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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
86aa7ba4 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2012 Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
8 | under the terms of the GNU Lesser General Public License as published by |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
86aa7ba4 LP |
10 | (at your option) any later version. |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 15 | Lesser General Public License for more details. |
86aa7ba4 | 16 | |
5430f7f2 | 17 | You should have received a copy of the GNU Lesser General Public License |
86aa7ba4 LP |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
19 | ***/ | |
20 | ||
86aa7ba4 | 21 | #include <errno.h> |
b6741478 | 22 | #include <fcntl.h> |
a8fbdf54 TA |
23 | #include <signal.h> |
24 | #include <stdint.h> | |
25 | #include <stdlib.h> | |
07630cea LP |
26 | #include <string.h> |
27 | #include <sys/socket.h> | |
a8fbdf54 | 28 | #include <syslog.h> |
07630cea | 29 | #include <time.h> |
a8fbdf54 TA |
30 | #include <unistd.h> |
31 | ||
32 | #include "sd-id128.h" | |
33 | #include "sd-journal.h" | |
86aa7ba4 | 34 | |
b5efdb8a | 35 | #include "alloc-util.h" |
3ffd4af2 | 36 | #include "fd-util.h" |
f97b34a6 | 37 | #include "format-util.h" |
d99ae53a | 38 | #include "hashmap.h" |
07630cea | 39 | #include "hostname-util.h" |
c004493c | 40 | #include "io-util.h" |
dfb33a97 | 41 | #include "journal-internal.h" |
07630cea | 42 | #include "log.h" |
3ffd4af2 | 43 | #include "logs-show.h" |
a8fbdf54 TA |
44 | #include "macro.h" |
45 | #include "output-mode.h" | |
6bedfcbb | 46 | #include "parse-util.h" |
0b452006 | 47 | #include "process-util.h" |
a8fbdf54 | 48 | #include "sparse-endian.h" |
29a753df | 49 | #include "stdio-util.h" |
8b43440b | 50 | #include "string-table.h" |
07630cea | 51 | #include "string-util.h" |
cc25a67e | 52 | #include "strv.h" |
288a74cc | 53 | #include "terminal-util.h" |
a8fbdf54 | 54 | #include "time-util.h" |
07630cea LP |
55 | #include "utf8.h" |
56 | #include "util.h" | |
86aa7ba4 | 57 | |
07630cea | 58 | /* up to three lines (each up to 100 characters) or 300 characters, whichever is less */ |
a6f0104a ZJS |
59 | #define PRINT_LINE_THRESHOLD 3 |
60 | #define PRINT_CHAR_THRESHOLD 300 | |
61 | ||
08ace05b | 62 | #define JSON_THRESHOLD 4096 |
86aa7ba4 | 63 | |
d4205751 LP |
64 | static int print_catalog(FILE *f, sd_journal *j) { |
65 | int r; | |
66 | _cleanup_free_ char *t = NULL, *z = NULL; | |
67 | ||
68 | ||
69 | r = sd_journal_get_catalog(j, &t); | |
70 | if (r < 0) | |
71 | return r; | |
72 | ||
73 | z = strreplace(strstrip(t), "\n", "\n-- "); | |
74 | if (!z) | |
75 | return log_oom(); | |
76 | ||
77 | fputs("-- ", f); | |
78 | fputs(z, f); | |
79 | fputc('\n', f); | |
80 | ||
81 | return 0; | |
82 | } | |
83 | ||
ed054520 VC |
84 | static int parse_field(const void *data, size_t length, const char *field, size_t field_len, char **target, size_t *target_len) { |
85 | size_t nl; | |
d813d7a3 | 86 | char *buf; |
55d7bfc1 LP |
87 | |
88 | assert(data); | |
89 | assert(field); | |
90 | assert(target); | |
55d7bfc1 | 91 | |
ed054520 | 92 | if (length < field_len) |
55d7bfc1 LP |
93 | return 0; |
94 | ||
ed054520 | 95 | if (memcmp(data, field, field_len)) |
55d7bfc1 LP |
96 | return 0; |
97 | ||
ed054520 | 98 | nl = length - field_len; |
c165d97d LP |
99 | |
100 | ||
ed054520 | 101 | buf = newdup_suffix0(char, (const char*) data + field_len, nl); |
0d0f0c50 SL |
102 | if (!buf) |
103 | return log_oom(); | |
55d7bfc1 | 104 | |
6c1e6b98 | 105 | free(*target); |
55d7bfc1 | 106 | *target = buf; |
d813d7a3 | 107 | |
ed054520 VC |
108 | if (target_len) |
109 | *target_len = nl; | |
55d7bfc1 LP |
110 | |
111 | return 1; | |
112 | } | |
113 | ||
ed054520 VC |
114 | typedef struct ParseFieldVec { |
115 | const char *field; | |
116 | size_t field_len; | |
117 | char **target; | |
118 | size_t *target_len; | |
119 | } ParseFieldVec; | |
120 | ||
121 | #define PARSE_FIELD_VEC_ENTRY(_field, _target, _target_len) \ | |
122 | { .field = _field, .field_len = strlen(_field), .target = _target, .target_len = _target_len } | |
123 | ||
124 | static int parse_fieldv(const void *data, size_t length, const ParseFieldVec *fields, unsigned n_fields) { | |
125 | unsigned i; | |
126 | ||
127 | for (i = 0; i < n_fields; i++) { | |
128 | const ParseFieldVec *f = &fields[i]; | |
129 | int r; | |
130 | ||
131 | r = parse_field(data, length, f->field, f->field_len, f->target, f->target_len); | |
132 | if (r < 0) | |
133 | return r; | |
134 | else if (r > 0) | |
135 | break; | |
136 | } | |
137 | ||
138 | return 0; | |
139 | } | |
140 | ||
cc25a67e LK |
141 | static int field_set_test(Set *fields, const char *name, size_t n) { |
142 | char *s = NULL; | |
143 | ||
144 | if (!fields) | |
145 | return 1; | |
146 | ||
147 | s = strndupa(name, n); | |
148 | if (!s) | |
149 | return log_oom(); | |
150 | ||
151 | return set_get(fields, s) ? 1 : 0; | |
152 | } | |
153 | ||
08ace05b LP |
154 | static bool shall_print(const char *p, size_t l, OutputFlags flags) { |
155 | assert(p); | |
156 | ||
157 | if (flags & OUTPUT_SHOW_ALL) | |
55d7bfc1 LP |
158 | return true; |
159 | ||
a6f0104a | 160 | if (l >= PRINT_CHAR_THRESHOLD) |
55d7bfc1 LP |
161 | return false; |
162 | ||
31f7bf19 | 163 | if (!utf8_is_printable(p, l)) |
55d7bfc1 LP |
164 | return false; |
165 | ||
166 | return true; | |
167 | } | |
168 | ||
00f117a5 | 169 | static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, OutputFlags flags, int priority, const char* message, size_t message_len) { |
31f7bf19 ZJS |
170 | const char *color_on = "", *color_off = ""; |
171 | const char *pos, *end; | |
94e0bd7d | 172 | bool ellipsized = false; |
a6f0104a | 173 | int line = 0; |
31f7bf19 ZJS |
174 | |
175 | if (flags & OUTPUT_COLOR) { | |
176 | if (priority <= LOG_ERR) { | |
1fc464f6 LP |
177 | color_on = ANSI_HIGHLIGHT_RED; |
178 | color_off = ANSI_NORMAL; | |
31f7bf19 | 179 | } else if (priority <= LOG_NOTICE) { |
1fc464f6 LP |
180 | color_on = ANSI_HIGHLIGHT; |
181 | color_off = ANSI_NORMAL; | |
