7 #include "run-command.h"
11 static struct remote
*remote
;
12 static const char *url
; /* always ends with a trailing slash */
17 unsigned progress
: 1,
22 static struct options options
;
24 static int set_option(const char *name
, const char *value
)
26 if (!strcmp(name
, "verbosity")) {
28 int v
= strtol(value
, &end
, 10);
29 if (value
== end
|| *end
)
31 options
.verbosity
= v
;
34 else if (!strcmp(name
, "progress")) {
35 if (!strcmp(value
, "true"))
37 else if (!strcmp(value
, "false"))
43 else if (!strcmp(name
, "depth")) {
45 unsigned long v
= strtoul(value
, &end
, 10);
46 if (value
== end
|| *end
)
51 else if (!strcmp(name
, "followtags")) {
52 if (!strcmp(value
, "true"))
53 options
.followtags
= 1;
54 else if (!strcmp(value
, "false"))
55 options
.followtags
= 0;
60 else if (!strcmp(name
, "dry-run")) {
61 if (!strcmp(value
, "true"))
63 else if (!strcmp(value
, "false"))
70 return 1 /* unsupported */;
79 unsigned proto_git
: 1;
81 static struct discovery
*last_discovery
;
83 static void free_discovery(struct discovery
*d
)
86 if (d
== last_discovery
)
87 last_discovery
= NULL
;
93 static struct discovery
* discover_refs(const char *service
)
95 struct strbuf buffer
= STRBUF_INIT
;
96 struct discovery
*last
= last_discovery
;
98 int http_ret
, is_http
= 0, proto_git_candidate
= 1;
100 if (last
&& !strcmp(service
, last
->service
))
102 free_discovery(last
);
104 strbuf_addf(&buffer
, "%sinfo/refs", url
);
105 if (!prefixcmp(url
, "http://") || !prefixcmp(url
, "https://")) {
107 if (!strchr(url
, '?'))
108 strbuf_addch(&buffer
, '?');
110 strbuf_addch(&buffer
, '&');
111 strbuf_addf(&buffer
, "service=%s", service
);
113 refs_url
= strbuf_detach(&buffer
, NULL
);
115 http_ret
= http_get_strbuf(refs_url
, &buffer
, HTTP_NO_CACHE
);
117 /* try again with "plain" url (no ? or & appended) */
118 if (http_ret
!= HTTP_OK
&& http_ret
!= HTTP_NOAUTH
) {
120 strbuf_reset(&buffer
);
122 proto_git_candidate
= 0;
123 strbuf_addf(&buffer
, "%sinfo/refs", url
);
124 refs_url
= strbuf_detach(&buffer
, NULL
);
126 http_ret
= http_get_strbuf(refs_url
, &buffer
, HTTP_NO_CACHE
);
132 case HTTP_MISSING_TARGET
:
133 die("%s not found: did you run git update-server-info on the"
134 " server?", refs_url
);
136 die("Authentication failed");
138 http_error(refs_url
, http_ret
);
139 die("HTTP request failed");
142 last
= xcalloc(1, sizeof(*last_discovery
));
143 last
->service
= service
;
144 last
->buf_alloc
= strbuf_detach(&buffer
, &last
->len
);
145 last
->buf
= last
->buf_alloc
;
147 if (is_http
&& proto_git_candidate
148 && 5 <= last
->len
&& last
->buf
[4] == '#') {
149 /* smart HTTP response; validate that the service
150 * pkt-line matches our request.
152 struct strbuf exp
= STRBUF_INIT
;
154 if (packet_get_line(&buffer
, &last
->buf
, &last
->len
) <= 0)
155 die("%s has invalid packet header", refs_url
);
156 if (buffer
.len
&& buffer
.buf
[buffer
.len
- 1] == '\n')
157 strbuf_setlen(&buffer
, buffer
.len
- 1);
159 strbuf_addf(&exp
, "# service=%s", service
);
160 if (strbuf_cmp(&exp
, &buffer
))
161 die("invalid server response; got '%s'", buffer
.buf
);
162 strbuf_release(&exp
);
164 /* The header can include additional metadata lines, up
165 * until a packet flush marker. Ignore these now, but
166 * in the future we might start to scan them.
