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Commit | Line | Data |
---|---|---|
f3a3214e LT |
1 | #include "cache.h" |
2 | #include "pkt-line.h" | |
fd89433d | 3 | #include "run-command.h" |
f3a3214e | 4 | |
74543a04 | 5 | char packet_buffer[LARGE_PACKET_MAX]; |
1e4cd68c | 6 | static const char *packet_trace_prefix = "git"; |
6aa30857 | 7 | static struct trace_key trace_packet = TRACE_KEY_INIT(PACKET); |
32359838 | 8 | static struct trace_key trace_pack = TRACE_KEY_INIT(PACKFILE); |
bbc30f99 JK |
9 | |
10 | void packet_trace_identity(const char *prog) | |
11 | { | |
12 | packet_trace_prefix = xstrdup(prog); | |
13 | } | |
14 | ||
fd89433d JK |
15 | static const char *get_trace_prefix(void) |
16 | { | |
17 | return in_async() ? "sideband" : packet_trace_prefix; | |
18 | } | |
19 | ||
32359838 JK |
20 | static int packet_trace_pack(const char *buf, unsigned int len, int sideband) |
21 | { | |
22 | if (!sideband) { | |
23 | trace_verbatim(&trace_pack, buf, len); | |
24 | return 1; | |
25 | } else if (len && *buf == '\1') { | |
26 | trace_verbatim(&trace_pack, buf + 1, len - 1); | |
27 | return 1; | |
28 | } else { | |
29 | /* it's another non-pack sideband */ | |
30 | return 0; | |
31 | } | |
32 | } | |
33 | ||
bbc30f99 JK |
34 | static void packet_trace(const char *buf, unsigned int len, int write) |
35 | { | |
36 | int i; | |
37 | struct strbuf out; | |
32359838 JK |
38 | static int in_pack, sideband; |
39 | ||
40 | if (!trace_want(&trace_packet) && !trace_want(&trace_pack)) | |
41 | return; | |
42 | ||
43 | if (in_pack) { | |
44 | if (packet_trace_pack(buf, len, sideband)) | |
45 | return; | |
46 | } else if (starts_with(buf, "PACK") || starts_with(buf, "\1PACK")) { | |
47 | in_pack = 1; | |
48 | sideband = *buf == '\1'; | |
49 | packet_trace_pack(buf, len, sideband); | |
50 | ||
51 | /* | |
52 | * Make a note in the human-readable trace that the pack data | |
53 | * started. | |
54 | */ | |
55 | buf = "PACK ..."; | |
56 | len = strlen(buf); | |
57 | } | |
bbc30f99 | 58 | |
6aa30857 | 59 | if (!trace_want(&trace_packet)) |
bbc30f99 JK |
60 | return; |
61 | ||
62 | /* +32 is just a guess for header + quoting */ | |
63 | strbuf_init(&out, len+32); | |
64 | ||
65 | strbuf_addf(&out, "packet: %12s%c ", | |
fd89433d | 66 | get_trace_prefix(), write ? '>' : '<'); |
bbc30f99 | 67 | |
32359838 JK |
68 | /* XXX we should really handle printable utf8 */ |
69 | for (i = 0; i < len; i++) { | |
70 | /* suppress newlines */ | |
71 | if (buf[i] == '\n') | |
72 | continue; | |
73 | if (buf[i] >= 0x20 && buf[i] <= 0x7e) | |
74 | strbuf_addch(&out, buf[i]); | |
75 | else | |
76 | strbuf_addf(&out, "\\%o", buf[i]); | |
bbc30f99 JK |
77 | } |
78 | ||
79 | strbuf_addch(&out, '\n'); | |
6aa30857 | 80 | trace_strbuf(&trace_packet, &out); |
bbc30f99 JK |
81 | strbuf_release(&out); |
82 | } | |
83 | ||
f3a3214e LT |
84 | /* |
85 | * If we buffered things up above (we don't, but we should), | |
86 | * we'd flush it here | |
87 | */ | |
88 | void packet_flush(int fd) | |
89 | { | |
bbc30f99 | 90 | packet_trace("0000", 4, 1); |
37c80012 JK |
91 | if (write_in_full(fd, "0000", 4) < 0) |
92 | die_errno(_("unable to write flush packet")); | |
f3a3214e LT |
93 | } |
94 | ||
a4cfd41c BW |
95 | void packet_delim(int fd) |
96 | { | |
97 | packet_trace("0001", 4, 1); | |
37c80012 JK |