31f7bf19 ZJS |
182 | } |
183 | } | |
184 | ||
47d80904 UU |
185 | /* A special case: make sure that we print a newline when |
186 | the message is empty. */ | |
187 | if (message_len == 0) | |
188 | fputs("\n", f); | |
189 | ||
a6f0104a ZJS |
190 | for (pos = message; |
191 | pos < message + message_len; | |
192 | pos = end + 1, line++) { | |
193 | bool continuation = line > 0; | |
194 | bool tail_line; | |
31f7bf19 ZJS |
195 | int len; |
196 | for (end = pos; end < message + message_len && *end != '\n'; end++) | |
197 | ; | |
198 | len = end - pos; | |
199 | assert(len >= 0); | |
200 | ||
2526d626 | 201 | /* We need to figure out when we are showing not-last line, *and* |
a6f0104a ZJS |
202 | * will skip subsequent lines. In that case, we will put the dots |
203 | * at the end of the line, instead of putting dots in the middle | |
204 | * or not at all. | |
205 | */ | |
206 | tail_line = | |
207 | line + 1 == PRINT_LINE_THRESHOLD || | |
2526d626 | 208 | end + 1 >= message + PRINT_CHAR_THRESHOLD; |
a6f0104a ZJS |
209 | |
210 | if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) || | |
211 | (prefix + len + 1 < n_columns && !tail_line)) { | |
31f7bf19 ZJS |
212 | fprintf(f, "%*s%s%.*s%s\n", |
213 | continuation * prefix, "", | |
214 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
215 | continue; |
216 | } | |
31f7bf19 | 217 | |
a6f0104a ZJS |
218 | /* Beyond this point, ellipsization will happen. */ |
219 | ellipsized = true; | |
31f7bf19 | 220 | |
a6f0104a ZJS |
221 | if (prefix < n_columns && n_columns - prefix >= 3) { |
222 | if (n_columns - prefix > (unsigned) len + 3) | |
223 | fprintf(f, "%*s%s%.*s...%s\n", | |
b4b02cbe ZJS |
224 | continuation * prefix, "", |
225 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
226 | else { |
227 | _cleanup_free_ char *e; | |
228 | ||
229 | e = ellipsize_mem(pos, len, n_columns - prefix, | |
230 | tail_line ? 100 : 90); | |
231 | if (!e) | |
232 | fprintf(f, "%*s%s%.*s%s\n", | |
233 | continuation * prefix, "", | |
234 | color_on, len, pos, color_off); | |
235 | else | |
236 | fprintf(f, "%*s%s%s%s\n", | |
237 | continuation * prefix, "", | |
238 | color_on, e, color_off); | |
239 | } | |
240 | } else | |
31f7bf19 ZJS |
241 | fputs("...\n", f); |
242 | ||
a6f0104a ZJS |
243 | if (tail_line) |
244 | break; | |
31f7bf19 | 245 | } |
94e0bd7d ZJS |
246 | |
247 | return ellipsized; | |
31f7bf19 ZJS |
248 | } |
249 | ||
29a753df LP |
250 | static int output_timestamp_monotonic(FILE *f, sd_journal *j, const char *monotonic) { |
251 | sd_id128_t boot_id; | |
252 | uint64_t t; | |
253 | int r; | |
254 | ||
255 | assert(f); | |
256 | assert(j); | |
257 | ||
258 | r = -ENXIO; | |
259 | if (monotonic) | |
260 | r = safe_atou64(monotonic, &t); | |
261 | if (r < 0) | |
262 | r = sd_journal_get_monotonic_usec(j, &t, &boot_id); | |
263 | if (r < 0) | |
264 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
265 | ||
70887c5f | 266 | fprintf(f, "[%5"PRI_USEC".%06"PRI_USEC"]", t / USEC_PER_SEC, t % USEC_PER_SEC); |
29a753df LP |
267 | return 1 + 5 + 1 + 6 + 1; |
268 | } | |
269 | ||
270 | static int output_timestamp_realtime(FILE *f, sd_journal *j, OutputMode mode, OutputFlags flags, const char *realtime) { | |
271 | char buf[MAX(FORMAT_TIMESTAMP_MAX, 64)]; | |
272 | struct tm *(*gettime_r)(const time_t *, struct tm *); | |
273 | struct tm tm; | |
274 | uint64_t x; | |
275 | time_t t; | |
276 | int r; | |
277 | ||
278 | assert(f); | |
279 | assert(j); | |
280 | ||
281 | r = -ENXIO; | |
282 | if (realtime) | |
283 | r = safe_atou64(realtime, &x); | |
284 | if (r < 0) | |
285 | r = sd_journal_get_realtime_usec(j, &x); | |
286 | if (r < 0) | |
287 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
288 | ||
1bb4b028 LP |
289 | if (x > USEC_TIMESTAMP_FORMATTABLE_MAX) { |
290 | log_error("Timestamp cannot be printed"); | |
291 | return -EINVAL; | |
292 | } | |
293 | ||
29a753df LP |
294 | if (mode == OUTPUT_SHORT_FULL) { |
295 | const char *k; | |
296 | ||
297 | if (flags & OUTPUT_UTC) | |
298 | k = format_timestamp_utc(buf, sizeof(buf), x); | |
299 | else | |
300 | k = format_timestamp(buf, sizeof(buf), x); | |
301 | if (!k) { | |
302 | log_error("Failed to format timestamp."); | |
303 | return -EINVAL; | |
304 | } | |
305 | ||
306 | } else { | |
7e563bfc IW |
307 | char usec[7]; |
308 | ||
29a753df LP |
309 | gettime_r = (flags & OUTPUT_UTC) ? gmtime_r : localtime_r; |
310 | t = (time_t) (x / USEC_PER_SEC); | |
311 | ||
312 | switch (mode) { | |
313 | ||
314 | case OUTPUT_SHORT_UNIX: | |
70887c5f | 315 | xsprintf(buf, "%10"PRI_TIME".%06"PRIu64, t, x % USEC_PER_SEC); |
29a753df LP |
316 | break; |
317 | ||
318 | case OUTPUT_SHORT_ISO: | |
319 | if (strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", gettime_r(&t, &tm)) <= 0) { | |
7e563bfc IW |
320 | log_error("Failed to format ISO time"); |
321 | return -EINVAL; | |
322 | } | |
323 | break; | |
324 | ||
325 | case OUTPUT_SHORT_ISO_PRECISE: | |
326 | /* No usec in strftime, so we leave space and copy over */ | |
327 | if (strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S.xxxxxx%z", gettime_r(&t, &tm)) <= 0) { | |
328 | log_error("Failed to format ISO-precise time"); | |
29a753df LP |
329 | return -EINVAL; |
330 | } | |
7e563bfc IW |
331 | xsprintf(usec, "%06"PRI_USEC, x % USEC_PER_SEC); |
332 | memcpy(buf + 20, usec, 6); | |
29a753df LP |
333 | break; |
334 | ||
335 | case OUTPUT_SHORT: | |
336 | case OUTPUT_SHORT_PRECISE: | |
337 | ||
338 | if (strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)) <= 0) { | |
339 | log_error("Failed to format syslog time"); | |
340 | return -EINVAL; | |
341 | } | |
342 | ||
343 | if (mode == OUTPUT_SHORT_PRECISE) { | |
344 | size_t k; | |
345 | ||
346 | assert(sizeof(buf) > strlen(buf)); | |
347 | k = sizeof(buf) - strlen(buf); | |
348 | ||
70887c5f | 349 | r = snprintf(buf + strlen(buf), k, ".%06"PRIu64, x % USEC_PER_SEC); |
29a753df LP |
350 | if (r <= 0 || (size_t) r >= k) { /* too long? */ |
351 | log_error("Failed to format precise time"); | |
352 | return -EINVAL; | |
353 | } | |
354 | } | |
