2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4 d71d75ad 2017-11-05 stsp * Permission to use, copy, modify, and distribute this software for any
5 d71d75ad 2017-11-05 stsp * purpose with or without fee is hereby granted, provided that the above
6 d71d75ad 2017-11-05 stsp * copyright notice and this permission notice appear in all copies.
8 d71d75ad 2017-11-05 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 d71d75ad 2017-11-05 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 d71d75ad 2017-11-05 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 d71d75ad 2017-11-05 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 d71d75ad 2017-11-05 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 d71d75ad 2017-11-05 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 d71d75ad 2017-11-05 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 2178c42e 2018-04-22 stsp #include <sys/types.h>
18 0ffeb3c2 2017-11-26 stsp #include <sys/stat.h>
19 d1cda826 2017-11-06 stsp #include <sys/queue.h>
20 2178c42e 2018-04-22 stsp #include <sys/uio.h>
21 2178c42e 2018-04-22 stsp #include <sys/socket.h>
22 2178c42e 2018-04-22 stsp #include <sys/wait.h>
23 876c234b 2018-09-10 stsp #include <sys/syslimits.h>
24 b48e2ddb 2019-05-22 stsp #include <sys/resource.h>
26 a1fd68d8 2018-01-12 stsp #include <errno.h>
27 2178c42e 2018-04-22 stsp #include <fcntl.h>
28 d71d75ad 2017-11-05 stsp #include <stdio.h>
29 ab9a70b2 2017-11-06 stsp #include <stdlib.h>
30 ab9a70b2 2017-11-06 stsp #include <string.h>
31 2178c42e 2018-04-22 stsp #include <stdint.h>
32 d71d75ad 2017-11-05 stsp #include <sha1.h>
33 ab9a70b2 2017-11-06 stsp #include <zlib.h>
34 ab9a70b2 2017-11-06 stsp #include <ctype.h>
35 e40622f4 2020-07-23 stsp #include <libgen.h>
36 ab9a70b2 2017-11-06 stsp #include <limits.h>
37 2178c42e 2018-04-22 stsp #include <imsg.h>
38 788c352e 2018-06-16 stsp #include <time.h>
40 ab9a70b2 2017-11-06 stsp #include "got_error.h"
41 d71d75ad 2017-11-05 stsp #include "got_object.h"
42 ab9a70b2 2017-11-06 stsp #include "got_repository.h"
43 511a516b 2018-05-19 stsp #include "got_opentemp.h"
44 324d37e7 2019-05-11 stsp #include "got_path.h"
46 718b3ab0 2018-03-17 stsp #include "got_lib_sha1.h"
47 718b3ab0 2018-03-17 stsp #include "got_lib_delta.h"
48 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
49 718b3ab0 2018-03-17 stsp #include "got_lib_object.h"
50 2178c42e 2018-04-22 stsp #include "got_lib_privsep.h"
51 6bef87be 2018-09-11 stsp #include "got_lib_object_idcache.h"
52 6bef87be 2018-09-11 stsp #include "got_lib_object_cache.h"
53 ad242220 2018-09-08 stsp #include "got_lib_object_parse.h"
54 15a94983 2018-12-23 stsp #include "got_lib_pack.h"
55 7bb0daa1 2018-06-21 stsp #include "got_lib_repository.h"
58 ab9a70b2 2017-11-06 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
61 3235492e 2018-04-01 stsp struct got_object_id *
62 3235492e 2018-04-01 stsp got_object_get_id(struct got_object *obj)
64 6402fb3c 2018-09-15 stsp return &obj->id;
67 bacc9935 2018-05-20 stsp const struct got_error *
68 bacc9935 2018-05-20 stsp got_object_get_id_str(char **outbuf, struct got_object *obj)
70 bacc9935 2018-05-20 stsp return got_object_id_str(outbuf, &obj->id);
73 15a94983 2018-12-23 stsp const struct got_error *
74 15a94983 2018-12-23 stsp got_object_get_type(int *type, struct got_repository *repo,
75 15a94983 2018-12-23 stsp struct got_object_id *id)
77 15a94983 2018-12-23 stsp const struct got_error *err = NULL;
78 15a94983 2018-12-23 stsp struct got_object *obj;
80 15a94983 2018-12-23 stsp err = got_object_open(&obj, repo, id);
84 b107e67f 2018-01-19 stsp switch (obj->type) {
85 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_COMMIT:
86 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_TREE:
87 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_BLOB:
88 b107e67f 2018-01-19 stsp case GOT_OBJ_TYPE_TAG:
89 15a94983 2018-12-23 stsp *type = obj->type;
92 15a94983 2018-12-23 stsp err = got_error(GOT_ERR_OBJ_TYPE);
96 15a94983 2018-12-23 stsp got_object_close(obj);
100 90bdb554 2019-04-11 stsp const struct got_error *
101 90bdb554 2019-04-11 stsp got_object_get_path(char **path, struct got_object_id *id,
102 90bdb554 2019-04-11 stsp struct got_repository *repo)
104 ab9a70b2 2017-11-06 stsp const struct got_error *err = NULL;
105 7a132809 2018-07-23 stsp char *hex = NULL;
106 41d2888b 2019-08-11 stsp char *path_objects;
108 e6b1056e 2018-04-22 stsp *path = NULL;
110 41d2888b 2019-08-11 stsp path_objects = got_repo_get_path_objects(repo);
111 ab9a70b2 2017-11-06 stsp if (path_objects == NULL)
112 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_objects");
114 ef0981d5 2018-02-12 stsp err = got_object_id_str(&hex, id);
118 d1cda826 2017-11-06 stsp if (asprintf(path, "%s/%.2x/%s", path_objects,
119 d1cda826 2017-11-06 stsp id->sha1[0], hex + 2) == -1)
120 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
124 d1cda826 2017-11-06 stsp free(path_objects);
125 d1cda826 2017-11-06 stsp return err;
128 4ee4114f 2018-01-23 stsp static const struct got_error *
129 4796fb13 2018-12-23 stsp open_loose_object(int *fd, struct got_object_id *id,
130 4796fb13 2018-12-23 stsp struct got_repository *repo)
132 d1cda826 2017-11-06 stsp const struct got_error *err = NULL;
133 a1fd68d8 2018-01-12 stsp char *path;
135 90bdb554 2019-04-11 stsp err = got_object_get_path(&path, id, repo);
137 d1cda826 2017-11-06 stsp return err;
138 a5b57ccf 2019-04-11 stsp *fd = open(path, O_RDONLY | O_NOFOLLOW);
139 d5003b79 2018-04-22 stsp if (*fd == -1) {
140 e82b1d81 2019-07-27 stsp err = got_error_from_errno2("open", path);
144 4558fcd4 2018-01-14 stsp free(path);
145 2090a03d 2018-09-09 stsp return err;
148 2090a03d 2018-09-09 stsp static const struct got_error *
149 2090a03d 2018-09-09 stsp get_packfile_path(char **path_packfile, struct got_packidx *packidx)
151 2090a03d 2018-09-09 stsp size_t size;
153 2090a03d 2018-09-09 stsp /* Packfile path contains ".pack" instead of ".idx", so add one byte. */
154 2090a03d 2018-09-09 stsp size = strlen(packidx->path_packidx) + 2;
155 2090a03d 2018-09-09 stsp if (size < GOT_PACKFILE_NAMELEN + 1)
156 63f810e6 2020-02-29 stsp return got_error_path(packidx->path_packidx, GOT_ERR_BAD_PATH);
158 08451938 2018-11-05 stsp *path_packfile = malloc(size);
159 2090a03d 2018-09-09 stsp if (*path_packfile == NULL)
160 638f9024 2019-05-13 stsp return got_error_from_errno("malloc");
162 2090a03d 2018-09-09 stsp /* Copy up to and excluding ".idx". */
163 2090a03d 2018-09-09 stsp if (strlcpy(*path_packfile, packidx->path_packidx,
164 2090a03d 2018-09-09 stsp size - strlen(GOT_PACKIDX_SUFFIX) - 1) >= size)
165 2090a03d 2018-09-09 stsp return got_error(GOT_ERR_NO_SPACE);
167 2090a03d 2018-09-09 stsp if (strlcat(*path_packfile, GOT_PACKFILE_SUFFIX, size) >= size)
168 2090a03d 2018-09-09 stsp return got_error(GOT_ERR_NO_SPACE);
170 2090a03d 2018-09-09 stsp return NULL;
173 2090a03d 2018-09-09 stsp static const struct got_error *
174 a158c901 2018-12-23 stsp request_packed_object(struct got_object **obj, struct got_pack *pack, int idx,
175 a158c901 2018-12-23 stsp struct got_object_id *id)
177 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
178 a158c901 2018-12-23 stsp struct imsgbuf *ibuf = pack->privsep_child->ibuf;
180 a158c901 2018-12-23 stsp err = got_privsep_send_packed_obj_req(ibuf, idx, id);
182 a158c901 2018-12-23 stsp return err;
184 a158c901 2018-12-23 stsp err = got_privsep_recv_obj(obj, ibuf);
186 a158c901 2018-12-23 stsp return err;
188 a158c901 2018-12-23 stsp memcpy(&(*obj)->id, id, sizeof((*obj)->id));
190 a158c901 2018-12-23 stsp return NULL;
193 da506691 2019-05-22 stsp static void
194 b48e2ddb 2019-05-22 stsp set_max_datasize(void)
196 b48e2ddb 2019-05-22 stsp struct rlimit rl;
198 b48e2ddb 2019-05-22 stsp if (getrlimit(RLIMIT_DATA, &rl) != 0)
201 b48e2ddb 2019-05-22 stsp rl.rlim_cur = rl.rlim_max;
202 b48e2ddb 2019-05-22 stsp setrlimit(RLIMIT_DATA, &rl);
205 a158c901 2018-12-23 stsp static const struct got_error *
206 711fb6e8 2018-12-23 stsp start_pack_privsep_child(struct got_pack *pack, struct got_packidx *packidx)
208 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
209 a158c901 2018-12-23 stsp int imsg_fds[2];
211 a158c901 2018-12-23 stsp struct imsgbuf *ibuf;
213 a158c901 2018-12-23 stsp ibuf = calloc(1, sizeof(*ibuf));
214 a158c901 2018-12-23 stsp if (ibuf == NULL)
215 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
217 a158c901 2018-12-23 stsp pack->privsep_child = calloc(1, sizeof(*pack->privsep_child));
218 a158c901 2018-12-23 stsp if (pack->privsep_child == NULL) {
219 638f9024 2019-05-13 stsp err = got_error_from_errno("calloc");
220 a158c901 2018-12-23 stsp free(ibuf);
221 a158c901 2018-12-23 stsp return err;
224 a158c901 2018-12-23 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
225 638f9024 2019-05-13 stsp err = got_error_from_errno("socketpair");
229 a158c901 2018-12-23 stsp pid = fork();
230 a158c901 2018-12-23 stsp if (pid == -1) {
231 638f9024 2019-05-13 stsp err = got_error_from_errno("fork");
233 a158c901 2018-12-23 stsp } else if (pid == 0) {
234 b48e2ddb 2019-05-22 stsp set_max_datasize();
235 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_PACK,
236 a158c901 2018-12-23 stsp pack->path_packfile);
237 a158c901 2018-12-23 stsp /* not reached */
240 3a6ce05a 2019-02-11 stsp if (close(imsg_fds[1]) != 0)
241 638f9024 2019-05-13 stsp return got_error_from_errno("close");
