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Commit | Line | Data |
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86aa7ba4 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2012 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
7 | under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
86aa7ba4 LP |
9 | (at your option) any later version. |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 14 | Lesser General Public License for more details. |
86aa7ba4 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
86aa7ba4 LP |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
86aa7ba4 | 20 | #include <errno.h> |
b6741478 | 21 | #include <fcntl.h> |
a8fbdf54 TA |
22 | #include <signal.h> |
23 | #include <stdint.h> | |
24 | #include <stdlib.h> | |
07630cea LP |
25 | #include <string.h> |
26 | #include <sys/socket.h> | |
a8fbdf54 | 27 | #include <syslog.h> |
07630cea | 28 | #include <time.h> |
a8fbdf54 TA |
29 | #include <unistd.h> |
30 | ||
31 | #include "sd-id128.h" | |
32 | #include "sd-journal.h" | |
86aa7ba4 | 33 | |
b5efdb8a | 34 | #include "alloc-util.h" |
3ffd4af2 | 35 | #include "fd-util.h" |
f97b34a6 | 36 | #include "format-util.h" |
d99ae53a | 37 | #include "hashmap.h" |
07630cea | 38 | #include "hostname-util.h" |
c004493c | 39 | #include "io-util.h" |
dfb33a97 | 40 | #include "journal-internal.h" |
07630cea | 41 | #include "log.h" |
3ffd4af2 | 42 | #include "logs-show.h" |
a8fbdf54 TA |
43 | #include "macro.h" |
44 | #include "output-mode.h" | |
6bedfcbb | 45 | #include "parse-util.h" |
0b452006 | 46 | #include "process-util.h" |
a8fbdf54 | 47 | #include "sparse-endian.h" |
29a753df | 48 | #include "stdio-util.h" |
8b43440b | 49 | #include "string-table.h" |
07630cea | 50 | #include "string-util.h" |
288a74cc | 51 | #include "terminal-util.h" |
a8fbdf54 | 52 | #include "time-util.h" |
07630cea LP |
53 | #include "utf8.h" |
54 | #include "util.h" | |
86aa7ba4 | 55 | |
07630cea | 56 | /* up to three lines (each up to 100 characters) or 300 characters, whichever is less */ |
a6f0104a ZJS |
57 | #define PRINT_LINE_THRESHOLD 3 |
58 | #define PRINT_CHAR_THRESHOLD 300 | |
59 | ||
08ace05b | 60 | #define JSON_THRESHOLD 4096 |
86aa7ba4 | 61 | |
d4205751 LP |
62 | static int print_catalog(FILE *f, sd_journal *j) { |
63 | int r; | |
64 | _cleanup_free_ char *t = NULL, *z = NULL; | |
65 | ||
66 | ||
67 | r = sd_journal_get_catalog(j, &t); | |
68 | if (r < 0) | |
69 | return r; | |
70 | ||
71 | z = strreplace(strstrip(t), "\n", "\n-- "); | |
72 | if (!z) | |
73 | return log_oom(); | |
74 | ||
75 | fputs("-- ", f); | |
76 | fputs(z, f); | |
77 | fputc('\n', f); | |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
55d7bfc1 LP |
82 | static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) { |
83 | size_t fl, nl; | |
d813d7a3 | 84 | char *buf; |
55d7bfc1 LP |
85 | |
86 | assert(data); | |
87 | assert(field); | |
88 | assert(target); | |
55d7bfc1 LP |
89 | |
90 | fl = strlen(field); | |
91 | if (length < fl) | |
92 | return 0; | |
93 | ||
94 | if (memcmp(data, field, fl)) | |
95 | return 0; | |
96 | ||
97 | nl = length - fl; | |
d813d7a3 | 98 | buf = new(char, nl+1); |
0d0f0c50 SL |
99 | if (!buf) |
100 | return log_oom(); | |
55d7bfc1 | 101 | |
46b0d922 | 102 | memcpy(buf, (const char*) data + fl, nl); |
d813d7a3 | 103 | buf[nl] = 0; |
46b0d922 | 104 | |
6c1e6b98 | 105 | free(*target); |
55d7bfc1 | 106 | *target = buf; |
d813d7a3 LP |
107 | |
108 | if (target_size) | |
109 | *target_size = nl; | |
55d7bfc1 LP |
110 | |
111 | return 1; | |
112 | } | |
113 | ||
08ace05b LP |
114 | static bool shall_print(const char *p, size_t l, OutputFlags flags) { |
115 | assert(p); | |
116 | ||
117 | if (flags & OUTPUT_SHOW_ALL) | |
55d7bfc1 LP |
118 | return true; |
119 | ||
a6f0104a | 120 | if (l >= PRINT_CHAR_THRESHOLD) |
55d7bfc1 LP |
121 | return false; |
122 | ||
31f7bf19 | 123 | if (!utf8_is_printable(p, l)) |
55d7bfc1 LP |
124 | return false; |
125 | ||
126 | return true; | |
127 | } | |
128 | ||
00f117a5 | 129 | static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, OutputFlags flags, int priority, const char* message, size_t message_len) { |
31f7bf19 ZJS |
130 | const char *color_on = "", *color_off = ""; |
131 | const char *pos, *end; | |
94e0bd7d | 132 | bool ellipsized = false; |
a6f0104a | 133 | int line = 0; |
31f7bf19 ZJS |
134 | |
135 | if (flags & OUTPUT_COLOR) { | |
136 | if (priority <= LOG_ERR) { | |
1fc464f6 LP |
137 | color_on = ANSI_HIGHLIGHT_RED; |
138 | color_off = ANSI_NORMAL; | |
31f7bf19 | 139 | } else if (priority <= LOG_NOTICE) { |
1fc464f6 LP |
140 | color_on = ANSI_HIGHLIGHT; |
141 | color_off = ANSI_NORMAL; | |
31f7bf19 ZJS |
142 | } |
143 | } | |
144 | ||
47d80904 UU |
145 | /* A special case: make sure that we print a newline when |
146 | the message is empty. */ | |
147 | if (message_len == 0) | |
148 | fputs("\n", f); | |
149 | ||
a6f0104a ZJS |
150 | for (pos = message; |
151 | pos < message + message_len; | |
152 | pos = end + 1, line++) { | |
153 | bool continuation = line > 0; | |
154 | bool tail_line; | |
31f7bf19 ZJS |
155 | int len; |
156 | for (end = pos; end < message + message_len && *end != '\n'; end++) | |
157 | ; | |
158 | len = end - pos; | |
159 | assert(len >= 0); | |
160 | ||
2526d626 | 161 | /* We need to figure out when we are showing not-last line, *and* |
a6f0104a ZJS |
162 | * will skip subsequent lines. In that case, we will put the dots |
163 | * at the end of the line, instead of putting dots in the middle | |
164 | * or not at all. | |
165 | */ | |
166 | tail_line = | |
167 | line + 1 == PRINT_LINE_THRESHOLD || | |
2526d626 | 168 | end + 1 >= message + PRINT_CHAR_THRESHOLD; |
a6f0104a ZJS |
169 | |
170 | if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) || | |
171 | (prefix + len + 1 < n_columns && !tail_line)) { | |
31f7bf19 ZJS |
