5de0409e | 179 | puts(SYSTEMD_FEATURES); |
5de0409e ZJS |
180 | return 0; |
181 | ||
182 | case ARG_NO_PAGER: | |
183 | arg_no_pager = true; | |
184 | break; | |
185 | ||
9a340880 ZJS |
186 | case ARG_NO_LEGEND: |
187 | arg_no_legend = true; | |
188 | break; | |
189 | ||
5de0409e | 190 | case 'o': |
3774cf57 | 191 | if (arg_output) { |
5de0409e ZJS |
192 | log_error("cannot set output more than once"); |
193 | return -EINVAL; | |
194 | } | |
195 | ||
3774cf57 LP |
196 | arg_output = fopen(optarg, "we"); |
197 | if (!arg_output) | |
4a62c710 | 198 | return log_error_errno(errno, "writing to '%s': %m", optarg); |
5de0409e ZJS |
199 | |
200 | break; | |
57ce4bd4 | 201 | |
4f76ae1b | 202 | case 'F': |
a276ae74 | 203 | if (arg_field) { |
4f76ae1b ZJS |
204 | log_error("cannot use --field/-F more than once"); |
205 | return -EINVAL; | |
206 | } | |
a276ae74 | 207 | arg_field = optarg; |
4f76ae1b ZJS |
208 | break; |
209 | ||
0c51aada LP |
210 | case '1': |
211 | arg_one = true; | |
212 | break; | |
213 | ||
b73e9a02 SW |
214 | case 'D': |
215 | arg_directory = optarg; | |
216 | break; | |
217 | ||
57ce4bd4 ZJS |
218 | case '?': |
219 | return -EINVAL; | |
220 | ||
5de0409e | 221 | default: |
eb9da376 | 222 | assert_not_reached("Unhandled option"); |
5de0409e ZJS |
223 | } |
224 | ||
225 | if (optind < argc) { | |
226 | const char *cmd = argv[optind++]; | |
f168c273 | 227 | if (streq(cmd, "list")) |
5de0409e ZJS |
228 | arg_action = ACTION_LIST; |
229 | else if (streq(cmd, "dump")) | |
230 | arg_action = ACTION_DUMP; | |
ada45c78 LP |
231 | else if (streq(cmd, "gdb")) |
232 | arg_action = ACTION_GDB; | |
e15758cc LP |
233 | else if (streq(cmd, "info")) |
234 | arg_action = ACTION_INFO; | |
5de0409e ZJS |
235 | else { |
236 | log_error("Unknown action '%s'", cmd); | |
237 | return -EINVAL; | |
238 | } | |
239 | } | |
240 | ||
a276ae74 | 241 | if (arg_field && arg_action != ACTION_LIST) { |
4f76ae1b ZJS |
242 | log_error("Option --field/-F only makes sense with list"); |
243 | return -EINVAL; | |
244 | } | |
245 | ||
5de0409e ZJS |
246 | while (optind < argc) { |
247 | r = add_match(matches, argv[optind]); | |
248 | if (r != 0) | |
249 | return r; | |
250 | optind++; | |
251 | } | |
252 | ||
253 | return 0; | |
254 | } | |
255 | ||
8bc8ab83 LP |
256 | static int retrieve(const void *data, |
257 | size_t len, | |
258 | const char *name, | |
a276ae74 | 259 | char **var) { |
5de0409e | 260 | |
4f76ae1b | 261 | size_t ident; |
a276ae74 | 262 | char *v; |
8bc8ab83 | 263 | |
4f76ae1b | 264 | ident = strlen(name) + 1; /* name + "=" */ |
8bc8ab83 | 265 | |
4f76ae1b | 266 | if (len < ident) |
8bc8ab83 | 267 | return 0; |
5de0409e | 268 | |
4f76ae1b | 269 | if (memcmp(data, name, ident - 1) != 0) |
8bc8ab83 LP |
270 | return 0; |
271 | ||
4f76ae1b | 272 | if (((const char*) data)[ident - 1] != '=') |
8bc8ab83 | 273 | return 0; |
5de0409e | 274 | |
a276ae74 LP |