242 a158c901 2018-12-23 stsp pack->privsep_child->imsg_fd = imsg_fds[0];
243 a158c901 2018-12-23 stsp pack->privsep_child->pid = pid;
244 a158c901 2018-12-23 stsp imsg_init(ibuf, imsg_fds[0]);
245 a158c901 2018-12-23 stsp pack->privsep_child->ibuf = ibuf;
247 a158c901 2018-12-23 stsp err = got_privsep_init_pack_child(ibuf, pack, packidx);
249 a158c901 2018-12-23 stsp const struct got_error *child_err;
250 a158c901 2018-12-23 stsp err = got_privsep_send_stop(pack->privsep_child->imsg_fd);
251 a158c901 2018-12-23 stsp child_err = got_privsep_wait_for_child(
252 a158c901 2018-12-23 stsp pack->privsep_child->pid);
253 a158c901 2018-12-23 stsp if (child_err && err == NULL)
254 a158c901 2018-12-23 stsp err = child_err;
258 a158c901 2018-12-23 stsp free(ibuf);
259 a158c901 2018-12-23 stsp free(pack->privsep_child);
260 a158c901 2018-12-23 stsp pack->privsep_child = NULL;
262 a158c901 2018-12-23 stsp return err;
265 711fb6e8 2018-12-23 stsp static const struct got_error *
266 711fb6e8 2018-12-23 stsp read_packed_object_privsep(struct got_object **obj,
267 711fb6e8 2018-12-23 stsp struct got_repository *repo, struct got_pack *pack,
268 711fb6e8 2018-12-23 stsp struct got_packidx *packidx, int idx, struct got_object_id *id)
270 711fb6e8 2018-12-23 stsp const struct got_error *err = NULL;
272 711fb6e8 2018-12-23 stsp if (pack->privsep_child)
273 711fb6e8 2018-12-23 stsp return request_packed_object(obj, pack, idx, id);
275 711fb6e8 2018-12-23 stsp err = start_pack_privsep_child(pack, packidx);
277 711fb6e8 2018-12-23 stsp return err;
279 711fb6e8 2018-12-23 stsp return request_packed_object(obj, pack, idx, id);
283 a158c901 2018-12-23 stsp static const struct got_error *
284 2090a03d 2018-09-09 stsp open_packed_object(struct got_object **obj, struct got_object_id *id,
285 2090a03d 2018-09-09 stsp struct got_repository *repo)
287 2090a03d 2018-09-09 stsp const struct got_error *err = NULL;
288 2090a03d 2018-09-09 stsp struct got_pack *pack = NULL;
289 2090a03d 2018-09-09 stsp struct got_packidx *packidx = NULL;
291 2090a03d 2018-09-09 stsp char *path_packfile;
293 2090a03d 2018-09-09 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
295 2090a03d 2018-09-09 stsp return err;
297 2090a03d 2018-09-09 stsp err = get_packfile_path(&path_packfile, packidx);
299 2090a03d 2018-09-09 stsp return err;
301 2090a03d 2018-09-09 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
302 2090a03d 2018-09-09 stsp if (pack == NULL) {
303 2090a03d 2018-09-09 stsp err = got_repo_cache_pack(&pack, repo, path_packfile, packidx);
308 a158c901 2018-12-23 stsp err = read_packed_object_privsep(obj, repo, pack, packidx, idx, id);
312 2090a03d 2018-09-09 stsp free(path_packfile);
313 4558fcd4 2018-01-14 stsp return err;
316 9f2369b0 2018-12-24 stsp static const struct got_error *
317 9f2369b0 2018-12-24 stsp request_object(struct got_object **obj, struct got_repository *repo, int fd)
319 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
320 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
322 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].ibuf;
324 aea5f015 2018-12-24 stsp err = got_privsep_send_obj_req(ibuf, fd);
326 9f2369b0 2018-12-24 stsp return err;
328 9f2369b0 2018-12-24 stsp return got_privsep_recv_obj(obj, ibuf);
331 9f2369b0 2018-12-24 stsp static const struct got_error *
332 9f2369b0 2018-12-24 stsp read_object_header_privsep(struct got_object **obj, struct got_repository *repo,
333 9f2369b0 2018-12-24 stsp int obj_fd)
335 ddc7b220 2019-09-08 stsp const struct got_error *err;
336 9f2369b0 2018-12-24 stsp int imsg_fds[2];
338 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
340 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].imsg_fd != -1)
341 9f2369b0 2018-12-24 stsp return request_object(obj, repo, obj_fd);
343 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
344 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
345 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
347 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
348 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
349 ddc7b220 2019-09-08 stsp free(ibuf);
350 ddc7b220 2019-09-08 stsp return err;
353 9f2369b0 2018-12-24 stsp pid = fork();
354 ddc7b220 2019-09-08 stsp if (pid == -1) {
355 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
356 ddc7b220 2019-09-08 stsp free(ibuf);
357 ddc7b220 2019-09-08 stsp return err;
359 9f2369b0 2018-12-24 stsp else if (pid == 0) {
360 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_OBJECT,
361 9f2369b0 2018-12-24 stsp repo->path);
362 9f2369b0 2018-12-24 stsp /* not reached */
365 ddc7b220 2019-09-08 stsp if (close(imsg_fds[1]) != 0) {
366 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
367 ddc7b220 2019-09-08 stsp free(ibuf);
368 ddc7b220 2019-09-08 stsp return err;
370 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].imsg_fd =
371 9f2369b0 2018-12-24 stsp imsg_fds[0];
372 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].pid = pid;
373 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
374 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_OBJECT].ibuf = ibuf;
376 9f2369b0 2018-12-24 stsp return request_object(obj, repo, obj_fd);
380 4558fcd4 2018-01-14 stsp const struct got_error *
381 4558fcd4 2018-01-14 stsp got_object_open(struct got_object **obj, struct got_repository *repo,
382 4558fcd4 2018-01-14 stsp struct got_object_id *id)
384 6c00b545 2018-01-17 stsp const struct got_error *err = NULL;
385 6c00b545 2018-01-17 stsp char *path;
388 7bb0daa1 2018-06-21 stsp *obj = got_repo_get_cached_object(repo, id);
389 7bb0daa1 2018-06-21 stsp if (*obj != NULL) {
390 7bb0daa1 2018-06-21 stsp (*obj)->refcnt++;
391 7bb0daa1 2018-06-21 stsp return NULL;
394 e82b1d81 2019-07-27 stsp err = open_packed_object(obj, id, repo);
395 e82b1d81 2019-07-27 stsp if (err && err->code != GOT_ERR_NO_OBJ)
396 e82b1d81 2019-07-27 stsp return err;
397 e82b1d81 2019-07-27 stsp if (*obj) {
398 e82b1d81 2019-07-27 stsp (*obj)->refcnt++;
399 e82b1d81 2019-07-27 stsp return got_repo_cache_object(repo, id, *obj);
402 90bdb554 2019-04-11 stsp err = got_object_get_path(&path, id, repo);
404 4558fcd4 2018-01-14 stsp return err;
406 a5b57ccf 2019-04-11 stsp fd = open(path, O_RDONLY | O_NOFOLLOW);
407 2178c42e 2018-04-22 stsp if (fd == -1) {
408 e82b1d81 2019-07-27 stsp if (errno == ENOENT)
409 e82b1d81 2019-07-27 stsp err = got_error_no_obj(id);
411 638f9024 2019-05-13 stsp err = got_error_from_errno2("open", path);
414 9f2369b0 2018-12-24 stsp err = read_object_header_privsep(obj, repo, fd);
417 ab9a70b2 2017-11-06 stsp memcpy((*obj)->id.sha1, id->sha1, SHA1_DIGEST_LENGTH);
420 59790a32 2018-09-15 stsp (*obj)->refcnt++;
421 59790a32 2018-09-15 stsp err = got_repo_cache_object(repo, id, *obj);
423 6c00b545 2018-01-17 stsp free(path);
424 ab9a70b2 2017-11-06 stsp return err;
428 6dfa2fd3 2018-02-12 stsp const struct got_error *
429 6dfa2fd3 2018-02-12 stsp got_object_open_by_id_str(struct got_object **obj, struct got_repository *repo,
430 6dfa2fd3 2018-02-12 stsp const char *id_str)
432 6dfa2fd3 2018-02-12 stsp struct got_object_id id;
434 6dfa2fd3 2018-02-12 stsp if (!got_parse_sha1_digest(id.sha1, id_str))
435 6dd1ece6 2019-11-10 stsp return got_error_path(id_str, GOT_ERR_BAD_OBJ_ID_STR);
437 6dfa2fd3 2018-02-12 stsp return got_object_open(obj, repo, &id);
440 15a94983 2018-12-23 stsp const struct got_error *
441 15a94983 2018-12-23 stsp got_object_resolve_id_str(struct got_object_id **id,
442 15a94983 2018-12-23 stsp struct got_repository *repo, const char *id_str)
444 15a94983 2018-12-23 stsp const struct got_error *err = NULL;
445 15a94983 2018-12-23 stsp struct got_object *obj;
447 15a94983 2018-12-23 stsp err = got_object_open_by_id_str(&obj, repo, id_str);
449 15a94983 2018-12-23 stsp return err;
451 15a94983 2018-12-23 stsp *id = got_object_id_dup(got_object_get_id(obj));
452 15a94983 2018-12-23 stsp got_object_close(obj);
453 15a94983 2018-12-23 stsp if (*id == NULL)
454 638f9024 2019-05-13 stsp return got_error_from_errno("got_object_id_dup");
456 15a94983 2018-12-23 stsp return NULL;
459 434025f3 2018-09-16 stsp static const struct got_error *
460 a158c901 2018-12-23 stsp request_packed_commit(struct got_commit_object **commit, struct got_pack *pack,
461 a158c901 2018-12-23 stsp int pack_idx, struct got_object_id *id)
463 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
465 a158c901 2018-12-23 stsp err = got_privsep_send_commit_req(pack->privsep_child->ibuf, -1, id,
468 a158c901 2018-12-23 stsp return err;
470 ca6e02ac 2020-01-07 stsp err = got_privsep_recv_commit(commit, pack->privsep_child->ibuf);
472 ca6e02ac 2020-01-07 stsp return err;
474 ca6e02ac 2020-01-07 stsp (*commit)->flags |= GOT_COMMIT_FLAG_PACKED;
475 ca6e02ac 2020-01-07 stsp return NULL;
478 a158c901 2018-12-23 stsp static const struct got_error *
479 a158c901 2018-12-23 stsp read_packed_commit_privsep(struct got_commit_object **commit,
480 a158c901 2018-12-23 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
481 a158c901 2018-12-23 stsp struct got_object_id *id)
483 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
485 a158c901 2018-12-23 stsp if (pack->privsep_child)
486 a158c901 2018-12-23 stsp return request_packed_commit(commit, pack, idx, id);
488 711fb6e8 2018-12-23 stsp err = start_pack_privsep_child(pack, packidx);
490 a158c901 2018-12-23 stsp return err;
492 711fb6e8 2018-12-23 stsp return request_packed_commit(commit, pack, idx, id);
