2 93658fb9 2020-03-18 stsp * Copyright (c) 2019 Ori Bernstein <ori@openbsd.org>
4 93658fb9 2020-03-18 stsp * Permission to use, copy, modify, and distribute this software for any
5 93658fb9 2020-03-18 stsp * purpose with or without fee is hereby granted, provided that the above
6 93658fb9 2020-03-18 stsp * copyright notice and this permission notice appear in all copies.
8 93658fb9 2020-03-18 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 93658fb9 2020-03-18 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 93658fb9 2020-03-18 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 93658fb9 2020-03-18 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 93658fb9 2020-03-18 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 93658fb9 2020-03-18 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 93658fb9 2020-03-18 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 93658fb9 2020-03-18 stsp #include <sys/types.h>
18 93658fb9 2020-03-18 stsp #include <sys/queue.h>
19 93658fb9 2020-03-18 stsp #include <sys/uio.h>
20 93658fb9 2020-03-18 stsp #include <sys/time.h>
21 93658fb9 2020-03-18 stsp #include <sys/stat.h>
22 93658fb9 2020-03-18 stsp #include <sys/syslimits.h>
24 93658fb9 2020-03-18 stsp #include <stdint.h>
25 93658fb9 2020-03-18 stsp #include <errno.h>
26 93658fb9 2020-03-18 stsp #include <imsg.h>
27 93658fb9 2020-03-18 stsp #include <limits.h>
28 93658fb9 2020-03-18 stsp #include <signal.h>
29 93658fb9 2020-03-18 stsp #include <stdio.h>
30 93658fb9 2020-03-18 stsp #include <stdlib.h>
31 93658fb9 2020-03-18 stsp #include <string.h>
32 93658fb9 2020-03-18 stsp #include <ctype.h>
33 93658fb9 2020-03-18 stsp #include <sha1.h>
34 93658fb9 2020-03-18 stsp #include <fcntl.h>
35 93658fb9 2020-03-18 stsp #include <zlib.h>
36 93658fb9 2020-03-18 stsp #include <err.h>
38 93658fb9 2020-03-18 stsp #include "got_error.h"
39 93658fb9 2020-03-18 stsp #include "got_object.h"
40 abe0f35f 2020-03-18 stsp #include "got_path.h"
41 8a29a085 2020-03-18 stsp #include "got_version.h"
42 f1c6967f 2020-03-19 stsp #include "got_fetch.h"
43 659e7fbd 2020-03-20 stsp #include "got_reference.h"
45 93658fb9 2020-03-18 stsp #include "got_lib_sha1.h"
46 93658fb9 2020-03-18 stsp #include "got_lib_delta.h"
47 93658fb9 2020-03-18 stsp #include "got_lib_object.h"
48 93658fb9 2020-03-18 stsp #include "got_lib_object_parse.h"
49 93658fb9 2020-03-18 stsp #include "got_lib_privsep.h"
50 0872c0b0 2020-03-18 stsp #include "got_lib_pack.h"
52 8a29a085 2020-03-18 stsp #ifndef nitems
53 8a29a085 2020-03-18 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
56 93658fb9 2020-03-18 stsp struct got_object *indexed;
57 858b0dfb 2020-03-20 stsp static int chattygot;
58 93658fb9 2020-03-18 stsp static struct got_object_id zhash = {.sha1={0}};
60 fe53745c 2020-03-18 stsp static const struct got_error *
61 fe53745c 2020-03-18 stsp readn(ssize_t *off, int fd, void *buf, size_t n)
66 fe53745c 2020-03-18 stsp while (*off != n) {
67 fe53745c 2020-03-18 stsp r = read(fd, buf + *off, n - *off);
68 fe53745c 2020-03-18 stsp if (r == -1)
69 fe53745c 2020-03-18 stsp return got_error_from_errno("read");
71 fe53745c 2020-03-18 stsp return NULL;
74 fe53745c 2020-03-18 stsp return NULL;
77 38c670f1 2020-03-18 stsp static const struct got_error *
78 93658fb9 2020-03-18 stsp flushpkt(int fd)
82 2690194b 2020-03-21 stsp if (chattygot > 1)
83 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: writepkt: 0000\n", getprogname());
85 38c670f1 2020-03-18 stsp w = write(fd, "0000", 4);
86 38c670f1 2020-03-18 stsp if (w == -1)
87 38c670f1 2020-03-18 stsp return got_error_from_errno("write");
89 38c670f1 2020-03-18 stsp return got_error(GOT_ERR_IO);
90 38c670f1 2020-03-18 stsp return NULL;
94 531c3985 2020-03-18 stsp * Packet header contains a 4-byte hexstring which specifies the length
95 531c3985 2020-03-18 stsp * of data which follows.
97 fe53745c 2020-03-18 stsp static const struct got_error *
98 531c3985 2020-03-18 stsp read_pkthdr(int *datalen, int fd)
100 531c3985 2020-03-18 stsp static const struct got_error *err = NULL;
101 4dc8ee09 2020-03-18 stsp char lenstr[5];
107 531c3985 2020-03-18 stsp *datalen = 0;
109 4dc8ee09 2020-03-18 stsp err = readn(&r, fd, lenstr, 4);
111 fe53745c 2020-03-18 stsp return err;
112 858b0dfb 2020-03-20 stsp if (r == 0) {
113 858b0dfb 2020-03-20 stsp /* implicit "0000" */
114 2690194b 2020-03-21 stsp if (chattygot > 1)
115 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: readpkt: 0000\n", getprogname());
116 531c3985 2020-03-18 stsp return NULL;
118 4dc8ee09 2020-03-18 stsp if (r != 4)
119 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
120 531c3985 2020-03-18 stsp "wrong packet header length");
122 4dc8ee09 2020-03-18 stsp lenstr[4] = '\0';
123 54d1a70f 2020-03-18 stsp for (i = 0; i < 4; i++) {
124 858b0dfb 2020-03-20 stsp if (!isprint((unsigned char)lenstr[i]))
125 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
126 858b0dfb 2020-03-20 stsp "unprintable character in packet length field");
128 858b0dfb 2020-03-20 stsp for (i = 0; i < 4; i++) {
129 858b0dfb 2020-03-20 stsp if (!isxdigit((unsigned char)lenstr[i])) {
130 858b0dfb 2020-03-20 stsp if (chattygot)
131 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: bad length: '%s'\n",
132 858b0dfb 2020-03-20 stsp getprogname(), lenstr);
133 858b0dfb 2020-03-20 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
134 531c3985 2020-03-18 stsp "packet length not specified in hex");
138 4dc8ee09 2020-03-18 stsp len = strtol(lenstr, &e, 16);
139 4dc8ee09 2020-03-18 stsp if (lenstr[0] == '\0' || *e != '\0')
140 4dc8ee09 2020-03-18 stsp return got_error(GOT_ERR_BAD_PACKET);
141 4dc8ee09 2020-03-18 stsp if (errno == ERANGE && (len == LONG_MAX || len == LONG_MIN))
142 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET, "bad packet length");
143 4dc8ee09 2020-03-18 stsp if (len > INT_MAX || len < INT_MIN)
144 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET, "bad packet length");
146 531c3985 2020-03-18 stsp if (n == 0)
147 fe53745c 2020-03-18 stsp return NULL;
148 4dc8ee09 2020-03-18 stsp if (n <= 4)
149 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET, "packet too short");
152 531c3985 2020-03-18 stsp *datalen = n;
153 531c3985 2020-03-18 stsp return NULL;
156 531c3985 2020-03-18 stsp static const struct got_error *
157 531c3985 2020-03-18 stsp readpkt(int *outlen, int fd, char *buf, int buflen)
159 531c3985 2020-03-18 stsp const struct got_error *err = NULL;
160 858b0dfb 2020-03-20 stsp int datalen, i;
