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Commit | Line | Data |
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7f3e6257 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2011 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 | |
7f3e6257 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. |
7f3e6257 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
7f3e6257 LP |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
7f3e6257 | 20 | #include <errno.h> |
0dad12c1 | 21 | #include <fcntl.h> |
72f1d5a2 | 22 | #include <printf.h> |
07630cea LP |
23 | #include <stddef.h> |
24 | #include <sys/socket.h> | |
25 | #include <sys/un.h> | |
26 | #include <unistd.h> | |
7f3e6257 | 27 | |
b070e7f3 LP |
28 | #define SD_JOURNAL_SUPPRESS_LOCATION |
29 | ||
7f3e6257 | 30 | #include "sd-journal.h" |
07630cea | 31 | |
b5efdb8a | 32 | #include "alloc-util.h" |
3ffd4af2 | 33 | #include "fd-util.h" |
0d39fa9c | 34 | #include "fileio.h" |
c004493c | 35 | #include "io-util.h" |
a09abc4a | 36 | #include "memfd-util.h" |
07630cea | 37 | #include "socket-util.h" |
15a5e950 | 38 | #include "stdio-util.h" |
07630cea LP |
39 | #include "string-util.h" |
40 | #include "util.h" | |
7f3e6257 | 41 | |
bb99a35a LP |
42 | #define SNDBUF_SIZE (8*1024*1024) |
43 | ||
3ed08c44 LP |
44 | #define ALLOCA_CODE_FUNC(f, func) \ |
45 | do { \ | |
46 | size_t _fl; \ | |
47 | const char *_func = (func); \ | |
48 | char **_f = &(f); \ | |
49 | _fl = strlen(_func) + 1; \ | |
50 | *_f = alloca(_fl + 10); \ | |
51 | memcpy(*_f, "CODE_FUNC=", 10); \ | |
52 | memcpy(*_f + 10, _func, _fl); \ | |
9ed794a3 | 53 | } while (false) |
3ed08c44 | 54 | |
7f3e6257 LP |
55 | /* We open a single fd, and we'll share it with the current process, |
56 | * all its threads, and all its subprocesses. This means we need to | |
57 | * initialize it atomically, and need to operate on it atomically | |
58 | * never assuming we are the only user */ | |
59 | ||
60 | static int journal_fd(void) { | |
61 | int fd; | |
62 | static int fd_plus_one = 0; | |
63 | ||
64 | retry: | |
65 | if (fd_plus_one > 0) | |
66 | return fd_plus_one - 1; | |
67 | ||
68 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0); | |
69 | if (fd < 0) | |
70 | return -errno; | |
71 | ||
bb99a35a LP |
72 | fd_inc_sndbuf(fd, SNDBUF_SIZE); |
73 | ||
7f3e6257 | 74 | if (!__sync_bool_compare_and_swap(&fd_plus_one, 0, fd+1)) { |
03e334a1 | 75 | safe_close(fd); |
7f3e6257 LP |
76 | goto retry; |
77 | } | |
78 | ||
79 | return fd; | |
80 | } | |
81 | ||
a5344d2c | 82 | _public_ int sd_journal_print(int priority, const char *format, ...) { |
7f3e6257 LP |
83 | int r; |
84 | va_list ap; | |
85 | ||
86 | va_start(ap, format); | |
d0bbc21c | 87 | r = sd_journal_printv(priority, format, ap); |
7f3e6257 LP |