495 9f2369b0 2018-12-24 stsp static const struct got_error *
496 9f2369b0 2018-12-24 stsp request_commit(struct got_commit_object **commit, struct got_repository *repo,
499 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
500 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
502 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].ibuf;
504 9f2369b0 2018-12-24 stsp err = got_privsep_send_commit_req(ibuf, fd, NULL, -1);
506 9f2369b0 2018-12-24 stsp return err;
508 9f2369b0 2018-12-24 stsp return got_privsep_recv_commit(commit, ibuf);
511 9f2369b0 2018-12-24 stsp static const struct got_error *
512 9f2369b0 2018-12-24 stsp read_commit_privsep(struct got_commit_object **commit, int obj_fd,
513 9f2369b0 2018-12-24 stsp struct got_repository *repo)
515 ddc7b220 2019-09-08 stsp const struct got_error *err;
516 9f2369b0 2018-12-24 stsp int imsg_fds[2];
518 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
520 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].imsg_fd != -1)
521 9f2369b0 2018-12-24 stsp return request_commit(commit, repo, obj_fd);
523 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
524 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
525 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
527 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
528 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
529 ddc7b220 2019-09-08 stsp free(ibuf);
530 ddc7b220 2019-09-08 stsp return err;
533 9f2369b0 2018-12-24 stsp pid = fork();
534 ddc7b220 2019-09-08 stsp if (pid == -1) {
535 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
536 ddc7b220 2019-09-08 stsp free(ibuf);
537 ddc7b220 2019-09-08 stsp return err;
539 9f2369b0 2018-12-24 stsp else if (pid == 0) {
540 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_COMMIT,
541 9f2369b0 2018-12-24 stsp repo->path);
542 9f2369b0 2018-12-24 stsp /* not reached */
545 ddc7b220 2019-09-08 stsp if (close(imsg_fds[1]) != 0) {
546 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
547 ddc7b220 2019-09-08 stsp free(ibuf);
548 ddc7b220 2019-09-08 stsp return err;
550 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].imsg_fd =
551 9f2369b0 2018-12-24 stsp imsg_fds[0];
552 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].pid = pid;
553 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
554 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_COMMIT].ibuf = ibuf;
556 9f2369b0 2018-12-24 stsp return request_commit(commit, repo, obj_fd);
560 a158c901 2018-12-23 stsp static const struct got_error *
561 434025f3 2018-09-16 stsp open_commit(struct got_commit_object **commit,
562 1785f84a 2018-12-23 stsp struct got_repository *repo, struct got_object_id *id, int check_cache)
564 434025f3 2018-09-16 stsp const struct got_error *err = NULL;
565 1785f84a 2018-12-23 stsp struct got_packidx *packidx = NULL;
567 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
569 434025f3 2018-09-16 stsp if (check_cache) {
570 1785f84a 2018-12-23 stsp *commit = got_repo_get_cached_commit(repo, id);
571 434025f3 2018-09-16 stsp if (*commit != NULL) {
572 434025f3 2018-09-16 stsp (*commit)->refcnt++;
573 434025f3 2018-09-16 stsp return NULL;
576 434025f3 2018-09-16 stsp *commit = NULL;
578 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
579 e82b1d81 2019-07-27 stsp if (err == NULL) {
580 1785f84a 2018-12-23 stsp struct got_pack *pack = NULL;
582 1785f84a 2018-12-23 stsp err = get_packfile_path(&path_packfile, packidx);
584 1785f84a 2018-12-23 stsp return err;
586 1785f84a 2018-12-23 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
587 434025f3 2018-09-16 stsp if (pack == NULL) {
588 1785f84a 2018-12-23 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
593 a158c901 2018-12-23 stsp err = read_packed_commit_privsep(commit, pack,
594 1785f84a 2018-12-23 stsp packidx, idx, id);
595 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
598 e82b1d81 2019-07-27 stsp err = open_loose_object(&fd, id, repo);
600 e82b1d81 2019-07-27 stsp return err;
601 9f2369b0 2018-12-24 stsp err = read_commit_privsep(commit, fd, repo);
604 434025f3 2018-09-16 stsp if (err == NULL) {
605 434025f3 2018-09-16 stsp (*commit)->refcnt++;
606 1785f84a 2018-12-23 stsp err = got_repo_cache_commit(repo, id, *commit);
609 8d2c5ea3 2019-08-13 stsp free(path_packfile);
610 e32baab7 2018-11-05 stsp return err;
613 e32baab7 2018-11-05 stsp const struct got_error *
614 e32baab7 2018-11-05 stsp got_object_open_as_commit(struct got_commit_object **commit,
615 e32baab7 2018-11-05 stsp struct got_repository *repo, struct got_object_id *id)
617 e32baab7 2018-11-05 stsp *commit = got_repo_get_cached_commit(repo, id);
618 e32baab7 2018-11-05 stsp if (*commit != NULL) {
619 e32baab7 2018-11-05 stsp (*commit)->refcnt++;
620 e32baab7 2018-11-05 stsp return NULL;
623 1785f84a 2018-12-23 stsp return open_commit(commit, repo, id, 0);
626 e32baab7 2018-11-05 stsp const struct got_error *
627 e32baab7 2018-11-05 stsp got_object_commit_open(struct got_commit_object **commit,
628 e32baab7 2018-11-05 stsp struct got_repository *repo, struct got_object *obj)
630 1785f84a 2018-12-23 stsp return open_commit(commit, repo, got_object_get_id(obj), 1);
633 434025f3 2018-09-16 stsp const struct got_error *
634 dbc6a6b6 2018-07-12 stsp got_object_qid_alloc(struct got_object_qid **qid, struct got_object_id *id)
636 dbc6a6b6 2018-07-12 stsp const struct got_error *err = NULL;
638 dbc6a6b6 2018-07-12 stsp *qid = calloc(1, sizeof(**qid));
639 dbc6a6b6 2018-07-12 stsp if (*qid == NULL)
640 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
642 dbc6a6b6 2018-07-12 stsp (*qid)->id = got_object_id_dup(id);
643 dbc6a6b6 2018-07-12 stsp if ((*qid)->id == NULL) {
644 638f9024 2019-05-13 stsp err = got_error_from_errno("got_object_id_dup");
645 fa2f6902 2018-07-23 stsp got_object_qid_free(*qid);
646 dbc6a6b6 2018-07-12 stsp *qid = NULL;
647 dbc6a6b6 2018-07-12 stsp return err;
650 dbc6a6b6 2018-07-12 stsp return NULL;
653 a158c901 2018-12-23 stsp static const struct got_error *
654 13c729f7 2018-12-24 stsp request_packed_tree(struct got_tree_object **tree, struct got_pack *pack,
655 13c729f7 2018-12-24 stsp int pack_idx, struct got_object_id *id)
657 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
659 13c729f7 2018-12-24 stsp err = got_privsep_send_tree_req(pack->privsep_child->ibuf, -1, id,
662 a158c901 2018-12-23 stsp return err;
664 a158c901 2018-12-23 stsp return got_privsep_recv_tree(tree, pack->privsep_child->ibuf);
667 71eb0e7f 2018-09-16 stsp static const struct got_error *
668 13c729f7 2018-12-24 stsp read_packed_tree_privsep(struct got_tree_object **tree,
669 13c729f7 2018-12-24 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
670 13c729f7 2018-12-24 stsp struct got_object_id *id)
672 13c729f7 2018-12-24 stsp const struct got_error *err = NULL;
674 13c729f7 2018-12-24 stsp if (pack->privsep_child)
675 13c729f7 2018-12-24 stsp return request_packed_tree(tree, pack, idx, id);
677 13c729f7 2018-12-24 stsp err = start_pack_privsep_child(pack, packidx);
679 13c729f7 2018-12-24 stsp return err;
681 13c729f7 2018-12-24 stsp return request_packed_tree(tree, pack, idx, id);
684 13c729f7 2018-12-24 stsp static const struct got_error *
685 9f2369b0 2018-12-24 stsp request_tree(struct got_tree_object **tree, struct got_repository *repo,
688 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
689 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
691 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].ibuf;
693 9f2369b0 2018-12-24 stsp err = got_privsep_send_tree_req(ibuf, fd, NULL, -1);
695 9f2369b0 2018-12-24 stsp return err;
697 9f2369b0 2018-12-24 stsp return got_privsep_recv_tree(tree, ibuf);
700 9f2369b0 2018-12-24 stsp const struct got_error *
701 9f2369b0 2018-12-24 stsp read_tree_privsep(struct got_tree_object **tree, int obj_fd,
702 9f2369b0 2018-12-24 stsp struct got_repository *repo)
704 ddc7b220 2019-09-08 stsp const struct got_error *err;
705 9f2369b0 2018-12-24 stsp int imsg_fds[2];
707 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
709 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].imsg_fd != -1)
710 9f2369b0 2018-12-24 stsp return request_tree(tree, repo, obj_fd);
712 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
713 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
714 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
716 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
717 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
718 ddc7b220 2019-09-08 stsp free(ibuf);
719 ddc7b220 2019-09-08 stsp return err;
722 9f2369b0 2018-12-24 stsp pid = fork();
723 ddc7b220 2019-09-08 stsp if (pid == -1) {
724 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
725 ddc7b220 2019-09-08 stsp free(ibuf);
726 ddc7b220 2019-09-08 stsp return err;
728 9f2369b0 2018-12-24 stsp else if (pid == 0) {
729 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_TREE,
730 9f2369b0 2018-12-24 stsp repo->path);
731 9f2369b0 2018-12-24 stsp /* not reached */
734 ddc7b220 2019-09-08 stsp if (close(imsg_fds[1]) != 0) {
735 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
736 ddc7b220 2019-09-08 stsp free(ibuf);
737 ddc7b220 2019-09-08 stsp return err;
739 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].imsg_fd =
740 9f2369b0 2018-12-24 stsp imsg_fds[0];
741 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].pid = pid;
742 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
