Commit | Line | Data |
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410c8acf | 1 | /* -*-c-*- |
2 | * | |
2d752320 | 3 | * $Id$ |
410c8acf | 4 | * |
5 | * Client for TrIPE | |
6 | * | |
7 | * (c) 2001 Straylight/Edgeware | |
8 | */ | |
9 | ||
10 | /*----- Licensing notice --------------------------------------------------* | |
11 | * | |
12 | * This file is part of Trivial IP Encryption (TrIPE). | |
13 | * | |
14 | * TrIPE is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * TrIPE is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with TrIPE; if not, write to the Free Software Foundation, | |
26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
27 | */ | |
28 | ||
410c8acf | 29 | /*----- Header files ------------------------------------------------------*/ |
30 | ||
73189848 | 31 | #include "config.h" |
32 | ||
410c8acf | 33 | #include <ctype.h> |
34 | #include <errno.h> | |
35 | #include <signal.h> | |
36 | #include <stdio.h> | |
37 | #include <stdlib.h> | |
38 | #include <string.h> | |
39 | #include <time.h> | |
40 | ||
41 | #include <sys/types.h> | |
42 | #include <sys/time.h> | |
43 | #include <unistd.h> | |
44 | #include <fcntl.h> | |
45 | #include <sys/wait.h> | |
46 | #include <syslog.h> | |
47 | ||
48 | #include <sys/socket.h> | |
49 | #include <sys/un.h> | |
50 | #include <arpa/inet.h> | |
51 | #include <netdb.h> | |
52 | ||
53 | #include <mLib/alloc.h> | |
19dd2531 | 54 | #include <mLib/daemonize.h> |
410c8acf | 55 | #include <mLib/darray.h> |
56 | #include <mLib/dstr.h> | |
410c8acf | 57 | #include <mLib/mdwopt.h> |
58 | #include <mLib/quis.h> | |
59 | #include <mLib/report.h> | |
60 | #include <mLib/sel.h> | |
61 | #include <mLib/selbuf.h> | |
5f5150b1 | 62 | #include <mLib/sig.h> |
410c8acf | 63 | #include <mLib/str.h> |
19dd2531 | 64 | #include <mLib/versioncmp.h> |
410c8acf | 65 | |
66 | #include "util.h" | |
67 | ||
68 | #undef sun | |
69 | ||
70 | /*----- Data structures ---------------------------------------------------*/ | |
71 | ||
72 | #ifndef STRING_V | |
73 | # define STRING_V | |
74 | DA_DECL(string_v, char *); | |
75 | #endif | |
76 | ||
77 | /*----- Static variables --------------------------------------------------*/ | |
78 | ||
06b2a088 | 79 | static const char *pidfile = 0; |
80 | static const char *logname = 0; | |
410c8acf | 81 | static FILE *logfp = 0; |
82 | static unsigned f = 0; | |
83 | static int fd; | |
de014da6 | 84 | static const char *bgtag = 0; |
410c8acf | 85 | |
86 | #define f_bogus 1u | |
87 | #define f_spawn 2u | |
88 | #define f_daemon 4u | |
89 | #define f_spawnopts 8u | |
90 | #define f_syslog 16u | |
91 | #define f_command 32u | |
92 | #define f_noinput 64u | |
93 | #define f_warn 128u | |
94 | #define f_uclose 256u | |
95 | ||
96 | /*----- Main code ---------------------------------------------------------*/ | |
97 | ||
98 | static void reap(int sig) | |
99 | { | |
410c8acf | 100 | int e = errno; |
06b2a088 | 101 | while (waitpid(-1, 0, WNOHANG) > 0) |
410c8acf | 102 | ; |
103 | errno = e; | |
104 | } | |
105 | ||
106 | static void writelog(const char *cat, const char *msg) | |