172 | fprintf(f, "%*s%s%.*s%s\n", |
173 | continuation * prefix, "", | |
174 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
175 | continue; |
176 | } | |
31f7bf19 | 177 | |
a6f0104a ZJS |
178 | /* Beyond this point, ellipsization will happen. */ |
179 | ellipsized = true; | |
31f7bf19 | 180 | |
a6f0104a ZJS |
181 | if (prefix < n_columns && n_columns - prefix >= 3) { |
182 | if (n_columns - prefix > (unsigned) len + 3) | |
183 | fprintf(f, "%*s%s%.*s...%s\n", | |
b4b02cbe ZJS |
184 | continuation * prefix, "", |
185 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
186 | else { |
187 | _cleanup_free_ char *e; | |
188 | ||
189 | e = ellipsize_mem(pos, len, n_columns - prefix, | |
190 | tail_line ? 100 : 90); | |
191 | if (!e) | |
192 | fprintf(f, "%*s%s%.*s%s\n", | |
193 | continuation * prefix, "", | |
194 | color_on, len, pos, color_off); | |
195 | else | |
196 | fprintf(f, "%*s%s%s%s\n", | |
197 | continuation * prefix, "", | |
198 | color_on, e, color_off); | |
199 | } | |
200 | } else | |
31f7bf19 ZJS |
201 | fputs("...\n", f); |
202 | ||
a6f0104a ZJS |
203 | if (tail_line) |
204 | break; | |
31f7bf19 | 205 | } |
94e0bd7d ZJS |
206 | |
207 | return ellipsized; | |
31f7bf19 ZJS |
208 | } |
209 | ||
29a753df LP |
210 | static int output_timestamp_monotonic(FILE *f, sd_journal *j, const char *monotonic) { |
211 | sd_id128_t boot_id; | |
212 | uint64_t t; | |
213 | int r; | |
214 | ||
215 | assert(f); | |
216 | assert(j); | |
217 | ||
218 | r = -ENXIO; | |
219 | if (monotonic) | |
220 | r = safe_atou64(monotonic, &t); | |
221 | if (r < 0) | |
222 | r = sd_journal_get_monotonic_usec(j, &t, &boot_id); | |
223 | if (r < 0) | |
224 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
225 | ||
70887c5f | 226 | fprintf(f, "[%5"PRI_USEC".%06"PRI_USEC"]", t / USEC_PER_SEC, t % USEC_PER_SEC); |
29a753df LP |
227 | return 1 + 5 + 1 + 6 + 1; |
228 | } | |
229 | ||
230 | static int output_timestamp_realtime(FILE *f, sd_journal *j, OutputMode mode, OutputFlags flags, const char *realtime) { | |
231 | char buf[MAX(FORMAT_TIMESTAMP_MAX, 64)]; | |
232 | struct tm *(*gettime_r)(const time_t *, struct tm *); | |
233 | struct tm tm; | |
234 | uint64_t x; | |
235 | time_t t; | |
236 | int r; | |
237 | ||
238 | assert(f); | |
239 | assert(j); | |
240 | ||
241 | r = -ENXIO; | |
242 | if (realtime) | |
243 | r = safe_atou64(realtime, &x); | |
244 | if (r < 0) | |
245 | r = sd_journal_get_realtime_usec(j, &x); | |
246 | if (r < 0) | |
247 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
248 | ||
1bb4b028 LP |
249 | if (x > USEC_TIMESTAMP_FORMATTABLE_MAX) { |
250 | log_error("Timestamp cannot be printed"); | |
251 | return -EINVAL; | |
252 | } | |
253 | ||
29a753df LP |
254 | if (mode == OUTPUT_SHORT_FULL) { |
255 | const char *k; | |
256 | ||
257 | if (flags & OUTPUT_UTC) | |
258 | k = format_timestamp_utc(buf, sizeof(buf), x); | |
259 | else | |
260 | k = format_timestamp(buf, sizeof(buf), x); | |
261 | if (!k) { | |
262 | log_error("Failed to format timestamp."); | |
263 | return -EINVAL; | |
264 | } | |
265 | ||
266 | } else { | |
7e563bfc IW |
267 | char usec[7]; |
268 | ||
29a753df LP |
269 | gettime_r = (flags & OUTPUT_UTC) ? gmtime_r : localtime_r; |
270 | t = (time_t) (x / USEC_PER_SEC); | |
271 | ||
272 | switch (mode) { | |
273 | ||
274 | case OUTPUT_SHORT_UNIX: | |
70887c5f | 275 | xsprintf(buf, "%10"PRI_TIME".%06"PRIu64, t, x % USEC_PER_SEC); |
29a753df LP |
276 | break; |
277 | ||
278 | case OUTPUT_SHORT_ISO: | |
279 | if (strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", gettime_r(&t, &tm)) <= 0) { | |
7e563bfc IW |
280 | log_error("Failed to format ISO time"); |
281 | return -EINVAL; | |
282 | } | |
283 | break; | |
284 | ||
285 | case OUTPUT_SHORT_ISO_PRECISE: | |
286 | /* No usec in strftime, so we leave space and copy over */ | |
287 | if (strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S.xxxxxx%z", gettime_r(&t, &tm)) <= 0) { | |
288 | log_error("Failed to format ISO-precise time"); | |
29a753df LP |
289 | return -EINVAL; |
290 | } | |
7e563bfc IW |
291 | xsprintf(usec, "%06"PRI_USEC, x % USEC_PER_SEC); |
292 | memcpy(buf + 20, usec, 6); | |
29a753df LP |
293 | break; |
294 | ||
295 | case OUTPUT_SHORT: | |
296 | case OUTPUT_SHORT_PRECISE: | |
297 | ||
298 | if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)) <= 0) { | |
299 | log_error("Failed to format syslog time"); | |
300 | return -EINVAL; | |
301 | } | |
302 | ||
303 | if (mode == OUTPUT_SHORT_PRECISE) { | |
304 | size_t k; | |
305 | ||
306 | assert(sizeof(buf) > strlen(buf)); | |
307 | k = sizeof(buf) - strlen(buf); | |
308 | ||
70887c5f | 309 | r = snprintf(buf + strlen(buf), k, ".%06"PRIu64, x % USEC_PER_SEC); |
29a753df LP |
310 | if (r <= 0 || (size_t) r >= k) { /* too long? */ |
311 | log_error("Failed to format precise time"); | |
312 | return -EINVAL; | |
313 | } | |
314 | } | |
315 | break; | |
316 | ||
317 | default: | |
318 | assert_not_reached("Unknown time format"); | |
319 | } | |
320 | } | |
321 | ||
322 | fputs(buf, f); | |
323 | return (int) strlen(buf); | |
324 | } | |
325 | ||
08ace05b LP |
326 | static int output_short( |
327 | FILE *f, | |
328 | sd_journal *j, | |
329 | OutputMode mode, | |
330 | unsigned n_columns, | |
331 | OutputFlags flags) { | |
332 | ||
86aa7ba4 | 333 | int r; |
86aa7ba4 LP |
334 | const void *data; |
335 | size_t length; | |
336 | size_t n = 0; | |
08ace05b | 337 | _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; |
49826187 LP |
338 | 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; |
339 | int p = LOG_INFO; | |
94e0bd7d | 340 | bool ellipsized = false; |
86aa7ba4 | 341 | |
08ace05b | 342 | assert(f); |
86aa7ba4 LP |
343 | assert(j); |
344 | ||
a6f0104a | 345 | /* Set the threshold to one bigger than the actual print |
69ab8088 | 346 | * threshold, so that if the line is actually longer than what |
