]>
Commit | Line | Data |
---|---|---|
979e32fa | 1 | #include "cache.h" |
85023577 | 2 | #include "pkt-line.h" |
77cb17e9 | 3 | #include "exec_cmd.h" |
f8ff0c06 | 4 | |
85023577 JH |
5 | #include <syslog.h> |
6 | ||
695dffe2 JS |
7 | #ifndef HOST_NAME_MAX |
8 | #define HOST_NAME_MAX 256 | |
9 | #endif | |
10 | ||
415e7b87 PW |
11 | #ifndef NI_MAXSERV |
12 | #define NI_MAXSERV 32 | |
13 | #endif | |
14 | ||
9048fe1c | 15 | static int log_syslog; |
f8ff0c06 | 16 | static int verbose; |
1955fabf | 17 | static int reuseaddr; |
f8ff0c06 | 18 | |
960deccb | 19 | static const char daemon_usage[] = |
1b1dd23f | 20 | "git daemon [--verbose] [--syslog] [--export-all]\n" |
3bd62c21 SB |
21 | " [--timeout=n] [--init-timeout=n] [--max-connections=n]\n" |
22 | " [--strict-paths] [--base-path=path] [--base-path-relaxed]\n" | |
73a7a656 | 23 | " [--user-path | --user-path=path]\n" |
49ba83fb | 24 | " [--interpolated-path=path]\n" |
678dac6b | 25 | " [--reuseaddr] [--detach] [--pid-file=file]\n" |
d9edcbd6 | 26 | " [--[enable|disable|allow-override|forbid-override]=service]\n" |
dd467629 JL |
27 | " [--inetd | [--listen=host_or_ipaddr] [--port=n]\n" |
28 | " [--user=user [--group=group]]\n" | |
29 | " [directory...]"; | |
4ae95682 PA |
30 | |
31 | /* List of acceptable pathname prefixes */ | |
96f1e58f DR |
32 | static char **ok_paths; |
33 | static int strict_paths; | |
4ae95682 PA |
34 | |
35 | /* If this is set, git-daemon-export-ok is not required */ | |
96f1e58f | 36 | static int export_all_trees; |
f8ff0c06 | 37 | |
b21c31c9 | 38 | /* Take all paths relative to this one if non-NULL */ |
96f1e58f | 39 | static char *base_path; |
49ba83fb | 40 | static char *interpolated_path; |
73a7a656 | 41 | static int base_path_relaxed; |
49ba83fb JL |
42 | |
43 | /* Flag indicating client sent extra args. */ | |
44 | static int saw_extended_args; | |
b21c31c9 | 45 | |
603968d2 JH |
46 | /* If defined, ~user notation is allowed and the string is inserted |
47 | * after ~user/. E.g. a request to git://host/~alice/frotz would | |
48 | * go to /home/alice/pub_git/frotz with --user-path=pub_git. | |
49 | */ | |
96f1e58f | 50 | static const char *user_path; |
603968d2 | 51 | |
960deccb | 52 | /* Timeout, and initial timeout */ |
96f1e58f DR |
53 | static unsigned int timeout; |
54 | static unsigned int init_timeout; | |
f8ff0c06 | 55 | |
9d7ca667 RS |
56 | static char *hostname; |
57 | static char *canon_hostname; | |
58 | static char *ip_address; | |
59 | static char *tcp_port; | |
49ba83fb | 60 | |
9048fe1c | 61 | static void logreport(int priority, const char *err, va_list params) |
f8ff0c06 | 62 | { |
9048fe1c | 63 | if (log_syslog) { |
6a992e9e SB |
64 | char buf[1024]; |
65 | vsnprintf(buf, sizeof(buf), err, params); | |
9048fe1c | 66 | syslog(priority, "%s", buf); |
460c2010 JH |
67 | } else { |
68 | /* | |
69 | * Since stderr is set to linebuffered mode, the | |
6a992e9e SB |
70 | * logging of different processes will not overlap |
71 | */ | |
85e72830 | 72 | fprintf(stderr, "[%"PRIuMAX"] ", (uintmax_t)getpid()); |
6a992e9e SB |
73 | vfprintf(stderr, err, params); |
74 | fputc('\n', stderr); | |
75 | } | |
f8ff0c06 PB |
76 | } |
77 | ||
cdda4745 | 78 | static void logerror(const char *err, ...) |
f8ff0c06 PB |
79 | { |
80 | va_list params; | |
81 | va_start(params, err); | |
9048fe1c | 82 | logreport(LOG_ERR, err, params); |
f8ff0c06 PB |
83 | va_end(params); |
84 | } | |
85 | ||
cdda4745 | 86 | static void loginfo(const char *err, ...) |
f8ff0c06 PB |
87 | { |
88 | va_list params; | |
89 | if (!verbose) | |
90 | return; | |
91 | va_start(params, err); | |
9048fe1c | 92 | logreport(LOG_INFO, err, params); |
f8ff0c06 PB |
93 | va_end(params); |
94 | } | |
a87e8be2 | 95 | |
ad8b4f56 ML |
96 | static void NORETURN daemon_die(const char *err, va_list params) |
97 | { | |
98 | logreport(LOG_ERR, err, params); | |
99 | exit(1); | |
100 | } | |
101 | ||
d79374c7 JH |
102 | static int avoid_alias(char *p) |
103 | { | |
104 | int sl, ndot; | |
105 | ||
a6080a0a | 106 | /* |
d79374c7 JH |
107 | * This resurrects the belts and suspenders paranoia check by HPA |
108 | * done in <435560F7.4080006@zytor.com> thread, now enter_repo() | |
109 | * does not do getcwd() based path canonicalizations. | |
110 | * | |
111 | * sl becomes true immediately after seeing '/' and continues to | |
112 | * be true as long as dots continue after that without intervening | |
113 | * non-dot character. | |
114 | */ | |
115 | if (!p || (*p != '/' && *p != '~')) | |
116 | return -1; | |
117 | sl = 1; ndot = 0; | |
118 | p++; | |
119 | ||
120 | while (1) { | |
121 | char ch = *p++; | |
122 | if (sl) { | |
123 | if (ch == '.') | |
124 | ndot++; | |
125 | else if (ch == '/') { | |
126 | if (ndot < 3) | |
127 | /* reject //, /./ and /../ */ | |
128 | return -1; | |
129 | ndot = 0; | |
130 | } | |
131 | else if (ch == 0) { | |
132 | if (0 < ndot && ndot < 3) | |
