]>
Commit | Line | Data |
---|---|---|
f7192598 | 1 | #include "cache.h" |
41cb7488 | 2 | #include "pkt-line.h" |
b10d0ec7 | 3 | #include "quote.h" |
6abf5c0c | 4 | #include "refs.h" |
f7192598 | 5 | #include <sys/wait.h> |
2386d658 LT |
6 | #include <sys/socket.h> |
7 | #include <netinet/in.h> | |
8 | #include <arpa/inet.h> | |
9 | #include <netdb.h> | |
f7192598 | 10 | |
1f5881bb | 11 | static char *server_capabilities = NULL; |
211b5f9e | 12 | |
d1c133f5 LT |
13 | /* |
14 | * Read all the refs from the other end | |
15 | */ | |
1a7141ff JH |
16 | struct ref **get_remote_heads(int in, struct ref **list, |
17 | int nr_match, char **match, int ignore_funny) | |
d1c133f5 LT |
18 | { |
19 | *list = NULL; | |
20 | for (;;) { | |
21 | struct ref *ref; | |
22 | unsigned char old_sha1[20]; | |
23 | static char buffer[1000]; | |
24 | char *name; | |
211b5f9e | 25 | int len, name_len; |
d1c133f5 LT |
26 | |
27 | len = packet_read_line(in, buffer, sizeof(buffer)); | |
28 | if (!len) | |
29 | break; | |
30 | if (buffer[len-1] == '\n') | |
31 | buffer[--len] = 0; | |
32 | ||
33 | if (len < 42 || get_sha1_hex(buffer, old_sha1) || buffer[40] != ' ') | |
34 | die("protocol error: expected sha/ref, got '%s'", buffer); | |
35 | name = buffer + 41; | |
1a7141ff JH |
36 | |
37 | if (ignore_funny && 45 < len && !memcmp(name, "refs/", 5) && | |
38 | check_ref_format(name + 5)) | |
39 | continue; | |
40 | ||
211b5f9e JS |
41 | name_len = strlen(name); |
42 | if (len != name_len + 41) { | |
43 | if (server_capabilities) | |
44 | free(server_capabilities); | |
45 | server_capabilities = strdup(name + name_len + 1); | |
46 | } | |
47 | ||
d1c133f5 LT |
48 | if (nr_match && !path_match(name, nr_match, match)) |
49 | continue; | |
f88395ac | 50 | ref = xcalloc(1, sizeof(*ref) + len - 40); |
d1c133f5 | 51 | memcpy(ref->old_sha1, old_sha1, 20); |
d1c133f5 | 52 | memcpy(ref->name, buffer + 41, len - 40); |
d1c133f5 LT |
53 | *list = ref; |
54 | list = &ref->next; | |
55 | } | |
56 | return list; | |
57 | } | |
58 | ||
211b5f9e JS |
59 | int server_supports(const char *feature) |
60 | { | |
1f5881bb JS |
61 | return server_capabilities && |
62 | strstr(server_capabilities, feature) != NULL; | |
211b5f9e JS |
63 | } |
64 | ||
41cb7488 LT |
65 | int get_ack(int fd, unsigned char *result_sha1) |
66 | { | |
67 | static char line[1000]; | |
68 | int len = packet_read_line(fd, line, sizeof(line)); | |
69 | ||
70 | if (!len) | |
71 | die("git-fetch-pack: expected ACK/NAK, got EOF"); | |
72 | if (line[len-1] == '\n') | |
73 | line[--len] = 0; | |
74 | if (!strcmp(line, "NAK")) | |
75 | return 0; | |
76 | if (!strncmp(line, "ACK ", 3)) { | |
c4c86f07 JS |
77 | if (!get_sha1_hex(line+4, result_sha1)) { |
78 | if (strstr(line+45, "continue")) | |
79 | return 2; | |
41cb7488 | 80 | return 1; |
c4c86f07 | 81 | } |
41cb7488 LT |
82 | } |
83 | die("git-fetch_pack: expected ACK/NAK, got '%s'", line); | |
84 | } | |
85 | ||
013e7c7f LT |