275 | v = strndup((const char*)data + ident, len - ident); |
276 | if (!v) | |
5de0409e ZJS |
277 | return log_oom(); |
278 | ||
a276ae74 LP |
279 | free(*var); |
280 | *var = v; | |
281 | ||
5de0409e ZJS |
282 | return 0; |
283 | } | |
284 | ||
4f76ae1b | 285 | static void print_field(FILE* file, sd_journal *j) { |
a276ae74 | 286 | _cleanup_free_ char *value = NULL; |
4f76ae1b ZJS |
287 | const void *d; |
288 | size_t l; | |
289 | ||
e15758cc LP |
290 | assert(file); |
291 | assert(j); | |
292 | ||
a276ae74 | 293 | assert(arg_field); |
4f76ae1b ZJS |
294 | |
295 | SD_JOURNAL_FOREACH_DATA(j, d, l) | |
a276ae74 LP |
296 | retrieve(d, l, arg_field, &value); |
297 | ||
4f76ae1b ZJS |
298 | if (value) |
299 | fprintf(file, "%s\n", value); | |
300 | } | |
301 | ||
e15758cc | 302 | static int print_list(FILE* file, sd_journal *j, int had_legend) { |
a276ae74 | 303 | _cleanup_free_ char |
5de0409e | 304 | *pid = NULL, *uid = NULL, *gid = NULL, |
9fe13294 ZJS |
305 | *sgnl = NULL, *exe = NULL, *comm = NULL, *cmdline = NULL, |
306 | *filename = NULL; | |
8bc8ab83 LP |
307 | const void *d; |
308 | size_t l; | |
684341b0 LP |
309 | usec_t t; |
310 | char buf[FORMAT_TIMESTAMP_MAX]; | |
311 | int r; | |
9fe13294 | 312 | bool present; |
8bc8ab83 | 313 | |
e15758cc LP |
314 | assert(file); |
315 | assert(j); | |
316 | ||
8bc8ab83 | 317 | SD_JOURNAL_FOREACH_DATA(j, d, l) { |
8bc8ab83 LP |
318 | retrieve(d, l, "COREDUMP_PID", &pid); |
319 | retrieve(d, l, "COREDUMP_UID", &uid); | |
320 | retrieve(d, l, "COREDUMP_GID", &gid); | |
321 | retrieve(d, l, "COREDUMP_SIGNAL", &sgnl); | |
322 | retrieve(d, l, "COREDUMP_EXE", &exe); | |
a276ae74 LP |
323 | retrieve(d, l, "COREDUMP_COMM", &comm); |
324 | retrieve(d, l, "COREDUMP_CMDLINE", &cmdline); | |
9fe13294 | 325 | retrieve(d, l, "COREDUMP_FILENAME", &filename); |
8bc8ab83 | 326 | } |
5de0409e | 327 | |
9fe13294 | 328 | if (!pid && !uid && !gid && !sgnl && !exe && !comm && !cmdline && !filename) { |
684341b0 LP |
329 | log_warning("Empty coredump log entry"); |
330 | return -EINVAL; | |
331 | } | |
332 | ||
333 | r = sd_journal_get_realtime_usec(j, &t); | |
23bbb0de MS |
334 | if (r < 0) |
335 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
5de0409e | 336 | |
684341b0 | 337 | format_timestamp(buf, sizeof(buf), t); |
9fe13294 | 338 | present = filename && access(filename, F_OK) == 0; |
684341b0 | 339 | |
9a340880 | 340 | if (!had_legend && !arg_no_legend) |
9fe13294 | 341 | fprintf(file, "%-*s %*s %*s %*s %*s %*s %s\n", |
c3f84106 | 342 | FORMAT_TIMESTAMP_WIDTH, "TIME", |
5de0409e ZJS |
343 | 6, "PID", |
344 | 5, "UID", | |
345 | 5, "GID", | |
684341b0 | 346 | 3, "SIG", |
9fe13294 | 347 | 1, "PRESENT", |
684341b0 | 348 | "EXE"); |
5de0409e | 349 | |
9fe13294 | 350 | fprintf(file, "%-*s %*s %*s %*s %*s %*s %s\n", |
c3f84106 | 351 | FORMAT_TIMESTAMP_WIDTH, buf, |
a276ae74 LP |
352 | 6, strna(pid), |
353 | 5, strna(uid), | |