a6f0104a ZJS |
347 | * we're willing to print, ellipsization will occur. This way |
348 | * we won't output a misleading line without any indication of | |
349 | * truncation. | |
350 | */ | |
351 | sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1); | |
93b73b06 | 352 | |
a72b6353 | 353 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
55d7bfc1 | 354 | |
49826187 LP |
355 | r = parse_field(data, length, "PRIORITY=", &priority, &priority_len); |
356 | if (r < 0) | |
08ace05b | 357 | return r; |
49826187 LP |
358 | else if (r > 0) |
359 | continue; | |
360 | ||
55d7bfc1 LP |
361 | r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len); |
362 | if (r < 0) | |
08ace05b | 363 | return r; |
55d7bfc1 LP |
364 | else if (r > 0) |
365 | continue; | |
366 | ||
4cd9a9d9 | 367 | r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len); |
55d7bfc1 | 368 | if (r < 0) |
08ace05b | 369 | return r; |
55d7bfc1 LP |
370 | else if (r > 0) |
371 | continue; | |
372 | ||
373 | r = parse_field(data, length, "_COMM=", &comm, &comm_len); | |
374 | if (r < 0) | |
08ace05b | 375 | return r; |
55d7bfc1 LP |
376 | else if (r > 0) |
377 | continue; | |
378 | ||
379 | r = parse_field(data, length, "_PID=", &pid, &pid_len); | |
380 | if (r < 0) | |
08ace05b | 381 | return r; |
55d7bfc1 LP |
382 | else if (r > 0) |
383 | continue; | |
384 | ||
6c1e6b98 LP |
385 | r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len); |
386 | if (r < 0) | |
08ace05b | 387 | return r; |
6c1e6b98 LP |
388 | else if (r > 0) |
389 | continue; | |
390 | ||
bf967366 LP |
391 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len); |
392 | if (r < 0) | |
08ace05b | 393 | return r; |
bf967366 LP |
394 | else if (r > 0) |
395 | continue; | |
396 | ||
397 | r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len); | |
398 | if (r < 0) | |
08ace05b | 399 | return r; |
bf967366 LP |
400 | else if (r > 0) |
401 | continue; | |
402 | ||
55d7bfc1 LP |
403 | r = parse_field(data, length, "MESSAGE=", &message, &message_len); |
404 | if (r < 0) | |
08ace05b | 405 | return r; |
55d7bfc1 | 406 | } |
d00f1d57 LP |
407 | if (r == -EBADMSG) { |
408 | log_debug_errno(r, "Skipping message we can't read: %m"); | |
409 | return 0; | |
410 | } | |
a72b6353 | 411 | if (r < 0) |
b56d608e | 412 | return log_error_errno(r, "Failed to get journal fields: %m"); |
a72b6353 | 413 | |
07d21025 LP |
414 | if (!message) { |
415 | log_debug("Skipping message without MESSAGE= field."); | |
08ace05b | 416 | return 0; |
07d21025 | 417 | } |
55d7bfc1 | 418 | |
e8bc0ea2 LP |
419 | if (!(flags & OUTPUT_SHOW_ALL)) |
420 | strip_tab_ansi(&message, &message_len); | |
421 | ||
49826187 LP |
422 | if (priority_len == 1 && *priority >= '0' && *priority <= '7') |
423 | p = *priority - '0'; | |
424 | ||
29a753df LP |
425 | if (mode == OUTPUT_SHORT_MONOTONIC) |
426 | r = output_timestamp_monotonic(f, j, monotonic); | |
427 | else | |
428 | r = output_timestamp_realtime(f, j, mode, flags, realtime); | |
429 | if (r < 0) | |
430 | return r; | |
431 | n += r; | |
86aa7ba4 | 432 | |
29a753df | 433 | if (flags & OUTPUT_NO_HOSTNAME) { |
991e274b | 434 | /* Suppress display of the hostname if this is requested. */ |
12104159 | 435 | hostname = mfree(hostname); |
991e274b LP |
436 | hostname_len = 0; |
437 | } | |
438 | ||
08ace05b LP |
439 | if (hostname && shall_print(hostname, hostname_len, flags)) { |
440 | fprintf(f, " %.*s", (int) hostname_len, hostname); | |
55d7bfc1 LP |
441 | n += hostname_len + 1; |
442 | } | |
443 | ||
08ace05b LP |
444 | if (identifier && shall_print(identifier, identifier_len, flags)) { |
445 | fprintf(f, " %.*s", (int) identifier_len, identifier); | |
4cd9a9d9 | 446 | n += identifier_len + 1; |
08ace05b LP |
447 | } else if (comm && shall_print(comm, comm_len, flags)) { |
448 | fprintf(f, " %.*s", (int) comm_len, comm); | |
55d7bfc1 | 449 | n += comm_len + 1; |
b5936820 | 450 | } else |
1248e840 | 451 | fputs(" unknown", f); |
86aa7ba4 | 452 | |
08ace05b LP |
453 | if (pid && shall_print(pid, pid_len, flags)) { |
454 | fprintf(f, "[%.*s]", (int) pid_len, pid); | |
55d7bfc1 | 455 | n += pid_len + 2; |
08ace05b LP |
456 | } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { |
457 | fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); | |
6c1e6b98 | 458 | n += fake_pid_len + 2; |
86aa7ba4 LP |
459 | } |
460 | ||
31f7bf19 | 461 | if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { |
e6acda19 | 462 | char bytes[FORMAT_BYTES_MAX]; |
08ace05b | 463 | fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); |
31f7bf19 ZJS |
464 | } else { |
465 | fputs(": ", f); | |
94e0bd7d ZJS |
466 | ellipsized |= |
467 | print_multiline(f, n + 2, n_columns, flags, p, message, message_len); | |
31f7bf19 | 468 | } |
55d7bfc1 | 469 | |
d4205751 LP |
470 | if (flags & OUTPUT_CATALOG) |
471 | print_catalog(f, j); | |
472 | ||
94e0bd7d | 473 | return ellipsized; |
86aa7ba4 LP |
474 | } |
475 | ||
08ace05b LP |
476 | static int output_verbose( |
477 | FILE *f, | |
478 | sd_journal *j, | |
479 | OutputMode mode, | |
480 | unsigned n_columns, | |
481 | OutputFlags flags) { | |
482 | ||
86aa7ba4 LP |
483 | const void *data; |
484 | size_t length; | |
7fd1b19b | 485 | _cleanup_free_ char *cursor = NULL; |
d813d7a3 | 486 | uint64_t realtime = 0; |
f02d8367 | 487 | char ts[FORMAT_TIMESTAMP_MAX + 7]; |
8924973a | 488 | const char *timestamp; |
86aa7ba4 LP |
489 | int r; |
490 | ||
08ace05b | 491 | assert(f); |
86aa7ba4 LP |
492 | assert(j); |
493 | ||
93b73b06 LP |
494 | sd_journal_set_data_threshold(j, 0); |
495 | ||
cf40f0be ZJS |
496 | r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length); |
497 | if (r == -ENOENT) | |
498 | log_debug("Source realtime timestamp not found"); | |
b56d608e LP |
499 | else if (r < 0) |
