]>
Commit | Line | Data |
---|---|---|
731043fd | 1 | #include "git-compat-util.h" |
f7192598 | 2 | #include "cache.h" |
41cb7488 | 3 | #include "pkt-line.h" |
b10d0ec7 | 4 | #include "quote.h" |
6abf5c0c | 5 | #include "refs.h" |
15a1c012 | 6 | #include "run-command.h" |
6b62816c | 7 | #include "remote.h" |
f7192598 | 8 | |
96f1e58f | 9 | static char *server_capabilities; |
211b5f9e | 10 | |
2718ff09 LT |
11 | static int check_ref(const char *name, int len, unsigned int flags) |
12 | { | |
13 | if (!flags) | |
14 | return 1; | |
15 | ||
c41e20b3 | 16 | if (len < 5 || memcmp(name, "refs/", 5)) |
2718ff09 LT |
17 | return 0; |
18 | ||
19 | /* Skip the "refs/" part */ | |
20 | name += 5; | |
21 | len -= 5; | |
22 | ||
23 | /* REF_NORMAL means that we don't want the magic fake tag refs */ | |
24 | if ((flags & REF_NORMAL) && check_ref_format(name) < 0) | |
25 | return 0; | |
26 | ||
27 | /* REF_HEADS means that we want regular branch heads */ | |
28 | if ((flags & REF_HEADS) && !memcmp(name, "heads/", 6)) | |
29 | return 1; | |
30 | ||
31 | /* REF_TAGS means that we want tags */ | |
32 | if ((flags & REF_TAGS) && !memcmp(name, "tags/", 5)) | |
33 | return 1; | |
34 | ||
35 | /* All type bits clear means that we are ok with anything */ | |
36 | return !(flags & ~REF_NORMAL); | |
37 | } | |
38 | ||
4577370e DB |
39 | int check_ref_type(const struct ref *ref, int flags) |
40 | { | |
41 | return check_ref(ref->name, strlen(ref->name), flags); | |
42 | } | |
43 | ||
40c155ff JH |
44 | static void add_extra_have(struct extra_have_objects *extra, unsigned char *sha1) |
45 | { | |
46 | ALLOC_GROW(extra->array, extra->nr + 1, extra->alloc); | |
47 | hashcpy(&(extra->array[extra->nr][0]), sha1); | |
48 | extra->nr++; | |
49 | } | |
50 | ||
d1c133f5 LT |
51 | /* |
52 | * Read all the refs from the other end | |
53 | */ | |
1a7141ff | 54 | struct ref **get_remote_heads(int in, struct ref **list, |
2718ff09 | 55 | int nr_match, char **match, |
40c155ff JH |
56 | unsigned int flags, |
57 | struct extra_have_objects *extra_have) | |
d1c133f5 LT |
58 | { |
59 | *list = NULL; | |
60 | for (;;) { | |
61 | struct ref *ref; | |
62 | unsigned char old_sha1[20]; | |
63 | static char buffer[1000]; | |
64 | char *name; | |
211b5f9e | 65 | int len, name_len; |
d1c133f5 LT |
66 | |
67 | len = packet_read_line(in, buffer, sizeof(buffer)); | |
68 | if (!len) | |
69 | break; | |
70 | if (buffer[len-1] == '\n') | |
71 | buffer[--len] = 0; | |
72 | ||
a8073289 TPW |
73 | if (len > 4 && !prefixcmp(buffer, "ERR ")) |
74 | die("remote error: %s", buffer + 4); | |
75 | ||
d1c133f5 LT |
76 | if (len < 42 || get_sha1_hex(buffer, old_sha1) || buffer[40] != ' ') |
77 | die("protocol error: expected sha/ref, got '%s'", buffer); | |
78 | name = buffer + 41; | |
1a7141ff | 79 | |
211b5f9e JS |
80 | name_len = strlen(name); |
81 | if (len != name_len + 41) { | |
8e0f7003 | 82 | free(server_capabilities); |
9befac47 | 83 | server_capabilities = xstrdup(name + name_len + 1); |
211b5f9e JS |
84 | } |
85 | ||
40c155ff JH |
86 | if (extra_have && |