86 | int path_match(const char *path, int nr, char **match) |
87 | { | |
88 | int i; | |
89 | int pathlen = strlen(path); | |
90 | ||
91 | for (i = 0; i < nr; i++) { | |
92 | char *s = match[i]; | |
93 | int len = strlen(s); | |
94 | ||
95 | if (!len || len > pathlen) | |
96 | continue; | |
97 | if (memcmp(path + pathlen - len, s, len)) | |
98 | continue; | |
99 | if (pathlen > len && path[pathlen - len - 1] != '/') | |
100 | continue; | |
101 | *s = 0; | |
102 | return 1; | |
103 | } | |
104 | return 0; | |
105 | } | |
106 | ||
f88395ac JH |
107 | struct refspec { |
108 | char *src; | |
109 | char *dst; | |
ff27adf3 | 110 | char force; |
f88395ac JH |
111 | }; |
112 | ||
ff27adf3 JH |
113 | /* |
114 | * A:B means fast forward remote B with local A. | |
115 | * +A:B means overwrite remote B with local A. | |
116 | * +A is a shorthand for +A:A. | |
117 | * A is a shorthand for A:A. | |
118 | */ | |
f88395ac JH |
119 | static struct refspec *parse_ref_spec(int nr_refspec, char **refspec) |
120 | { | |
121 | int i; | |
ff27adf3 | 122 | struct refspec *rs = xcalloc(sizeof(*rs), (nr_refspec + 1)); |
f88395ac JH |
123 | for (i = 0; i < nr_refspec; i++) { |
124 | char *sp, *dp, *ep; | |
125 | sp = refspec[i]; | |
ff27adf3 JH |
126 | if (*sp == '+') { |
127 | rs[i].force = 1; | |
128 | sp++; | |
129 | } | |
f88395ac JH |
130 | ep = strchr(sp, ':'); |
131 | if (ep) { | |
132 | dp = ep + 1; | |
133 | *ep = 0; | |
134 | } | |
135 | else | |
136 | dp = sp; | |
137 | rs[i].src = sp; | |
138 | rs[i].dst = dp; | |
139 | } | |
140 | rs[nr_refspec].src = rs[nr_refspec].dst = NULL; | |
141 | return rs; | |
142 | } | |
143 | ||
144 | static int count_refspec_match(const char *pattern, | |
145 | struct ref *refs, | |
146 | struct ref **matched_ref) | |
147 | { | |
148 | int match; | |
149 | int patlen = strlen(pattern); | |
150 | ||
151 | for (match = 0; refs; refs = refs->next) { | |
152 | char *name = refs->name; | |
153 | int namelen = strlen(name); | |
154 | if (namelen < patlen || | |
155 | memcmp(name + namelen - patlen, pattern, patlen)) | |
156 | continue; | |
157 | if (namelen != patlen && name[namelen - patlen - 1] != '/') | |
158 | continue; | |
159 | match++; | |
160 | *matched_ref = refs; | |
161 | } | |
162 | return match; | |
163 | } | |
164 | ||
165 | static void link_dst_tail(struct ref *ref, struct ref ***tail) | |
166 | { | |
167 | **tail = ref; | |
168 | *tail = &ref->next; | |
169 | **tail = NULL; | |
170 | } | |
171 | ||
15e02b37 JH |
172 | static struct ref *try_explicit_object_name(const char *name) |
173 | { | |
174 | unsigned char sha1[20]; | |
175 | struct ref *ref; | |
176 | int len; | |
177 | if (get_sha1(name, sha1)) | |
178 | return NULL; | |
179 | len = strlen(name) + 1; | |
180 | ref = xcalloc(1, sizeof(*ref) + len); | |
181 | memcpy(ref->name, name, len); | |
182 | memcpy(ref->new_sha1, sha1, 20); | |
183 | return ref; | |
184 | } | |
185 | ||
f88395ac JH |
186 | static int match_explicit_refs(struct ref *src, struct ref *dst, |