743 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TREE].ibuf = ibuf;
746 9f2369b0 2018-12-24 stsp return request_tree(tree, repo, obj_fd);
749 9f2369b0 2018-12-24 stsp static const struct got_error *
750 13c729f7 2018-12-24 stsp open_tree(struct got_tree_object **tree, struct got_repository *repo,
751 13c729f7 2018-12-24 stsp struct got_object_id *id, int check_cache)
753 0ffeb3c2 2017-11-26 stsp const struct got_error *err = NULL;
754 13c729f7 2018-12-24 stsp struct got_packidx *packidx = NULL;
756 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
758 71eb0e7f 2018-09-16 stsp if (check_cache) {
759 13c729f7 2018-12-24 stsp *tree = got_repo_get_cached_tree(repo, id);
760 71eb0e7f 2018-09-16 stsp if (*tree != NULL) {
761 71eb0e7f 2018-09-16 stsp (*tree)->refcnt++;
762 71eb0e7f 2018-09-16 stsp return NULL;
765 71eb0e7f 2018-09-16 stsp *tree = NULL;
767 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
768 e82b1d81 2019-07-27 stsp if (err == NULL) {
769 13c729f7 2018-12-24 stsp struct got_pack *pack = NULL;
771 13c729f7 2018-12-24 stsp err = get_packfile_path(&path_packfile, packidx);
773 13c729f7 2018-12-24 stsp return err;
775 13c729f7 2018-12-24 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
776 e7885405 2018-09-10 stsp if (pack == NULL) {
777 e82b1d81 2019-07-27 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
782 13c729f7 2018-12-24 stsp err = read_packed_tree_privsep(tree, pack,
783 13c729f7 2018-12-24 stsp packidx, idx, id);
784 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
787 e82b1d81 2019-07-27 stsp err = open_loose_object(&fd, id, repo);
789 e82b1d81 2019-07-27 stsp return err;
790 9f2369b0 2018-12-24 stsp err = read_tree_privsep(tree, fd, repo);
793 f6be5c30 2018-06-22 stsp if (err == NULL) {
794 f6be5c30 2018-06-22 stsp (*tree)->refcnt++;
795 13c729f7 2018-12-24 stsp err = got_repo_cache_tree(repo, id, *tree);
798 8d2c5ea3 2019-08-13 stsp free(path_packfile);
799 776d4d29 2018-06-17 stsp return err;
802 776d4d29 2018-06-17 stsp const struct got_error *
803 776d4d29 2018-06-17 stsp got_object_open_as_tree(struct got_tree_object **tree,
804 776d4d29 2018-06-17 stsp struct got_repository *repo, struct got_object_id *id)
806 e8eb494a 2018-09-16 stsp *tree = got_repo_get_cached_tree(repo, id);
807 e8eb494a 2018-09-16 stsp if (*tree != NULL) {
808 e8eb494a 2018-09-16 stsp (*tree)->refcnt++;
809 e8eb494a 2018-09-16 stsp return NULL;
812 13c729f7 2018-12-24 stsp return open_tree(tree, repo, id, 0);
815 71eb0e7f 2018-09-16 stsp const struct got_error *
816 71eb0e7f 2018-09-16 stsp got_object_tree_open(struct got_tree_object **tree,
817 71eb0e7f 2018-09-16 stsp struct got_repository *repo, struct got_object *obj)
819 13c729f7 2018-12-24 stsp return open_tree(tree, repo, got_object_get_id(obj), 1);
823 56e0773d 2019-11-28 stsp got_object_tree_get_nentries(struct got_tree_object *tree)
825 56e0773d 2019-11-28 stsp return tree->nentries;
828 56e0773d 2019-11-28 stsp struct got_tree_entry *
829 56e0773d 2019-11-28 stsp got_object_tree_get_first_entry(struct got_tree_object *tree)
831 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, 0);
834 56e0773d 2019-11-28 stsp struct got_tree_entry *
835 56e0773d 2019-11-28 stsp got_object_tree_get_last_entry(struct got_tree_object *tree)
837 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, tree->nentries - 1);
840 56e0773d 2019-11-28 stsp struct got_tree_entry *
841 56e0773d 2019-11-28 stsp got_object_tree_get_entry(struct got_tree_object *tree, int i)
843 56e0773d 2019-11-28 stsp if (i < 0 || i >= tree->nentries)
844 56e0773d 2019-11-28 stsp return NULL;
845 56e0773d 2019-11-28 stsp return &tree->entries[i];
849 56e0773d 2019-11-28 stsp got_tree_entry_get_mode(struct got_tree_entry *te)
851 56e0773d 2019-11-28 stsp return te->mode;
854 56e0773d 2019-11-28 stsp const char *
855 56e0773d 2019-11-28 stsp got_tree_entry_get_name(struct got_tree_entry *te)
857 56e0773d 2019-11-28 stsp return &te->name[0];
860 56e0773d 2019-11-28 stsp struct got_object_id *
861 56e0773d 2019-11-28 stsp got_tree_entry_get_id(struct got_tree_entry *te)
863 56e0773d 2019-11-28 stsp return &te->id;
866 0d6c6ee3 2020-05-20 stsp const struct got_error *
867 0d6c6ee3 2020-05-20 stsp got_tree_entry_get_symlink_target(char **link_target, struct got_tree_entry *te,
868 0d6c6ee3 2020-05-20 stsp struct got_repository *repo)
870 0d6c6ee3 2020-05-20 stsp const struct got_error *err = NULL;
871 0d6c6ee3 2020-05-20 stsp struct got_blob_object *blob = NULL;
872 659dc16e 2020-07-23 stsp size_t len, totlen, hdrlen;
874 0d6c6ee3 2020-05-20 stsp *link_target = NULL;
876 e40622f4 2020-07-23 stsp if (!got_object_tree_entry_is_symlink(te))
877 0d6c6ee3 2020-05-20 stsp return got_error(GOT_ERR_TREE_ENTRY_TYPE);
879 0d6c6ee3 2020-05-20 stsp err = got_object_open_as_blob(&blob, repo,
880 0d6c6ee3 2020-05-20 stsp got_tree_entry_get_id(te), PATH_MAX);
882 0d6c6ee3 2020-05-20 stsp return err;
883 659dc16e 2020-07-23 stsp hdrlen = got_object_blob_get_hdrlen(blob);
884 659dc16e 2020-07-23 stsp totlen = 0;
888 659dc16e 2020-07-23 stsp err = got_object_blob_read_block(&len, blob);
892 659dc16e 2020-07-23 stsp if (len == 0)
895 659dc16e 2020-07-23 stsp totlen += len - hdrlen;
896 659dc16e 2020-07-23 stsp p = realloc(*link_target, totlen + 1);
897 659dc16e 2020-07-23 stsp if (p == NULL) {
898 659dc16e 2020-07-23 stsp err = got_error_from_errno("realloc");
901 659dc16e 2020-07-23 stsp *link_target = p;
902 659dc16e 2020-07-23 stsp /* Skip blob object header first time around. */
903 659dc16e 2020-07-23 stsp memcpy(*link_target,
904 659dc16e 2020-07-23 stsp got_object_blob_get_read_buf(blob) + hdrlen, len);
905 659dc16e 2020-07-23 stsp hdrlen = 0;
906 659dc16e 2020-07-23 stsp } while (len > 0);
907 659dc16e 2020-07-23 stsp (*link_target)[totlen] = '\0';
910 0d6c6ee3 2020-05-20 stsp got_object_blob_close(blob);
912 659dc16e 2020-07-23 stsp free(*link_target);
913 659dc16e 2020-07-23 stsp *link_target = NULL;
915 0d6c6ee3 2020-05-20 stsp return err;
919 56e0773d 2019-11-28 stsp got_tree_entry_get_index(struct got_tree_entry *te)
921 56e0773d 2019-11-28 stsp return te->idx;
924 56e0773d 2019-11-28 stsp struct got_tree_entry *
925 56e0773d 2019-11-28 stsp got_tree_entry_get_next(struct got_tree_object *tree,
926 56e0773d 2019-11-28 stsp struct got_tree_entry *te)
928 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, te->idx + 1);
931 56e0773d 2019-11-28 stsp struct got_tree_entry *
932 56e0773d 2019-11-28 stsp got_tree_entry_get_prev(struct got_tree_object *tree,
933 56e0773d 2019-11-28 stsp struct got_tree_entry *te)
935 56e0773d 2019-11-28 stsp return got_object_tree_get_entry(tree, te->idx - 1);
938 3840f4c9 2018-09-12 stsp static const struct got_error *
939 ac544f8c 2019-01-13 stsp request_packed_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen, int outfd,
940 ebc55e2d 2018-12-24 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
941 ebc55e2d 2018-12-24 stsp struct got_object_id *id)
943 3840f4c9 2018-09-12 stsp const struct got_error *err = NULL;
944 3840f4c9 2018-09-12 stsp int outfd_child;
945 3840f4c9 2018-09-12 stsp int basefd, accumfd; /* temporary files for delta application */
947 3840f4c9 2018-09-12 stsp basefd = got_opentempfd();
948 3840f4c9 2018-09-12 stsp if (basefd == -1)
949 638f9024 2019-05-13 stsp return got_error_from_errno("got_opentempfd");
950 3840f4c9 2018-09-12 stsp accumfd = got_opentempfd();
951 3840f4c9 2018-09-12 stsp if (accumfd == -1)
952 638f9024 2019-05-13 stsp return got_error_from_errno("got_opentempfd");
954 3840f4c9 2018-09-12 stsp outfd_child = dup(outfd);
955 3840f4c9 2018-09-12 stsp if (outfd_child == -1)
956 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
958 ebc55e2d 2018-12-24 stsp err = got_privsep_send_blob_req(pack->privsep_child->ibuf, -1, id, idx);
960 3840f4c9 2018-09-12 stsp return err;
962 3840f4c9 2018-09-12 stsp err = got_privsep_send_blob_outfd(pack->privsep_child->ibuf,
963 3840f4c9 2018-09-12 stsp outfd_child);
965 41496140 2019-02-21 stsp close(basefd);
966 41496140 2019-02-21 stsp close(accumfd);
967 3840f4c9 2018-09-12 stsp return err;
970 3840f4c9 2018-09-12 stsp err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
973 3840f4c9 2018-09-12 stsp close(accumfd);
974 3840f4c9 2018-09-12 stsp return err;
977 3840f4c9 2018-09-12 stsp err = got_privsep_send_tmpfd(pack->privsep_child->ibuf,
980 3840f4c9 2018-09-12 stsp return err;
982 ac544f8c 2019-01-13 stsp err = got_privsep_recv_blob(outbuf, size, hdrlen,
983 ebc55e2d 2018-12-24 stsp pack->privsep_child->ibuf);
985 3840f4c9 2018-09-12 stsp return err;
987 3840f4c9 2018-09-12 stsp if (lseek(outfd, SEEK_SET, 0) == -1)
988 638f9024 2019-05-13 stsp err = got_error_from_errno("lseek");
990 3840f4c9 2018-09-12 stsp return err;
993 ebc55e2d 2018-12-24 stsp static const struct got_error *
994 ac544f8c 2019-01-13 stsp read_packed_blob_privsep(uint8_t **outbuf, size_t *size, size_t *hdrlen,
995 ac544f8c 2019-01-13 stsp int outfd, struct got_pack *pack, struct got_packidx *packidx, int idx,
996 ebc55e2d 2018-12-24 stsp struct got_object_id *id)
998 68482ea3 2017-11-27 stsp const struct got_error *err = NULL;
1000 ebc55e2d 2018-12-24 stsp if (pack->privsep_child == NULL) {
1001 ebc55e2d 2018-12-24 stsp err = start_pack_privsep_child(pack, packidx);
1003 ebc55e2d 2018-12-24 stsp return err;
1006 ac544f8c 2019-01-13 stsp return request_packed_blob(outbuf, size, hdrlen, outfd, pack, packidx,
1010 9f2369b0 2018-12-24 stsp static const struct got_error *