88 | va_end(ap); |
89 | ||
90 | return r; | |
91 | } | |
92 | ||
a5344d2c | 93 | _public_ int sd_journal_printv(int priority, const char *format, va_list ap) { |
18c7ed18 LP |
94 | |
95 | /* FIXME: Instead of limiting things to LINE_MAX we could do a | |
96 | C99 variable-length array on the stack here in a loop. */ | |
97 | ||
5ffa8c81 ZJS |
98 | char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1]; |
99 | struct iovec iov[2]; | |
d0bbc21c | 100 | |
1ae464e0 TA |
101 | assert_return(priority >= 0, -EINVAL); |
102 | assert_return(priority <= 7, -EINVAL); | |
103 | assert_return(format, -EINVAL); | |
fe652127 | 104 | |
5ffa8c81 | 105 | xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK); |
7f3e6257 LP |
106 | |
107 | memcpy(buffer, "MESSAGE=", 8); | |
108 | vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap); | |
7f3e6257 | 109 | |
c24f1f9d LP |
110 | /* Strip trailing whitespace, keep prefix whitespace. */ |
111 | (void) strstrip(buffer); | |
112 | ||
0d23bc57 LP |
113 | /* Suppress empty lines */ |
114 | if (isempty(buffer+8)) | |
115 | return 0; | |
116 | ||
e6a7ec4b LP |
117 | iov[0] = IOVEC_MAKE_STRING(buffer); |
118 | iov[1] = IOVEC_MAKE_STRING(p); | |
7f3e6257 | 119 | |
d0bbc21c | 120 | return sd_journal_sendv(iov, 2); |
7f3e6257 LP |
121 | } |
122 | ||
44b601bc | 123 | _printf_(1, 0) static int fill_iovec_sprintf(const char *format, va_list ap, int extra, struct iovec **_iov) { |
5c0aa72a | 124 | PROTECT_ERRNO; |
25d042e8 | 125 | int r, n = 0, i = 0, j; |
7f3e6257 | 126 | struct iovec *iov = NULL; |
b070e7f3 LP |
127 | |
128 | assert(_iov); | |
b070e7f3 LP |
129 | |
130 | if (extra > 0) { | |
131 | n = MAX(extra * 2, extra + 4); | |
132 | iov = malloc0(n * sizeof(struct iovec)); | |
133 | if (!iov) { | |
134 | r = -ENOMEM; | |
135 | goto fail; | |
136 | } | |
137 | ||
138 | i = extra; | |
25d042e8 | 139 | } |
7f3e6257 | 140 | |
7f3e6257 LP |
141 | while (format) { |
142 | struct iovec *c; | |
143 | char *buffer; | |
72f1d5a2 | 144 | va_list aq; |
7f3e6257 LP |
145 | |
146 | if (i >= n) { | |
147 | n = MAX(i*2, 4); | |
148 | c = realloc(iov, n * sizeof(struct iovec)); | |
149 | if (!c) { | |
150 | r = -ENOMEM; | |
151 | goto fail; | |
152 | } | |
153 | ||
154 | iov = c; | |
155 | } | |
156 | ||
72f1d5a2 LP |
157 | va_copy(aq, ap); |
158 | if (vasprintf(&buffer, format, aq) < 0) { | |
159 | va_end(aq); | |
7f3e6257 LP |
160 | r = -ENOMEM; |
161 | goto fail; | |
162 | } | |
72f1d5a2 LP |
163 | va_end(aq); |
164 | ||
165 | VA_FORMAT_ADVANCE(format, ap); | |
7f3e6257 | 166 | |
c24f1f9d LP |
167 | (void) strstrip(buffer); /* strip trailing whitespace, keep prefixing whitespace */ |
168 | ||
e6a7ec4b | 169 | iov[i++] = IOVEC_MAKE_STRING(buffer); |
7f3e6257 LP |
170 | |
171 | format = va_arg(ap, char *); | |
172 | } | |
