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 */;
80 unsigned proto_git
: 1;
82 static struct discovery
*last_discovery
;
84 static struct ref
*parse_git_refs(struct discovery
*heads
, int for_push
)
86 struct ref
*list
= NULL
;
87 get_remote_heads(-1, heads
->buf
, heads
->len
, &list
,
88 for_push
? REF_NORMAL
: 0, NULL
);
92 static struct ref
*parse_info_refs(struct discovery
*heads
)
94 char *data
, *start
, *mid
;
98 struct ref
*refs
= NULL
;
99 struct ref
*ref
= NULL
;
100 struct ref
*last_ref
= NULL
;
105 while (i
< heads
->len
) {
111 if (data
[i
] == '\n') {
112 if (mid
- start
!= 40)
113 die("%sinfo/refs not valid: is this a git repository?", url
);
116 ref
= xmalloc(sizeof(struct ref
) +
117 strlen(ref_name
) + 1);
118 memset(ref
, 0, sizeof(struct ref
));
119 strcpy(ref
->name
, ref_name
);
120 get_sha1_hex(start
, ref
->old_sha1
);
124 last_ref
->next
= ref
;
131 ref
= alloc_ref("HEAD");
132 if (!http_fetch_ref(url
, ref
) &&
133 !resolve_remote_symref(ref
, refs
)) {
143 static void free_discovery(struct discovery
*d
)
146 if (d
== last_discovery
)
147 last_discovery
= NULL
;
154 static int show_http_message(struct strbuf
*type
, struct strbuf
*msg
)
159 * We only show text/plain parts, as other types are likely
160 * to be ugly to look at on the user's terminal.
162 * TODO should handle "; charset=XXX", and re-encode into
165 if (strcasecmp(type
->buf
, "text/plain"))
174 eol
= strchrnul(p
, '\n');
175 fprintf(stderr
, "remote: %.*s\n", (int)(eol
- p
), p
);
181 static struct discovery
* discover_refs(const char *service
, int for_push
)
183 struct strbuf exp
= STRBUF_INIT
;
184 struct strbuf type
= STRBUF_INIT
;
185 struct strbuf buffer
= STRBUF_INIT
;
186 struct discovery
*last
= last_discovery
;
188 int http_ret
, maybe_smart
= 0;
190 if (last
&& !strcmp(service
, last
->service
))
192 free_discovery(last
);
194 strbuf_addf(&buffer
, "%sinfo/refs", url
);
195 if ((!prefixcmp(url
, "http://") || !prefixcmp(url
, "https://")) &&
196 git_env_bool("GIT_SMART_HTTP", 1)) {
198 if (!strchr(url
, '?'))
199 strbuf_addch(&buffer
, '?');
201 strbuf_addch(&buffer
, '&');
202 strbuf_addf(&buffer
, "service=%s", service
);
204 refs_url
= strbuf_detach(&buffer
, NULL
);
206 http_ret
= http_get_strbuf(refs_url
, &type
, &buffer
,
207 HTTP_NO_CACHE
| HTTP_KEEP_ERROR
);
211 case HTTP_MISSING_TARGET
:
212 if (!show_http_message(&type
, &buffer
))
213 die("repository '%s' not found", url
);
214 die("%s not found: did you run git update-server-info on the"
215 " server?", refs_url
);
217 show_http_message(&type
, &buffer
);
218 die("Authentication failed");
220 show_http_message(&type
, &buffer
);
221 http_error(refs_url
, http_ret
);
222 die("HTTP request failed");
225 last
= xcalloc(1, sizeof(*last_discovery
));
226 last
->service
= service
;
227 last
->buf_alloc
= strbuf_detach(&buffer
, &last
->len
);
228 last
->buf
= last
->buf_alloc
;
230 strbuf_addf(&exp
, "application/x-%s-advertisement", service
);
232 (5 <= last
->len
&& last
->buf
[4] == '#') &&
233 !strbuf_cmp(&exp
, &type
)) {
237 * smart HTTP response; validate that the service
238 * pkt-line matches our request.
240 line
= packet_read_line_buf(&last
->buf
, &last
->len
, NULL
);
243 strbuf_addf(&exp
, "# service=%s", service
);
244 if (strcmp(line
, exp
.buf
))
245 die("invalid server response; got '%s'", line
);
246 strbuf_release(&exp
);
248 /* The header can include additional metadata lines, up
249 * until a packet flush marker. Ignore these now, but
250 * in the future we might start to scan them.