133 | /* reject /.$ and /..$ */ | |
134 | return -1; | |
135 | return 0; | |
136 | } | |
137 | else | |
138 | sl = ndot = 0; | |
139 | } | |
140 | else if (ch == 0) | |
141 | return 0; | |
142 | else if (ch == '/') { | |
143 | sl = 1; | |
144 | ndot = 0; | |
145 | } | |
146 | } | |
147 | } | |
148 | ||
a47551c3 | 149 | static char *path_ok(char *directory) |
4ae95682 | 150 | { |
603968d2 | 151 | static char rpath[PATH_MAX]; |
49ba83fb | 152 | static char interp_path[PATH_MAX]; |
d79374c7 | 153 | char *path; |
49ba83fb JL |
154 | char *dir; |
155 | ||
9d7ca667 | 156 | dir = directory; |
d79374c7 JH |
157 | |
158 | if (avoid_alias(dir)) { | |
159 | logerror("'%s': aliased", dir); | |
160 | return NULL; | |
161 | } | |
162 | ||
603968d2 JH |
163 | if (*dir == '~') { |
164 | if (!user_path) { | |
165 | logerror("'%s': User-path not allowed", dir); | |
166 | return NULL; | |
167 | } | |
168 | if (*user_path) { | |
169 | /* Got either "~alice" or "~alice/foo"; | |
170 | * rewrite them to "~alice/%s" or | |
171 | * "~alice/%s/foo". | |
172 | */ | |
173 | int namlen, restlen = strlen(dir); | |
174 | char *slash = strchr(dir, '/'); | |
175 | if (!slash) | |
176 | slash = dir + restlen; | |
177 | namlen = slash - dir; | |
178 | restlen -= namlen; | |
179 | loginfo("userpath <%s>, request <%s>, namlen %d, restlen %d, slash <%s>", user_path, dir, namlen, restlen, slash); | |
180 | snprintf(rpath, PATH_MAX, "%.*s/%s%.*s", | |
181 | namlen, dir, user_path, restlen, slash); | |
182 | dir = rpath; | |
183 | } | |
184 | } | |
49ba83fb | 185 | else if (interpolated_path && saw_extended_args) { |
9d7ca667 RS |
186 | struct strbuf expanded_path = STRBUF_INIT; |
187 | struct strbuf_expand_dict_entry dict[] = { | |
188 | { "H", hostname }, | |
189 | { "CH", canon_hostname }, | |
190 | { "IP", ip_address }, | |
191 | { "P", tcp_port }, | |
192 | { "D", directory }, | |
193 | { "%", "%" }, | |
194 | { NULL } | |
195 | }; | |
196 | ||
49ba83fb JL |
197 | if (*dir != '/') { |
198 | /* Allow only absolute */ | |
199 | logerror("'%s': Non-absolute path denied (interpolated-path active)", dir); | |
200 | return NULL; | |
201 | } | |
202 | ||
9d7ca667 RS |
203 | strbuf_expand(&expanded_path, interpolated_path, |
204 | strbuf_expand_dict_cb, &dict); | |
205 | strlcpy(interp_path, expanded_path.buf, PATH_MAX); | |
206 | strbuf_release(&expanded_path); | |
49ba83fb JL |
207 | loginfo("Interpolated dir '%s'", interp_path); |
208 | ||
209 | dir = interp_path; | |
210 | } | |
603968d2 JH |
211 | else if (base_path) { |
212 | if (*dir != '/') { | |
213 | /* Allow only absolute */ | |
1fda3d55 | 214 | logerror("'%s': Non-absolute path denied (base-path active)", dir); |
b21c31c9 PB |
215 | return NULL; |
216 | } | |
49ba83fb JL |
217 | snprintf(rpath, PATH_MAX, "%s%s", base_path, dir); |
218 | dir = rpath; | |
b21c31c9 PB |
219 | } |
220 | ||
a583971f RS |
221 | path = enter_repo(dir, strict_paths); |
222 | if (!path && base_path && base_path_relaxed) { | |
73a7a656 JA |
223 | /* |
224 | * if we fail and base_path_relaxed is enabled, try without | |
225 | * prefixing the base path | |
226 | */ | |
a583971f RS |
227 | dir = directory; |
228 | path = enter_repo(dir, strict_paths); | |
229 | } | |
3e04c62d | 230 | |
4dbd1352 | 231 | if (!path) { |
05ac6b34 | 232 | logerror("'%s' does not appear to be a git repository", dir); |
4dbd1352 | 233 | return NULL; |
4ae95682 PA |
234 | } |
235 | ||
236 | if ( ok_paths && *ok_paths ) { | |
ce335fe0 | 237 | char **pp; |
4dbd1352 | 238 | int pathlen = strlen(path); |
4ae95682 | 239 | |
ce335fe0 | 240 | /* The validation is done on the paths after enter_repo |
a6080a0a | 241 | * appends optional {.git,.git/.git} and friends, but |
d79374c7 JH |
242 | * it does not use getcwd(). So if your /pub is |
243 | * a symlink to /mnt/pub, you can whitelist /pub and | |
244 | * do not have to say /mnt/pub. | |
245 | * Do not say /pub/. | |
ce335fe0 | 246 | */ |
4ae95682 PA |
247 | for ( pp = ok_paths ; *pp ; pp++ ) { |
248 | int len = strlen(*pp); | |
ce335fe0 JH |
249 | if (len <= pathlen && |
250 | !memcmp(*pp, path, len) && | |
251 | (path[len] == '\0' || | |
252 | (!strict_paths && path[len] == '/'))) | |
253 | return path; | |
4ae95682 | 254 | } |
4dbd1352 AE |
255 | } |
256 | else { | |
257 | /* be backwards compatible */ | |
258 | if (!strict_paths) | |
259 | return path; | |
4ae95682 PA |
260 | } |
261 | ||
4dbd1352 AE |
262 | logerror("'%s': not in whitelist", path); |
263 | return NULL; /* Fallthrough. Deny by default */ | |
4ae95682 | 264 | } |
a87e8be2 | 265 | |
d819e4e6 JH |
266 | typedef int (*daemon_service_fn)(void); |
267 | struct daemon_service { | |
268 | const char *name; | |
269 | const char *config_name; | |
270 | daemon_service_fn fn; | |
271 | int enabled; | |
272 | int overridable; | |
273 | }; | |
274 | ||
275 | static struct daemon_service *service_looking_at; | |