87 | name_len == 5 && !memcmp(".have", name, 5)) { | |
88 | add_extra_have(extra_have, old_sha1); | |
89 | continue; | |
90 | } | |
91 | ||
2718ff09 | 92 | if (!check_ref(name, name_len, flags)) |
cfee10a7 | 93 | continue; |
d1c133f5 LT |
94 | if (nr_match && !path_match(name, nr_match, match)) |
95 | continue; | |
59c69c0c | 96 | ref = alloc_ref(buffer + 41); |
e702496e | 97 | hashcpy(ref->old_sha1, old_sha1); |
d1c133f5 LT |
98 | *list = ref; |
99 | list = &ref->next; | |
100 | } | |
101 | return list; | |
102 | } | |
103 | ||
211b5f9e JS |
104 | int server_supports(const char *feature) |
105 | { | |
1f5881bb JS |
106 | return server_capabilities && |
107 | strstr(server_capabilities, feature) != NULL; | |
211b5f9e JS |
108 | } |
109 | ||
013e7c7f LT |
110 | int path_match(const char *path, int nr, char **match) |
111 | { | |
112 | int i; | |
113 | int pathlen = strlen(path); | |
114 | ||
115 | for (i = 0; i < nr; i++) { | |
116 | char *s = match[i]; | |
117 | int len = strlen(s); | |
118 | ||
119 | if (!len || len > pathlen) | |
120 | continue; | |
121 | if (memcmp(path + pathlen - len, s, len)) | |
122 | continue; | |
123 | if (pathlen > len && path[pathlen - len - 1] != '/') | |
124 | continue; | |
125 | *s = 0; | |
9546010b | 126 | return (i + 1); |
013e7c7f LT |
127 | } |
128 | return 0; | |
129 | } | |
130 | ||
2386d658 LT |
131 | enum protocol { |
132 | PROTO_LOCAL = 1, | |
133 | PROTO_SSH, | |
134 | PROTO_GIT, | |
135 | }; | |
136 | ||
137 | static enum protocol get_protocol(const char *name) | |
138 | { | |
139 | if (!strcmp(name, "ssh")) | |
140 | return PROTO_SSH; | |
141 | if (!strcmp(name, "git")) | |
142 | return PROTO_GIT; | |
c05186cc LT |
143 | if (!strcmp(name, "git+ssh")) |
144 | return PROTO_SSH; | |
145 | if (!strcmp(name, "ssh+git")) | |
146 | return PROTO_SSH; | |
72a4f4b6 LT |
147 | if (!strcmp(name, "file")) |
148 | return PROTO_LOCAL; | |
2386d658 LT |
149 | die("I don't handle protocol '%s'", name); |
150 | } | |
151 | ||
5ba88448 YH |
152 | #define STR_(s) # s |
153 | #define STR(s) STR_(s) | |
2386d658 | 154 | |
72a534da ML |
155 | static void get_host_and_port(char **host, const char **port) |
156 | { | |
157 | char *colon, *end; | |
158 | ||
159 | if (*host[0] == '[') { | |
160 | end = strchr(*host + 1, ']'); | |
161 | if (end) { | |
162 | *end = 0; | |
163 | end++; | |
164 | (*host)++; | |
165 | } else | |
166 | end = *host; | |
167 | } else | |
168 | end = *host; | |
169 | colon = strchr(end, ':'); | |
170 | ||
171 | if (colon) { | |
172 | *colon = 0; | |
173 | *port = colon + 1; | |
174 | } | |
175 | } | |
176 | ||
49744d63 | 177 | #ifndef NO_IPV6 |
4c505f71 | 178 | |
ba505322 AR |
179 | static const char *ai_name(const struct addrinfo *ai) |
180 | { | |
785a9857 BK |
181 | static char addr[NI_MAXHOST]; |
182 | if (getnameinfo(ai->ai_addr, ai->ai_addrlen, addr, sizeof(addr), NULL, 0, | |
183 | NI_NUMERICHOST) != 0) | |
ba505322 | 184 | strcpy(addr, "(unknown)"); |
785a9857 | 185 | |
ba505322 AR |
186 | return addr; |
187 | } | |
188 | ||
