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/uio.h>
19 93658fb9 2020-03-18 stsp #include <sys/time.h>
20 93658fb9 2020-03-18 stsp #include <sys/stat.h>
22 93658fb9 2020-03-18 stsp #include <stdint.h>
23 93658fb9 2020-03-18 stsp #include <errno.h>
24 93658fb9 2020-03-18 stsp #include <limits.h>
25 93658fb9 2020-03-18 stsp #include <signal.h>
26 93658fb9 2020-03-18 stsp #include <stdio.h>
27 93658fb9 2020-03-18 stsp #include <stdlib.h>
28 93658fb9 2020-03-18 stsp #include <string.h>
29 93658fb9 2020-03-18 stsp #include <ctype.h>
30 93658fb9 2020-03-18 stsp #include <sha1.h>
31 93658fb9 2020-03-18 stsp #include <fcntl.h>
32 81a12da5 2020-09-09 naddy #include <unistd.h>
33 93658fb9 2020-03-18 stsp #include <zlib.h>
34 93658fb9 2020-03-18 stsp #include <err.h>
36 dd038bc6 2021-09-21 thomas.ad #include "got_compat.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"
51 f024663d 2021-09-05 stsp #include "got_lib_pkt.h"
52 bd3d9e54 2021-09-05 stsp #include "got_lib_gitproto.h"
54 8a29a085 2020-03-18 stsp #ifndef nitems
55 8a29a085 2020-03-18 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
58 93658fb9 2020-03-18 stsp struct got_object *indexed;
59 858b0dfb 2020-03-20 stsp static int chattygot;
60 93658fb9 2020-03-18 stsp static struct got_object_id zhash = {.sha1={0}};
62 bd3d9e54 2021-09-05 stsp static const struct got_capability got_capabilities[] = {
63 bd3d9e54 2021-09-05 stsp { GOT_CAPA_AGENT, "got/" GOT_VERSION_STR },
64 bd3d9e54 2021-09-05 stsp { GOT_CAPA_OFS_DELTA, NULL },
65 bd3d9e54 2021-09-05 stsp { GOT_CAPA_SIDE_BAND_64K, NULL },
69 7848a0e1 2020-03-19 stsp match_remote_ref(struct got_pathlist_head *have_refs,
70 7848a0e1 2020-03-19 stsp struct got_object_id *my_id, char *refname)
72 33501562 2020-03-18 stsp struct got_pathlist_entry *pe;
74 7848a0e1 2020-03-19 stsp /* XXX zero-hash signifies we don't have this ref;
75 7848a0e1 2020-03-19 stsp * we should use a flag instead */
76 7848a0e1 2020-03-19 stsp memset(my_id, 0, sizeof(*my_id));
78 33501562 2020-03-18 stsp TAILQ_FOREACH(pe, have_refs, entry) {
79 7848a0e1 2020-03-19 stsp struct got_object_id *id = pe->data;
80 7848a0e1 2020-03-19 stsp if (strcmp(pe->path, refname) == 0) {
81 7848a0e1 2020-03-19 stsp memcpy(my_id, id, sizeof(*my_id));
88 659e7fbd 2020-03-20 stsp match_branch(const char *branch, const char *wanted_branch)
90 659e7fbd 2020-03-20 stsp if (strncmp(branch, "refs/heads/", 11) != 0)
93 659e7fbd 2020-03-20 stsp if (strncmp(wanted_branch, "refs/heads/", 11) == 0)
94 659e7fbd 2020-03-20 stsp wanted_branch += 11;
96 659e7fbd 2020-03-20 stsp return (strcmp(branch + 11, wanted_branch) == 0);
100 0e4002ca 2020-03-21 stsp match_wanted_ref(const char *refname, const char *wanted_ref)
102 0e4002ca 2020-03-21 stsp if (strncmp(refname, "refs/", 5) != 0)
104 0e4002ca 2020-03-21 stsp refname += 5;
107 0e4002ca 2020-03-21 stsp * Prevent fetching of references that won't make any
108 0e4002ca 2020-03-21 stsp * sense outside of the remote repository's context.
110 0e4002ca 2020-03-21 stsp if (strncmp(refname, "got/", 4) == 0)
112 0e4002ca 2020-03-21 stsp if (strncmp(refname, "remotes/", 8) == 0)
115 0e4002ca 2020-03-21 stsp if (strncmp(wanted_ref, "refs/", 5) == 0)
116 0e4002ca 2020-03-21 stsp wanted_ref += 5;
118 0e4002ca 2020-03-21 stsp /* Allow prefix match. */
119 0e4002ca 2020-03-21 stsp if (got_path_is_child(refname, wanted_ref, strlen(wanted_ref)))
122 0e4002ca 2020-03-21 stsp /* Allow exact match. */
123 0e4002ca 2020-03-21 stsp return (strcmp(refname, wanted_ref) == 0);
126 abe0f35f 2020-03-18 stsp static const struct got_error *
127 e70bf110 2020-03-22 stsp send_fetch_server_progress(struct imsgbuf *ibuf, const char *msg, size_t msglen)
129 e70bf110 2020-03-22 stsp if (msglen > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
130 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
132 e70bf110 2020-03-22 stsp if (msglen == 0)
133 e70bf110 2020-03-22 stsp return NULL;
135 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_SERVER_PROGRESS, 0, 0, -1,
136 e70bf110 2020-03-22 stsp msg, msglen) == -1)
137 e70bf110 2020-03-22 stsp return got_error_from_errno(
138 e70bf110 2020-03-22 stsp "imsg_compose FETCH_SERVER_PROGRESS");
140 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
143 531c3985 2020-03-18 stsp static const struct got_error *
144 e70bf110 2020-03-22 stsp send_fetch_download_progress(struct imsgbuf *ibuf, off_t bytes)
146 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DOWNLOAD_PROGRESS, 0, 0, -1,
147 e70bf110 2020-03-22 stsp &bytes, sizeof(bytes)) == -1)
148 e70bf110 2020-03-22 stsp return got_error_from_errno(
149 e70bf110 2020-03-22 stsp "imsg_compose FETCH_DOWNLOAD_PROGRESS");
151 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
154 e70bf110 2020-03-22 stsp static const struct got_error *
155 1d72a2a0 2020-03-24 stsp send_fetch_done(struct imsgbuf *ibuf, uint8_t *pack_sha1)
157 e70bf110 2020-03-22 stsp if (imsg_compose(ibuf, GOT_IMSG_FETCH_DONE, 0, 0, -1,
158 1d72a2a0 2020-03-24 stsp pack_sha1, SHA1_DIGEST_LENGTH) == -1)
159 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_compose FETCH");
160 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
163 e70bf110 2020-03-22 stsp static const struct got_error *
164 531c3985 2020-03-18 stsp fetch_progress(struct imsgbuf *ibuf, const char *buf, size_t len)
168 531c3985 2020-03-18 stsp if (len == 0)
169 531c3985 2020-03-18 stsp return NULL;
172 531c3985 2020-03-18 stsp * Truncate messages which exceed the maximum imsg payload size.