355 | break; | |
356 | ||
357 | default: | |
358 | assert_not_reached("Unknown time format"); | |
359 | } | |
360 | } | |
361 | ||
362 | fputs(buf, f); | |
363 | return (int) strlen(buf); | |
364 | } | |
365 | ||
08ace05b LP |
366 | static int output_short( |
367 | FILE *f, | |
368 | sd_journal *j, | |
369 | OutputMode mode, | |
370 | unsigned n_columns, | |
cc25a67e LK |
371 | OutputFlags flags, |
372 | Set *output_fields) { | |
08ace05b | 373 | |
86aa7ba4 | 374 | int r; |
86aa7ba4 LP |
375 | const void *data; |
376 | size_t length; | |
377 | size_t n = 0; | |
08ace05b | 378 | _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; |
49826187 LP |
379 | 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; |
380 | int p = LOG_INFO; | |
94e0bd7d | 381 | bool ellipsized = false; |
ed054520 VC |
382 | const ParseFieldVec fields[] = { |
383 | PARSE_FIELD_VEC_ENTRY("_PID=", &pid, &pid_len), | |
384 | PARSE_FIELD_VEC_ENTRY("_COMM=", &comm, &comm_len), | |
385 | PARSE_FIELD_VEC_ENTRY("MESSAGE=", &message, &message_len), | |
386 | PARSE_FIELD_VEC_ENTRY("PRIORITY=", &priority, &priority_len), | |
387 | PARSE_FIELD_VEC_ENTRY("_HOSTNAME=", &hostname, &hostname_len), | |
388 | PARSE_FIELD_VEC_ENTRY("SYSLOG_PID=", &fake_pid, &fake_pid_len), | |
389 | PARSE_FIELD_VEC_ENTRY("SYSLOG_IDENTIFIER=", &identifier, &identifier_len), | |
390 | PARSE_FIELD_VEC_ENTRY("_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len), | |
391 | PARSE_FIELD_VEC_ENTRY("_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len), | |
392 | }; | |
86aa7ba4 | 393 | |
08ace05b | 394 | assert(f); |
86aa7ba4 LP |
395 | assert(j); |
396 | ||
a6f0104a | 397 | /* Set the threshold to one bigger than the actual print |
69ab8088 | 398 | * threshold, so that if the line is actually longer than what |
a6f0104a ZJS |
399 | * we're willing to print, ellipsization will occur. This way |
400 | * we won't output a misleading line without any indication of | |
401 | * truncation. | |
402 | */ | |
403 | sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1); | |
93b73b06 | 404 | |
a72b6353 | 405 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
55d7bfc1 | 406 | |
ed054520 | 407 | r = parse_fieldv(data, length, fields, ELEMENTSOF(fields)); |
55d7bfc1 | 408 | if (r < 0) |
08ace05b | 409 | return r; |
55d7bfc1 | 410 | } |
d00f1d57 LP |
411 | if (r == -EBADMSG) { |
412 | log_debug_errno(r, "Skipping message we can't read: %m"); | |
413 | return 0; | |
414 | } | |
a72b6353 | 415 | if (r < 0) |
b56d608e | 416 | return log_error_errno(r, "Failed to get journal fields: %m"); |
a72b6353 | 417 | |
07d21025 LP |
418 | if (!message) { |
419 | log_debug("Skipping message without MESSAGE= field."); | |
08ace05b | 420 | return 0; |
07d21025 | 421 | } |
55d7bfc1 | 422 | |
e8bc0ea2 LP |
423 | if (!(flags & OUTPUT_SHOW_ALL)) |
424 | strip_tab_ansi(&message, &message_len); | |
425 | ||
49826187 LP |
426 | if (priority_len == 1 && *priority >= '0' && *priority <= '7') |
427 | p = *priority - '0'; | |
428 | ||
29a753df LP |
429 | if (mode == OUTPUT_SHORT_MONOTONIC) |
430 | r = output_timestamp_monotonic(f, j, monotonic); | |
431 | else | |
432 | r = output_timestamp_realtime(f, j, mode, flags, realtime); | |
433 | if (r < 0) | |
434 | return r; | |
435 | n += r; | |
86aa7ba4 | 436 | |
29a753df | 437 | if (flags & OUTPUT_NO_HOSTNAME) { |
991e274b | 438 | /* Suppress display of the hostname if this is requested. */ |
12104159 | 439 | hostname = mfree(hostname); |
991e274b LP |
440 | hostname_len = 0; |
441 | } | |
442 | ||
08ace05b LP |
443 | if (hostname && shall_print(hostname, hostname_len, flags)) { |
444 | fprintf(f, " %.*s", (int) hostname_len, hostname); | |
55d7bfc1 LP |
445 | n += hostname_len + 1; |
446 | } | |
447 | ||
08ace05b LP |
448 | if (identifier && shall_print(identifier, identifier_len, flags)) { |
449 | fprintf(f, " %.*s", (int) identifier_len, identifier); | |
4cd9a9d9 | 450 | n += identifier_len + 1; |
08ace05b LP |
451 | } else if (comm && shall_print(comm, comm_len, flags)) { |
452 | fprintf(f, " %.*s", (int) comm_len, comm); | |
55d7bfc1 | 453 | n += comm_len + 1; |
b5936820 | 454 | } else |
1248e840 | 455 | fputs(" unknown", f); |
86aa7ba4 | 456 | |
08ace05b LP |
457 | if (pid && shall_print(pid, pid_len, flags)) { |
458 | fprintf(f, "[%.*s]", (int) pid_len, pid); | |
55d7bfc1 | 459 | n += pid_len + 2; |
08ace05b LP |
460 | } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { |
461 | fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); | |
6c1e6b98 | 462 | n += fake_pid_len + 2; |
86aa7ba4 LP |
463 | } |
464 | ||
31f7bf19 | 465 | if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { |
e6acda19 | 466 | char bytes[FORMAT_BYTES_MAX]; |
08ace05b | 467 | fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); |
31f7bf19 ZJS |
468 | } else { |
469 | fputs(": ", f); | |
94e0bd7d ZJS |
470 | ellipsized |= |
471 | print_multiline(f, n + 2, n_columns, flags, p, message, message_len); | |
31f7bf19 | 472 | } |
55d7bfc1 | 473 | |
d4205751 LP |
474 | if (flags & OUTPUT_CATALOG) |
475 | print_catalog(f, j); | |
476 | ||
94e0bd7d | 477 | return ellipsized; |
86aa7ba4 LP |
478 | } |
479 | ||
08ace05b LP |
480 | static int output_verbose( |
481 | FILE *f, | |
482 | sd_journal *j, | |
483 | OutputMode mode, | |
484 | unsigned n_columns, | |
cc25a67e LK |
485 | OutputFlags flags, |
486 | Set *output_fields) { | |
08ace05b | 487 | |
86aa7ba4 LP |
488 | const void *data; |
489 | size_t length; | |
7fd1b19b | 490 | _cleanup_free_ char *cursor = NULL; |
d813d7a3 | 491 | uint64_t realtime = 0; |
f02d8367 | 492 | char ts[FORMAT_TIMESTAMP_MAX + 7]; |
8924973a | 493 | const char *timestamp; |
86aa7ba4 LP |
494 | int r; |
495 | ||
08ace05b | 496 | assert(f); |
86aa7ba4 LP |
497 | assert(j); |
498 | ||
93b73b06 LP |
499 | sd_journal_set_data_threshold(j, 0); |
500 | ||
cf40f0be ZJS |
501 | r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length); |
502 | if (r == -ENOENT) | |
503 | log_debug("Source realtime timestamp not found"); | |
b56d608e LP |
504 | else if (r < 0) |