252 while (packet_read_line_buf(&last
->buf
, &last
->len
, NULL
))
259 last
->refs
= parse_git_refs(last
, for_push
);
261 last
->refs
= parse_info_refs(last
);
264 strbuf_release(&exp
);
265 strbuf_release(&type
);
266 strbuf_release(&buffer
);
267 last_discovery
= last
;
271 static struct ref
*get_refs(int for_push
)
273 struct discovery
*heads
;
276 heads
= discover_refs("git-receive-pack", for_push
);
278 heads
= discover_refs("git-upload-pack", for_push
);
283 static void output_refs(struct ref
*refs
)
286 for (posn
= refs
; posn
; posn
= posn
->next
) {
288 printf("@%s %s\n", posn
->symref
, posn
->name
);
290 printf("%s %s\n", sha1_to_hex(posn
->old_sha1
), posn
->name
);
297 const char *service_name
;
299 struct strbuf
*stdin_preamble
;
301 char *hdr_content_type
;
309 struct strbuf result
;
310 unsigned gzip_request
: 1;
311 unsigned initial_buffer
: 1;
314 static size_t rpc_out(void *ptr
, size_t eltsize
,
315 size_t nmemb
, void *buffer_
)
317 size_t max
= eltsize
* nmemb
;
318 struct rpc_state
*rpc
= buffer_
;
319 size_t avail
= rpc
->len
- rpc
->pos
;
322 rpc
->initial_buffer
= 0;
323 avail
= packet_read(rpc
->out
, NULL
, NULL
, rpc
->buf
, rpc
->alloc
, 0);
332 memcpy(ptr
, rpc
->buf
+ rpc
->pos
, avail
);
337 #ifndef NO_CURL_IOCTL
338 static curlioerr
rpc_ioctl(CURL
*handle
, int cmd
, void *clientp
)
340 struct rpc_state
*rpc
= clientp
;
346 case CURLIOCMD_RESTARTREAD
:
347 if (rpc
->initial_buffer
) {
351 fprintf(stderr
, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
352 return CURLIOE_FAILRESTART
;
355 return CURLIOE_UNKNOWNCMD
;
360 static size_t rpc_in(char *ptr
, size_t eltsize
,
361 size_t nmemb
, void *buffer_
)
363 size_t size
= eltsize
* nmemb
;
364 struct rpc_state
*rpc
= buffer_
;
365 write_or_die(rpc
->in
, ptr
, size
);
369 static int run_slot(struct active_request_slot
*slot
)
372 struct slot_results results
;
374 slot
->results
= &results
;
375 slot
->curl_result
= curl_easy_perform(slot
->curl
);
376 finish_active_slot(slot
);
378 err
= handle_curl_result(&results
);
379 if (err
!= HTTP_OK
&& err
!= HTTP_REAUTH
) {
380 error("RPC failed; result=%d, HTTP code = %ld",
381 results
.curl_result
, results
.http_code
);
387 static int probe_rpc(struct rpc_state
*rpc
)
389 struct active_request_slot
*slot
;
390 struct curl_slist
*headers
= NULL
;
391 struct strbuf buf
= STRBUF_INIT
;
394 slot
= get_active_slot();
396 headers
= curl_slist_append(headers
, rpc
->hdr_content_type
);
397 headers
= curl_slist_append(headers
, rpc
->hdr_accept
);
399 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
400 curl_easy_setopt(slot
->curl
, CURLOPT_POST
, 1);
401 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, rpc
->service_url
);
402 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, NULL
);
403 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, "0000");
404 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, 4);
405 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
406 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_buffer
);
407 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, &buf
);
409 err
= run_slot(slot
);
411 curl_slist_free_all(headers
);
412 strbuf_release(&buf
);
416 static int post_rpc(struct rpc_state
*rpc
)
418 struct active_request_slot
*slot
;
419 struct curl_slist
*headers
= NULL
;
420 int use_gzip
= rpc
->gzip_request
;
421 char *gzip_body
= NULL
;
422 size_t gzip_size
= 0;
423 int err
, large_request
= 0;
425 /* Try to load the entire request, if we can fit it into the
426 * allocated buffer space we can use HTTP/1.0 and avoid the
427 * chunked encoding mess.
430 size_t left
= rpc
->alloc
- rpc
->len
;
431 char *buf
= rpc
->buf
+ rpc
->len
;
434 if (left
< LARGE_PACKET_MAX
) {
440 n
= packet_read(rpc
->out
, NULL
, NULL
, buf
, left
, 0);
448 err
= probe_rpc(rpc
);
449 } while (err
== HTTP_REAUTH
);
454 headers
= curl_slist_append(headers
, rpc
->hdr_content_type
);
455 headers
= curl_slist_append(headers
, rpc
->hdr_accept
);
456 headers
= curl_slist_append(headers
, "Expect:");
459 slot
= get_active_slot();
461 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
462 curl_easy_setopt(slot
->curl
, CURLOPT_POST
, 1);
463 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, rpc
->service_url
);
464 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "gzip");
467 /* The request body is large and the size cannot be predicted.