354 | 5, strna(gid), | |
355 | 3, strna(sgnl), | |
9fe13294 | 356 | 1, present ? "*" : "", |
a276ae74 | 357 | strna(exe ?: (comm ?: cmdline))); |
684341b0 LP |
358 | |
359 | return 0; | |
5de0409e ZJS |
360 | } |
361 | ||
e15758cc LP |
362 | static int print_info(FILE *file, sd_journal *j, bool need_space) { |
363 | _cleanup_free_ char | |
364 | *pid = NULL, *uid = NULL, *gid = NULL, | |
365 | *sgnl = NULL, *exe = NULL, *comm = NULL, *cmdline = NULL, | |
366 | *unit = NULL, *user_unit = NULL, *session = NULL, | |
a035f819 | 367 | *boot_id = NULL, *machine_id = NULL, *hostname = NULL, |
9fe13294 ZJS |
368 | *slice = NULL, *cgroup = NULL, *owner_uid = NULL, |
369 | *message = NULL, *timestamp = NULL, *filename = NULL; | |
e15758cc LP |
370 | const void *d; |
371 | size_t l; | |
4b8cbe9a | 372 | int r; |
e15758cc LP |
373 | |
374 | assert(file); | |
375 | assert(j); | |
376 | ||
377 | SD_JOURNAL_FOREACH_DATA(j, d, l) { | |
378 | retrieve(d, l, "COREDUMP_PID", &pid); | |
379 | retrieve(d, l, "COREDUMP_UID", &uid); | |
380 | retrieve(d, l, "COREDUMP_GID", &gid); | |
381 | retrieve(d, l, "COREDUMP_SIGNAL", &sgnl); | |
382 | retrieve(d, l, "COREDUMP_EXE", &exe); | |
383 | retrieve(d, l, "COREDUMP_COMM", &comm); | |
384 | retrieve(d, l, "COREDUMP_CMDLINE", &cmdline); | |
385 | retrieve(d, l, "COREDUMP_UNIT", &unit); | |
386 | retrieve(d, l, "COREDUMP_USER_UNIT", &user_unit); | |
387 | retrieve(d, l, "COREDUMP_SESSION", &session); | |
a035f819 LP |
388 | retrieve(d, l, "COREDUMP_OWNER_UID", &owner_uid); |
389 | retrieve(d, l, "COREDUMP_SLICE", &slice); | |
390 | retrieve(d, l, "COREDUMP_CGROUP", &cgroup); | |
4b8cbe9a | 391 | retrieve(d, l, "COREDUMP_TIMESTAMP", ×tamp); |
9fe13294 | 392 | retrieve(d, l, "COREDUMP_FILENAME", &filename); |
e15758cc LP |
393 | retrieve(d, l, "_BOOT_ID", &boot_id); |
394 | retrieve(d, l, "_MACHINE_ID", &machine_id); | |
395 | retrieve(d, l, "_HOSTNAME", &hostname); | |
8d4e028f | 396 | retrieve(d, l, "MESSAGE", &message); |
e15758cc LP |
397 | } |
398 | ||
399 | if (need_space) | |
400 | fputs("\n", file); | |
401 | ||
81cef14f LP |
402 | if (comm) |
403 | fprintf(file, | |
404 | " PID: %s%s%s (%s)\n", | |
1fc464f6 | 405 | ansi_highlight(), strna(pid), ansi_normal(), comm); |
81cef14f LP |
406 | else |
407 | fprintf(file, | |
408 | " PID: %s%s%s\n", | |
1fc464f6 | 409 | ansi_highlight(), strna(pid), ansi_normal()); |
a035f819 LP |
410 | |
411 | if (uid) { | |
412 | uid_t n; | |
413 | ||
414 | if (parse_uid(uid, &n) >= 0) { | |
415 | _cleanup_free_ char *u = NULL; | |
416 | ||
417 | u = uid_to_name(n); | |
418 | fprintf(file, | |
419 | " UID: %s (%s)\n", | |
420 | uid, u); | |
421 | } else { | |
422 | fprintf(file, | |
423 | " UID: %s\n", | |
424 | uid); | |
425 | } | |
426 | } | |
427 | ||
428 | if (gid) { | |
429 | gid_t n; | |
430 | ||
431 | if (parse_gid(gid, &n) >= 0) { | |
432 | _cleanup_free_ char *g = NULL; | |
433 | ||