505 | return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get source realtime timestamp: %m"); | |
506 | else { | |
cf40f0be | 507 | _cleanup_free_ char *value = NULL; |
cf40f0be | 508 | |
fbd0b64f LP |
509 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", |
510 | STRLEN("_SOURCE_REALTIME_TIMESTAMP="), &value, | |
511 | NULL); | |
cf40f0be | 512 | if (r < 0) |
e64c53fd | 513 | return r; |
d813d7a3 LP |
514 | assert(r > 0); |
515 | ||
516 | r = safe_atou64(value, &realtime); | |
517 | if (r < 0) | |
518 | log_debug_errno(r, "Failed to parse realtime timestamp: %m"); | |
cf40f0be ZJS |
519 | } |
520 | ||
521 | if (r < 0) { | |
522 | r = sd_journal_get_realtime_usec(j, &realtime); | |
b56d608e LP |
523 | if (r < 0) |
524 | return log_full_errno(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
525 | } |
526 | ||
527 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
528 | if (r < 0) |
529 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 530 | |
8924973a ZJS |
531 | timestamp = flags & OUTPUT_UTC ? format_timestamp_us_utc(ts, sizeof ts, realtime) |
532 | : format_timestamp_us(ts, sizeof ts, realtime); | |
08ace05b | 533 | fprintf(f, "%s [%s]\n", |
8924973a | 534 | timestamp ?: "(no timestamp)", |
08ace05b | 535 | cursor); |
86aa7ba4 | 536 | |
a72b6353 | 537 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
31f7bf19 ZJS |
538 | const char *c; |
539 | int fieldlen; | |
7ac4fa7e ZJS |
540 | const char *on = "", *off = ""; |
541 | ||
31f7bf19 ZJS |
542 | c = memchr(data, '=', length); |
543 | if (!c) { | |
544 | log_error("Invalid field."); | |
545 | return -EINVAL; | |
546 | } | |
547 | fieldlen = c - (const char*) data; | |
86aa7ba4 | 548 | |
cc25a67e LK |
549 | r = field_set_test(output_fields, data, fieldlen); |
550 | if (r < 0) | |
551 | return r; | |
552 | if (!r) | |
553 | continue; | |
554 | ||
7ac4fa7e | 555 | if (flags & OUTPUT_COLOR && startswith(data, "MESSAGE=")) { |
1fc464f6 LP |
556 | on = ANSI_HIGHLIGHT; |
557 | off = ANSI_NORMAL; | |
7ac4fa7e ZJS |
558 | } |
559 | ||
8980058a | 560 | if ((flags & OUTPUT_SHOW_ALL) || |
a6f0104a ZJS |
561 | (((length < PRINT_CHAR_THRESHOLD) || flags & OUTPUT_FULL_WIDTH) |
562 | && utf8_is_printable(data, length))) { | |
7ac4fa7e | 563 | fprintf(f, " %s%.*s=", on, fieldlen, (const char*)data); |
31f7bf19 | 564 | print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1); |
7ac4fa7e | 565 | fputs(off, f); |
31f7bf19 ZJS |
566 | } else { |
567 | char bytes[FORMAT_BYTES_MAX]; | |
86aa7ba4 | 568 | |
7ac4fa7e ZJS |
569 | fprintf(f, " %s%.*s=[%s blob data]%s\n", |
570 | on, | |
31f7bf19 ZJS |
571 | (int) (c - (const char*) data), |
572 | (const char*) data, | |
7ac4fa7e ZJS |
573 | format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1), |
574 | off); | |
31f7bf19 | 575 | } |
86aa7ba4 LP |
576 | } |
577 | ||
a72b6353 ZJS |
578 | if (r < 0) |
579 | return r; | |
580 | ||
d4205751 LP |
581 | if (flags & OUTPUT_CATALOG) |
582 | print_catalog(f, j); | |
583 | ||
86aa7ba4 LP |
584 | return 0; |
585 | } | |
586 | ||
08ace05b LP |
587 | static int output_export( |
588 | FILE *f, | |
589 | sd_journal *j, | |
590 | OutputMode mode, | |
591 | unsigned n_columns, | |
cc25a67e LK |
592 | OutputFlags flags, |
593 | Set *output_fields) { | |
08ace05b | 594 | |
86aa7ba4 LP |
595 | sd_id128_t boot_id; |
596 | char sid[33]; | |
597 | int r; | |
598 | usec_t realtime, monotonic; | |
7fd1b19b | 599 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
600 | const void *data; |
601 | size_t length; | |
602 | ||
603 | assert(j); | |
604 | ||
93b73b06 LP |
605 | sd_journal_set_data_threshold(j, 0); |
606 | ||
86aa7ba4 | 607 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
608 | if (r < 0) |
609 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
610 | |
611 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
612 | if (r < 0) |
613 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
614 | |
615 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
616 | if (r < 0) |
617 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 618 | |
08ace05b LP |
619 | fprintf(f, |
620 | "__CURSOR=%s\n" | |
de0671ee ZJS |
621 | "__REALTIME_TIMESTAMP="USEC_FMT"\n" |
622 | "__MONOTONIC_TIMESTAMP="USEC_FMT"\n" | |
08ace05b LP |
623 | "_BOOT_ID=%s\n", |
624 | cursor, | |
de0671ee ZJS |
625 | realtime, |
626 | monotonic, | |
08ace05b | 627 | sd_id128_to_string(boot_id, sid)); |
86aa7ba4 | 628 | |
a72b6353 | 629 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
cc25a67e | 630 | const char *c; |
86aa7ba4 | 631 | |
112301ae LP |
632 | /* We already printed the boot id, from the data in |
633 | * the header, hence let's suppress it here */ | |
634 | if (length >= 9 && | |
2a0e0692 | 635 | startswith(data, "_BOOT_ID=")) |
112301ae LP |
636 | continue; |
637 | ||
cc25a67e LK |
638 | c = memchr(data, '=', length); |
639 | if (!c) { | |
640 | log_error("Invalid field."); | |
641 | return -EINVAL; | |
642 | } | |
643 | ||
644 | r = field_set_test(output_fields, data, c - (const char *) data); | |
645 | if (r < 0) | |
646 | return r; | |
647 | if (!r) | |
648 | continue; | |
649 | ||
0ade5ffe ZJS |
650 | if (utf8_is_printable_newline(data, length, false)) |
651 | fwrite(data, length, 1, f); | |
652 | else { | |
86aa7ba4 LP |
653 | uint64_t le64; |
654 | ||
08ace05b LP |
655 | fwrite(data, c - (const char*) data, 1, f); |
656 | fputc('\n', f); | |
86aa7ba4 | 657 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
658 | fwrite(&le64, sizeof(le64), 1, f); |
659 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
0ade5ffe | 660 | } |
86aa7ba4 | 661 | |
08ace05b | 662 | fputc('\n', f); |
86aa7ba4 LP |
663 | } |
664 | ||
a72b6353 ZJS |
665 | if (r < 0) |
666 | return r; | |
667 | ||
08ace05b | 668 | fputc('\n', f); |
86aa7ba4 LP |
669 | |
670 | return 0; | |
671 | } | |
672 | ||
240a5fe8 | 673 | void json_escape( |
08ace05b LP |
674 | FILE *f, |
675 | const char* p, | |
676 | size_t l, | |
677 | OutputFlags flags) { | |
678 | ||
679 | assert(f); | |
680 | assert(p); | |
681 | ||
93b73b06 | 682 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
683 | fputs("null", f); |