468 * We must use chunked encoding to send it.
470 headers
= curl_slist_append(headers
, "Transfer-Encoding: chunked");
471 rpc
->initial_buffer
= 1;
472 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, rpc_out
);
473 curl_easy_setopt(slot
->curl
, CURLOPT_INFILE
, rpc
);
474 #ifndef NO_CURL_IOCTL
475 curl_easy_setopt(slot
->curl
, CURLOPT_IOCTLFUNCTION
, rpc_ioctl
);
476 curl_easy_setopt(slot
->curl
, CURLOPT_IOCTLDATA
, rpc
);
478 if (options
.verbosity
> 1) {
479 fprintf(stderr
, "POST %s (chunked)\n", rpc
->service_name
);
483 } else if (gzip_body
) {
485 * If we are looping to retry authentication, then the previous
486 * run will have set up the headers and gzip buffer already,
487 * and we just need to send it.
489 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, gzip_body
);
490 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, gzip_size
);
492 } else if (use_gzip
&& 1024 < rpc
->len
) {
493 /* The client backend isn't giving us compressed data so
494 * we can try to deflate it ourselves, this may save on.
500 memset(&stream
, 0, sizeof(stream
));
501 git_deflate_init_gzip(&stream
, Z_BEST_COMPRESSION
);
502 gzip_size
= git_deflate_bound(&stream
, rpc
->len
);
503 gzip_body
= xmalloc(gzip_size
);
505 stream
.next_in
= (unsigned char *)rpc
->buf
;
506 stream
.avail_in
= rpc
->len
;
507 stream
.next_out
= (unsigned char *)gzip_body
;
508 stream
.avail_out
= gzip_size
;
510 ret
= git_deflate(&stream
, Z_FINISH
);
511 if (ret
!= Z_STREAM_END
)
512 die("cannot deflate request; zlib deflate error %d", ret
);
514 ret
= git_deflate_end_gently(&stream
);
516 die("cannot deflate request; zlib end error %d", ret
);
518 gzip_size
= stream
.total_out
;
520 headers
= curl_slist_append(headers
, "Content-Encoding: gzip");
521 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, gzip_body
);
522 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, gzip_size
);
524 if (options
.verbosity
> 1) {
525 fprintf(stderr
, "POST %s (gzip %lu to %lu bytes)\n",
527 (unsigned long)rpc
->len
, (unsigned long)gzip_size
);
531 /* We know the complete request size in advance, use the
532 * more normal Content-Length approach.
534 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, rpc
->buf
);
535 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDSIZE
, rpc
->len
);
536 if (options
.verbosity
> 1) {
537 fprintf(stderr
, "POST %s (%lu bytes)\n",
538 rpc
->service_name
, (unsigned long)rpc
->len
);
543 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
544 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, rpc_in
);
545 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, rpc
);
547 err
= run_slot(slot
);
548 if (err
== HTTP_REAUTH
&& !large_request
)
553 curl_slist_free_all(headers
);
558 static int rpc_service(struct rpc_state
*rpc
, struct discovery
*heads
)
560 const char *svc
= rpc
->service_name
;
561 struct strbuf buf
= STRBUF_INIT
;
562 struct strbuf
*preamble
= rpc
->stdin_preamble
;
563 struct child_process client
;
566 memset(&client
, 0, sizeof(client
));
570 client
.argv
= rpc
->argv
;
571 if (start_command(&client
))
574 write_or_die(client
.in
, preamble
->buf
, preamble
->len
);
576 write_or_die(client
.in
, heads
->buf
, heads
->len
);
578 rpc
->alloc
= http_post_buffer
;
579 rpc
->buf
= xmalloc(rpc
->alloc
);
581 rpc
->out
= client
.out
;
582 strbuf_init(&rpc
->result
, 0);
584 strbuf_addf(&buf
, "%s%s", url
, svc
);
585 rpc
->service_url
= strbuf_detach(&buf
, NULL
);
587 strbuf_addf(&buf
