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Commit | Line | Data |
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86aa7ba4 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
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 | |
86aa7ba4 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
86aa7ba4 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
86aa7ba4 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <time.h> | |
23 | #include <assert.h> | |
24 | #include <errno.h> | |
df50185b | 25 | #include <sys/poll.h> |
55d7bfc1 | 26 | #include <string.h> |
86aa7ba4 LP |
27 | |
28 | #include "logs-show.h" | |
29 | #include "log.h" | |
30 | #include "util.h" | |
ba961854 | 31 | #include "utf8.h" |
d99ae53a | 32 | #include "hashmap.h" |
dfb33a97 | 33 | #include "journal-internal.h" |
86aa7ba4 LP |
34 | |
35 | #define PRINT_THRESHOLD 128 | |
08ace05b | 36 | #define JSON_THRESHOLD 4096 |
86aa7ba4 | 37 | |
d4205751 LP |
38 | static int print_catalog(FILE *f, sd_journal *j) { |
39 | int r; | |
40 | _cleanup_free_ char *t = NULL, *z = NULL; | |
41 | ||
42 | ||
43 | r = sd_journal_get_catalog(j, &t); | |
44 | if (r < 0) | |
45 | return r; | |
46 | ||
47 | z = strreplace(strstrip(t), "\n", "\n-- "); | |
48 | if (!z) | |
49 | return log_oom(); | |
50 | ||
51 | fputs("-- ", f); | |
52 | fputs(z, f); | |
53 | fputc('\n', f); | |
54 | ||
55 | return 0; | |
56 | } | |
57 | ||
55d7bfc1 LP |
58 | static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) { |
59 | size_t fl, nl; | |
60 | void *buf; | |
61 | ||
62 | assert(data); | |
63 | assert(field); | |
64 | assert(target); | |
65 | assert(target_size); | |
66 | ||
67 | fl = strlen(field); | |
68 | if (length < fl) | |
69 | return 0; | |
70 | ||
71 | if (memcmp(data, field, fl)) | |
72 | return 0; | |
73 | ||
74 | nl = length - fl; | |
bf967366 | 75 | buf = malloc(nl+1); |
0d0f0c50 SL |
76 | if (!buf) |
77 | return log_oom(); | |
55d7bfc1 | 78 | |
46b0d922 LP |
79 | memcpy(buf, (const char*) data + fl, nl); |
80 | ((char*)buf)[nl] = 0; | |
81 | ||
6c1e6b98 | 82 | free(*target); |
55d7bfc1 LP |
83 | *target = buf; |
84 | *target_size = nl; | |
85 | ||
86 | return 1; | |
87 | } | |
88 | ||
08ace05b LP |
89 | static bool shall_print(const char *p, size_t l, OutputFlags flags) { |
90 | assert(p); | |
91 | ||
92 | if (flags & OUTPUT_SHOW_ALL) | |
55d7bfc1 LP |
93 | return true; |
94 | ||
93b73b06 | 95 | if (l >= PRINT_THRESHOLD) |
55d7bfc1 LP |
96 | return false; |
97 | ||
31f7bf19 | 98 | if (!utf8_is_printable(p, l)) |
55d7bfc1 LP |
99 | return false; |
100 | ||
101 | return true; | |
102 | } | |
103 | ||
31f7bf19 ZJS |
104 | static void print_multiline(FILE *f, unsigned prefix, unsigned n_columns, int flags, int priority, const char* message, size_t message_len) { |
105 | const char *color_on = "", *color_off = ""; | |
106 | const char *pos, *end; | |
107 | bool continuation = false; | |
108 | ||
109 | if (flags & OUTPUT_COLOR) { | |
110 | if (priority <= LOG_ERR) { | |
111 | color_on = ANSI_HIGHLIGHT_RED_ON; | |
112 | color_off = ANSI_HIGHLIGHT_OFF; | |
113 | } else if (priority <= LOG_NOTICE) { | |
114 | color_on = ANSI_HIGHLIGHT_ON; | |
115 | color_off = ANSI_HIGHLIGHT_OFF; | |
116 | } | |
117 | } | |
118 | ||
119 | for (pos = message; pos < message + message_len; pos = end + 1) { | |
120 | int len; | |
121 | for (end = pos; end < message + message_len && *end != '\n'; end++) | |
122 | ; | |
123 | len = end - pos; | |
124 | assert(len >= 0); | |
125 | ||
126 | if ((flags & OUTPUT_FULL_WIDTH) || (prefix + len + 1 < n_columns)) | |
127 | fprintf(f, "%*s%s%.*s%s\n", | |
128 | continuation * prefix, "", | |
129 | color_on, len, pos, color_off); | |
130 | else if (prefix < n_columns && n_columns - prefix >= 3) { | |
131 | _cleanup_free_ char *e; | |
132 | ||
133 | e = ellipsize_mem(pos, len, n_columns - prefix, 90); | |
134 | ||
135 | if (!e) | |
136 | fprintf(f, "%s%.*s%s\n", color_on, len, pos, color_off); | |
137 | else | |
138 | fprintf(f, "%s%s%s\n", color_on, e, color_off); | |
139 | } else | |
140 | fputs("...\n", f); | |
141 | ||