276 | static int service_enabled; | |
277 | ||
ef90d6d4 | 278 | static int git_daemon_config(const char *var, const char *value, void *cb) |
d819e4e6 | 279 | { |
cc44c765 | 280 | if (!prefixcmp(var, "daemon.") && |
d819e4e6 JH |
281 | !strcmp(var + 7, service_looking_at->config_name)) { |
282 | service_enabled = git_config_bool(var, value); | |
283 | return 0; | |
284 | } | |
285 | ||
286 | /* we are not interested in parsing any other configuration here */ | |
287 | return 0; | |
288 | } | |
289 | ||
a47551c3 | 290 | static int run_service(char *dir, struct daemon_service *service) |
a87e8be2 | 291 | { |
4dbd1352 | 292 | const char *path; |
d819e4e6 JH |
293 | int enabled = service->enabled; |
294 | ||
a47551c3 | 295 | loginfo("Request %s for '%s'", service->name, dir); |
4dbd1352 | 296 | |
d819e4e6 JH |
297 | if (!enabled && !service->overridable) { |
298 | logerror("'%s': service not enabled.", service->name); | |
299 | errno = EACCES; | |
300 | return -1; | |
301 | } | |
4ae95682 | 302 | |
a47551c3 | 303 | if (!(path = path_ok(dir))) |
a87e8be2 | 304 | return -1; |
47888f0f | 305 | |
a87e8be2 LT |
306 | /* |
307 | * Security on the cheap. | |
308 | * | |
a935c397 | 309 | * We want a readable HEAD, usable "objects" directory, and |
a87e8be2 LT |
310 | * a "git-daemon-export-ok" flag that says that the other side |
311 | * is ok with us doing this. | |
4dbd1352 AE |
312 | * |
313 | * path_ok() uses enter_repo() and does whitelist checking. | |
314 | * We only need to make sure the repository is exported. | |
a87e8be2 | 315 | */ |
4dbd1352 | 316 | |
3e04c62d | 317 | if (!export_all_trees && access("git-daemon-export-ok", F_OK)) { |
4dbd1352 | 318 | logerror("'%s': repository not exported.", path); |
3e04c62d PA |
319 | errno = EACCES; |
320 | return -1; | |
321 | } | |
322 | ||
d819e4e6 JH |
323 | if (service->overridable) { |
324 | service_looking_at = service; | |
325 | service_enabled = -1; | |
ef90d6d4 | 326 | git_config(git_daemon_config, NULL); |
d819e4e6 JH |
327 | if (0 <= service_enabled) |
328 | enabled = service_enabled; | |
329 | } | |
330 | if (!enabled) { | |
331 | logerror("'%s': service not enabled for '%s'", | |
332 | service->name, path); | |
333 | errno = EACCES; | |
334 | return -1; | |
335 | } | |
336 | ||
02d57da4 LT |
337 | /* |
338 | * We'll ignore SIGTERM from now on, we have a | |
339 | * good client. | |
340 | */ | |
341 | signal(SIGTERM, SIG_IGN); | |
342 | ||
d819e4e6 JH |
343 | return service->fn(); |
344 | } | |
345 | ||
346 | static int upload_pack(void) | |
347 | { | |
348 | /* Timeout as string */ | |
349 | char timeout_buf[64]; | |
350 | ||
960deccb PA |
351 | snprintf(timeout_buf, sizeof timeout_buf, "--timeout=%u", timeout); |
352 | ||
a87e8be2 | 353 | /* git-upload-pack only ever reads stuff, so this is safe */ |
77cb17e9 | 354 | execl_git_cmd("upload-pack", "--strict", timeout_buf, ".", NULL); |
a87e8be2 LT |
355 | return -1; |
356 | } | |
357 | ||
39345a21 FBH |
358 | static int upload_archive(void) |
359 | { | |
360 | execl_git_cmd("upload-archive", ".", NULL); | |
361 | return -1; | |
362 | } | |
363 | ||
4b3b1e1e LT |
364 | static int receive_pack(void) |
365 | { | |
366 | execl_git_cmd("receive-pack", ".", NULL); | |
367 | return -1; | |
368 | } | |
369 | ||
d819e4e6 | 370 | static struct daemon_service daemon_service[] = { |
39345a21 | 371 | { "upload-archive", "uploadarch", upload_archive, 0, 1 }, |
d819e4e6 | 372 | { "upload-pack", "uploadpack", upload_pack, 1, 1 }, |
4b3b1e1e | 373 | { "receive-pack", "receivepack", receive_pack, 0, 1 }, |
d819e4e6 JH |
374 | }; |
375 | ||
f3fa1838 JH |
376 | static void enable_service(const char *name, int ena) |
377 | { | |
d819e4e6 JH |
378 | int i; |
379 | for (i = 0; i < ARRAY_SIZE(daemon_service); i++) { | |
380 | if (!strcmp(daemon_service[i].name, name)) { | |
381 | daemon_service[i].enabled = ena; | |
382 | return; | |
383 | } | |
384 | } | |
385 | die("No such service %s", name); | |
386 | } | |
387 | ||
f3fa1838 JH |
388 | static void make_service_overridable(const char *name, int ena) |
389 | { | |
d819e4e6 JH |
390 | int i; |
391 | for (i = 0; i < ARRAY_SIZE(daemon_service); i++) { | |
392 | if (!strcmp(daemon_service[i].name, name)) { | |
393 | daemon_service[i].overridable = ena; | |
394 | return; | |
395 | } | |
396 | } | |
397 | die("No such service %s", name); | |
398 | } | |
399 | ||
6720e95b RS |
400 | static char *xstrdup_tolower(const char *str) |
401 | { | |
402 | char *p, *dup = xstrdup(str); | |
403 | for (p = dup; *p; p++) | |
404 | *p = tolower(*p); | |
405 | return dup; | |
406 | } | |
407 | ||
eb30aed7 | 408 | /* |
73bb33a9 | 409 | * Read the host as supplied by the client connection. |
eb30aed7 | 410 | */ |
73bb33a9 | 411 | static void parse_host_arg(char *extra_args, int buflen) |
49ba83fb JL |
412 | { |
413 | char *val; | |
414 | int vallen; | |
415 | char *end = extra_args + buflen; | |
416 | ||