500 | return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get source realtime timestamp: %m"); | |
501 | else { | |
cf40f0be | 502 | _cleanup_free_ char *value = NULL; |
cf40f0be | 503 | |
d813d7a3 | 504 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &value, NULL); |
cf40f0be | 505 | if (r < 0) |
e64c53fd | 506 | return r; |
d813d7a3 LP |
507 | assert(r > 0); |
508 | ||
509 | r = safe_atou64(value, &realtime); | |
510 | if (r < 0) | |
511 | log_debug_errno(r, "Failed to parse realtime timestamp: %m"); | |
cf40f0be ZJS |
512 | } |
513 | ||
514 | if (r < 0) { | |
515 | r = sd_journal_get_realtime_usec(j, &realtime); | |
b56d608e LP |
516 | if (r < 0) |
517 | return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
518 | } |
519 | ||
520 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
521 | if (r < 0) |
522 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 523 | |
8924973a ZJS |
524 | timestamp = flags & OUTPUT_UTC ? format_timestamp_us_utc(ts, sizeof ts, realtime) |
525 | : format_timestamp_us(ts, sizeof ts, realtime); | |
08ace05b | 526 | fprintf(f, "%s [%s]\n", |
8924973a | 527 | timestamp ?: "(no timestamp)", |
08ace05b | 528 | cursor); |
86aa7ba4 | 529 | |
a72b6353 | 530 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
31f7bf19 ZJS |
531 | const char *c; |
532 | int fieldlen; | |
7ac4fa7e ZJS |
533 | const char *on = "", *off = ""; |
534 | ||
31f7bf19 ZJS |
535 | c = memchr(data, '=', length); |
536 | if (!c) { | |
537 | log_error("Invalid field."); | |
538 | return -EINVAL; | |
539 | } | |
540 | fieldlen = c - (const char*) data; | |
86aa7ba4 | 541 | |
7ac4fa7e | 542 | if (flags & OUTPUT_COLOR && startswith(data, "MESSAGE=")) { |
1fc464f6 LP |
543 | on = ANSI_HIGHLIGHT; |
544 | off = ANSI_NORMAL; | |
7ac4fa7e ZJS |
545 | } |
546 | ||
8980058a | 547 | if ((flags & OUTPUT_SHOW_ALL) || |
a6f0104a ZJS |
548 | (((length < PRINT_CHAR_THRESHOLD) || flags & OUTPUT_FULL_WIDTH) |
549 | && utf8_is_printable(data, length))) { | |
7ac4fa7e | 550 | fprintf(f, " %s%.*s=", on, fieldlen, (const char*)data); |
31f7bf19 | 551 | print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1); |
7ac4fa7e | 552 | fputs(off, f); |
31f7bf19 ZJS |
553 | } else { |
554 | char bytes[FORMAT_BYTES_MAX]; | |
86aa7ba4 | 555 | |
7ac4fa7e ZJS |
556 | fprintf(f, " %s%.*s=[%s blob data]%s\n", |
557 | on, | |
31f7bf19 ZJS |
558 | (int) (c - (const char*) data), |
559 | (const char*) data, | |
7ac4fa7e ZJS |
560 | format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1), |
561 | off); | |
31f7bf19 | 562 | } |
86aa7ba4 LP |
563 | } |
564 | ||
a72b6353 ZJS |
565 | if (r < 0) |
566 | return r; | |
567 | ||
d4205751 LP |
568 | if (flags & OUTPUT_CATALOG) |
569 | print_catalog(f, j); | |
570 | ||
86aa7ba4 LP |
571 | return 0; |
572 | } | |
573 | ||
08ace05b LP |
574 | static int output_export( |
575 | FILE *f, | |
576 | sd_journal *j, | |
577 | OutputMode mode, | |
578 | unsigned n_columns, | |
579 | OutputFlags flags) { | |
580 | ||
86aa7ba4 LP |
581 | sd_id128_t boot_id; |
582 | char sid[33]; | |
583 | int r; | |
584 | usec_t realtime, monotonic; | |
7fd1b19b | 585 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
586 | const void *data; |
587 | size_t length; | |
588 | ||
589 | assert(j); | |
590 | ||
93b73b06 LP |
591 | sd_journal_set_data_threshold(j, 0); |
592 | ||
86aa7ba4 | 593 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
594 | if (r < 0) |
595 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
596 | |
597 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
598 | if (r < 0) |
599 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
600 | |
601 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
602 | if (r < 0) |
603 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 604 | |
08ace05b LP |
605 | fprintf(f, |
606 | "__CURSOR=%s\n" | |
de0671ee ZJS |
607 | "__REALTIME_TIMESTAMP="USEC_FMT"\n" |
608 | "__MONOTONIC_TIMESTAMP="USEC_FMT"\n" | |
08ace05b LP |
609 | "_BOOT_ID=%s\n", |
610 | cursor, | |
de0671ee ZJS |
611 | realtime, |
612 | monotonic, | |
08ace05b | 613 | sd_id128_to_string(boot_id, sid)); |
86aa7ba4 | 614 | |
a72b6353 | 615 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
86aa7ba4 | 616 | |
112301ae LP |
617 | /* We already printed the boot id, from the data in |
618 | * the header, hence let's suppress it here */ | |
619 | if (length >= 9 && | |
2a0e0692 | 620 | startswith(data, "_BOOT_ID=")) |
112301ae LP |
621 | continue; |
622 | ||
0ade5ffe ZJS |
623 | if (utf8_is_printable_newline(data, length, false)) |
624 | fwrite(data, length, 1, f); | |
625 | else { | |
86aa7ba4 LP |
626 | const char *c; |
627 | uint64_t le64; | |
628 | ||
629 | c = memchr(data, '=', length); | |
630 | if (!c) { | |
631 | log_error("Invalid field."); | |
632 | return -EINVAL; | |
633 | } | |
634 | ||
08ace05b LP |
635 | fwrite(data, c - (const char*) data, 1, f); |
636 | fputc('\n', f); | |
86aa7ba4 | 637 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
638 | fwrite(&le64, sizeof(le64), 1, f); |
639 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
0ade5ffe | 640 | } |
86aa7ba4 | 641 | |
08ace05b | 642 | fputc('\n', f); |
86aa7ba4 LP |
643 | } |
644 | ||
a72b6353 ZJS |
645 | if (r < 0) |
646 | return r; | |
647 | ||
08ace05b | 648 | fputc('\n', f); |
86aa7ba4 LP |
649 | |
650 | return 0; | |
651 | } | |
652 | ||
240a5fe8 | 653 | void json_escape( |
08ace05b LP |
654 | FILE *f, |
655 | const char* p, | |
656 | size_t l, | |
657 | OutputFlags flags) { | |
658 | ||
659 | assert(f); | |
660 | assert(p); | |
661 | ||
93b73b06 | 662 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
663 | fputs("null", f); |
664 | ||
8980058a | 665 | else if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(p, l)) { |
86aa7ba4 LP |
666 | bool not_first = false; |
667 | ||
08ace05b | 668 | fputs("[ ", f); |
86aa7ba4 LP |
669 | |
