7 #include "run-command.h"
10 #include "argv-array.h"
12 static struct remote
*remote
;
13 static const char *url
; /* always ends with a trailing slash */
18 unsigned progress
: 1,
23 static struct options options
;
25 static int set_option(const char *name
, const char *value
)
27 if (!strcmp(name
, "verbosity")) {
29 int v
= strtol(value
, &end
, 10);
30 if (value
== end
|| *end
)
32 options
.verbosity
= v
;
35 else if (!strcmp(name
, "progress")) {
36 if (!strcmp(value
, "true"))
38 else if (!strcmp(value
, "false"))
44 else if (!strcmp(name
, "depth")) {
46 unsigned long v
= strtoul(value
, &end
, 10);
47 if (value
== end
|| *end
)
52 else if (!strcmp(name
, "followtags")) {
53 if (!strcmp(value
, "true"))
54 options
.followtags
= 1;
55 else if (!strcmp(value
, "false"))
56 options
.followtags
= 0;
61 else if (!strcmp(name
, "dry-run")) {
62 if (!strcmp(value
, "true"))
64 else if (!strcmp(value
, "false"))
71 return 1 /* unsupported */;
81 unsigned proto_git
: 1;
83 static struct discovery
*last_discovery
;
85 static struct ref
*parse_git_refs(struct discovery
*heads
, int for_push
)
87 struct ref
*list
= NULL
;
88 get_remote_heads(-1, heads
->buf
, heads
->len
, &list
,
89 for_push
? REF_NORMAL
: 0, NULL
);
93 static struct ref
*parse_info_refs(struct discovery
*heads
)
95 char *data
, *start
, *mid
;
99 struct ref
*refs
= NULL
;
100 struct ref
*ref
= NULL
;
101 struct ref
*last_ref
= NULL
;
106 while (i
< heads
->len
) {
112 if (data
[i
] == '\n') {
113 if (mid
- start
!= 40)
114 die("%sinfo/refs not valid: is this a git repository?", url
);
117 ref
= xmalloc(sizeof(struct ref
) +
118 strlen(ref_name
) + 1);
119 memset(ref
, 0, sizeof(struct ref
));
120 strcpy(ref
->name
, ref_name
);
121 get_sha1_hex(start
, ref
->old_sha1
);
125 last_ref
->next
= ref
;
132 ref
= alloc_ref("HEAD");
133 if (!http_fetch_ref(url
, ref
) &&
134 !resolve_remote_symref(ref
, refs
)) {
144 static void free_discovery(struct discovery
*d
)
147 if (d
== last_discovery
)
148 last_discovery
= NULL
;
155 static int show_http_message(struct strbuf
*type
, struct strbuf
*msg
)
160 * We only show text/plain parts, as other types are likely
161 * to be ugly to look at on the user's terminal.
163 * TODO should handle "; charset=XXX", and re-encode into
166 if (strcasecmp(type
->buf
, "text/plain"))
175 eol
= strchrnul(p
, '\n');
176 fprintf(stderr
, "remote: %.*s\n", (int)(eol
- p
), p
);
182 static struct discovery
* discover_refs(const char *service
, int for_push
)
184 struct strbuf exp
= STRBUF_INIT
;
185 struct strbuf type
= STRBUF_INIT
;
186 struct strbuf buffer
= STRBUF_INIT
;
187 struct discovery
*last
= last_discovery
;
189 int http_ret
, maybe_smart
= 0;
190 struct http_get_options options
;
192 if (last
&& !strcmp(service
, last
->service
))
194 free_discovery(last
);
196 strbuf_addf(&buffer
, "%sinfo/refs", url
);
197 if ((!prefixcmp(url
, "http://") || !prefixcmp(url
, "https://")) &&
198 git_env_bool("GIT_SMART_HTTP", 1)) {
200 if (!strchr(url
, '?'))