1011 ac544f8c 2019-01-13 stsp request_blob(uint8_t **outbuf, size_t *size, size_t *hdrlen, int outfd,
1012 ac544f8c 2019-01-13 stsp int infd, struct imsgbuf *ibuf)
1014 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
1015 9f2369b0 2018-12-24 stsp int outfd_child;
1017 9f2369b0 2018-12-24 stsp outfd_child = dup(outfd);
1018 9f2369b0 2018-12-24 stsp if (outfd_child == -1)
1019 638f9024 2019-05-13 stsp return got_error_from_errno("dup");
1021 9f2369b0 2018-12-24 stsp err = got_privsep_send_blob_req(ibuf, infd, NULL, -1);
1023 9f2369b0 2018-12-24 stsp return err;
1025 9f2369b0 2018-12-24 stsp err = got_privsep_send_blob_outfd(ibuf, outfd_child);
1027 9f2369b0 2018-12-24 stsp return err;
1029 ac544f8c 2019-01-13 stsp err = got_privsep_recv_blob(outbuf, size, hdrlen, ibuf);
1031 9f2369b0 2018-12-24 stsp return err;
1033 9f2369b0 2018-12-24 stsp if (lseek(outfd, SEEK_SET, 0) == -1)
1034 638f9024 2019-05-13 stsp return got_error_from_errno("lseek");
1036 9f2369b0 2018-12-24 stsp return err;
1039 9f2369b0 2018-12-24 stsp static const struct got_error *
1040 ac544f8c 2019-01-13 stsp read_blob_privsep(uint8_t **outbuf, size_t *size, size_t *hdrlen,
1041 9f2369b0 2018-12-24 stsp int outfd, int infd, struct got_repository *repo)
1043 ddc7b220 2019-09-08 stsp const struct got_error *err;
1044 9f2369b0 2018-12-24 stsp int imsg_fds[2];
1045 9f2369b0 2018-12-24 stsp pid_t pid;
1046 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
1048 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].imsg_fd != -1) {
1049 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].ibuf;
1050 ac544f8c 2019-01-13 stsp return request_blob(outbuf, size, hdrlen, outfd, infd, ibuf);
1053 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
1054 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
1055 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
1057 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
1058 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
1059 ddc7b220 2019-09-08 stsp free(ibuf);
1060 ddc7b220 2019-09-08 stsp return err;
1063 9f2369b0 2018-12-24 stsp pid = fork();
1064 ddc7b220 2019-09-08 stsp if (pid == -1) {
1065 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
1066 ddc7b220 2019-09-08 stsp free(ibuf);
1067 ddc7b220 2019-09-08 stsp return err;
1069 9f2369b0 2018-12-24 stsp else if (pid == 0) {
1070 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_BLOB,
1071 9f2369b0 2018-12-24 stsp repo->path);
1072 9f2369b0 2018-12-24 stsp /* not reached */
1075 ddc7b220 2019-09-08 stsp if (close(imsg_fds[1]) != 0) {
1076 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
1077 ddc7b220 2019-09-08 stsp free(ibuf);
1078 ddc7b220 2019-09-08 stsp return err;
1080 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].imsg_fd =
1081 9f2369b0 2018-12-24 stsp imsg_fds[0];
1082 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].pid = pid;
1083 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
1084 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_BLOB].ibuf = ibuf;
1086 ac544f8c 2019-01-13 stsp return request_blob(outbuf, size, hdrlen, outfd, infd, ibuf);
1089 ebc55e2d 2018-12-24 stsp static const struct got_error *
1090 ebc55e2d 2018-12-24 stsp open_blob(struct got_blob_object **blob, struct got_repository *repo,
1091 ebc55e2d 2018-12-24 stsp struct got_object_id *id, size_t blocksize)
1093 ebc55e2d 2018-12-24 stsp const struct got_error *err = NULL;
1094 ebc55e2d 2018-12-24 stsp struct got_packidx *packidx = NULL;
1096 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
1097 ac544f8c 2019-01-13 stsp uint8_t *outbuf;
1098 e82b1d81 2019-07-27 stsp int outfd;
1099 ebc55e2d 2018-12-24 stsp size_t size, hdrlen;
1100 ebc55e2d 2018-12-24 stsp struct stat sb;
1102 68482ea3 2017-11-27 stsp *blob = calloc(1, sizeof(**blob));
1103 4558fcd4 2018-01-14 stsp if (*blob == NULL)
1104 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
1106 55da3778 2018-09-10 stsp outfd = got_opentempfd();
1107 55da3778 2018-09-10 stsp if (outfd == -1)
1108 638f9024 2019-05-13 stsp return got_error_from_errno("got_opentempfd");
1110 062ebb78 2018-07-12 stsp (*blob)->read_buf = malloc(blocksize);
1111 15c8b0e6 2018-04-24 stsp if ((*blob)->read_buf == NULL) {
1112 638f9024 2019-05-13 stsp err = got_error_from_errno("malloc");
1113 c7254d79 2018-04-24 stsp goto done;
1116 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
1117 e82b1d81 2019-07-27 stsp if (err == NULL) {
1118 ebc55e2d 2018-12-24 stsp struct got_pack *pack = NULL;
1120 ebc55e2d 2018-12-24 stsp err = get_packfile_path(&path_packfile, packidx);
1122 ebc55e2d 2018-12-24 stsp goto done;
1124 ebc55e2d 2018-12-24 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
1125 55da3778 2018-09-10 stsp if (pack == NULL) {
1126 ebc55e2d 2018-12-24 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
1129 55da3778 2018-09-10 stsp goto done;
1131 ac544f8c 2019-01-13 stsp err = read_packed_blob_privsep(&outbuf, &size, &hdrlen, outfd,
1132 ac544f8c 2019-01-13 stsp pack, packidx, idx, id);
1133 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
1136 e82b1d81 2019-07-27 stsp err = open_loose_object(&infd, id, repo);
1138 e82b1d81 2019-07-27 stsp goto done;
1139 ac544f8c 2019-01-13 stsp err = read_blob_privsep(&outbuf, &size, &hdrlen, outfd, infd,
1143 55da3778 2018-09-10 stsp goto done;
1145 de060dff 2018-12-24 stsp if (hdrlen > size) {
1146 ebc55e2d 2018-12-24 stsp err = got_error(GOT_ERR_BAD_OBJ_HDR);
1147 ebc55e2d 2018-12-24 stsp goto done;
1150 ac544f8c 2019-01-13 stsp if (outbuf) {
1151 3a6ce05a 2019-02-11 stsp if (close(outfd) != 0 && err == NULL)
1152 638f9024 2019-05-13 stsp err = got_error_from_errno("close");
1153 ac544f8c 2019-01-13 stsp outfd = -1;
1154 ac544f8c 2019-01-13 stsp (*blob)->f = fmemopen(outbuf, size, "rb");
1155 ac544f8c 2019-01-13 stsp if ((*blob)->f == NULL) {
1156 638f9024 2019-05-13 stsp err = got_error_from_errno("fmemopen");
1157 ac544f8c 2019-01-13 stsp free(outbuf);
1158 ac544f8c 2019-01-13 stsp goto done;
1160 ac544f8c 2019-01-13 stsp (*blob)->data = outbuf;
1162 ac544f8c 2019-01-13 stsp if (fstat(outfd, &sb) == -1) {
1163 638f9024 2019-05-13 stsp err = got_error_from_errno("fstat");
1164 ac544f8c 2019-01-13 stsp goto done;
1167 ac544f8c 2019-01-13 stsp if (sb.st_size != size) {
1168 ac544f8c 2019-01-13 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1169 ac544f8c 2019-01-13 stsp goto done;
1172 ac544f8c 2019-01-13 stsp (*blob)->f = fdopen(outfd, "rb");
1173 ac544f8c 2019-01-13 stsp if ((*blob)->f == NULL) {
1174 638f9024 2019-05-13 stsp err = got_error_from_errno("fdopen");
1175 ac544f8c 2019-01-13 stsp close(outfd);
1176 ac544f8c 2019-01-13 stsp outfd = -1;
1177 ac544f8c 2019-01-13 stsp goto done;
1181 ebc55e2d 2018-12-24 stsp (*blob)->hdrlen = hdrlen;
1182 eb651edf 2018-02-11 stsp (*blob)->blocksize = blocksize;
1183 ebc55e2d 2018-12-24 stsp memcpy(&(*blob)->id.sha1, id->sha1, SHA1_DIGEST_LENGTH);
1186 8d2c5ea3 2019-08-13 stsp free(path_packfile);
1187 55da3778 2018-09-10 stsp if (err) {
1188 55da3778 2018-09-10 stsp if (*blob) {
1189 7baf5860 2019-03-19 stsp got_object_blob_close(*blob);
1190 55da3778 2018-09-10 stsp *blob = NULL;
1191 55da3778 2018-09-10 stsp } else if (outfd != -1)
1192 55da3778 2018-09-10 stsp close(outfd);
1194 a19581a2 2018-06-21 stsp return err;
1197 a19581a2 2018-06-21 stsp const struct got_error *
1198 a19581a2 2018-06-21 stsp got_object_open_as_blob(struct got_blob_object **blob,
1199 a19581a2 2018-06-21 stsp struct got_repository *repo, struct got_object_id *id,
1200 a19581a2 2018-06-21 stsp size_t blocksize)
1202 ebc55e2d 2018-12-24 stsp return open_blob(blob, repo, id, blocksize);
1205 ebc55e2d 2018-12-24 stsp const struct got_error *
1206 ebc55e2d 2018-12-24 stsp got_object_blob_open(struct got_blob_object **blob,
1207 ebc55e2d 2018-12-24 stsp struct got_repository *repo, struct got_object *obj, size_t blocksize)
1209 ebc55e2d 2018-12-24 stsp return open_blob(blob, repo, got_object_get_id(obj), blocksize);
1212 fb43ecf1 2019-02-11 stsp const struct got_error *
1213 68482ea3 2017-11-27 stsp got_object_blob_close(struct got_blob_object *blob)
1215 fb43ecf1 2019-02-11 stsp const struct got_error *err = NULL;
1216 15c8b0e6 2018-04-24 stsp free(blob->read_buf);
1217 7baf5860 2019-03-19 stsp if (blob->f && fclose(blob->f) != 0)
1218 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1219 ac544f8c 2019-01-13 stsp free(blob->data);
1220 68482ea3 2017-11-27 stsp free(blob);
1221 fb43ecf1 2019-02-11 stsp return err;
1225 8ba819a3 2020-07-23 stsp got_object_blob_rewind(struct got_blob_object *blob)
1227 8ba819a3 2020-07-23 stsp if (blob->f)
1228 8ba819a3 2020-07-23 stsp rewind(blob->f);
1232 f934cf2c 2018-02-12 stsp got_object_blob_id_str(struct got_blob_object *blob, char *buf, size_t size)
1234 f934cf2c 2018-02-12 stsp return got_sha1_digest_to_str(blob->id.sha1, buf, size);
1238 f934cf2c 2018-02-12 stsp got_object_blob_get_hdrlen(struct got_blob_object *blob)
1240 f934cf2c 2018-02-12 stsp return blob->hdrlen;
1243 f934cf2c 2018-02-12 stsp const uint8_t *
1244 f934cf2c 2018-02-12 stsp got_object_blob_get_read_buf(struct got_blob_object *blob)
1246 f934cf2c 2018-02-12 stsp return blob->read_buf;
1249 68482ea3 2017-11-27 stsp const struct got_error *
1250 eb651edf 2018-02-11 stsp got_object_blob_read_block(size_t *outlenp, struct got_blob_object *blob)
1254 eb651edf 2018-02-11 stsp n = fread(blob->read_buf, 1, blob->blocksize, blob->f);