434 | g = gid_to_name(n); | |
435 | fprintf(file, | |
436 | " GID: %s (%s)\n", | |
437 | gid, g); | |
438 | } else { | |
439 | fprintf(file, | |
440 | " GID: %s\n", | |
441 | gid); | |
442 | } | |
443 | } | |
e15758cc LP |
444 | |
445 | if (sgnl) { | |
446 | int sig; | |
447 | ||
448 | if (safe_atoi(sgnl, &sig) >= 0) | |
449 | fprintf(file, " Signal: %s (%s)\n", sgnl, signal_to_string(sig)); | |
450 | else | |
451 | fprintf(file, " Signal: %s\n", sgnl); | |
452 | } | |
453 | ||
4b8cbe9a LP |
454 | if (timestamp) { |
455 | usec_t u; | |
456 | ||
457 | r = safe_atou64(timestamp, &u); | |
458 | if (r >= 0) { | |
459 | char absolute[FORMAT_TIMESTAMP_MAX], relative[FORMAT_TIMESPAN_MAX]; | |
460 | ||
461 | fprintf(file, | |
462 | " Timestamp: %s (%s)\n", | |
463 | format_timestamp(absolute, sizeof(absolute), u), | |
464 | format_timestamp_relative(relative, sizeof(relative), u)); | |
465 | ||
466 | } else | |
467 | fprintf(file, " Timestamp: %s\n", timestamp); | |
468 | } | |
469 | ||
e15758cc LP |
470 | if (cmdline) |
471 | fprintf(file, " Command Line: %s\n", cmdline); | |
81cef14f | 472 | if (exe) |
1fc464f6 | 473 | fprintf(file, " Executable: %s%s%s\n", ansi_highlight(), exe, ansi_normal()); |
a035f819 LP |
474 | if (cgroup) |
475 | fprintf(file, " Control Group: %s\n", cgroup); | |
e15758cc LP |
476 | if (unit) |
477 | fprintf(file, " Unit: %s\n", unit); | |
478 | if (user_unit) | |
479 | fprintf(file, " User Unit: %s\n", unit); | |
a035f819 LP |
480 | if (slice) |
481 | fprintf(file, " Slice: %s\n", slice); | |
e15758cc LP |
482 | if (session) |
483 | fprintf(file, " Session: %s\n", session); | |
a035f819 LP |
484 | if (owner_uid) { |
485 | uid_t n; | |
486 | ||
487 | if (parse_uid(owner_uid, &n) >= 0) { | |
488 | _cleanup_free_ char *u = NULL; | |
489 | ||
490 | u = uid_to_name(n); | |
491 | fprintf(file, | |
492 | " Owner UID: %s (%s)\n", | |
493 | owner_uid, u); | |
494 | } else { | |
495 | fprintf(file, | |
496 | " Owner UID: %s\n", | |
497 | owner_uid); | |
498 | } | |
499 | } | |
e15758cc LP |
500 | if (boot_id) |
501 | fprintf(file, " Boot ID: %s\n", boot_id); | |
502 | if (machine_id) | |
503 | fprintf(file, " Machine ID: %s\n", machine_id); | |
504 | if (hostname) | |
505 | fprintf(file, " Hostname: %s\n", hostname); | |
506 | ||
9fe13294 ZJS |
507 | if (filename && access(filename, F_OK) == 0) |
508 | fprintf(file, " Coredump: %s\n", filename); | |
e15758cc | 509 | |
8d4e028f LP |
510 | if (message) { |
511 | _cleanup_free_ char *m = NULL; | |
512 | ||
513 | m = strreplace(message, "\n", "\n "); | |
514 | ||
515 | fprintf(file, " Message: %s\n", strstrip(m ?: message)); | |
516 | } | |
517 | ||
e15758cc LP |
518 | return 0; |
519 | } | |
520 | ||
ada45c78 | 521 | static int focus(sd_journal *j) { |
5de0409e ZJS |
522 | int r; |
523 | ||
5de0409e ZJS |
524 | r = sd_journal_seek_tail(j); |
525 | if (r == 0) | |
526 | r = sd_journal_previous(j); | |
