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Commit | Line | Data |
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7f3e6257 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
7f3e6257 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
7f3e6257 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
7f3e6257 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <sys/socket.h> | |
23 | #include <sys/un.h> | |
24 | #include <errno.h> | |
25 | #include <stddef.h> | |
0dad12c1 LP |
26 | #include <unistd.h> |
27 | #include <fcntl.h> | |
7f3e6257 | 28 | |
b070e7f3 LP |
29 | #define SD_JOURNAL_SUPPRESS_LOCATION |
30 | ||
7f3e6257 LP |
31 | #include "sd-journal.h" |
32 | #include "util.h" | |
fe652127 | 33 | #include "socket-util.h" |
7f3e6257 | 34 | |
bb99a35a LP |
35 | #define SNDBUF_SIZE (8*1024*1024) |
36 | ||
7f3e6257 LP |
37 | /* We open a single fd, and we'll share it with the current process, |
38 | * all its threads, and all its subprocesses. This means we need to | |
39 | * initialize it atomically, and need to operate on it atomically | |
40 | * never assuming we are the only user */ | |
41 | ||
42 | static int journal_fd(void) { | |
43 | int fd; | |
44 | static int fd_plus_one = 0; | |
45 | ||
46 | retry: | |
47 | if (fd_plus_one > 0) | |
48 | return fd_plus_one - 1; | |
49 | ||
50 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0); | |
51 | if (fd < 0) | |
52 | return -errno; | |
53 | ||
bb99a35a LP |
54 | fd_inc_sndbuf(fd, SNDBUF_SIZE); |
55 | ||
7f3e6257 LP |
56 | if (!__sync_bool_compare_and_swap(&fd_plus_one, 0, fd+1)) { |
57 | close_nointr_nofail(fd); | |
58 | goto retry; | |
59 | } | |
60 | ||
61 | return fd; | |
62 | } | |
63 | ||
a5344d2c | 64 | _public_ int sd_journal_print(int priority, const char *format, ...) { |
7f3e6257 LP |
65 | int r; |
66 | va_list ap; | |
67 | ||
68 | va_start(ap, format); | |
d0bbc21c | 69 | r = sd_journal_printv(priority, format, ap); |
7f3e6257 LP |
70 | va_end(ap); |
71 | ||
72 | return r; | |
73 | } | |
74 | ||
a5344d2c | 75 | _public_ int sd_journal_printv(int priority, const char *format, va_list ap) { |
18c7ed18 LP |
76 | |
77 | /* FIXME: Instead of limiting things to LINE_MAX we could do a | |
78 | C99 variable-length array on the stack here in a loop. */ | |
79 | ||
80 | char buffer[8 + LINE_MAX], p[11]; struct iovec iov[2]; | |
d0bbc21c | 81 | |
fe652127 LP |
82 | if (priority < 0 || priority > 7) |
83 | return -EINVAL; | |
84 | ||
85 | if (!format) | |
86 | return -EINVAL; | |
87 | ||
d0bbc21c LP |
88 | snprintf(p, sizeof(p), "PRIORITY=%i", priority & LOG_PRIMASK); |
89 | char_array_0(p); | |
7f3e6257 LP |
90 | |
91 | memcpy(buffer, "MESSAGE=", 8); | |
92 | vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap); | |
7f3e6257 LP |
93 | char_array_0(buffer); |
94 | ||
95 | zero(iov); | |
d0bbc21c LP |
96 | IOVEC_SET_STRING(iov[0], buffer); |
97 | IOVEC_SET_STRING(iov[1], p); | |
7f3e6257 | 98 | |
d0bbc21c | 99 | return sd_journal_sendv(iov, 2); |
7f3e6257 LP |