5ad312be JL |
189 | /* |
190 | * Returns a connected socket() fd, or else die()s. | |
191 | */ | |
7841ce79 | 192 | static int git_tcp_connect_sock(char *host, int flags) |
2386d658 | 193 | { |
ac3bc6c1 | 194 | int sockfd = -1, saved_errno = 0; |
554fe20d | 195 | const char *port = STR(DEFAULT_GIT_PORT); |
5ba88448 YH |
196 | struct addrinfo hints, *ai0, *ai; |
197 | int gai; | |
ba505322 | 198 | int cnt = 0; |
5ba88448 | 199 | |
72a534da ML |
200 | get_host_and_port(&host, &port); |
201 | if (!*port) | |
202 | port = "<none>"; | |
5ba88448 YH |
203 | |
204 | memset(&hints, 0, sizeof(hints)); | |
205 | hints.ai_socktype = SOCK_STREAM; | |
206 | hints.ai_protocol = IPPROTO_TCP; | |
207 | ||
7841ce79 MT |
208 | if (flags & CONNECT_VERBOSE) |
209 | fprintf(stderr, "Looking up %s ... ", host); | |
210 | ||
5ba88448 YH |
211 | gai = getaddrinfo(host, port, &hints, &ai); |
212 | if (gai) | |
608d48b2 | 213 | die("Unable to look up %s (port %s) (%s)", host, port, gai_strerror(gai)); |
5ba88448 | 214 | |
7841ce79 MT |
215 | if (flags & CONNECT_VERBOSE) |
216 | fprintf(stderr, "done.\nConnecting to %s (port %s) ... ", host, port); | |
217 | ||
5ba88448 | 218 | for (ai0 = ai; ai; ai = ai->ai_next) { |
5ad312be JL |
219 | sockfd = socket(ai->ai_family, |
220 | ai->ai_socktype, ai->ai_protocol); | |
ac3bc6c1 PB |
221 | if (sockfd < 0) { |
222 | saved_errno = errno; | |
5ba88448 | 223 | continue; |
ac3bc6c1 | 224 | } |
5ba88448 | 225 | if (connect(sockfd, ai->ai_addr, ai->ai_addrlen) < 0) { |
ac3bc6c1 | 226 | saved_errno = errno; |
7cbf2f24 | 227 | fprintf(stderr, "%s[%d: %s]: errno=%s\n", |
ba505322 AR |
228 | host, |
229 | cnt, | |
230 | ai_name(ai), | |
ba505322 | 231 | strerror(saved_errno)); |
5ba88448 YH |
232 | close(sockfd); |
233 | sockfd = -1; | |
234 | continue; | |
2386d658 | 235 | } |
ba505322 AR |
236 | if (flags & CONNECT_VERBOSE) |
237 | fprintf(stderr, "%s ", ai_name(ai)); | |
5ba88448 | 238 | break; |
2386d658 LT |
239 | } |
240 | ||
5ba88448 | 241 | freeaddrinfo(ai0); |
2386d658 | 242 | |
2386d658 | 243 | if (sockfd < 0) |
ac3bc6c1 | 244 | die("unable to connect a socket (%s)", strerror(saved_errno)); |
5ba88448 | 245 | |
7841ce79 MT |
246 | if (flags & CONNECT_VERBOSE) |
247 | fprintf(stderr, "done.\n"); | |
248 | ||
5ad312be | 249 | return sockfd; |
2386d658 LT |
250 | } |
251 | ||
49744d63 | 252 | #else /* NO_IPV6 */ |
4c505f71 | 253 | |
5ad312be JL |
254 | /* |
255 | * Returns a connected socket() fd, or else die()s. | |
256 | */ | |
7841ce79 | 257 | static int git_tcp_connect_sock(char *host, int flags) |
4c505f71 | 258 | { |
ac3bc6c1 | 259 | int sockfd = -1, saved_errno = 0; |
72a534da ML |
260 | const char *port = STR(DEFAULT_GIT_PORT); |
261 | char *ep; | |
4c505f71 PA |
262 | struct hostent *he; |
263 | struct sockaddr_in sa; | |
264 | char **ap; | |
265 | unsigned int nport; | |
ba505322 | 266 | int cnt; |
4c505f71 | 267 | |
72a534da | 268 | get_host_and_port(&host, &port); |
4c505f71 | 269 | |
7841ce79 MT |
270 | if (flags & CONNECT_VERBOSE) |
271 | fprintf(stderr, "Looking up %s ... ", host); | |