173 531c3985 2020-03-18 stsp * Server may send up to 64k.
175 531c3985 2020-03-18 stsp if (len > MAX_IMSGSIZE - IMSG_HEADER_SIZE)
176 531c3985 2020-03-18 stsp len = MAX_IMSGSIZE - IMSG_HEADER_SIZE;
178 531c3985 2020-03-18 stsp /* Only allow printable ASCII. */
179 531c3985 2020-03-18 stsp for (i = 0; i < len; i++) {
180 531c3985 2020-03-18 stsp if (isprint((unsigned char)buf[i]) ||
181 531c3985 2020-03-18 stsp isspace((unsigned char)buf[i]))
183 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
184 531c3985 2020-03-18 stsp "non-printable progress message received from server");
187 e70bf110 2020-03-22 stsp return send_fetch_server_progress(ibuf, buf, len);
190 8a29a085 2020-03-18 stsp static const struct got_error *
191 531c3985 2020-03-18 stsp fetch_error(const char *buf, size_t len)
193 531c3985 2020-03-18 stsp static char msg[1024];
196 531c3985 2020-03-18 stsp for (i = 0; i < len && i < sizeof(msg) - 1; i++) {
197 531c3985 2020-03-18 stsp if (!isprint(buf[i]))
198 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_BAD_PACKET,
199 531c3985 2020-03-18 stsp "non-printable error message received from server");
200 531c3985 2020-03-18 stsp msg[i] = buf[i];
202 531c3985 2020-03-18 stsp msg[i] = '\0';
203 531c3985 2020-03-18 stsp return got_error_msg(GOT_ERR_FETCH_FAILED, msg);
206 531c3985 2020-03-18 stsp static const struct got_error *
207 e70bf110 2020-03-22 stsp send_fetch_symrefs(struct imsgbuf *ibuf, struct got_pathlist_head *symrefs)
209 e70bf110 2020-03-22 stsp const struct got_error *err = NULL;
210 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
211 e70bf110 2020-03-22 stsp size_t len, nsymrefs = 0;
212 e70bf110 2020-03-22 stsp struct got_pathlist_entry *pe;
214 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_symrefs);
215 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
216 e70bf110 2020-03-22 stsp const char *target = pe->data;
217 e70bf110 2020-03-22 stsp len += sizeof(struct got_imsg_fetch_symref) +
218 e70bf110 2020-03-22 stsp pe->path_len + strlen(target);
219 e70bf110 2020-03-22 stsp nsymrefs++;
222 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
223 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
225 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_SYMREFS, 0, 0, len);
226 e70bf110 2020-03-22 stsp if (wbuf == NULL)
227 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_SYMREFS");
229 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symrefs definition! */
230 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, &nsymrefs, sizeof(nsymrefs)) == -1) {
231 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
232 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
233 e70bf110 2020-03-22 stsp return err;
236 e70bf110 2020-03-22 stsp TAILQ_FOREACH(pe, symrefs, entry) {
237 e70bf110 2020-03-22 stsp const char *name = pe->path;
238 e70bf110 2020-03-22 stsp size_t name_len = pe->path_len;
239 e70bf110 2020-03-22 stsp const char *target = pe->data;
240 e70bf110 2020-03-22 stsp size_t target_len = strlen(target);
242 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_symref definition! */
243 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, &name_len, sizeof(name_len)) == -1) {
244 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
245 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
246 e70bf110 2020-03-22 stsp return err;
248 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, &target_len, sizeof(target_len)) == -1) {
249 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
250 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
251 e70bf110 2020-03-22 stsp return err;
253 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, name, name_len) == -1) {
254 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
255 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
256 e70bf110 2020-03-22 stsp return err;
258 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, target, target_len) == -1) {
259 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_SYMREFS");
260 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
261 e70bf110 2020-03-22 stsp return err;
265 e70bf110 2020-03-22 stsp wbuf->fd = -1;
266 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
267 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
270 e70bf110 2020-03-22 stsp static const struct got_error *
271 e70bf110 2020-03-22 stsp send_fetch_ref(struct imsgbuf *ibuf, struct got_object_id *refid,
272 e70bf110 2020-03-22 stsp const char *refname)