142 | continuation = true; | |
143 | } | |
144 | } | |
145 | ||
08ace05b LP |
146 | static int output_short( |
147 | FILE *f, | |
148 | sd_journal *j, | |
149 | OutputMode mode, | |
150 | unsigned n_columns, | |
151 | OutputFlags flags) { | |
152 | ||
86aa7ba4 | 153 | int r; |
86aa7ba4 LP |
154 | const void *data; |
155 | size_t length; | |
156 | size_t n = 0; | |
08ace05b | 157 | _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; |
49826187 LP |
158 | size_t hostname_len = 0, identifier_len = 0, comm_len = 0, pid_len = 0, fake_pid_len = 0, message_len = 0, realtime_len = 0, monotonic_len = 0, priority_len = 0; |
159 | int p = LOG_INFO; | |
86aa7ba4 | 160 | |
08ace05b | 161 | assert(f); |
86aa7ba4 LP |
162 | assert(j); |
163 | ||
93b73b06 LP |
164 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : PRINT_THRESHOLD); |
165 | ||
55d7bfc1 LP |
166 | SD_JOURNAL_FOREACH_DATA(j, data, length) { |
167 | ||
49826187 LP |
168 | r = parse_field(data, length, "PRIORITY=", &priority, &priority_len); |
169 | if (r < 0) | |
08ace05b | 170 | return r; |
49826187 LP |
171 | else if (r > 0) |
172 | continue; | |
173 | ||
55d7bfc1 LP |
174 | r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len); |
175 | if (r < 0) | |
08ace05b | 176 | return r; |
55d7bfc1 LP |
177 | else if (r > 0) |
178 | continue; | |
179 | ||
4cd9a9d9 | 180 | r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len); |
55d7bfc1 | 181 | if (r < 0) |
08ace05b | 182 | return r; |
55d7bfc1 LP |
183 | else if (r > 0) |
184 | continue; | |
185 | ||
186 | r = parse_field(data, length, "_COMM=", &comm, &comm_len); | |
187 | if (r < 0) | |
08ace05b | 188 | return r; |
55d7bfc1 LP |
189 | else if (r > 0) |
190 | continue; | |
191 | ||
192 | r = parse_field(data, length, "_PID=", &pid, &pid_len); | |
193 | if (r < 0) | |
08ace05b | 194 | return r; |
55d7bfc1 LP |
195 | else if (r > 0) |
196 | continue; | |
197 | ||
6c1e6b98 LP |
198 | r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len); |
199 | if (r < 0) | |
08ace05b | 200 | return r; |
6c1e6b98 LP |
201 | else if (r > 0) |
202 | continue; | |
203 | ||
bf967366 LP |
204 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len); |
205 | if (r < 0) | |
08ace05b | 206 | return r; |
bf967366 LP |
207 | else if (r > 0) |
208 | continue; | |
209 | ||
210 | r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len); | |
211 | if (r < 0) | |
08ace05b | 212 | return r; |
bf967366 LP |
213 | else if (r > 0) |
214 | continue; | |
215 | ||
55d7bfc1 LP |
216 | r = parse_field(data, length, "MESSAGE=", &message, &message_len); |
217 | if (r < 0) | |
08ace05b | 218 | return r; |
55d7bfc1 LP |
219 | } |
220 | ||
08ace05b LP |
221 | if (!message) |
222 | return 0; | |
55d7bfc1 | 223 | |
e8bc0ea2 LP |
224 | if (!(flags & OUTPUT_SHOW_ALL)) |
225 | strip_tab_ansi(&message, &message_len); | |
226 | ||
49826187 LP |
227 | if (priority_len == 1 && *priority >= '0' && *priority <= '7') |
228 | p = *priority - '0'; | |
229 | ||
a6e87e90 | 230 | if (mode == OUTPUT_SHORT_MONOTONIC) { |
67a12205 | 231 | uint64_t t; |
3ebcdf8c LP |
232 | sd_id128_t boot_id; |
233 | ||
bf967366 LP |
234 | r = -ENOENT; |
235 | ||
236 | if (monotonic) | |
237 | r = safe_atou64(monotonic, &t); | |
238 | ||
239 | if (r < 0) | |
3ebcdf8c | 240 | r = sd_journal_get_monotonic_usec(j, &t, &boot_id); |
86aa7ba4 | 241 | |
3ebcdf8c LP |
242 | if (r < 0) { |
243 | log_error("Failed to get monotonic: %s", strerror(-r)); | |
08ace05b | 244 | return r; |
67a12205 LP |
245 | } |
246 | ||
08ace05b LP |
247 | fprintf(f, "[%5llu.%06llu]", |
248 | (unsigned long long) (t / USEC_PER_SEC), | |
249 | (unsigned long long) (t % USEC_PER_SEC)); | |
3ebcdf8c LP |
250 | |
251 | n += 1 + 5 + 1 + 6 + 1; | |
252 | ||
67a12205 LP |
253 | } else { |
254 | char buf[64]; | |
bf967366 | 255 | uint64_t x; |
67a12205 LP |
256 | time_t t; |
257 | struct tm tm; | |
731a676c | 258 | |
bf967366 LP |
259 | r = -ENOENT; |
260 | ||
261 | if (realtime) | |
262 | r = safe_atou64(realtime, &x); | |
263 | ||
264 | if (r < 0) | |
265 | r = sd_journal_get_realtime_usec(j, &x); | |
67a12205 | 266 | |