107 | { | |
108 | char buf[256]; | |
109 | time_t t = time(0); | |
110 | struct tm *tm = localtime(&t); | |
111 | strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", tm); | |
112 | fprintf(logfp, "%s %s: %s\n", buf, cat, msg); | |
113 | } | |
114 | ||
de014da6 | 115 | static void checkbg(char **p) |
116 | { | |
117 | char *q = str_getword(p); | |
118 | if (!q) | |
119 | die(EXIT_FAILURE, "missing background tag"); | |
120 | if (!bgtag || strcmp(bgtag, q) != 0) | |
121 | die(EXIT_FAILURE, "unexpected background tag `%s'", q); | |
122 | } | |
123 | ||
124 | static void checkfg(void) | |
125 | { | |
126 | if (bgtag) | |
127 | die(EXIT_FAILURE, "unexpected foreground response"); | |
128 | } | |
129 | ||
6be88c14 | 130 | static void cline(char *p, size_t len, void *b) |
410c8acf | 131 | { |
132 | char *q; | |
133 | if (!p) { | |
134 | if (f & f_command) | |
135 | die(EXIT_FAILURE, "server dropped the connection"); | |
136 | exit(0); | |
137 | } | |
138 | q = str_getword(&p); | |
139 | if (!q) | |
140 | return; | |
141 | if (strcmp(q, "WARN") == 0) { | |
142 | if (f & f_syslog) | |
143 | syslog(LOG_WARNING, "%s", p); | |
144 | if (logfp) | |
145 | writelog("warning", p); | |
146 | if (f & f_warn) | |
147 | fprintf(stderr, "Warning: %s\n", p); | |
148 | } else if (strcmp(q, "TRACE") == 0) { | |
149 | if (f & f_syslog) | |
150 | syslog(LOG_DEBUG, "%s", p); | |
151 | if (logfp) | |
152 | writelog("debug", p); | |
153 | } else if (!(f & f_command)) { | |
154 | if (f & f_syslog) | |
155 | syslog(LOG_ERR, "unexpected output `%s %s'", q, p); | |
156 | if (logfp) { | |
157 | dstr d = DSTR_INIT; | |
158 | dstr_putf(&d, "unexpected output `%s %s'", q, p); | |
159 | writelog("error", d.buf); | |
160 | dstr_destroy(&d); | |
161 | } | |
de014da6 | 162 | } else if (strcmp(q, "FAIL") == 0) { |
163 | checkfg(); | |
410c8acf | 164 | die(EXIT_FAILURE, "%s", p); |
de014da6 | 165 | } else if (strcmp(q, "INFO") == 0) { |
166 | checkfg(); | |
410c8acf | 167 | puts(p); |
5136c31e | 168 | fflush(stdout); |
de014da6 | 169 | } else if (strcmp(q, "OK") == 0) { |
170 | checkfg(); | |
171 | exit(0); | |
172 | } else if (strcmp(q, "BGDETACH") == 0) { | |
173 | if (bgtag) | |
174 | die(EXIT_FAILURE, "repeat detach"); | |
175 | bgtag = xstrdup(p); | |
176 | } else if (strcmp(q, "BGOK") == 0) { | |
177 | checkbg(&p); | |
410c8acf | 178 | exit(0); |
de014da6 | 179 | } else if (strcmp(q, "BGINFO") == 0) { |
180 | checkbg(&p); | |
181 | puts(p); | |
5136c31e | 182 | fflush(stdout); |
de014da6 | 183 | } else if (strcmp(q, "BGFAIL") == 0) { |
184 | checkbg(&p); | |
185 | die(EXIT_FAILURE, "%s", p); | |
186 | } else | |
410c8acf | 187 | die(EXIT_FAILURE, "unexpected output `%s %s'", q, p); |
188 | } | |
189 | ||
6be88c14 | 190 | static void sline(char *p, size_t len, void *b) |
410c8acf | 191 | { |
192 | if (!p) { | |
193 | if (!(f & f_uclose)) | |
194 | moan("server closed the connection"); | |
195 | exit(0); | |
196 | } | |
197 | puts(p); | |
5136c31e | 198 | fflush(stdout); |
410c8acf | 199 | } |
200 | ||
6be88c14 | 201 | static void uline(char *p, size_t len, void *b) |