187 | struct ref ***dst_tail, struct refspec *rs) | |
188 | { | |
189 | int i, errs; | |
190 | for (i = errs = 0; rs[i].src; i++) { | |
191 | struct ref *matched_src, *matched_dst; | |
192 | ||
193 | matched_src = matched_dst = NULL; | |
194 | switch (count_refspec_match(rs[i].src, src, &matched_src)) { | |
195 | case 1: | |
196 | break; | |
197 | case 0: | |
15e02b37 JH |
198 | /* The source could be in the get_sha1() format |
199 | * not a reference name. | |
200 | */ | |
201 | matched_src = try_explicit_object_name(rs[i].src); | |
202 | if (matched_src) | |
203 | break; | |
f88395ac | 204 | errs = 1; |
4ec99bf0 TS |
205 | error("src refspec %s does not match any.", |
206 | rs[i].src); | |
f88395ac JH |
207 | break; |
208 | default: | |
209 | errs = 1; | |
210 | error("src refspec %s matches more than one.", | |
211 | rs[i].src); | |
212 | break; | |
213 | } | |
214 | switch (count_refspec_match(rs[i].dst, dst, &matched_dst)) { | |
215 | case 1: | |
216 | break; | |
217 | case 0: | |
218 | if (!memcmp(rs[i].dst, "refs/", 5)) { | |
219 | int len = strlen(rs[i].dst) + 1; | |
220 | matched_dst = xcalloc(1, sizeof(*dst) + len); | |
221 | memcpy(matched_dst->name, rs[i].dst, len); | |
222 | link_dst_tail(matched_dst, dst_tail); | |
223 | } | |
224 | else if (!strcmp(rs[i].src, rs[i].dst) && | |
225 | matched_src) { | |
226 | /* pushing "master:master" when | |
227 | * remote does not have master yet. | |
228 | */ | |
4fa1604f | 229 | int len = strlen(matched_src->name) + 1; |
f88395ac JH |
230 | matched_dst = xcalloc(1, sizeof(*dst) + len); |
231 | memcpy(matched_dst->name, matched_src->name, | |
232 | len); | |
233 | link_dst_tail(matched_dst, dst_tail); | |
234 | } | |
235 | else { | |
236 | errs = 1; | |
237 | error("dst refspec %s does not match any " | |
238 | "existing ref on the remote and does " | |
239 | "not start with refs/.", rs[i].dst); | |
240 | } | |
241 | break; | |
242 | default: | |
243 | errs = 1; | |
244 | error("dst refspec %s matches more than one.", | |
245 | rs[i].dst); | |
246 | break; | |
247 | } | |
248 | if (errs) | |
249 | continue; | |
f88395ac JH |
250 | if (matched_dst->peer_ref) { |
251 | errs = 1; | |
252 | error("dst ref %s receives from more than one src.", | |
253 | matched_dst->name); | |
254 | } | |
ff27adf3 | 255 | else { |
f88395ac | 256 | matched_dst->peer_ref = matched_src; |
ff27adf3 JH |
257 | matched_dst->force = rs[i].force; |
258 | } | |
f88395ac JH |
259 | } |
260 | return -errs; | |
261 | } | |
262 | ||
263 | static struct ref *find_ref_by_name(struct ref *list, const char *name) | |
264 | { | |
265 | for ( ; list; list = list->next) | |
266 | if (!strcmp(list->name, name)) | |
267 | return list; | |
268 | return NULL; | |
269 | } | |
270 | ||
271 | int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, | |
272 | int nr_refspec, char **refspec, int all) | |
273 | { | |
274 | struct refspec *rs = parse_ref_spec(nr_refspec, refspec); | |
275 | ||