67a12205 LP |
267 | if (r < 0) { |
268 | log_error("Failed to get realtime: %s", strerror(-r)); | |
08ace05b | 269 | return r; |
67a12205 LP |
270 | } |
271 | ||
bf967366 | 272 | t = (time_t) (x / USEC_PER_SEC); |
67a12205 LP |
273 | if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", localtime_r(&t, &tm)) <= 0) { |
274 | log_error("Failed to format time."); | |
08ace05b | 275 | return r; |
67a12205 LP |
276 | } |
277 | ||
08ace05b | 278 | fputs(buf, f); |
67a12205 LP |
279 | n += strlen(buf); |
280 | } | |
86aa7ba4 | 281 | |
08ace05b LP |
282 | if (hostname && shall_print(hostname, hostname_len, flags)) { |
283 | fprintf(f, " %.*s", (int) hostname_len, hostname); | |
55d7bfc1 LP |
284 | n += hostname_len + 1; |
285 | } | |
286 | ||
08ace05b LP |
287 | if (identifier && shall_print(identifier, identifier_len, flags)) { |
288 | fprintf(f, " %.*s", (int) identifier_len, identifier); | |
4cd9a9d9 | 289 | n += identifier_len + 1; |
08ace05b LP |
290 | } else if (comm && shall_print(comm, comm_len, flags)) { |
291 | fprintf(f, " %.*s", (int) comm_len, comm); | |
55d7bfc1 | 292 | n += comm_len + 1; |
b5936820 | 293 | } else |
08ace05b | 294 | fputc(' ', f); |
86aa7ba4 | 295 | |
08ace05b LP |
296 | if (pid && shall_print(pid, pid_len, flags)) { |
297 | fprintf(f, "[%.*s]", (int) pid_len, pid); | |
55d7bfc1 | 298 | n += pid_len + 2; |
08ace05b LP |
299 | } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { |
300 | fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); | |
6c1e6b98 | 301 | n += fake_pid_len + 2; |
86aa7ba4 LP |
302 | } |
303 | ||
31f7bf19 | 304 | if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { |
e6acda19 | 305 | char bytes[FORMAT_BYTES_MAX]; |
08ace05b | 306 | fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); |
31f7bf19 ZJS |
307 | } else { |
308 | fputs(": ", f); | |
309 | print_multiline(f, n + 2, n_columns, flags, p, message, message_len); | |
310 | } | |
55d7bfc1 | 311 | |
d4205751 LP |
312 | if (flags & OUTPUT_CATALOG) |
313 | print_catalog(f, j); | |
314 | ||
08ace05b | 315 | return 0; |
86aa7ba4 LP |
316 | } |
317 | ||
08ace05b LP |
318 | static int output_verbose( |
319 | FILE *f, | |
320 | sd_journal *j, | |
321 | OutputMode mode, | |
322 | unsigned n_columns, | |
323 | OutputFlags flags) { | |
324 | ||
86aa7ba4 LP |
325 | const void *data; |
326 | size_t length; | |
7fd1b19b | 327 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
328 | uint64_t realtime; |
329 | char ts[FORMAT_TIMESTAMP_MAX]; | |
330 | int r; | |
331 | ||
08ace05b | 332 | assert(f); |
86aa7ba4 LP |
333 | assert(j); |
334 | ||
93b73b06 LP |
335 | sd_journal_set_data_threshold(j, 0); |
336 | ||
86aa7ba4 LP |
337 | r = sd_journal_get_realtime_usec(j, &realtime); |
338 | if (r < 0) { | |
339 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
340 | return r; | |
341 | } | |
342 | ||
343 | r = sd_journal_get_cursor(j, &cursor); | |
344 | if (r < 0) { | |
345 | log_error("Failed to get cursor: %s", strerror(-r)); | |
346 | return r; | |
347 | } | |
348 | ||
08ace05b LP |
349 | fprintf(f, "%s [%s]\n", |
350 | format_timestamp(ts, sizeof(ts), realtime), | |
351 | cursor); | |
86aa7ba4 | 352 | |
86aa7ba4 | 353 | SD_JOURNAL_FOREACH_DATA(j, data, length) { |
31f7bf19 ZJS |
354 | const char *c; |
355 | int fieldlen; | |
356 | c = memchr(data, '=', length); | |
357 | if (!c) { | |
358 | log_error("Invalid field."); | |
359 | return -EINVAL; | |
360 | } | |
361 | fieldlen = c - (const char*) data; | |
86aa7ba4 | 362 | |
31f7bf19 ZJS |
363 | if ((flags & OUTPUT_SHOW_ALL) || (length < PRINT_THRESHOLD && utf8_is_printable(data, length))) { |
364 | fprintf(f, " %.*s=", fieldlen, (const char*)data); | |
365 | print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1); | |
366 | } else { | |
367 | char bytes[FORMAT_BYTES_MAX]; | |
86aa7ba4 | 368 | |
31f7bf19 ZJS |
369 | fprintf(f, " %.*s=[%s blob data]\n", |
370 | (int) (c - (const char*) data), | |
371 | (const char*) data, | |
372 | format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1)); | |
373 | } | |
86aa7ba4 LP |
374 | } |
375 | ||
d4205751 LP |