272 | ||
4c505f71 PA |
273 | he = gethostbyname(host); |
274 | if (!he) | |
275 | die("Unable to look up %s (%s)", host, hstrerror(h_errno)); | |
276 | nport = strtoul(port, &ep, 10); | |
277 | if ( ep == port || *ep ) { | |
278 | /* Not numeric */ | |
279 | struct servent *se = getservbyname(port,"tcp"); | |
280 | if ( !se ) | |
d7530708 | 281 | die("Unknown port %s", port); |
4c505f71 PA |
282 | nport = se->s_port; |
283 | } | |
284 | ||
7841ce79 MT |
285 | if (flags & CONNECT_VERBOSE) |
286 | fprintf(stderr, "done.\nConnecting to %s (port %s) ... ", host, port); | |
287 | ||
ba505322 | 288 | for (cnt = 0, ap = he->h_addr_list; *ap; ap++, cnt++) { |
4c505f71 | 289 | sockfd = socket(he->h_addrtype, SOCK_STREAM, 0); |
ac3bc6c1 PB |
290 | if (sockfd < 0) { |
291 | saved_errno = errno; | |
4c505f71 | 292 | continue; |
ac3bc6c1 | 293 | } |
4c505f71 PA |
294 | |
295 | memset(&sa, 0, sizeof sa); | |
296 | sa.sin_family = he->h_addrtype; | |
6573faff | 297 | sa.sin_port = htons(nport); |
c6164218 | 298 | memcpy(&sa.sin_addr, *ap, he->h_length); |
4c505f71 PA |
299 | |
300 | if (connect(sockfd, (struct sockaddr *)&sa, sizeof sa) < 0) { | |
ac3bc6c1 | 301 | saved_errno = errno; |
7cbf2f24 | 302 | fprintf(stderr, "%s[%d: %s]: errno=%s\n", |
ba505322 AR |
303 | host, |
304 | cnt, | |
305 | inet_ntoa(*(struct in_addr *)&sa.sin_addr), | |
ba505322 | 306 | strerror(saved_errno)); |
4c505f71 PA |
307 | close(sockfd); |
308 | sockfd = -1; | |
309 | continue; | |
310 | } | |
ba505322 AR |
311 | if (flags & CONNECT_VERBOSE) |
312 | fprintf(stderr, "%s ", | |
313 | inet_ntoa(*(struct in_addr *)&sa.sin_addr)); | |
4c505f71 PA |
314 | break; |
315 | } | |
316 | ||
317 | if (sockfd < 0) | |
ac3bc6c1 | 318 | die("unable to connect a socket (%s)", strerror(saved_errno)); |
4c505f71 | 319 | |
7841ce79 MT |
320 | if (flags & CONNECT_VERBOSE) |
321 | fprintf(stderr, "done.\n"); | |
322 | ||
5ad312be JL |
323 | return sockfd; |
324 | } | |
325 | ||
326 | #endif /* NO_IPV6 */ | |
327 | ||
328 | ||
7841ce79 | 329 | static void git_tcp_connect(int fd[2], char *host, int flags) |
5ad312be | 330 | { |
7841ce79 | 331 | int sockfd = git_tcp_connect_sock(host, flags); |
5ad312be | 332 | |
4c505f71 | 333 | fd[0] = sockfd; |
ec587fde | 334 | fd[1] = dup(sockfd); |
4c505f71 PA |
335 | } |
336 | ||
4c505f71 | 337 | |
96f1e58f | 338 | static char *git_proxy_command; |
f8014776 | 339 | |
ef90d6d4 JS |
340 | static int git_proxy_command_options(const char *var, const char *value, |
341 | void *cb) | |
f8014776 | 342 | { |
e814bc4d | 343 | if (!strcmp(var, "core.gitproxy")) { |
c3df8568 YH |
344 | const char *for_pos; |
345 | int matchlen = -1; | |
346 | int hostlen; | |
15112c95 EFL |
347 | const char *rhost_name = cb; |
348 | int rhost_len = strlen(rhost_name); | |
c3df8568 | 349 | |
e814bc4d | 350 | if (git_proxy_command) |
f8014776 | 351 | return 0; |
c64b9ad0 JH |
352 | if (!value) |
353 | return config_error_nonbool(var); | |
e814bc4d JH |
354 | /* [core] |
355 | * ;# matches www.kernel.org as well | |