b070e7f3 LP |
173 | |
174 | *_iov = iov; | |
175 | ||
b070e7f3 LP |
176 | return i; |
177 | ||
178 | fail: | |
179 | for (j = 0; j < i; j++) | |
180 | free(iov[j].iov_base); | |
181 | ||
182 | free(iov); | |
183 | ||
b070e7f3 LP |
184 | return r; |
185 | } | |
186 | ||
187 | _public_ int sd_journal_send(const char *format, ...) { | |
188 | int r, i, j; | |
189 | va_list ap; | |
190 | struct iovec *iov = NULL; | |
191 | ||
192 | va_start(ap, format); | |
193 | i = fill_iovec_sprintf(format, ap, 0, &iov); | |
7f3e6257 LP |
194 | va_end(ap); |
195 | ||
b070e7f3 LP |
196 | if (_unlikely_(i < 0)) { |
197 | r = i; | |
198 | goto finish; | |
199 | } | |
200 | ||
7f3e6257 LP |
201 | r = sd_journal_sendv(iov, i); |
202 | ||
b070e7f3 | 203 | finish: |
7f3e6257 LP |
204 | for (j = 0; j < i; j++) |
205 | free(iov[j].iov_base); | |
206 | ||
207 | free(iov); | |
208 | ||
209 | return r; | |
210 | } | |
211 | ||
a5344d2c | 212 | _public_ int sd_journal_sendv(const struct iovec *iov, int n) { |
5c0aa72a | 213 | PROTECT_ERRNO; |
c79e98ea | 214 | int fd, r; |
61c024b3 | 215 | _cleanup_close_ int buffer_fd = -1; |
7f3e6257 LP |
216 | struct iovec *w; |
217 | uint64_t *l; | |
5c0aa72a | 218 | int i, j = 0; |
fc2fffe7 LP |
219 | static const union sockaddr_union sa = { |
220 | .un.sun_family = AF_UNIX, | |
221 | .un.sun_path = "/run/systemd/journal/socket", | |
6e5abe15 ZJS |
222 | }; |
223 | struct msghdr mh = { | |
fc2fffe7 LP |
224 | .msg_name = (struct sockaddr*) &sa.sa, |
225 | .msg_namelen = SOCKADDR_UN_LEN(sa.un), | |
6e5abe15 | 226 | }; |
0dad12c1 | 227 | ssize_t k; |
ee55db41 | 228 | bool have_syslog_identifier = false; |
c79e98ea | 229 | bool seal = true; |
7f3e6257 | 230 | |
1ae464e0 TA |
231 | assert_return(iov, -EINVAL); |
232 | assert_return(n > 0, -EINVAL); | |
7f3e6257 | 233 | |
9a7800af ZJS |
234 | w = newa(struct iovec, n * 5 + 3); |
235 | l = newa(uint64_t, n); | |
7f3e6257 LP |
236 | |
237 | for (i = 0; i < n; i++) { | |
238 | char *c, *nl; | |
239 | ||
5c0aa72a LP |
240 | if (_unlikely_(!iov[i].iov_base || iov[i].iov_len <= 1)) |
241 | return -EINVAL; | |
a5344d2c | 242 | |
7f3e6257 | 243 | c = memchr(iov[i].iov_base, '=', iov[i].iov_len); |
5c0aa72a LP |
244 | if (_unlikely_(!c || c == iov[i].iov_base)) |
245 | return -EINVAL; | |
7f3e6257 | 246 | |
29abad10 ZJS |
247 | have_syslog_identifier = have_syslog_identifier || |
248 | (c == (char *) iov[i].iov_base + 17 && | |
2a0e0692 | 249 | startswith(iov[i].iov_base, "SYSLOG_IDENTIFIER")); |
ee55db41 | 250 | |
7f3e6257 LP |
251 | nl = memchr(iov[i].iov_base, '\n', iov[i].iov_len); |
252 | if (nl) { | |
5c0aa72a LP |
253 | if (_unlikely_(nl < c)) |
254 | return -EINVAL; | |
7f3e6257 LP |
255 | |
256 | /* Already includes a newline? Bummer, then | |