376 | if (flags & OUTPUT_CATALOG) |
377 | print_catalog(f, j); | |
378 | ||
86aa7ba4 LP |
379 | return 0; |
380 | } | |
381 | ||
08ace05b LP |
382 | static int output_export( |
383 | FILE *f, | |
384 | sd_journal *j, | |
385 | OutputMode mode, | |
386 | unsigned n_columns, | |
387 | OutputFlags flags) { | |
388 | ||
86aa7ba4 LP |
389 | sd_id128_t boot_id; |
390 | char sid[33]; | |
391 | int r; | |
392 | usec_t realtime, monotonic; | |
7fd1b19b | 393 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
394 | const void *data; |
395 | size_t length; | |
396 | ||
397 | assert(j); | |
398 | ||
93b73b06 LP |
399 | sd_journal_set_data_threshold(j, 0); |
400 | ||
86aa7ba4 LP |
401 | r = sd_journal_get_realtime_usec(j, &realtime); |
402 | if (r < 0) { | |
403 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
404 | return r; | |
405 | } | |
406 | ||
407 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
408 | if (r < 0) { | |
409 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); | |
410 | return r; | |
411 | } | |
412 | ||
413 | r = sd_journal_get_cursor(j, &cursor); | |
414 | if (r < 0) { | |
415 | log_error("Failed to get cursor: %s", strerror(-r)); | |
416 | return r; | |
417 | } | |
418 | ||
08ace05b LP |
419 | fprintf(f, |
420 | "__CURSOR=%s\n" | |
421 | "__REALTIME_TIMESTAMP=%llu\n" | |
422 | "__MONOTONIC_TIMESTAMP=%llu\n" | |
423 | "_BOOT_ID=%s\n", | |
424 | cursor, | |
425 | (unsigned long long) realtime, | |
426 | (unsigned long long) monotonic, | |
427 | sd_id128_to_string(boot_id, sid)); | |
86aa7ba4 | 428 | |
86aa7ba4 LP |
429 | SD_JOURNAL_FOREACH_DATA(j, data, length) { |
430 | ||
112301ae LP |
431 | /* We already printed the boot id, from the data in |
432 | * the header, hence let's suppress it here */ | |
433 | if (length >= 9 && | |
434 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
435 | continue; | |
436 | ||
31f7bf19 | 437 | if (!utf8_is_printable(data, length)) { |
86aa7ba4 LP |
438 | const char *c; |
439 | uint64_t le64; | |
440 | ||
441 | c = memchr(data, '=', length); | |
442 | if (!c) { | |
443 | log_error("Invalid field."); | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
08ace05b LP |
447 | fwrite(data, c - (const char*) data, 1, f); |
448 | fputc('\n', f); | |
86aa7ba4 | 449 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
450 | fwrite(&le64, sizeof(le64), 1, f); |
451 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
86aa7ba4 | 452 | } else |
08ace05b | 453 | fwrite(data, length, 1, f); |
86aa7ba4 | 454 | |
08ace05b | 455 | fputc('\n', f); |
86aa7ba4 LP |
456 | } |
457 | ||
08ace05b | 458 | fputc('\n', f); |
86aa7ba4 LP |
459 | |
460 | return 0; | |
461 | } | |
462 | ||
240a5fe8 | 463 | void json_escape( |
08ace05b LP |
464 | FILE *f, |
465 | const char* p, | |
466 | size_t l, | |
467 | OutputFlags flags) { | |
468 | ||
469 | assert(f); | |
470 | assert(p); | |
471 | ||
93b73b06 | 472 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
473 | |
474 | fputs("null", f); | |
475 | ||
31f7bf19 | 476 | else if (!utf8_is_printable(p, l)) { |
86aa7ba4 LP |
477 | bool not_first = false; |
478 | ||
08ace05b | 479 | fputs("[ ", f); |
86aa7ba4 LP |
480 | |
481 | while (l > 0) { | |
482 | if (not_first) | |
08ace05b | 483 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
484 | else { |
485 | not_first = true; | |
08ace05b | 486 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
487 | } |
488 | ||
489 | p++; | |
490 | l--; | |
491 | } | |
492 | ||
08ace05b | 493 | fputs(" ]", f); |
86aa7ba4 | 494 | } else { |
08ace05b | 495 | fputc('\"', f); |
86aa7ba4 LP |
496 | |
497 | while (l > 0) { | |
498 | if (*p == '"' || *p == '\\') { | |
08ace05b LP |
499 | fputc('\\', f); |
500 | fputc(*p, f); | |
31f7bf19 ZJS |
501 | } else if (*p == '\n') |
502 | fputs("\\n", f); | |
503 | else if (*p < ' ') | |
08ace05b LP |
504 | fprintf(f, "\\u%04x", *p); |
505 | else | |
506 | fputc(*p, f); | |
86aa7ba4 LP |
507 | |
508 | p++; | |
509 | l--; | |
510 | } | |
511 | ||
08ace05b | 512 | fputc('\"', f); |
86aa7ba4 LP |
513 | } |
514 | } | |
515 | ||
08ace05b LP |
516 | static int output_json( |