73bb33a9 | 417 | if (extra_args < end && *extra_args) { |
49ba83fb JL |
418 | saw_extended_args = 1; |
419 | if (strncasecmp("host=", extra_args, 5) == 0) { | |
420 | val = extra_args + 5; | |
421 | vallen = strlen(val) + 1; | |
422 | if (*val) { | |
eb30aed7 JL |
423 | /* Split <host>:<port> at colon. */ |
424 | char *host = val; | |
425 | char *port = strrchr(host, ':'); | |
dd467629 JL |
426 | if (port) { |
427 | *port = 0; | |
428 | port++; | |
9d7ca667 RS |
429 | free(tcp_port); |
430 | tcp_port = xstrdup(port); | |
dd467629 | 431 | } |
9d7ca667 | 432 | free(hostname); |
6720e95b | 433 | hostname = xstrdup_tolower(host); |
49ba83fb | 434 | } |
eb30aed7 | 435 | |
49ba83fb JL |
436 | /* On to the next one */ |
437 | extra_args = val + vallen; | |
438 | } | |
73bb33a9 SP |
439 | if (extra_args < end && *extra_args) |
440 | die("Invalid request"); | |
49ba83fb | 441 | } |
dd467629 | 442 | |
dd467629 JL |
443 | /* |
444 | * Locate canonical hostname and its IP address. | |
445 | */ | |
6720e95b | 446 | if (hostname) { |
dd467629 | 447 | #ifndef NO_IPV6 |
dd467629 | 448 | struct addrinfo hints; |
3e8a00ae | 449 | struct addrinfo *ai; |
dd467629 JL |
450 | int gai; |
451 | static char addrbuf[HOST_NAME_MAX + 1]; | |
452 | ||
453 | memset(&hints, 0, sizeof(hints)); | |
454 | hints.ai_flags = AI_CANONNAME; | |
455 | ||
3e8a00ae | 456 | gai = getaddrinfo(hostname, 0, &hints, &ai); |
dd467629 | 457 | if (!gai) { |
3e8a00ae BK |
458 | struct sockaddr_in *sin_addr = (void *)ai->ai_addr; |
459 | ||
460 | inet_ntop(AF_INET, &sin_addr->sin_addr, | |
461 | addrbuf, sizeof(addrbuf)); | |
462 | free(ip_address); | |
463 | ip_address = xstrdup(addrbuf); | |
464 | ||
465 | free(canon_hostname); | |
466 | canon_hostname = xstrdup(ai->ai_canonname ? | |
467 | ai->ai_canonname : ip_address); | |
468 | ||
469 | freeaddrinfo(ai); | |
dd467629 | 470 | } |
dd467629 | 471 | #else |
dd467629 JL |
472 | struct hostent *hent; |
473 | struct sockaddr_in sa; | |
474 | char **ap; | |
475 | static char addrbuf[HOST_NAME_MAX + 1]; | |
476 | ||
9d7ca667 | 477 | hent = gethostbyname(hostname); |
dd467629 JL |
478 | |
479 | ap = hent->h_addr_list; | |
480 | memset(&sa, 0, sizeof sa); | |
481 | sa.sin_family = hent->h_addrtype; | |
482 | sa.sin_port = htons(0); | |
483 | memcpy(&sa.sin_addr, *ap, hent->h_length); | |
484 | ||
485 | inet_ntop(hent->h_addrtype, &sa.sin_addr, | |
486 | addrbuf, sizeof(addrbuf)); | |
eb30aed7 | 487 | |
9d7ca667 RS |
488 | free(canon_hostname); |
489 | canon_hostname = xstrdup(hent->h_name); | |
490 | free(ip_address); | |
491 | ip_address = xstrdup(addrbuf); | |
dd467629 | 492 | #endif |
6720e95b | 493 | } |
dd467629 JL |
494 | } |
495 | ||
496 | ||
5b276ee4 | 497 | static int execute(struct sockaddr *addr) |
a87e8be2 | 498 | { |
7d80694a | 499 | static char line[1000]; |
d819e4e6 | 500 | int pktlen, len, i; |
7d80694a | 501 | |
5b276ee4 DW |
502 | if (addr) { |
503 | char addrbuf[256] = ""; | |
504 | int port = -1; | |
505 | ||
506 | if (addr->sa_family == AF_INET) { | |
507 | struct sockaddr_in *sin_addr = (void *) addr; | |
508 | inet_ntop(addr->sa_family, &sin_addr->sin_addr, addrbuf, sizeof(addrbuf)); | |
c67359be | 509 | port = ntohs(sin_addr->sin_port); |
5b276ee4 DW |
510 | #ifndef NO_IPV6 |
511 | } else if (addr && addr->sa_family == AF_INET6) { | |
512 | struct sockaddr_in6 *sin6_addr = (void *) addr; | |
513 | ||
514 | char *buf = addrbuf; | |
515 | *buf++ = '['; *buf = '\0'; /* stpcpy() is cool */ | |
516 | inet_ntop(AF_INET6, &sin6_addr->sin6_addr, buf, sizeof(addrbuf) - 1); | |
517 | strcat(buf, "]"); | |
518 | ||
c67359be | 519 | port = ntohs(sin6_addr->sin6_port); |
5b276ee4 DW |
520 | #endif |
521 | } | |
522 | loginfo("Connection from %s:%d", addrbuf, port); | |
53ffb878 JH |
523 | setenv("REMOTE_ADDR", addrbuf, 1); |
524 | } | |
525 | else { | |
526 | unsetenv("REMOTE_ADDR"); | |
5b276ee4 DW |
527 | } |
528 | ||
960deccb | 529 | alarm(init_timeout ? init_timeout : timeout); |
5ad312be | 530 | pktlen = packet_read_line(0, line, sizeof(line)); |
960deccb | 531 | alarm(0); |
7d80694a | 532 | |
5ad312be JL |
533 | len = strlen(line); |
534 | if (pktlen != len) | |
535 | loginfo("Extended attributes (%d bytes) exist <%.*s>", | |
536 | (int) pktlen - len, | |
537 | (int) pktlen - len, line + len + 1); | |
83543a24 | 538 | if (len && line[len-1] == '\n') { |
7d80694a | 539 | line[--len] = 0; |
83543a24 JH |
540 | pktlen--; |
541 | } | |
7d80694a | 542 | |
9d7ca667 RS |
543 | free(hostname); |
544 | free(canon_hostname); | |
545 | free(ip_address); | |
546 | free(tcp_port); | |
a47551c3 | 547 | hostname = canon_hostname = ip_address = tcp_port = NULL; |
eb30aed7 | 548 | |
d433ed0b | 549 | if (len != pktlen) |
73bb33a9 | 550 | parse_host_arg(line + len + 1, pktlen - len - 1); |
49ba83fb | 551 | |
d819e4e6 JH |
552 | for (i = 0; i < ARRAY_SIZE(daemon_service); i++) { |