670 | while (l > 0) { | |
671 | if (not_first) | |
08ace05b | 672 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
673 | else { |
674 | not_first = true; | |
08ace05b | 675 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
676 | } |
677 | ||
678 | p++; | |
679 | l--; | |
680 | } | |
681 | ||
08ace05b | 682 | fputs(" ]", f); |
86aa7ba4 | 683 | } else { |
08ace05b | 684 | fputc('\"', f); |
86aa7ba4 LP |
685 | |
686 | while (l > 0) { | |
687 | if (*p == '"' || *p == '\\') { | |
08ace05b LP |
688 | fputc('\\', f); |
689 | fputc(*p, f); | |
31f7bf19 ZJS |
690 | } else if (*p == '\n') |
691 | fputs("\\n", f); | |
91a8a108 DM |
692 | else if ((uint8_t) *p < ' ') |
693 | fprintf(f, "\\u%04x", (uint8_t) *p); | |
08ace05b LP |
694 | else |
695 | fputc(*p, f); | |
86aa7ba4 LP |
696 | |
697 | p++; | |
698 | l--; | |
699 | } | |
700 | ||
08ace05b | 701 | fputc('\"', f); |
86aa7ba4 LP |
702 | } |
703 | } | |
704 | ||
08ace05b LP |
705 | static int output_json( |
706 | FILE *f, | |
707 | sd_journal *j, | |
708 | OutputMode mode, | |
709 | unsigned n_columns, | |
710 | OutputFlags flags) { | |
711 | ||
86aa7ba4 | 712 | uint64_t realtime, monotonic; |
7fd1b19b | 713 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
714 | const void *data; |
715 | size_t length; | |
716 | sd_id128_t boot_id; | |
2e729834 | 717 | char sid[33], *k; |
86aa7ba4 | 718 | int r; |
d99ae53a LP |
719 | Hashmap *h = NULL; |
720 | bool done, separator; | |
86aa7ba4 LP |
721 | |
722 | assert(j); | |
723 | ||
93b73b06 LP |
724 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
725 | ||
86aa7ba4 | 726 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
727 | if (r < 0) |
728 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
729 | |
730 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
731 | if (r < 0) |
732 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
733 | |
734 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
735 | if (r < 0) |
736 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 737 | |
a6e87e90 | 738 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
739 | fprintf(f, |
740 | "{\n" | |
741 | "\t\"__CURSOR\" : \"%s\",\n" | |
de0671ee ZJS |
742 | "\t\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\",\n" |
743 | "\t\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\",\n" | |
08ace05b LP |
744 | "\t\"_BOOT_ID\" : \"%s\"", |
745 | cursor, | |
de0671ee ZJS |
746 | realtime, |
747 | monotonic, | |
08ace05b | 748 | sd_id128_to_string(boot_id, sid)); |
48383c25 LP |
749 | else { |
750 | if (mode == OUTPUT_JSON_SSE) | |
751 | fputs("data: ", f); | |
752 | ||
08ace05b LP |
753 | fprintf(f, |
754 | "{ \"__CURSOR\" : \"%s\", " | |
de0671ee ZJS |
755 | "\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\", " |
756 | "\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\", " | |
08ace05b LP |
757 | "\"_BOOT_ID\" : \"%s\"", |
758 | cursor, | |
de0671ee ZJS |
759 | realtime, |
760 | monotonic, | |
08ace05b | 761 | sd_id128_to_string(boot_id, sid)); |
48383c25 | 762 | } |
86aa7ba4 | 763 | |
d5099efc | 764 | h = hashmap_new(&string_hash_ops); |
d99ae53a | 765 | if (!h) |
b56d608e | 766 | return log_oom(); |
d99ae53a LP |
767 | |
768 | /* First round, iterate through the entry and count how often each field appears */ | |
a72b6353 | 769 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
d99ae53a LP |
770 | const char *eq; |
771 | char *n; | |
772 | unsigned u; | |
86aa7ba4 | 773 | |
112301ae LP |
774 | if (length >= 9 && |
775 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
776 | continue; | |
777 | ||
d99ae53a LP |
778 | eq = memchr(data, '=', length); |
779 | if (!eq) | |
780 | continue; | |
86aa7ba4 | 781 | |
d99ae53a LP |
782 | n = strndup(data, eq - (const char*) data); |
783 | if (!n) { | |
b56d608e | 784 | r = log_oom(); |
d99ae53a LP |
785 | goto finish; |
786 | } | |
a6e87e90 | 787 | |
d99ae53a LP |
788 | u = PTR_TO_UINT(hashmap_get(h, n)); |
789 | if (u == 0) { | |
790 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
791 | if (r < 0) { | |
792 | free(n); | |
b56d608e | 793 | log_oom(); |
d99ae53a LP |
794 | goto finish; |
795 | } | |
796 | } else { | |
797 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
798 | free(n); | |
b56d608e LP |
799 | if (r < 0) { |
800 | log_oom(); | |
d99ae53a | 801 | goto finish; |
b56d608e | 802 | } |
d99ae53a | 803 | } |
86aa7ba4 LP |
804 | } |
805 | ||
a72b6353 ZJS |
806 | if (r < 0) |
807 | return r; | |
808 | ||
d99ae53a LP |
809 | separator = true; |
810 | do { | |
811 | done = true; | |
812 | ||
813 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
814 | const char *eq; | |
815 | char *kk, *n; | |
816 | size_t m; | |
817 | unsigned u; | |
818 | ||
819 | /* We already printed the boot id, from the data in | |
820 | * the header, hence let's suppress it here */ | |
821 | if (length >= 9 && | |
822 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
823 | continue; | |
824 | ||
825 | eq = memchr(data, '=', length); | |
826 | if (!eq) | |
827 | continue; | |
828 | ||
829 | if (separator) { | |
830 | if (mode == OUTPUT_JSON_PRETTY) | |
831 | fputs(",\n\t", f); | |
832 | else | |
833 | fputs(", ", f); | |
834 | } | |
835 | ||
836 | m = eq - (const char*) data; | |
837 | ||
838 | n = strndup(data, m); | |
839 | if (!n) { | |
b56d608e | 840 | r = log_oom(); |
d99ae53a LP |
841 | goto finish; |
842 | } | |
843 | ||
844 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); | |
845 | if (u == 0) { | |
846 | /* We already printed this, let's jump to the next */ | |
847 | free(n); | |
848 | separator = false; | |
849 | ||
850 | continue; | |
851 | } else if (u == 1) { | |
852 | /* Field only appears once, output it directly */ | |
853 | ||
854 | json_escape(f, data, m, flags); | |
855 | fputs(" : ", f); | |
856 | ||
857 | json_escape(f, eq + 1, length - m - 1, flags); | |