98 | if (write_in_full(fd, "0001", 4) < 0) |
99 | die_errno(_("unable to write delim packet")); | |
a4cfd41c BW |
100 | } |
101 | ||
038ce90f LS |
102 | int packet_flush_gently(int fd) |
103 | { | |
104 | packet_trace("0000", 4, 1); | |
4c95e3dd | 105 | if (write_in_full(fd, "0000", 4) < 0) |
c60d7697 | 106 | return error(_("flush packet write failed")); |
4c95e3dd | 107 | return 0; |
038ce90f LS |
108 | } |
109 | ||
f5615d24 SP |
110 | void packet_buf_flush(struct strbuf *buf) |
111 | { | |
bbc30f99 | 112 | packet_trace("0000", 4, 1); |
f5615d24 SP |
113 | strbuf_add(buf, "0000", 4); |
114 | } | |
115 | ||
a4cfd41c BW |
116 | void packet_buf_delim(struct strbuf *buf) |
117 | { | |
118 | packet_trace("0001", 4, 1); | |
119 | strbuf_add(buf, "0001", 4); | |
120 | } | |
121 | ||
a97d0079 | 122 | void set_packet_header(char *buf, const int size) |
f3a3214e | 123 | { |
f3a3214e | 124 | static char hexchar[] = "0123456789abcdef"; |
2f60bdd1 LS |
125 | |
126 | #define hex(a) (hexchar[(a) & 15]) | |
127 | buf[0] = hex(size >> 12); | |
128 | buf[1] = hex(size >> 8); | |
129 | buf[2] = hex(size >> 4); | |
130 | buf[3] = hex(size); | |
131 | #undef hex | |
132 | } | |
133 | ||
bc2e795c JT |
134 | static void format_packet(struct strbuf *out, const char *prefix, |
135 | const char *fmt, va_list args) | |
2f60bdd1 | 136 | { |
8e9faf27 | 137 | size_t orig_len, n; |
f3a3214e | 138 | |
8e9faf27 JK |
139 | orig_len = out->len; |
140 | strbuf_addstr(out, "0000"); | |
bc2e795c | 141 | strbuf_addstr(out, prefix); |
8e9faf27 JK |
142 | strbuf_vaddf(out, fmt, args); |
143 | n = out->len - orig_len; | |
144 | ||
145 | if (n > LARGE_PACKET_MAX) | |
c60d7697 | 146 | die(_("protocol error: impossibly long line")); |
8e9faf27 | 147 | |
2f60bdd1 | 148 | set_packet_header(&out->buf[orig_len], n); |
8e9faf27 | 149 | packet_trace(out->buf + orig_len + 4, n - 4, 1); |
f5615d24 SP |
150 | } |
151 | ||
bc2e795c | 152 | static int packet_write_fmt_1(int fd, int gently, const char *prefix, |
70428d1a LS |
153 | const char *fmt, va_list args) |
154 | { | |
150efef1 | 155 | static struct strbuf buf = STRBUF_INIT; |
70428d1a | 156 | |
150efef1 | 157 | strbuf_reset(&buf); |
bc2e795c | 158 | format_packet(&buf, prefix, fmt, args); |
4c95e3dd JK |
159 | if (write_in_full(fd, buf.buf, buf.len) < 0) { |
160 | if (!gently) { | |
161 | check_pipe(errno); | |
c60d7697 | 162 | die_errno(_("packet write with format failed")); |
4c95e3dd | 163 | } |
c60d7697 | 164 | return error(_("packet write with format failed")); |
70428d1a | 165 | } |
4c95e3dd JK |
166 | |
167 | return 0; | |
70428d1a LS |
168 | } |
169 | ||
81c634e9 | 170 | void packet_write_fmt(int fd, const char *fmt, ...) |
f5615d24 SP |
171 | { |
172 | va_list args; | |
f5615d24 SP |
173 | |
174 | va_start(args, fmt); | |
bc2e795c | 175 | packet_write_fmt_1(fd, 0, "", fmt, args); |
70428d1a LS |
176 | va_end(args); |
177 | } | |
178 | ||
179 | int packet_write_fmt_gently(int fd, const char *fmt, ...) | |
180 | { | |
181 | int status; | |
182 | va_list args; | |
183 | ||
184 | va_start(args, fmt); | |
bc2e795c | 185 | status = packet_write_fmt_1(fd, 1, "", fmt, args); |
f5615d24 | 186 | va_end(args); |
70428d1a | 187 | return status; |
f3a3214e LT |
188 | } |
189 | ||
edfb780c LS |
190 | static int packet_write_gently(const int fd_out, const char *buf, size_t size) |