274 e70bf110 2020-03-22 stsp const struct got_error *err = NULL;
275 e70bf110 2020-03-22 stsp struct ibuf *wbuf;
276 e70bf110 2020-03-22 stsp size_t len, reflen = strlen(refname);
278 e70bf110 2020-03-22 stsp len = sizeof(struct got_imsg_fetch_ref) + reflen;
279 e70bf110 2020-03-22 stsp if (len >= MAX_IMSGSIZE - IMSG_HEADER_SIZE)
280 e70bf110 2020-03-22 stsp return got_error(GOT_ERR_NO_SPACE);
282 e70bf110 2020-03-22 stsp wbuf = imsg_create(ibuf, GOT_IMSG_FETCH_REF, 0, 0, len);
283 e70bf110 2020-03-22 stsp if (wbuf == NULL)
284 e70bf110 2020-03-22 stsp return got_error_from_errno("imsg_create FETCH_REF");
286 e70bf110 2020-03-22 stsp /* Keep in sync with struct got_imsg_fetch_ref definition! */
287 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, refid->sha1, SHA1_DIGEST_LENGTH) == -1) {
288 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_REF");
289 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
290 e70bf110 2020-03-22 stsp return err;
292 e70bf110 2020-03-22 stsp if (imsg_add(wbuf, refname, reflen) == -1) {
293 e70bf110 2020-03-22 stsp err = got_error_from_errno("imsg_add FETCH_REF");
294 e70bf110 2020-03-22 stsp ibuf_free(wbuf);
295 e70bf110 2020-03-22 stsp return err;
298 e70bf110 2020-03-22 stsp wbuf->fd = -1;
299 e70bf110 2020-03-22 stsp imsg_close(ibuf, wbuf);
300 e70bf110 2020-03-22 stsp return got_privsep_flush_imsg(ibuf);
303 e70bf110 2020-03-22 stsp static const struct got_error *
304 1d72a2a0 2020-03-24 stsp fetch_pack(int fd, int packfd, uint8_t *pack_sha1,
305 659e7fbd 2020-03-20 stsp struct got_pathlist_head *have_refs, int fetch_all_branches,
306 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_branches,
307 0e4002ca 2020-03-21 stsp struct got_pathlist_head *wanted_refs, int list_refs_only,
308 41b0de12 2020-03-21 stsp struct imsgbuf *ibuf)
310 9ff10419 2020-03-18 stsp const struct got_error *err = NULL;
311 77d7d3bb 2021-09-05 stsp char buf[GOT_PKT_MAX];
312 93658fb9 2020-03-18 stsp char hashstr[SHA1_DIGEST_STRING_LENGTH];
313 93658fb9 2020-03-18 stsp struct got_object_id *have, *want;
314 8a29a085 2020-03-18 stsp int is_firstpkt = 1, nref = 0, refsz = 16;
315 7848a0e1 2020-03-19 stsp int i, n, nwant = 0, nhave = 0, acked = 0;
316 5672d305 2020-03-18 stsp off_t packsz = 0, last_reported_packsz = 0;
317 00cd0e0a 2020-03-18 stsp char *id_str = NULL, *refname = NULL;
318 00cd0e0a 2020-03-18 stsp char *server_capabilities = NULL, *my_capabilities = NULL;
319 659e7fbd 2020-03-20 stsp const char *default_branch = NULL;
320 abe0f35f 2020-03-18 stsp struct got_pathlist_head symrefs;
321 abe0f35f 2020-03-18 stsp struct got_pathlist_entry *pe;
322 406106ee 2020-03-20 stsp int sent_my_capabilites = 0, have_sidebands = 0;
323 659e7fbd 2020-03-20 stsp int found_branch = 0;
324 dc671e91 2020-03-24 stsp SHA1_CTX sha1_ctx;
325 dc671e91 2020-03-24 stsp uint8_t sha1_buf[SHA1_DIGEST_LENGTH];
326 dc671e91 2020-03-24 stsp size_t sha1_buf_len = 0;
329 abe0f35f 2020-03-18 stsp TAILQ_INIT(&symrefs);
330 dc671e91 2020-03-24 stsp SHA1Init(&sha1_ctx);
332 93658fb9 2020-03-18 stsp have = malloc(refsz * sizeof(have[0]));
333 9ff10419 2020-03-18 stsp if (have == NULL)
334 9ff10419 2020-03-18 stsp return got_error_from_errno("malloc");
335 93658fb9 2020-03-18 stsp want = malloc(refsz * sizeof(want[0]));
336 9ff10419 2020-03-18 stsp if (want == NULL) {
337 9ff10419 2020-03-18 stsp err = got_error_from_errno("malloc");
340 9ff10419 2020-03-18 stsp while (1) {
341 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
344 9ff10419 2020-03-18 stsp if (n == 0)
346 a6f88e33 2020-03-18 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
347 531c3985 2020-03-18 stsp err = fetch_error(&buf[4], n - 4);
350 bd3d9e54 2021-09-05 stsp err = got_gitproto_parse_refline(&id_str, &refname,
351 bd3d9e54 2021-09-05 stsp &server_capabilities, buf, n);
354 8a29a085 2020-03-18 stsp if (is_firstpkt) {
355 858b0dfb 2020-03-20 stsp if (chattygot && server_capabilities[0] != '\0')
356 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: server capabilities: %s\n",
357 858b0dfb 2020-03-20 stsp getprogname(), server_capabilities);
358 bd3d9e54 2021-09-05 stsp err = got_gitproto_match_capabilities(&my_capabilities,
359 bd3d9e54 2021-09-05 stsp &symrefs, server_capabilities,
360 bd3d9e54 2021-09-05 stsp got_capabilities, nitems(got_capabilities));
363 858b0dfb 2020-03-20 stsp if (chattygot)
364 2690194b 2020-03-21 stsp fprintf(stderr, "%s: my capabilities:%s\n",
365 a90356f7 2021-08-26 stsp getprogname(), my_capabilities != NULL ?