, "Content-Type: application/x-%s-request", svc
);
588 rpc
->hdr_content_type
= strbuf_detach(&buf
, NULL
);
590 strbuf_addf(&buf
, "Accept: application/x-%s-result", svc
);
591 rpc
->hdr_accept
= strbuf_detach(&buf
, NULL
);
594 int n
= packet_read(rpc
->out
, NULL
, NULL
, rpc
->buf
, rpc
->alloc
, 0);
599 err
|= post_rpc(rpc
);
605 strbuf_read(&rpc
->result
, client
.out
, 0);
609 if (xread(client
.out
, buf
, sizeof(buf
)) <= 0)
616 err
|= finish_command(&client
);
617 free(rpc
->service_url
);
618 free(rpc
->hdr_content_type
);
619 free(rpc
->hdr_accept
);
621 strbuf_release(&buf
);
625 static int fetch_dumb(int nr_heads
, struct ref
**to_fetch
)
627 struct walker
*walker
;
628 char **targets
= xmalloc(nr_heads
* sizeof(char*));
632 die("dumb http transport does not support --depth");
633 for (i
= 0; i
< nr_heads
; i
++)
634 targets
[i
] = xstrdup(sha1_to_hex(to_fetch
[i
]->old_sha1
));
636 walker
= get_http_walker(url
);
638 walker
->get_tree
= 1;
639 walker
->get_history
= 1;
640 walker
->get_verbosely
= options
.verbosity
>= 3;
641 walker
->get_recover
= 0;
642 ret
= walker_fetch(walker
, nr_heads
, targets
, NULL
, NULL
);
645 for (i
= 0; i
< nr_heads
; i
++)
649 return ret
? error("Fetch failed.") : 0;
652 static int fetch_git(struct discovery
*heads
,
653 int nr_heads
, struct ref
**to_fetch
)
655 struct rpc_state rpc
;
656 struct strbuf preamble
= STRBUF_INIT
;
657 char *depth_arg
= NULL
;
658 int argc
= 0, i
, err
;
659 const char *argv
[15];
661 argv
[argc
++] = "fetch-pack";
662 argv
[argc
++] = "--stateless-rpc";
663 argv
[argc
++] = "--stdin";
664 argv
[argc
++] = "--lock-pack";
665 if (options
.followtags
)
666 argv
[argc
++] = "--include-tag";
668 argv
[argc
++] = "--thin";
669 if (options
.verbosity
>= 3) {
673 if (!options
.progress
)
674 argv
[argc
++] = "--no-progress";
676 struct strbuf buf
= STRBUF_INIT
;
677 strbuf_addf(&buf
, "--depth=%lu", options
.depth
);
678 depth_arg
= strbuf_detach(&buf
, NULL
);
679 argv
[argc
++] = depth_arg
;
684 for (i
= 0; i
< nr_heads
; i
++) {
685 struct ref
*ref
= to_fetch
[i
];
686 if (!ref
->name
|| !*ref
->name
)
687 die("cannot fetch by sha1 over smart http");
688 packet_buf_write(&preamble
, "%s\n", ref
->name
);
690 packet_buf_flush(&preamble
);
692 memset(&rpc
, 0, sizeof(rpc
));
693 rpc
.service_name
= "git-upload-pack",
695 rpc
.stdin_preamble
= &preamble
;
696 rpc
.gzip_request
= 1;
698 err
= rpc_service(&rpc
, heads
);
700 write_or_die(1, rpc
.result
.buf
, rpc
.result
.len
);
701 strbuf_release(&rpc
.result
);
702 strbuf_release(&preamble
);
707 static int fetch(int nr_heads
, struct ref
**to_fetch
)
709 struct discovery
*d
= discover_refs("git-upload-pack", 0);
711 return fetch_git(d
, nr_heads
, to_fetch
);
713 return fetch_dumb(nr_heads
, to_fetch
);
716 static void parse_fetch(struct strbuf
*buf
)
718 struct ref
**to_fetch
= NULL
;
719 struct ref
*list_head
= NULL
;
720 struct ref
**list
= &list_head
;
721 int alloc_heads
= 0, nr_heads
= 0;
724 if (!prefixcmp(buf
->buf
, "fetch ")) {
725 char *p
= buf
->buf
+ strlen("fetch ");
728 unsigned char old_sha1
[20];
730 if (strlen(p
) < 40 || get_sha1_hex(p
, old_sha1
))
731 die("protocol error: expected sha/ref, got %s'", p
);
737 die("protocol error: expected sha/ref, got %s'", p
);
739 ref
= alloc_ref(name
);
740 hashcpy(ref
->old_sha1
, old_sha1
);
745 ALLOC_GROW(to_fetch
, nr_heads
+ 1, alloc_heads
);
746 to_fetch
[nr_heads
++] = ref
;
749 die("http transport does not support %s", buf
->buf
);