410c8acf | 202 | { |
410c8acf | 203 | if (!p) { |
204 | selbuf_destroy(b); | |
205 | shutdown(fd, 1); | |
206 | f |= f_uclose; | |
207 | } else { | |
6be88c14 | 208 | p[len] = '\n'; |
3cdc3f3a | 209 | errno = EIO; |
210 | if (write(fd, p, len + 1) != len + 1) | |
211 | moan("write failed: %s", strerror(errno)); | |
212 | } | |
213 | } | |
214 | ||
215 | static void setup(const char *cmd) | |
216 | { | |
217 | dstr d = DSTR_INIT; | |
218 | char ch; | |
219 | char *p, *q; | |
220 | int n; | |
221 | ||
222 | dstr_puts(&d, cmd); | |
223 | dstr_putc(&d, '\n'); | |
224 | errno = EIO; /* Relax: be vague */ | |
225 | if (write(fd, d.buf, d.len) != d.len) { | |
226 | die(EXIT_FAILURE, "error sending setup command `%s': %s", | |
227 | cmd, strerror(errno)); | |
228 | } | |
229 | dstr_reset(&d); | |
230 | for (;;) { | |
231 | n = read(fd, &ch, 1); | |
232 | if (!n) | |
233 | die(EXIT_FAILURE, "unexpected EOF during setup"); | |
234 | if (n < 0) { | |
235 | die(EXIT_FAILURE, "error receiving reply to `%s': %s", | |
236 | cmd, strerror(errno)); | |
237 | } | |
238 | if (d.len < 256) | |
239 | dstr_putc(&d, ch); | |
240 | if (ch == '\n') { | |
241 | p = d.buf; | |
242 | q = str_getword(&p); | |
243 | if (!q) | |
244 | ; | |
245 | else if (strcmp(q, "OK") == 0) | |
246 | return; | |
247 | else if (strcmp(q, "FAIL") == 0) | |
248 | die(EXIT_FAILURE, "setup command `%s' failed: %s", cmd, p); | |
249 | dstr_reset(&d); | |
250 | } | |
410c8acf | 251 | } |
252 | } | |
253 | ||
9dd01bc6 | 254 | static void logfile(const char *name) |
255 | { | |
fa4bef80 | 256 | FILE *fp; |
257 | ||
258 | if ((fp = fopen(name, "a")) != 0) { | |
259 | if (logfp) | |
260 | fclose(logfp); | |
261 | logfp = fp; | |
262 | setvbuf(logfp, 0, _IOLBF, BUFSIZ); | |
263 | } else { | |
264 | dstr d = DSTR_INIT; | |
265 | dstr_putf(&d, "error opening logfile `%s': %s", name, strerror(errno)); | |
266 | if (logfp) | |
267 | writelog("error", d.buf); | |
268 | else if (logname) | |
269 | die(EXIT_FAILURE, d.buf); | |
270 | if (f & f_syslog) | |
271 | syslog(LOG_ERR, d.buf); | |
272 | dstr_destroy(&d); | |
9dd01bc6 | 273 | } |
9dd01bc6 | 274 | } |
275 | ||
f98df549 | 276 | static void sighup(int sig, void *v) { logfile(logname); } |
5f5150b1 | 277 | |
06b2a088 | 278 | static void cleanup(void) |
279 | { | |
280 | if (pidfile) | |
281 | unlink(pidfile); | |
282 | } | |
283 | ||
284 | static void sigdie(int sig) | |
285 | { | |
286 | cleanup(); | |
287 | signal(sig, SIG_DFL); | |
288 | raise(sig); | |
289 | } | |
290 | ||
410c8acf | 291 | static void version(FILE *fp) |
f98df549 | 292 | { pquis(fp, "$, TrIPE version " VERSION "\n"); } |
410c8acf | 293 | |
294 | static void usage(FILE *fp) | |
295 | { | |
296 | pquis(fp, "\ | |
297 | Usage:\n\ | |
2d752320 | 298 | $ [-w] [-OPTIONS] [COMMAND [ARGS]...]\n\ |
299 | $ [-Dl] [-f FILE] [-OPTIONS]\n\ | |
410c8acf | 300 | Options:\n\ |
2d752320 | 301 | [-s] [-d DIRECTORY] [-a SOCKET] [-P PIDFILE]\n\ |
302 | [-p PROGRAM] [-S ARG,ARG,...]\n\ | |
410c8acf | 303 | "); |
304 | } | |
305 | ||
306 | static void help(FILE *fp) | |