858 | ||
859 | hashmap_remove(h, n); | |
860 | free(kk); | |
861 | free(n); | |
862 | ||
863 | separator = true; | |
864 | ||
865 | continue; | |
866 | ||
867 | } else { | |
868 | /* Field appears multiple times, output it as array */ | |
869 | json_escape(f, data, m, flags); | |
870 | fputs(" : [ ", f); | |
871 | json_escape(f, eq + 1, length - m - 1, flags); | |
872 | ||
873 | /* Iterate through the end of the list */ | |
874 | ||
875 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
876 | if (length < m + 1) | |
877 | continue; | |
878 | ||
879 | if (memcmp(data, n, m) != 0) | |
880 | continue; | |
881 | ||
882 | if (((const char*) data)[m] != '=') | |
883 | continue; | |
884 | ||
885 | fputs(", ", f); | |
886 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
887 | } | |
888 | ||
889 | fputs(" ]", f); | |
890 | ||
891 | hashmap_remove(h, n); | |
892 | free(kk); | |
893 | free(n); | |
894 | ||
895 | /* Iterate data fields form the beginning */ | |
896 | done = false; | |
897 | separator = true; | |
898 | ||
899 | break; | |
900 | } | |
901 | } | |
902 | ||
903 | } while (!done); | |
904 | ||
a6e87e90 | 905 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 906 | fputs("\n}\n", f); |
48383c25 LP |
907 | else if (mode == OUTPUT_JSON_SSE) |
908 | fputs("}\n\n", f); | |
a6e87e90 | 909 | else |
08ace05b | 910 | fputs(" }\n", f); |
86aa7ba4 | 911 | |
d99ae53a LP |
912 | r = 0; |
913 | ||
914 | finish: | |
915 | while ((k = hashmap_steal_first_key(h))) | |
916 | free(k); | |
917 | ||
918 | hashmap_free(h); | |
919 | ||
920 | return r; | |
86aa7ba4 LP |
921 | } |
922 | ||
08ace05b LP |
923 | static int output_cat( |
924 | FILE *f, | |
925 | sd_journal *j, | |
926 | OutputMode mode, | |
927 | unsigned n_columns, | |
928 | OutputFlags flags) { | |
929 | ||
d3f2bdbf LP |
930 | const void *data; |
931 | size_t l; | |
932 | int r; | |
933 | ||
934 | assert(j); | |
08ace05b | 935 | assert(f); |
d3f2bdbf | 936 | |
93b73b06 LP |
937 | sd_journal_set_data_threshold(j, 0); |
938 | ||
d3f2bdbf LP |
939 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
940 | if (r < 0) { | |
c198300f LP |
941 | /* An entry without MESSAGE=? */ |
942 | if (r == -ENOENT) | |
943 | return 0; | |
944 | ||
8d3d7072 | 945 | return log_error_errno(r, "Failed to get data: %m"); |
d3f2bdbf LP |
946 | } |
947 | ||
948 | assert(l >= 8); | |
949 | ||
08ace05b LP |
950 | fwrite((const char*) data + 8, 1, l - 8, f); |
951 | fputc('\n', f); | |
d3f2bdbf LP |
952 | |
953 | return 0; | |
954 | } | |
955 | ||
08ace05b LP |
956 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
957 | FILE *f, | |
958 | sd_journal*j, | |
959 | OutputMode mode, | |
960 | unsigned n_columns, | |
961 | OutputFlags flags) = { | |
962 | ||
a6e87e90 | 963 | [OUTPUT_SHORT] = output_short, |
44bc6e1f | 964 | [OUTPUT_SHORT_ISO] = output_short, |
7e563bfc | 965 | [OUTPUT_SHORT_ISO_PRECISE] = output_short, |
f02d8367 ZJS |
966 | [OUTPUT_SHORT_PRECISE] = output_short, |
967 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
bb321ed9 | 968 | [OUTPUT_SHORT_UNIX] = output_short, |
29a753df | 969 | [OUTPUT_SHORT_FULL] = output_short, |
86aa7ba4 LP |
970 | [OUTPUT_VERBOSE] = output_verbose, |
971 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 972 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 973 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 974 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 975 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
976 | }; |
977 | ||
08ace05b LP |
978 | int output_journal( |
979 | FILE *f, | |
980 | sd_journal *j, | |
981 | OutputMode mode, | |
982 | unsigned n_columns, | |
94e0bd7d ZJS |
983 | OutputFlags flags, |
984 | bool *ellipsized) { | |
08ace05b | 985 | |
e268b81e | 986 | int ret; |
df50185b | 987 | assert(mode >= 0); |
86aa7ba4 LP |
988 | assert(mode < _OUTPUT_MODE_MAX); |
989 | ||
34a35ece LP |
990 | if (n_columns <= 0) |
991 | n_columns = columns(); | |
992 | ||
08ace05b | 993 | ret = output_funcs[mode](f, j, mode, n_columns, flags); |
94e0bd7d ZJS |
994 | |
995 | if (ellipsized && ret > 0) | |
996 | *ellipsized = true; | |
997 | ||
e268b81e | 998 | return ret; |
86aa7ba4 LP |
999 | } |
1000 | ||
ea6c2dd1 LP |
1001 | static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) { |
1002 | assert(f); | |
1003 | assert(flags); | |
1004 | ||
1005 | if (!(*flags & OUTPUT_BEGIN_NEWLINE)) | |
1006 | return 0; | |
1007 | ||
1008 | /* Print a beginning new line if that's request, but only once | |
1009 | * on the first line we print. */ | |
1010 | ||
1011 | fputc('\n', f); | |
1012 | *flags &= ~OUTPUT_BEGIN_NEWLINE; | |
1013 | return 0; | |
1014 | } | |
1015 | ||
1a6c43e9 MT |
1016 | static int show_journal(FILE *f, |
1017 | sd_journal *j, | |
1018 | OutputMode mode, | |
1019 | unsigned n_columns, | |
1020 | usec_t not_before, | |
1021 | unsigned how_many, | |
94e0bd7d ZJS |
1022 | OutputFlags flags, |
1023 | bool *ellipsized) { | |
86aa7ba4 | 1024 | |
86aa7ba4 | 1025 | int r; |
df50185b LP |
1026 | unsigned line = 0; |
1027 | bool need_seek = false; | |
085d7120 | 1028 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 1029 | |
1a6c43e9 | 1030 | assert(j); |
df50185b LP |
1031 | assert(mode >= 0); |
1032 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
1033 | |
1034 | /* Seek to end */ | |
86aa7ba4 LP |
1035 | r = sd_journal_seek_tail(j); |
1036 | if (r < 0) | |
b56d608e | 1037 | return log_error_errno(r, "Failed to seek to tail: %m"); |
86aa7ba4 | 1038 | |
df50185b LP |
1039 | r = sd_journal_previous_skip(j, how_many); |
1040 | if (r < 0) | |
b56d608e | 1041 | return log_error_errno(r, "Failed to skip previous: %m"); |
86aa7ba4 | 1042 | |
df50185b LP |
1043 | for (;;) { |
1044 | for (;;) { | |
1045 | usec_t usec; | |
1046 | ||
1047 | if (need_seek) { | |
1048 | r = sd_journal_next(j); | |
1049 | if (r < 0) | |