201 strbuf_addch(&buffer
, '?');
203 strbuf_addch(&buffer
, '&');
204 strbuf_addf(&buffer
, "service=%s", service
);
206 refs_url
= strbuf_detach(&buffer
, NULL
);
208 memset(&options
, 0, sizeof(options
));
209 options
.content_type
= &type
;
210 options
.no_cache
= 1;
211 options
.keep_error
= 1;
213 http_ret
= http_get_strbuf(refs_url
, &buffer
, &options
);
217 case HTTP_MISSING_TARGET
:
218 show_http_message(&type
, &buffer
);
219 die("repository '%s' not found", url
);
221 show_http_message(&type
, &buffer
);
222 die("Authentication failed for '%s'", url
);
224 show_http_message(&type
, &buffer
);
225 die("unable to access '%s': %s", url
, curl_errorstr
);
228 last
= xcalloc(1, sizeof(*last_discovery
));
229 last
->service
= service
;
230 last
->buf_alloc
= strbuf_detach(&buffer
, &last
->len
);
231 last
->buf
= last
->buf_alloc
;
233 strbuf_addf(&exp
, "application/x-%s-advertisement", service
);
235 (5 <= last
->len
&& last
->buf
[4] == '#') &&
236 !strbuf_cmp(&exp
, &type
)) {
240 * smart HTTP response; validate that the service
241 * pkt-line matches our request.
243 line
= packet_read_line_buf(&last
->buf
, &last
->len
, NULL
);
246 strbuf_addf(&exp
, "# service=%s", service
);
247 if (strcmp(line
, exp
.buf
))
248 die("invalid server response; got '%s'", line
);
249 strbuf_release(&exp
);
251 /* The header can include additional metadata lines, up
252 * until a packet flush marker. Ignore these now, but
253 * in the future we might start to scan them.
255 while (packet_read_line_buf(&last
->buf
, &last
->len
, NULL
))
262 last
->refs
= parse_git_refs(last
, for_push
);
264 last
->refs
= parse_info_refs(last
);
267 strbuf_release(&exp
);
268 strbuf_release(&type
);
269 strbuf_release(&buffer
);
270 last_discovery
= last
;
274 static struct ref
*get_refs(int for_push
)
276 struct discovery
*heads
;
279 heads
= discover_refs("git-receive-pack", for_push
);
281 heads
= discover_refs("git-upload-pack", for_push
);
286 static void output_refs(struct ref
*refs
)
289 for (posn
= refs
; posn
; posn
= posn
->next
) {
291 printf("@%s %s\n", posn
->symref
, posn
->name
);
293 printf("%s %s\n", sha1_to_hex(posn
->old_sha1
), posn
->name
);
300 const char *service_name
;
302 struct strbuf
*stdin_preamble
;
304 char *hdr_content_type
;
312 struct strbuf result
;
313 unsigned gzip_request
: 1;
314 unsigned initial_buffer
: 1;
317 static size_t rpc_out(void *ptr
, size_t eltsize
,
318 size_t nmemb
, void *buffer_
)
320 size_t max
= eltsize
* nmemb
;
321 struct rpc_state
*rpc
= buffer_
;
322 size_t avail
= rpc
->len
- rpc
->pos
;
325 rpc
->initial_buffer
= 0;
326 avail
= packet_read(rpc
->out
, NULL
, NULL
, rpc
->buf
, rpc
->alloc
, 0);
335 memcpy(ptr
, rpc
->buf
+ rpc
->pos
, avail
);
340 #ifndef NO_CURL_IOCTL
341 static curlioerr
rpc_ioctl(CURL
*handle
, int cmd
, void *clientp
)
343 struct rpc_state
*rpc
= clientp
;
349 case CURLIOCMD_RESTARTREAD
:
350 if (rpc
->initial_buffer
) {
354 fprintf(stderr
, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
355 return CURLIOE_FAILRESTART
;
358 return CURLIOE_UNKNOWNCMD
;
363 static size_t rpc_in(char *ptr
, size_t eltsize
,
364 size_t nmemb
, void *buffer_
)
366 size_t size
= eltsize
* nmemb
;
367 struct rpc_state
*rpc
= buffer_
;
368 write_or_die(rpc
->in
, ptr
, size
);
372 static int run_slot(struct active_request_slot
*slot
)
375 struct slot_results results
;
377 slot
->results
= &results
;
378 slot
->curl_result
= curl_easy_perform(slot
->curl
);