100 | } |
101 | ||
b070e7f3 | 102 | static int fill_iovec_sprintf(const char *format, va_list ap, int extra, struct iovec **_iov) { |
25d042e8 | 103 | int r, n = 0, i = 0, j; |
7f3e6257 | 104 | struct iovec *iov = NULL; |
b070e7f3 LP |
105 | int saved_errno; |
106 | ||
107 | assert(_iov); | |
108 | saved_errno = errno; | |
109 | ||
110 | if (extra > 0) { | |
111 | n = MAX(extra * 2, extra + 4); | |
112 | iov = malloc0(n * sizeof(struct iovec)); | |
113 | if (!iov) { | |
114 | r = -ENOMEM; | |
115 | goto fail; | |
116 | } | |
117 | ||
118 | i = extra; | |
25d042e8 | 119 | } |
7f3e6257 | 120 | |
7f3e6257 LP |
121 | while (format) { |
122 | struct iovec *c; | |
123 | char *buffer; | |
124 | ||
125 | if (i >= n) { | |
126 | n = MAX(i*2, 4); | |
127 | c = realloc(iov, n * sizeof(struct iovec)); | |
128 | if (!c) { | |
129 | r = -ENOMEM; | |
130 | goto fail; | |
131 | } | |
132 | ||
133 | iov = c; | |
134 | } | |
135 | ||
136 | if (vasprintf(&buffer, format, ap) < 0) { | |
137 | r = -ENOMEM; | |
138 | goto fail; | |
139 | } | |
140 | ||
141 | IOVEC_SET_STRING(iov[i++], buffer); | |
142 | ||
143 | format = va_arg(ap, char *); | |
144 | } | |
b070e7f3 LP |
145 | |
146 | *_iov = iov; | |
147 | ||
148 | errno = saved_errno; | |
149 | return i; | |
150 | ||
151 | fail: | |
152 | for (j = 0; j < i; j++) | |
153 | free(iov[j].iov_base); | |
154 | ||
155 | free(iov); | |
156 | ||
157 | errno = saved_errno; | |
158 | return r; | |
159 | } | |
160 | ||
161 | _public_ int sd_journal_send(const char *format, ...) { | |
162 | int r, i, j; | |
163 | va_list ap; | |
164 | struct iovec *iov = NULL; | |
165 | ||
166 | va_start(ap, format); | |
167 | i = fill_iovec_sprintf(format, ap, 0, &iov); | |
7f3e6257 LP |
168 | va_end(ap); |
169 | ||
b070e7f3 LP |
170 | if (_unlikely_(i < 0)) { |
171 | r = i; | |
172 | goto finish; | |
173 | } | |
174 | ||
7f3e6257 LP |
175 | r = sd_journal_sendv(iov, i); |
176 | ||
b070e7f3 | 177 | finish: |
7f3e6257 LP |
178 | for (j = 0; j < i; j++) |
179 | free(iov[j].iov_base); | |
180 | ||
181 | free(iov); | |
182 | ||
183 | return r; | |
184 | } | |
185 | ||
a5344d2c | 186 | _public_ int sd_journal_sendv(const struct iovec *iov, int n) { |
0dad12c1 | 187 | int fd, buffer_fd; |
7f3e6257 LP |
188 | struct iovec *w; |
189 | uint64_t *l; | |
b070e7f3 | 190 | int r, i, j = 0; |
7f3e6257 LP |
191 | struct msghdr mh; |
192 | struct sockaddr_un sa; | |
0dad12c1 | 193 | ssize_t k; |
b070e7f3 | 194 | int saved_errno; |
0dad12c1 LP |
195 | union { |
196 | struct cmsghdr cmsghdr; | |
197 | uint8_t buf[CMSG_SPACE(sizeof(int))]; | |
198 | } control; | |
199 | struct cmsghdr *cmsg; | |
9058851b LP |
200 | /* We use /dev/shm instead of /tmp here, since we want this to |
201 | * be a tmpfs, and one that is available from early boot on | |
202 | * and where unprivileged users can create files. */ | |
203 | char path[] = "/dev/shm/journal.XXXXXX"; | |
7f3e6257 | 204 | |
b070e7f3 LP |
205 | if (_unlikely_(!iov)) |
206 | return -EINVAL; | |