23bbb0de MS |
527 | if (r < 0) |
528 | return log_error_errno(r, "Failed to search journal: %m"); | |
8bc8ab83 | 529 | if (r == 0) { |
0c51aada | 530 | log_error("No match found."); |
8bc8ab83 LP |
531 | return -ESRCH; |
532 | } | |
ada45c78 LP |
533 | return r; |
534 | } | |
5de0409e | 535 | |
0c51aada LP |
536 | static void print_entry(sd_journal *j, unsigned n_found) { |
537 | assert(j); | |
538 | ||
539 | if (arg_action == ACTION_INFO) | |
540 | print_info(stdout, j, n_found); | |
541 | else if (arg_field) | |
542 | print_field(stdout, j); | |
543 | else | |
544 | print_list(stdout, j, n_found); | |
545 | } | |
546 | ||
547 | static int dump_list(sd_journal *j) { | |
548 | unsigned n_found = 0; | |
549 | int r; | |
550 | ||
551 | assert(j); | |
552 | ||
553 | /* The coredumps are likely to compressed, and for just | |
554 | * listing them we don't need to decompress them, so let's | |
555 | * pick a fairly low data threshold here */ | |
556 | sd_journal_set_data_threshold(j, 4096); | |
557 | ||
558 | if (arg_one) { | |
559 | r = focus(j); | |
560 | if (r < 0) | |
561 | return r; | |
562 | ||
563 | print_entry(j, 0); | |
564 | } else { | |
565 | SD_JOURNAL_FOREACH(j) | |
566 | print_entry(j, n_found++); | |
567 | ||
568 | if (!arg_field && n_found <= 0) { | |
569 | log_notice("No coredumps found."); | |
570 | return -ESRCH; | |
571 | } | |
572 | } | |
573 | ||
574 | return 0; | |
575 | } | |
576 | ||
9fe13294 ZJS |
577 | static int save_core(sd_journal *j, int fd, char **path, bool *unlink_temp) { |
578 | const char *data; | |
579 | _cleanup_free_ char *filename = NULL; | |
580 | size_t len; | |
ada45c78 LP |
581 | int r; |
582 | ||
9fe13294 ZJS |
583 | assert((fd >= 0) != !!path); |
584 | assert(!!path == !!unlink_temp); | |
ada45c78 | 585 | |
9fe13294 ZJS |
586 | /* Prefer uncompressed file to journal (probably cached) to |
587 | * compressed file (probably uncached). */ | |
588 | r = sd_journal_get_data(j, "COREDUMP_FILENAME", (const void**) &data, &len); | |
589 | if (r < 0 && r != -ENOENT) | |
da927ba9 | 590 | log_warning_errno(r, "Failed to retrieve COREDUMP_FILENAME: %m"); |
9fe13294 ZJS |
591 | else if (r == 0) |
592 | retrieve(data, len, "COREDUMP_FILENAME", &filename); | |
93b73b06 | 593 | |
9fe13294 | 594 | if (filename && access(filename, R_OK) < 0) { |
31cda3d1 ZJS |
595 | log_full(errno == ENOENT ? LOG_DEBUG : LOG_WARNING, |
596 | "File %s is not readable: %m", filename); | |
97b11eed | 597 | filename = mfree(filename); |
5de0409e ZJS |
598 | } |
599 | ||
d89c8fdf | 600 | if (filename && !endswith(filename, ".xz") && !endswith(filename, ".lz4")) { |
d0c8806d TA |
601 | if (path) { |
602 | *path = filename; | |
603 | filename = NULL; | |
604 | } | |
a276ae74 | 605 | |
9fe13294 ZJS |
606 | return 0; |
607 | } else { | |
608 | _cleanup_close_ int fdt = -1; | |
609 | char *temp = NULL; | |
a276ae74 | 610 | |
a276ae74 | 611 | if (fd < 0) { |