553 | struct daemon_service *s = &(daemon_service[i]); | |
554 | int namelen = strlen(s->name); | |
599065a3 | 555 | if (!prefixcmp(line, "git-") && |
d819e4e6 | 556 | !strncmp(s->name, line + 4, namelen) && |
49ba83fb | 557 | line[namelen + 4] == ' ') { |
eb30aed7 JL |
558 | /* |
559 | * Note: The directory here is probably context sensitive, | |
560 | * and might depend on the actual service being performed. | |
561 | */ | |
a47551c3 | 562 | return run_service(line + namelen + 5, s); |
49ba83fb | 563 | } |
d819e4e6 | 564 | } |
a87e8be2 | 565 | |
f8ff0c06 | 566 | logerror("Protocol error: '%s'", line); |
a87e8be2 LT |
567 | return -1; |
568 | } | |
569 | ||
3bd62c21 | 570 | static int max_connections = 32; |
66e631de | 571 | |
3bd62c21 | 572 | static unsigned int live_children; |
66e631de | 573 | |
4d8fa916 | 574 | static struct child { |
3bd62c21 | 575 | struct child *next; |
66e631de | 576 | pid_t pid; |
df076bdb | 577 | struct sockaddr_storage address; |
3bd62c21 | 578 | } *firstborn; |
66e631de | 579 | |
3bd62c21 | 580 | static void add_child(pid_t pid, struct sockaddr *addr, int addrlen) |
66e631de | 581 | { |
460c2010 JH |
582 | struct child *newborn, **cradle; |
583 | ||
584 | /* | |
585 | * This must be xcalloc() -- we'll compare the whole sockaddr_storage | |
586 | * but individual address may be shorter. | |
587 | */ | |
588 | newborn = xcalloc(1, sizeof(*newborn)); | |
589 | live_children++; | |
590 | newborn->pid = pid; | |
591 | memcpy(&newborn->address, addr, addrlen); | |
592 | for (cradle = &firstborn; *cradle; cradle = &(*cradle)->next) | |
593 | if (!memcmp(&(*cradle)->address, &newborn->address, | |
594 | sizeof(newborn->address))) | |
595 | break; | |
596 | newborn->next = *cradle; | |
597 | *cradle = newborn; | |
66e631de LT |
598 | } |
599 | ||
3bd62c21 | 600 | static void remove_child(pid_t pid) |
66e631de | 601 | { |
3bd62c21 | 602 | struct child **cradle, *blanket; |
66e631de | 603 | |
3bd62c21 SB |
604 | for (cradle = &firstborn; (blanket = *cradle); cradle = &blanket->next) |
605 | if (blanket->pid == pid) { | |
606 | *cradle = blanket->next; | |
607 | live_children--; | |
608 | free(blanket); | |
609 | break; | |
610 | } | |
66e631de LT |
611 | } |
612 | ||
613 | /* | |
614 | * This gets called if the number of connections grows | |
615 | * past "max_connections". | |
616 | * | |
3bd62c21 | 617 | * We kill the newest connection from a duplicate IP. |
66e631de | 618 | */ |
3bd62c21 | 619 | static void kill_some_child(void) |
66e631de | 620 | { |
460c2010 | 621 | const struct child *blanket, *next; |
66e631de | 622 | |
460c2010 JH |
623 | if (!(blanket = firstborn)) |
624 | return; | |
695605b5 | 625 | |
460c2010 JH |
626 | for (; (next = blanket->next); blanket = next) |
627 | if (!memcmp(&blanket->address, &next->address, | |
628 | sizeof(next->address))) { | |
629 | kill(blanket->pid, SIGTERM); | |
630 | break; | |
631 | } | |
a5a9126b JS |
632 | } |
633 | ||
3bd62c21 | 634 | static void check_dead_children(void) |
a87e8be2 | 635 | { |
3bd62c21 SB |
636 | int status; |
637 | pid_t pid; | |
02d57da4 | 638 | |
460c2010 | 639 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) { |
3bd62c21 SB |
640 | const char *dead = ""; |
641 | remove_child(pid); | |
460c2010 | 642 | if (!WIFEXITED(status) || (WEXITSTATUS(status) > 0)) |
3bd62c21 | 643 | dead = " (with error)"; |
85e72830 | 644 | loginfo("[%"PRIuMAX"] Disconnected%s", (uintmax_t)pid, dead); |
02d57da4 LT |
645 | } |
646 | } | |
647 | ||
7fa09084 | 648 | static void handle(int incoming, struct sockaddr *addr, int addrlen) |
02d57da4 | 649 | { |
3bd62c21 | 650 | pid_t pid; |
02d57da4 | 651 | |
3bd62c21 SB |
652 | if (max_connections && live_children >= max_connections) { |
653 | kill_some_child(); | |
460c2010 | 654 | sleep(1); /* give it some time to die */ |
3bd62c21 SB |
655 | check_dead_children(); |
656 | if (live_children >= max_connections) { | |
657 | close(incoming); | |
658 | logerror("Too many children, dropping connection"); | |
659 | return; | |
660 | } | |
661 | } | |
02d57da4 | 662 | |
3bd62c21 | 663 | if ((pid = fork())) { |
02d57da4 | 664 | close(incoming); |
3bd62c21 SB |
665 | if (pid < 0) { |
666 | logerror("Couldn't fork %s", strerror(errno)); | |
02d57da4 | 667 | return; |
3bd62c21 | 668 | } |
02d57da4 | 669 | |
3bd62c21 | 670 | add_child(pid, addr, addrlen); |
a87e8be2 LT |
671 | return; |
672 | } | |
673 | ||
674 | dup2(incoming, 0); | |
675 | dup2(incoming, 1); | |
676 | close(incoming); | |
f8ff0c06 | 677 | |
5b276ee4 | 678 | exit(execute(addr)); |
a87e8be2 LT |
679 | } |
680 | ||
eaa94919 LT |
681 | static void child_handler(int signo) |
682 | { | |
460c2010 JH |
683 | /* |
684 | * Otherwise empty handler because systemcalls will get interrupted | |
695605b5 SB |
685 | * upon signal receipt |
686 | * SysV needs the handler to be rearmed | |
687 | */ | |
bd7b371e | 688 | signal(SIGCHLD, child_handler); |
eaa94919 LT |