207 | ||
208 | if (_unlikely_(n <= 0)) | |
7f3e6257 LP |
209 | return -EINVAL; |
210 | ||
b070e7f3 LP |
211 | saved_errno = errno; |
212 | ||
7f3e6257 LP |
213 | w = alloca(sizeof(struct iovec) * n * 5); |
214 | l = alloca(sizeof(uint64_t) * n); | |
215 | ||
216 | for (i = 0; i < n; i++) { | |
217 | char *c, *nl; | |
218 | ||
b070e7f3 LP |
219 | if (_unlikely_(!iov[i].iov_base || iov[i].iov_len <= 1)) { |
220 | r = -EINVAL; | |
221 | goto finish; | |
222 | } | |
a5344d2c | 223 | |
7f3e6257 | 224 | c = memchr(iov[i].iov_base, '=', iov[i].iov_len); |
b070e7f3 LP |
225 | if (_unlikely_(!c || c == iov[i].iov_base)) { |
226 | r = -EINVAL; | |
227 | goto finish; | |
228 | } | |
7f3e6257 LP |
229 | |
230 | nl = memchr(iov[i].iov_base, '\n', iov[i].iov_len); | |
231 | if (nl) { | |
b070e7f3 LP |
232 | if (_unlikely_(nl < c)) { |
233 | r = -EINVAL; | |
234 | goto finish; | |
235 | } | |
7f3e6257 LP |
236 | |
237 | /* Already includes a newline? Bummer, then | |
238 | * let's write the variable name, then a | |
239 | * newline, then the size (64bit LE), followed | |
240 | * by the data and a final newline */ | |
241 | ||
242 | w[j].iov_base = iov[i].iov_base; | |
243 | w[j].iov_len = c - (char*) iov[i].iov_base; | |
244 | j++; | |
245 | ||
246 | IOVEC_SET_STRING(w[j++], "\n"); | |
247 | ||
248 | l[i] = htole64(iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1); | |
249 | w[j].iov_base = &l[i]; | |
250 | w[j].iov_len = sizeof(uint64_t); | |
251 | j++; | |
252 | ||
253 | w[j].iov_base = c + 1; | |
254 | w[j].iov_len = iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1; | |
255 | j++; | |
256 | ||
257 | } else | |
258 | /* Nothing special? Then just add the line and | |
259 | * append a newline */ | |
260 | w[j++] = iov[i]; | |
261 | ||
262 | IOVEC_SET_STRING(w[j++], "\n"); | |
263 | } | |
264 | ||
265 | fd = journal_fd(); | |
b070e7f3 LP |
266 | if (_unlikely_(fd < 0)) { |
267 | r = fd; | |
268 | goto finish; | |
269 | } | |
7f3e6257 LP |
270 | |
271 | zero(sa); | |
272 | sa.sun_family = AF_UNIX; | |
5ba081b0 | 273 | strncpy(sa.sun_path, "/run/systemd/journal/socket", sizeof(sa.sun_path)); |
7f3e6257 LP |
274 | |
275 | zero(mh); | |
276 | mh.msg_name = &sa; | |
277 | mh.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(sa.sun_path); | |
278 | mh.msg_iov = w; | |
279 | mh.msg_iovlen = j; | |
280 | ||
0dad12c1 | 281 | k = sendmsg(fd, &mh, MSG_NOSIGNAL); |
b070e7f3 LP |
282 | if (k >= 0) { |
283 | r = 0; | |
284 | goto finish; | |
285 | } | |
0dad12c1 | 286 | |
b070e7f3 LP |
287 | if (errno != EMSGSIZE && errno != ENOBUFS) { |
288 | r = -errno; | |
289 | goto finish; | |
290 | } | |
0dad12c1 LP |
291 | |
292 | /* Message doesn't fit... Let's dump the data in a temporary | |
293 | * file and just pass a file descriptor of it to the other | |
294 | * side */ | |
295 | ||
296 | buffer_fd = mkostemp(path, O_CLOEXEC|O_RDWR); | |
b070e7f3 LP |
297 | if (buffer_fd < 0) { |
298 | r = -errno; | |
299 | goto finish; | |
300 | } | |