517 | FILE *f, | |
518 | sd_journal *j, | |
519 | OutputMode mode, | |
520 | unsigned n_columns, | |
521 | OutputFlags flags) { | |
522 | ||
86aa7ba4 | 523 | uint64_t realtime, monotonic; |
7fd1b19b | 524 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
525 | const void *data; |
526 | size_t length; | |
527 | sd_id128_t boot_id; | |
2e729834 | 528 | char sid[33], *k; |
86aa7ba4 | 529 | int r; |
d99ae53a LP |
530 | Hashmap *h = NULL; |
531 | bool done, separator; | |
86aa7ba4 LP |
532 | |
533 | assert(j); | |
534 | ||
93b73b06 LP |
535 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
536 | ||
86aa7ba4 LP |
537 | r = sd_journal_get_realtime_usec(j, &realtime); |
538 | if (r < 0) { | |
539 | log_error("Failed to get realtime timestamp: %s", strerror(-r)); | |
540 | return r; | |
541 | } | |
542 | ||
543 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
544 | if (r < 0) { | |
545 | log_error("Failed to get monotonic timestamp: %s", strerror(-r)); | |
546 | return r; | |
547 | } | |
548 | ||
549 | r = sd_journal_get_cursor(j, &cursor); | |
550 | if (r < 0) { | |
551 | log_error("Failed to get cursor: %s", strerror(-r)); | |
552 | return r; | |
553 | } | |
554 | ||
a6e87e90 | 555 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
556 | fprintf(f, |
557 | "{\n" | |
558 | "\t\"__CURSOR\" : \"%s\",\n" | |
559 | "\t\"__REALTIME_TIMESTAMP\" : \"%llu\",\n" | |
560 | "\t\"__MONOTONIC_TIMESTAMP\" : \"%llu\",\n" | |
561 | "\t\"_BOOT_ID\" : \"%s\"", | |
562 | cursor, | |
563 | (unsigned long long) realtime, | |
564 | (unsigned long long) monotonic, | |
565 | sd_id128_to_string(boot_id, sid)); | |
48383c25 LP |
566 | else { |
567 | if (mode == OUTPUT_JSON_SSE) | |
568 | fputs("data: ", f); | |
569 | ||
08ace05b LP |
570 | fprintf(f, |
571 | "{ \"__CURSOR\" : \"%s\", " | |
572 | "\"__REALTIME_TIMESTAMP\" : \"%llu\", " | |
573 | "\"__MONOTONIC_TIMESTAMP\" : \"%llu\", " | |
574 | "\"_BOOT_ID\" : \"%s\"", | |
575 | cursor, | |
576 | (unsigned long long) realtime, | |
577 | (unsigned long long) monotonic, | |
578 | sd_id128_to_string(boot_id, sid)); | |
48383c25 | 579 | } |
86aa7ba4 | 580 | |
d99ae53a LP |
581 | h = hashmap_new(string_hash_func, string_compare_func); |
582 | if (!h) | |
583 | return -ENOMEM; | |
584 | ||
585 | /* First round, iterate through the entry and count how often each field appears */ | |
86aa7ba4 | 586 | SD_JOURNAL_FOREACH_DATA(j, data, length) { |
d99ae53a LP |
587 | const char *eq; |
588 | char *n; | |
589 | unsigned u; | |
86aa7ba4 | 590 | |
112301ae LP |
591 | if (length >= 9 && |
592 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
593 | continue; | |
594 | ||
d99ae53a LP |
595 | eq = memchr(data, '=', length); |
596 | if (!eq) | |
597 | continue; | |
86aa7ba4 | 598 | |
d99ae53a LP |
599 | n = strndup(data, eq - (const char*) data); |
600 | if (!n) { | |
601 | r = -ENOMEM; | |
602 | goto finish; | |
603 | } | |
a6e87e90 | 604 | |
d99ae53a LP |
605 | u = PTR_TO_UINT(hashmap_get(h, n)); |
606 | if (u == 0) { | |
607 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
608 | if (r < 0) { | |
609 | free(n); | |
610 | goto finish; | |
611 | } | |
612 | } else { | |
613 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
614 | free(n); | |
615 | if (r < 0) | |
616 | goto finish; | |
617 | } | |
86aa7ba4 LP |
618 | } |
619 | ||
d99ae53a LP |
620 | separator = true; |
621 | do { | |
622 | done = true; | |
623 | ||
624 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
625 | const char *eq; | |
626 | char *kk, *n; | |
627 | size_t m; | |
628 | unsigned u; | |
629 | ||
630 | /* We already printed the boot id, from the data in | |
631 | * the header, hence let's suppress it here */ | |
632 | if (length >= 9 && | |
633 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
634 | continue; | |
635 | ||
636 | eq = memchr(data, '=', length); | |
637 | if (!eq) | |
638 | continue; | |
639 | ||
640 | if (separator) { | |
641 | if (mode == OUTPUT_JSON_PRETTY) | |
642 | fputs(",\n\t", f); | |
643 | else | |
644 | fputs(", ", f); | |
645 | } | |
646 | ||
647 | m = eq - (const char*) data; | |