689 | } |
690 | ||
1955fabf MW |
691 | static int set_reuse_addr(int sockfd) |
692 | { | |
693 | int on = 1; | |
694 | ||
695 | if (!reuseaddr) | |
696 | return 0; | |
697 | return setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, | |
698 | &on, sizeof(on)); | |
699 | } | |
700 | ||
6573faff PA |
701 | #ifndef NO_IPV6 |
702 | ||
dd467629 | 703 | static int socksetup(char *listen_addr, int listen_port, int **socklist_p) |
a87e8be2 | 704 | { |
df076bdb YH |
705 | int socknum = 0, *socklist = NULL; |
706 | int maxfd = -1; | |
df076bdb | 707 | char pbuf[NI_MAXSERV]; |
6573faff PA |
708 | struct addrinfo hints, *ai0, *ai; |
709 | int gai; | |
20276889 | 710 | long flags; |
df076bdb | 711 | |
dd467629 | 712 | sprintf(pbuf, "%d", listen_port); |
df076bdb YH |
713 | memset(&hints, 0, sizeof(hints)); |
714 | hints.ai_family = AF_UNSPEC; | |
715 | hints.ai_socktype = SOCK_STREAM; | |
716 | hints.ai_protocol = IPPROTO_TCP; | |
717 | hints.ai_flags = AI_PASSIVE; | |
718 | ||
dd467629 | 719 | gai = getaddrinfo(listen_addr, pbuf, &hints, &ai0); |
df076bdb | 720 | if (gai) |
d7530708 | 721 | die("getaddrinfo() failed: %s", gai_strerror(gai)); |
df076bdb | 722 | |
df076bdb YH |
723 | for (ai = ai0; ai; ai = ai->ai_next) { |
724 | int sockfd; | |
df076bdb YH |
725 | |
726 | sockfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); | |
727 | if (sockfd < 0) | |
728 | continue; | |
729 | if (sockfd >= FD_SETSIZE) { | |
df0daf8a | 730 | logerror("Socket descriptor too large"); |
df076bdb YH |
731 | close(sockfd); |
732 | continue; | |
733 | } | |
734 | ||
735 | #ifdef IPV6_V6ONLY | |
736 | if (ai->ai_family == AF_INET6) { | |
737 | int on = 1; | |
738 | setsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY, | |
739 | &on, sizeof(on)); | |
740 | /* Note: error is not fatal */ | |
741 | } | |
742 | #endif | |
743 | ||
1955fabf MW |
744 | if (set_reuse_addr(sockfd)) { |
745 | close(sockfd); | |
0032d548 | 746 | continue; |
1955fabf MW |
747 | } |
748 | ||
df076bdb YH |
749 | if (bind(sockfd, ai->ai_addr, ai->ai_addrlen) < 0) { |
750 | close(sockfd); | |
751 | continue; /* not fatal */ | |
752 | } | |
753 | if (listen(sockfd, 5) < 0) { | |
754 | close(sockfd); | |
755 | continue; /* not fatal */ | |
756 | } | |
757 | ||
20276889 AJ |
758 | flags = fcntl(sockfd, F_GETFD, 0); |
759 | if (flags >= 0) | |
760 | fcntl(sockfd, F_SETFD, flags | FD_CLOEXEC); | |
761 | ||
83572c1a | 762 | socklist = xrealloc(socklist, sizeof(int) * (socknum + 1)); |
df076bdb YH |
763 | socklist[socknum++] = sockfd; |
764 | ||
df076bdb YH |
765 | if (maxfd < sockfd) |
766 | maxfd = sockfd; | |
767 | } | |
768 | ||
769 | freeaddrinfo(ai0); | |
770 | ||
6573faff PA |
771 | *socklist_p = socklist; |
772 | return socknum; | |
773 | } | |
774 | ||
775 | #else /* NO_IPV6 */ | |
776 | ||
100690b6 | 777 | static int socksetup(char *listen_addr, int listen_port, int **socklist_p) |
6573faff PA |
778 | { |
779 | struct sockaddr_in sin; | |
780 | int sockfd; | |
20276889 | 781 | long flags; |
6573faff | 782 | |
dd467629 JL |
783 | memset(&sin, 0, sizeof sin); |
784 | sin.sin_family = AF_INET; | |
785 | sin.sin_port = htons(listen_port); | |
786 | ||
787 | if (listen_addr) { | |
788 | /* Well, host better be an IP address here. */ | |
789 | if (inet_pton(AF_INET, listen_addr, &sin.sin_addr.s_addr) <= 0) | |
790 | return 0; | |
791 | } else { | |
792 | sin.sin_addr.s_addr = htonl(INADDR_ANY); | |
793 | } | |
794 | ||
6573faff PA |
795 | sockfd = socket(AF_INET, SOCK_STREAM, 0); |
796 | if (sockfd < 0) | |
797 | return 0; | |
798 | ||
1955fabf MW |
799 | if (set_reuse_addr(sockfd)) { |
800 | close(sockfd); | |
801 | return 0; | |
802 | } | |
803 | ||
6573faff PA |
804 | if ( bind(sockfd, (struct sockaddr *)&sin, sizeof sin) < 0 ) { |
805 | close(sockfd); | |
806 | return 0; | |
807 | } | |
a87e8be2 | 808 | |
f35230fb PS |
809 | if (listen(sockfd, 5) < 0) { |
810 | close(sockfd); | |
811 | return 0; | |
812 | } | |
813 | ||
20276889 AJ |
814 | flags = fcntl(sockfd, F_GETFD, 0); |
815 | if (flags >= 0) | |
816 | fcntl(sockfd, F_SETFD, flags | FD_CLOEXEC); | |
817 | ||
1b4713fb | 818 | *socklist_p = xmalloc(sizeof(int)); |
6573faff | 819 | **socklist_p = sockfd; |
f35230fb | 820 | return 1; |
6573faff PA |
821 | } |
822 | ||
823 | #endif | |
824 | ||
825 | static int service_loop(int socknum, int *socklist) | |
826 | { | |
827 | struct pollfd *pfd; | |
828 | int i; | |
829 | ||
695605b5 | 830 | pfd = xcalloc(socknum, sizeof(struct pollfd)); |
6573faff PA |
831 | |
832 | for (i = 0; i < socknum; i++) { | |
833 | pfd[i].fd = socklist[i]; | |
834 | pfd[i].events = POLLIN; | |
835 | } | |
9220282a PA |
836 | |
837 | signal(SIGCHLD, child_handler); | |
a87e8be2 LT |
838 | |
839 | for (;;) { | |
df076bdb | 840 | int i; |
6573faff | 841 | |
695605b5 SB |
842 | check_dead_children(); |
843 | ||
844 | if (poll(pfd, socknum, -1) < 0) { | |