307 | { | |
308 | version(fp); | |
309 | fputc('\n', fp); | |
310 | usage(fp); | |
311 | fputs("\ | |
312 | \n\ | |
313 | Options in full:\n\ | |
314 | \n\ | |
315 | -h, --help Show this help text.\n\ | |
316 | -v, --version Show version number.\n\ | |
317 | -u, --usage Show brief usage message.\n\ | |
318 | \n\ | |
319 | -D, --daemon Become a background task after connecting.\n\ | |
ef4a1ab7 | 320 | -d, --directory=DIR Select current directory [default " CONFIGDIR "].\n\ |
3cdc3f3a | 321 | -a, --admin-socket=FILE Select socket to connect to\n\ |
ef4a1ab7 | 322 | [default " SOCKETDIR "/tripesock].\n\ |
06b2a088 | 323 | -P, --pidfile=FILE Write process-id to FILE.\n\ |
410c8acf | 324 | \n\ |
325 | -s, --spawn Start server rather than connecting.\n\ | |
326 | -p, --spawn-path=PATH Specify path to executable.\n\ | |
327 | -S, --spawn-args=ARGS Specify comma-separated arguments.\n\ | |
328 | \n\ | |
329 | -l, --syslog Log messages to system log.\n\ | |
330 | -f, --logfile=FILE Log messages to FILE.\n\ | |
331 | -w, --warnings Show warnings when running commands.\n\ | |
332 | ", fp); | |
333 | } | |
334 | ||
335 | int main(int argc, char *argv[]) | |
336 | { | |
ef4a1ab7 | 337 | const char *dir = CONFIGDIR; |
338 | const char *sock = SOCKETDIR "/tripesock"; | |
410c8acf | 339 | const char *spawnpath = "tripe"; |
340 | string_v spawnopts = DA_INIT; | |
341 | char *p; | |
06b2a088 | 342 | FILE *pidfp = 0; |
410c8acf | 343 | |
344 | ego(argv[0]); | |
345 | ||
346 | if ((p = getenv("TRIPEDIR")) != 0) | |
347 | dir = p; | |
797cf76b MW |
348 | if ((p = getenv("TRIPESOCK")) != 0) |
349 | sock = p; | |
410c8acf | 350 | |
351 | /* --- Parse the arguments --- */ | |
352 | ||
353 | for (;;) { | |
354 | static const struct option opts[] = { | |
355 | { "help", 0, 0, 'h' }, | |
356 | { "version", 0, 0, 'v' }, | |
357 | { "usage", 0, 0, 'u' }, | |
358 | { "daemon", 0, 0, 'D' }, | |
359 | { "directory", OPTF_ARGREQ, 0, 'd' }, | |
360 | { "admin-socket", OPTF_ARGREQ, 0, 'a' }, | |
361 | { "spawn", 0, 0, 's' }, | |
362 | { "spawn-path", OPTF_ARGREQ, 0, 'p' }, | |
363 | { "spawn-args", OPTF_ARGREQ, 0, 'S' }, | |
364 | { "syslog", 0, 0, 'l' }, | |
365 | { "logfile", OPTF_ARGREQ, 0, 'f' }, | |
366 | { "warnings", 0, 0, 'w' }, | |
06b2a088 | 367 | { "pidfile", OPTF_ARGREQ, 0, 'P' }, |
410c8acf | 368 | { 0, 0, 0, 0 } |
369 | }; | |
370 | ||
06b2a088 | 371 | int i = mdwopt(argc, argv, "+hvuDd:a:sp:S:lwf:nP:", opts, 0, 0, 0); |
410c8acf | 372 | if (i < 0) |
373 | break; | |
374 | switch (i) { | |
375 | case 'h': | |
376 | help(stdout); | |
377 | exit(0); | |
378 | case 'v': | |
379 | version(stdout); | |
380 | exit(0); | |
381 | case 'u': | |
382 | usage(stdout); | |
383 | exit(0); | |
384 | case 'D': | |
385 | f |= f_daemon | f_noinput; | |
386 | break; | |
387 | case 'd': | |
388 | dir = optarg; | |
389 | break; | |
390 | case 'a': | |
391 | sock = optarg; | |
392 | break; | |
393 | case 's': | |
394 | f |= f_spawn; | |
395 | break; | |
396 | case 'p': | |
397 | f |= f_spawn; | |
398 | spawnpath = optarg; | |
399 | break; | |
400 | case 'S': | |