648 | ||
649 | n = strndup(data, m); | |
650 | if (!n) { | |
651 | r = -ENOMEM; | |
652 | goto finish; | |
653 | } | |
654 | ||
655 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); | |
656 | if (u == 0) { | |
657 | /* We already printed this, let's jump to the next */ | |
658 | free(n); | |
659 | separator = false; | |
660 | ||
661 | continue; | |
662 | } else if (u == 1) { | |
663 | /* Field only appears once, output it directly */ | |
664 | ||
665 | json_escape(f, data, m, flags); | |
666 | fputs(" : ", f); | |
667 | ||
668 | json_escape(f, eq + 1, length - m - 1, flags); | |
669 | ||
670 | hashmap_remove(h, n); | |
671 | free(kk); | |
672 | free(n); | |
673 | ||
674 | separator = true; | |
675 | ||
676 | continue; | |
677 | ||
678 | } else { | |
679 | /* Field appears multiple times, output it as array */ | |
680 | json_escape(f, data, m, flags); | |
681 | fputs(" : [ ", f); | |
682 | json_escape(f, eq + 1, length - m - 1, flags); | |
683 | ||
684 | /* Iterate through the end of the list */ | |
685 | ||
686 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
687 | if (length < m + 1) | |
688 | continue; | |
689 | ||
690 | if (memcmp(data, n, m) != 0) | |
691 | continue; | |
692 | ||
693 | if (((const char*) data)[m] != '=') | |
694 | continue; | |
695 | ||
696 | fputs(", ", f); | |
697 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
698 | } | |
699 | ||
700 | fputs(" ]", f); | |
701 | ||
702 | hashmap_remove(h, n); | |
703 | free(kk); | |
704 | free(n); | |
705 | ||
706 | /* Iterate data fields form the beginning */ | |
707 | done = false; | |
708 | separator = true; | |
709 | ||
710 | break; | |
711 | } | |
712 | } | |
713 | ||
714 | } while (!done); | |
715 | ||
a6e87e90 | 716 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 717 | fputs("\n}\n", f); |
48383c25 LP |
718 | else if (mode == OUTPUT_JSON_SSE) |
719 | fputs("}\n\n", f); | |
a6e87e90 | 720 | else |
08ace05b | 721 | fputs(" }\n", f); |
86aa7ba4 | 722 | |
d99ae53a LP |
723 | r = 0; |
724 | ||
725 | finish: | |
726 | while ((k = hashmap_steal_first_key(h))) | |
727 | free(k); | |
728 | ||
729 | hashmap_free(h); | |
730 | ||
731 | return r; | |
86aa7ba4 LP |
732 | } |
733 | ||
08ace05b LP |
734 | static int output_cat( |
735 | FILE *f, | |
736 | sd_journal *j, | |
737 | OutputMode mode, | |
738 | unsigned n_columns, | |
739 | OutputFlags flags) { | |
740 | ||
d3f2bdbf LP |
741 | const void *data; |
742 | size_t l; | |
743 | int r; | |
744 | ||
745 | assert(j); | |
08ace05b | 746 | assert(f); |
d3f2bdbf | 747 | |
93b73b06 LP |
748 | sd_journal_set_data_threshold(j, 0); |
749 | ||
d3f2bdbf LP |
750 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
751 | if (r < 0) { | |
c198300f LP |
752 | /* An entry without MESSAGE=? */ |
753 | if (r == -ENOENT) | |
754 | return 0; | |
755 | ||
d3f2bdbf LP |
756 | log_error("Failed to get data: %s", strerror(-r)); |
757 | return r; | |
758 | } | |
759 | ||
760 | assert(l >= 8); | |
761 | ||
08ace05b LP |
762 | fwrite((const char*) data + 8, 1, l - 8, f); |
763 | fputc('\n', f); | |
d3f2bdbf LP |
764 | |
765 | return 0; | |
766 | } | |
767 | ||
08ace05b LP |
768 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
769 | FILE *f, | |
770 | sd_journal*j, | |
771 | OutputMode mode, | |
772 | unsigned n_columns, | |
773 | OutputFlags flags) = { | |
774 | ||
a6e87e90 LP |
775 | [OUTPUT_SHORT] = output_short, |
776 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
86aa7ba4 LP |
777 | [OUTPUT_VERBOSE] = output_verbose, |
778 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 779 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 780 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 781 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 782 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
783 | }; |
784 | ||
08ace05b LP |
785 | int output_journal( |
786 | FILE *f, | |
787 | sd_journal *j, | |
788 | OutputMode mode, | |
789 | unsigned n_columns, | |
790 | OutputFlags flags) { | |
791 | ||
e268b81e | 792 | int ret; |
df50185b | 793 | assert(mode >= 0); |
86aa7ba4 LP |
