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2ca0435b ZJS |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2013 Zbigniew Jędrzejewski-Szmek | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
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 | |
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 | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
3f6fd1ba | 20 | #include <getopt.h> |
2ca0435b ZJS |
21 | #include <sys/epoll.h> |
22 | #include <sys/prctl.h> | |
23 | #include <sys/socket.h> | |
24 | #include <sys/wait.h> | |
3f6fd1ba | 25 | #include <unistd.h> |
2ca0435b | 26 | |
8dd4c05b | 27 | #include "sd-daemon.h" |
2ca0435b | 28 | |
b5efdb8a | 29 | #include "alloc-util.h" |
cf98937c | 30 | #include "escape.h" |
b5efdb8a | 31 | #include "fd-util.h" |
2ca0435b | 32 | #include "log.h" |
2ca0435b | 33 | #include "macro.h" |
ce30c8dc | 34 | #include "signal-util.h" |
3f6fd1ba | 35 | #include "socket-util.h" |
07630cea | 36 | #include "string-util.h" |
3f6fd1ba | 37 | #include "strv.h" |
2ca0435b ZJS |
38 | |
39 | static char** arg_listen = NULL; | |
40 | static bool arg_accept = false; | |
d31e430f | 41 | static int arg_socket_type = SOCK_STREAM; |
2ca0435b | 42 | static char** arg_args = NULL; |
892213bf | 43 | static char** arg_setenv = NULL; |
cf98937c | 44 | static char **arg_fdnames = NULL; |
eef0a274 | 45 | static bool arg_inetd = false; |
2ca0435b ZJS |
46 | |
47 | static int add_epoll(int epoll_fd, int fd) { | |
30374ebe LP |
48 | struct epoll_event ev = { |
49 | .events = EPOLLIN | |
50 | }; | |
2ca0435b | 51 | int r; |
2ca0435b ZJS |
52 | |
53 | assert(epoll_fd >= 0); | |
54 | assert(fd >= 0); | |
55 | ||
30374ebe | 56 | ev.data.fd = fd; |
2ca0435b | 57 | r = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd, &ev); |
4a62c710 MS |
58 | if (r < 0) |
59 | return log_error_errno(errno, "Failed to add event on epoll fd:%d for fd:%d: %m", epoll_fd, fd); | |
603938e0 LP |
60 | |
61 | return 0; | |
2ca0435b ZJS |
62 | } |
63 | ||
64 | static int open_sockets(int *epoll_fd, bool accept) { | |
30374ebe | 65 | char **address; |
29a5ca9b | 66 | int n, fd, r; |
2ca0435b | 67 | int count = 0; |
2ca0435b ZJS |
68 | |
69 | n = sd_listen_fds(true); | |
eb56eb9b MS |
70 | if (n < 0) |
71 | return log_error_errno(n, "Failed to read listening file descriptors from environment: %m"); | |
30374ebe LP |
72 | if (n > 0) { |
73 | log_info("Received %i descriptors via the environment.", n); | |
2ca0435b | 74 | |
30374ebe LP |
75 | for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) { |
76 | r = fd_cloexec(fd, arg_accept); | |
77 | if (r < 0) | |
78 | return r; | |
2ca0435b | 79 | |
313cefa1 | 80 | count++; |
30374ebe | 81 | } |
2ca0435b ZJS |
82 | } |
83 | ||
c0997164 ZJS |
84 | /* Close logging and all other descriptors */ |
85 | if (arg_listen) { | |
86 | int except[3 + n]; | |
87 | ||
88 | for (fd = 0; fd < SD_LISTEN_FDS_START + n; fd++) | |
89 | except[fd] = fd; | |
90 | ||
91 | log_close(); | |
92 | close_all_fds(except, 3 + n); | |
93 | } | |
94 | ||
fff40a51 ZJS |
95 | /** Note: we leak some fd's on error here. I doesn't matter |