276 | if (nr_refspec) | |
277 | return match_explicit_refs(src, dst, dst_tail, rs); | |
278 | ||
279 | /* pick the remainder */ | |
280 | for ( ; src; src = src->next) { | |
281 | struct ref *dst_peer; | |
282 | if (src->peer_ref) | |
283 | continue; | |
284 | dst_peer = find_ref_by_name(dst, src->name); | |
635d37af | 285 | if ((dst_peer && dst_peer->peer_ref) || (!dst_peer && !all)) |
f88395ac JH |
286 | continue; |
287 | if (!dst_peer) { | |
f88395ac JH |
288 | /* Create a new one and link it */ |
289 | int len = strlen(src->name) + 1; | |
290 | dst_peer = xcalloc(1, sizeof(*dst_peer) + len); | |
291 | memcpy(dst_peer->name, src->name, len); | |
292 | memcpy(dst_peer->new_sha1, src->new_sha1, 20); | |
293 | link_dst_tail(dst_peer, dst_tail); | |
294 | } | |
295 | dst_peer->peer_ref = src; | |
296 | } | |
297 | return 0; | |
298 | } | |
299 | ||
2386d658 LT |
300 | enum protocol { |
301 | PROTO_LOCAL = 1, | |
302 | PROTO_SSH, | |
303 | PROTO_GIT, | |
304 | }; | |
305 | ||
306 | static enum protocol get_protocol(const char *name) | |
307 | { | |
308 | if (!strcmp(name, "ssh")) | |
309 | return PROTO_SSH; | |
310 | if (!strcmp(name, "git")) | |
311 | return PROTO_GIT; | |
c05186cc LT |
312 | if (!strcmp(name, "git+ssh")) |
313 | return PROTO_SSH; | |
314 | if (!strcmp(name, "ssh+git")) | |
315 | return PROTO_SSH; | |
2386d658 LT |
316 | die("I don't handle protocol '%s'", name); |
317 | } | |
318 | ||
5ba88448 YH |
319 | #define STR_(s) # s |
320 | #define STR(s) STR_(s) | |
2386d658 | 321 | |
49744d63 | 322 | #ifndef NO_IPV6 |
4c505f71 | 323 | |
2386d658 LT |
324 | static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path) |
325 | { | |
5ba88448 YH |
326 | int sockfd = -1; |
327 | char *colon, *end; | |
328 | char *port = STR(DEFAULT_GIT_PORT); | |
329 | struct addrinfo hints, *ai0, *ai; | |
330 | int gai; | |
331 | ||
332 | if (host[0] == '[') { | |
333 | end = strchr(host + 1, ']'); | |
334 | if (end) { | |
335 | *end = 0; | |
336 | end++; | |
337 | host++; | |
338 | } else | |
339 | end = host; | |
340 | } else | |
341 | end = host; | |
342 | colon = strchr(end, ':'); | |
343 | ||
ce6f8e7e LT |
344 | if (colon) { |
345 | *colon = 0; | |
5ba88448 | 346 | port = colon + 1; |
ce6f8e7e | 347 | } |
5ba88448 YH |
348 | |
349 | memset(&hints, 0, sizeof(hints)); | |
350 | hints.ai_socktype = SOCK_STREAM; | |
351 | hints.ai_protocol = IPPROTO_TCP; | |
352 | ||
353 | gai = getaddrinfo(host, port, &hints, &ai); | |
354 | if (gai) | |
355 | die("Unable to look up %s (%s)", host, gai_strerror(gai)); | |
356 | ||
357 | for (ai0 = ai; ai; ai = ai->ai_next) { | |
358 | sockfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); | |
359 | if (sockfd < 0) | |
360 | continue; | |
361 | if (connect(sockfd, ai->ai_addr, ai->ai_addrlen) < 0) { | |
362 | close(sockfd); | |
363 | sockfd = -1; | |
364 | continue; | |
2386d658 | 365 | } |
5ba88448 | 366 | break; |
2386d658 LT |
367 | } |
368 | ||
5ba88448 | 369 | freeaddrinfo(ai0); |