1eef0b33 | 845 | if (errno != EINTR) { |
df0daf8a | 846 | logerror("Poll failed, resuming: %s", |
1eef0b33 JH |
847 | strerror(errno)); |
848 | sleep(1); | |
849 | } | |
df076bdb YH |
850 | continue; |
851 | } | |
852 | ||
853 | for (i = 0; i < socknum; i++) { | |
6573faff | 854 | if (pfd[i].revents & POLLIN) { |
df076bdb | 855 | struct sockaddr_storage ss; |
7626e49e | 856 | unsigned int sslen = sizeof(ss); |
6573faff | 857 | int incoming = accept(pfd[i].fd, (struct sockaddr *)&ss, &sslen); |
df076bdb YH |
858 | if (incoming < 0) { |
859 | switch (errno) { | |
860 | case EAGAIN: | |
861 | case EINTR: | |
862 | case ECONNABORTED: | |
863 | continue; | |
864 | default: | |
865 | die("accept returned %s", strerror(errno)); | |
866 | } | |
867 | } | |
868 | handle(incoming, (struct sockaddr *)&ss, sslen); | |
a87e8be2 LT |
869 | } |
870 | } | |
a87e8be2 LT |
871 | } |
872 | } | |
873 | ||
258e93a1 ML |
874 | /* if any standard file descriptor is missing open it to /dev/null */ |
875 | static void sanitize_stdfds(void) | |
876 | { | |
877 | int fd = open("/dev/null", O_RDWR, 0); | |
878 | while (fd != -1 && fd < 2) | |
879 | fd = dup(fd); | |
880 | if (fd == -1) | |
881 | die("open /dev/null or dup failed: %s", strerror(errno)); | |
882 | if (fd > 2) | |
883 | close(fd); | |
884 | } | |
885 | ||
a5262768 ML |
886 | static void daemonize(void) |
887 | { | |
888 | switch (fork()) { | |
889 | case 0: | |
890 | break; | |
891 | case -1: | |
892 | die("fork failed: %s", strerror(errno)); | |
893 | default: | |
894 | exit(0); | |
895 | } | |
896 | if (setsid() == -1) | |
897 | die("setsid failed: %s", strerror(errno)); | |
898 | close(0); | |
899 | close(1); | |
900 | close(2); | |
901 | sanitize_stdfds(); | |
902 | } | |
903 | ||
45ed5d7f ML |
904 | static void store_pid(const char *path) |
905 | { | |
906 | FILE *f = fopen(path, "w"); | |
907 | if (!f) | |
908 | die("cannot open pid file %s: %s", path, strerror(errno)); | |
85e72830 | 909 | if (fprintf(f, "%"PRIuMAX"\n", (uintmax_t) getpid()) < 0 || fclose(f) != 0) |
bc4e7d03 | 910 | die("failed to write pid file %s: %s", path, strerror(errno)); |
45ed5d7f ML |
911 | } |
912 | ||
dd467629 | 913 | static int serve(char *listen_addr, int listen_port, struct passwd *pass, gid_t gid) |
6573faff PA |
914 | { |
915 | int socknum, *socklist; | |
4ae22d96 | 916 | |
dd467629 | 917 | socknum = socksetup(listen_addr, listen_port, &socklist); |
6573faff | 918 | if (socknum == 0) |
dd467629 JL |
919 | die("unable to allocate any listen sockets on host %s port %u", |
920 | listen_addr, listen_port); | |
4ae22d96 | 921 | |
678dac6b TS |
922 | if (pass && gid && |
923 | (initgroups(pass->pw_name, gid) || setgid (gid) || | |
924 | setuid(pass->pw_uid))) | |
925 | die("cannot drop privileges"); | |
926 | ||
6573faff | 927 | return service_loop(socknum, socklist); |
4ae22d96 | 928 | } |
6573faff | 929 | |
a87e8be2 LT |
930 | int main(int argc, char **argv) |
931 | { | |
dd467629 JL |
932 | int listen_port = 0; |
933 | char *listen_addr = NULL; | |
e64e1b79 | 934 | int inetd_mode = 0; |
678dac6b | 935 | const char *pid_file = NULL, *user_name = NULL, *group_name = NULL; |
a5262768 | 936 | int detach = 0; |
678dac6b TS |
937 | struct passwd *pass = NULL; |
938 | struct group *group; | |
939 | gid_t gid = 0; | |
a87e8be2 LT |
940 | int i; |
941 | ||
2fb3f6db SP |
942 | git_extract_argv0_path(argv[0]); |
943 | ||
a87e8be2 LT |
944 | for (i = 1; i < argc; i++) { |
945 | char *arg = argv[i]; | |
946 | ||
cc44c765 | 947 | if (!prefixcmp(arg, "--listen=")) { |
6720e95b RS |
948 | listen_addr = xstrdup_tolower(arg + 9); |
949 | continue; | |
dd467629 | 950 | } |
cc44c765 | 951 | if (!prefixcmp(arg, "--port=")) { |
a87e8be2 LT |
952 | char *end; |
953 | unsigned long n; | |
954 | n = strtoul(arg+7, &end, 0); | |
955 | if (arg[7] && !*end) { | |
dd467629 | 956 | listen_port = n; |
a87e8be2 LT |
957 | continue; |
958 | } | |
959 | } | |
e64e1b79 LT |
960 | if (!strcmp(arg, "--inetd")) { |
961 | inetd_mode = 1; | |
a8883288 | 962 | log_syslog = 1; |
e64e1b79 LT |
963 | continue; |
964 | } | |
f8ff0c06 PB |
965 | if (!strcmp(arg, "--verbose")) { |
966 | verbose = 1; | |
967 | continue; | |
968 | } | |
9048fe1c PB |
969 | if (!strcmp(arg, "--syslog")) { |
970 | log_syslog = 1; | |
9048fe1c PB |
971 | continue; |
972 | } | |
4ae95682 PA |
973 | if (!strcmp(arg, "--export-all")) { |
974 | export_all_trees = 1; | |
975 | continue; | |
976 | } | |
cc44c765 | 977 | if (!prefixcmp(arg, "--timeout=")) { |
960deccb | 978 | timeout = atoi(arg+10); |
a8883288 | 979 | continue; |
960deccb | 980 | } |
cc44c765 | 981 | if (!prefixcmp(arg, "--init-timeout=")) { |
960deccb | 982 | init_timeout = atoi(arg+15); |
a8883288 | 983 | continue; |
960deccb | 984 | } |
3bd62c21 SB |
985 | if (!prefixcmp(arg, "--max-connections=")) { |
986 | max_connections = atoi(arg+18); | |
987 | if (max_connections < 0) | |