366 a90356f7 2021-08-26 stsp my_capabilities : "");
367 e70bf110 2020-03-22 stsp err = send_fetch_symrefs(ibuf, &symrefs);
370 7848a0e1 2020-03-19 stsp is_firstpkt = 0;
371 659e7fbd 2020-03-20 stsp if (!fetch_all_branches) {
372 659e7fbd 2020-03-20 stsp TAILQ_FOREACH(pe, &symrefs, entry) {
373 659e7fbd 2020-03-20 stsp const char *name = pe->path;
374 659e7fbd 2020-03-20 stsp const char *symref_target = pe->data;
375 659e7fbd 2020-03-20 stsp if (strcmp(name, GOT_REF_HEAD) != 0)
377 659e7fbd 2020-03-20 stsp default_branch = symref_target;
383 2690194b 2020-03-21 stsp if (strstr(refname, "^{}")) {
384 2690194b 2020-03-21 stsp if (chattygot) {
385 2690194b 2020-03-21 stsp fprintf(stderr, "%s: ignoring %s\n",
386 2690194b 2020-03-21 stsp getprogname(), refname);
391 659e7fbd 2020-03-20 stsp if (strncmp(refname, "refs/heads/", 11) == 0) {
392 41b0de12 2020-03-21 stsp if (fetch_all_branches || list_refs_only) {
393 4ba14133 2020-03-20 stsp found_branch = 1;
394 4ba14133 2020-03-20 stsp } else if (!TAILQ_EMPTY(wanted_branches)) {
395 4ba14133 2020-03-20 stsp TAILQ_FOREACH(pe, wanted_branches, entry) {
396 4ba14133 2020-03-20 stsp if (match_branch(refname, pe->path))
399 2690194b 2020-03-21 stsp if (pe == NULL) {
400 2690194b 2020-03-21 stsp if (chattygot) {
401 2690194b 2020-03-21 stsp fprintf(stderr,
402 2690194b 2020-03-21 stsp "%s: ignoring %s\n",
403 2690194b 2020-03-21 stsp getprogname(), refname);
407 4ba14133 2020-03-20 stsp found_branch = 1;
408 4ba14133 2020-03-20 stsp } else if (default_branch != NULL) {
409 2690194b 2020-03-21 stsp if (!match_branch(refname, default_branch)) {
410 2690194b 2020-03-21 stsp if (chattygot) {
411 2690194b 2020-03-21 stsp fprintf(stderr,
412 2690194b 2020-03-21 stsp "%s: ignoring %s\n",
413 2690194b 2020-03-21 stsp getprogname(), refname);
417 4ba14133 2020-03-20 stsp found_branch = 1;
419 659e7fbd 2020-03-20 stsp } else if (strncmp(refname, "refs/tags/", 10) != 0) {
420 0e4002ca 2020-03-21 stsp if (!TAILQ_EMPTY(wanted_refs)) {
421 0e4002ca 2020-03-21 stsp TAILQ_FOREACH(pe, wanted_refs, entry) {
422 0e4002ca 2020-03-21 stsp if (match_wanted_ref(refname, pe->path))
425 0e4002ca 2020-03-21 stsp if (pe == NULL) {
426 0e4002ca 2020-03-21 stsp if (chattygot) {
427 0e4002ca 2020-03-21 stsp fprintf(stderr,
428 0e4002ca 2020-03-21 stsp "%s: ignoring %s\n",
429 0e4002ca 2020-03-21 stsp getprogname(), refname);
433 0e4002ca 2020-03-21 stsp found_branch = 1;
434 0e4002ca 2020-03-21 stsp } else if (!list_refs_only) {
435 2690194b 2020-03-21 stsp if (chattygot) {
436 2690194b 2020-03-21 stsp fprintf(stderr, "%s: ignoring %s\n",
437 2690194b 2020-03-21 stsp getprogname(), refname);
443 cf875574 2020-03-18 stsp if (refsz == nref + 1) {
444 93658fb9 2020-03-18 stsp refsz *= 2;
445 14778466 2020-03-18 stsp have = reallocarray(have, refsz, sizeof(have[0]));
446 9ff10419 2020-03-18 stsp if (have == NULL) {
447 14778466 2020-03-18 stsp err = got_error_from_errno("reallocarray");
450 14778466 2020-03-18 stsp want = reallocarray(want, refsz, sizeof(want[0]));
451 9ff10419 2020-03-18 stsp if (want == NULL) {
452 14778466 2020-03-18 stsp err = got_error_from_errno("reallocarray");
456 00cd0e0a 2020-03-18 stsp if (!got_parse_sha1_digest(want[nref].sha1, id_str)) {
457 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_BAD_OBJ_ID_STR);
460 7848a0e1 2020-03-19 stsp match_remote_ref(have_refs, &have[nref], refname);
461 e70bf110 2020-03-22 stsp err = send_fetch_ref(ibuf, &want[nref], refname);
465 2690194b 2020-03-21 stsp if (chattygot)
466 2690194b 2020-03-21 stsp fprintf(stderr, "%s: %s will be fetched\n",
467 2690194b 2020-03-21 stsp getprogname(), refname);
468 2690194b 2020-03-21 stsp if (chattygot > 1) {
469 858b0dfb 2020-03-20 stsp char *theirs, *mine;
470 858b0dfb 2020-03-20 stsp err = got_object_id_str(&theirs, &want[nref]);
473 858b0dfb 2020-03-20 stsp err = got_object_id_str(&mine, &have[nref]);
475 858b0dfb 2020-03-20 stsp free(theirs);
478 2690194b 2020-03-21 stsp fprintf(stderr, "%s: remote: %s\n%s: local: %s\n",
479 659e7fbd 2020-03-20 stsp getprogname(), theirs, getprogname(), mine);
480 858b0dfb 2020-03-20 stsp free(theirs);
481 858b0dfb 2020-03-20 stsp free(mine);
486 41b0de12 2020-03-21 stsp if (list_refs_only)
489 659e7fbd 2020-03-20 stsp /* Abort if we haven't found any branch to fetch. */
490 659e7fbd 2020-03-20 stsp if (!found_branch) {
491 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_FETCH_NO_BRANCH);
495 cf875574 2020-03-18 stsp for (i = 0; i < nref; i++) {
496 93658fb9 2020-03-18 stsp if (got_object_id_cmp(&have[i], &want[i]) == 0)
498 93658fb9 2020-03-18 stsp got_sha1_digest_to_str(want[i].sha1, hashstr, sizeof(hashstr));
499 406106ee 2020-03-20 stsp n = snprintf(buf, sizeof(buf), "want %s%s\n", hashstr,
500 a90356f7 2021-08-26 stsp sent_my_capabilites || my_capabilities == NULL ?