191 | { | |
192 | static char packet_write_buffer[LARGE_PACKET_MAX]; | |
193 | size_t packet_size; | |
194 | ||
195 | if (size > sizeof(packet_write_buffer) - 4) | |
c60d7697 | 196 | return error(_("packet write failed - data exceeds max packet size")); |
edfb780c LS |
197 | |
198 | packet_trace(buf, size, 1); | |
199 | packet_size = size + 4; | |
200 | set_packet_header(packet_write_buffer, packet_size); | |
201 | memcpy(packet_write_buffer + 4, buf, size); | |
4c95e3dd | 202 | if (write_in_full(fd_out, packet_write_buffer, packet_size) < 0) |
c60d7697 | 203 | return error(_("packet write failed")); |
4c95e3dd | 204 | return 0; |
edfb780c LS |
205 | } |
206 | ||
5d2124b3 BW |
207 | void packet_write(int fd_out, const char *buf, size_t size) |
208 | { | |
209 | if (packet_write_gently(fd_out, buf, size)) | |
c60d7697 | 210 | die_errno(_("packet write failed")); |
5d2124b3 BW |
211 | } |
212 | ||
f5615d24 SP |
213 | void packet_buf_write(struct strbuf *buf, const char *fmt, ...) |
214 | { | |
215 | va_list args; | |
f5615d24 SP |
216 | |
217 | va_start(args, fmt); | |
bc2e795c | 218 | format_packet(buf, "", fmt, args); |
f5615d24 | 219 | va_end(args); |
f5615d24 SP |
220 | } |
221 | ||
f1f4d8ac BW |
222 | void packet_buf_write_len(struct strbuf *buf, const char *data, size_t len) |
223 | { | |
224 | size_t orig_len, n; | |
225 | ||
226 | orig_len = buf->len; | |
227 | strbuf_addstr(buf, "0000"); | |
228 | strbuf_add(buf, data, len); | |
229 | n = buf->len - orig_len; | |
230 | ||
231 | if (n > LARGE_PACKET_MAX) | |
c60d7697 | 232 | die(_("protocol error: impossibly long line")); |
f1f4d8ac BW |
233 | |
234 | set_packet_header(&buf->buf[orig_len], n); | |
235 | packet_trace(data, len, 1); | |
236 | } | |
237 | ||
bb643d8b LS |
238 | int write_packetized_from_fd(int fd_in, int fd_out) |
239 | { | |
240 | static char buf[LARGE_PACKET_DATA_MAX]; | |
241 | int err = 0; | |
242 | ssize_t bytes_to_write; | |
243 | ||
244 | while (!err) { | |
245 | bytes_to_write = xread(fd_in, buf, sizeof(buf)); | |
246 | if (bytes_to_write < 0) | |
247 | return COPY_READ_ERROR; | |
248 | if (bytes_to_write == 0) | |
249 | break; | |
250 | err = packet_write_gently(fd_out, buf, bytes_to_write); | |
251 | } | |
252 | if (!err) | |
253 | err = packet_flush_gently(fd_out); | |
254 | return err; | |
255 | } | |
256 | ||
257 | int write_packetized_from_buf(const char *src_in, size_t len, int fd_out) | |
258 | { | |
259 | int err = 0; | |
260 | size_t bytes_written = 0; | |
261 | size_t bytes_to_write; | |
262 | ||
263 | while (!err) { | |
264 | if ((len - bytes_written) > LARGE_PACKET_DATA_MAX) | |
265 | bytes_to_write = LARGE_PACKET_DATA_MAX; | |
266 | else | |
267 | bytes_to_write = len - bytes_written; | |
268 | if (bytes_to_write == 0) | |
269 | break; | |
270 | err = packet_write_gently(fd_out, src_in + bytes_written, bytes_to_write); | |
271 | bytes_written += bytes_to_write; | |
272 | } | |
273 | if (!err) | |
274 | err = packet_flush_gently(fd_out); | |
275 | return err; | |
276 | } | |
277 | ||
4981fe75 JK |
278 | static int get_packet_data(int fd, char **src_buf, size_t *src_size, |
279 | void *dst, unsigned size, int options) | |
f3a3214e | 280 | { |
4981fe75 JK |
281 | ssize_t ret; |
282 | ||
283 | if (fd >= 0 && src_buf && *src_buf) | |
033abf97 | 284 | BUG("multiple sources given to packet_read"); |