163 531c3985 2020-03-18 stsp err = read_pkthdr(&datalen, fd);
165 531c3985 2020-03-18 stsp return err;
167 531c3985 2020-03-18 stsp if (datalen > buflen)
168 fe53745c 2020-03-18 stsp return got_error(GOT_ERR_NO_SPACE);
170 531c3985 2020-03-18 stsp err = readn(&n, fd, buf, datalen);
172 fe53745c 2020-03-18 stsp return err;
173 531c3985 2020-03-18 stsp if (n != datalen)
174 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET, "short packet");
176 2690194b 2020-03-21 stsp if (chattygot > 1) {
177 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: readpkt: %zd:\t", getprogname(), n);
178 858b0dfb 2020-03-20 stsp for (i = 0; i < n; i++) {
179 858b0dfb 2020-03-20 stsp if (isprint(buf[i]))
180 858b0dfb 2020-03-20 stsp fputc(buf[i], stderr);
182 858b0dfb 2020-03-20 stsp fprintf(stderr, "[0x%.2x]", buf[i]);
184 858b0dfb 2020-03-20 stsp fputc('\n', stderr);
187 fe53745c 2020-03-18 stsp *outlen = n;
188 fe53745c 2020-03-18 stsp return NULL;
191 344e4747 2020-03-18 stsp static const struct got_error *
192 93658fb9 2020-03-18 stsp writepkt(int fd, char *buf, int nbuf)
194 93658fb9 2020-03-18 stsp char len[5];
198 93658fb9 2020-03-18 stsp if (snprintf(len, sizeof(len), "%04x", nbuf + 4) >= sizeof(len))
199 344e4747 2020-03-18 stsp return got_error(GOT_ERR_NO_SPACE);
200 344e4747 2020-03-18 stsp w = write(fd, len, 4);
201 344e4747 2020-03-18 stsp if (w == -1)
202 344e4747 2020-03-18 stsp return got_error_from_errno("write");
203 344e4747 2020-03-18 stsp if (w != 4)
204 344e4747 2020-03-18 stsp return got_error(GOT_ERR_IO);
205 344e4747 2020-03-18 stsp w = write(fd, buf, nbuf);
206 344e4747 2020-03-18 stsp if (w == -1)
207 344e4747 2020-03-18 stsp return got_error_from_errno("write");
208 344e4747 2020-03-18 stsp if (w != nbuf)
209 344e4747 2020-03-18 stsp return got_error(GOT_ERR_IO);
210 2690194b 2020-03-21 stsp if (chattygot > 1) {
211 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: writepkt: %s:\t", getprogname(), len);
212 858b0dfb 2020-03-20 stsp for (i = 0; i < nbuf; i++) {
213 858b0dfb 2020-03-20 stsp if (isprint(buf[i]))
214 858b0dfb 2020-03-20 stsp fputc(buf[i], stderr);
216 858b0dfb 2020-03-20 stsp fprintf(stderr, "[0x%.2x]", buf[i]);
218 858b0dfb 2020-03-20 stsp fputc('\n', stderr);
220 344e4747 2020-03-18 stsp return NULL;
223 7848a0e1 2020-03-19 stsp static void
224 7848a0e1 2020-03-19 stsp match_remote_ref(struct got_pathlist_head *have_refs,
225 7848a0e1 2020-03-19 stsp struct got_object_id *my_id, char *refname)
227 33501562 2020-03-18 stsp struct got_pathlist_entry *pe;
229 7848a0e1 2020-03-19 stsp /* XXX zero-hash signifies we don't have this ref;
230 7848a0e1 2020-03-19 stsp * we should use a flag instead */
231 7848a0e1 2020-03-19 stsp memset(my_id, 0, sizeof(*my_id));
233 33501562 2020-03-18 stsp TAILQ_FOREACH(pe, have_refs, entry) {
234 7848a0e1 2020-03-19 stsp struct got_object_id *id = pe->data;
235 7848a0e1 2020-03-19 stsp if (strcmp(pe->path, refname) == 0) {
236 7848a0e1 2020-03-19 stsp memcpy(my_id, id, sizeof(*my_id));
243 659e7fbd 2020-03-20 stsp match_branch(const char *branch, const char *wanted_branch)
245 659e7fbd 2020-03-20 stsp if (strncmp(branch, "refs/heads/", 11) != 0)
248 659e7fbd 2020-03-20 stsp if (strncmp(wanted_branch, "refs/heads/", 11) == 0)
249 659e7fbd 2020-03-20 stsp wanted_branch += 11;
251 659e7fbd 2020-03-20 stsp return (strcmp(branch + 11, wanted_branch) == 0);
255 0e4002ca 2020-03-21 stsp match_wanted_ref(const char *refname, const char *wanted_ref)
257 0e4002ca 2020-03-21 stsp if (strncmp(refname, "refs/", 5) != 0)
259 0e4002ca 2020-03-21 stsp refname += 5;
262 0e4002ca 2020-03-21 stsp * Prevent fetching of references that won't make any
263 0e4002ca 2020-03-21 stsp * sense outside of the remote repository's context.
265 0e4002ca 2020-03-21 stsp if (strncmp(refname, "got/", 4) == 0)
267 0e4002ca 2020-03-21 stsp if (strncmp(refname, "remotes/", 8) == 0)
270 0e4002ca 2020-03-21 stsp if (strncmp(wanted_ref, "refs/", 5) == 0)
271 0e4002ca 2020-03-21 stsp wanted_ref += 5;
273 0e4002ca 2020-03-21 stsp /* Allow prefix match. */
274 0e4002ca 2020-03-21 stsp if (got_path_is_child(refname, wanted_ref, strlen(wanted_ref)))
277 0e4002ca 2020-03-21 stsp /* Allow exact match. */
278 0e4002ca 2020-03-21 stsp return (strcmp(refname, wanted_ref) == 0);
281 0d0a341c 2020-03-18 stsp static const struct got_error *
282 00cd0e0a 2020-03-18 stsp tokenize_refline(char **tokens, char *line, int len, int maxtokens)
284 0d0a341c 2020-03-18 stsp const struct got_error *err = NULL;
286 0d0a341c 2020-03-18 stsp size_t i, n = 0;
288 0d0a341c 2020-03-18 stsp for (i = 0; i < maxtokens; i++)
289 0d0a341c 2020-03-18 stsp tokens[i] = NULL;
291 0d0a341c 2020-03-18 stsp for (i = 0; n < len && i < maxtokens; i++) {
292 0d0a341c 2020-03-18 stsp while (isspace(*line)) {
297 0d0a341c 2020-03-18 stsp while (*line != '\0' &&
298 0d0a341c 2020-03-18 stsp (!isspace(*line) || i == maxtokens - 1)) {
302 0d0a341c 2020-03-18 stsp tokens[i] = strndup(p, line - p);
303 0d0a341c 2020-03-18 stsp if (tokens[i] == NULL) {
304 0d0a341c 2020-03-18 stsp err = got_error_from_errno("strndup");
307 0d0a341c 2020-03-18 stsp /* Skip \0 field-delimiter at end of token. */
308 0d0a341c 2020-03-18 stsp while (line[0] == '\0' && n < len) {
313 0d0a341c 2020-03-18 stsp if (i <= 2)
314 0d0a341c 2020-03-18 stsp err = got_error(GOT_ERR_NOT_REF);
318 0d0a341c 2020-03-18 stsp for (j = 0; j < i; j++)
319 0d0a341c 2020-03-18 stsp free(tokens[j]);
320 0d0a341c 2020-03-18 stsp tokens[j] = NULL;
322 0d0a341c 2020-03-18 stsp return err;
325 00cd0e0a 2020-03-18 stsp static const struct got_error *
326 00cd0e0a 2020-03-18 stsp parse_refline(char **id_str, char **refname, char **server_capabilities,
327 00cd0e0a 2020-03-18 stsp char *line, int len)
329 00cd0e0a 2020-03-18 stsp const struct got_error *err = NULL;
330 00cd0e0a 2020-03-18 stsp char *tokens[3];
332 00cd0e0a 2020-03-18 stsp err = tokenize_refline(tokens, line, len, nitems(tokens));
334 00cd0e0a 2020-03-18 stsp return err;
336 00cd0e0a 2020-03-18 stsp if (tokens[0])
337 00cd0e0a 2020-03-18 stsp *id_str = tokens[0];
338 00cd0e0a 2020-03-18 stsp if (tokens[1])
339 00cd0e0a 2020-03-18 stsp *refname = tokens[1];
340 2690194b 2020-03-21 stsp if (tokens[2]) {
342 00cd0e0a 2020-03-18 stsp *server_capabilities = tokens[2];
343 2690194b 2020-03-21 stsp p = strrchr(*server_capabilities, '\n');
348 00cd0e0a 2020-03-18 stsp return NULL;
351 531c3985 2020-03-18 stsp #define GOT_CAPA_AGENT "agent"