168 strbuf_reset(&buffer
);
169 while (packet_get_line(&buffer
, &last
->buf
, &last
->len
) > 0)
170 strbuf_reset(&buffer
);
176 strbuf_release(&buffer
);
177 last_discovery
= last
;
181 static int write_discovery(int in
, int out
, void *data
)
183 struct discovery
*heads
= data
;
185 if (write_in_full(out
, heads
->buf
, heads
->len
) != heads
->len
)
191 static struct ref
*parse_git_refs(struct discovery
*heads
, int for_push
)
193 struct ref
*list
= NULL
;
196 memset(&async
, 0, sizeof(async
));
197 async
.proc
= write_discovery
;
201 if (start_async(&async
))
202 die("cannot start thread to parse advertised refs");
203 get_remote_heads(async
.out
, &list
,
204 for_push
? REF_NORMAL
: 0, NULL
);
206 if (finish_async(&async
))
207 die("ref parsing thread failed");
211 static struct ref
*parse_info_refs(struct discovery
*heads
)
213 char *data
, *start
, *mid
;
217 struct ref
*refs
= NULL
;
218 struct ref
*ref
= NULL
;
219 struct ref
*last_ref
= NULL
;
224 while (i
< heads
->len
) {
230 if (data
[i
] == '\n') {
231 if (mid
- start
!= 40)
232 die("%sinfo/refs not valid: is this a git repository?", url
);
235 ref
= xmalloc(sizeof(struct ref
) +
236 strlen(ref_name
) + 1);
237 memset(ref
, 0, sizeof(struct ref
));
238 strcpy(ref
->name
, ref_name
);
239 get_sha1_hex(start
, ref
->old_sha1
);
243 last_ref
->next
= ref
;
250 ref
= alloc_ref("HEAD");
251 if (!http_fetch_ref(url
, ref
) &&
252 !resolve_remote_symref(ref
, refs
)) {
262 static struct ref
*get_refs(int for_push
)
264 struct discovery
*heads
;
267 heads
= discover_refs("git-receive-pack");
269 heads
= discover_refs("git-upload-pack");
271 if (heads
->proto_git
)
272 return parse_git_refs(heads
, for_push
);
273 return parse_info_refs(heads
);
276 static void output_refs(struct ref
*refs
)
279 for (posn
= refs
; posn
; posn
= posn
->next
) {
281 printf("@%s %s\n", posn
->symref
, posn
->name
);
283 printf("%s %s\n", sha1_to_hex(posn
->old_sha1
), posn
->name
);
291 const char *service_name
;
293 struct strbuf
*stdin_preamble
;
295 char *hdr_content_type
;
303 struct strbuf result
;
304 unsigned gzip_request
: 1;
305 unsigned initial_buffer
: 1;
308 static size_t rpc_out(void *ptr
, size_t eltsize
,
309 size_t nmemb
, void *buffer_
)
311 size_t max
= eltsize
* nmemb
;
312 struct rpc_state
*rpc
= buffer_
;
313 size_t avail
= rpc
->len
- rpc
->pos
;
316 rpc
->initial_buffer
= 0;
317 avail
= packet_read_line(rpc
->out
, rpc
->buf
, rpc
->alloc
);
326 memcpy(ptr
, rpc
->buf
+ rpc
->pos
, avail
);
331 #ifndef NO_CURL_IOCTL
332 static curlioerr
rpc_ioctl(CURL
*handle
, int cmd
, void *clientp
)
334 struct rpc_state
*rpc
= clientp
;
340 case CURLIOCMD_RESTARTREAD
:
341 if (rpc
->initial_buffer
) {
345 fprintf(stderr
, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
346 return CURLIOE_FAILRESTART
;
349 return CURLIOE_UNKNOWNCMD
;
354 static size_t rpc_in(char *ptr
, size_t eltsize
,
355 size_t nmemb
, void *buffer_
)
357 size_t size
= eltsize
* nmemb
;
358 struct rpc_state
*rpc
= buffer_
;
359 write_or_die(rpc
->in
, ptr
, size
);
363 static int run_slot(struct active_request_slot
*slot
)
366 struct slot_results results
;
368 slot
->results
= &results
;
369 slot
->curl_result
= curl_easy_perform(slot
->curl
);
370 finish_active_slot(slot
);
372 err
= handle_curl_result(&results
);
373 if (err
!= HTTP_OK
&& err