0dad12c1 LP |
301 | |
302 | if (unlink(path) < 0) { | |
303 | close_nointr_nofail(buffer_fd); | |
b070e7f3 LP |
304 | r = -errno; |
305 | goto finish; | |
0dad12c1 LP |
306 | } |
307 | ||
308 | n = writev(buffer_fd, w, j); | |
b070e7f3 | 309 | if (n < 0) { |
0dad12c1 | 310 | close_nointr_nofail(buffer_fd); |
b070e7f3 LP |
311 | r = -errno; |
312 | goto finish; | |
0dad12c1 LP |
313 | } |
314 | ||
315 | mh.msg_iov = NULL; | |
316 | mh.msg_iovlen = 0; | |
317 | ||
318 | zero(control); | |
319 | mh.msg_control = &control; | |
320 | mh.msg_controllen = sizeof(control); | |
321 | ||
322 | cmsg = CMSG_FIRSTHDR(&mh); | |
323 | cmsg->cmsg_level = SOL_SOCKET; | |
324 | cmsg->cmsg_type = SCM_RIGHTS; | |
325 | cmsg->cmsg_len = CMSG_LEN(sizeof(int)); | |
326 | memcpy(CMSG_DATA(cmsg), &buffer_fd, sizeof(int)); | |
327 | ||
328 | mh.msg_controllen = cmsg->cmsg_len; | |
329 | ||
330 | k = sendmsg(fd, &mh, MSG_NOSIGNAL); | |
331 | close_nointr_nofail(buffer_fd); | |
332 | ||
b070e7f3 LP |
333 | if (k < 0) { |
334 | r = -errno; | |
335 | goto finish; | |
336 | } | |
337 | ||
338 | r = 0; | |
339 | ||
340 | finish: | |
341 | errno = saved_errno; | |
7f3e6257 | 342 | |
b070e7f3 | 343 | return r; |
7f3e6257 | 344 | } |
fe652127 | 345 | |
18c7ed18 LP |
346 | static int fill_iovec_perror_and_send(const char *message, int skip, struct iovec iov[]) { |
347 | size_t n, k, r; | |
348 | int saved_errno; | |
349 | ||
350 | saved_errno = errno; | |
351 | ||
352 | k = isempty(message) ? 0 : strlen(message) + 2; | |
353 | n = 8 + k + 256 + 1; | |
354 | ||
355 | for (;;) { | |
356 | char buffer[n]; | |
357 | char* j; | |
358 | ||
359 | errno = 0; | |
360 | j = strerror_r(saved_errno, buffer + 8 + k, n - 8 - k); | |
361 | if (errno == 0) { | |
362 | char error[6 + 10 + 1]; /* for a 32bit value */ | |
363 | ||
364 | if (j != buffer + 8 + k) | |
365 | memmove(buffer + 8 + k, j, strlen(j)+1); | |
366 | ||
367 | memcpy(buffer, "MESSAGE=", 8); | |
368 | ||
369 | if (k > 0) { | |
370 | memcpy(buffer + 8, message, k - 2); | |
371 | memcpy(buffer + 8 + k - 2, ": ", 2); | |
372 | } | |
373 | ||
374 | snprintf(error, sizeof(error), "ERRNO=%u", saved_errno); | |
375 | char_array_0(error); | |
376 | ||
377 | IOVEC_SET_STRING(iov[skip+0], "PRIORITY=3"); | |
378 | IOVEC_SET_STRING(iov[skip+1], buffer); | |
379 | IOVEC_SET_STRING(iov[skip+2], error); | |
380 | ||
381 | r = sd_journal_sendv(iov, skip + 3); | |
382 | ||
383 | errno = saved_errno; | |
384 | return r; | |
385 | } | |
386 | ||
387 | if (errno != ERANGE) { | |
388 | r = -errno; | |
389 | errno = saved_errno; | |
390 | return r; | |
391 | } | |
392 | ||
393 | n *= 2; | |
394 | } | |
395 | } | |
396 | ||
397 | _public_ int sd_journal_perror(const char *message) { | |
398 | struct iovec iovec[3]; | |
399 | ||
400 | return fill_iovec_perror_and_send(message, 0, iovec); | |
401 | } | |
402 | ||
4cd9a9d9 | 403 | _public_ int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix) { |
fe652127 LP |
404 | union sockaddr_union sa; |