684 | ||
8980058a | 685 | else if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(p, l)) { |
86aa7ba4 LP |
686 | bool not_first = false; |
687 | ||
08ace05b | 688 | fputs("[ ", f); |
86aa7ba4 LP |
689 | |
690 | while (l > 0) { | |
691 | if (not_first) | |
08ace05b | 692 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
693 | else { |
694 | not_first = true; | |
08ace05b | 695 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
696 | } |
697 | ||
698 | p++; | |
699 | l--; | |
700 | } | |
701 | ||
08ace05b | 702 | fputs(" ]", f); |
86aa7ba4 | 703 | } else { |
08ace05b | 704 | fputc('\"', f); |
86aa7ba4 LP |
705 | |
706 | while (l > 0) { | |
4c701096 | 707 | if (IN_SET(*p, '"', '\\')) { |
08ace05b LP |
708 | fputc('\\', f); |
709 | fputc(*p, f); | |
31f7bf19 ZJS |
710 | } else if (*p == '\n') |
711 | fputs("\\n", f); | |
91a8a108 DM |
712 | else if ((uint8_t) *p < ' ') |
713 | fprintf(f, "\\u%04x", (uint8_t) *p); | |
08ace05b LP |
714 | else |
715 | fputc(*p, f); | |
86aa7ba4 LP |
716 | |
717 | p++; | |
718 | l--; | |
719 | } | |
720 | ||
08ace05b | 721 | fputc('\"', f); |
86aa7ba4 LP |
722 | } |
723 | } | |
724 | ||
08ace05b LP |
725 | static int output_json( |
726 | FILE *f, | |
727 | sd_journal *j, | |
728 | OutputMode mode, | |
729 | unsigned n_columns, | |
cc25a67e LK |
730 | OutputFlags flags, |
731 | Set *output_fields) { | |
08ace05b | 732 | |
86aa7ba4 | 733 | uint64_t realtime, monotonic; |
7fd1b19b | 734 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
735 | const void *data; |
736 | size_t length; | |
737 | sd_id128_t boot_id; | |
2e729834 | 738 | char sid[33], *k; |
86aa7ba4 | 739 | int r; |
d99ae53a LP |
740 | Hashmap *h = NULL; |
741 | bool done, separator; | |
86aa7ba4 LP |
742 | |
743 | assert(j); | |
744 | ||
93b73b06 LP |
745 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
746 | ||
86aa7ba4 | 747 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
748 | if (r < 0) |
749 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
750 | |
751 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
752 | if (r < 0) |
753 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
754 | |
755 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
756 | if (r < 0) |
757 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 758 | |
a6e87e90 | 759 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
760 | fprintf(f, |
761 | "{\n" | |
762 | "\t\"__CURSOR\" : \"%s\",\n" | |
de0671ee ZJS |
763 | "\t\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\",\n" |
764 | "\t\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\",\n" | |
08ace05b LP |
765 | "\t\"_BOOT_ID\" : \"%s\"", |
766 | cursor, | |
de0671ee ZJS |
767 | realtime, |
768 | monotonic, | |
08ace05b | 769 | sd_id128_to_string(boot_id, sid)); |
48383c25 LP |
770 | else { |
771 | if (mode == OUTPUT_JSON_SSE) | |
772 | fputs("data: ", f); | |
773 | ||
08ace05b LP |
774 | fprintf(f, |
775 | "{ \"__CURSOR\" : \"%s\", " | |
de0671ee ZJS |
776 | "\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\", " |
777 | "\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\", " | |
08ace05b LP |
778 | "\"_BOOT_ID\" : \"%s\"", |
779 | cursor, | |
de0671ee ZJS |
780 | realtime, |
781 | monotonic, | |
08ace05b | 782 | sd_id128_to_string(boot_id, sid)); |
48383c25 | 783 | } |
86aa7ba4 | 784 | |
d5099efc | 785 | h = hashmap_new(&string_hash_ops); |
d99ae53a | 786 | if (!h) |
b56d608e | 787 | return log_oom(); |
d99ae53a LP |
788 | |
789 | /* First round, iterate through the entry and count how often each field appears */ | |
a72b6353 | 790 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
d99ae53a LP |
791 | const char *eq; |
792 | char *n; | |
793 | unsigned u; | |
86aa7ba4 | 794 | |
112301ae LP |
795 | if (length >= 9 && |
796 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
797 | continue; | |
798 | ||
d99ae53a LP |
799 | eq = memchr(data, '=', length); |
800 | if (!eq) | |
801 | continue; | |
86aa7ba4 | 802 | |
d99ae53a LP |
803 | n = strndup(data, eq - (const char*) data); |
804 | if (!n) { | |
b56d608e | 805 | r = log_oom(); |
d99ae53a LP |
806 | goto finish; |
807 | } | |
a6e87e90 | 808 | |
d99ae53a LP |
809 | u = PTR_TO_UINT(hashmap_get(h, n)); |
810 | if (u == 0) { | |
811 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
812 | if (r < 0) { | |
813 | free(n); | |
b56d608e | 814 | log_oom(); |
d99ae53a LP |
815 | goto finish; |
816 | } | |
817 | } else { | |
818 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
819 | free(n); | |
b56d608e LP |
820 | if (r < 0) { |
821 | log_oom(); | |
d99ae53a | 822 | goto finish; |
b56d608e | 823 | } |
d99ae53a | 824 | } |
86aa7ba4 LP |
825 | } |
826 | ||
a72b6353 ZJS |
827 | if (r < 0) |
828 | return r; | |
829 | ||
d99ae53a LP |
830 | separator = true; |
831 | do { | |
832 | done = true; | |
833 | ||
834 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
835 | const char *eq; | |
836 | char *kk, *n; | |
837 | size_t m; | |
838 | unsigned u; | |
839 | ||
840 | /* We already printed the boot id, from the data in | |
841 | * the header, hence let's suppress it here */ | |
842 | if (length >= 9 && | |
843 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
844 | continue; | |
845 | ||
846 | eq = memchr(data, '=', length); | |
847 | if (!eq) | |
848 | continue; | |
849 | ||
d99ae53a LP |
850 | m = eq - (const char*) data; |
851 | ||
852 | n = strndup(data, m); | |
853 | if (!n) { | |
b56d608e | 854 | r = log_oom(); |
d99ae53a LP |
855 | goto finish; |
856 | } | |
857 | ||
cc25a67e LK |
858 | if (output_fields && !set_get(output_fields, n)) { |
859 | free(n); | |
860 | continue; | |
861 | } | |
862 | ||
863 | if (separator) { | |
864 | if (mode == OUTPUT_JSON_PRETTY) | |
865 | fputs(",\n\t", f); | |
866 | else | |
867 | fputs(", ", f); | |
868 | } | |
869 | ||
d99ae53a LP |
870 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); |
871 | if (u == 0) { | |
872 | /* We already printed this, let's jump to the next */ | |
873 | free(n); | |
874 | separator = false; | |
875 | ||
876 | continue; | |
877 | } else if (u == 1) { | |