794 | assert(mode < _OUTPUT_MODE_MAX); |
795 | ||
34a35ece LP |
796 | if (n_columns <= 0) |
797 | n_columns = columns(); | |
798 | ||
08ace05b | 799 | ret = output_funcs[mode](f, j, mode, n_columns, flags); |
e268b81e BP |
800 | fflush(stdout); |
801 | return ret; | |
86aa7ba4 LP |
802 | } |
803 | ||
1a6c43e9 MT |
804 | static int show_journal(FILE *f, |
805 | sd_journal *j, | |
806 | OutputMode mode, | |
807 | unsigned n_columns, | |
808 | usec_t not_before, | |
809 | unsigned how_many, | |
810 | OutputFlags flags) { | |
86aa7ba4 | 811 | |
86aa7ba4 | 812 | int r; |
df50185b LP |
813 | unsigned line = 0; |
814 | bool need_seek = false; | |
085d7120 | 815 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 816 | |
1a6c43e9 | 817 | assert(j); |
df50185b LP |
818 | assert(mode >= 0); |
819 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
820 | |
821 | /* Seek to end */ | |
86aa7ba4 LP |
822 | r = sd_journal_seek_tail(j); |
823 | if (r < 0) | |
824 | goto finish; | |
825 | ||
df50185b LP |
826 | r = sd_journal_previous_skip(j, how_many); |
827 | if (r < 0) | |
828 | goto finish; | |
86aa7ba4 | 829 | |
df50185b LP |
830 | for (;;) { |
831 | for (;;) { | |
832 | usec_t usec; | |
833 | ||
834 | if (need_seek) { | |
835 | r = sd_journal_next(j); | |
836 | if (r < 0) | |
837 | goto finish; | |
838 | } | |
839 | ||
840 | if (r == 0) | |
841 | break; | |
86aa7ba4 | 842 | |
df50185b LP |
843 | need_seek = true; |
844 | ||
845 | if (not_before > 0) { | |
846 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
847 | ||
848 | /* -ESTALE is returned if the | |
849 | timestamp is not from this boot */ | |
850 | if (r == -ESTALE) | |
851 | continue; | |
852 | else if (r < 0) | |
853 | goto finish; | |
854 | ||
855 | if (usec < not_before) | |
856 | continue; | |
857 | } | |
858 | ||
859 | line ++; | |
860 | ||
08ace05b | 861 | r = output_journal(f, j, mode, n_columns, flags); |
df50185b LP |
862 | if (r < 0) |
863 | goto finish; | |
864 | } | |
865 | ||
08984293 LP |
866 | if (warn_cutoff && line < how_many && not_before > 0) { |
867 | sd_id128_t boot_id; | |
868 | usec_t cutoff; | |
869 | ||
870 | /* Check whether the cutoff line is too early */ | |
871 | ||
872 | r = sd_id128_get_boot(&boot_id); | |
873 | if (r < 0) | |
874 | goto finish; | |
875 | ||
876 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
877 | if (r < 0) | |
878 | goto finish; | |
879 | ||
b59866ae | 880 | if (r > 0 && not_before < cutoff) |
08ace05b | 881 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
08984293 LP |
882 | |
883 | warn_cutoff = false; | |
884 | } | |
885 | ||
085d7120 | 886 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
887 | break; |
888 | ||
e02d1cf7 | 889 | r = sd_journal_wait(j, (usec_t) -1); |
df50185b LP |
890 | if (r < 0) |
891 | goto finish; | |
892 | ||
86aa7ba4 LP |
893 | } |
894 | ||
1a6c43e9 MT |
895 | finish: |
896 | return r; | |
897 | } | |
898 | ||
886a64fe | 899 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
1a6c43e9 | 900 | int r; |
886a64fe | 901 | _cleanup_free_ char *m1 = NULL, *m2 = NULL, *m3 = NULL; |
1a6c43e9 | 902 | |
886a64fe | 903 | assert(j); |
1a6c43e9 MT |
904 | assert(unit); |
905 | ||
1a6c43e9 MT |
906 | if (asprintf(&m1, "_SYSTEMD_UNIT=%s", unit) < 0 || |
907 | asprintf(&m2, "COREDUMP_UNIT=%s", unit) < 0 || | |
886a64fe ZJS |
908 | asprintf(&m3, "UNIT=%s", unit) < 0) |
909 | return -ENOMEM; | |
1a6c43e9 | 910 | |
886a64fe ZJS |
911 | (void)( |
912 | /* Look for messages from the service itself */ | |
913 | (r = sd_journal_add_match(j, m1, 0)) || | |
914 | ||
915 | /* Look for coredumps of the service */ | |
916 | (r = sd_journal_add_disjunction(j)) || | |
917 | (r = sd_journal_add_match(j, | |
918 | "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || | |
919 | (r = sd_journal_add_match(j, m2, 0)) || | |
920 | ||
921 | /* Look for messages from PID 1 about this service */ | |
922 | (r = sd_journal_add_disjunction(j)) || | |
923 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
924 | (r = sd_journal_add_match(j, m3, 0)) | |
925 | ); | |
926 | return r; | |
927 | } | |