4981fe75 JK |
285 | |
286 | /* Read up to "size" bytes from our source, whatever it is. */ | |
287 | if (src_buf && *src_buf) { | |
288 | ret = size < *src_size ? size : *src_size; | |
289 | memcpy(dst, *src_buf, ret); | |
290 | *src_buf += ret; | |
291 | *src_size -= ret; | |
292 | } else { | |
293 | ret = read_in_full(fd, dst, size); | |
294 | if (ret < 0) | |
c60d7697 | 295 | die_errno(_("read error")); |
4981fe75 JK |
296 | } |
297 | ||
298 | /* And complain if we didn't get enough bytes to satisfy the read. */ | |
61d36330 | 299 | if (ret != size) { |
03809429 | 300 | if (options & PACKET_READ_GENTLE_ON_EOF) |
46284dd1 HV |
301 | return -1; |
302 | ||
c60d7697 | 303 | die(_("the remote end hung up unexpectedly")); |
46284dd1 HV |
304 | } |
305 | ||
306 | return ret; | |
f3a3214e LT |
307 | } |
308 | ||
f5615d24 | 309 | static int packet_length(const char *linelen) |
f3a3214e | 310 | { |
d2330973 RS |
311 | int val = hex2chr(linelen); |
312 | return (val < 0) ? val : (val << 8) | hex2chr(linelen + 2); | |
f5615d24 SP |
313 | } |
314 | ||
2153d478 BW |
315 | enum packet_read_status packet_read_with_status(int fd, char **src_buffer, |
316 | size_t *src_len, char *buffer, | |
317 | unsigned size, int *pktlen, | |
318 | int options) | |
f5615d24 | 319 | { |
2153d478 | 320 | int len; |
f5615d24 SP |
321 | char linelen[4]; |
322 | ||
2153d478 BW |
323 | if (get_packet_data(fd, src_buffer, src_len, linelen, 4, options) < 0) { |
324 | *pktlen = -1; | |
325 | return PACKET_READ_EOF; | |
326 | } | |
327 | ||
f5615d24 | 328 | len = packet_length(linelen); |
2153d478 BW |
329 | |
330 | if (len < 0) { | |
c60d7697 | 331 | die(_("protocol error: bad line length character: %.4s"), linelen); |
2153d478 | 332 | } else if (!len) { |
bbc30f99 | 333 | packet_trace("0000", 4, 0); |
2153d478 BW |
334 | *pktlen = 0; |
335 | return PACKET_READ_FLUSH; | |
a4cfd41c BW |
336 | } else if (len == 1) { |
337 | packet_trace("0001", 4, 0); | |
338 | *pktlen = 0; | |
339 | return PACKET_READ_DELIM; | |
2153d478 | 340 | } else if (len < 4) { |
c60d7697 | 341 | die(_("protocol error: bad line length %d"), len); |
bbc30f99 | 342 | } |
2153d478 | 343 | |
f3a3214e | 344 | len -= 4; |
2153d478 | 345 | if ((unsigned)len >= size) |
c60d7697 | 346 | die(_("protocol error: bad line length %d"), len); |
2153d478 BW |
347 | |
348 | if (get_packet_data(fd, src_buffer, src_len, buffer, len, options) < 0) { | |
349 | *pktlen = -1; | |
350 | return PACKET_READ_EOF; | |
351 | } | |
819b929d | 352 | |
2d103c31 MS |
353 | if ((options & PACKET_READ_DIE_ON_ERR_PACKET) && |
354 | starts_with(buffer, "ERR ")) | |
355 | die(_("remote error: %s"), buffer + 4); | |
356 | ||
819b929d JK |
357 | if ((options & PACKET_READ_CHOMP_NEWLINE) && |
358 | len && buffer[len-1] == '\n') | |
359 | len--; | |
360 | ||
f3a3214e | 361 | buffer[len] = 0; |
bbc30f99 | 362 | packet_trace(buffer, len, 0); |
2153d478 BW |
363 | *pktlen = len; |
364 | return PACKET_READ_NORMAL; | |
365 | } | |
366 | ||
367 | int packet_read(int fd, char **src_buffer, size_t *src_len, | |
368 | char *buffer, unsigned size, int options) | |
369 | { | |
370 | int pktlen = -1; | |
371 | ||
372 | packet_read_with_status(fd, src_buffer, src_len, buffer, size, | |
373 | &pktlen, options); | |
374 | ||
375 | return pktlen; | |
f3a3214e | 376 | } |