96 | * much, since the program will exit immediately anyway, but | |
97 | * would be a pain to fix. | |
98 | */ | |
99 | ||
2ca0435b | 100 | STRV_FOREACH(address, arg_listen) { |
d31e430f | 101 | fd = make_socket_fd(LOG_DEBUG, *address, arg_socket_type, (arg_accept*SOCK_CLOEXEC)); |
2ca0435b | 102 | if (fd < 0) { |
c0997164 | 103 | log_open(); |
23bbb0de | 104 | return log_error_errno(fd, "Failed to open '%s': %m", *address); |
2ca0435b ZJS |
105 | } |
106 | ||
175a3d25 | 107 | assert(fd == SD_LISTEN_FDS_START + count); |
313cefa1 | 108 | count++; |
2ca0435b ZJS |
109 | } |
110 | ||
c0997164 ZJS |
111 | if (arg_listen) |
112 | log_open(); | |
113 | ||
2ca0435b | 114 | *epoll_fd = epoll_create1(EPOLL_CLOEXEC); |
4a62c710 MS |
115 | if (*epoll_fd < 0) |
116 | return log_error_errno(errno, "Failed to create epoll object: %m"); | |
2ca0435b ZJS |
117 | |
118 | for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + count; fd++) { | |
30374ebe LP |
119 | _cleanup_free_ char *name = NULL; |
120 | ||
121 | getsockname_pretty(fd, &name); | |
2c408cb6 | 122 | log_info("Listening on %s as %i.", strna(name), fd); |
30374ebe | 123 | |
29a5ca9b | 124 | r = add_epoll(*epoll_fd, fd); |
2ca0435b ZJS |
125 | if (r < 0) |
126 | return r; | |
127 | } | |
128 | ||
129 | return count; | |
130 | } | |
131 | ||
eef0a274 | 132 | static int exec_process(const char* name, char **argv, char **env, int start_fd, int n_fds) { |
30374ebe | 133 | |
30374ebe | 134 | _cleanup_strv_free_ char **envp = NULL; |
eef0a274 | 135 | _cleanup_free_ char *joined = NULL; |
30374ebe | 136 | unsigned n_env = 0, length; |
eef0a274 | 137 | const char *tocopy; |
eef0a274 LP |
138 | char **s; |
139 | int r; | |
140 | ||
141 | if (arg_inetd && n_fds != 1) { | |
142 | log_error("--inetd only supported for single file descriptors."); | |
143 | return -EINVAL; | |
144 | } | |
2ca0435b | 145 | |
892213bf | 146 | length = strv_length(arg_setenv); |
30374ebe | 147 | |
8dd4c05b LP |
148 | /* PATH, TERM, HOME, USER, LISTEN_FDS, LISTEN_PID, LISTEN_FDNAMES, NULL */ |
149 | envp = new0(char *, length + 8); | |
30374ebe LP |
150 | if (!envp) |
151 | return log_oom(); | |
5e65c93a | 152 | |
892213bf | 153 | STRV_FOREACH(s, arg_setenv) { |
eef0a274 | 154 | |
fa994f91 LP |
155 | if (strchr(*s, '=')) { |
156 | char *k; | |
157 | ||
158 | k = strdup(*s); | |
159 | if (!k) | |
160 | return log_oom(); | |
161 | ||
162 | envp[n_env++] = k; | |
163 | } else { | |
8dd4c05b | 164 | _cleanup_free_ char *p; |
fa994f91 | 165 | const char *n; |
8dd4c05b LP |
166 | |
167 | p = strappend(*s, "="); | |
5e65c93a ZJS |
168 | if (!p) |
169 | return log_oom(); | |
fa994f91 LP |
170 | |
171 | n = strv_find_prefix(env, p); | |
172 | if (!n) | |
173 | continue; | |
174 | ||
175 | envp[n_env] = strdup(n); | |
176 | if (!envp[n_env]) | |
177 | return log_oom(); | |
eef0a274 | 178 | |
313cefa1 | 179 | n_env++; |
5e65c93a ZJS |
180 | } |
181 | } | |
182 | ||
eef0a274 | 183 | FOREACH_STRING(tocopy, "TERM=", "PATH=", "USER=", "HOME=") { |
fa994f91 LP |
184 | const char *n; |
185 | ||
eef0a274 | 186 | n = strv_find_prefix(env, tocopy); |