405 | int fd; | |
406 | char *header; | |
407 | size_t l; | |
408 | ssize_t r; | |
409 | ||
410 | if (priority < 0 || priority > 7) | |
411 | return -EINVAL; | |
412 | ||
413 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); | |
414 | if (fd < 0) | |
415 | return -errno; | |
416 | ||
417 | zero(sa); | |
418 | sa.un.sun_family = AF_UNIX; | |
259d2e76 | 419 | strncpy(sa.un.sun_path, "/run/systemd/journal/stdout", sizeof(sa.un.sun_path)); |
fe652127 LP |
420 | |
421 | r = connect(fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)); | |
422 | if (r < 0) { | |
423 | close_nointr_nofail(fd); | |
424 | return -errno; | |
425 | } | |
426 | ||
86b9b8e7 LP |
427 | if (shutdown(fd, SHUT_RD) < 0) { |
428 | close_nointr_nofail(fd); | |
429 | return -errno; | |
430 | } | |
431 | ||
bb99a35a LP |
432 | fd_inc_sndbuf(fd, SNDBUF_SIZE); |
433 | ||
4cd9a9d9 LP |
434 | if (!identifier) |
435 | identifier = ""; | |
fe652127 | 436 | |
4cd9a9d9 | 437 | l = strlen(identifier); |
8b38f3cc | 438 | header = alloca(l + 1 + 1 + 2 + 2 + 2 + 2 + 2); |
fe652127 | 439 | |
4cd9a9d9 | 440 | memcpy(header, identifier, l); |
fe652127 | 441 | header[l++] = '\n'; |
a6e87e90 | 442 | header[l++] = '\n'; /* unit id */ |
fe652127 LP |
443 | header[l++] = '0' + priority; |
444 | header[l++] = '\n'; | |
4cd9a9d9 | 445 | header[l++] = '0' + !!level_prefix; |
fe652127 LP |
446 | header[l++] = '\n'; |
447 | header[l++] = '0'; | |
448 | header[l++] = '\n'; | |
224f2ee2 LP |
449 | header[l++] = '0'; |
450 | header[l++] = '\n'; | |
451 | header[l++] = '0'; | |
452 | header[l++] = '\n'; | |
fe652127 LP |
453 | |
454 | r = loop_write(fd, header, l, false); | |
455 | if (r < 0) { | |
456 | close_nointr_nofail(fd); | |
457 | return (int) r; | |
458 | } | |
459 | ||
460 | if ((size_t) r != l) { | |
461 | close_nointr_nofail(fd); | |
462 | return -errno; | |
463 | } | |
464 | ||
465 | return fd; | |
466 | } | |
b070e7f3 LP |
467 | |
468 | _public_ int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) { | |
469 | int r; | |
470 | va_list ap; | |
471 | ||
472 | va_start(ap, format); | |
473 | r = sd_journal_printv_with_location(priority, file, line, func, format, ap); | |
474 | va_end(ap); | |
475 | ||
476 | return r; | |
477 | } | |
478 | ||
479 | _public_ int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap) { | |
480 | char buffer[8 + LINE_MAX], p[11]; | |
481 | struct iovec iov[5]; | |
482 | char *f; | |
483 | size_t fl; | |
484 | ||
485 | if (priority < 0 || priority > 7) | |
486 | return -EINVAL; | |
487 | ||
488 | if (_unlikely_(!format)) | |
489 | return -EINVAL; | |
490 | ||
491 | snprintf(p, sizeof(p), "PRIORITY=%i", priority & LOG_PRIMASK); | |
492 | char_array_0(p); | |
493 | ||
494 | memcpy(buffer, "MESSAGE=", 8); | |
495 | vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap); | |
496 | char_array_0(buffer); | |
497 | ||
498 | /* func is initialized from __func__ which is not a macro, but | |
499 | * a static const char[], hence cannot easily be prefixed with | |