352 531c3985 2020-03-18 stsp #define GOT_CAPA_OFS_DELTA "ofs-delta"
353 531c3985 2020-03-18 stsp #define GOT_CAPA_SIDE_BAND_64K "side-band-64k"
355 531c3985 2020-03-18 stsp #define GOT_SIDEBAND_PACKFILE_DATA 1
356 531c3985 2020-03-18 stsp #define GOT_SIDEBAND_PROGRESS_INFO 2
357 531c3985 2020-03-18 stsp #define GOT_SIDEBAND_ERROR_INFO 3
360 8a29a085 2020-03-18 stsp struct got_capability {
361 8a29a085 2020-03-18 stsp const char *key;
362 8a29a085 2020-03-18 stsp const char *value;
364 8a29a085 2020-03-18 stsp static const struct got_capability got_capabilities[] = {
365 531c3985 2020-03-18 stsp { GOT_CAPA_AGENT, "got/" GOT_VERSION_STR },
366 531c3985 2020-03-18 stsp { GOT_CAPA_OFS_DELTA, NULL },
367 531c3985 2020-03-18 stsp { GOT_CAPA_SIDE_BAND_64K, NULL },
370 8a29a085 2020-03-18 stsp static const struct got_error *
371 8a29a085 2020-03-18 stsp match_capability(char **my_capabilities, const char *capa,
372 8a29a085 2020-03-18 stsp const struct got_capability *mycapa)
374 8a29a085 2020-03-18 stsp char *equalsign;
377 8a29a085 2020-03-18 stsp equalsign = strchr(capa, '=');
378 8a29a085 2020-03-18 stsp if (equalsign) {
379 8a29a085 2020-03-18 stsp if (strncmp(capa, mycapa->key, equalsign - capa) != 0)
380 8a29a085 2020-03-18 stsp return NULL;
382 8a29a085 2020-03-18 stsp if (strcmp(capa, mycapa->key) != 0)
383 8a29a085 2020-03-18 stsp return NULL;
386 406106ee 2020-03-20 stsp if (asprintf(&s, "%s %s%s%s",
387 8a29a085 2020-03-18 stsp *my_capabilities != NULL ? *my_capabilities : "",
388 8a29a085 2020-03-18 stsp mycapa->key,
389 8a29a085 2020-03-18 stsp mycapa->value != NULL ? "=" : "",
390 8a29a085 2020-03-18 stsp mycapa->value != NULL? mycapa->value : "") == -1)
391 8a29a085 2020-03-18 stsp return got_error_from_errno("asprintf");
393 8a29a085 2020-03-18 stsp free(*my_capabilities);
394 8a29a085 2020-03-18 stsp *my_capabilities = s;
395 8a29a085 2020-03-18 stsp return NULL;
398 9ff10419 2020-03-18 stsp static const struct got_error *
399 01538ce4 2020-03-18 stsp add_symref(struct got_pathlist_head *symrefs, char *capa)
401 8a29a085 2020-03-18 stsp const struct got_error *err = NULL;
402 abe0f35f 2020-03-18 stsp char *colon, *name = NULL, *target = NULL;
404 abe0f35f 2020-03-18 stsp /* Need at least "A:B" */
405 abe0f35f 2020-03-18 stsp if (strlen(capa) < 3)
406 abe0f35f 2020-03-18 stsp return NULL;
408 abe0f35f 2020-03-18 stsp colon = strchr(capa, ':');
409 abe0f35f 2020-03-18 stsp if (colon == NULL)
410 abe0f35f 2020-03-18 stsp return NULL;
412 abe0f35f 2020-03-18 stsp *colon = '\0';
413 abe0f35f 2020-03-18 stsp name = strdup(capa);
414 abe0f35f 2020-03-18 stsp if (name == NULL)
415 abe0f35f 2020-03-18 stsp return got_error_from_errno("strdup");
417 abe0f35f 2020-03-18 stsp target = strdup(colon + 1);
418 abe0f35f 2020-03-18 stsp if (target == NULL) {
419 abe0f35f 2020-03-18 stsp err = got_error_from_errno("strdup");
423 abe0f35f 2020-03-18 stsp /* We can't validate the ref itself here. The main process will. */
424 abe0f35f 2020-03-18 stsp err = got_pathlist_append(symrefs, name, target);
427 abe0f35f 2020-03-18 stsp free(name);
428 abe0f35f 2020-03-18 stsp free(target);
430 abe0f35f 2020-03-18 stsp return err;
433 abe0f35f 2020-03-18 stsp static const struct got_error *
434 abe0f35f 2020-03-18 stsp match_capabilities(char **my_capabilities, struct got_pathlist_head *symrefs,
435 abe0f35f 2020-03-18 stsp char *server_capabilities)
437 abe0f35f 2020-03-18 stsp const struct got_error *err = NULL;
438 abe0f35f 2020-03-18 stsp char *capa, *equalsign;
441 8a29a085 2020-03-18 stsp *my_capabilities = NULL;
443 8a29a085 2020-03-18 stsp capa = strsep(&server_capabilities, " ");
444 8a29a085 2020-03-18 stsp if (capa == NULL)
445 8a29a085 2020-03-18 stsp return NULL;
447 abe0f35f 2020-03-18 stsp equalsign = strchr(capa, '=');
448 abe0f35f 2020-03-18 stsp if (equalsign != NULL &&
449 abe0f35f 2020-03-18 stsp strncmp(capa, "symref", equalsign - capa) == 0) {
450 abe0f35f 2020-03-18 stsp err = add_symref(symrefs, equalsign + 1);
456 8a29a085 2020-03-18 stsp for (i = 0; i < nitems(got_capabilities); i++) {
457 8a29a085 2020-03-18 stsp err = match_capability(my_capabilities,
458 8a29a085 2020-03-18 stsp capa, &got_capabilities[i]);
462 8a29a085 2020-03-18 stsp } while (capa);
464 406106ee 2020-03-20 stsp if (*my_capabilities == NULL) {
465 406106ee 2020-03-20 stsp *my_capabilities = strdup("");
466 406106ee 2020-03-20 stsp if (*my_capabilities == NULL)
467 406106ee 2020-03-20 stsp err = got_error_from_errno("strdup");
469 8a29a085 2020-03-18 stsp return err;
472 e70bf110 2020-03-22 stsp static const struct got_error *
473 e70bf110 2020-03-22 stsp send_fetch_server_progress(struct imsgbuf *ibuf, const char *msg, size_t msglen)
475 e70bf110 2020-03-22 stsp if (msglen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
476 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
478 e70bf110 2020-03-22 stsp if (msglen == 0)
479 e70bf110 2020-03-22 stsp return NULL;
481 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_SERVER_PROGRESS, 0, 0, -1,
482 e70bf110 2020-03-22 stsp msg, msglen) == -1)
483 e70bf110 2020-03-22 stsp return got_error_from_errno(
484 e70bf110 2020-03-22 stsp "imsg_compose FETCH_SERVER_PROGRESS");
486 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
489 531c3985 2020-03-18 stsp static const struct got_error *
490 e70bf110 2020-03-22 stsp send_fetch_download_progress(struct imsgbuf *ibuf, off_t bytes)
492 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DOWNLOAD_PROGRESS, 0, 0, -1,
493 e70bf110 2020-03-22 stsp &bytes, sizeof(bytes)) == -1)
494 e70bf110 2020-03-22 stsp return got_error_from_errno(
495 e70bf110 2020-03-22 stsp "imsg_compose FETCH_DOWNLOAD_PROGRESS");
497 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
500 e70bf110 2020-03-22 stsp static const struct got_error *
501 1d72a2a0 2020-03-24 stsp send_fetch_done(struct imsgbuf *ibuf, uint8_t *pack_sha1)
503 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DONE, 0, 0, -1,
504 1d72a2a0 2020-03-24 stsp pack_sha1, SHA1_DIGEST_LENGTH) == -1)
505 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_compose FETCH");
506 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
511 e70bf110 2020-03-22 stsp static const struct got_error *
512 531c3985 2020-03-18 stsp fetch_progress(struct imsgbuf *ibuf, const char *buf, size_t len)
516 531c3985 2020-03-18 stsp if (len == 0)
517 531c3985 2020-03-18 stsp return NULL;
520 531c3985 2020-03-18 stsp * Truncate messages which exceed the maximum imsg payload size.