b56d608e | 1050 | return log_error_errno(r, "Failed to iterate through journal: %m"); |
df50185b LP |
1051 | } |
1052 | ||
1053 | if (r == 0) | |
1054 | break; | |
86aa7ba4 | 1055 | |
df50185b LP |
1056 | need_seek = true; |
1057 | ||
1058 | if (not_before > 0) { | |
1059 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
1060 | ||
1061 | /* -ESTALE is returned if the | |
1062 | timestamp is not from this boot */ | |
1063 | if (r == -ESTALE) | |
1064 | continue; | |
1065 | else if (r < 0) | |
b56d608e | 1066 | return log_error_errno(r, "Failed to get journal time: %m"); |
df50185b LP |
1067 | |
1068 | if (usec < not_before) | |
1069 | continue; | |
1070 | } | |
1071 | ||
313cefa1 | 1072 | line++; |
ea6c2dd1 | 1073 | maybe_print_begin_newline(f, &flags); |
df50185b | 1074 | |
94e0bd7d | 1075 | r = output_journal(f, j, mode, n_columns, flags, ellipsized); |
df50185b | 1076 | if (r < 0) |
b56d608e | 1077 | return r; |
df50185b LP |
1078 | } |
1079 | ||
08984293 LP |
1080 | if (warn_cutoff && line < how_many && not_before > 0) { |
1081 | sd_id128_t boot_id; | |
a7f7d1bd | 1082 | usec_t cutoff = 0; |
08984293 LP |
1083 | |
1084 | /* Check whether the cutoff line is too early */ | |
1085 | ||
1086 | r = sd_id128_get_boot(&boot_id); | |
1087 | if (r < 0) | |
b56d608e | 1088 | return log_error_errno(r, "Failed to get boot id: %m"); |
08984293 LP |
1089 | |
1090 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
1091 | if (r < 0) | |
b56d608e | 1092 | return log_error_errno(r, "Failed to get journal cutoff time: %m"); |
08984293 | 1093 | |
ea6c2dd1 LP |
1094 | if (r > 0 && not_before < cutoff) { |
1095 | maybe_print_begin_newline(f, &flags); | |
08ace05b | 1096 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
ea6c2dd1 | 1097 | } |
08984293 LP |
1098 | |
1099 | warn_cutoff = false; | |
1100 | } | |
1101 | ||
085d7120 | 1102 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
1103 | break; |
1104 | ||
3a43da28 | 1105 | r = sd_journal_wait(j, USEC_INFINITY); |
df50185b | 1106 | if (r < 0) |
b56d608e | 1107 | return log_error_errno(r, "Failed to wait for journal: %m"); |
df50185b | 1108 | |
86aa7ba4 LP |
1109 | } |
1110 | ||
b56d608e | 1111 | return 0; |
1a6c43e9 MT |
1112 | } |
1113 | ||
886a64fe | 1114 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
2b45d881 | 1115 | const char *m1, *m2, *m3, *m4; |
1a6c43e9 MT |
1116 | int r; |
1117 | ||
886a64fe | 1118 | assert(j); |
1a6c43e9 MT |
1119 | assert(unit); |
1120 | ||
63c372cb LP |
1121 | m1 = strjoina("_SYSTEMD_UNIT=", unit); |
1122 | m2 = strjoina("COREDUMP_UNIT=", unit); | |
1123 | m3 = strjoina("UNIT=", unit); | |
1124 | m4 = strjoina("OBJECT_SYSTEMD_UNIT=", unit); | |
1a6c43e9 | 1125 | |
886a64fe ZJS |
1126 | (void)( |
1127 | /* Look for messages from the service itself */ | |
1128 | (r = sd_journal_add_match(j, m1, 0)) || | |
1129 | ||
1130 | /* Look for coredumps of the service */ | |
1131 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df ZJS |
1132 | (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || |
1133 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
886a64fe ZJS |
1134 | (r = sd_journal_add_match(j, m2, 0)) || |
1135 | ||
1136 | /* Look for messages from PID 1 about this service */ | |
1137 | (r = sd_journal_add_disjunction(j)) || | |
1138 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
2d0b2e87 ZJS |
1139 | (r = sd_journal_add_match(j, m3, 0)) || |
1140 | ||
1141 | /* Look for messages from authorized daemons about this service */ | |
1142 | (r = sd_journal_add_disjunction(j)) || | |
1143 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1144 | (r = sd_journal_add_match(j, m4, 0)) | |
886a64fe | 1145 | ); |
2d0b2e87 | 1146 | |
69ae3ee0 | 1147 | if (r == 0 && endswith(unit, ".slice")) { |
2b45d881 LP |
1148 | const char *m5; |
1149 | ||
1150 | m5 = strjoina("_SYSTEMD_SLICE=", unit); | |
69ae3ee0 ZJS |
1151 | |
1152 | /* Show all messages belonging to a slice */ | |
1153 | (void)( | |
1154 | (r = sd_journal_add_disjunction(j)) || | |
1155 | (r = sd_journal_add_match(j, m5, 0)) | |
1156 | ); | |
1157 | } | |
1158 | ||
886a64fe ZJS |
1159 | return r; |
1160 | } | |
1a6c43e9 | 1161 | |
886a64fe ZJS |
1162 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
1163 | int r; | |
2d0b2e87 ZJS |
1164 | char *m1, *m2, *m3, *m4; |
1165 | char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
1a6c43e9 | 1166 | |
886a64fe ZJS |
1167 | assert(j); |
1168 | assert(unit); | |
1a6c43e9 | 1169 | |
63c372cb LP |
1170 | m1 = strjoina("_SYSTEMD_USER_UNIT=", unit); |
1171 | m2 = strjoina("USER_UNIT=", unit); | |
1172 | m3 = strjoina("COREDUMP_USER_UNIT=", unit); | |
1173 | m4 = strjoina("OBJECT_SYSTEMD_USER_UNIT=", unit); | |
de0671ee | 1174 | sprintf(muid, "_UID="UID_FMT, uid); |
1a6c43e9 | 1175 | |
886a64fe ZJS |
1176 | (void) ( |
1177 | /* Look for messages from the user service itself */ | |
1178 | (r = sd_journal_add_match(j, m1, 0)) || | |
2d0b2e87 | 1179 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1180 | |
1181 | /* Look for messages from systemd about this service */ | |
1182 | (r = sd_journal_add_disjunction(j)) || | |
1183 | (r = sd_journal_add_match(j, m2, 0)) || | |
2d0b2e87 | 1184 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1185 | |
1186 | /* Look for coredumps of the service */ | |
1187 | (r = sd_journal_add_disjunction(j)) || | |
1188 | (r = sd_journal_add_match(j, m3, 0)) || | |
2d0b2e87 ZJS |
1189 | (r = sd_journal_add_match(j, muid, 0)) || |
1190 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1191 | ||
1192 | /* Look for messages from authorized daemons about this service */ | |
1193 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df | 1194 | (r = sd_journal_add_match(j, m4, 0)) || |
2d0b2e87 | 1195 | (r = sd_journal_add_match(j, muid, 0)) || |
fdcd37df | 1196 | (r = sd_journal_add_match(j, "_UID=0", 0)) |