501 a90356f7 2021-08-26 stsp "" : my_capabilities);
502 9ff10419 2020-03-18 stsp if (n >= sizeof(buf)) {
503 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
506 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
509 858b0dfb 2020-03-20 stsp sent_my_capabilites = 1;
512 f024663d 2021-09-05 stsp err = got_pkt_flushpkt(fd, chattygot);
516 3c912d14 2020-03-19 stsp if (nwant == 0)
519 cf875574 2020-03-18 stsp for (i = 0; i < nref; i++) {
520 93658fb9 2020-03-18 stsp if (got_object_id_cmp(&have[i], &zhash) == 0)
522 7848a0e1 2020-03-19 stsp got_sha1_digest_to_str(have[i].sha1, hashstr, sizeof(hashstr));
523 93658fb9 2020-03-18 stsp n = snprintf(buf, sizeof(buf), "have %s\n", hashstr);
524 9ff10419 2020-03-18 stsp if (n >= sizeof(buf)) {
525 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_NO_SPACE);
528 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
534 7848a0e1 2020-03-19 stsp while (nhave > 0 && !acked) {
535 7848a0e1 2020-03-19 stsp struct got_object_id common_id;
537 7848a0e1 2020-03-19 stsp /* The server should ACK the object IDs we need. */
538 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
541 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "ERR ", 4) == 0) {
542 7848a0e1 2020-03-19 stsp err = fetch_error(&buf[4], n - 4);
545 7848a0e1 2020-03-19 stsp if (n >= 4 && strncmp(buf, "NAK\n", 4) == 0) {
546 7848a0e1 2020-03-19 stsp /* Server has not located our objects yet. */
549 7848a0e1 2020-03-19 stsp if (n < 4 + SHA1_DIGEST_STRING_LENGTH ||
550 7848a0e1 2020-03-19 stsp strncmp(buf, "ACK ", 4) != 0) {
551 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
552 7848a0e1 2020-03-19 stsp "unexpected message from server");
555 7848a0e1 2020-03-19 stsp if (!got_parse_sha1_digest(common_id.sha1, buf + 4)) {
556 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
557 7848a0e1 2020-03-19 stsp "bad object ID in ACK packet from server");
563 93658fb9 2020-03-18 stsp n = snprintf(buf, sizeof(buf), "done\n");
564 f024663d 2021-09-05 stsp err = got_pkt_writepkt(fd, buf, n, chattygot);
568 7848a0e1 2020-03-19 stsp if (nhave == 0) {
569 f024663d 2021-09-05 stsp err = got_pkt_readpkt(&n, fd, buf, sizeof(buf), chattygot);
572 7848a0e1 2020-03-19 stsp if (n != 4 || strncmp(buf, "NAK\n", n) != 0) {
573 7848a0e1 2020-03-19 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
574 7848a0e1 2020-03-19 stsp "unexpected message from server");
579 858b0dfb 2020-03-20 stsp if (chattygot)
580 858b0dfb 2020-03-20 stsp fprintf(stderr, "%s: fetching...\n", getprogname());
582 531c3985 2020-03-18 stsp if (my_capabilities != NULL &&
583 531c3985 2020-03-18 stsp strstr(my_capabilities, GOT_CAPA_SIDE_BAND_64K) != NULL)
584 531c3985 2020-03-18 stsp have_sidebands = 1;
586 9ff10419 2020-03-18 stsp while (1) {
587 dc671e91 2020-03-24 stsp ssize_t r = 0;
588 531c3985 2020-03-18 stsp int datalen = -1;
590 531c3985 2020-03-18 stsp if (have_sidebands) {
591 f024663d 2021-09-05 stsp err = got_pkt_readhdr(&datalen, fd, chattygot);
594 531c3985 2020-03-18 stsp if (datalen <= 0)
597 531c3985 2020-03-18 stsp /* Read sideband channel ID (one byte). */
598 531c3985 2020-03-18 stsp r = read(fd, buf, 1);
599 531c3985 2020-03-18 stsp if (r == -1) {
600 531c3985 2020-03-18 stsp err = got_error_from_errno("read");
603 531c3985 2020-03-18 stsp if (r != 1) {
604 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
605 531c3985 2020-03-18 stsp "short packet");
608 531c3985 2020-03-18 stsp if (datalen > sizeof(buf) - 5) {
609 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
610 531c3985 2020-03-18 stsp "bad packet length");
613 531c3985 2020-03-18 stsp datalen--; /* sideband ID has been read */
614 531c3985 2020-03-18 stsp if (buf[0] == GOT_SIDEBAND_PACKFILE_DATA) {
615 531c3985 2020-03-18 stsp /* Read packfile data. */
616 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
619 531c3985 2020-03-18 stsp if (r != datalen) {
620 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
621 531c3985 2020-03-18 stsp "packet too short");
624 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_PROGRESS_INFO) {
625 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
628 531c3985 2020-03-18 stsp if (r != datalen) {
629 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
630 531c3985 2020-03-18 stsp "packet too short");
633 531c3985 2020-03-18 stsp err = fetch_progress(ibuf, buf, r);
637 531c3985 2020-03-18 stsp } else if (buf[0] == GOT_SIDEBAND_ERROR_INFO) {
638 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
641 531c3985 2020-03-18 stsp if (r != datalen) {
642 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
643 531c3985 2020-03-18 stsp "packet too short");
646 531c3985 2020-03-18 stsp err = fetch_error(buf, r);
648 98f64f14 2021-01-05 stsp } else if (buf[0] == 'A') {
649 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, datalen);
652 98f64f14 2021-01-05 stsp if (r != datalen) {
653 98f64f14 2021-01-05 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
654 98f64f14 2021-01-05 stsp "packet too short");
658 98f64f14 2021-01-05 stsp * Git server responds with ACK after 'done'
659 98f64f14 2021-01-05 stsp * even though multi_ack is disabled?!?