!= HTTP_REAUTH
) {
374 error("RPC failed; result=%d, HTTP code = %ld",
375 results
.curl_result
, results
.http_code
);
381 static int probe_rpc(struct rpc_state
*rpc
)
383 struct active_request_slot
*slot
;
384 struct curl_slist
*headers
= NULL
;
385 struct strbuf buf
= STRBUF_INIT
;
388 slot
= get_active_slot();
390 headers
= curl_slist_append(headers
, rpc
->hdr_content_type
);
391 headers
= curl_slist_append(headers
, rpc
->hdr_accept
);
393 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
394 curl_easy_setopt(slot
->curl
, CURLOPT_POST
, 1);
395 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, rpc
->service_url
);
396 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "");
397 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, "0000");
398 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, 4);
399 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
400 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_buffer
);
401 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, &buf
);
403 err
= run_slot(slot
);
405 curl_slist_free_all(headers
);
406 strbuf_release(&buf
);
410 static int post_rpc(struct rpc_state
*rpc
)
412 struct active_request_slot
*slot
;
413 struct curl_slist
*headers
= NULL
;
414 int use_gzip
= rpc
->gzip_request
;
415 char *gzip_body
= NULL
;
416 size_t gzip_size
= 0;
417 int err
, large_request
= 0;
419 /* Try to load the entire request, if we can fit it into the
420 * allocated buffer space we can use HTTP/1.0 and avoid the
421 * chunked encoding mess.
424 size_t left
= rpc
->alloc
- rpc
->len
;
425 char *buf
= rpc
->buf
+ rpc
->len
;
428 if (left
< LARGE_PACKET_MAX
) {
434 n
= packet_read_line(rpc
->out
, buf
, left
);
442 err
= probe_rpc(rpc
);
443 } while (err
== HTTP_REAUTH
);
448 headers
= curl_slist_append(headers
, rpc
->hdr_content_type
);
449 headers
= curl_slist_append(headers
, rpc
->hdr_accept
);
450 headers
= curl_slist_append(headers
, "Expect:");
453 slot
= get_active_slot();
455 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
456 curl_easy_setopt(slot
->curl
, CURLOPT_POST
, 1);
457 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, rpc
->service_url
);
458 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "");
461 /* The request body is large and the size cannot be predicted.
462 * We must use chunked encoding to send it.
464 headers
= curl_slist_append(headers
, "Transfer-Encoding: chunked");
465 rpc
->initial_buffer
= 1;
466 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, rpc_out
);
467 curl_easy_setopt(slot
->curl
, CURLOPT_INFILE
, rpc
);
468 #ifndef NO_CURL_IOCTL
469 curl_easy_setopt(slot
->curl
, CURLOPT_IOCTLFUNCTION
, rpc_ioctl
);
470 curl_easy_setopt(slot
->curl
, CURLOPT_IOCTLDATA
, rpc
);
472 if (options
.verbosity
> 1) {
473 fprintf(stderr
, "POST %s (chunked)\n", rpc
->service_name
);
477 } else if (gzip_body
) {
479 * If we are looping to retry authentication, then the previous
480 * run will have set up the headers and gzip buffer already,
481 * and we just need to send it.
483 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, gzip_body
);
484 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, gzip_size
);
486 } else if (use_gzip
&& 1024 < rpc
->len
) {
487 /* The client backend isn't giving us compressed data so
488 * we can try to deflate it ourselves, this may save on.