1255 eb651edf 2018-02-11 stsp if (n == 0 && ferror(blob->f))
1256 eb651edf 2018-02-11 stsp return got_ferror(blob->f, GOT_ERR_IO);
1257 eb651edf 2018-02-11 stsp *outlenp = n;
1258 35e9ba5d 2018-06-21 stsp return NULL;
1261 35e9ba5d 2018-06-21 stsp const struct got_error *
1262 f595d9bd 2019-08-14 stsp got_object_blob_dump_to_file(size_t *filesize, int *nlines,
1263 6c4c42e0 2019-06-24 stsp off_t **line_offsets, FILE *outfile, struct got_blob_object *blob)
1265 35e9ba5d 2018-06-21 stsp const struct got_error *err = NULL;
1266 b6752625 2018-12-24 stsp size_t n, len, hdrlen;
1267 84451b3e 2018-07-10 stsp const uint8_t *buf;
1269 6c4c42e0 2019-06-24 stsp size_t noffsets = 0;
1270 f595d9bd 2019-08-14 stsp off_t off = 0, total_len = 0;
1272 6c4c42e0 2019-06-24 stsp if (line_offsets)
1273 6c4c42e0 2019-06-24 stsp *line_offsets = NULL;
1274 f595d9bd 2019-08-14 stsp if (filesize)
1275 f595d9bd 2019-08-14 stsp *filesize = 0;
1276 84451b3e 2018-07-10 stsp if (nlines)
1277 84451b3e 2018-07-10 stsp *nlines = 0;
1279 35e9ba5d 2018-06-21 stsp hdrlen = got_object_blob_get_hdrlen(blob);
1281 35e9ba5d 2018-06-21 stsp err = got_object_blob_read_block(&len, blob);
1283 35e9ba5d 2018-06-21 stsp return err;
1284 35e9ba5d 2018-06-21 stsp if (len == 0)
1286 84451b3e 2018-07-10 stsp buf = got_object_blob_get_read_buf(blob);
1287 b02560ec 2019-08-19 stsp i = hdrlen;
1288 78695fb7 2019-08-12 stsp if (line_offsets && nlines) {
1289 78695fb7 2019-08-12 stsp if (*line_offsets == NULL) {
1290 78695fb7 2019-08-12 stsp /* Have some data but perhaps no '\n'. */
1291 78695fb7 2019-08-12 stsp noffsets = 1;
1292 78695fb7 2019-08-12 stsp *nlines = 1;
1293 f595d9bd 2019-08-14 stsp *line_offsets = calloc(1, sizeof(**line_offsets));
1294 78695fb7 2019-08-12 stsp if (*line_offsets == NULL)
1295 845785d4 2020-02-02 tracey return got_error_from_errno("calloc");
1297 b02560ec 2019-08-19 stsp /* Skip forward over end of first line. */
1298 b02560ec 2019-08-19 stsp while (i < len) {
1299 b02560ec 2019-08-19 stsp if (buf[i] == '\n')
1304 b02560ec 2019-08-19 stsp /* Scan '\n' offsets in remaining chunk of data. */
1305 b02560ec 2019-08-19 stsp while (i < len) {
1306 b02560ec 2019-08-19 stsp if (buf[i] != '\n') {
1310 f595d9bd 2019-08-14 stsp (*nlines)++;
1311 78695fb7 2019-08-12 stsp if (noffsets < *nlines) {
1312 78695fb7 2019-08-12 stsp off_t *o = recallocarray(*line_offsets,
1313 78695fb7 2019-08-12 stsp noffsets, *nlines,
1314 78695fb7 2019-08-12 stsp sizeof(**line_offsets));
1315 78695fb7 2019-08-12 stsp if (o == NULL) {
1316 78695fb7 2019-08-12 stsp free(*line_offsets);
1317 78695fb7 2019-08-12 stsp *line_offsets = NULL;
1318 78695fb7 2019-08-12 stsp return got_error_from_errno(
1319 78695fb7 2019-08-12 stsp "recallocarray");
1321 78695fb7 2019-08-12 stsp *line_offsets = o;
1322 78695fb7 2019-08-12 stsp noffsets = *nlines;
1324 f595d9bd 2019-08-14 stsp off = total_len + i - hdrlen + 1;
1325 f595d9bd 2019-08-14 stsp (*line_offsets)[*nlines - 1] = off;
1329 35e9ba5d 2018-06-21 stsp /* Skip blob object header first time around. */
1330 454a6b59 2018-12-24 stsp n = fwrite(buf + hdrlen, 1, len - hdrlen, outfile);
1331 b6752625 2018-12-24 stsp if (n != len - hdrlen)
1332 b6752625 2018-12-24 stsp return got_ferror(outfile, GOT_ERR_IO);
1333 f595d9bd 2019-08-14 stsp total_len += len - hdrlen;
1334 35e9ba5d 2018-06-21 stsp hdrlen = 0;
1335 35e9ba5d 2018-06-21 stsp } while (len != 0);
1337 cbe7f848 2019-02-11 stsp if (fflush(outfile) != 0)
1338 638f9024 2019-05-13 stsp return got_error_from_errno("fflush");
1339 35e9ba5d 2018-06-21 stsp rewind(outfile);
1341 f595d9bd 2019-08-14 stsp if (filesize)
1342 f595d9bd 2019-08-14 stsp *filesize = total_len;
1344 776d4d29 2018-06-17 stsp return NULL;
1347 f4a881ce 2018-11-17 stsp static const struct got_error *
1348 268f7291 2018-12-24 stsp request_packed_tag(struct got_tag_object **tag, struct got_pack *pack,
1349 268f7291 2018-12-24 stsp int pack_idx, struct got_object_id *id)
1351 a158c901 2018-12-23 stsp const struct got_error *err = NULL;
1353 268f7291 2018-12-24 stsp err = got_privsep_send_tag_req(pack->privsep_child->ibuf, -1, id,
1354 268f7291 2018-12-24 stsp pack_idx);
1356 a158c901 2018-12-23 stsp return err;
1358 a158c901 2018-12-23 stsp return got_privsep_recv_tag(tag, pack->privsep_child->ibuf);
1361 268f7291 2018-12-24 stsp static const struct got_error *
1362 268f7291 2018-12-24 stsp read_packed_tag_privsep(struct got_tag_object **tag,
1363 268f7291 2018-12-24 stsp struct got_pack *pack, struct got_packidx *packidx, int idx,
1364 268f7291 2018-12-24 stsp struct got_object_id *id)
1366 268f7291 2018-12-24 stsp const struct got_error *err = NULL;
1368 268f7291 2018-12-24 stsp if (pack->privsep_child)
1369 268f7291 2018-12-24 stsp return request_packed_tag(tag, pack, idx, id);
1371 268f7291 2018-12-24 stsp err = start_pack_privsep_child(pack, packidx);
1373 268f7291 2018-12-24 stsp return err;
1375 268f7291 2018-12-24 stsp return request_packed_tag(tag, pack, idx, id);
1378 9f2369b0 2018-12-24 stsp static const struct got_error *
1379 9f2369b0 2018-12-24 stsp request_tag(struct got_tag_object **tag, struct got_repository *repo,
1382 9f2369b0 2018-12-24 stsp const struct got_error *err = NULL;
1383 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
1385 9f2369b0 2018-12-24 stsp ibuf = repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].ibuf;
1387 9f2369b0 2018-12-24 stsp err = got_privsep_send_tag_req(ibuf, fd, NULL, -1);
1389 9f2369b0 2018-12-24 stsp return err;
1391 9f2369b0 2018-12-24 stsp return got_privsep_recv_tag(tag, ibuf);
1394 9f2369b0 2018-12-24 stsp static const struct got_error *
1395 9f2369b0 2018-12-24 stsp read_tag_privsep(struct got_tag_object **tag, int obj_fd,
1396 9f2369b0 2018-12-24 stsp struct got_repository *repo)
1398 ddc7b220 2019-09-08 stsp const struct got_error *err;
1399 9f2369b0 2018-12-24 stsp int imsg_fds[2];
1400 9f2369b0 2018-12-24 stsp pid_t pid;
1401 9f2369b0 2018-12-24 stsp struct imsgbuf *ibuf;
1403 9f2369b0 2018-12-24 stsp if (repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].imsg_fd != -1)
1404 9f2369b0 2018-12-24 stsp return request_tag(tag, repo, obj_fd);
1406 9f2369b0 2018-12-24 stsp ibuf = calloc(1, sizeof(*ibuf));
1407 9f2369b0 2018-12-24 stsp if (ibuf == NULL)
1408 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
1410 ddc7b220 2019-09-08 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
1411 ddc7b220 2019-09-08 stsp err = got_error_from_errno("socketpair");
1412 ddc7b220 2019-09-08 stsp free(ibuf);
1413 ddc7b220 2019-09-08 stsp return err;
1416 9f2369b0 2018-12-24 stsp pid = fork();
1417 ddc7b220 2019-09-08 stsp if (pid == -1) {
1418 ddc7b220 2019-09-08 stsp err = got_error_from_errno("fork");
1419 ddc7b220 2019-09-08 stsp free(ibuf);
1420 ddc7b220 2019-09-08 stsp return err;
1422 9f2369b0 2018-12-24 stsp else if (pid == 0) {
1423 aba9c984 2019-09-08 stsp got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_TAG,
1424 9f2369b0 2018-12-24 stsp repo->path);
1425 9f2369b0 2018-12-24 stsp /* not reached */
1428 ddc7b220 2019-09-08 stsp if (close(imsg_fds[1]) != 0) {
1429 ddc7b220 2019-09-08 stsp err = got_error_from_errno("close");
1430 ddc7b220 2019-09-08 stsp free(ibuf);
1431 ddc7b220 2019-09-08 stsp return err;
1433 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].imsg_fd =
1434 9f2369b0 2018-12-24 stsp imsg_fds[0];
1435 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].pid = pid;
1436 9f2369b0 2018-12-24 stsp imsg_init(ibuf, imsg_fds[0]);
1437 9f2369b0 2018-12-24 stsp repo->privsep_children[GOT_REPO_PRIVSEP_CHILD_TAG].ibuf = ibuf;
1439 9f2369b0 2018-12-24 stsp return request_tag(tag, repo, obj_fd);
1442 a158c901 2018-12-23 stsp static const struct got_error *
1443 268f7291 2018-12-24 stsp open_tag(struct got_tag_object **tag, struct got_repository *repo,
1444 268f7291 2018-12-24 stsp struct got_object_id *id, int check_cache)
1446 f4a881ce 2018-11-17 stsp const struct got_error *err = NULL;
1447 268f7291 2018-12-24 stsp struct got_packidx *packidx = NULL;
1449 8d2c5ea3 2019-08-13 stsp char *path_packfile = NULL;
1450 5d844a1e 2019-08-13 stsp struct got_object *obj = NULL;
1451 5d844a1e 2019-08-13 stsp int obj_type = GOT_OBJ_TYPE_ANY;
1453 f4a881ce 2018-11-17 stsp if (check_cache) {
1454 268f7291 2018-12-24 stsp *tag = got_repo_get_cached_tag(repo, id);
1455 f4a881ce 2018-11-17 stsp if (*tag != NULL) {
1456 f4a881ce 2018-11-17 stsp (*tag)->refcnt++;
1457 f4a881ce 2018-11-17 stsp return NULL;
1460 f4a881ce 2018-11-17 stsp *tag = NULL;
1462 e82b1d81 2019-07-27 stsp err = got_repo_search_packidx(&packidx, &idx, repo, id);
1463 e82b1d81 2019-07-27 stsp if (err == NULL) {
1464 268f7291 2018-12-24 stsp struct got_pack *pack = NULL;
1466 268f7291 2018-12-24 stsp err = get_packfile_path(&path_packfile, packidx);
1468 268f7291 2018-12-24 stsp return err;
1470 268f7291 2018-12-24 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
1471 f4a881ce 2018-11-17 stsp if (pack == NULL) {
1472 e82b1d81 2019-07-27 stsp err = got_repo_cache_pack(&pack, repo, path_packfile,
1475 8d2c5ea3 2019-08-13 stsp goto done;
1478 992eb9d8 2020-02-07 tracey /* Beware of "lightweight" tags: Check object type first. */
1479 5d844a1e 2019-08-13 stsp err = read_packed_object_privsep(&obj, repo, pack, packidx,
1482 5d844a1e 2019-08-13 stsp goto done;
1483 5d844a1e 2019-08-13 stsp obj_type = obj->type;
1484 5d844a1e 2019-08-13 stsp got_object_close(obj);
1485 5d844a1e 2019-08-13 stsp if (obj_type != GOT_OBJ_TYPE_TAG) {