878 | /* Field only appears once, output it directly */ | |
879 | ||
880 | json_escape(f, data, m, flags); | |
881 | fputs(" : ", f); | |
882 | ||
883 | json_escape(f, eq + 1, length - m - 1, flags); | |
884 | ||
885 | hashmap_remove(h, n); | |
886 | free(kk); | |
887 | free(n); | |
888 | ||
889 | separator = true; | |
890 | ||
891 | continue; | |
892 | ||
893 | } else { | |
894 | /* Field appears multiple times, output it as array */ | |
895 | json_escape(f, data, m, flags); | |
896 | fputs(" : [ ", f); | |
897 | json_escape(f, eq + 1, length - m - 1, flags); | |
898 | ||
899 | /* Iterate through the end of the list */ | |
900 | ||
901 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
902 | if (length < m + 1) | |
903 | continue; | |
904 | ||
905 | if (memcmp(data, n, m) != 0) | |
906 | continue; | |
907 | ||
908 | if (((const char*) data)[m] != '=') | |
909 | continue; | |
910 | ||
911 | fputs(", ", f); | |
912 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
913 | } | |
914 | ||
915 | fputs(" ]", f); | |
916 | ||
917 | hashmap_remove(h, n); | |
918 | free(kk); | |
919 | free(n); | |
920 | ||
921 | /* Iterate data fields form the beginning */ | |
922 | done = false; | |
923 | separator = true; | |
924 | ||
925 | break; | |
926 | } | |
927 | } | |
928 | ||
929 | } while (!done); | |
930 | ||
a6e87e90 | 931 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 932 | fputs("\n}\n", f); |
48383c25 LP |
933 | else if (mode == OUTPUT_JSON_SSE) |
934 | fputs("}\n\n", f); | |
a6e87e90 | 935 | else |
08ace05b | 936 | fputs(" }\n", f); |
86aa7ba4 | 937 | |
d99ae53a LP |
938 | r = 0; |
939 | ||
940 | finish: | |
941 | while ((k = hashmap_steal_first_key(h))) | |
942 | free(k); | |
943 | ||
944 | hashmap_free(h); | |
945 | ||
946 | return r; | |
86aa7ba4 LP |
947 | } |
948 | ||
08ace05b LP |
949 | static int output_cat( |
950 | FILE *f, | |
951 | sd_journal *j, | |
952 | OutputMode mode, | |
953 | unsigned n_columns, | |
cc25a67e LK |
954 | OutputFlags flags, |
955 | Set *output_fields) { | |
08ace05b | 956 | |
d3f2bdbf LP |
957 | const void *data; |
958 | size_t l; | |
959 | int r; | |
960 | ||
961 | assert(j); | |
08ace05b | 962 | assert(f); |
d3f2bdbf | 963 | |
93b73b06 LP |
964 | sd_journal_set_data_threshold(j, 0); |
965 | ||
d3f2bdbf LP |
966 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
967 | if (r < 0) { | |
c198300f LP |
968 | /* An entry without MESSAGE=? */ |
969 | if (r == -ENOENT) | |
970 | return 0; | |
971 | ||
8d3d7072 | 972 | return log_error_errno(r, "Failed to get data: %m"); |
d3f2bdbf LP |
973 | } |
974 | ||
975 | assert(l >= 8); | |
976 | ||
08ace05b LP |
977 | fwrite((const char*) data + 8, 1, l - 8, f); |
978 | fputc('\n', f); | |
d3f2bdbf LP |
979 | |
980 | return 0; | |
981 | } | |
982 | ||
08ace05b LP |
983 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
984 | FILE *f, | |
985 | sd_journal*j, | |
986 | OutputMode mode, | |
987 | unsigned n_columns, | |
cc25a67e LK |
988 | OutputFlags flags, |
989 | Set *output_fields) = { | |
08ace05b | 990 | |
a6e87e90 | 991 | [OUTPUT_SHORT] = output_short, |
44bc6e1f | 992 | [OUTPUT_SHORT_ISO] = output_short, |
7e563bfc | 993 | [OUTPUT_SHORT_ISO_PRECISE] = output_short, |
f02d8367 ZJS |
994 | [OUTPUT_SHORT_PRECISE] = output_short, |
995 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
bb321ed9 | 996 | [OUTPUT_SHORT_UNIX] = output_short, |
29a753df | 997 | [OUTPUT_SHORT_FULL] = output_short, |
86aa7ba4 LP |
998 | [OUTPUT_VERBOSE] = output_verbose, |
999 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 1000 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 1001 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 1002 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 1003 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
1004 | }; |
1005 | ||
08ace05b LP |
1006 | int output_journal( |
1007 | FILE *f, | |
1008 | sd_journal *j, | |
1009 | OutputMode mode, | |
1010 | unsigned n_columns, | |
94e0bd7d | 1011 | OutputFlags flags, |
cc25a67e | 1012 | char **output_fields, |
94e0bd7d | 1013 | bool *ellipsized) { |
08ace05b | 1014 | |
e268b81e | 1015 | int ret; |
cc25a67e | 1016 | _cleanup_set_free_free_ Set *fields = NULL; |
df50185b | 1017 | assert(mode >= 0); |
86aa7ba4 LP |
1018 | assert(mode < _OUTPUT_MODE_MAX); |
1019 | ||
34a35ece LP |
1020 | if (n_columns <= 0) |
1021 | n_columns = columns(); | |
1022 | ||
cc25a67e LK |
1023 | if (output_fields) { |
1024 | fields = set_new(&string_hash_ops); | |
1025 | if (!fields) | |
1026 | return log_oom(); | |
1027 | ||
1028 | ret = set_put_strdupv(fields, output_fields); | |
1029 | if (ret < 0) | |
1030 | return ret; | |
1031 | } | |
1032 | ||
1033 | ret = output_funcs[mode](f, j, mode, n_columns, flags, fields); | |
94e0bd7d ZJS |
1034 | |
1035 | if (ellipsized && ret > 0) | |
1036 | *ellipsized = true; | |
1037 | ||
e268b81e | 1038 | return ret; |
86aa7ba4 LP |
1039 | } |
1040 | ||
ea6c2dd1 LP |
1041 | static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) { |
1042 | assert(f); | |
1043 | assert(flags); | |
1044 | ||
1045 | if (!(*flags & OUTPUT_BEGIN_NEWLINE)) | |
1046 | return 0; | |
1047 | ||
1048 | /* Print a beginning new line if that's request, but only once | |
1049 | * on the first line we print. */ | |
1050 | ||
1051 | fputc('\n', f); | |
1052 | *flags &= ~OUTPUT_BEGIN_NEWLINE; | |
1053 | return 0; | |
1054 | } | |
1055 | ||
1a6c43e9 MT |
1056 | static int show_journal(FILE *f, |
1057 | sd_journal *j, | |
1058 | OutputMode mode, | |
1059 | unsigned n_columns, | |
1060 | usec_t not_before, | |
1061 | unsigned how_many, | |
94e0bd7d ZJS |
1062 | OutputFlags flags, |
1063 | bool *ellipsized) { | |
86aa7ba4 | 1064 | |
86aa7ba4 | 1065 | int r; |
df50185b LP |
1066 | unsigned line = 0; |
1067 | bool need_seek = false; | |
085d7120 | 1068 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 1069 | |
1a6c43e9 | 1070 | assert(j); |
df50185b LP |
1071 | assert(mode >= 0); |
1072 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
1073 | |
1074 | /* Seek to end */ | |
86aa7ba4 LP |
1075 | r = sd_journal_seek_tail(j); |