fa994f91 LP |
187 | if (!n) |
188 | continue; | |
189 | ||
190 | envp[n_env] = strdup(n); | |
191 | if (!envp[n_env]) | |
192 | return log_oom(); | |
193 | ||
313cefa1 | 194 | n_env++; |
2ca0435b ZJS |
195 | } |
196 | ||
eef0a274 LP |
197 | if (arg_inetd) { |
198 | assert(n_fds == 1); | |
2ca0435b | 199 | |
eef0a274 LP |
200 | r = dup2(start_fd, STDIN_FILENO); |
201 | if (r < 0) | |
202 | return log_error_errno(errno, "Failed to dup connection to stdin: %m"); | |
8dd4c05b | 203 | |
eef0a274 LP |
204 | r = dup2(start_fd, STDOUT_FILENO); |
205 | if (r < 0) | |
206 | return log_error_errno(errno, "Failed to dup connection to stdout: %m"); | |
207 | ||
208 | start_fd = safe_close(start_fd); | |
209 | } else { | |
210 | if (start_fd != SD_LISTEN_FDS_START) { | |
211 | assert(n_fds == 1); | |
212 | ||
213 | r = dup2(start_fd, SD_LISTEN_FDS_START); | |
214 | if (r < 0) | |
215 | return log_error_errno(errno, "Failed to dup connection: %m"); | |
216 | ||
217 | safe_close(start_fd); | |
218 | start_fd = SD_LISTEN_FDS_START; | |
219 | } | |
220 | ||
221 | if (asprintf((char**)(envp + n_env++), "LISTEN_FDS=%i", n_fds) < 0) | |
8dd4c05b LP |
222 | return log_oom(); |
223 | ||
eef0a274 LP |
224 | if (asprintf((char**)(envp + n_env++), "LISTEN_PID=" PID_FMT, getpid()) < 0) |
225 | return log_oom(); | |
8dd4c05b | 226 | |
cf98937c ZJS |
227 | if (arg_fdnames) { |
228 | _cleanup_free_ char *names = NULL; | |
229 | size_t len; | |
eef0a274 | 230 | char *e; |
cf98937c ZJS |
231 | int i; |
232 | ||
233 | len = strv_length(arg_fdnames); | |
234 | if (len == 1) | |
235 | for (i = 1; i < n_fds; i++) { | |
236 | r = strv_extend(&arg_fdnames, arg_fdnames[0]); | |
237 | if (r < 0) | |
238 | return log_error_errno(r, "Failed to extend strv: %m"); | |
239 | } | |
240 | else if (len != (unsigned) n_fds) | |
241 | log_warning("The number of fd names is different than number of fds: %zu vs %d", | |
242 | len, n_fds); | |
eef0a274 | 243 | |
cf98937c ZJS |
244 | names = strv_join(arg_fdnames, ":"); |
245 | if (!names) | |
8dd4c05b | 246 | return log_oom(); |
eef0a274 | 247 | |
cf98937c ZJS |
248 | e = strappend("LISTEN_FDNAMES=", names); |
249 | if (!e) | |
250 | return log_oom(); | |
8dd4c05b | 251 | |
eef0a274 | 252 | envp[n_env++] = e; |
8dd4c05b | 253 | } |
8dd4c05b LP |
254 | } |
255 | ||
eef0a274 LP |
256 | joined = strv_join(argv, " "); |
257 | if (!joined) | |
2ca0435b ZJS |
258 | return log_oom(); |
259 | ||
eef0a274 | 260 | log_info("Execing %s (%s)", name, joined); |
2ca0435b | 261 | execvpe(name, argv, envp); |
30374ebe | 262 | |
eef0a274 | 263 | return log_error_errno(errno, "Failed to execp %s (%s): %m", name, joined); |
2ca0435b ZJS |
264 | } |
265 | ||
eef0a274 LP |
266 | static int fork_and_exec_process(const char* child, char** argv, char **env, int fd) { |
267 | _cleanup_free_ char *joined = NULL; | |
2ca0435b | 268 | pid_t parent_pid, child_pid; |
2ca0435b | 269 | |
eef0a274 LP |
270 | joined = strv_join(argv, " "); |
271 | if (!joined) | |
2ca0435b ZJS |
272 | return log_oom(); |
273 | ||
274 | parent_pid = getpid(); | |
275 | ||