521 531c3985 2020-03-18 stsp * Server may send up to 64k.
523 531c3985 2020-03-18 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
524 531c3985 2020-03-18 stsp len = MAX_IMSGSIZE - IMSG_HEADER_SIZE;
526 531c3985 2020-03-18 stsp /* Only allow printable ASCII. */
527 531c3985 2020-03-18 stsp for (i = 0; i < len; i++) {
528 531c3985 2020-03-18 stsp if (isprint((unsigned char)buf[i]) ||
529 531c3985 2020-03-18 stsp isspace((unsigned char)buf[i]))
531 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
532 531c3985 2020-03-18 stsp "non-printable progress message received from server");
535 e70bf110 2020-03-22 stsp return send_fetch_server_progress(ibuf, buf, len);
538 8a29a085 2020-03-18 stsp static const struct got_error *
539 531c3985 2020-03-18 stsp fetch_error(const char *buf, size_t len)
541 531c3985 2020-03-18 stsp static char msg[1024];
544 531c3985 2020-03-18 stsp for (i = 0; i < len && i < sizeof(msg) - 1; i++) {
545 531c3985 2020-03-18 stsp if (!isprint(buf[i]))
546 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
547 531c3985 2020-03-18 stsp "non-printable error message received from server");
548 531c3985 2020-03-18 stsp msg[i] = buf[i];
550 531c3985 2020-03-18 stsp msg[i] = '\0';
551 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_FETCH_FAILED, msg);
554 531c3985 2020-03-18 stsp static const struct got_error *
555 e70bf110 2020-03-22 stsp send_fetch_symrefs(struct imsgbuf *ibuf, struct got_pathlist_head *symrefs)
557 e70bf110 2020-03-22 stsp const struct got_error *err = NULL;
558 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
559 e70bf110 2020-03-22 stsp size_t len, nsymrefs = 0;
560 e70bf110 2020-03-22 stsp struct got_pathlist_entry *pe;
562 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_symrefs);
563 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
564 e70bf110 2020-03-22 stsp const char *target = pe->data;
565 e70bf110 2020-03-22 stsp len += sizeof(struct got_imsg_fetch_symref) +
566 e70bf110 2020-03-22 stsp pe->path_len + strlen(target);
567 e70bf110 2020-03-22 stsp nsymrefs++;
570 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
571 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
573 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_SYMREFS, 0, 0, len);
574 e70bf110 2020-03-22 stsp if (wbuf == NULL)
575 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_SYMREFS");
577 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symrefs definition! */
578 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, &nsymrefs, sizeof(nsymrefs)) == -1) {
579 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
580 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
581 e70bf110 2020-03-22 stsp return err;
584 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
585 e70bf110 2020-03-22 stsp const char *name = pe->path;
586 e70bf110 2020-03-22 stsp size_t name_len = pe->path_len;
587 e70bf110 2020-03-22 stsp const char *target = pe->data;
588 e70bf110 2020-03-22 stsp size_t target_len = strlen(target);
590 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symref definition! */
591 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) {
592 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
593 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
594 e70bf110 2020-03-22 stsp return err;
596 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, &target_len, sizeof(target_len)) == -1) {
597 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
598 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
599 e70bf110 2020-03-22 stsp return err;
601 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, name, name_len) == -1) {
602 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
603 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
604 e70bf110 2020-03-22 stsp return err;
606 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, target, target_len) == -1) {
607 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
608 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
609 e70bf110 2020-03-22 stsp return err;
613 e70bf110 2020-03-22 stsp wbuf->fd = -1;
614 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
615 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
618 e70bf110 2020-03-22 stsp static const struct got_error *
619 e70bf110 2020-03-22 stsp send_fetch_ref(struct imsgbuf *ibuf, struct got_object_id *refid,
620 e70bf110 2020-03-22 stsp const char *refname)
622 e70bf110 2020-03-22 stsp const struct got_error *err = NULL;
623 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
624 e70bf110 2020-03-22 stsp size_t len, reflen = strlen(refname);
626 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_ref) + reflen;
627 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
628 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
630 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_REF, 0, 0, len);
631 e70bf110 2020-03-22 stsp if (wbuf == NULL)
632 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_REF");
634 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_ref definition! */
635 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, refid->sha1, SHA1_DIGEST_LENGTH) == -1) {
636 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_REF");
637 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
638 e70bf110 2020-03-22 stsp return err;
640 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, refname, reflen) == -1) {
641 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_REF");
642 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
643 e70bf110 2020-03-22 stsp return err;
646 e70bf110 2020-03-22 stsp wbuf->fd = -1;
647 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
648 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
651 e70bf110 2020-03-22 stsp static const struct got_error *
652 1d72a2a0 2020-03-24 stsp fetch_pack(int fd, int packfd, uint8_t *pack_sha1,
653 659e7fbd 2020-03-20 stsp struct got_pathlist_head *have_refs, int fetch_all_branches,
654 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_branches,
655 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_refs, int list_refs_only,
656 41b0de12 2020-03-21 stsp struct imsgbuf *ibuf)
658 9ff10419 2020-03-18 stsp const struct got_error *err = NULL;
659 f1c6967f 2020-03-19 stsp char buf[GOT_FETCH_PKTMAX];
660 93658fb9 2020-03-18 stsp char hashstr[SHA1_DIGEST_STRING_LENGTH];
661 93658fb9 2020-03-18 stsp struct got_object_id *have, *want;
662 8a29a085 2020-03-18 stsp int is_firstpkt = 1, nref = 0, refsz = 16;
663 7848a0e1 2020-03-19 stsp int i, n, nwant = 0, nhave = 0, acked = 0;
664 5672d305 2020-03-18 stsp off_t packsz = 0, last_reported_packsz = 0;