379 finish_active_slot(slot
);
381 err
= handle_curl_result(&results
);
382 if (err
!= HTTP_OK
&& err
!= HTTP_REAUTH
) {
383 error("RPC failed; result=%d, HTTP code = %ld",
384 results
.curl_result
, results
.http_code
);
390 static int probe_rpc(struct rpc_state
*rpc
)
392 struct active_request_slot
*slot
;
393 struct curl_slist
*headers
= NULL
;
394 struct strbuf buf
= STRBUF_INIT
;
397 slot
= get_active_slot();
399 headers
= curl_slist_append(headers
, rpc
->hdr_content_type
);
400 headers
= curl_slist_append(headers
, rpc
->hdr_accept
);
402 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
403 curl_easy_setopt(slot
->curl
, CURLOPT_POST
, 1);
404 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, rpc
->service_url
);
405 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, NULL
);
406 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, "0000");
407 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, 4);
408 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
409 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_buffer
);
410 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, &buf
);
412 err
= run_slot(slot
);
414 curl_slist_free_all(headers
);
415 strbuf_release(&buf
);
419 static int post_rpc(struct rpc_state
*rpc
)
421 struct active_request_slot
*slot
;
422 struct curl_slist
*headers
= NULL
;
423 int use_gzip
= rpc
->gzip_request
;
424 char *gzip_body
= NULL
;
425 size_t gzip_size
= 0;
426 int err
, large_request
= 0;
428 /* Try to load the entire request, if we can fit it into the
429 * allocated buffer space we can use HTTP/1.0 and avoid the
430 * chunked encoding mess.
433 size_t left
= rpc
->alloc
- rpc
->len
;
434 char *buf
= rpc
->buf
+ rpc
->len
;
437 if (left
< LARGE_PACKET_MAX
) {
443 n
= packet_read(rpc
->out
, NULL
, NULL
, buf
, left
, 0);
451 err
= probe_rpc(rpc
);
452 } while (err
== HTTP_REAUTH
);
457 headers
= curl_slist_append(headers
, rpc
->hdr_content_type
);
458 headers
= curl_slist_append(headers
, rpc
->hdr_accept
);
459 headers
= curl_slist_append(headers
, "Expect:");
462 slot
= get_active_slot();
464 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
465 curl_easy_setopt(slot
->curl
, CURLOPT_POST
, 1);
466 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, rpc
->service_url
);
467 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "gzip");
470 /* The request body is large and the size cannot be predicted.
471 * We must use chunked encoding to send it.
473 headers
= curl_slist_append(headers
, "Transfer-Encoding: chunked");
474 rpc
->initial_buffer
= 1;
475 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, rpc_out
);
476 curl_easy_setopt(slot
->curl
, CURLOPT_INFILE
, rpc
);
477 #ifndef NO_CURL_IOCTL
478 curl_easy_setopt(slot
->curl
, CURLOPT_IOCTLFUNCTION
, rpc_ioctl
);
479 curl_easy_setopt(slot
->curl
, CURLOPT_IOCTLDATA
, rpc
);
481 if (options
.verbosity
> 1) {
482 fprintf(stderr
, "POST %s (chunked)\n", rpc
->service_name
);
486 } else if (gzip_body
) {
488 * If we are looping to retry authentication, then the previous
489 * run will have set up the headers and gzip buffer already,
490 * and we just need to send it.
492 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, gzip_body
);
493 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, gzip_size
);
495 } else if (use_gzip
&& 1024 < rpc
->len
) {
496 /* The client backend isn't giving us compressed data so
497 * we can try to deflate it ourselves, this may save on.