f5615d24 | 377 | |
4981fe75 JK |
378 | static char *packet_read_line_generic(int fd, |
379 | char **src, size_t *src_len, | |
380 | int *dst_len) | |
46284dd1 | 381 | { |
4981fe75 JK |
382 | int len = packet_read(fd, src, src_len, |
383 | packet_buffer, sizeof(packet_buffer), | |
74543a04 | 384 | PACKET_READ_CHOMP_NEWLINE); |
4981fe75 JK |
385 | if (dst_len) |
386 | *dst_len = len; | |
974b50c5 | 387 | return (len > 0) ? packet_buffer : NULL; |
46284dd1 HV |
388 | } |
389 | ||
4981fe75 | 390 | char *packet_read_line(int fd, int *len_p) |
f5615d24 | 391 | { |
4981fe75 JK |
392 | return packet_read_line_generic(fd, NULL, NULL, len_p); |
393 | } | |
f5615d24 | 394 | |
825b9226 BP |
395 | int packet_read_line_gently(int fd, int *dst_len, char **dst_line) |
396 | { | |
397 | int len = packet_read(fd, NULL, NULL, | |
398 | packet_buffer, sizeof(packet_buffer), | |
399 | PACKET_READ_CHOMP_NEWLINE|PACKET_READ_GENTLE_ON_EOF); | |
400 | if (dst_len) | |
401 | *dst_len = len; | |
402 | if (dst_line) | |
403 | *dst_line = (len > 0) ? packet_buffer : NULL; | |
404 | return len; | |
405 | } | |
406 | ||
4981fe75 JK |
407 | char *packet_read_line_buf(char **src, size_t *src_len, int *dst_len) |
408 | { | |
409 | return packet_read_line_generic(-1, src, src_len, dst_len); | |
f5615d24 | 410 | } |
bb643d8b LS |
411 | |
412 | ssize_t read_packetized_to_strbuf(int fd_in, struct strbuf *sb_out) | |
413 | { | |
414 | int packet_len; | |
415 | ||
416 | size_t orig_len = sb_out->len; | |
417 | size_t orig_alloc = sb_out->alloc; | |
418 | ||
419 | for (;;) { | |
420 | strbuf_grow(sb_out, LARGE_PACKET_DATA_MAX); | |
421 | packet_len = packet_read(fd_in, NULL, NULL, | |
422 | /* strbuf_grow() above always allocates one extra byte to | |
423 | * store a '\0' at the end of the string. packet_read() | |
424 | * writes a '\0' extra byte at the end, too. Let it know | |
425 | * that there is already room for the extra byte. | |
426 | */ | |
427 | sb_out->buf + sb_out->len, LARGE_PACKET_DATA_MAX+1, | |
428 | PACKET_READ_GENTLE_ON_EOF); | |
429 | if (packet_len <= 0) | |
430 | break; | |
431 | sb_out->len += packet_len; | |
432 | } | |
433 | ||
434 | if (packet_len < 0) { | |
435 | if (orig_alloc == 0) | |
436 | strbuf_release(sb_out); | |
437 | else | |
438 | strbuf_setlen(sb_out, orig_len); | |
439 | return packet_len; | |
440 | } | |
441 | return sb_out->len - orig_len; | |
442 | } | |
77dabc14 | 443 | |
fbd76cd4 JT |
444 | int recv_sideband(const char *me, int in_stream, int out) |
445 | { | |
446 | char buf[LARGE_PACKET_MAX + 1]; | |
447 | int len; | |
448 | struct strbuf scratch = STRBUF_INIT; | |
449 | enum sideband_type sideband_type; | |
450 | ||
451 | while (1) { | |
452 | len = packet_read(in_stream, NULL, NULL, buf, LARGE_PACKET_MAX, | |
453 | 0); | |
0bbc0bc5 | 454 | if (!demultiplex_sideband(me, buf, len, 0, &scratch, |
fbd76cd4 JT |
455 | &sideband_type)) |
456 | continue; | |
457 | switch (sideband_type) { | |
458 | case SIDEBAND_PRIMARY: | |
459 | write_or_die(out, buf + 1, len - 1); | |
460 | break; | |
461 | default: /* errors: message already written */ | |
462 | return sideband_type; | |
463 | } | |
464 | } | |
465 | } | |
466 | ||
77dabc14 BW |
467 | /* Packet Reader Functions */ |
468 | void packet_reader_init(struct packet_reader *reader, int fd, | |