257 | * let's write the variable name, then a | |
258 | * newline, then the size (64bit LE), followed | |
259 | * by the data and a final newline */ | |
260 | ||
e6a7ec4b LP |
261 | w[j++] = IOVEC_MAKE(iov[i].iov_base, c - (char*) iov[i].iov_base); |
262 | w[j++] = IOVEC_MAKE_STRING("\n"); | |
7f3e6257 LP |
263 | |
264 | l[i] = htole64(iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1); | |
e6a7ec4b | 265 | w[j++] = IOVEC_MAKE(&l[i], sizeof(uint64_t)); |
7f3e6257 | 266 | |
e6a7ec4b | 267 | w[j++] = IOVEC_MAKE(c + 1, iov[i].iov_len - (c - (char*) iov[i].iov_base) - 1); |
7f3e6257 LP |
268 | } else |
269 | /* Nothing special? Then just add the line and | |
270 | * append a newline */ | |
271 | w[j++] = iov[i]; | |
272 | ||
e6a7ec4b | 273 | w[j++] = IOVEC_MAKE_STRING("\n"); |
7f3e6257 LP |
274 | } |
275 | ||
ee55db41 LP |
276 | if (!have_syslog_identifier && |
277 | string_is_safe(program_invocation_short_name)) { | |
278 | ||
279 | /* Implicitly add program_invocation_short_name, if it | |
280 | * is not set explicitly. We only do this for | |
281 | * program_invocation_short_name, and nothing else | |
282 | * since everything else is much nicer to retrieve | |
283 | * from the outside. */ | |
284 | ||
e6a7ec4b LP |
285 | w[j++] = IOVEC_MAKE_STRING("SYSLOG_IDENTIFIER="); |
286 | w[j++] = IOVEC_MAKE_STRING(program_invocation_short_name); | |
287 | w[j++] = IOVEC_MAKE_STRING("\n"); | |
ee55db41 LP |
288 | } |
289 | ||
7f3e6257 | 290 | fd = journal_fd(); |
5c0aa72a LP |
291 | if (_unlikely_(fd < 0)) |
292 | return fd; | |
7f3e6257 | 293 | |
7f3e6257 LP |
294 | mh.msg_iov = w; |
295 | mh.msg_iovlen = j; | |
296 | ||
0dad12c1 | 297 | k = sendmsg(fd, &mh, MSG_NOSIGNAL); |
5c0aa72a LP |
298 | if (k >= 0) |
299 | return 0; | |
0dad12c1 | 300 | |
6c045c0b ZJS |
301 | /* Fail silently if the journal is not available */ |
302 | if (errno == ENOENT) | |
303 | return 0; | |
304 | ||
5c0aa72a LP |
305 | if (errno != EMSGSIZE && errno != ENOBUFS) |
306 | return -errno; | |
0dad12c1 | 307 | |
c79e98ea LP |
308 | /* Message doesn't fit... Let's dump the data in a memfd or |
309 | * temporary file and just pass a file descriptor of it to the | |
310 | * other side. | |
8e33886e | 311 | * |
c79e98ea LP |
312 | * For the temporary files we use /dev/shm instead of /tmp |
313 | * here, since we want this to be a tmpfs, and one that is | |
314 | * available from early boot on and where unprivileged users | |
315 | * can create files. */ | |
73843b52 | 316 | buffer_fd = memfd_new(NULL); |
c79e98ea | 317 | if (buffer_fd < 0) { |
73843b52 | 318 | if (buffer_fd == -ENOSYS) { |
03532f0a | 319 | buffer_fd = open_tmpfile_unlinkable("/dev/shm", O_RDWR | O_CLOEXEC); |
c79e98ea LP |
320 | if (buffer_fd < 0) |
321 | return buffer_fd; | |
322 | ||
323 | seal = false; | |