1076 | if (r < 0) | |
b56d608e | 1077 | return log_error_errno(r, "Failed to seek to tail: %m"); |
86aa7ba4 | 1078 | |
df50185b LP |
1079 | r = sd_journal_previous_skip(j, how_many); |
1080 | if (r < 0) | |
b56d608e | 1081 | return log_error_errno(r, "Failed to skip previous: %m"); |
86aa7ba4 | 1082 | |
df50185b LP |
1083 | for (;;) { |
1084 | for (;;) { | |
1085 | usec_t usec; | |
1086 | ||
1087 | if (need_seek) { | |
1088 | r = sd_journal_next(j); | |
1089 | if (r < 0) | |
b56d608e | 1090 | return log_error_errno(r, "Failed to iterate through journal: %m"); |
df50185b LP |
1091 | } |
1092 | ||
1093 | if (r == 0) | |
1094 | break; | |
86aa7ba4 | 1095 | |
df50185b LP |
1096 | need_seek = true; |
1097 | ||
1098 | if (not_before > 0) { | |
1099 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
1100 | ||
1101 | /* -ESTALE is returned if the | |
1102 | timestamp is not from this boot */ | |
1103 | if (r == -ESTALE) | |
1104 | continue; | |
1105 | else if (r < 0) | |
b56d608e | 1106 | return log_error_errno(r, "Failed to get journal time: %m"); |
df50185b LP |
1107 | |
1108 | if (usec < not_before) | |
1109 | continue; | |
1110 | } | |
1111 | ||
313cefa1 | 1112 | line++; |
ea6c2dd1 | 1113 | maybe_print_begin_newline(f, &flags); |
df50185b | 1114 | |
cc25a67e | 1115 | r = output_journal(f, j, mode, n_columns, flags, NULL, ellipsized); |
df50185b | 1116 | if (r < 0) |
b56d608e | 1117 | return r; |
df50185b LP |
1118 | } |
1119 | ||
08984293 LP |
1120 | if (warn_cutoff && line < how_many && not_before > 0) { |
1121 | sd_id128_t boot_id; | |
a7f7d1bd | 1122 | usec_t cutoff = 0; |
08984293 LP |
1123 | |
1124 | /* Check whether the cutoff line is too early */ | |
1125 | ||
1126 | r = sd_id128_get_boot(&boot_id); | |
1127 | if (r < 0) | |
b56d608e | 1128 | return log_error_errno(r, "Failed to get boot id: %m"); |
08984293 LP |
1129 | |
1130 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
1131 | if (r < 0) | |
b56d608e | 1132 | return log_error_errno(r, "Failed to get journal cutoff time: %m"); |
08984293 | 1133 | |
ea6c2dd1 LP |
1134 | if (r > 0 && not_before < cutoff) { |
1135 | maybe_print_begin_newline(f, &flags); | |
08ace05b | 1136 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
ea6c2dd1 | 1137 | } |
08984293 LP |
1138 | |
1139 | warn_cutoff = false; | |
1140 | } | |
1141 | ||
085d7120 | 1142 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
1143 | break; |
1144 | ||
3a43da28 | 1145 | r = sd_journal_wait(j, USEC_INFINITY); |
df50185b | 1146 | if (r < 0) |
b56d608e | 1147 | return log_error_errno(r, "Failed to wait for journal: %m"); |
df50185b | 1148 | |
86aa7ba4 LP |
1149 | } |
1150 | ||
b56d608e | 1151 | return 0; |
1a6c43e9 MT |
1152 | } |
1153 | ||
886a64fe | 1154 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
2b45d881 | 1155 | const char *m1, *m2, *m3, *m4; |
1a6c43e9 MT |
1156 | int r; |
1157 | ||
886a64fe | 1158 | assert(j); |
1a6c43e9 MT |
1159 | assert(unit); |
1160 | ||
63c372cb LP |
1161 | m1 = strjoina("_SYSTEMD_UNIT=", unit); |
1162 | m2 = strjoina("COREDUMP_UNIT=", unit); | |
1163 | m3 = strjoina("UNIT=", unit); | |
1164 | m4 = strjoina("OBJECT_SYSTEMD_UNIT=", unit); | |
1a6c43e9 | 1165 | |
886a64fe ZJS |
1166 | (void)( |
1167 | /* Look for messages from the service itself */ | |
1168 | (r = sd_journal_add_match(j, m1, 0)) || | |
1169 | ||
1170 | /* Look for coredumps of the service */ | |
1171 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df ZJS |
1172 | (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || |
1173 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
886a64fe ZJS |
1174 | (r = sd_journal_add_match(j, m2, 0)) || |
1175 | ||
1176 | /* Look for messages from PID 1 about this service */ | |
1177 | (r = sd_journal_add_disjunction(j)) || | |
1178 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
2d0b2e87 ZJS |
1179 | (r = sd_journal_add_match(j, m3, 0)) || |
1180 | ||
1181 | /* Look for messages from authorized daemons about this service */ | |
1182 | (r = sd_journal_add_disjunction(j)) || | |
1183 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1184 | (r = sd_journal_add_match(j, m4, 0)) | |
886a64fe | 1185 | ); |
2d0b2e87 | 1186 | |
69ae3ee0 | 1187 | if (r == 0 && endswith(unit, ".slice")) { |
2b45d881 LP |
1188 | const char *m5; |
1189 | ||
1190 | m5 = strjoina("_SYSTEMD_SLICE=", unit); | |
69ae3ee0 ZJS |
1191 | |
1192 | /* Show all messages belonging to a slice */ | |
1193 | (void)( | |
1194 | (r = sd_journal_add_disjunction(j)) || | |
1195 | (r = sd_journal_add_match(j, m5, 0)) | |
1196 | ); | |
1197 | } | |
1198 | ||
886a64fe ZJS |
1199 | return r; |
1200 | } | |
1a6c43e9 | 1201 | |
886a64fe ZJS |
1202 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
1203 | int r; | |
2d0b2e87 ZJS |
1204 | char *m1, *m2, *m3, *m4; |
1205 | char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
1a6c43e9 | 1206 | |
886a64fe ZJS |
1207 | assert(j); |
1208 | assert(unit); | |
1a6c43e9 | 1209 | |
63c372cb LP |
1210 | m1 = strjoina("_SYSTEMD_USER_UNIT=", unit); |
1211 | m2 = strjoina("USER_UNIT=", unit); | |
1212 | m3 = strjoina("COREDUMP_USER_UNIT=", unit); | |
1213 | m4 = strjoina("OBJECT_SYSTEMD_USER_UNIT=", unit); | |
de0671ee | 1214 | sprintf(muid, "_UID="UID_FMT, uid); |
1a6c43e9 | 1215 | |
886a64fe ZJS |
1216 | (void) ( |
1217 | /* Look for messages from the user service itself */ | |
1218 | (r = sd_journal_add_match(j, m1, 0)) || | |
2d0b2e87 | 1219 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1220 | |
1221 | /* Look for messages from systemd about this service */ | |
1222 | (r = sd_journal_add_disjunction(j)) || | |
1223 | (r = sd_journal_add_match(j, m2, 0)) || | |
2d0b2e87 | 1224 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1225 | |
1226 | /* Look for coredumps of the service */ | |
1227 | (r = sd_journal_add_disjunction(j)) || | |
1228 | (r = sd_journal_add_match(j, m3, 0)) || | |
2d0b2e87 ZJS |
1229 | (r = sd_journal_add_match(j, muid, 0)) || |
1230 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1231 | ||
1232 | /* Look for messages from authorized daemons about this service */ | |