469 | char *src_buffer, size_t src_len, | |
470 | int options) | |
471 | { | |
472 | memset(reader, 0, sizeof(*reader)); | |
473 | ||
474 | reader->fd = fd; | |
475 | reader->src_buffer = src_buffer; | |
476 | reader->src_len = src_len; | |
477 | reader->buffer = packet_buffer; | |
478 | reader->buffer_size = sizeof(packet_buffer); | |
479 | reader->options = options; | |
0bbc0bc5 | 480 | reader->me = "git"; |
77dabc14 BW |
481 | } |
482 | ||
483 | enum packet_read_status packet_reader_read(struct packet_reader *reader) | |
484 | { | |
0bbc0bc5 JT |
485 | struct strbuf scratch = STRBUF_INIT; |
486 | ||
77dabc14 BW |
487 | if (reader->line_peeked) { |
488 | reader->line_peeked = 0; | |
489 | return reader->status; | |
490 | } | |
491 | ||
0bbc0bc5 JT |
492 | /* |
493 | * Consume all progress packets until a primary payload packet is | |
494 | * received | |
495 | */ | |
496 | while (1) { | |
497 | enum sideband_type sideband_type; | |
498 | reader->status = packet_read_with_status(reader->fd, | |
499 | &reader->src_buffer, | |
500 | &reader->src_len, | |
501 | reader->buffer, | |
502 | reader->buffer_size, | |
503 | &reader->pktlen, | |
504 | reader->options); | |
505 | if (!reader->use_sideband) | |
506 | break; | |
507 | if (demultiplex_sideband(reader->me, reader->buffer, | |
508 | reader->pktlen, 1, &scratch, | |
509 | &sideband_type)) | |
510 | break; | |
511 | } | |
77dabc14 BW |
512 | |
513 | if (reader->status == PACKET_READ_NORMAL) | |
0bbc0bc5 JT |
514 | /* Skip the sideband designator if sideband is used */ |
515 | reader->line = reader->use_sideband ? | |
516 | reader->buffer + 1 : reader->buffer; | |
77dabc14 BW |
517 | else |
518 | reader->line = NULL; | |
519 | ||
520 | return reader->status; | |
521 | } | |
522 | ||
523 | enum packet_read_status packet_reader_peek(struct packet_reader *reader) | |
524 | { | |
525 | /* Only allow peeking a single line */ | |
526 | if (reader->line_peeked) | |
527 | return reader->status; | |
528 | ||
529 | /* Peek a line by reading it and setting peeked flag */ | |
530 | packet_reader_read(reader); | |
531 | reader->line_peeked = 1; | |
532 | return reader->status; | |
533 | } | |
bc2e795c JT |
534 | |
535 | void packet_writer_init(struct packet_writer *writer, int dest_fd) | |
536 | { | |
537 | writer->dest_fd = dest_fd; | |
0bbc0bc5 | 538 | writer->use_sideband = 0; |
bc2e795c JT |
539 | } |
540 | ||
541 | void packet_writer_write(struct packet_writer *writer, const char *fmt, ...) | |
542 | { | |
543 | va_list args; | |
544 | ||
545 | va_start(args, fmt); | |
0bbc0bc5 JT |
546 | packet_write_fmt_1(writer->dest_fd, 0, |
547 | writer->use_sideband ? "\001" : "", fmt, args); | |
bc2e795c JT |
548 | va_end(args); |
549 | } | |
550 | ||
551 | void packet_writer_error(struct packet_writer *writer, const char *fmt, ...) | |
552 | { | |
553 | va_list args; | |
554 | ||
555 | va_start(args, fmt); | |
0bbc0bc5 JT |
556 | packet_write_fmt_1(writer->dest_fd, 0, |
557 | writer->use_sideband ? "\003" : "ERR ", fmt, args); | |
bc2e795c JT |
558 | va_end(args); |
559 | } | |
560 | ||
561 | void packet_writer_delim(struct packet_writer *writer) | |
562 | { | |
563 | packet_delim(writer->dest_fd); | |
564 | } | |
565 | ||
566 | void packet_writer_flush(struct packet_writer *writer) | |
567 | { | |
568 | packet_flush(writer->dest_fd); | |
569 | } |