661 98f64f14 2021-01-05 stsp buf[r] = '\0';
662 98f64f14 2021-01-05 stsp if (strncmp(buf, "CK ", 3) == 0)
663 98f64f14 2021-01-05 stsp continue; /* ignore */
664 98f64f14 2021-01-05 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
665 98f64f14 2021-01-05 stsp "unexpected message from server");
668 531c3985 2020-03-18 stsp err = got_error_msg(GOT_ERR_BAD_PACKET,
669 531c3985 2020-03-18 stsp "unknown side-band received from server");
673 531c3985 2020-03-18 stsp /* No sideband channel. Every byte is packfile data. */
674 f024663d 2021-09-05 stsp err = got_pkt_readn(&r, fd, buf, sizeof buf);
677 531c3985 2020-03-18 stsp if (r <= 0)
682 dc671e91 2020-03-24 stsp * An expected SHA1 checksum sits at the end of the pack file.
683 dc671e91 2020-03-24 stsp * Since we don't know the file size ahead of time we have to
684 dc671e91 2020-03-24 stsp * keep SHA1_DIGEST_LENGTH bytes buffered and avoid mixing
685 dc671e91 2020-03-24 stsp * those bytes into our SHA1 checksum computation until we
686 dc671e91 2020-03-24 stsp * know for sure that additional pack file data bytes follow.
688 dc671e91 2020-03-24 stsp * We can assume r > 0 since otherwise the loop would exit.
690 dc671e91 2020-03-24 stsp if (r < SHA1_DIGEST_LENGTH) {
691 dc671e91 2020-03-24 stsp if (sha1_buf_len < SHA1_DIGEST_LENGTH) {
693 dc671e91 2020-03-24 stsp * If there's enough buffered + read data to
694 dc671e91 2020-03-24 stsp * fill up the buffer then shift a sufficient
695 dc671e91 2020-03-24 stsp * amount of bytes out at the front to make
696 dc671e91 2020-03-24 stsp * room, mixing those bytes into the checksum.
698 dc671e91 2020-03-24 stsp while (sha1_buf_len > 0 &&
699 dc671e91 2020-03-24 stsp sha1_buf_len + r > SHA1_DIGEST_LENGTH) {
700 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, 1);
701 dc671e91 2020-03-24 stsp memmove(sha1_buf, sha1_buf + 1, 1);
702 dc671e91 2020-03-24 stsp sha1_buf_len--;
705 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
706 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len, buf, r);
707 dc671e91 2020-03-24 stsp sha1_buf_len += r;
710 dc671e91 2020-03-24 stsp * Mix in previously buffered bytes which
711 dc671e91 2020-03-24 stsp * are not part of the checksum after all.
713 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, r);
715 dc671e91 2020-03-24 stsp /* Update potential checksum buffer. */
716 dc671e91 2020-03-24 stsp memmove(sha1_buf, sha1_buf + r,
717 dc671e91 2020-03-24 stsp sha1_buf_len - r);
718 dc671e91 2020-03-24 stsp memcpy(sha1_buf + sha1_buf_len - r, buf, r);
721 dc671e91 2020-03-24 stsp /* Mix in any previously buffered bytes. */
722 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, sha1_buf, sha1_buf_len);
724 dc671e91 2020-03-24 stsp /* Mix in bytes read minus potential checksum bytes. */
725 dc671e91 2020-03-24 stsp SHA1Update(&sha1_ctx, buf, r - SHA1_DIGEST_LENGTH);
727 dc671e91 2020-03-24 stsp /* Buffer potential checksum bytes. */
728 dc671e91 2020-03-24 stsp memcpy(sha1_buf, buf + r - SHA1_DIGEST_LENGTH,
729 dc671e91 2020-03-24 stsp SHA1_DIGEST_LENGTH);
730 dc671e91 2020-03-24 stsp sha1_buf_len = SHA1_DIGEST_LENGTH;
733 531c3985 2020-03-18 stsp /* Write packfile data to temporary pack file. */
734 fe53745c 2020-03-18 stsp w = write(packfd, buf, r);
735 9ff10419 2020-03-18 stsp if (w == -1) {
736 9ff10419 2020-03-18 stsp err = got_error_from_errno("write");
739 fe53745c 2020-03-18 stsp if (w != r) {
740 9ff10419 2020-03-18 stsp err = got_error(GOT_ERR_IO);
743 531c3985 2020-03-18 stsp packsz += w;
745 5672d305 2020-03-18 stsp /* Don't send too many progress privsep messages. */
746 5672d305 2020-03-18 stsp if (packsz > last_reported_packsz + 1024) {
747 e70bf110 2020-03-22 stsp err = send_fetch_download_progress(ibuf, packsz);
750 5672d305 2020-03-18 stsp last_reported_packsz = packsz;
753 e70bf110 2020-03-22 stsp err = send_fetch_download_progress(ibuf, packsz);
757 dc671e91 2020-03-24 stsp SHA1Final(pack_sha1, &sha1_ctx);
758 dc671e91 2020-03-24 stsp if (sha1_buf_len != SHA1_DIGEST_LENGTH ||
759 dc671e91 2020-03-24 stsp memcmp(pack_sha1, sha1_buf, sha1_buf_len) != 0) {
760 dc671e91 2020-03-24 stsp err = got_error_msg(GOT_ERR_BAD_PACKFILE,
761 dc671e91 2020-03-24 stsp "pack file checksum mismatch");
764 abe0f35f 2020-03-18 stsp TAILQ_FOREACH(pe, &symrefs, entry) {
765 abe0f35f 2020-03-18 stsp free((void *)pe->path);
766 abe0f35f 2020-03-18 stsp free(pe->data);
768 abe0f35f 2020-03-18 stsp got_pathlist_free(&symrefs);
769 9ff10419 2020-03-18 stsp free(have);
770 9ff10419 2020-03-18 stsp free(want);
771 00cd0e0a 2020-03-18 stsp free(id_str);