494 memset(&stream
, 0, sizeof(stream
));
495 git_deflate_init_gzip(&stream
, Z_BEST_COMPRESSION
);
496 gzip_size
= git_deflate_bound(&stream
, rpc
->len
);
497 gzip_body
= xmalloc(gzip_size
);
499 stream
.next_in
= (unsigned char *)rpc
->buf
;
500 stream
.avail_in
= rpc
->len
;
501 stream
.next_out
= (unsigned char *)gzip_body
;
502 stream
.avail_out
= gzip_size
;
504 ret
= git_deflate(&stream
, Z_FINISH
);
505 if (ret
!= Z_STREAM_END
)
506 die("cannot deflate request; zlib deflate error %d", ret
);
508 ret
= git_deflate_end_gently(&stream
);
510 die("cannot deflate request; zlib end error %d", ret
);
512 gzip_size
= stream
.total_out
;
514 headers
= curl_slist_append(headers
, "Content-Encoding: gzip");
515 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, gzip_body
);
516 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, gzip_size
);
518 if (options
.verbosity
> 1) {
519 fprintf(stderr
, "POST %s (gzip %lu to %lu bytes)\n",
521 (unsigned long)rpc
->len
, (unsigned long)gzip_size
);
525 /* We know the complete request size in advance, use the
526 * more normal Content-Length approach.
528 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, rpc
->buf
);
529 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, rpc
->len
);
530 if (options
.verbosity
> 1) {
531 fprintf(stderr
, "POST %s (%lu bytes)\n",
532 rpc
->service_name
, (unsigned long)rpc
->len
);
537 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
538 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, rpc_in
);
539 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, rpc
);
541 err
= run_slot(slot
);
542 if (err
== HTTP_REAUTH
&& !large_request
)
547 curl_slist_free_all(headers
);
552 static int rpc_service(struct rpc_state
*rpc
, struct discovery
*heads
)
554 const char *svc
= rpc
->service_name
;
555 struct strbuf buf
= STRBUF_INIT
;
556 struct strbuf
*preamble
= rpc
->stdin_preamble
;
557 struct child_process client
;
560 memset(&client
, 0, sizeof(client
));
564 client
.argv
= rpc
->argv
;
565 if (start_command(&client
))
568 write_or_die(client
.in
, preamble
->buf
, preamble
->len
);
570 write_or_die(client
.in
, heads
->buf
, heads
->len
);
572 rpc
->alloc
= http_post_buffer
;
573 rpc
->buf
= xmalloc(rpc
->alloc
);
575 rpc
->out
= client
.out
;
576 strbuf_init(&rpc
->result
, 0);
578 strbuf_addf(&buf
, "%s%s", url
, svc
);
579 rpc
->service_url
= strbuf_detach(&buf
, NULL
);
581 strbuf_addf(&buf
, "Content-Type: application/x-%s-request", svc
);
582 rpc
->hdr_content_type
= strbuf_detach(&buf
, NULL
);
584 strbuf_addf(&buf
, "Accept: application/x-%s-result", svc
);
585 rpc
->hdr_accept
= strbuf_detach(&buf
, NULL
);
588 int n
= packet_read_line(rpc
->out
, rpc
->buf
, rpc
->alloc
);
593 err
|= post_rpc(rpc
);
599 strbuf_read(&rpc
->result
, client
.out
, 0);
603 if (xread(client
.out
, buf
, sizeof(buf
)) <= 0)
610 err
|= finish_command(&client
);
611 free(rpc
->service_url
);
612 free(rpc
->hdr_content_type
);
613 free(rpc
->hdr_accept
);
615 strbuf_release(&buf
);
619 static int fetch_dumb(int nr_heads
, struct ref
**to_fetch
)
621 struct walker
*walker
;
622 char **targets