356 | * gitproxy = netcatter-1 for kernel.org | |
357 | * gitproxy = netcatter-2 for sample.xz | |
358 | * gitproxy = netcatter-default | |
359 | */ | |
c3df8568 | 360 | for_pos = strstr(value, " for "); |
e814bc4d JH |
361 | if (!for_pos) |
362 | /* matches everybody */ | |
363 | matchlen = strlen(value); | |
364 | else { | |
365 | hostlen = strlen(for_pos + 5); | |
366 | if (rhost_len < hostlen) | |
367 | matchlen = -1; | |
368 | else if (!strncmp(for_pos + 5, | |
369 | rhost_name + rhost_len - hostlen, | |
370 | hostlen) && | |
371 | ((rhost_len == hostlen) || | |
372 | rhost_name[rhost_len - hostlen -1] == '.')) | |
373 | matchlen = for_pos - value; | |
374 | else | |
375 | matchlen = -1; | |
376 | } | |
377 | if (0 <= matchlen) { | |
378 | /* core.gitproxy = none for kernel.org */ | |
a6080a0a | 379 | if (matchlen == 4 && |
e814bc4d JH |
380 | !memcmp(value, "none", 4)) |
381 | matchlen = 0; | |
182af834 | 382 | git_proxy_command = xmemdupz(value, matchlen); |
f8014776 | 383 | } |
e814bc4d | 384 | return 0; |
f8014776 PC |
385 | } |
386 | ||
ef90d6d4 | 387 | return git_default_config(var, value, cb); |
f8014776 PC |
388 | } |
389 | ||
e814bc4d | 390 | static int git_use_proxy(const char *host) |
f8014776 PC |
391 | { |
392 | git_proxy_command = getenv("GIT_PROXY_COMMAND"); | |
15112c95 | 393 | git_config(git_proxy_command_options, (void*)host); |
e814bc4d | 394 | return (git_proxy_command && *git_proxy_command); |
f8014776 PC |
395 | } |
396 | ||
c78963d2 | 397 | static void git_proxy_connect(int fd[2], char *host) |
f8014776 | 398 | { |
554fe20d | 399 | const char *port = STR(DEFAULT_GIT_PORT); |
15a1c012 SP |
400 | const char *argv[4]; |
401 | struct child_process proxy; | |
f8014776 | 402 | |
72a534da | 403 | get_host_and_port(&host, &port); |
f8014776 | 404 | |
15a1c012 SP |
405 | argv[0] = git_proxy_command; |
406 | argv[1] = host; | |
407 | argv[2] = port; | |
408 | argv[3] = NULL; | |
409 | memset(&proxy, 0, sizeof(proxy)); | |
410 | proxy.argv = argv; | |
411 | proxy.in = -1; | |
412 | proxy.out = -1; | |
413 | if (start_command(&proxy)) | |
414 | die("cannot start proxy %s", argv[0]); | |
415 | fd[0] = proxy.out; /* read from proxy stdout */ | |
416 | fd[1] = proxy.in; /* write to proxy stdin */ | |
f8014776 PC |
417 | } |
418 | ||
0f503d77 CC |
419 | #define MAX_CMD_LEN 1024 |
420 | ||
2af202be | 421 | static char *get_port(char *host) |
2e776665 LT |
422 | { |
423 | char *end; | |
424 | char *p = strchr(host, ':'); | |
425 | ||
426 | if (p) { | |
8f148253 RS |
427 | long port = strtol(p + 1, &end, 10); |
428 | if (end != p + 1 && *end == '\0' && 0 <= port && port < 65536) { | |
2e776665 LT |
429 | *p = '\0'; |
430 | return p+1; | |
431 | } | |
432 | } | |
433 | ||
434 | return NULL; | |
435 | } | |
436 | ||
fb32c917 JS |
437 | static struct child_process no_fork; |
438 | ||
f7192598 | 439 | /* |
fb32c917 JS |
440 | * This returns a dummy child_process if the transport protocol does not |
441 | * need fork(2), or a struct child_process object if it does. Once done, | |