276 | child_pid = fork(); | |
4a62c710 MS |
277 | if (child_pid < 0) |
278 | return log_error_errno(errno, "Failed to fork: %m"); | |
2ca0435b ZJS |
279 | |
280 | /* In the child */ | |
281 | if (child_pid == 0) { | |
ce30c8dc LP |
282 | |
283 | (void) reset_all_signal_handlers(); | |
284 | (void) reset_signal_mask(); | |
285 | ||
2ca0435b ZJS |
286 | /* Make sure the child goes away when the parent dies */ |
287 | if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0) | |
288 | _exit(EXIT_FAILURE); | |
289 | ||
290 | /* Check whether our parent died before we were able | |
291 | * to set the death signal */ | |
292 | if (getppid() != parent_pid) | |
293 | _exit(EXIT_SUCCESS); | |
294 | ||
eef0a274 | 295 | exec_process(child, argv, env, fd, 1); |
2ca0435b ZJS |
296 | _exit(EXIT_FAILURE); |
297 | } | |
298 | ||
eef0a274 | 299 | log_info("Spawned %s (%s) as PID %d", child, joined, child_pid); |
2ca0435b ZJS |
300 | return 0; |
301 | } | |
302 | ||
303 | static int do_accept(const char* name, char **argv, char **envp, int fd) { | |
30374ebe | 304 | _cleanup_free_ char *local = NULL, *peer = NULL; |
eef0a274 | 305 | _cleanup_close_ int fd_accepted = -1; |
2ca0435b | 306 | |
eef0a274 LP |
307 | fd_accepted = accept4(fd, NULL, NULL, 0); |
308 | if (fd_accepted < 0) | |
08719b64 | 309 | return log_error_errno(errno, "Failed to accept connection on fd:%d: %m", fd); |
2ca0435b | 310 | |
eef0a274 LP |
311 | getsockname_pretty(fd_accepted, &local); |
312 | getpeername_pretty(fd_accepted, true, &peer); | |
30374ebe | 313 | log_info("Connection from %s to %s", strna(peer), strna(local)); |
2ca0435b | 314 | |
eef0a274 | 315 | return fork_and_exec_process(name, argv, envp, fd_accepted); |
2ca0435b ZJS |
316 | } |
317 | ||
318 | /* SIGCHLD handler. */ | |
e9c1ea9d | 319 | static void sigchld_hdl(int sig, siginfo_t *t, void *data) { |
9d458c09 LP |
320 | PROTECT_ERRNO; |
321 | ||
2ca0435b | 322 | log_info("Child %d died with code %d", t->si_pid, t->si_status); |
08719b64 | 323 | |
e9c1ea9d | 324 | /* Wait for a dead child. */ |
08719b64 | 325 | (void) waitpid(t->si_pid, NULL, 0); |
2ca0435b ZJS |
326 | } |
327 | ||
328 | static int install_chld_handler(void) { | |
08719b64 | 329 | static const struct sigaction act = { |
c0997164 ZJS |
330 | .sa_flags = SA_SIGINFO, |
331 | .sa_sigaction = sigchld_hdl, | |
332 | }; | |
2ca0435b | 333 | |
08719b64 LP |
334 | int r; |
335 | ||
2ca0435b ZJS |
336 | r = sigaction(SIGCHLD, &act, 0); |
337 | if (r < 0) | |
08719b64 LP |
338 | return log_error_errno(errno, "Failed to install SIGCHLD handler: %m"); |
339 | ||
340 | return 0; | |
2ca0435b ZJS |
341 | } |
342 | ||
601185b4 | 343 | static void help(void) { |
2ca0435b ZJS |
344 | printf("%s [OPTIONS...]\n\n" |
345 | "Listen on sockets and launch child on connection.\n\n" | |
346 | "Options:\n" | |
cf98937c ZJS |
347 | " -h --help Show this help and exit\n" |
348 | " --version Print version string and exit\n" | |
349 | " -l --listen=ADDR Listen for raw connections at ADDR\n" | |
350 | " -d --datagram Listen on datagram instead of stream socket\n" | |