500 | * CODE_FUNC=, hence let's do it manually here. */ | |
501 | fl = strlen(func); | |
502 | f = alloca(fl + 10); | |
503 | memcpy(f, "CODE_FUNC=", 10); | |
504 | memcpy(f + 10, func, fl + 1); | |
505 | ||
506 | zero(iov); | |
507 | IOVEC_SET_STRING(iov[0], buffer); | |
508 | IOVEC_SET_STRING(iov[1], p); | |
509 | IOVEC_SET_STRING(iov[2], file); | |
510 | IOVEC_SET_STRING(iov[3], line); | |
511 | IOVEC_SET_STRING(iov[4], f); | |
512 | ||
513 | return sd_journal_sendv(iov, ELEMENTSOF(iov)); | |
514 | } | |
515 | ||
516 | _public_ int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) { | |
517 | int r, i, j; | |
518 | va_list ap; | |
519 | struct iovec *iov = NULL; | |
520 | char *f; | |
521 | size_t fl; | |
522 | ||
523 | va_start(ap, format); | |
524 | i = fill_iovec_sprintf(format, ap, 3, &iov); | |
525 | va_end(ap); | |
526 | ||
527 | if (_unlikely_(i < 0)) { | |
528 | r = i; | |
529 | goto finish; | |
530 | } | |
531 | ||
532 | fl = strlen(func); | |
533 | f = alloca(fl + 10); | |
534 | memcpy(f, "CODE_FUNC=", 10); | |
535 | memcpy(f + 10, func, fl + 1); | |
536 | ||
537 | IOVEC_SET_STRING(iov[0], file); | |
538 | IOVEC_SET_STRING(iov[1], line); | |
539 | IOVEC_SET_STRING(iov[2], f); | |
540 | ||
541 | r = sd_journal_sendv(iov, i); | |
542 | ||
543 | finish: | |
544 | for (j = 3; j < i; j++) | |
545 | free(iov[j].iov_base); | |
546 | ||
547 | free(iov); | |
548 | ||
549 | return r; | |
550 | } | |
551 | ||
18c7ed18 LP |
552 | _public_ int sd_journal_sendv_with_location( |
553 | const char *file, const char *line, | |
554 | const char *func, | |
555 | const struct iovec *iov, int n) { | |
556 | ||
b070e7f3 LP |
557 | struct iovec *niov; |
558 | char *f; | |
559 | size_t fl; | |
560 | ||
561 | if (_unlikely_(!iov)) | |
562 | return -EINVAL; | |
563 | ||
564 | if (_unlikely_(n <= 0)) | |
565 | return -EINVAL; | |
566 | ||
567 | niov = alloca(sizeof(struct iovec) * (n + 3)); | |
568 | memcpy(niov, iov, sizeof(struct iovec) * n); | |
569 | ||
570 | fl = strlen(func); | |
571 | f = alloca(fl + 10); | |
572 | memcpy(f, "CODE_FUNC=", 10); | |
573 | memcpy(f + 10, func, fl + 1); | |
574 | ||
575 | IOVEC_SET_STRING(niov[n++], file); | |
576 | IOVEC_SET_STRING(niov[n++], line); | |
577 | IOVEC_SET_STRING(niov[n++], f); | |
578 | ||
579 | return sd_journal_sendv(niov, n); | |
580 | } | |
18c7ed18 LP |
581 | |
582 | _public_ int sd_journal_perror_with_location( | |
583 | const char *file, const char *line, | |
584 | const char *func, | |
585 | const char *message) { | |
586 | ||
587 | struct iovec iov[6]; | |
588 | size_t fl; | |
589 | char *f; | |
590 | ||
591 | fl = strlen(func); | |
592 | f = alloca(fl + 10); | |
593 | memcpy(f, "CODE_FUNC=", 10); | |
594 | memcpy(f + 10, func, fl + 1); | |
595 | ||
596 | IOVEC_SET_STRING(iov[0], file); | |
597 | IOVEC_SET_STRING(iov[1], line); | |
598 | IOVEC_SET_STRING(iov[2], f); | |
599 | ||
600 | return fill_iovec_perror_and_send(message, 3, iov); | |
601 | } |