1a6c43e9 | 928 | |
886a64fe ZJS |
929 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
930 | int r; | |
931 | _cleanup_free_ char *m1 = NULL, *m2 = NULL, *m3 = NULL, *m4 = NULL; | |
1a6c43e9 | 932 | |
886a64fe ZJS |
933 | assert(j); |
934 | assert(unit); | |
1a6c43e9 | 935 | |
886a64fe ZJS |
936 | if (asprintf(&m1, "_SYSTEMD_USER_UNIT=%s", unit) < 0 || |
937 | asprintf(&m2, "USER_UNIT=%s", unit) < 0 || | |
938 | asprintf(&m3, "COREDUMP_USER_UNIT=%s", unit) < 0 || | |
939 | asprintf(&m4, "_UID=%d", uid) < 0) | |
940 | return -ENOMEM; | |
1a6c43e9 | 941 | |
886a64fe ZJS |
942 | (void) ( |
943 | /* Look for messages from the user service itself */ | |
944 | (r = sd_journal_add_match(j, m1, 0)) || | |
945 | (r = sd_journal_add_match(j, m4, 0)) || | |
946 | ||
947 | /* Look for messages from systemd about this service */ | |
948 | (r = sd_journal_add_disjunction(j)) || | |
949 | (r = sd_journal_add_match(j, m2, 0)) || | |
950 | (r = sd_journal_add_match(j, m4, 0)) || | |
951 | ||
952 | /* Look for coredumps of the service */ | |
953 | (r = sd_journal_add_disjunction(j)) || | |
954 | (r = sd_journal_add_match(j, m3, 0)) || | |
955 | (r = sd_journal_add_match(j, m4, 0)) | |
956 | ); | |
1a6c43e9 MT |
957 | return r; |
958 | } | |
959 | ||
5ec76417 ZJS |
960 | int add_match_this_boot(sd_journal *j) { |
961 | char match[9+32+1] = "_BOOT_ID="; | |
962 | sd_id128_t boot_id; | |
963 | int r; | |
964 | ||
965 | assert(j); | |
966 | ||
967 | r = sd_id128_get_boot(&boot_id); | |
968 | if (r < 0) { | |
969 | log_error("Failed to get boot id: %s", strerror(-r)); | |
970 | return r; | |
971 | } | |
972 | ||
973 | sd_id128_to_string(boot_id, match + 9); | |
974 | r = sd_journal_add_match(j, match, strlen(match)); | |
975 | if (r < 0) { | |
976 | log_error("Failed to add match: %s", strerror(-r)); | |
977 | return r; | |
978 | } | |
979 | ||
980 | r = sd_journal_add_conjunction(j); | |
981 | if (r < 0) | |
982 | return r; | |
983 | ||
984 | return 0; | |
985 | } | |
986 | ||
886a64fe | 987 | int show_journal_by_unit( |
1a6c43e9 MT |
988 | FILE *f, |
989 | const char *unit, | |
990 | OutputMode mode, | |
991 | unsigned n_columns, | |
992 | usec_t not_before, | |
993 | unsigned how_many, | |
994 | uid_t uid, | |
886a64fe ZJS |
995 | OutputFlags flags, |
996 | bool system) { | |
1a6c43e9 | 997 | |
7fd1b19b | 998 | _cleanup_journal_close_ sd_journal*j = NULL; |
1a6c43e9 | 999 | int r; |
886a64fe | 1000 | int jflags = SD_JOURNAL_LOCAL_ONLY | system * SD_JOURNAL_SYSTEM_ONLY; |
1a6c43e9 MT |
1001 | |
1002 | assert(mode >= 0); | |
1003 | assert(mode < _OUTPUT_MODE_MAX); | |
1004 | assert(unit); | |
1005 | ||
1a6c43e9 MT |
1006 | if (how_many <= 0) |
1007 | return 0; | |
1008 | ||
886a64fe | 1009 | r = sd_journal_open(&j, jflags); |
f9045468 | 1010 | if (r < 0) |
763c7aa2 | 1011 | return r; |
f9045468 | 1012 | |
5ec76417 ZJS |
1013 | r = add_match_this_boot(j); |
1014 | if (r < 0) | |
1015 | return r; | |
1016 | ||
886a64fe ZJS |
1017 | if (system) |
1018 | r = add_matches_for_unit(j, unit); | |
1019 | else | |
1020 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1021 | if (r < 0) |
763c7aa2 | 1022 | return r; |
1a6c43e9 | 1023 | |
5ec76417 ZJS |
1024 | log_debug("Journal filter: %s", journal_make_match_string(j)); |
1025 | ||
1a6c43e9 MT |
1026 | r = show_journal(f, j, mode, n_columns, not_before, how_many, flags); |
1027 | if (r < 0) | |
763c7aa2 | 1028 | return r; |
86aa7ba4 | 1029 | |
763c7aa2 | 1030 | return 0; |
86aa7ba4 | 1031 | } |
df50185b LP |
1032 | |
1033 | static const char *const output_mode_table[_OUTPUT_MODE_MAX] = { | |
1034 | [OUTPUT_SHORT] = "short", | |
67a12205 | 1035 | [OUTPUT_SHORT_MONOTONIC] = "short-monotonic", |
df50185b LP |
1036 | [OUTPUT_VERBOSE] = "verbose", |
1037 | [OUTPUT_EXPORT] = "export", | |
d3f2bdbf | 1038 | [OUTPUT_JSON] = "json", |
a6e87e90 | 1039 | [OUTPUT_JSON_PRETTY] = "json-pretty", |
48383c25 | 1040 | [OUTPUT_JSON_SSE] = "json-sse", |
d3f2bdbf | 1041 | [OUTPUT_CAT] = "cat" |
df50185b LP |
1042 | }; |
1043 | ||
1044 | DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode); |