9fe13294 ZJS |
612 | temp = strdup("/var/tmp/coredump-XXXXXX"); |
613 | if (!temp) | |
614 | return log_oom(); | |
615 | ||
616 | fdt = mkostemp_safe(temp, O_WRONLY|O_CLOEXEC); | |
4a62c710 MS |
617 | if (fdt < 0) |
618 | return log_error_errno(errno, "Failed to create temporary file: %m"); | |
9fe13294 ZJS |
619 | log_debug("Created temporary file %s", temp); |
620 | ||
621 | fd = fdt; | |
622 | } | |
623 | ||
624 | r = sd_journal_get_data(j, "COREDUMP", (const void**) &data, &len); | |
625 | if (r == 0) { | |
626 | ssize_t sz; | |
627 | ||
628 | assert(len >= 9); | |
629 | data += 9; | |
630 | len -= 9; | |
631 | ||
632 | sz = write(fdt, data, len); | |
633 | if (sz < 0) { | |
76ef789d LP |
634 | r = log_error_errno(errno, |
635 | "Failed to write temporary file: %m"); | |
9fe13294 ZJS |
636 | goto error; |
637 | } | |
638 | if (sz != (ssize_t) len) { | |
639 | log_error("Short write to temporary file."); | |
640 | r = -EIO; | |
641 | goto error; | |
642 | } | |
643 | } else if (filename) { | |
d89c8fdf | 644 | #if defined(HAVE_XZ) || defined(HAVE_LZ4) |
9fe13294 ZJS |
645 | _cleanup_close_ int fdf; |
646 | ||
647 | fdf = open(filename, O_RDONLY | O_CLOEXEC); | |
648 | if (fdf < 0) { | |
94c156cd LP |
649 | r = log_error_errno(errno, |
650 | "Failed to open %s: %m", | |
651 | filename); | |
9fe13294 ZJS |
652 | goto error; |
653 | } | |
654 | ||
d89c8fdf | 655 | r = decompress_stream(filename, fdf, fd, -1); |
9fe13294 | 656 | if (r < 0) { |
da927ba9 | 657 | log_error_errno(r, "Failed to decompress %s: %m", filename); |
9fe13294 ZJS |
658 | goto error; |
659 | } | |
2fb8159f | 660 | #else |
d89c8fdf | 661 | log_error("Cannot decompress file. Compiled without compression support."); |
15411c0c | 662 | r = -EOPNOTSUPP; |
2fb8159f DM |
663 | goto error; |
664 | #endif | |
9fe13294 ZJS |
665 | } else { |
666 | if (r == -ENOENT) | |
31cda3d1 | 667 | log_error("Cannot retrieve coredump from journal nor disk."); |
a276ae74 | 668 | else |
da927ba9 | 669 | log_error_errno(r, "Failed to retrieve COREDUMP field: %m"); |
9fe13294 ZJS |
670 | goto error; |
671 | } | |
a276ae74 | 672 | |
9fe13294 ZJS |
673 | if (temp) { |
674 | *path = temp; | |
675 | *unlink_temp = true; | |
a276ae74 LP |
676 | } |
677 | ||
9fe13294 ZJS |
678 | return 0; |
679 | ||
680 | error: | |
681 | if (temp) { | |
682 | unlink(temp); | |
683 | log_debug("Removed temporary file %s", temp); | |
a276ae74 | 684 | } |
9fe13294 ZJS |
685 | return r; |
686 | } | |
687 | } | |
a276ae74 | 688 | |
9fe13294 ZJS |
689 | static int dump_core(sd_journal* j) { |
690 | int r; | |
691 | ||
692 | assert(j); | |
693 | ||
694 | r = focus(j); | |
695 | if (r < 0) | |
ada45c78 | 696 | return r; |
ada45c78 | 697 | |
3774cf57 | 698 | print_info(arg_output ? stdout : stderr, j, false); |
9fe13294 | 699 | |
3774cf57 | 700 | if (on_tty() && !arg_output) { |
9fe13294 ZJS |
701 | log_error("Refusing to dump core to tty."); |