503 memset(&stream
, 0, sizeof(stream
));
504 git_deflate_init_gzip(&stream
, Z_BEST_COMPRESSION
);
505 gzip_size
= git_deflate_bound(&stream
, rpc
->len
);
506 gzip_body
= xmalloc(gzip_size
);
508 stream
.next_in
= (unsigned char *)rpc
->buf
;
509 stream
.avail_in
= rpc
->len
;
510 stream
.next_out
= (unsigned char *)gzip_body
;
511 stream
.avail_out
= gzip_size
;
513 ret
= git_deflate(&stream
, Z_FINISH
);
514 if (ret
!= Z_STREAM_END
)
515 die("cannot deflate request; zlib deflate error %d", ret
);
517 ret
= git_deflate_end_gently(&stream
);
519 die("cannot deflate request; zlib end error %d", ret
);
521 gzip_size
= stream
.total_out
;
523 headers
= curl_slist_append(headers
, "Content-Encoding: gzip");
524 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, gzip_body
);
525 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, gzip_size
);
527 if (options
.verbosity
> 1) {
528 fprintf(stderr
, "POST %s (gzip %lu to %lu bytes)\n",
530 (unsigned long)rpc
->len
, (unsigned long)gzip_size
);
534 /* We know the complete request size in advance, use the
535 * more normal Content-Length approach.
537 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, rpc
->buf
);
538 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, rpc
->len
);
539 if (options
.verbosity
> 1) {
540 fprintf(stderr
, "POST %s (%lu bytes)\n",
541 rpc
->service_name
, (unsigned long)rpc
->len
);
546 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
547 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, rpc_in
);
548 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, rpc
);
550 err
= run_slot(slot
);
551 if (err
== HTTP_REAUTH
&& !large_request
)
556 curl_slist_free_all(headers
);
561 static int rpc_service(struct rpc_state
*rpc
, struct discovery
*heads
)
563 const char *svc
= rpc
->service_name
;
564 struct strbuf buf
= STRBUF_INIT
;
565 struct strbuf
*preamble
= rpc
->stdin_preamble
;
566 struct child_process client
;
569 memset(&client
, 0, sizeof(client
));
573 client
.argv
= rpc
->argv
;
574 if (start_command(&client
))
577 write_or_die(client
.in
, preamble
->buf
, preamble
->len
);
579 write_or_die(client
.in
, heads
->buf
, heads
->len
);
581 rpc
->alloc
= http_post_buffer
;
582 rpc
->buf
= xmalloc(rpc
->alloc
);
584 rpc
->out
= client
.out
;
585 strbuf_init(&rpc
->result
, 0);
587 strbuf_addf(&buf
, "%s%s", url
, svc
);
588 rpc
->service_url
= strbuf_detach(&buf
, NULL
);
590 strbuf_addf(&buf
, "Content-Type: application/x-%s-request", svc
);
591 rpc
->hdr_content_type
= strbuf_detach(&buf
, NULL
);
593 strbuf_addf(&buf
, "Accept: application/x-%s-result", svc
);
594 rpc
->hdr_accept
= strbuf_detach(&buf
, NULL
);
597 int n
= packet_read(rpc
->out
, NULL
, NULL
, rpc
->buf
, rpc
->alloc
, 0);
602 err
|= post_rpc(rpc
);
608 strbuf_read(&rpc
->result
, client
.out
, 0);
612 if (xread(client
.out
, buf
, sizeof(buf
)) <= 0)
619 err
|= finish_command(&client
);
620 free(rpc
->service_url
);
621 free(rpc
->hdr_content_type
);
622 free(rpc
->hdr_accept
);
624 strbuf_release(&buf
);
628 static int fetch_dumb(int nr_heads
, struct ref
**to_fetch
)
630 struct walker
*walker
;
631 char **targets
= xmalloc(nr_heads