401 | f |= f_spawn | f_spawnopts; | |
402 | for (p = strtok(optarg, ","); p; p = strtok(0, ",")) | |
403 | DA_PUSH(&spawnopts, p); | |
404 | break; | |
405 | case 'l': | |
406 | f |= f_syslog | f_noinput; | |
407 | break; | |
408 | case 'w': | |
409 | f |= f_warn; | |
410 | break; | |
411 | case 'f': | |
9dd01bc6 | 412 | logname = optarg; |
410c8acf | 413 | f |= f_noinput; |
414 | break; | |
06b2a088 | 415 | case 'P': |
416 | pidfile = optarg; | |
417 | break; | |
410c8acf | 418 | default: |
419 | f |= f_bogus; | |
420 | break; | |
421 | } | |
422 | } | |
423 | if ((f & f_bogus) || ((f & f_noinput) && optind < argc)) { | |
424 | usage(stderr); | |
425 | exit(EXIT_FAILURE); | |
426 | } | |
427 | ||
06b2a088 | 428 | /* --- Set various things up --- */ |
429 | ||
430 | if (chdir(dir)) { | |
431 | die(EXIT_FAILURE, "couldn't set `%s' as current directory: %s", | |
432 | dir, strerror(errno)); | |
433 | } | |
434 | if (logname) | |
435 | logfile(logname); | |
436 | if (!pidfile && (f & f_daemon) && ((f & f_syslog) || logname)) | |
437 | pidfile = "tripectl.pid"; | |
438 | if (pidfile && (pidfp = fopen(pidfile, "w")) == 0) { | |
439 | die(EXIT_FAILURE, "couldn't open `%s' for writing: %s", | |
440 | pidfile, strerror(errno)); | |
441 | } | |
442 | signal(SIGINT, sigdie); | |
443 | signal(SIGQUIT, sigdie); | |
444 | signal(SIGTERM, sigdie); | |
445 | atexit(cleanup); | |
446 | ||
410c8acf | 447 | /* --- Connect to the server --- */ |
448 | ||
449 | if (f & f_spawn) { | |
450 | int pfd[2]; | |
451 | pid_t kid; | |
452 | struct sigaction sa; | |
453 | sigset_t newmask, oldmask; | |
454 | ||
455 | sa.sa_handler = reap; | |
456 | sigemptyset(&sa.sa_mask); | |
457 | sa.sa_flags = SA_NOCLDSTOP; | |
458 | #ifdef SA_RESTART | |
459 | sa.sa_flags |= SA_RESTART; | |
460 | #endif | |
461 | sigaction(SIGCHLD, &sa, 0); | |
462 | ||
06b2a088 | 463 | DA_UNSHIFT(&spawnopts, (char *)sock); |
464 | DA_UNSHIFT(&spawnopts, "-a"); | |
465 | DA_UNSHIFT(&spawnopts, "-d."); | |
d071d798 | 466 | DA_UNSHIFT(&spawnopts, (char *)spawnpath); |
410c8acf | 467 | DA_PUSH(&spawnopts, 0); |
468 | if (socketpair(PF_UNIX, SOCK_STREAM, 0, pfd)) | |
469 | die(EXIT_FAILURE, "error from socketpair: %s", strerror(errno)); | |
470 | sigemptyset(&newmask); | |
471 | sigaddset(&newmask, SIGCHLD); | |
472 | sigprocmask(SIG_BLOCK, &newmask, &oldmask); | |
473 | if ((kid = fork()) < 0) | |
474 | die(EXIT_FAILURE, "fork failed: %s", strerror(errno)); | |
475 | if (!kid) { | |
476 | dup2(pfd[1], STDIN_FILENO); | |
477 | dup2(pfd[1], STDOUT_FILENO); | |
478 | close(pfd[1]); | |
479 | close(pfd[0]); | |
9dd01bc6 | 480 | if (logfp) |
481 | fclose(logfp); | |
7ed14135 | 482 | if (pidfp) |
483 | fclose(pidfp); | |
9dd01bc6 | 484 | closelog(); |
06b2a088 | 485 | if (f & f_daemon) |
19dd2531 | 486 | detachtty(); |
410c8acf | 487 | execvp(DA(&spawnopts)[0], DA(&spawnopts)); |
488 | die(127, "couldn't exec `%s': %s", spawnpath, strerror(errno)); | |
489 | } | |
490 | sigprocmask(SIG_SETMASK, &oldmask, 0); | |
491 | fd = pfd[0]; | |
492 | close(pfd[1]); | |
493 | } else { | |