1486 5d844a1e 2019-08-13 stsp err = got_error(GOT_ERR_OBJ_TYPE);
1487 5d844a1e 2019-08-13 stsp goto done;
1489 5d844a1e 2019-08-13 stsp err = read_packed_tag_privsep(tag, pack, packidx, idx, id);
1490 e82b1d81 2019-07-27 stsp } else if (err->code == GOT_ERR_NO_OBJ) {
1493 e82b1d81 2019-07-27 stsp err = open_loose_object(&fd, id, repo);
1495 e82b1d81 2019-07-27 stsp return err;
1496 5d844a1e 2019-08-13 stsp err = read_object_header_privsep(&obj, repo, fd);
1498 5d844a1e 2019-08-13 stsp return err;
1499 5d844a1e 2019-08-13 stsp obj_type = obj->type;
1500 5d844a1e 2019-08-13 stsp got_object_close(obj);
1501 5d844a1e 2019-08-13 stsp if (obj_type != GOT_OBJ_TYPE_TAG)
1502 5d844a1e 2019-08-13 stsp return got_error(GOT_ERR_OBJ_TYPE);
1504 5d844a1e 2019-08-13 stsp err = open_loose_object(&fd, id, repo);
1506 5d844a1e 2019-08-13 stsp return err;
1507 9f2369b0 2018-12-24 stsp err = read_tag_privsep(tag, fd, repo);
1510 f4a881ce 2018-11-17 stsp if (err == NULL) {
1511 f4a881ce 2018-11-17 stsp (*tag)->refcnt++;
1512 268f7291 2018-12-24 stsp err = got_repo_cache_tag(repo, id, *tag);
1515 8d2c5ea3 2019-08-13 stsp free(path_packfile);
1516 f4a881ce 2018-11-17 stsp return err;
1519 f4a881ce 2018-11-17 stsp const struct got_error *
1520 f4a881ce 2018-11-17 stsp got_object_open_as_tag(struct got_tag_object **tag,
1521 f4a881ce 2018-11-17 stsp struct got_repository *repo, struct got_object_id *id)
1523 f4a881ce 2018-11-17 stsp *tag = got_repo_get_cached_tag(repo, id);
1524 f4a881ce 2018-11-17 stsp if (*tag != NULL) {
1525 f4a881ce 2018-11-17 stsp (*tag)->refcnt++;
1526 f4a881ce 2018-11-17 stsp return NULL;
1529 268f7291 2018-12-24 stsp return open_tag(tag, repo, id, 0);
1532 f4a881ce 2018-11-17 stsp const struct got_error *
1533 f4a881ce 2018-11-17 stsp got_object_tag_open(struct got_tag_object **tag,
1534 f4a881ce 2018-11-17 stsp struct got_repository *repo, struct got_object *obj)
1536 268f7291 2018-12-24 stsp return open_tag(tag, repo, got_object_get_id(obj), 1);
1539 d24820bf 2019-08-11 stsp const char *
1540 d24820bf 2019-08-11 stsp got_object_tag_get_name(struct got_tag_object *tag)
1542 d24820bf 2019-08-11 stsp return tag->tag;
1546 0bd18d37 2019-02-01 stsp got_object_tag_get_object_type(struct got_tag_object *tag)
1548 0bd18d37 2019-02-01 stsp return tag->obj_type;
1551 0bd18d37 2019-02-01 stsp struct got_object_id *
1552 0bd18d37 2019-02-01 stsp got_object_tag_get_object_id(struct got_tag_object *tag)
1554 0bd18d37 2019-02-01 stsp return &tag->id;
1558 01073a5d 2019-08-22 stsp got_object_tag_get_tagger_time(struct got_tag_object *tag)
1560 01073a5d 2019-08-22 stsp return tag->tagger_time;
1564 01073a5d 2019-08-22 stsp got_object_tag_get_tagger_gmtoff(struct got_tag_object *tag)
1566 01073a5d 2019-08-22 stsp return tag->tagger_gmtoff;
1569 01073a5d 2019-08-22 stsp const char *
1570 01073a5d 2019-08-22 stsp got_object_tag_get_tagger(struct got_tag_object *tag)
1572 01073a5d 2019-08-22 stsp return tag->tagger;
1575 01073a5d 2019-08-22 stsp const char *
1576 01073a5d 2019-08-22 stsp got_object_tag_get_message(struct got_tag_object *tag)
1578 01073a5d 2019-08-22 stsp return tag->tagmsg;
1581 776d4d29 2018-06-17 stsp static struct got_tree_entry *
1582 65a9bbe9 2018-09-15 stsp find_entry_by_name(struct got_tree_object *tree, const char *name, size_t len)
1586 63da309a 2018-11-07 stsp /* Note that tree entries are sorted in strncmp() order. */
1587 56e0773d 2019-11-28 stsp for (i = 0; i < tree->nentries; i++) {
1588 56e0773d 2019-11-28 stsp struct got_tree_entry *te = &tree->entries[i];
1589 63da309a 2018-11-07 stsp int cmp = strncmp(te->name, name, len);
1590 63da309a 2018-11-07 stsp if (cmp < 0)
1592 63da309a 2018-11-07 stsp if (cmp > 0)
1594 63da309a 2018-11-07 stsp if (te->name[len] == '\0')
1595 776d4d29 2018-06-17 stsp return te;
1597 eb651edf 2018-02-11 stsp return NULL;
1600 56e0773d 2019-11-28 stsp struct got_tree_entry *
1601 a129376b 2019-03-28 stsp got_object_tree_find_entry(struct got_tree_object *tree, const char *name)
1603 a129376b 2019-03-28 stsp return find_entry_by_name(tree, name, strlen(name));
1606 776d4d29 2018-06-17 stsp const struct got_error *
1607 27d434c2 2018-09-15 stsp got_object_id_by_path(struct got_object_id **id, struct got_repository *repo,
1608 776d4d29 2018-06-17 stsp struct got_object_id *commit_id, const char *path)
1610 776d4d29 2018-06-17 stsp const struct got_error *err = NULL;
1611 776d4d29 2018-06-17 stsp struct got_commit_object *commit = NULL;
1612 776d4d29 2018-06-17 stsp struct got_tree_object *tree = NULL;
1613 db37e2c0 2018-06-21 stsp struct got_tree_entry *te = NULL;
1614 65a9bbe9 2018-09-15 stsp const char *seg, *s;
1615 b7cd37e5 2018-11-18 stsp size_t seglen;
1617 27d434c2 2018-09-15 stsp *id = NULL;
1619 776d4d29 2018-06-17 stsp err = got_object_open_as_commit(&commit, repo, commit_id);
1621 776d4d29 2018-06-17 stsp goto done;
1623 776d4d29 2018-06-17 stsp /* Handle opening of root of commit's tree. */
1624 5e54fb30 2019-05-31 stsp if (got_path_is_root_dir(path)) {
1625 27d434c2 2018-09-15 stsp *id = got_object_id_dup(commit->tree_id);
1626 27d434c2 2018-09-15 stsp if (*id == NULL)
1627 638f9024 2019-05-13 stsp err = got_error_from_errno("got_object_id_dup");
1628 ca008b32 2018-07-22 stsp goto done;
1631 776d4d29 2018-06-17 stsp err = got_object_open_as_tree(&tree, repo, commit->tree_id);
1633 776d4d29 2018-06-17 stsp goto done;
1636 5e54fb30 2019-05-31 stsp while (s[0] == '/')
1639 65a9bbe9 2018-09-15 stsp seglen = 0;
1640 b7cd37e5 2018-11-18 stsp while (*s) {
1641 776d4d29 2018-06-17 stsp struct got_tree_object *next_tree;
1643 776d4d29 2018-06-17 stsp if (*s != '/') {
1650 65a9bbe9 2018-09-15 stsp te = find_entry_by_name(tree, seg, seglen);
1651 db37e2c0 2018-06-21 stsp if (te == NULL) {
1652 d1451975 2018-11-11 stsp err = got_error(GOT_ERR_NO_TREE_ENTRY);
1653 776d4d29 2018-06-17 stsp goto done;
1656 b7cd37e5 2018-11-18 stsp if (*s == '\0')
1659 776d4d29 2018-06-17 stsp seg = s + 1;
1660 65a9bbe9 2018-09-15 stsp seglen = 0;
1663 776d4d29 2018-06-17 stsp err = got_object_open_as_tree(&next_tree, repo,
1665 db37e2c0 2018-06-21 stsp te = NULL;
1667 776d4d29 2018-06-17 stsp goto done;
1668 776d4d29 2018-06-17 stsp got_object_tree_close(tree);
1669 776d4d29 2018-06-17 stsp tree = next_tree;
1674 56e0773d 2019-11-28 stsp *id = got_object_id_dup(&te->id);
1675 27d434c2 2018-09-15 stsp if (*id == NULL)
1676 638f9024 2019-05-13 stsp return got_error_from_errno("got_object_id_dup");
1678 d1451975 2018-11-11 stsp err = got_error(GOT_ERR_NO_TREE_ENTRY);
1680 776d4d29 2018-06-17 stsp if (commit)
1681 776d4d29 2018-06-17 stsp got_object_commit_close(commit);
1683 776d4d29 2018-06-17 stsp got_object_tree_close(tree);
1684 776d4d29 2018-06-17 stsp return err;
1688 ac5f2b26 2020-05-05 stsp * Normalize file mode bits to avoid false positive tree entry differences
1689 ac5f2b26 2020-05-05 stsp * in case tree entries have unexpected mode bits set.
1691 ac5f2b26 2020-05-05 stsp static mode_t
1692 ac5f2b26 2020-05-05 stsp normalize_mode_for_comparison(mode_t mode)
1695 ac5f2b26 2020-05-05 stsp * For directories, the only relevant bit is the IFDIR bit.
1696 ac5f2b26 2020-05-05 stsp * This allows us to detect paths changing from a directory
1697 ac5f2b26 2020-05-05 stsp * to a file and vice versa.
1699 ac5f2b26 2020-05-05 stsp if (S_ISDIR(mode))
1700 ac5f2b26 2020-05-05 stsp return mode & S_IFDIR;
1702 ac5f2b26 2020-05-05 stsp /* For files, the only change we care about is the executable bit. */
1703 ac5f2b26 2020-05-05 stsp return mode & S_IXUSR;
1706 07862c20 2018-09-15 stsp const struct got_error *
1707 07862c20 2018-09-15 stsp got_object_tree_path_changed(int *changed,
1708 07862c20 2018-09-15 stsp struct got_tree_object *tree01, struct got_tree_object *tree02,
1709 07862c20 2018-09-15 stsp const char *path, struct got_repository *repo)
1711 07862c20 2018-09-15 stsp const struct got_error *err = NULL;
1712 07862c20 2018-09-15 stsp struct got_tree_object *tree1 = NULL, *tree2 = NULL;
1713 07862c20 2018-09-15 stsp struct got_tree_entry *te1 = NULL, *te2 = NULL;
1714 65a9bbe9 2018-09-15 stsp const char *seg, *s;
1715 3b7f9878 2018-11-18 stsp size_t seglen;
1717 07862c20 2018-09-15 stsp *changed = 0;
1719 07862c20 2018-09-15 stsp /* We not do support comparing the root path. */
1720 61a7d79f 2020-02-29 stsp if (got_path_is_root_dir(path))
1721 63f810e6 2020-02-29 stsp return got_error_path(path, GOT_ERR_BAD_PATH);
1723 07862c20 2018-09-15 stsp tree1 = tree01;
1724 07862c20 2018-09-15 stsp tree2 = tree02;
1726 61a7d79f 2020-02-29 stsp while (*s == '/')
1729 65a9bbe9 2018-09-15 stsp seglen = 0;
1730 3b7f9878 2018-11-18 stsp while (*s) {
1731 07862c20 2018-09-15 stsp struct got_tree_object *next_tree1, *next_tree2;
1732 ac5f2b26 2020-05-05 stsp mode_t mode1, mode2;
1734 07862c20 2018-09-15 stsp if (*s != '/') {
1741 65a9bbe9 2018-09-15 stsp te1 = find_entry_by_name(tree1, seg, seglen);
1742 07862c20 2018-09-15 stsp if (te1 == NULL) {
1743 07862c20 2018-09-15 stsp err = got_error(GOT_ERR_NO_OBJ);
1744 07862c20 2018-09-15 stsp goto done;
1747 65a9bbe9 2018-09-15 stsp te2 = find_entry_by_name(tree2, seg, seglen);
1748 07862c20 2018-09-15 stsp if (te2 == NULL) {
1749 07862c20 2018-09-15 stsp *changed = 1;
1750 07862c20 2018-09-15 stsp goto done;
1753 ac5f2b26 2020-05-05 stsp mode1 = normalize_mode_for_comparison(te1->mode);
1754 ac5f2b26 2020-05-05 stsp mode2 = normalize_mode_for_comparison(te2->mode);