702 | return -ENOTTY; | |
703 | } | |
704 | ||
3774cf57 | 705 | r = save_core(j, arg_output ? fileno(arg_output) : STDOUT_FILENO, NULL, NULL); |
23bbb0de MS |
706 | if (r < 0) |
707 | return log_error_errno(r, "Coredump retrieval failed: %m"); | |
5de0409e ZJS |
708 | |
709 | r = sd_journal_previous(j); | |
710 | if (r >= 0) | |
9f6445e3 | 711 | log_warning("More than one entry matches, ignoring rest."); |
5de0409e ZJS |
712 | |
713 | return 0; | |
714 | } | |
715 | ||
ada45c78 | 716 | static int run_gdb(sd_journal *j) { |
de8f6e54 | 717 | _cleanup_free_ char *exe = NULL, *path = NULL; |
9fe13294 ZJS |
718 | bool unlink_path = false; |
719 | const char *data; | |
a276ae74 | 720 | siginfo_t st; |
ada45c78 | 721 | size_t len; |
ada45c78 | 722 | pid_t pid; |
ada45c78 | 723 | int r; |
ada45c78 LP |
724 | |
725 | assert(j); | |
726 | ||
727 | r = focus(j); | |
728 | if (r < 0) | |
729 | return r; | |
730 | ||
e15758cc LP |
731 | print_info(stdout, j, false); |
732 | fputs("\n", stdout); | |
ada45c78 LP |
733 | |
734 | r = sd_journal_get_data(j, "COREDUMP_EXE", (const void**) &data, &len); | |
23bbb0de MS |
735 | if (r < 0) |
736 | return log_error_errno(r, "Failed to retrieve COREDUMP_EXE field: %m"); | |
ada45c78 | 737 | |
9fe13294 ZJS |
738 | assert(len > strlen("COREDUMP_EXE=")); |
739 | data += strlen("COREDUMP_EXE="); | |
740 | len -= strlen("COREDUMP_EXE="); | |
ada45c78 LP |
741 | |
742 | exe = strndup(data, len); | |
743 | if (!exe) | |
744 | return log_oom(); | |
745 | ||
746 | if (endswith(exe, " (deleted)")) { | |
747 | log_error("Binary already deleted."); | |
748 | return -ENOENT; | |
749 | } | |
750 | ||
a276ae74 LP |
751 | if (!path_is_absolute(exe)) { |
752 | log_error("Binary is not an absolute path."); | |
753 | return -ENOENT; | |
754 | } | |
755 | ||
9fe13294 | 756 | r = save_core(j, -1, &path, &unlink_path); |
23bbb0de MS |
757 | if (r < 0) |
758 | return log_error_errno(r, "Failed to retrieve core: %m"); | |
ada45c78 LP |
759 | |
760 | pid = fork(); | |
761 | if (pid < 0) { | |
76ef789d | 762 | r = log_error_errno(errno, "Failed to fork(): %m"); |
ada45c78 LP |
763 | goto finish; |
764 | } | |
765 | if (pid == 0) { | |
ce30c8dc LP |
766 | (void) reset_all_signal_handlers(); |
767 | (void) reset_signal_mask(); | |
768 | ||
ada45c78 | 769 | execlp("gdb", "gdb", exe, path, NULL); |
a276ae74 | 770 | |
56f64d95 | 771 | log_error_errno(errno, "Failed to invoke gdb: %m"); |
ada45c78 LP |
772 | _exit(1); |
773 | } | |
774 | ||
775 | r = wait_for_terminate(pid, &st); | |
776 | if (r < 0) { | |
56f64d95 | 777 | log_error_errno(errno, "Failed to wait for gdb: %m"); |
ada45c78 LP |
778 | goto finish; |
779 | } | |
780 | ||
781 | r = st.si_code == CLD_EXITED ? st.si_status : 255; | |
782 | ||
783 | finish: | |
9fe13294 ZJS |
784 | if (unlink_path) { |
785 | log_debug("Removed temporary file %s", path); | |
786 | unlink(path); | |