665 00cd0e0a 2020-03-18 stsp char *id_str = NULL, *refname = NULL;
666 00cd0e0a 2020-03-18 stsp char *server_capabilities = NULL, *my_capabilities = NULL;
667 659e7fbd 2020-03-20 stsp const char *default_branch = NULL;
668 abe0f35f 2020-03-18 stsp struct got_pathlist_head symrefs;
669 abe0f35f 2020-03-18 stsp struct got_pathlist_entry *pe;
670 406106ee 2020-03-20 stsp int sent_my_capabilites = 0, have_sidebands = 0;
671 659e7fbd 2020-03-20 stsp int found_branch = 0;
672 dc671e91 2020-03-24 stsp SHA1_CTX sha1_ctx;
673 dc671e91 2020-03-24 stsp uint8_t sha1_buf[SHA1_DIGEST_LENGTH];
674 dc671e91 2020-03-24 stsp size_t sha1_buf_len = 0;
677 abe0f35f 2020-03-18 stsp TAILQ_INIT(&symrefs);
678 dc671e91 2020-03-24 stsp SHA1Init(&sha1_ctx);
680 93658fb9 2020-03-18 stsp have = malloc(refsz * sizeof(have[0]));
681 9ff10419 2020-03-18 stsp if (have == NULL)
682 9ff10419 2020-03-18 stsp return got_error_from_errno("malloc");
683 93658fb9 2020-03-18 stsp want = malloc(refsz * sizeof(want[0]));
684 9ff10419 2020-03-18 stsp if (want == NULL) {
685 9ff10419 2020-03-18 stsp err = got_error_from_errno("malloc");
688 9ff10419 2020-03-18 stsp while (1) {
689 fe53745c 2020-03-18 stsp err = readpkt(&n, fd, buf, sizeof(buf));
692 9ff10419 2020-03-18 stsp if (n == 0)
694 a6f88e33 2020-03-18 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
695 531c3985 2020-03-18 stsp err = fetch_error(&buf[4], n - 4);
698 00cd0e0a 2020-03-18 stsp err = parse_refline(&id_str, &refname, &server_capabilities,
702 8a29a085 2020-03-18 stsp if (is_firstpkt) {
703 858b0dfb 2020-03-20 stsp if (chattygot && server_capabilities[0] != '\0')
704 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: server capabilities: %s\n",
705 858b0dfb 2020-03-20 stsp getprogname(), server_capabilities);
706 abe0f35f 2020-03-18 stsp err = match_capabilities(&my_capabilities, &symrefs,
707 00cd0e0a 2020-03-18 stsp server_capabilities);
710 858b0dfb 2020-03-20 stsp if (chattygot)
711 2690194b 2020-03-21 stsp fprintf(stderr, "%s: my capabilities:%s\n",
712 858b0dfb 2020-03-20 stsp getprogname(), my_capabilities);
713 e70bf110 2020-03-22 stsp err = send_fetch_symrefs(ibuf, &symrefs);
716 7848a0e1 2020-03-19 stsp is_firstpkt = 0;
717 659e7fbd 2020-03-20 stsp if (!fetch_all_branches) {
718 659e7fbd 2020-03-20 stsp TAILQ_FOREACH(pe, &symrefs, entry) {
719 659e7fbd 2020-03-20 stsp const char *name = pe->path;
720 659e7fbd 2020-03-20 stsp const char *symref_target = pe->data;
721 659e7fbd 2020-03-20 stsp if (strcmp(name, GOT_REF_HEAD) != 0)
723 659e7fbd 2020-03-20 stsp default_branch = symref_target;
729 2690194b 2020-03-21 stsp if (strstr(refname, "^{}")) {
730 2690194b 2020-03-21 stsp if (chattygot) {
731 2690194b 2020-03-21 stsp fprintf(stderr, "%s: ignoring %s\n",
732 2690194b 2020-03-21 stsp getprogname(), refname);
737 659e7fbd 2020-03-20 stsp if (strncmp(refname, "refs/heads/", 11) == 0) {
738 41b0de12 2020-03-21 stsp if (fetch_all_branches || list_refs_only) {
739 4ba14133 2020-03-20 stsp found_branch = 1;
740 4ba14133 2020-03-20 stsp } else if (!TAILQ_EMPTY(wanted_branches)) {
741 4ba14133 2020-03-20 stsp TAILQ_FOREACH(pe, wanted_branches, entry) {
742 4ba14133 2020-03-20 stsp if (match_branch(refname, pe->path))
745 2690194b 2020-03-21 stsp if (pe == NULL) {
746 2690194b 2020-03-21 stsp if (chattygot) {
747 2690194b 2020-03-21 stsp fprintf(stderr,
748 2690194b 2020-03-21 stsp "%s: ignoring %s\n",
749 2690194b 2020-03-21 stsp getprogname(), refname);
753 4ba14133 2020-03-20 stsp found_branch = 1;
754 4ba14133 2020-03-20 stsp } else if (default_branch != NULL) {
755 2690194b 2020-03-21 stsp if (!match_branch(refname, default_branch)) {
756 2690194b 2020-03-21 stsp if (chattygot) {
757 2690194b 2020-03-21 stsp fprintf(stderr,
758 2690194b 2020-03-21 stsp "%s: ignoring %s\n",
759 2690194b 2020-03-21 stsp getprogname(), refname);
763 4ba14133 2020-03-20 stsp found_branch = 1;
765 659e7fbd 2020-03-20 stsp } else if (strncmp(refname, "refs/tags/", 10) != 0) {
766 0e4002ca 2020-03-21 stsp if (!TAILQ_EMPTY(wanted_refs)) {
767 0e4002ca 2020-03-21 stsp TAILQ_FOREACH(pe, wanted_refs, entry) {
768 0e4002ca 2020-03-21 stsp if (match_wanted_ref(refname, pe->path))
771 0e4002ca 2020-03-21 stsp if (pe == NULL) {
772 0e4002ca 2020-03-21 stsp if (chattygot) {
773 0e4002ca 2020-03-21 stsp fprintf(stderr,
774 0e4002ca 2020-03-21 stsp "%s: ignoring %s\n",
775 0e4002ca 2020-03-21 stsp getprogname(), refname);
779 0e4002ca 2020-03-21 stsp found_branch = 1;
780 0e4002ca 2020-03-21 stsp } else if (!list_refs_only) {
781 2690194b 2020-03-21 stsp if (chattygot) {
782 2690194b 2020-03-21 stsp fprintf(stderr, "%s: ignoring %s\n",
783 2690194b 2020-03-21 stsp getprogname(), refname);
789 cf875574 2020-03-18 stsp if (refsz == nref + 1) {
790 93658fb9 2020-03-18 stsp refsz *= 2;
791 14778466 2020-03-18 stsp have = reallocarray(have, refsz, sizeof(have[0]));
792 9ff10419 2020-03-18 stsp if (have == NULL) {
793 14778466 2020-03-18 stsp err = got_error_from_errno("reallocarray");
796 14778466 2020-03-18 stsp want = reallocarray(want, refsz, sizeof(want[0]));
797 9ff10419 2020-03-18 stsp if (want == NULL) {
798 14778466 2020-03-18 stsp err = got_error_from_errno("reallocarray");
802 00cd0e0a 2020-03-18 stsp if (!got_parse_sha1_digest(want[nref].sha1, id_str)) {
803 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_BAD_OBJ_ID_STR);
806 7848a0e1 2020-03-19 stsp match_remote_ref(have_refs, &have[nref], refname);
807 e70bf110 2020-03-22 stsp err = send_fetch_ref(ibuf, &want[nref], refname);
811 2690194b 2020-03-21 stsp if (chattygot)
812 2690194b 2020-03-21 stsp fprintf(stderr, "%s: %s will be fetched\n",
813 2690194b 2020-03-21 stsp getprogname(), refname);
814 2690194b 2020-03-21 stsp if (chattygot > 1) {
815 858b0dfb 2020-03-20 stsp char *theirs, *mine;
816 858b0dfb 2020-03-20 stsp err = got_object_id_str(&theirs, &want[nref]);
819 858b0dfb 2020-03-20 stsp err = got_object_id_str(&mine, &have[nref]);
821 858b0dfb 2020-03-20 stsp free(theirs);
824 2690194b 2020-03-21 stsp fprintf(stderr, "%s: remote: %s\n%s: local: %s\n",
825 659e7fbd 2020-03-20 stsp getprogname(), theirs, getprogname(), mine);
826 858b0dfb 2020-03-20 stsp free(theirs);
827 858b0dfb 2020-03-20 stsp free(mine);
832 41b0de12 2020-03-21 stsp if (list_refs_only)
835 659e7fbd 2020-03-20 stsp /* Abort if we haven't found any branch to fetch. */
836 659e7fbd 2020-03-20 stsp if (!found_branch) {
837 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_FETCH_NO_BRANCH);
841 cf875574 2020-03-18 stsp for (i = 0; i < nref; i++) {
842 93658fb9 2020-03-18 stsp if (got_object_id_cmp(&have[i], &want[i]) == 0)
844 93658fb9 2020-03-18 stsp got_sha1_digest_to_str(want[i].sha1, hashstr, sizeof(hashstr));