2386d658 | 370 | |
2386d658 | 371 | if (sockfd < 0) |
5ba88448 YH |
372 | die("unable to connect a socket (%s)", strerror(errno)); |
373 | ||
2386d658 LT |
374 | fd[0] = sockfd; |
375 | fd[1] = sockfd; | |
376 | packet_write(sockfd, "%s %s\n", prog, path); | |
377 | return 0; | |
378 | } | |
379 | ||
49744d63 | 380 | #else /* NO_IPV6 */ |
4c505f71 PA |
381 | |
382 | static int git_tcp_connect(int fd[2], const char *prog, char *host, char *path) | |
383 | { | |
384 | int sockfd = -1; | |
385 | char *colon, *end; | |
386 | char *port = STR(DEFAULT_GIT_PORT), *ep; | |
387 | struct hostent *he; | |
388 | struct sockaddr_in sa; | |
389 | char **ap; | |
390 | unsigned int nport; | |
391 | ||
392 | if (host[0] == '[') { | |
393 | end = strchr(host + 1, ']'); | |
394 | if (end) { | |
395 | *end = 0; | |
396 | end++; | |
397 | host++; | |
398 | } else | |
399 | end = host; | |
400 | } else | |
401 | end = host; | |
402 | colon = strchr(end, ':'); | |
403 | ||
404 | if (colon) { | |
405 | *colon = 0; | |
406 | port = colon + 1; | |
407 | } | |
408 | ||
409 | ||
410 | he = gethostbyname(host); | |
411 | if (!he) | |
412 | die("Unable to look up %s (%s)", host, hstrerror(h_errno)); | |
413 | nport = strtoul(port, &ep, 10); | |
414 | if ( ep == port || *ep ) { | |
415 | /* Not numeric */ | |
416 | struct servent *se = getservbyname(port,"tcp"); | |
417 | if ( !se ) | |
418 | die("Unknown port %s\n", port); | |
419 | nport = se->s_port; | |
420 | } | |
421 | ||
422 | for (ap = he->h_addr_list; *ap; ap++) { | |
423 | sockfd = socket(he->h_addrtype, SOCK_STREAM, 0); | |
424 | if (sockfd < 0) | |
425 | continue; | |
426 | ||
427 | memset(&sa, 0, sizeof sa); | |
428 | sa.sin_family = he->h_addrtype; | |
6573faff | 429 | sa.sin_port = htons(nport); |
c6164218 | 430 | memcpy(&sa.sin_addr, *ap, he->h_length); |
4c505f71 PA |
431 | |
432 | if (connect(sockfd, (struct sockaddr *)&sa, sizeof sa) < 0) { | |
433 | close(sockfd); | |
434 | sockfd = -1; | |
435 | continue; | |
436 | } | |
437 | break; | |
438 | } | |
439 | ||
440 | if (sockfd < 0) | |
441 | die("unable to connect a socket (%s)", strerror(errno)); | |
442 | ||
443 | fd[0] = sockfd; | |
444 | fd[1] = sockfd; | |
445 | packet_write(sockfd, "%s %s\n", prog, path); | |
446 | return 0; | |
447 | } | |
448 | ||
49744d63 | 449 | #endif /* NO_IPV6 */ |
4c505f71 | 450 | |
f8014776 | 451 | static char *git_proxy_command = NULL; |
e814bc4d JH |
452 | static const char *rhost_name = NULL; |
453 | static int rhost_len; | |
f8014776 PC |
454 | |
455 | static int git_proxy_command_options(const char *var, const char *value) | |
456 | { | |
e814bc4d | 457 | if (!strcmp(var, "core.gitproxy")) { |
c3df8568 YH |
458 | const char *for_pos; |
459 | int matchlen = -1; | |
460 | int hostlen; | |
461 | ||
e814bc4d | 462 | if (git_proxy_command) |
f8014776 | 463 | return 0; |
e814bc4d JH |
464 | /* [core] |
465 | * ;# matches www.kernel.org as well | |
466 | * gitproxy = netcatter-1 for kernel.org | |