1755 ac5f2b26 2020-05-05 stsp if (mode1 != mode2) {
1756 07862c20 2018-09-15 stsp *changed = 1;
1757 07862c20 2018-09-15 stsp goto done;
1760 56e0773d 2019-11-28 stsp if (got_object_id_cmp(&te1->id, &te2->id) == 0) {
1761 07862c20 2018-09-15 stsp *changed = 0;
1762 07862c20 2018-09-15 stsp goto done;
1765 3b7f9878 2018-11-18 stsp if (*s == '\0') { /* final path element */
1766 07862c20 2018-09-15 stsp *changed = 1;
1767 07862c20 2018-09-15 stsp goto done;
1770 07862c20 2018-09-15 stsp seg = s + 1;
1772 65a9bbe9 2018-09-15 stsp seglen = 0;
1774 07862c20 2018-09-15 stsp err = got_object_open_as_tree(&next_tree1, repo,
1775 56e0773d 2019-11-28 stsp &te1->id);
1776 07862c20 2018-09-15 stsp te1 = NULL;
1778 07862c20 2018-09-15 stsp goto done;
1779 a31cea73 2018-09-15 stsp if (tree1 != tree01)
1780 a31cea73 2018-09-15 stsp got_object_tree_close(tree1);
1781 07862c20 2018-09-15 stsp tree1 = next_tree1;
1783 07862c20 2018-09-15 stsp err = got_object_open_as_tree(&next_tree2, repo,
1784 56e0773d 2019-11-28 stsp &te2->id);
1785 07862c20 2018-09-15 stsp te2 = NULL;
1787 07862c20 2018-09-15 stsp goto done;
1788 a31cea73 2018-09-15 stsp if (tree2 != tree02)
1789 a31cea73 2018-09-15 stsp got_object_tree_close(tree2);
1790 07862c20 2018-09-15 stsp tree2 = next_tree2;
1794 a31cea73 2018-09-15 stsp if (tree1 && tree1 != tree01)
1795 07862c20 2018-09-15 stsp got_object_tree_close(tree1);
1796 a31cea73 2018-09-15 stsp if (tree2 && tree2 != tree02)
1797 07862c20 2018-09-15 stsp got_object_tree_close(tree2);
1798 77880158 2018-11-04 stsp return err;
1801 ed175427 2019-05-09 stsp const struct got_error *
1802 ed175427 2019-05-09 stsp got_object_tree_entry_dup(struct got_tree_entry **new_te,
1803 ed175427 2019-05-09 stsp struct got_tree_entry *te)
1805 ed175427 2019-05-09 stsp const struct got_error *err = NULL;
1807 ed175427 2019-05-09 stsp *new_te = calloc(1, sizeof(**new_te));
1808 ed175427 2019-05-09 stsp if (*new_te == NULL)
1809 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
1811 ed175427 2019-05-09 stsp (*new_te)->mode = te->mode;
1812 56e0773d 2019-11-28 stsp memcpy((*new_te)->name, te->name, sizeof((*new_te)->name));
1813 56e0773d 2019-11-28 stsp memcpy(&(*new_te)->id, &te->id, sizeof((*new_te)->id));
1814 8c4eabf2 2019-05-10 stsp return err;
1818 56e0773d 2019-11-28 stsp got_object_tree_entry_is_submodule(struct got_tree_entry *te)
1820 63c5ca5d 2019-08-24 stsp return (te->mode & S_IFMT) == (S_IFDIR | S_IFLNK);
1824 e40622f4 2020-07-23 stsp got_object_tree_entry_is_symlink(struct got_tree_entry *te)
1826 e40622f4 2020-07-23 stsp /* S_IFDIR check avoids confusing symlinks with submodules. */
1827 e40622f4 2020-07-23 stsp return ((te->mode & (S_IFDIR | S_IFLNK)) == S_IFLNK);
1830 e40622f4 2020-07-23 stsp static const struct got_error *
1831 e40622f4 2020-07-23 stsp resolve_symlink(char **link_target, const char *path,
1832 e40622f4 2020-07-23 stsp struct got_object_id *commit_id, struct got_repository *repo)
1834 e40622f4 2020-07-23 stsp const struct got_error *err = NULL;
1835 e40622f4 2020-07-23 stsp char *name, *parent_path = NULL;
1836 e40622f4 2020-07-23 stsp struct got_object_id *tree_obj_id = NULL;
1837 e40622f4 2020-07-23 stsp struct got_tree_object *tree = NULL;
1838 e40622f4 2020-07-23 stsp struct got_tree_entry *te = NULL;
1840 e40622f4 2020-07-23 stsp *link_target = NULL;
1842 e40622f4 2020-07-23 stsp name = basename(path);
1843 e40622f4 2020-07-23 stsp if (name == NULL)
1844 e40622f4 2020-07-23 stsp return got_error_from_errno2("basename", path);
1846 e40622f4 2020-07-23 stsp err = got_path_dirname(&parent_path, path);
1848 e40622f4 2020-07-23 stsp return err;
1850 e40622f4 2020-07-23 stsp err = got_object_id_by_path(&tree_obj_id, repo, commit_id,
1851 e40622f4 2020-07-23 stsp parent_path);
1852 e40622f4 2020-07-23 stsp if (err) {
1853 e40622f4 2020-07-23 stsp if (err->code == GOT_ERR_NO_TREE_ENTRY) {
1854 e40622f4 2020-07-23 stsp /* Display the complete path in error message. */
1855 e40622f4 2020-07-23 stsp err = got_error_path(path, err->code);
1857 e40622f4 2020-07-23 stsp goto done;
1860 e40622f4 2020-07-23 stsp err = got_object_open_as_tree(&tree, repo, tree_obj_id);
1862 e40622f4 2020-07-23 stsp goto done;
1864 e40622f4 2020-07-23 stsp te = got_object_tree_find_entry(tree, name);
1865 e40622f4 2020-07-23 stsp if (te == NULL) {
1866 e40622f4 2020-07-23 stsp err = got_error_path(path, GOT_ERR_NO_TREE_ENTRY);
1867 e40622f4 2020-07-23 stsp goto done;
1870 e40622f4 2020-07-23 stsp if (got_object_tree_entry_is_symlink(te)) {
1871 e40622f4 2020-07-23 stsp err = got_tree_entry_get_symlink_target(link_target, te, repo);
1873 e40622f4 2020-07-23 stsp goto done;
1874 e40622f4 2020-07-23 stsp if (!got_path_is_absolute(*link_target)) {
1875 e40622f4 2020-07-23 stsp char *abspath;
1876 e40622f4 2020-07-23 stsp if (asprintf(&abspath, "%s/%s", parent_path,
1877 e40622f4 2020-07-23 stsp *link_target) == -1) {
1878 e40622f4 2020-07-23 stsp err = got_error_from_errno("asprintf");
1879 e40622f4 2020-07-23 stsp goto done;
1881 e40622f4 2020-07-23 stsp free(*link_target);
1882 e40622f4 2020-07-23 stsp *link_target = malloc(PATH_MAX);
1883 e40622f4 2020-07-23 stsp if (*link_target == NULL) {
1884 e40622f4 2020-07-23 stsp err = got_error_from_errno("malloc");
1885 e40622f4 2020-07-23 stsp goto done;
1887 e40622f4 2020-07-23 stsp err = got_canonpath(abspath, *link_target, PATH_MAX);
1888 e40622f4 2020-07-23 stsp free(abspath);
1890 e40622f4 2020-07-23 stsp goto done;
1894 e40622f4 2020-07-23 stsp free(tree_obj_id);
1896 e40622f4 2020-07-23 stsp got_object_tree_close(tree);
1897 e40622f4 2020-07-23 stsp if (err) {
1898 e40622f4 2020-07-23 stsp free(*link_target);
1899 e40622f4 2020-07-23 stsp *link_target = NULL;
1901 e40622f4 2020-07-23 stsp return err;
1904 ca6e02ac 2020-01-07 stsp const struct got_error *
1905 e40622f4 2020-07-23 stsp got_object_resolve_symlinks(char **link_target, const char *path,
1906 e40622f4 2020-07-23 stsp struct got_object_id *commit_id, struct got_repository *repo)
1908 e40622f4 2020-07-23 stsp const struct got_error *err = NULL;
1909 e40622f4 2020-07-23 stsp char *next_target = NULL;
1910 e40622f4 2020-07-23 stsp int max_recursion = 40; /* matches Git */
1912 e40622f4 2020-07-23 stsp *link_target = NULL;
1915 e40622f4 2020-07-23 stsp err = resolve_symlink(&next_target,
1916 e40622f4 2020-07-23 stsp *link_target ? *link_target : path, commit_id, repo);
1919 e40622f4 2020-07-23 stsp if (next_target) {
1920 e40622f4 2020-07-23 stsp free(*link_target);
1921 e40622f4 2020-07-23 stsp if (--max_recursion == 0) {
1922 e40622f4 2020-07-23 stsp err = got_error_path(path, GOT_ERR_RECURSION);
1923 e40622f4 2020-07-23 stsp *link_target = NULL;
1926 e40622f4 2020-07-23 stsp *link_target = next_target;
1928 e40622f4 2020-07-23 stsp } while (next_target);
1930 e40622f4 2020-07-23 stsp return err;
1933 e40622f4 2020-07-23 stsp const struct got_error *
1934 ca6e02ac 2020-01-07 stsp got_traverse_packed_commits(struct got_object_id_queue *traversed_commits,
1935 ca6e02ac 2020-01-07 stsp struct got_object_id *commit_id, const char *path,
1936 ca6e02ac 2020-01-07 stsp struct got_repository *repo)
1938 ca6e02ac 2020-01-07 stsp const struct got_error *err = NULL;
1939 ca6e02ac 2020-01-07 stsp struct got_pack *pack = NULL;
1940 ca6e02ac 2020-01-07 stsp struct got_packidx *packidx = NULL;
1941 ca6e02ac 2020-01-07 stsp char *path_packfile = NULL;
1942 ca6e02ac 2020-01-07 stsp struct got_commit_object *changed_commit = NULL;
1943 ca6e02ac 2020-01-07 stsp struct got_object_id *changed_commit_id = NULL;
1946 ca6e02ac 2020-01-07 stsp err = got_repo_search_packidx(&packidx, &idx, repo, commit_id);
1947 ca6e02ac 2020-01-07 stsp if (err) {
1948 ca6e02ac 2020-01-07 stsp if (err->code != GOT_ERR_NO_OBJ)
1949 ca6e02ac 2020-01-07 stsp return err;
1950 ca6e02ac 2020-01-07 stsp return NULL;
1953 ca6e02ac 2020-01-07 stsp err = get_packfile_path(&path_packfile, packidx);
1955 ca6e02ac 2020-01-07 stsp return err;
1957 ca6e02ac 2020-01-07 stsp pack = got_repo_get_cached_pack(repo, path_packfile);
1958 ca6e02ac 2020-01-07 stsp if (pack == NULL) {
1959 ca6e02ac 2020-01-07 stsp err = got_repo_cache_pack(&pack, repo, path_packfile, packidx);
1961 ca6e02ac 2020-01-07 stsp goto done;
1964 ca6e02ac 2020-01-07 stsp if (pack->privsep_child == NULL) {
1965 ca6e02ac 2020-01-07 stsp err = start_pack_privsep_child(pack, packidx);
1967 ca6e02ac 2020-01-07 stsp goto done;
1970 ca6e02ac 2020-01-07 stsp err = got_privsep_send_commit_traversal_request(
1971 ca6e02ac 2020-01-07 stsp pack->privsep_child->ibuf, commit_id, idx, path);
1973 ca6e02ac 2020-01-07 stsp goto done;
1975 ca6e02ac 2020-01-07 stsp err = got_privsep_recv_traversed_commits(&changed_commit,
1976 ca6e02ac 2020-01-07 stsp &changed_commit_id, traversed_commits, pack->privsep_child->ibuf);
1978 ca6e02ac 2020-01-07 stsp goto done;
1980 ca6e02ac 2020-01-07 stsp if (changed_commit) {
1982 ca6e02ac 2020-01-07 stsp * Cache the commit in which the path was changed.
1983 ca6e02ac 2020-01-07 stsp * This commit might be opened again soon.
1985 ca6e02ac 2020-01-07 stsp changed_commit->refcnt++;
1986 ca6e02ac 2020-01-07 stsp err = got_repo_cache_commit(repo, changed_commit_id,
1987 ca6e02ac 2020-01-07 stsp changed_commit);
1988 ca6e02ac 2020-01-07 stsp got_object_commit_close(changed_commit);
1991 ca6e02ac 2020-01-07 stsp free(path_packfile);
1992 ca6e02ac 2020-01-07 stsp free(changed_commit_id);
1993 ca6e02ac 2020-01-07 stsp return err;