* sizeof(char*));
635 die("dumb http transport does not support --depth");
636 for (i
= 0; i
< nr_heads
; i
++)
637 targets
[i
] = xstrdup(sha1_to_hex(to_fetch
[i
]->old_sha1
));
639 walker
= get_http_walker(url
);
641 walker
->get_tree
= 1;
642 walker
->get_history
= 1;
643 walker
->get_verbosely
= options
.verbosity
>= 3;
644 walker
->get_recover
= 0;
645 ret
= walker_fetch(walker
, nr_heads
, targets
, NULL
, NULL
);
648 for (i
= 0; i
< nr_heads
; i
++)
652 return ret
? error("Fetch failed.") : 0;
655 static int fetch_git(struct discovery
*heads
,
656 int nr_heads
, struct ref
**to_fetch
)
658 struct rpc_state rpc
;
659 struct strbuf preamble
= STRBUF_INIT
;
660 char *depth_arg
= NULL
;
661 int argc
= 0, i
, err
;
662 const char *argv
[15];
664 argv
[argc
++] = "fetch-pack";
665 argv
[argc
++] = "--stateless-rpc";
666 argv
[argc
++] = "--stdin";
667 argv
[argc
++] = "--lock-pack";
668 if (options
.followtags
)
669 argv
[argc
++] = "--include-tag";
671 argv
[argc
++] = "--thin";
672 if (options
.verbosity
>= 3) {
676 if (!options
.progress
)
677 argv
[argc
++] = "--no-progress";
679 struct strbuf buf
= STRBUF_INIT
;
680 strbuf_addf(&buf
, "--depth=%lu", options
.depth
);
681 depth_arg
= strbuf_detach(&buf
, NULL
);
682 argv
[argc
++] = depth_arg
;
687 for (i
= 0; i
< nr_heads
; i
++) {
688 struct ref
*ref
= to_fetch
[i
];
689 if (!ref
->name
|| !*ref
->name
)
690 die("cannot fetch by sha1 over smart http");
691 packet_buf_write(&preamble
, "%s\n", ref
->name
);
693 packet_buf_flush(&preamble
);
695 memset(&rpc
, 0, sizeof(rpc
));
696 rpc
.service_name
= "git-upload-pack",
698 rpc
.stdin_preamble
= &preamble
;
699 rpc
.gzip_request
= 1;
701 err
= rpc_service(&rpc
, heads
);
703 write_or_die(1, rpc
.result
.buf
, rpc
.result
.len
);
704 strbuf_release(&rpc
.result
);
705 strbuf_release(&preamble
);
710 static int fetch(int nr_heads
, struct ref
**to_fetch
)
712 struct discovery
*d
= discover_refs("git-upload-pack", 0);
714 return fetch_git(d
, nr_heads
, to_fetch
);
716 return fetch_dumb(nr_heads
, to_fetch
);
719 static void parse_fetch(struct strbuf
*buf
)
721 struct ref
**to_fetch
= NULL
;
722 struct ref
*list_head
= NULL
;
723 struct ref
**list
= &list_head
;
724 int alloc_heads
= 0, nr_heads
= 0;
727 if (!prefixcmp(buf
->buf
, "fetch ")) {
728 char *p
= buf
->buf
+ strlen("fetch ");
731 unsigned char old_sha1
[20];
733 if (strlen(p
) < 40 || get_sha1_hex(p
, old_sha1
))
734 die("protocol error: expected sha/ref, got %s'", p
);
740 die("protocol error: expected sha/ref, got %s'", p
);
742 ref
= alloc_ref(name
);
743 hashcpy(ref
->old_sha1
, old_sha1
);
748 ALLOC_GROW(to_fetch
, nr_heads
+ 1, alloc_heads
);
749 to_fetch
[nr_heads
++] = ref
;
752 die("http transport does not support %s", buf
->buf
);
755 if (strbuf_getline(buf
, stdin
, '\n') == EOF
)
761 if (fetch(nr_heads
, to_fetch
))
762 exit(128); /* error already reported */
763 free_refs(list_head
);
771 static int push_dav(int nr_spec
, char **specs
)
773 const char **argv
= xmalloc((10 + nr_spec
) * sizeof(char*));
776 argv
[argc
++] = "http-push";
777 argv
[argc
++] = "--helper-status";
779 argv
[argc
++] = "--dry-run";
780 if (options
.verbosity