845 406106ee 2020-03-20 stsp n = snprintf(buf, sizeof(buf), "want %s%s\n", hashstr,
846 406106ee 2020-03-20 stsp sent_my_capabilites ? "" : my_capabilities);
847 9ff10419 2020-03-18 stsp if (n >= sizeof(buf)) {
848 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
851 344e4747 2020-03-18 stsp err = writepkt(fd, buf, n);
854 858b0dfb 2020-03-20 stsp sent_my_capabilites = 1;
857 38c670f1 2020-03-18 stsp err = flushpkt(fd);
861 3c912d14 2020-03-19 stsp if (nwant == 0)
864 cf875574 2020-03-18 stsp for (i = 0; i < nref; i++) {
865 93658fb9 2020-03-18 stsp if (got_object_id_cmp(&have[i], &zhash) == 0)
867 7848a0e1 2020-03-19 stsp got_sha1_digest_to_str(have[i].sha1, hashstr, sizeof(hashstr));
868 93658fb9 2020-03-18 stsp n = snprintf(buf, sizeof(buf), "have %s\n", hashstr);
869 9ff10419 2020-03-18 stsp if (n >= sizeof(buf)) {
870 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
873 c20695fb 2020-03-20 stsp err = writepkt(fd, buf, n);
879 7848a0e1 2020-03-19 stsp while (nhave > 0 && !acked) {
880 7848a0e1 2020-03-19 stsp struct got_object_id common_id;
882 7848a0e1 2020-03-19 stsp /* The server should ACK the object IDs we need. */
883 7848a0e1 2020-03-19 stsp err = readpkt(&n, fd, buf, sizeof(buf));
886 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
887 7848a0e1 2020-03-19 stsp err = fetch_error(&buf[4], n - 4);
890 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "NAK\n", 4) == 0) {
891 7848a0e1 2020-03-19 stsp /* Server has not located our objects yet. */
894 7848a0e1 2020-03-19 stsp if (n < 4 + SHA1_DIGEST_STRING_LENGTH ||
895 7848a0e1 2020-03-19 stsp strncmp(buf, "ACK ", 4) != 0) {
896 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
897 7848a0e1 2020-03-19 stsp "unexpected message from server");
900 7848a0e1 2020-03-19 stsp if (!got_parse_sha1_digest(common_id.sha1, buf + 4)) {
901 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
902 7848a0e1 2020-03-19 stsp "bad object ID in ACK packet from server");
908 93658fb9 2020-03-18 stsp n = snprintf(buf, sizeof(buf), "done\n");
909 344e4747 2020-03-18 stsp err = writepkt(fd, buf, n);
913 7848a0e1 2020-03-19 stsp if (nhave == 0) {
914 7848a0e1 2020-03-19 stsp err = readpkt(&n, fd, buf, sizeof(buf));
917 7848a0e1 2020-03-19 stsp if (n != 4 || strncmp(buf, "NAK\n", n) != 0) {
918 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
919 7848a0e1 2020-03-19 stsp "unexpected message from server");
924 858b0dfb 2020-03-20 stsp if (chattygot)
925 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: fetching...\n", getprogname());
927 531c3985 2020-03-18 stsp if (my_capabilities != NULL &&
928 531c3985 2020-03-18 stsp strstr(my_capabilities, GOT_CAPA_SIDE_BAND_64K) != NULL)
929 531c3985 2020-03-18 stsp have_sidebands = 1;
931 9ff10419 2020-03-18 stsp while (1) {
932 dc671e91 2020-03-24 stsp ssize_t r = 0;
933 531c3985 2020-03-18 stsp int datalen = -1;
935 531c3985 2020-03-18 stsp if (have_sidebands) {
936 531c3985 2020-03-18 stsp err = read_pkthdr(&datalen, fd);
939 531c3985 2020-03-18 stsp if (datalen <= 0)
942 531c3985 2020-03-18 stsp /* Read sideband channel ID (one byte). */
943 531c3985 2020-03-18 stsp r = read(fd, buf, 1);
944 531c3985 2020-03-18 stsp if (r == -1) {
945 531c3985 2020-03-18 stsp err = got_error_from_errno("read");
948 531c3985 2020-03-18 stsp if (r != 1) {
949 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
950 531c3985 2020-03-18 stsp "short packet");
953 531c3985 2020-03-18 stsp if (datalen > sizeof(buf) - 5) {
954 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
955 531c3985 2020-03-18 stsp "bad packet length");
958 531c3985 2020-03-18 stsp datalen--; /* sideband ID has been read */
959 531c3985 2020-03-18 stsp if (buf[0] == GOT_SIDEBAND_PACKFILE_DATA) {
960 531c3985 2020-03-18 stsp /* Read packfile data. */
961 531c3985 2020-03-18 stsp err = readn(&r, fd, buf, datalen);
964 531c3985 2020-03-18 stsp if (r != datalen) {
965 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
966 531c3985 2020-03-18 stsp "packet too short");
969 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_PROGRESS_INFO) {
970 531c3985 2020-03-18 stsp err = readn(&r, fd, buf, datalen);
973 531c3985 2020-03-18 stsp if (r != datalen) {
974 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
975 531c3985 2020-03-18 stsp "packet too short");
978 531c3985 2020-03-18 stsp err = fetch_progress(ibuf, buf, r);
982 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_ERROR_INFO) {
983 531c3985 2020-03-18 stsp err = readn(&r, fd, buf, datalen);
986 531c3985 2020-03-18 stsp if (r != datalen) {
987 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
988 531c3985 2020-03-18 stsp "packet too short");
991 531c3985 2020-03-18 stsp err = fetch_error(buf, r);
994 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
995 531c3985 2020-03-18 stsp "unknown side-band received from server");
999 531c3985 2020-03-18 stsp /* No sideband channel. Every byte is packfile data. */
1000 531c3985 2020-03-18 stsp err = readn(&r, fd, buf, sizeof buf);
1002 531c3985 2020-03-18 stsp goto done;
1003 531c3985 2020-03-18 stsp if (r <= 0)
1008 dc671e91 2020-03-24 stsp * An expected SHA1 checksum sits at the end of the pack file.
1009 dc671e91 2020-03-24 stsp * Since we don't know the file size ahead of time we have to
1010 dc671e91 2020-03-24 stsp * keep SHA1_DIGEST_LENGTH bytes buffered and avoid mixing
1011 dc671e91 2020-03-24 stsp * those bytes into our SHA1 checksum computation until we
1012 dc671e91 2020-03-24 stsp * know for sure that additional pack file data bytes follow.
1014 dc671e91 2020-03-24 stsp * We can assume r > 0 since otherwise the loop would exit.
1016 dc671e91 2020-03-24 stsp if (r < SHA1_DIGEST_LENGTH) {
1017 dc671e91 2020-03-24 stsp if (sha1_buf_len < SHA1_DIGEST_LENGTH) {
1019 dc671e91 2020-03-24 stsp * If there's enough buffered + read data to
1020 dc671e91 2020-03-24 stsp * fill up the buffer then shift a sufficient
1021 dc671e91 2020-03-24 stsp * amount of bytes out at the front to make
1022 dc671e91 2020-03-24 stsp * room, mixing those bytes into the checksum.
1024 dc671e91 2020-03-24 stsp while (sha1_buf_len > 0 &&
1025 dc671e91 2020-03-24 stsp sha1_buf_len + r > SHA1_DIGEST_LENGTH) {
1026 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, 1);
1027 dc671e91 2020-03-24 stsp memmove(sha1_buf, sha1_buf + 1, 1);
1028 dc671e91 2020-03-24 stsp sha1_buf_len--;
1031 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
1032 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len, buf, r);
1033 dc671e91 2020-03-24 stsp sha1_buf_len += r;
1036 dc671e91 2020-03-24 stsp * Mix in previously buffered bytes which
1037 dc671e91 2020-03-24 stsp * are not part of the checksum after all.