351 | " --seqpacket Listen on SOCK_SEQPACKET instead of stream socket\n" | |
352 | " -a --accept Spawn separate child for each connection\n" | |
353 | " -E --setenv=NAME[=VALUE] Pass an environment variable to children\n" | |
354 | " --fdname=NAME[:NAME...] Specify names for file descriptors\n" | |
355 | " --inetd Enable inetd file descriptor passing protocol\n" | |
2ca0435b ZJS |
356 | "\n" |
357 | "Note: file descriptors from sd_listen_fds() will be passed through.\n" | |
601185b4 | 358 | , program_invocation_short_name); |
2ca0435b ZJS |
359 | } |
360 | ||
361 | static int parse_argv(int argc, char *argv[]) { | |
362 | enum { | |
363 | ARG_VERSION = 0x100, | |
8dd4c05b | 364 | ARG_FDNAME, |
d31e430f | 365 | ARG_SEQPACKET, |
eef0a274 | 366 | ARG_INETD, |
2ca0435b ZJS |
367 | }; |
368 | ||
369 | static const struct option options[] = { | |
892213bf ZJS |
370 | { "help", no_argument, NULL, 'h' }, |
371 | { "version", no_argument, NULL, ARG_VERSION }, | |
7b7afdfc | 372 | { "datagram", no_argument, NULL, 'd' }, |
d31e430f | 373 | { "seqpacket", no_argument, NULL, ARG_SEQPACKET }, |
892213bf ZJS |
374 | { "listen", required_argument, NULL, 'l' }, |
375 | { "accept", no_argument, NULL, 'a' }, | |
376 | { "setenv", required_argument, NULL, 'E' }, | |
8dd4c05b LP |
377 | { "environment", required_argument, NULL, 'E' }, /* legacy alias */ |
378 | { "fdname", required_argument, NULL, ARG_FDNAME }, | |
eef0a274 | 379 | { "inetd", no_argument, NULL, ARG_INETD }, |
eb9da376 | 380 | {} |
2ca0435b ZJS |
381 | }; |
382 | ||
8dd4c05b | 383 | int c, r; |
2ca0435b ZJS |
384 | |
385 | assert(argc >= 0); | |
386 | assert(argv); | |
387 | ||
b722348d | 388 | while ((c = getopt_long(argc, argv, "+hl:aE:d", options, NULL)) >= 0) |
2ca0435b ZJS |
389 | switch(c) { |
390 | case 'h': | |
601185b4 ZJS |
391 | help(); |
392 | return 0; | |
2ca0435b ZJS |
393 | |
394 | case ARG_VERSION: | |
3f6fd1ba | 395 | return version(); |
2ca0435b | 396 | |
8dd4c05b LP |
397 | case 'l': |
398 | r = strv_extend(&arg_listen, optarg); | |
2ca0435b | 399 | if (r < 0) |
8dd4c05b | 400 | return log_oom(); |
2ca0435b ZJS |
401 | |
402 | break; | |
2ca0435b | 403 | |
7b7afdfc | 404 | case 'd': |
d31e430f LP |
405 | if (arg_socket_type == SOCK_SEQPACKET) { |
406 | log_error("--datagram may not be combined with --seqpacket."); | |
407 | return -EINVAL; | |
408 | } | |
409 | ||
410 | arg_socket_type = SOCK_DGRAM; | |
411 | break; | |
412 | ||
413 | case ARG_SEQPACKET: | |
414 | if (arg_socket_type == SOCK_DGRAM) { | |
415 | log_error("--seqpacket may not be combined with --datagram."); | |
416 | return -EINVAL; | |
417 | } | |
418 | ||
419 | arg_socket_type = SOCK_SEQPACKET; | |
7b7afdfc SS |
420 | break; |
421 | ||
2ca0435b ZJS |
422 | case 'a': |
423 | arg_accept = true; | |
424 | break; | |
425 | ||
8dd4c05b LP |
426 | case 'E': |
427 | r = strv_extend(&arg_setenv, optarg); | |
5e65c93a | 428 | if (r < 0) |
8dd4c05b | 429 | return log_oom(); |
5e65c93a ZJS |
430 | |
431 | break; | |
8dd4c05b | 432 | |
cf98937c ZJS |
433 | case ARG_FDNAME: { |
434 | _cleanup_strv_free_ char **names; | |
435 | char **s; | |
436 | ||