1233 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df | 1234 | (r = sd_journal_add_match(j, m4, 0)) || |
2d0b2e87 | 1235 | (r = sd_journal_add_match(j, muid, 0)) || |
fdcd37df | 1236 | (r = sd_journal_add_match(j, "_UID=0", 0)) |
886a64fe | 1237 | ); |
69ae3ee0 ZJS |
1238 | |
1239 | if (r == 0 && endswith(unit, ".slice")) { | |
2b45d881 LP |
1240 | const char *m5; |
1241 | ||
1242 | m5 = strjoina("_SYSTEMD_SLICE=", unit); | |
69ae3ee0 ZJS |
1243 | |
1244 | /* Show all messages belonging to a slice */ | |
1245 | (void)( | |
1246 | (r = sd_journal_add_disjunction(j)) || | |
1247 | (r = sd_journal_add_match(j, m5, 0)) || | |
1248 | (r = sd_journal_add_match(j, muid, 0)) | |
1249 | ); | |
1250 | } | |
1251 | ||
1a6c43e9 MT |
1252 | return r; |
1253 | } | |
1254 | ||
b6741478 | 1255 | static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { |
3d94f76c | 1256 | _cleanup_close_pair_ int pair[2] = { -1, -1 }; |
a4475f57 | 1257 | _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; |
b6741478 LP |
1258 | pid_t pid, child; |
1259 | siginfo_t si; | |
1260 | char buf[37]; | |
1261 | ssize_t k; | |
1262 | int r; | |
1263 | ||
1264 | assert(machine); | |
1265 | assert(boot_id); | |
1266 | ||
affcf189 | 1267 | if (!machine_name_is_valid(machine)) |
b6741478 LP |
1268 | return -EINVAL; |
1269 | ||
e04b0cdb | 1270 | r = container_get_leader(machine, &pid); |
b6741478 LP |
1271 | if (r < 0) |
1272 | return r; | |
e04b0cdb | 1273 | |
671c3419 | 1274 | r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, NULL, &rootfd); |
b6741478 LP |
1275 | if (r < 0) |
1276 | return r; | |
1277 | ||
e04b0cdb | 1278 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) |
b6741478 LP |
1279 | return -errno; |
1280 | ||
1281 | child = fork(); | |
1282 | if (child < 0) | |
1283 | return -errno; | |
1284 | ||
1285 | if (child == 0) { | |
1286 | int fd; | |
1287 | ||
03e334a1 | 1288 | pair[0] = safe_close(pair[0]); |
b6741478 | 1289 | |
671c3419 | 1290 | r = namespace_enter(pidnsfd, mntnsfd, -1, -1, rootfd); |
b6741478 LP |
1291 | if (r < 0) |
1292 | _exit(EXIT_FAILURE); | |
1293 | ||
1294 | fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1295 | if (fd < 0) | |
1296 | _exit(EXIT_FAILURE); | |
1297 | ||
a6dcc7e5 | 1298 | r = loop_read_exact(fd, buf, 36, false); |
03e334a1 | 1299 | safe_close(fd); |
6c767d1e | 1300 | if (r < 0) |
b6741478 LP |
1301 | _exit(EXIT_FAILURE); |
1302 | ||
e04b0cdb | 1303 | k = send(pair[1], buf, 36, MSG_NOSIGNAL); |
b6741478 LP |
1304 | if (k != 36) |
1305 | _exit(EXIT_FAILURE); | |
1306 | ||
1307 | _exit(EXIT_SUCCESS); | |
1308 | } | |
1309 | ||
03e334a1 | 1310 | pair[1] = safe_close(pair[1]); |
b6741478 | 1311 | |
b6741478 LP |
1312 | r = wait_for_terminate(child, &si); |
1313 | if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) | |
1314 | return r < 0 ? r : -EIO; | |
1315 | ||
fbadf045 LP |
1316 | k = recv(pair[0], buf, 36, 0); |
1317 | if (k != 36) | |
1318 | return -EIO; | |
1319 | ||
b6741478 LP |
1320 | buf[36] = 0; |
1321 | r = sd_id128_from_string(buf, boot_id); | |
1322 | if (r < 0) | |
1323 | return r; | |
1324 | ||
1325 | return 0; | |
1326 | } | |
1327 | ||
1328 | int add_match_this_boot(sd_journal *j, const char *machine) { | |
5ec76417 ZJS |
1329 | char match[9+32+1] = "_BOOT_ID="; |
1330 | sd_id128_t boot_id; | |
1331 | int r; | |
1332 | ||
1333 | assert(j); | |
1334 | ||
b6741478 LP |
1335 | if (machine) { |
1336 | r = get_boot_id_for_machine(machine, &boot_id); | |
f647962d MS |
1337 | if (r < 0) |
1338 | return log_error_errno(r, "Failed to get boot id of container %s: %m", machine); | |
b6741478 LP |
1339 | } else { |
1340 | r = sd_id128_get_boot(&boot_id); | |
f647962d MS |
1341 | if (r < 0) |
1342 | return log_error_errno(r, "Failed to get boot id: %m"); | |
5ec76417 ZJS |
1343 | } |
1344 | ||
1345 | sd_id128_to_string(boot_id, match + 9); | |
1346 | r = sd_journal_add_match(j, match, strlen(match)); | |
f647962d MS |
1347 | if (r < 0) |
1348 | return log_error_errno(r, "Failed to add match: %m"); | |
5ec76417 ZJS |
1349 | |
1350 | r = sd_journal_add_conjunction(j); | |
1351 | if (r < 0) | |
b56d608e | 1352 | return log_error_errno(r, "Failed to add conjunction: %m"); |
5ec76417 ZJS |
1353 | |
1354 | return 0; | |
1355 | } | |
1356 | ||
886a64fe | 1357 | int show_journal_by_unit( |
1a6c43e9 MT |
1358 | FILE *f, |
1359 | const char *unit, | |
1360 | OutputMode mode, | |
1361 | unsigned n_columns, | |
1362 | usec_t not_before, | |
1363 | unsigned how_many, | |
1364 | uid_t uid, | |
886a64fe | 1365 | OutputFlags flags, |
3c756001 LP |
1366 | int journal_open_flags, |
1367 | bool system_unit, | |
94e0bd7d | 1368 | bool *ellipsized) { |
1a6c43e9 | 1369 | |
4afd3348 | 1370 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
1a6c43e9 MT |
1371 | int r; |
1372 | ||
1373 | assert(mode >= 0); | |
1374 | assert(mode < _OUTPUT_MODE_MAX); | |
1375 | assert(unit); | |
1376 | ||
1a6c43e9 MT |
1377 | if (how_many <= 0) |
1378 | return 0; | |
1379 | ||
3c756001 | 1380 | r = sd_journal_open(&j, journal_open_flags); |
f9045468 | 1381 | if (r < 0) |
b56d608e | 1382 | return log_error_errno(r, "Failed to open journal: %m"); |
f9045468 | 1383 | |
b6741478 | 1384 | r = add_match_this_boot(j, NULL); |
5ec76417 ZJS |
1385 | if (r < 0) |
1386 | return r; | |
1387 | ||
3c756001 | 1388 | if (system_unit) |
886a64fe ZJS |
1389 | r = add_matches_for_unit(j, unit); |
1390 | else | |
1391 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1392 | if (r < 0) |
b56d608e | 1393 | return log_error_errno(r, "Failed to add unit matches: %m"); |
1a6c43e9 | 1394 | |
553d2243 | 1395 | if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { |
4ad16808 ZJS |
1396 | _cleanup_free_ char *filter; |
1397 | ||
1398 | filter = journal_make_match_string(j); | |
b56d608e LP |
1399 | if (!filter) |
1400 | return log_oom(); | |
1401 | ||
4ad16808 ZJS |
1402 | log_debug("Journal filter: %s", filter); |
1403 | } | |
5ec76417 | 1404 | |
94e0bd7d | 1405 | return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); |
86aa7ba4 | 1406 | } |