324 | } else | |
73843b52 | 325 | return buffer_fd; |
c79e98ea | 326 | } |
0dad12c1 | 327 | |
87b02843 | 328 | n = writev(buffer_fd, w, j); |
61c024b3 | 329 | if (n < 0) |
5c0aa72a | 330 | return -errno; |
0dad12c1 | 331 | |
c79e98ea | 332 | if (seal) { |
73843b52 | 333 | r = memfd_set_sealed(buffer_fd); |
c79e98ea | 334 | if (r < 0) |
73843b52 | 335 | return r; |
c79e98ea LP |
336 | } |
337 | ||
4941e4ac ZJS |
338 | r = send_one_fd_sa(fd, buffer_fd, mh.msg_name, mh.msg_namelen, 0); |
339 | if (r == -ENOENT) | |
340 | /* Fail silently if the journal is not available */ | |
341 | return 0; | |
342 | return r; | |
7f3e6257 | 343 | } |
fe652127 | 344 | |
18c7ed18 | 345 | static int fill_iovec_perror_and_send(const char *message, int skip, struct iovec iov[]) { |
5c0aa72a LP |
346 | PROTECT_ERRNO; |
347 | size_t n, k; | |
18c7ed18 LP |
348 | |
349 | k = isempty(message) ? 0 : strlen(message) + 2; | |
350 | n = 8 + k + 256 + 1; | |
351 | ||
352 | for (;;) { | |
353 | char buffer[n]; | |
354 | char* j; | |
355 | ||
356 | errno = 0; | |
5c0aa72a | 357 | j = strerror_r(_saved_errno_, buffer + 8 + k, n - 8 - k); |
18c7ed18 | 358 | if (errno == 0) { |
5ffa8c81 | 359 | char error[sizeof("ERRNO=")-1 + DECIMAL_STR_MAX(int) + 1]; |
18c7ed18 LP |
360 | |
361 | if (j != buffer + 8 + k) | |
362 | memmove(buffer + 8 + k, j, strlen(j)+1); | |
363 | ||
364 | memcpy(buffer, "MESSAGE=", 8); | |
365 | ||
366 | if (k > 0) { | |
367 | memcpy(buffer + 8, message, k - 2); | |
368 | memcpy(buffer + 8 + k - 2, ": ", 2); | |
369 | } | |
370 | ||
5ffa8c81 | 371 | xsprintf(error, "ERRNO=%i", _saved_errno_); |
18c7ed18 | 372 | |
4850d39a | 373 | assert_cc(3 == LOG_ERR); |
e6a7ec4b LP |
374 | iov[skip+0] = IOVEC_MAKE_STRING("PRIORITY=3"); |
375 | iov[skip+1] = IOVEC_MAKE_STRING(buffer); | |
376 | iov[skip+2] = IOVEC_MAKE_STRING(error); | |
18c7ed18 | 377 | |
5c0aa72a | 378 | return sd_journal_sendv(iov, skip + 3); |
18c7ed18 LP |
379 | } |
380 | ||
5c0aa72a LP |
381 | if (errno != ERANGE) |
382 | return -errno; | |
18c7ed18 LP |
383 | |
384 | n *= 2; | |
385 | } | |
386 | } | |
387 | ||
388 | _public_ int sd_journal_perror(const char *message) { | |
389 | struct iovec iovec[3]; | |
390 | ||
391 | return fill_iovec_perror_and_send(message, 0, iovec); | |
392 | } | |
393 | ||
4cd9a9d9 | 394 | _public_ int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix) { |
fc2fffe7 | 395 | static const union sockaddr_union sa = { |
6e5abe15 ZJS |
396 | .un.sun_family = AF_UNIX, |
397 | .un.sun_path = "/run/systemd/journal/stdout", | |
398 | }; | |
61c024b3 | 399 | _cleanup_close_ int fd = -1; |
fe652127 LP |
400 | char *header; |
401 | size_t l; | |
61c024b3 | 402 | int r; |
fe652127 | 403 | |
1ae464e0 TA |
404 | assert_return(priority >= 0, -EINVAL); |