467 | * gitproxy = netcatter-2 for sample.xz | |
468 | * gitproxy = netcatter-default | |
469 | */ | |
c3df8568 | 470 | for_pos = strstr(value, " for "); |
e814bc4d JH |
471 | if (!for_pos) |
472 | /* matches everybody */ | |
473 | matchlen = strlen(value); | |
474 | else { | |
475 | hostlen = strlen(for_pos + 5); | |
476 | if (rhost_len < hostlen) | |
477 | matchlen = -1; | |
478 | else if (!strncmp(for_pos + 5, | |
479 | rhost_name + rhost_len - hostlen, | |
480 | hostlen) && | |
481 | ((rhost_len == hostlen) || | |
482 | rhost_name[rhost_len - hostlen -1] == '.')) | |
483 | matchlen = for_pos - value; | |
484 | else | |
485 | matchlen = -1; | |
486 | } | |
487 | if (0 <= matchlen) { | |
488 | /* core.gitproxy = none for kernel.org */ | |
489 | if (matchlen == 4 && | |
490 | !memcmp(value, "none", 4)) | |
491 | matchlen = 0; | |
492 | git_proxy_command = xmalloc(matchlen + 1); | |
493 | memcpy(git_proxy_command, value, matchlen); | |
494 | git_proxy_command[matchlen] = 0; | |
f8014776 | 495 | } |
e814bc4d | 496 | return 0; |
f8014776 PC |
497 | } |
498 | ||
499 | return git_default_config(var, value); | |
500 | } | |
501 | ||
e814bc4d | 502 | static int git_use_proxy(const char *host) |
f8014776 | 503 | { |
e814bc4d JH |
504 | rhost_name = host; |
505 | rhost_len = strlen(host); | |
f8014776 PC |
506 | git_proxy_command = getenv("GIT_PROXY_COMMAND"); |
507 | git_config(git_proxy_command_options); | |
e814bc4d JH |
508 | rhost_name = NULL; |
509 | return (git_proxy_command && *git_proxy_command); | |
f8014776 PC |
510 | } |
511 | ||
512 | static int git_proxy_connect(int fd[2], const char *prog, char *host, char *path) | |
513 | { | |
514 | char *port = STR(DEFAULT_GIT_PORT); | |
515 | char *colon, *end; | |
516 | int pipefd[2][2]; | |
517 | pid_t pid; | |
518 | ||
519 | if (host[0] == '[') { | |
520 | end = strchr(host + 1, ']'); | |
521 | if (end) { | |
522 | *end = 0; | |
523 | end++; | |
524 | host++; | |
525 | } else | |
526 | end = host; | |
527 | } else | |
528 | end = host; | |
529 | colon = strchr(end, ':'); | |
530 | ||
531 | if (colon) { | |
532 | *colon = 0; | |
533 | port = colon + 1; | |
534 | } | |
535 | ||
536 | if (pipe(pipefd[0]) < 0 || pipe(pipefd[1]) < 0) | |
537 | die("unable to create pipe pair for communication"); | |
538 | pid = fork(); | |
539 | if (!pid) { | |
540 | dup2(pipefd[1][0], 0); | |
541 | dup2(pipefd[0][1], 1); | |
542 | close(pipefd[0][0]); | |
543 | close(pipefd[0][1]); | |
544 | close(pipefd[1][0]); | |
545 | close(pipefd[1][1]); | |
546 | execlp(git_proxy_command, git_proxy_command, host, port, NULL); | |
547 | die("exec failed"); | |
548 | } | |
549 | fd[0] = pipefd[0][0]; | |
550 | fd[1] = pipefd[1][1]; | |
551 | close(pipefd[0][1]); | |
552 | close(pipefd[1][0]); | |
553 | packet_write(fd[1], "%s %s\n", prog, path); | |
554 | return pid; | |
555 | } | |
556 | ||
f7192598 LT |
557 | /* |
558 | * Yeah, yeah, fixme. Need to pass in the heads etc. | |