772 00cd0e0a 2020-03-18 stsp free(refname);
773 00cd0e0a 2020-03-18 stsp free(server_capabilities);
774 8f2d01a6 2020-03-18 stsp return err;
779 93658fb9 2020-03-18 stsp main(int argc, char **argv)
781 93658fb9 2020-03-18 stsp const struct got_error *err = NULL;
782 7848a0e1 2020-03-19 stsp int fetchfd, packfd = -1, i;
783 1d72a2a0 2020-03-24 stsp uint8_t pack_sha1[SHA1_DIGEST_LENGTH];
784 93658fb9 2020-03-18 stsp struct imsgbuf ibuf;
785 93658fb9 2020-03-18 stsp struct imsg imsg;
786 33501562 2020-03-18 stsp struct got_pathlist_head have_refs;
787 4ba14133 2020-03-20 stsp struct got_pathlist_head wanted_branches;
788 0e4002ca 2020-03-21 stsp struct got_pathlist_head wanted_refs;
789 7848a0e1 2020-03-19 stsp struct got_pathlist_entry *pe;
790 4ba14133 2020-03-20 stsp struct got_imsg_fetch_request fetch_req;
791 659e7fbd 2020-03-20 stsp struct got_imsg_fetch_have_ref href;
792 4ba14133 2020-03-20 stsp struct got_imsg_fetch_wanted_branch wbranch;
793 0e4002ca 2020-03-21 stsp struct got_imsg_fetch_wanted_ref wref;
794 4ba14133 2020-03-20 stsp size_t datalen;
796 7848a0e1 2020-03-19 stsp static int attached;
797 7848a0e1 2020-03-19 stsp while (!attached)
801 33501562 2020-03-18 stsp TAILQ_INIT(&have_refs);
802 4ba14133 2020-03-20 stsp TAILQ_INIT(&wanted_branches);
803 0e4002ca 2020-03-21 stsp TAILQ_INIT(&wanted_refs);
805 93658fb9 2020-03-18 stsp imsg_init(&ibuf, GOT_IMSG_FD_CHILD);
806 ffb5f621 2020-03-18 stsp #ifndef PROFILE
807 ffb5f621 2020-03-18 stsp /* revoke access to most system calls */
808 ffb5f621 2020-03-18 stsp if (pledge("stdio recvfd", NULL) == -1) {
809 ffb5f621 2020-03-18 stsp err = got_error_from_errno("pledge");
810 ffb5f621 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
814 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
816 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
817 93658fb9 2020-03-18 stsp err = NULL;
820 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
822 93658fb9 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_REQUEST) {
823 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
826 33501562 2020-03-18 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
827 4ba14133 2020-03-20 stsp if (datalen < sizeof(fetch_req)) {
828 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
831 4ba14133 2020-03-20 stsp memcpy(&fetch_req, imsg.data, sizeof(fetch_req));
832 4ba14133 2020-03-20 stsp fetchfd = imsg.fd;
833 4ba14133 2020-03-20 stsp imsg_free(&imsg);
835 2690194b 2020-03-21 stsp if (fetch_req.verbosity > 0)
836 2690194b 2020-03-21 stsp chattygot += fetch_req.verbosity;
838 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_have_refs; i++) {
839 7848a0e1 2020-03-19 stsp struct got_object_id *id;
840 7848a0e1 2020-03-19 stsp char *refname;
842 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
844 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
845 4ba14133 2020-03-20 stsp err = NULL;
848 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
850 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_HAVE_REF) {
851 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
854 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
855 4ba14133 2020-03-20 stsp if (datalen < sizeof(href)) {
856 659e7fbd 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
859 4ba14133 2020-03-20 stsp memcpy(&href, imsg.data, sizeof(href));
860 4ba14133 2020-03-20 stsp if (datalen - sizeof(href) < href.name_len) {
861 7848a0e1 2020-03-19 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
864 659e7fbd 2020-03-20 stsp refname = malloc(href.name_len + 1);
865 7848a0e1 2020-03-19 stsp if (refname == NULL) {
866 659e7fbd 2020-03-20 stsp err = got_error_from_errno("malloc");
869 4ba14133 2020-03-20 stsp memcpy(refname, imsg.data + sizeof(href), href.name_len);
870 659e7fbd 2020-03-20 stsp refname[href.name_len] = '\0';
872 7848a0e1 2020-03-19 stsp id = malloc(sizeof(*id));
873 7848a0e1 2020-03-19 stsp if (id == NULL) {
874 7848a0e1 2020-03-19 stsp free(refname);
875 7848a0e1 2020-03-19 stsp err = got_error_from_errno("malloc");
878 659e7fbd 2020-03-20 stsp memcpy(id->sha1, href.id, SHA1_DIGEST_LENGTH);
879 7848a0e1 2020-03-19 stsp err = got_pathlist_append(&have_refs, refname, id);
881 7848a0e1 2020-03-19 stsp free(refname);
886 4ba14133 2020-03-20 stsp imsg_free(&imsg);
889 4ba14133 2020-03-20 stsp for (i = 0; i < fetch_req.n_wanted_branches; i++) {
890 4ba14133 2020-03-20 stsp char *refname;
892 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
894 4ba14133 2020-03-20 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
895 4ba14133 2020-03-20 stsp err = NULL;