1039 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, r);
1041 dc671e91 2020-03-24 stsp /* Update potential checksum buffer. */
1042 dc671e91 2020-03-24 stsp memmove(sha1_buf, sha1_buf + r,
1043 dc671e91 2020-03-24 stsp sha1_buf_len - r);
1044 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len - r, buf, r);
1047 dc671e91 2020-03-24 stsp /* Mix in any previously buffered bytes. */
1048 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, sha1_buf_len);
1050 dc671e91 2020-03-24 stsp /* Mix in bytes read minus potential checksum bytes. */
1051 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, buf, r - SHA1_DIGEST_LENGTH);
1053 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
1054 dc671e91 2020-03-24 stsp memcpy(sha1_buf, buf + r - SHA1_DIGEST_LENGTH,
1055 dc671e91 2020-03-24 stsp SHA1_DIGEST_LENGTH);
1056 dc671e91 2020-03-24 stsp sha1_buf_len = SHA1_DIGEST_LENGTH;
1059 531c3985 2020-03-18 stsp /* Write packfile data to temporary pack file. */
1060 fe53745c 2020-03-18 stsp w = write(packfd, buf, r);
1061 9ff10419 2020-03-18 stsp if (w == -1) {
1062 9ff10419 2020-03-18 stsp err = got_error_from_errno("write");
1063 9ff10419 2020-03-18 stsp goto done;
1065 fe53745c 2020-03-18 stsp if (w != r) {
1066 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_IO);
1067 9ff10419 2020-03-18 stsp goto done;
1069 531c3985 2020-03-18 stsp packsz += w;
1071 5672d305 2020-03-18 stsp /* Don't send too many progress privsep messages. */
1072 5672d305 2020-03-18 stsp if (packsz > last_reported_packsz + 1024) {
1073 e70bf110 2020-03-22 stsp err = send_fetch_download_progress(ibuf, packsz);
1075 5672d305 2020-03-18 stsp goto done;
1076 5672d305 2020-03-18 stsp last_reported_packsz = packsz;
1079 e70bf110 2020-03-22 stsp err = send_fetch_download_progress(ibuf, packsz);
1081 5672d305 2020-03-18 stsp goto done;
1083 dc671e91 2020-03-24 stsp SHA1Final(pack_sha1, &sha1_ctx);
1084 dc671e91 2020-03-24 stsp if (sha1_buf_len != SHA1_DIGEST_LENGTH ||
1085 dc671e91 2020-03-24 stsp memcmp(pack_sha1, sha1_buf, sha1_buf_len) != 0) {
1086 dc671e91 2020-03-24 stsp err = got_error_msg(GOT_ERR_BAD_PACKFILE,
1087 dc671e91 2020-03-24 stsp "pack file checksum mismatch");
1090 abe0f35f 2020-03-18 stsp TAILQ_FOREACH(pe, &symrefs, entry) {
1091 abe0f35f 2020-03-18 stsp free((void *)pe->path);
1092 abe0f35f 2020-03-18 stsp free(pe->data);
1094 abe0f35f 2020-03-18 stsp got_pathlist_free(&symrefs);
1095 9ff10419 2020-03-18 stsp free(have);
1096 9ff10419 2020-03-18 stsp free(want);
1097 00cd0e0a 2020-03-18 stsp free(id_str);
1098 00cd0e0a 2020-03-18 stsp free(refname);
1099 00cd0e0a 2020-03-18 stsp free(server_capabilities);
1100 8f2d01a6 2020-03-18 stsp return err;
1105 93658fb9 2020-03-18 stsp main(int argc, char **argv)
1107 93658fb9 2020-03-18 stsp const struct got_error *err = NULL;
1108 7848a0e1 2020-03-19 stsp int fetchfd, packfd = -1, i;
1109 1d72a2a0 2020-03-24 stsp uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
1110 93658fb9 2020-03-18 stsp struct imsgbuf ibuf;
1111 93658fb9 2020-03-18 stsp struct imsg imsg;
1112 33501562 2020-03-18 stsp struct got_pathlist_head have_refs;
1113 4ba14133 2020-03-20 stsp struct got_pathlist_head wanted_branches;
1114 0e4002ca 2020-03-21 stsp struct got_pathlist_head wanted_refs;
1115 7848a0e1 2020-03-19 stsp struct got_pathlist_entry *pe;
1116 4ba14133 2020-03-20 stsp struct got_imsg_fetch_request fetch_req;
1117 659e7fbd 2020-03-20 stsp struct got_imsg_fetch_have_ref href;
1118 4ba14133 2020-03-20 stsp struct got_imsg_fetch_wanted_branch wbranch;
1119 0e4002ca 2020-03-21 stsp struct got_imsg_fetch_wanted_ref wref;
1120 4ba14133 2020-03-20 stsp size_t datalen;
1122 7848a0e1 2020-03-19 stsp static int attached;
1123 7848a0e1 2020-03-19 stsp while (!attached)
1124 7848a0e1 2020-03-19 stsp sleep (1);
1127 33501562 2020-03-18 stsp TAILQ_INIT(&have_refs);
1128 4ba14133 2020-03-20 stsp TAILQ_INIT(&wanted_branches);
1129 0e4002ca 2020-03-21 stsp TAILQ_INIT(&wanted_refs);
1131 93658fb9 2020-03-18 stsp imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
1132 ffb5f621 2020-03-18 stsp #ifndef PROFILE
1133 ffb5f621 2020-03-18 stsp /* revoke access to most system calls */
1134 ffb5f621 2020-03-18 stsp if (pledge("stdio recvfd", NULL) == -1) {
1135 ffb5f621 2020-03-18 stsp err = got_error_from_errno("pledge");
1136 ffb5f621 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
1140 cf875574 2020-03-18 stsp if ((err = got_privsep_recv_imsg(&imsg, &ibuf, 0)) != 0) {
1141 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
1142 93658fb9 2020-03-18 stsp err = NULL;
1143 93658fb9 2020-03-18 stsp goto done;
1145 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
1146 93658fb9 2020-03-18 stsp goto done;
1147 93658fb9 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_REQUEST) {
1148 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1149 93658fb9 2020-03-18 stsp goto done;
1151 33501562 2020-03-18 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1152 4ba14133 2020-03-20 stsp if (datalen < sizeof(fetch_req)) {
1153 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1154 93658fb9 2020-03-18 stsp goto done;
1156 4ba14133 2020-03-20 stsp memcpy(&fetch_req, imsg.data, sizeof(fetch_req));
1157 4ba14133 2020-03-20 stsp fetchfd = imsg.fd;
1158 4ba14133 2020-03-20 stsp imsg_free(&imsg);
1160 2690194b 2020-03-21 stsp if (fetch_req.verbosity > 0)
1161 2690194b 2020-03-21 stsp chattygot += fetch_req.verbosity;
1163 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_have_refs; i++) {
1164 7848a0e1 2020-03-19 stsp struct got_object_id *id;
1165 7848a0e1 2020-03-19 stsp char *refname;
1167 4ba14133 2020-03-20 stsp if ((err = got_privsep_recv_imsg(&imsg, &ibuf, 0)) != 0) {
1168 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
1169 4ba14133 2020-03-20 stsp err = NULL;
1170 4ba14133 2020-03-20 stsp goto done;
1172 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
1173 4ba14133 2020-03-20 stsp goto done;
1174 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_HAVE_REF) {
1175 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1176 4ba14133 2020-03-20 stsp goto done;
1178 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1179 4ba14133 2020-03-20 stsp if (datalen < sizeof(href)) {
1180 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1181 659e7fbd 2020-03-20 stsp goto done;
1183 4ba14133 2020-03-20 stsp memcpy(&href, imsg.data, sizeof(href));
1184 4ba14133 2020-03-20 stsp if (datalen - sizeof(href) < href.name_len) {
1185 7848a0e1 2020-03-19 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1186 7848a0e1 2020-03-19 stsp goto done;