988 | max_connections = 0; /* unlimited */ | |
989 | continue; | |
990 | } | |
4dbd1352 AE |
991 | if (!strcmp(arg, "--strict-paths")) { |
992 | strict_paths = 1; | |
993 | continue; | |
994 | } | |
cc44c765 | 995 | if (!prefixcmp(arg, "--base-path=")) { |
b21c31c9 PB |
996 | base_path = arg+12; |
997 | continue; | |
998 | } | |
73a7a656 JA |
999 | if (!strcmp(arg, "--base-path-relaxed")) { |
1000 | base_path_relaxed = 1; | |
1001 | continue; | |
1002 | } | |
cc44c765 | 1003 | if (!prefixcmp(arg, "--interpolated-path=")) { |
49ba83fb JL |
1004 | interpolated_path = arg+20; |
1005 | continue; | |
1006 | } | |
1955fabf MW |
1007 | if (!strcmp(arg, "--reuseaddr")) { |
1008 | reuseaddr = 1; | |
1009 | continue; | |
1010 | } | |
603968d2 JH |
1011 | if (!strcmp(arg, "--user-path")) { |
1012 | user_path = ""; | |
1013 | continue; | |
1014 | } | |
cc44c765 | 1015 | if (!prefixcmp(arg, "--user-path=")) { |
603968d2 JH |
1016 | user_path = arg + 12; |
1017 | continue; | |
1018 | } | |
cc44c765 | 1019 | if (!prefixcmp(arg, "--pid-file=")) { |
45ed5d7f ML |
1020 | pid_file = arg + 11; |
1021 | continue; | |
1022 | } | |
a5262768 ML |
1023 | if (!strcmp(arg, "--detach")) { |
1024 | detach = 1; | |
1025 | log_syslog = 1; | |
1026 | continue; | |
1027 | } | |
cc44c765 | 1028 | if (!prefixcmp(arg, "--user=")) { |
678dac6b TS |
1029 | user_name = arg + 7; |
1030 | continue; | |
1031 | } | |
cc44c765 | 1032 | if (!prefixcmp(arg, "--group=")) { |
678dac6b TS |
1033 | group_name = arg + 8; |
1034 | continue; | |
1035 | } | |
cc44c765 | 1036 | if (!prefixcmp(arg, "--enable=")) { |
d819e4e6 JH |
1037 | enable_service(arg + 9, 1); |
1038 | continue; | |
1039 | } | |
cc44c765 | 1040 | if (!prefixcmp(arg, "--disable=")) { |
d819e4e6 JH |
1041 | enable_service(arg + 10, 0); |
1042 | continue; | |
1043 | } | |
cc44c765 | 1044 | if (!prefixcmp(arg, "--allow-override=")) { |
74c0cc21 | 1045 | make_service_overridable(arg + 17, 1); |
d819e4e6 JH |
1046 | continue; |
1047 | } | |
cc44c765 | 1048 | if (!prefixcmp(arg, "--forbid-override=")) { |
74c0cc21 | 1049 | make_service_overridable(arg + 18, 0); |
d819e4e6 JH |
1050 | continue; |
1051 | } | |
4ae95682 PA |
1052 | if (!strcmp(arg, "--")) { |
1053 | ok_paths = &argv[i+1]; | |
1054 | break; | |
1055 | } else if (arg[0] != '-') { | |
1056 | ok_paths = &argv[i]; | |
1057 | break; | |
1058 | } | |
e64e1b79 | 1059 | |
a87e8be2 LT |
1060 | usage(daemon_usage); |
1061 | } | |
1062 | ||
22665bba | 1063 | if (log_syslog) { |
6a992e9e | 1064 | openlog("git-daemon", LOG_PID, LOG_DAEMON); |
22665bba | 1065 | set_die_routine(daemon_die); |
460c2010 | 1066 | } else |
48196afd JH |
1067 | /* avoid splitting a message in the middle */ |
1068 | setvbuf(stderr, NULL, _IOLBF, 0); | |
22665bba | 1069 | |
678dac6b TS |
1070 | if (inetd_mode && (group_name || user_name)) |
1071 | die("--user and --group are incompatible with --inetd"); | |
1072 | ||
dd467629 JL |
1073 | if (inetd_mode && (listen_port || listen_addr)) |
1074 | die("--listen= and --port= are incompatible with --inetd"); | |
1075 | else if (listen_port == 0) | |
1076 | listen_port = DEFAULT_GIT_PORT; | |
1077 | ||
678dac6b TS |
1078 | if (group_name && !user_name) |
1079 | die("--group supplied without --user"); | |
1080 | ||
1081 | if (user_name) { | |
1082 | pass = getpwnam(user_name); | |
1083 | if (!pass) | |
1084 | die("user not found - %s", user_name); | |
1085 | ||
1086 | if (!group_name) | |
1087 | gid = pass->pw_gid; | |
1088 | else { | |
1089 | group = getgrnam(group_name); | |
1090 | if (!group) | |
1091 | die("group not found - %s", group_name); | |
1092 | ||
1093 | gid = group->gr_gid; | |
1094 | } | |
1095 | } | |
1096 | ||
ad8b4f56 ML |
1097 | if (strict_paths && (!ok_paths || !*ok_paths)) |
1098 | die("option --strict-paths requires a whitelist"); | |
1099 | ||
90b4a71c JH |
1100 | if (base_path && !is_directory(base_path)) |
1101 | die("base-path '%s' does not exist or is not a directory", | |
1102 | base_path); | |
20632071 | 1103 | |
7c3693f1 | 1104 | if (inetd_mode) { |
5b276ee4 DW |
1105 | struct sockaddr_storage ss; |
1106 | struct sockaddr *peer = (struct sockaddr *)&ss; | |
1107 | socklen_t slen = sizeof(ss); | |
1108 | ||
c569b1fe RS |
1109 | if (!freopen("/dev/null", "w", stderr)) |
1110 | die("failed to redirect stderr to /dev/null: %s", | |
1111 | strerror(errno)); | |
5b276ee4 DW |
1112 | |
1113 | if (getpeername(0, peer, &slen)) | |
1114 | peer = NULL; | |
1115 | ||
1116 | return execute(peer); | |
7c3693f1 | 1117 | } |
bce8230d | 1118 | |
6a992e9e | 1119 | if (detach) { |
a5262768 | 1120 | daemonize(); |
6a992e9e SB |
1121 | loginfo("Ready to rumble"); |
1122 | } | |
a5262768 ML |
1123 | else |
1124 | sanitize_stdfds(); | |
258e93a1 | 1125 | |
45ed5d7f ML |
1126 | if (pid_file) |
1127 | store_pid(pid_file); | |
1128 | ||
dd467629 | 1129 | return serve(listen_addr, listen_port, pass, gid); |
a87e8be2 | 1130 | } |