437 | names = strv_split(optarg, ":"); | |
438 | if (!names) | |
439 | return log_oom(); | |
440 | ||
441 | STRV_FOREACH(s, names) | |
442 | if (!fdname_is_valid(*s)) { | |
443 | _cleanup_free_ char *esc; | |
163c76c9 | 444 | |
cf98937c ZJS |
445 | esc = cescape(*s); |
446 | log_warning("File descriptor name \"%s\" is not valid.", esc); | |
447 | } | |
448 | ||
449 | /* Empty optargs means one empty name */ | |
450 | r = strv_extend_strv(&arg_fdnames, | |
451 | strv_isempty(names) ? STRV_MAKE("") : names, | |
452 | false); | |
453 | if (r < 0) | |
454 | return log_error_errno(r, "strv_extend_strv: %m"); | |
8dd4c05b | 455 | break; |
cf98937c | 456 | } |
5e65c93a | 457 | |
eef0a274 LP |
458 | case ARG_INETD: |
459 | arg_inetd = true; | |
460 | break; | |
461 | ||
2ca0435b ZJS |
462 | case '?': |
463 | return -EINVAL; | |
464 | ||
465 | default: | |
eb9da376 | 466 | assert_not_reached("Unhandled option"); |
2ca0435b ZJS |
467 | } |
468 | ||
469 | if (optind == argc) { | |
601185b4 | 470 | log_error("%s: command to execute is missing.", |
2ca0435b ZJS |
471 | program_invocation_short_name); |
472 | return -EINVAL; | |
473 | } | |
474 | ||
d31e430f | 475 | if (arg_socket_type == SOCK_DGRAM && arg_accept) { |
7b7afdfc SS |
476 | log_error("Datagram sockets do not accept connections. " |
477 | "The --datagram and --accept options may not be combined."); | |
478 | return -EINVAL; | |
479 | } | |
480 | ||
2ca0435b ZJS |
481 | arg_args = argv + optind; |
482 | ||
483 | return 1 /* work to do */; | |
484 | } | |
485 | ||
486 | int main(int argc, char **argv, char **envp) { | |
487 | int r, n; | |
488 | int epoll_fd = -1; | |
489 | ||
2ca0435b | 490 | log_parse_environment(); |
eceb8483 | 491 | log_open(); |
2ca0435b ZJS |
492 | |
493 | r = parse_argv(argc, argv); | |
494 | if (r <= 0) | |
495 | return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE; | |
496 | ||
497 | r = install_chld_handler(); | |
498 | if (r < 0) | |
499 | return EXIT_FAILURE; | |
500 | ||
501 | n = open_sockets(&epoll_fd, arg_accept); | |
502 | if (n < 0) | |
503 | return EXIT_FAILURE; | |
2c408cb6 LP |
504 | if (n == 0) { |
505 | log_error("No sockets to listen on specified or passed in."); | |
506 | return EXIT_FAILURE; | |
507 | } | |
2ca0435b | 508 | |
eceb8483 | 509 | for (;;) { |
2ca0435b ZJS |
510 | struct epoll_event event; |
511 | ||
512 | r = epoll_wait(epoll_fd, &event, 1, -1); | |
513 | if (r < 0) { | |
514 | if (errno == EINTR) | |
515 | continue; | |
516 | ||
56f64d95 | 517 | log_error_errno(errno, "epoll_wait() failed: %m"); |
2ca0435b ZJS |
518 | return EXIT_FAILURE; |
519 | } | |
520 | ||
2c408cb6 | 521 | log_info("Communication attempt on fd %i.", event.data.fd); |
2ca0435b | 522 | if (arg_accept) { |
d31e430f | 523 | r = do_accept(argv[optind], argv + optind, envp, event.data.fd); |
2ca0435b ZJS |
524 | if (r < 0) |
525 | return EXIT_FAILURE; | |
526 | } else | |
527 | break; | |
528 | } | |
529 | ||
eef0a274 | 530 | exec_process(argv[optind], argv + optind, envp, SD_LISTEN_FDS_START, n); |
2ca0435b ZJS |
531 | |
532 | return EXIT_SUCCESS; | |
533 | } |