898 4ba14133 2020-03-20 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
900 4ba14133 2020-03-20 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_BRANCH) {
901 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
904 4ba14133 2020-03-20 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
905 4ba14133 2020-03-20 stsp if (datalen < sizeof(wbranch)) {
906 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
909 4ba14133 2020-03-20 stsp memcpy(&wbranch, imsg.data, sizeof(wbranch));
910 4ba14133 2020-03-20 stsp if (datalen - sizeof(wbranch) < wbranch.name_len) {
911 4ba14133 2020-03-20 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
914 4ba14133 2020-03-20 stsp refname = malloc(wbranch.name_len + 1);
915 4ba14133 2020-03-20 stsp if (refname == NULL) {
916 4ba14133 2020-03-20 stsp err = got_error_from_errno("malloc");
919 4ba14133 2020-03-20 stsp memcpy(refname, imsg.data + sizeof(wbranch), wbranch.name_len);
920 4ba14133 2020-03-20 stsp refname[wbranch.name_len] = '\0';
922 4ba14133 2020-03-20 stsp err = got_pathlist_append(&wanted_branches, refname, NULL);
924 4ba14133 2020-03-20 stsp free(refname);
928 4ba14133 2020-03-20 stsp imsg_free(&imsg);
931 0e4002ca 2020-03-21 stsp for (i = 0; i < fetch_req.n_wanted_refs; i++) {
932 0e4002ca 2020-03-21 stsp char *refname;
934 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
936 0e4002ca 2020-03-21 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
937 0e4002ca 2020-03-21 stsp err = NULL;
940 0e4002ca 2020-03-21 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
942 0e4002ca 2020-03-21 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_WANTED_REF) {
943 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
946 0e4002ca 2020-03-21 stsp datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
947 0e4002ca 2020-03-21 stsp if (datalen < sizeof(wref)) {
948 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
951 0e4002ca 2020-03-21 stsp memcpy(&wref, imsg.data, sizeof(wref));
952 0e4002ca 2020-03-21 stsp if (datalen - sizeof(wref) < wref.name_len) {
953 0e4002ca 2020-03-21 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
956 0e4002ca 2020-03-21 stsp refname = malloc(wref.name_len + 1);
957 0e4002ca 2020-03-21 stsp if (refname == NULL) {
958 0e4002ca 2020-03-21 stsp err = got_error_from_errno("malloc");
961 0e4002ca 2020-03-21 stsp memcpy(refname, imsg.data + sizeof(wref), wref.name_len);
962 0e4002ca 2020-03-21 stsp refname[wref.name_len] = '\0';
964 0e4002ca 2020-03-21 stsp err = got_pathlist_append(&wanted_refs, refname, NULL);
966 0e4002ca 2020-03-21 stsp free(refname);
970 0e4002ca 2020-03-21 stsp imsg_free(&imsg);
973 9ca26ac3 2021-08-06 stsp err = got_privsep_recv_imsg(&imsg, &ibuf, 0);
975 93658fb9 2020-03-18 stsp if (err->code == GOT_ERR_PRIVSEP_PIPE)
976 93658fb9 2020-03-18 stsp err = NULL;
979 93658fb9 2020-03-18 stsp if (imsg.hdr.type == GOT_IMSG_STOP)
981 f826addf 2020-03-18 stsp if (imsg.hdr.type != GOT_IMSG_FETCH_OUTFD) {
982 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_MSG);
985 93658fb9 2020-03-18 stsp if (imsg.hdr.len - IMSG_HEADER_SIZE != 0) {
986 93658fb9 2020-03-18 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
989 93658fb9 2020-03-18 stsp packfd = imsg.fd;
991 1d72a2a0 2020-03-24 stsp err = fetch_pack(fetchfd, packfd, pack_sha1, &have_refs,
992 41b0de12 2020-03-21 stsp fetch_req.fetch_all_branches, &wanted_branches,
993 0e4002ca 2020-03-21 stsp &wanted_refs, fetch_req.list_refs_only, &ibuf);
995 7848a0e1 2020-03-19 stsp TAILQ_FOREACH(pe, &have_refs, entry) {
996 7848a0e1 2020-03-19 stsp free((char *)pe->path);
997 7848a0e1 2020-03-19 stsp free(pe->data);
999 7848a0e1 2020-03-19 stsp got_pathlist_free(&have_refs);
1000 4ba14133 2020-03-20 stsp TAILQ_FOREACH(pe, &wanted_branches, entry)
1001 4ba14133 2020-03-20 stsp free((char *)pe->path);
1002 4ba14133 2020-03-20 stsp got_pathlist_free(&wanted_branches);
1003 0bec957e 2020-03-21 stsp if (fetchfd != -1 && close(fetchfd) == -1 && err == NULL)
1004 0bec957e 2020-03-21 stsp err = got_error_from_errno("close");
1005 9ff10419 2020-03-18 stsp if (packfd != -1 && close(packfd) == -1 && err == NULL)
1006 9ff10419 2020-03-18 stsp err = got_error_from_errno("close");
1007 9ff10419 2020-03-18 stsp if (err != NULL)
1008 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
1010 1d72a2a0 2020-03-24 stsp err = send_fetch_done(&ibuf, pack_sha1);
1011 cf875574 2020-03-18 stsp if (err != NULL) {
1012 93658fb9 2020-03-18 stsp fprintf(stderr, "%s: %s\n", getprogname(), err->msg);
1013 93658fb9 2020-03-18 stsp got_privsep_send_error(&ibuf, err);