752 if (strbuf_getline(buf
, stdin
, '\n') == EOF
)
758 if (fetch(nr_heads
, to_fetch
))
759 exit(128); /* error already reported */
760 free_refs(list_head
);
768 static int push_dav(int nr_spec
, char **specs
)
770 const char **argv
= xmalloc((10 + nr_spec
) * sizeof(char*));
773 argv
[argc
++] = "http-push";
774 argv
[argc
++] = "--helper-status";
776 argv
[argc
++] = "--dry-run";
777 if (options
.verbosity
> 1)
778 argv
[argc
++] = "--verbose";
780 for (i
= 0; i
< nr_spec
; i
++)
781 argv
[argc
++] = specs
[i
];
784 if (run_command_v_opt(argv
, RUN_GIT_CMD
))
785 die("git-%s failed", argv
[0]);
790 static int push_git(struct discovery
*heads
, int nr_spec
, char **specs
)
792 struct rpc_state rpc
;
794 int argc
= 0, i
, err
;
796 argv
= xmalloc((10 + nr_spec
) * sizeof(char*));
797 argv
[argc
++] = "send-pack";
798 argv
[argc
++] = "--stateless-rpc";
799 argv
[argc
++] = "--helper-status";
801 argv
[argc
++] = "--thin";
803 argv
[argc
++] = "--dry-run";
804 if (options
.verbosity
== 0)
805 argv
[argc
++] = "--quiet";
806 else if (options
.verbosity
> 1)
807 argv
[argc
++] = "--verbose";
808 argv
[argc
++] = options
.progress
? "--progress" : "--no-progress";
810 for (i
= 0; i
< nr_spec
; i
++)
811 argv
[argc
++] = specs
[i
];
814 memset(&rpc
, 0, sizeof(rpc
));
815 rpc
.service_name
= "git-receive-pack",
818 err
= rpc_service(&rpc
, heads
);
820 write_or_die(1, rpc
.result
.buf
, rpc
.result
.len
);
821 strbuf_release(&rpc
.result
);
826 static int push(int nr_spec
, char **specs
)
828 struct discovery
*heads
= discover_refs("git-receive-pack", 1);
831 if (heads
->proto_git
)
832 ret
= push_git(heads
, nr_spec
, specs
);
834 ret
= push_dav(nr_spec
, specs
);
835 free_discovery(heads
);
839 static void parse_push(struct strbuf
*buf
)
842 int alloc_spec
= 0, nr_spec
= 0, i
, ret
;
845 if (!prefixcmp(buf
->buf
, "push ")) {
846 ALLOC_GROW(specs
, nr_spec
+ 1, alloc_spec
);
847 specs
[nr_spec
++] = xstrdup(buf
->buf
+ 5);
850 die("http transport does not support %s", buf
->buf
);
853 if (strbuf_getline(buf
, stdin
, '\n') == EOF
)
859 ret
= push(nr_spec
, specs
);
864 exit(128); /* error already reported */
867 for (i
= 0; i
< nr_spec
; i
++)
872 int main(int argc
, const char **argv
)
874 struct strbuf buf
= STRBUF_INIT
;
877 git_extract_argv0_path(argv
[0]);
878 setup_git_directory_gently(&nongit
);
880 fprintf(stderr
, "Remote needed\n");
884 options
.verbosity
= 1;
885 options
.progress
= !!isatty(2);
888 remote
= remote_get(argv
[1]);
891 end_url_with_slash(&buf
, argv
[2]);
893 end_url_with_slash(&buf
, remote
->url
[0]);
896 url
= strbuf_detach(&buf
, NULL
);
898 http_init(remote
, url
, 0);
901 if (strbuf_getline(&buf
, stdin
, '\n') == EOF
) {
903 fprintf(stderr
, "Error reading command stream\n");
905 fprintf(stderr
, "Unexpected end of command stream\n");
910 if (!prefixcmp(buf
.buf
, "fetch ")) {
912 die("Fetch attempted without a local repo");
915 } else if (!strcmp(buf
.buf
, "list") || !prefixcmp(buf
.buf
, "list ")) {
916 int for_push
= !!strstr(buf
.buf
+ 4, "for-push");
917 output_refs(get_refs(for_push
));
919 } else if (!prefixcmp(buf
.buf
, "push ")) {
922 } else if (!prefixcmp(buf
.buf
, "option ")) {
923 char *name
= buf
.buf
+ strlen("option ");
924 char *value
= strchr(name
, ' ');
932 result
= set_option(name
, value
);
936 printf("error invalid value\n");
938 printf("unsupported\n");
941 } else if (!strcmp(buf
.buf
, "capabilities")) {
948 fprintf(stderr
, "Unknown command '%s'\n", buf
.buf
);