405 | assert_return(priority <= 7, -EINVAL); | |
fe652127 LP |
406 | |
407 | fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0); | |
408 | if (fd < 0) | |
409 | return -errno; | |
410 | ||
fc2fffe7 | 411 | r = connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)); |
61c024b3 | 412 | if (r < 0) |
fe652127 | 413 | return -errno; |
fe652127 | 414 | |
61c024b3 | 415 | if (shutdown(fd, SHUT_RD) < 0) |
86b9b8e7 | 416 | return -errno; |
86b9b8e7 | 417 | |
bb99a35a LP |
418 | fd_inc_sndbuf(fd, SNDBUF_SIZE); |
419 | ||
4cd9a9d9 LP |
420 | if (!identifier) |
421 | identifier = ""; | |
fe652127 | 422 | |
4cd9a9d9 | 423 | l = strlen(identifier); |
8b38f3cc | 424 | header = alloca(l + 1 + 1 + 2 + 2 + 2 + 2 + 2); |
fe652127 | 425 | |
4cd9a9d9 | 426 | memcpy(header, identifier, l); |
fe652127 | 427 | header[l++] = '\n'; |
a6e87e90 | 428 | header[l++] = '\n'; /* unit id */ |
fe652127 LP |
429 | header[l++] = '0' + priority; |
430 | header[l++] = '\n'; | |
4cd9a9d9 | 431 | header[l++] = '0' + !!level_prefix; |
fe652127 LP |
432 | header[l++] = '\n'; |
433 | header[l++] = '0'; | |
434 | header[l++] = '\n'; | |
224f2ee2 LP |
435 | header[l++] = '0'; |
436 | header[l++] = '\n'; | |
437 | header[l++] = '0'; | |
438 | header[l++] = '\n'; | |
fe652127 | 439 | |
553acb7b | 440 | r = loop_write(fd, header, l, false); |
61c024b3 ZJS |
441 | if (r < 0) |
442 | return r; | |
fe652127 | 443 | |
61c024b3 ZJS |
444 | r = fd; |
445 | fd = -1; | |
446 | return r; | |
fe652127 | 447 | } |
b070e7f3 LP |
448 | |
449 | _public_ int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) { | |
450 | int r; | |
451 | va_list ap; | |
452 | ||
453 | va_start(ap, format); | |
454 | r = sd_journal_printv_with_location(priority, file, line, func, format, ap); | |
455 | va_end(ap); | |
456 | ||
457 | return r; | |
458 | } | |
459 | ||
460 | _public_ int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap) { | |
5ffa8c81 | 461 | char buffer[8 + LINE_MAX], p[sizeof("PRIORITY=")-1 + DECIMAL_STR_MAX(int) + 1]; |
b070e7f3 LP |
462 | struct iovec iov[5]; |
463 | char *f; | |
b070e7f3 | 464 | |
1ae464e0 TA |
465 | assert_return(priority >= 0, -EINVAL); |
466 | assert_return(priority <= 7, -EINVAL); | |
467 | assert_return(format, -EINVAL); | |
b070e7f3 | 468 | |
5ffa8c81 | 469 | xsprintf(p, "PRIORITY=%i", priority & LOG_PRIMASK); |
b070e7f3 LP |
470 | |
471 | memcpy(buffer, "MESSAGE=", 8); | |
472 | vsnprintf(buffer+8, sizeof(buffer) - 8, format, ap); | |
b070e7f3 | 473 | |
0d23bc57 LP |
474 | /* Strip trailing whitespace, keep prefixing whitespace */ |
475 | (void) strstrip(buffer); | |
476 | ||
477 | /* Suppress empty lines */ | |
478 | if (isempty(buffer+8)) | |
479 | return 0; | |
c24f1f9d | 480 | |
b070e7f3 LP |
481 | /* func is initialized from __func__ which is not a macro, but |