> 1)
781 argv
[argc
++] = "--verbose";
783 for (i
= 0; i
< nr_spec
; i
++)
784 argv
[argc
++] = specs
[i
];
787 if (run_command_v_opt(argv
, RUN_GIT_CMD
))
788 die("git-%s failed", argv
[0]);
793 static int push_git(struct discovery
*heads
, int nr_spec
, char **specs
)
795 struct rpc_state rpc
;
797 struct argv_array args
;
799 argv_array_init(&args
);
800 argv_array_pushl(&args
, "send-pack", "--stateless-rpc", "--helper-status",
804 argv_array_push(&args
, "--thin");
806 argv_array_push(&args
, "--dry-run");
807 if (options
.verbosity
== 0)
808 argv_array_push(&args
, "--quiet");
809 else if (options
.verbosity
> 1)
810 argv_array_push(&args
, "--verbose");
811 argv_array_push(&args
, options
.progress
? "--progress" : "--no-progress");
812 argv_array_push(&args
, url
);
813 for (i
= 0; i
< nr_spec
; i
++)
814 argv_array_push(&args
, specs
[i
]);
816 memset(&rpc
, 0, sizeof(rpc
));
817 rpc
.service_name
= "git-receive-pack",
818 rpc
.argv
= args
.argv
;
820 err
= rpc_service(&rpc
, heads
);
822 write_or_die(1, rpc
.result
.buf
, rpc
.result
.len
);
823 strbuf_release(&rpc
.result
);
824 argv_array_clear(&args
);
828 static int push(int nr_spec
, char **specs
)
830 struct discovery
*heads
= discover_refs("git-receive-pack", 1);
833 if (heads
->proto_git
)
834 ret
= push_git(heads
, nr_spec
, specs
);
836 ret
= push_dav(nr_spec
, specs
);
837 free_discovery(heads
);
841 static void parse_push(struct strbuf
*buf
)
844 int alloc_spec
= 0, nr_spec
= 0, i
, ret
;
847 if (!prefixcmp(buf
->buf
, "push ")) {
848 ALLOC_GROW(specs
, nr_spec
+ 1, alloc_spec
);
849 specs
[nr_spec
++] = xstrdup(buf
->buf
+ 5);
852 die("http transport does not support %s", buf
->buf
);
855 if (strbuf_getline(buf
, stdin
, '\n') == EOF
)
861 ret
= push(nr_spec
, specs
);
866 exit(128); /* error already reported */
869 for (i
= 0; i
< nr_spec
; i
++)
874 int main(int argc
, const char **argv
)
876 struct strbuf buf
= STRBUF_INIT
;
879 git_extract_argv0_path(argv
[0]);
880 setup_git_directory_gently(&nongit
);
882 fprintf(stderr
, "Remote needed\n");
886 options
.verbosity
= 1;
887 options
.progress
= !!isatty(2);
890 remote
= remote_get(argv
[1]);
893 end_url_with_slash(&buf
, argv
[2]);
895 end_url_with_slash(&buf
, remote
->url
[0]);
898 url
= strbuf_detach(&buf
, NULL
);
900 http_init(remote
, url
, 0);
903 if (strbuf_getline(&buf
, stdin
, '\n') == EOF
) {
905 fprintf(stderr
, "Error reading command stream\n");
907 fprintf(stderr
, "Unexpected end of command stream\n");
912 if (!prefixcmp(buf
.buf
, "fetch ")) {
914 die("Fetch attempted without a local repo");
917 } else if (!strcmp(buf
.buf
, "list") || !prefixcmp(buf
.buf
, "list ")) {
918 int for_push
= !!strstr(buf
.buf
+ 4, "for-push");
919 output_refs(get_refs(for_push
));
921 } else if (!prefixcmp(buf
.buf
, "push ")) {
924 } else if (!prefixcmp(buf
.buf
, "option ")) {
925 char *name
= buf
.buf
+ strlen("option ");
926 char *value
= strchr(name
, ' ');
934 result
= set_option(name
, value
);
938 printf("error invalid value\n");
940 printf("unsupported\n");
943 } else if (!strcmp(buf
.buf
, "capabilities")) {
950 fprintf(stderr
, "Unknown command '%s'\n", buf
.buf
);