442 | * finish the connection with finish_connect() with the value returned from | |
443 | * this function (it is safe to call finish_connect() with NULL to support | |
444 | * the former case). | |
f42a5c4e | 445 | * |
fb32c917 JS |
446 | * If it returns, the connect is successful; it just dies on errors (this |
447 | * will hopefully be changed in a libification effort, to return NULL when | |
448 | * the connection failed). | |
f7192598 | 449 | */ |
4577370e | 450 | struct child_process *git_connect(int fd[2], const char *url_orig, |
98158e9c | 451 | const char *prog, int flags) |
f7192598 | 452 | { |
4577370e | 453 | char *url = xstrdup(url_orig); |
8e76bf3f | 454 | char *host, *path; |
356bece0 YH |
455 | char *end; |
456 | int c; | |
98158e9c | 457 | struct child_process *conn; |
faea9ccb | 458 | enum protocol protocol = PROTO_LOCAL; |
da2a95b2 | 459 | int free_path = 0; |
2e776665 | 460 | char *port = NULL; |
f364cb88 JS |
461 | const char **arg; |
462 | struct strbuf cmd; | |
faea9ccb | 463 | |
f0b7367c JH |
464 | /* Without this we cannot rely on waitpid() to tell |
465 | * what happened to our children. | |
466 | */ | |
467 | signal(SIGCHLD, SIG_DFL); | |
468 | ||
faea9ccb | 469 | host = strstr(url, "://"); |
eeefa7c9 | 470 | if (host) { |
faea9ccb AE |
471 | *host = '\0'; |
472 | protocol = get_protocol(url); | |
473 | host += 3; | |
356bece0 YH |
474 | c = '/'; |
475 | } else { | |
f7192598 | 476 | host = url; |
356bece0 YH |
477 | c = ':'; |
478 | } | |
479 | ||
9aa5053d IL |
480 | /* |
481 | * Don't do destructive transforms with git:// as that | |
9517e6b8 | 482 | * protocol code does '[]' unwrapping of its own. |
9aa5053d | 483 | */ |
356bece0 YH |
484 | if (host[0] == '[') { |
485 | end = strchr(host + 1, ']'); | |
486 | if (end) { | |
9aa5053d IL |
487 | if (protocol != PROTO_GIT) { |
488 | *end = 0; | |
489 | host++; | |
490 | } | |
356bece0 | 491 | end++; |
356bece0 YH |
492 | } else |
493 | end = host; | |
494 | } else | |
495 | end = host; | |
496 | ||
497 | path = strchr(end, c); | |
be501813 | 498 | if (path && !has_dos_drive_prefix(end)) { |
72a4f4b6 | 499 | if (c == ':') { |
faea9ccb | 500 | protocol = PROTO_SSH; |
356bece0 | 501 | *path++ = '\0'; |
72a4f4b6 LT |
502 | } |
503 | } else | |
504 | path = end; | |
2386d658 | 505 | |
faea9ccb AE |
506 | if (!path || !*path) |
507 | die("No path specified. See 'man git-pull' for valid url syntax"); | |
508 | ||
509 | /* | |
510 | * null-terminate hostname and point path to ~ for URL's like this: | |
511 | * ssh://host.xz/~user/repo | |
512 | */ | |
513 | if (protocol != PROTO_LOCAL && host != url) { | |
514 | char *ptr = path; | |
515 | if (path[1] == '~') | |
516 | path++; | |
da2a95b2 | 517 | else { |
9befac47 | 518 | path = xstrdup(ptr); |
da2a95b2 SH |
519 | free_path = 1; |
520 | } | |
faea9ccb AE |
521 | |
522 | *ptr = '\0'; | |
523 | } | |
524 | ||
2e776665 LT |
525 | /* |
526 | * Add support for ssh port: ssh://host.xy:<port>/... | |
527 | */ | |
528 | if (protocol == PROTO_SSH && host != url) | |
529 | port = get_port(host); | |