886a64fe | 1197 | ); |
69ae3ee0 ZJS |
1198 | |
1199 | if (r == 0 && endswith(unit, ".slice")) { | |
2b45d881 LP |
1200 | const char *m5; |
1201 | ||
1202 | m5 = strjoina("_SYSTEMD_SLICE=", unit); | |
69ae3ee0 ZJS |
1203 | |
1204 | /* Show all messages belonging to a slice */ | |
1205 | (void)( | |
1206 | (r = sd_journal_add_disjunction(j)) || | |
1207 | (r = sd_journal_add_match(j, m5, 0)) || | |
1208 | (r = sd_journal_add_match(j, muid, 0)) | |
1209 | ); | |
1210 | } | |
1211 | ||
1a6c43e9 MT |
1212 | return r; |
1213 | } | |
1214 | ||
b6741478 | 1215 | static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { |
3d94f76c | 1216 | _cleanup_close_pair_ int pair[2] = { -1, -1 }; |
a4475f57 | 1217 | _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; |
b6741478 LP |
1218 | pid_t pid, child; |
1219 | siginfo_t si; | |
1220 | char buf[37]; | |
1221 | ssize_t k; | |
1222 | int r; | |
1223 | ||
1224 | assert(machine); | |
1225 | assert(boot_id); | |
1226 | ||
affcf189 | 1227 | if (!machine_name_is_valid(machine)) |
b6741478 LP |
1228 | return -EINVAL; |
1229 | ||
e04b0cdb | 1230 | r = container_get_leader(machine, &pid); |
b6741478 LP |
1231 | if (r < 0) |
1232 | return r; | |
e04b0cdb | 1233 | |
671c3419 | 1234 | r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, NULL, &rootfd); |
b6741478 LP |
1235 | if (r < 0) |
1236 | return r; | |
1237 | ||
e04b0cdb | 1238 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) |
b6741478 LP |
1239 | return -errno; |
1240 | ||
1241 | child = fork(); | |
1242 | if (child < 0) | |
1243 | return -errno; | |
1244 | ||
1245 | if (child == 0) { | |
1246 | int fd; | |
1247 | ||
03e334a1 | 1248 | pair[0] = safe_close(pair[0]); |
b6741478 | 1249 | |
671c3419 | 1250 | r = namespace_enter(pidnsfd, mntnsfd, -1, -1, rootfd); |
b6741478 LP |
1251 | if (r < 0) |
1252 | _exit(EXIT_FAILURE); | |
1253 | ||
1254 | fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1255 | if (fd < 0) | |
1256 | _exit(EXIT_FAILURE); | |
1257 | ||
a6dcc7e5 | 1258 | r = loop_read_exact(fd, buf, 36, false); |
03e334a1 | 1259 | safe_close(fd); |
6c767d1e | 1260 | if (r < 0) |
b6741478 LP |
1261 | _exit(EXIT_FAILURE); |
1262 | ||
e04b0cdb | 1263 | k = send(pair[1], buf, 36, MSG_NOSIGNAL); |
b6741478 LP |
1264 | if (k != 36) |
1265 | _exit(EXIT_FAILURE); | |
1266 | ||
1267 | _exit(EXIT_SUCCESS); | |
1268 | } | |
1269 | ||
03e334a1 | 1270 | pair[1] = safe_close(pair[1]); |
b6741478 | 1271 | |
b6741478 LP |
1272 | r = wait_for_terminate(child, &si); |
1273 | if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) | |
1274 | return r < 0 ? r : -EIO; | |
1275 | ||
fbadf045 LP |
1276 | k = recv(pair[0], buf, 36, 0); |
1277 | if (k != 36) | |
1278 | return -EIO; | |
1279 | ||
b6741478 LP |
1280 | buf[36] = 0; |
1281 | r = sd_id128_from_string(buf, boot_id); | |
1282 | if (r < 0) | |
1283 | return r; | |
1284 | ||
1285 | return 0; | |
1286 | } | |
1287 | ||
1288 | int add_match_this_boot(sd_journal *j, const char *machine) { | |
5ec76417 ZJS |
1289 | char match[9+32+1] = "_BOOT_ID="; |
1290 | sd_id128_t boot_id; | |
1291 | int r; | |
1292 | ||
1293 | assert(j); | |
1294 | ||
b6741478 LP |
1295 | if (machine) { |
1296 | r = get_boot_id_for_machine(machine, &boot_id); | |
f647962d MS |
1297 | if (r < 0) |
1298 | return log_error_errno(r, "Failed to get boot id of container %s: %m", machine); | |
b6741478 LP |
1299 | } else { |
1300 | r = sd_id128_get_boot(&boot_id); | |
f647962d MS |
1301 | if (r < 0) |
1302 | return log_error_errno(r, "Failed to get boot id: %m"); | |
5ec76417 ZJS |
1303 | } |
1304 | ||
1305 | sd_id128_to_string(boot_id, match + 9); | |
1306 | r = sd_journal_add_match(j, match, strlen(match)); | |
f647962d MS |
1307 | if (r < 0) |
1308 | return log_error_errno(r, "Failed to add match: %m"); | |
5ec76417 ZJS |
1309 | |
1310 | r = sd_journal_add_conjunction(j); | |
1311 | if (r < 0) | |
b56d608e | 1312 | return log_error_errno(r, "Failed to add conjunction: %m"); |
5ec76417 ZJS |
1313 | |
1314 | return 0; | |
1315 | } | |
1316 | ||
886a64fe | 1317 | int show_journal_by_unit( |
1a6c43e9 MT |
1318 | FILE *f, |
1319 | const char *unit, | |
1320 | OutputMode mode, | |
1321 | unsigned n_columns, | |
1322 | usec_t not_before, | |
1323 | unsigned how_many, | |
1324 | uid_t uid, | |
886a64fe | 1325 | OutputFlags flags, |
3c756001 LP |
1326 | int journal_open_flags, |
1327 | bool system_unit, | |
94e0bd7d | 1328 | bool *ellipsized) { |
1a6c43e9 | 1329 | |
4afd3348 | 1330 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
1a6c43e9 MT |
1331 | int r; |
1332 | ||
1333 | assert(mode >= 0); | |
1334 | assert(mode < _OUTPUT_MODE_MAX); | |
1335 | assert(unit); | |
1336 | ||
1a6c43e9 MT |
1337 | if (how_many <= 0) |
1338 | return 0; | |
1339 | ||
3c756001 | 1340 | r = sd_journal_open(&j, journal_open_flags); |
f9045468 | 1341 | if (r < 0) |
b56d608e | 1342 | return log_error_errno(r, "Failed to open journal: %m"); |
f9045468 | 1343 | |
b6741478 | 1344 | r = add_match_this_boot(j, NULL); |
5ec76417 ZJS |
1345 | if (r < 0) |
1346 | return r; | |
1347 | ||
3c756001 | 1348 | if (system_unit) |
886a64fe ZJS |
1349 | r = add_matches_for_unit(j, unit); |
1350 | else | |
1351 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1352 | if (r < 0) |
b56d608e | 1353 | return log_error_errno(r, "Failed to add unit matches: %m"); |
1a6c43e9 | 1354 | |
553d2243 | 1355 | if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { |
4ad16808 ZJS |
1356 | _cleanup_free_ char *filter; |
1357 | ||
1358 | filter = journal_make_match_string(j); | |
b56d608e LP |
1359 | if (!filter) |
1360 | return log_oom(); | |
1361 | ||
4ad16808 ZJS |
1362 | log_debug("Journal filter: %s", filter); |
1363 | } | |
5ec76417 | 1364 | |
94e0bd7d | 1365 | return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); |
86aa7ba4 | 1366 | } |