482 | * a static const char[], hence cannot easily be prefixed with | |
483 | * CODE_FUNC=, hence let's do it manually here. */ | |
3ed08c44 | 484 | ALLOCA_CODE_FUNC(f, func); |
b070e7f3 | 485 | |
e6a7ec4b LP |
486 | iov[0] = IOVEC_MAKE_STRING(buffer); |
487 | iov[1] = IOVEC_MAKE_STRING(p); | |
488 | iov[2] = IOVEC_MAKE_STRING(file); | |
489 | iov[3] = IOVEC_MAKE_STRING(line); | |
490 | iov[4] = IOVEC_MAKE_STRING(f); | |
b070e7f3 LP |
491 | |
492 | return sd_journal_sendv(iov, ELEMENTSOF(iov)); | |
493 | } | |
494 | ||
495 | _public_ int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) { | |
e6a7ec4b | 496 | _cleanup_free_ struct iovec *iov = NULL; |
b070e7f3 LP |
497 | int r, i, j; |
498 | va_list ap; | |
b070e7f3 | 499 | char *f; |
b070e7f3 LP |
500 | |
501 | va_start(ap, format); | |
502 | i = fill_iovec_sprintf(format, ap, 3, &iov); | |
503 | va_end(ap); | |
504 | ||
505 | if (_unlikely_(i < 0)) { | |
506 | r = i; | |
507 | goto finish; | |
508 | } | |
509 | ||
3ed08c44 | 510 | ALLOCA_CODE_FUNC(f, func); |
b070e7f3 | 511 | |
e6a7ec4b LP |
512 | iov[0] = IOVEC_MAKE_STRING(file); |
513 | iov[1] = IOVEC_MAKE_STRING(line); | |
514 | iov[2] = IOVEC_MAKE_STRING(f); | |
b070e7f3 LP |
515 | |
516 | r = sd_journal_sendv(iov, i); | |
517 | ||
518 | finish: | |
519 | for (j = 3; j < i; j++) | |
520 | free(iov[j].iov_base); | |
521 | ||
b070e7f3 LP |
522 | return r; |
523 | } | |
524 | ||
18c7ed18 LP |
525 | _public_ int sd_journal_sendv_with_location( |
526 | const char *file, const char *line, | |
527 | const char *func, | |
528 | const struct iovec *iov, int n) { | |
529 | ||
b070e7f3 LP |
530 | struct iovec *niov; |
531 | char *f; | |
b070e7f3 | 532 | |
1ae464e0 TA |
533 | assert_return(iov, -EINVAL); |
534 | assert_return(n > 0, -EINVAL); | |
b070e7f3 LP |
535 | |
536 | niov = alloca(sizeof(struct iovec) * (n + 3)); | |
537 | memcpy(niov, iov, sizeof(struct iovec) * n); | |
538 | ||
3ed08c44 | 539 | ALLOCA_CODE_FUNC(f, func); |
b070e7f3 | 540 | |
e6a7ec4b LP |
541 | niov[n++] = IOVEC_MAKE_STRING(file); |
542 | niov[n++] = IOVEC_MAKE_STRING(line); | |
543 | niov[n++] = IOVEC_MAKE_STRING(f); | |
b070e7f3 LP |
544 | |
545 | return sd_journal_sendv(niov, n); | |
546 | } | |
18c7ed18 LP |
547 | |
548 | _public_ int sd_journal_perror_with_location( | |
549 | const char *file, const char *line, | |
550 | const char *func, | |
551 | const char *message) { | |
552 | ||
553 | struct iovec iov[6]; | |
18c7ed18 LP |
554 | char *f; |
555 | ||
3ed08c44 | 556 | ALLOCA_CODE_FUNC(f, func); |
18c7ed18 | 557 | |
e6a7ec4b LP |
558 | iov[0] = IOVEC_MAKE_STRING(file); |
559 | iov[1] = IOVEC_MAKE_STRING(line); | |
560 | iov[2] = IOVEC_MAKE_STRING(f); | |
18c7ed18 LP |
561 | |
562 | return fill_iovec_perror_and_send(message, 3, iov); | |
563 | } |