787 | } | |
a276ae74 | 788 | |
ada45c78 LP |
789 | return r; |
790 | } | |
791 | ||
5de0409e | 792 | int main(int argc, char *argv[]) { |
7fd1b19b | 793 | _cleanup_journal_close_ sd_journal*j = NULL; |
5de0409e ZJS |
794 | const char* match; |
795 | Iterator it; | |
796 | int r = 0; | |
7fd1b19b | 797 | _cleanup_set_free_free_ Set *matches = NULL; |
5de0409e | 798 | |
a9cdc94f | 799 | setlocale(LC_ALL, ""); |
5de0409e ZJS |
800 | log_parse_environment(); |
801 | log_open(); | |
802 | ||
803 | matches = new_matches(); | |
2fb7a5ce ZJS |
804 | if (!matches) { |
805 | r = -ENOMEM; | |
5de0409e | 806 | goto end; |
2fb7a5ce | 807 | } |
5de0409e | 808 | |
763c7aa2 | 809 | r = parse_argv(argc, argv, matches); |
2fb7a5ce | 810 | if (r < 0) |
5de0409e ZJS |
811 | goto end; |
812 | ||
813 | if (arg_action == ACTION_NONE) | |
814 | goto end; | |
815 | ||
2cf4172a LP |
816 | sigbus_install(); |
817 | ||
b73e9a02 SW |
818 | if (arg_directory) { |
819 | r = sd_journal_open_directory(&j, arg_directory, 0); | |
820 | if (r < 0) { | |
821 | log_error_errno(r, "Failed to open journals in directory: %s: %m", arg_directory); | |
822 | goto end; | |
823 | } | |
824 | } else { | |
825 | r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY); | |
826 | if (r < 0) { | |
827 | log_error_errno(r, "Failed to open journal: %m"); | |
828 | goto end; | |
829 | } | |
5de0409e ZJS |
830 | } |
831 | ||
9fe13294 ZJS |
832 | /* We want full data, nothing truncated. */ |
833 | sd_journal_set_data_threshold(j, 0); | |
834 | ||
5de0409e | 835 | SET_FOREACH(match, matches, it) { |
5de0409e ZJS |
836 | r = sd_journal_add_match(j, match, strlen(match)); |
837 | if (r != 0) { | |
c33b3297 MS |
838 | log_error_errno(r, "Failed to add match '%s': %m", |
839 | match); | |
5de0409e ZJS |
840 | goto end; |
841 | } | |
842 | } | |
843 | ||
553d2243 | 844 | if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { |
6c17bf04 ZJS |
845 | _cleanup_free_ char *filter; |
846 | ||
847 | filter = journal_make_match_string(j); | |
848 | log_debug("Journal filter: %s", filter); | |
849 | } | |
850 | ||
5de0409e | 851 | switch(arg_action) { |
ada45c78 | 852 | |
5de0409e | 853 | case ACTION_LIST: |
e15758cc | 854 | case ACTION_INFO: |
5de0409e | 855 | if (!arg_no_pager) |
1b12a7b5 | 856 | pager_open(false); |
5de0409e ZJS |
857 | |
858 | r = dump_list(j); | |
859 | break; | |
ada45c78 | 860 | |
5de0409e ZJS |
861 | case ACTION_DUMP: |
862 | r = dump_core(j); | |
863 | break; | |
ada45c78 LP |
864 | |
865 | case ACTION_GDB: | |
866 | r = run_gdb(j); | |
867 | break; | |
868 | ||
869 | default: | |
5de0409e ZJS |
870 | assert_not_reached("Shouldn't be here"); |
871 | } | |
872 | ||
873 | end: | |
5de0409e ZJS |
874 | pager_close(); |
875 | ||
3774cf57 LP |
876 | if (arg_output) |
877 | fclose(arg_output); | |
5de0409e | 878 | |
ada45c78 | 879 | return r >= 0 ? r : EXIT_FAILURE; |
5de0409e | 880 | } |