530 | ||
f8014776 | 531 | if (protocol == PROTO_GIT) { |
5ad312be JL |
532 | /* These underlying connection commands die() if they |
533 | * cannot connect. | |
534 | */ | |
9befac47 | 535 | char *target_host = xstrdup(host); |
e814bc4d | 536 | if (git_use_proxy(host)) |
c78963d2 | 537 | git_proxy_connect(fd, host); |
da2a95b2 | 538 | else |
7841ce79 | 539 | git_tcp_connect(fd, host, flags); |
5ad312be JL |
540 | /* |
541 | * Separate original protocol components prog and path | |
73bb33a9 SP |
542 | * from extended host header with a NUL byte. |
543 | * | |
544 | * Note: Do not add any other headers here! Doing so | |
545 | * will cause older git-daemon servers to crash. | |
5ad312be JL |
546 | */ |
547 | packet_write(fd[1], | |
548 | "%s %s%chost=%s%c", | |
549 | prog, path, 0, | |
550 | target_host, 0); | |
551 | free(target_host); | |
4577370e | 552 | free(url); |
da2a95b2 SH |
553 | if (free_path) |
554 | free(path); | |
fb32c917 | 555 | return &no_fork; |
f8014776 | 556 | } |
2386d658 | 557 | |
98158e9c | 558 | conn = xcalloc(1, sizeof(*conn)); |
2e776665 | 559 | |
f364cb88 JS |
560 | strbuf_init(&cmd, MAX_CMD_LEN); |
561 | strbuf_addstr(&cmd, prog); | |
562 | strbuf_addch(&cmd, ' '); | |
563 | sq_quote_buf(&cmd, path); | |
564 | if (cmd.len >= MAX_CMD_LEN) | |
565 | die("command line too long"); | |
566 | ||
567 | conn->in = conn->out = -1; | |
36ad53ff | 568 | conn->argv = arg = xcalloc(7, sizeof(*arg)); |
f364cb88 JS |
569 | if (protocol == PROTO_SSH) { |
570 | const char *ssh = getenv("GIT_SSH"); | |
36ad53ff | 571 | int putty = ssh && strcasestr(ssh, "plink"); |
f364cb88 JS |
572 | if (!ssh) ssh = "ssh"; |
573 | ||
574 | *arg++ = ssh; | |
36ad53ff EY |
575 | if (putty && !strcasestr(ssh, "tortoiseplink")) |
576 | *arg++ = "-batch"; | |
f364cb88 | 577 | if (port) { |
36ad53ff EY |
578 | /* P is for PuTTY, p is for OpenSSH */ |
579 | *arg++ = putty ? "-P" : "-p"; | |
f364cb88 | 580 | *arg++ = port; |
4852f723 | 581 | } |
f364cb88 JS |
582 | *arg++ = host; |
583 | } | |
584 | else { | |
48a7c1c4 GB |
585 | /* remove repo-local variables from the environment */ |
586 | conn->env = local_repo_env; | |
4cfb2a44 | 587 | conn->use_shell = 1; |
016fb48b | 588 | } |
f364cb88 JS |
589 | *arg++ = cmd.buf; |
590 | *arg = NULL; | |
591 | ||
592 | if (start_command(conn)) | |
593 | die("unable to fork"); | |
594 | ||
595 | fd[0] = conn->out; /* read from child's stdout */ | |
596 | fd[1] = conn->in; /* write to child's stdin */ | |
597 | strbuf_release(&cmd); | |
4577370e | 598 | free(url); |
da2a95b2 SH |
599 | if (free_path) |
600 | free(path); | |
98158e9c | 601 | return conn; |
f7192598 LT |
602 | } |
603 | ||
98158e9c | 604 | int finish_connect(struct child_process *conn) |
f7192598 | 605 | { |
f364cb88 | 606 | int code; |
fb32c917 | 607 | if (!conn || conn == &no_fork) |
f42a5c4e FBH |
608 | return 0; |
609 | ||
f364cb88 JS |
610 | code = finish_command(conn); |
611 | free(conn->argv); | |
98158e9c | 612 | free(conn); |
f364cb88 | 613 | return code; |
f7192598 | 614 | } |