= xmalloc(nr_heads
* sizeof(char*));
626 die("dumb http transport does not support --depth");
627 for (i
= 0; i
< nr_heads
; i
++)
628 targets
[i
] = xstrdup(sha1_to_hex(to_fetch
[i
]->old_sha1
));
630 walker
= get_http_walker(url
);
632 walker
->get_tree
= 1;
633 walker
->get_history
= 1;
634 walker
->get_verbosely
= options
.verbosity
>= 3;
635 walker
->get_recover
= 0;
636 ret
= walker_fetch(walker
, nr_heads
, targets
, NULL
, NULL
);
639 for (i
= 0; i
< nr_heads
; i
++)
643 return ret
? error("Fetch failed.") : 0;
646 static int fetch_git(struct discovery
*heads
,
647 int nr_heads
, struct ref
**to_fetch
)
649 struct rpc_state rpc
;
650 struct strbuf preamble
= STRBUF_INIT
;
651 char *depth_arg
= NULL
;
652 int argc
= 0, i
, err
;
653 const char *argv
[15];
655 argv
[argc
++] = "fetch-pack";
656 argv
[argc
++] = "--stateless-rpc";
657 argv
[argc
++] = "--stdin";
658 argv
[argc
++] = "--lock-pack";
659 if (options
.followtags
)
660 argv
[argc
++] = "--include-tag";
662 argv
[argc
++] = "--thin";
663 if (options
.verbosity
>= 3) {
667 if (!options
.progress
)
668 argv
[argc
++] = "--no-progress";
670 struct strbuf buf
= STRBUF_INIT
;
671 strbuf_addf(&buf
, "--depth=%lu", options
.depth
);
672 depth_arg
= strbuf_detach(&buf
, NULL
);
673 argv
[argc
++] = depth_arg
;
678 for (i
= 0; i
< nr_heads
; i
++) {
679 struct ref
*ref
= to_fetch
[i
];
680 if (!ref
->name
|| !*ref
->name
)
681 die("cannot fetch by sha1 over smart http");
682 packet_buf_write(&preamble
, "%s\n", ref
->name
);
684 packet_buf_flush(&preamble
);
686 memset(&rpc
, 0, sizeof(rpc
));
687 rpc
.service_name
= "git-upload-pack",
689 rpc
.stdin_preamble
= &preamble
;
690 rpc
.gzip_request
= 1;
692 err
= rpc_service(&rpc
, heads
);
694 safe_write(1, rpc
.result
.buf
, rpc
.result
.len
);
695 strbuf_release(&rpc
.result
);
696 strbuf_release(&preamble
);
701 static int fetch(int nr_heads
, struct ref
**to_fetch
)
703 struct discovery
*d
= discover_refs("git-upload-pack");
705 return fetch_git(d
, nr_heads
, to_fetch
);
707 return fetch_dumb(nr_heads
, to_fetch
);
710 static void parse_fetch(struct strbuf
*buf
)
712 struct ref
**to_fetch
= NULL
;
713 struct ref
*list_head
= NULL
;
714 struct ref
**list
= &list_head
;
715 int alloc_heads
= 0, nr_heads
= 0;
718 if (!prefixcmp(buf
->buf
, "fetch ")) {
719 char *p
= buf
->buf
+ strlen("fetch ");
722 unsigned char old_sha1
[20];
724 if (strlen(p
) < 40 || get_sha1_hex(p
, old_sha1
))
725 die("protocol error: expected sha/ref, got %s'", p
);
731 die("protocol error: expected sha/ref, got %s'", p
);
733 ref
= alloc_ref(name
);
734 hashcpy(ref
->old_sha1
, old_sha1
);
739 ALLOC_GROW(to_fetch
, nr_heads
+ 1, alloc_heads
);
740 to_fetch
[nr_heads
++] = ref
;
743 die("http transport does not support %s", buf
->buf
);
746 if (strbuf_getline(buf
, stdin
, '\n') == EOF
)
752 if (fetch(nr_heads
, to_fetch
))
753 exit(128); /* error already reported */
754 free_refs(list_head
);
762 static int push_dav(int nr_spec
, char **specs
)
764 const char **argv
= xmalloc((10 + nr_spec
) * sizeof(char*));
767 argv
[argc
++] = "http-push";
768 argv
[argc
++] = "--helper-status";