1188 659e7fbd 2020-03-20 stsp refname = malloc(href.name_len + 1);
1189 7848a0e1 2020-03-19 stsp if (refname == NULL) {
1190 659e7fbd 2020-03-20 stsp err = got_error_from_errno("malloc");
1191 7848a0e1 2020-03-19 stsp goto done;
1193 4ba14133 2020-03-20 stsp memcpy(refname, imsg.data + sizeof(href), href.name_len);
1194 659e7fbd 2020-03-20 stsp refname[href.name_len] = '\0';
1196 7848a0e1 2020-03-19 stsp id = malloc(sizeof(*id));
1197 7848a0e1 2020-03-19 stsp if (id == NULL) {
1198 7848a0e1 2020-03-19 stsp free(refname);
1199 7848a0e1 2020-03-19 stsp err = got_error_from_errno("malloc");
1200 7848a0e1 2020-03-19 stsp goto done;
1202 659e7fbd 2020-03-20 stsp memcpy(id->sha1, href.id, SHA1_DIGEST_LENGTH);
1203 7848a0e1 2020-03-19 stsp err = got_pathlist_append(&have_refs, refname, id);
1204 7848a0e1 2020-03-19 stsp if (err) {
1205 7848a0e1 2020-03-19 stsp free(refname);
1207 7848a0e1 2020-03-19 stsp goto done;
1210 4ba14133 2020-03-20 stsp imsg_free(&imsg);
1213 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_wanted_branches; i++) {
1214 4ba14133 2020-03-20 stsp char *refname;
1216 4ba14133 2020-03-20 stsp if ((err = got_privsep_recv_imsg(&imsg, &ibuf, 0)) != 0) {
1217 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
1218 4ba14133 2020-03-20 stsp err = NULL;
1219 4ba14133 2020-03-20 stsp goto done;
1221 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
1222 4ba14133 2020-03-20 stsp goto done;
1223 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_BRANCH) {
1224 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1225 4ba14133 2020-03-20 stsp goto done;
1227 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1228 4ba14133 2020-03-20 stsp if (datalen < sizeof(wbranch)) {
1229 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1230 4ba14133 2020-03-20 stsp goto done;
1232 4ba14133 2020-03-20 stsp memcpy(&wbranch, imsg.data, sizeof(wbranch));
1233 4ba14133 2020-03-20 stsp if (datalen - sizeof(wbranch) < wbranch.name_len) {
1234 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1235 4ba14133 2020-03-20 stsp goto done;
1237 4ba14133 2020-03-20 stsp refname = malloc(wbranch.name_len + 1);
1238 4ba14133 2020-03-20 stsp if (refname == NULL) {
1239 4ba14133 2020-03-20 stsp err = got_error_from_errno("malloc");
1240 4ba14133 2020-03-20 stsp goto done;
1242 4ba14133 2020-03-20 stsp memcpy(refname, imsg.data + sizeof(wbranch), wbranch.name_len);
1243 4ba14133 2020-03-20 stsp refname[wbranch.name_len] = '\0';
1245 4ba14133 2020-03-20 stsp err = got_pathlist_append(&wanted_branches, refname, NULL);
1246 4ba14133 2020-03-20 stsp if (err) {
1247 4ba14133 2020-03-20 stsp free(refname);
1248 4ba14133 2020-03-20 stsp goto done;
1251 4ba14133 2020-03-20 stsp imsg_free(&imsg);
1254 0e4002ca 2020-03-21 stsp for (i = 0; i < fetch_req.n_wanted_refs; i++) {
1255 0e4002ca 2020-03-21 stsp char *refname;
1257 0e4002ca 2020-03-21 stsp if ((err = got_privsep_recv_imsg(&imsg, &ibuf, 0)) != 0) {
1258 0e4002ca 2020-03-21 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
1259 0e4002ca 2020-03-21 stsp err = NULL;
1260 0e4002ca 2020-03-21 stsp goto done;
1262 0e4002ca 2020-03-21 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
1263 0e4002ca 2020-03-21 stsp goto done;
1264 0e4002ca 2020-03-21 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_REF) {
1265 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1266 0e4002ca 2020-03-21 stsp goto done;
1268 0e4002ca 2020-03-21 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
1269 0e4002ca 2020-03-21 stsp if (datalen < sizeof(wref)) {
1270 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1271 0e4002ca 2020-03-21 stsp goto done;
1273 0e4002ca 2020-03-21 stsp memcpy(&wref, imsg.data, sizeof(wref));
1274 0e4002ca 2020-03-21 stsp if (datalen - sizeof(wref) < wref.name_len) {
1275 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1276 0e4002ca 2020-03-21 stsp goto done;
1278 0e4002ca 2020-03-21 stsp refname = malloc(wref.name_len + 1);
1279 0e4002ca 2020-03-21 stsp if (refname == NULL) {
1280 0e4002ca 2020-03-21 stsp err = got_error_from_errno("malloc");
1281 0e4002ca 2020-03-21 stsp goto done;
1283 0e4002ca 2020-03-21 stsp memcpy(refname, imsg.data + sizeof(wref), wref.name_len);
1284 0e4002ca 2020-03-21 stsp refname[wref.name_len] = '\0';
1286 0e4002ca 2020-03-21 stsp err = got_pathlist_append(&wanted_refs, refname, NULL);
1287 0e4002ca 2020-03-21 stsp if (err) {
1288 0e4002ca 2020-03-21 stsp free(refname);
1289 0e4002ca 2020-03-21 stsp goto done;
1292 0e4002ca 2020-03-21 stsp imsg_free(&imsg);
1295 cf875574 2020-03-18 stsp if ((err = got_privsep_recv_imsg(&imsg, &ibuf, 0)) != 0) {
1296 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
1297 93658fb9 2020-03-18 stsp err = NULL;
1298 93658fb9 2020-03-18 stsp goto done;
1300 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
1301 93658fb9 2020-03-18 stsp goto done;
1302 f826addf 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_OUTFD) {
1303 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
1304 93658fb9 2020-03-18 stsp goto done;
1306 93658fb9 2020-03-18 stsp if (imsg.hdr.len - IMSG_HEADER_SIZE != 0) {
1307 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1308 93658fb9 2020-03-18 stsp goto done;
1310 93658fb9 2020-03-18 stsp packfd = imsg.fd;
1312 1d72a2a0 2020-03-24 stsp err = fetch_pack(fetchfd, packfd, pack_sha1, &have_refs,
1313 41b0de12 2020-03-21 stsp fetch_req.fetch_all_branches, &wanted_branches,
1314 0e4002ca 2020-03-21 stsp &wanted_refs, fetch_req.list_refs_only, &ibuf);
1316 7848a0e1 2020-03-19 stsp TAILQ_FOREACH(pe, &have_refs, entry) {
1317 7848a0e1 2020-03-19 stsp free((char *)pe->path);
1318 7848a0e1 2020-03-19 stsp free(pe->data);
1320 7848a0e1 2020-03-19 stsp got_pathlist_free(&have_refs);
1321 4ba14133 2020-03-20 stsp TAILQ_FOREACH(pe, &wanted_branches, entry)
1322 4ba14133 2020-03-20 stsp free((char *)pe->path);
1323 4ba14133 2020-03-20 stsp got_pathlist_free(&wanted_branches);
1324 0bec957e 2020-03-21 stsp if (fetchfd != -1 && close(fetchfd) == -1 && err == NULL)
1325 0bec957e 2020-03-21 stsp err = got_error_from_errno("close");
1326 9ff10419 2020-03-18 stsp if (packfd != -1 && close(packfd) == -1 && err == NULL)
1327 9ff10419 2020-03-18 stsp err = got_error_from_errno("close");
1328 9ff10419 2020-03-18 stsp if (err != NULL)
1329 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
1331 1d72a2a0 2020-03-24 stsp err = send_fetch_done(&ibuf, pack_sha1);
1332 cf875574 2020-03-18 stsp if (err != NULL) {
1333 93658fb9 2020-03-18 stsp fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
1334 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