559 | */ | |
560 | int git_connect(int fd[2], char *url, const char *prog) | |
561 | { | |
562 | char command[1024]; | |
faea9ccb AE |
563 | char *host, *path = url; |
564 | char *colon = NULL; | |
f7192598 LT |
565 | int pipefd[2][2]; |
566 | pid_t pid; | |
faea9ccb AE |
567 | enum protocol protocol = PROTO_LOCAL; |
568 | ||
569 | host = strstr(url, "://"); | |
570 | if(host) { | |
571 | *host = '\0'; | |
572 | protocol = get_protocol(url); | |
573 | host += 3; | |
574 | path = strchr(host, '/'); | |
575 | } | |
576 | else { | |
f7192598 | 577 | host = url; |
faea9ccb AE |
578 | if ((colon = strchr(host, ':'))) { |
579 | protocol = PROTO_SSH; | |
580 | *colon = '\0'; | |
581 | path = colon + 1; | |
2386d658 | 582 | } |
f7192598 | 583 | } |
2386d658 | 584 | |
faea9ccb AE |
585 | if (!path || !*path) |
586 | die("No path specified. See 'man git-pull' for valid url syntax"); | |
587 | ||
588 | /* | |
589 | * null-terminate hostname and point path to ~ for URL's like this: | |
590 | * ssh://host.xz/~user/repo | |
591 | */ | |
592 | if (protocol != PROTO_LOCAL && host != url) { | |
593 | char *ptr = path; | |
594 | if (path[1] == '~') | |
595 | path++; | |
596 | else | |
597 | path = strdup(ptr); | |
598 | ||
599 | *ptr = '\0'; | |
600 | } | |
601 | ||
f8014776 | 602 | if (protocol == PROTO_GIT) { |
e814bc4d | 603 | if (git_use_proxy(host)) |
f8014776 | 604 | return git_proxy_connect(fd, prog, host, path); |
2386d658 | 605 | return git_tcp_connect(fd, prog, host, path); |
f8014776 | 606 | } |
2386d658 | 607 | |
f7192598 LT |
608 | if (pipe(pipefd[0]) < 0 || pipe(pipefd[1]) < 0) |
609 | die("unable to create pipe pair for communication"); | |
610 | pid = fork(); | |
611 | if (!pid) { | |
b10d0ec7 JH |
612 | snprintf(command, sizeof(command), "%s %s", prog, |
613 | sq_quote(path)); | |
f7192598 LT |
614 | dup2(pipefd[1][0], 0); |
615 | dup2(pipefd[0][1], 1); | |
616 | close(pipefd[0][0]); | |
617 | close(pipefd[0][1]); | |
618 | close(pipefd[1][0]); | |
619 | close(pipefd[1][1]); | |
4852f723 | 620 | if (protocol == PROTO_SSH) { |
c7c81b3a JR |
621 | const char *ssh, *ssh_basename; |
622 | ssh = getenv("GIT_SSH"); | |
623 | if (!ssh) ssh = "ssh"; | |
624 | ssh_basename = strrchr(ssh, '/'); | |
4852f723 MS |
625 | if (!ssh_basename) |
626 | ssh_basename = ssh; | |
627 | else | |
628 | ssh_basename++; | |
629 | execlp(ssh, ssh_basename, host, command, NULL); | |
630 | } | |
f7192598 LT |
631 | else |
632 | execlp("sh", "sh", "-c", command, NULL); | |
633 | die("exec failed"); | |
634 | } | |
635 | fd[0] = pipefd[0][0]; | |
636 | fd[1] = pipefd[1][1]; | |
637 | close(pipefd[0][1]); | |
638 | close(pipefd[1][0]); | |
639 | return pid; | |
640 | } | |
641 | ||
642 | int finish_connect(pid_t pid) | |
643 | { | |
644 | int ret; | |
645 | ||
646 | for (;;) { | |
647 | ret = waitpid(pid, NULL, 0); | |
648 | if (!ret) | |
649 | break; | |
650 | if (errno != EINTR) | |
651 | break; | |
652 | } | |
653 | return ret; | |
654 | } |