494 | struct sockaddr_un sun; | |
495 | size_t sz = strlen(sock) + 1; | |
06b2a088 | 496 | if (sz > sizeof(sun.sun_path)) |
410c8acf | 497 | die(EXIT_FAILURE, "socket name `%s' too long", sock); |
498 | memset(&sun, 0, sizeof(sun)); | |
499 | sun.sun_family = AF_UNIX; | |
06b2a088 | 500 | memcpy(sun.sun_path, sock, sz); |
501 | sz = sz + offsetof(struct sockaddr_un, sun_path); | |
410c8acf | 502 | if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) |
503 | die(EXIT_FAILURE, "error making socket: %s", strerror(errno)); | |
504 | if (connect(fd, (struct sockaddr *)&sun, sz)) { | |
505 | die(EXIT_FAILURE, "error connecting to `%s': %s", | |
9dd01bc6 | 506 | sun.sun_path, strerror(errno)); |
410c8acf | 507 | } |
508 | } | |
509 | ||
510 | if (f & f_daemon) { | |
19dd2531 | 511 | if (daemonize()) |
410c8acf | 512 | die(EXIT_FAILURE, "error becoming daemon: %s", strerror(errno)); |
513 | } | |
06b2a088 | 514 | if (pidfp) { |
a803add7 | 515 | fprintf(pidfp, "%li\n", (long)getpid()); |
06b2a088 | 516 | fclose(pidfp); |
517 | } | |
3cdc3f3a | 518 | signal(SIGPIPE, SIG_IGN); |
410c8acf | 519 | |
520 | /* --- If we're meant to be interactive, do that --- */ | |
521 | ||
3cdc3f3a | 522 | if (optind == argc) |
523 | setup("WATCH -A+tw"); | |
410c8acf | 524 | if (!(f & f_noinput) && optind == argc) { |
525 | sel_state sel; | |
526 | selbuf bu, bs; | |
527 | ||
528 | sel_init(&sel); | |
529 | selbuf_init(&bu, &sel, STDIN_FILENO, uline, &bu); | |
530 | selbuf_init(&bs, &sel, fd, sline, &bs); | |
531 | for (;;) { | |
5f5150b1 | 532 | if (sel_select(&sel) && errno != EINTR && errno != EAGAIN) |
410c8acf | 533 | die(EXIT_FAILURE, "select failed: %s", strerror(errno)); |
534 | } | |
535 | } | |
536 | ||
537 | /* --- If there's a command, submit it --- */ | |
538 | ||
539 | if (optind < argc) { | |
540 | dstr d = DSTR_INIT; | |
3cdc3f3a | 541 | setup((f & f_warn) ? "WATCH -A+w" : "WATCH -A"); |
0ed0735f MW |
542 | while (optind < argc) |
543 | u_quotify(&d, argv[optind++]); | |
410c8acf | 544 | dstr_putc(&d, '\n'); |
3cdc3f3a | 545 | errno = EIO; |
546 | if (write(fd, d.buf, d.len) != d.len || shutdown(fd, 1)) | |
547 | die(EXIT_FAILURE, "write failed: %s", strerror(errno)); | |
410c8acf | 548 | dstr_destroy(&d); |
549 | f |= f_command; | |
550 | } | |
551 | ||
552 | /* --- Pull everything else out of the box --- */ | |
553 | ||
554 | { | |
5f5150b1 | 555 | sel_state sel; |
556 | selbuf b; | |
557 | sig hup; | |
558 | ||
559 | sel_init(&sel); | |
560 | selbuf_init(&b, &sel, fd, cline, 0); | |
561 | ||
410c8acf | 562 | if (f & f_syslog) |
563 | openlog(QUIS, 0, LOG_DAEMON); | |
9dd01bc6 | 564 | if (logfp) { |
5f5150b1 | 565 | sig_init(&sel); |
566 | sig_add(&hup, SIGHUP, sighup, 0); | |
9dd01bc6 | 567 | } |
410c8acf | 568 | for (;;) { |
5f5150b1 | 569 | if (sel_select(&sel) && errno != EINTR && errno != EAGAIN) |
570 | die(EXIT_FAILURE, "select failed: %s", strerror(errno)); | |
410c8acf | 571 | } |
410c8acf | 572 | } |
573 | ||
574 | return (0); | |
575 | } | |
576 | ||
577 | /*----- That's all, folks -------------------------------------------------*/ |