770 argv
[argc
++] = "--dry-run";
771 if (options
.verbosity
> 1)
772 argv
[argc
++] = "--verbose";
774 for (i
= 0; i
< nr_spec
; i
++)
775 argv
[argc
++] = specs
[i
];
778 if (run_command_v_opt(argv
, RUN_GIT_CMD
))
779 die("git-%s failed", argv
[0]);
784 static int push_git(struct discovery
*heads
, int nr_spec
, char **specs
)
786 struct rpc_state rpc
;
788 int argc
= 0, i
, err
;
790 argv
= xmalloc((10 + nr_spec
) * sizeof(char*));
791 argv
[argc
++] = "send-pack";
792 argv
[argc
++] = "--stateless-rpc";
793 argv
[argc
++] = "--helper-status";
795 argv
[argc
++] = "--thin";
797 argv
[argc
++] = "--dry-run";
798 if (options
.verbosity
== 0)
799 argv
[argc
++] = "--quiet";
800 else if (options
.verbosity
> 1)
801 argv
[argc
++] = "--verbose";
802 argv
[argc
++] = options
.progress
? "--progress" : "--no-progress";
804 for (i
= 0; i
< nr_spec
; i
++)
805 argv
[argc
++] = specs
[i
];
808 memset(&rpc
, 0, sizeof(rpc
));
809 rpc
.service_name
= "git-receive-pack",
812 err
= rpc_service(&rpc
, heads
);
814 safe_write(1, rpc
.result
.buf
, rpc
.result
.len
);
815 strbuf_release(&rpc
.result
);
820 static int push(int nr_spec
, char **specs
)
822 struct discovery
*heads
= discover_refs("git-receive-pack");
825 if (heads
->proto_git
)
826 ret
= push_git(heads
, nr_spec
, specs
);
828 ret
= push_dav(nr_spec
, specs
);
829 free_discovery(heads
);
833 static void parse_push(struct strbuf
*buf
)
836 int alloc_spec
= 0, nr_spec
= 0, i
, ret
;
839 if (!prefixcmp(buf
->buf
, "push ")) {
840 ALLOC_GROW(specs
, nr_spec
+ 1, alloc_spec
);
841 specs
[nr_spec
++] = xstrdup(buf
->buf
+ 5);
844 die("http transport does not support %s", buf
->buf
);
847 if (strbuf_getline(buf
, stdin
, '\n') == EOF
)
853 ret
= push(nr_spec
, specs
);
858 exit(128); /* error already reported */
861 for (i
= 0; i
< nr_spec
; i
++)
866 int main(int argc
, const char **argv
)
868 struct strbuf buf
= STRBUF_INIT
;
871 git_extract_argv0_path(argv
[0]);
872 setup_git_directory_gently(&nongit
);
874 fprintf(stderr
, "Remote needed\n");
878 options
.verbosity
= 1;
879 options
.progress
= !!isatty(2);
882 remote
= remote_get(argv
[1]);
885 end_url_with_slash(&buf
, argv
[2]);
887 end_url_with_slash(&buf
, remote
->url
[0]);
890 url
= strbuf_detach(&buf
, NULL
);
892 http_init(remote
, url
, 0);
895 if (strbuf_getline(&buf
, stdin
, '\n') == EOF
) {
897 fprintf(stderr
, "Error reading command stream\n");
899 fprintf(stderr
, "Unexpected end of command stream\n");
904 if (!prefixcmp(buf
.buf
, "fetch ")) {
906 die("Fetch attempted without a local repo");
909 } else if (!strcmp(buf
.buf
, "list") || !prefixcmp(buf
.buf
, "list ")) {
910 int for_push
= !!strstr(buf
.buf
+ 4, "for-push");
911 output_refs(get_refs(for_push
));
913 } else if (!prefixcmp(buf
.buf
, "push ")) {
916 } else if (!prefixcmp(buf
.buf
, "option ")) {
917 char *name
= buf
.buf
+ strlen("option ");
918 char *value
= strchr(name
, ' ');
926 result
= set_option(name
, value
);
930 printf("error invalid value\n");
932 printf("unsupported\n");
935 } else if (!strcmp(buf
.buf
, "capabilities")) {
942 fprintf(stderr
, "Unknown command '%s'\n", buf
.buf
);