2 a1fd68d8 2018-01-12 stsp * Copyright (c) 2018 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>
24 a1fd68d8 2018-01-12 stsp #include <errno.h>
25 2178c42e 2018-04-22 stsp #include <fcntl.h>
26 d71d75ad 2017-11-05 stsp #include <stdio.h>
27 ab9a70b2 2017-11-06 stsp #include <stdlib.h>
28 ab9a70b2 2017-11-06 stsp #include <string.h>
29 2178c42e 2018-04-22 stsp #include <stdint.h>
30 d71d75ad 2017-11-05 stsp #include <sha1.h>
31 ab9a70b2 2017-11-06 stsp #include <zlib.h>
32 ab9a70b2 2017-11-06 stsp #include <ctype.h>
33 ab9a70b2 2017-11-06 stsp #include <limits.h>
34 2178c42e 2018-04-22 stsp #include <imsg.h>
35 788c352e 2018-06-16 stsp #include <time.h>
37 ab9a70b2 2017-11-06 stsp #include "got_error.h"
38 d71d75ad 2017-11-05 stsp #include "got_object.h"
39 ab9a70b2 2017-11-06 stsp #include "got_repository.h"
40 511a516b 2018-05-19 stsp #include "got_opentemp.h"
42 718b3ab0 2018-03-17 stsp #include "got_lib_sha1.h"
43 718b3ab0 2018-03-17 stsp #include "got_lib_delta.h"
44 718b3ab0 2018-03-17 stsp #include "got_lib_pack.h"
45 2178c42e 2018-04-22 stsp #include "got_lib_path.h"
46 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
47 718b3ab0 2018-03-17 stsp #include "got_lib_object.h"
48 2178c42e 2018-04-22 stsp #include "got_lib_privsep.h"
49 7bb0daa1 2018-06-21 stsp #include "got_lib_repository.h"
52 ab9a70b2 2017-11-06 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
55 ab9a70b2 2017-11-06 stsp #ifndef nitems
56 ab9a70b2 2017-11-06 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
59 ab9a70b2 2017-11-06 stsp #define GOT_OBJ_TAG_COMMIT "commit"
60 ab9a70b2 2017-11-06 stsp #define GOT_OBJ_TAG_TREE "tree"
61 ab9a70b2 2017-11-06 stsp #define GOT_OBJ_TAG_BLOB "blob"
63 d1cda826 2017-11-06 stsp #define GOT_COMMIT_TAG_TREE "tree "
64 d1cda826 2017-11-06 stsp #define GOT_COMMIT_TAG_PARENT "parent "
65 d1cda826 2017-11-06 stsp #define GOT_COMMIT_TAG_AUTHOR "author "
66 d1cda826 2017-11-06 stsp #define GOT_COMMIT_TAG_COMMITTER "committer "
68 ef0981d5 2018-02-12 stsp const struct got_error *
69 ef0981d5 2018-02-12 stsp got_object_id_str(char **outbuf, struct got_object_id *id)
71 ef0981d5 2018-02-12 stsp static const size_t len = SHA1_DIGEST_STRING_LENGTH;
73 062ebb78 2018-07-12 stsp *outbuf = malloc(len);
74 ef0981d5 2018-02-12 stsp if (*outbuf == NULL)
75 0a585a0d 2018-03-17 stsp return got_error_from_errno();
77 ef0981d5 2018-02-12 stsp if (got_sha1_digest_to_str(id->sha1, *outbuf, len) == NULL) {
78 ef0981d5 2018-02-12 stsp free(*outbuf);
79 ef0981d5 2018-02-12 stsp *outbuf = NULL;
80 ef0981d5 2018-02-12 stsp return got_error(GOT_ERR_BAD_OBJ_ID_STR);
83 ef0981d5 2018-02-12 stsp return NULL;
87 a1fd68d8 2018-01-12 stsp got_object_id_cmp(struct got_object_id *id1, struct got_object_id *id2)
89 a1fd68d8 2018-01-12 stsp return memcmp(id1->sha1, id2->sha1, SHA1_DIGEST_LENGTH);
92 8bf5b3c9 2018-03-17 stsp struct got_object_id *
93 8bf5b3c9 2018-03-17 stsp got_object_id_dup(struct got_object_id *id1)
95 8bf5b3c9 2018-03-17 stsp struct got_object_id *id2;
97 8bf5b3c9 2018-03-17 stsp id2 = malloc(sizeof(*id2));
98 8bf5b3c9 2018-03-17 stsp if (id2 == NULL)
99 8bf5b3c9 2018-03-17 stsp return NULL;
100 8bf5b3c9 2018-03-17 stsp memcpy(id2, id1, sizeof(*id2));
101 8bf5b3c9 2018-03-17 stsp return id2;
104 3235492e 2018-04-01 stsp struct got_object_id *
105 3235492e 2018-04-01 stsp got_object_get_id(struct got_object *obj)
107 3235492e 2018-04-01 stsp return got_object_id_dup(&obj->id);
110 bacc9935 2018-05-20 stsp const struct got_error *
111 bacc9935 2018-05-20 stsp got_object_get_id_str(char **outbuf, struct got_object *obj)
113 bacc9935 2018-05-20 stsp return got_object_id_str(outbuf, &obj->id);
117 b107e67f 2018-01-19 stsp got_object_get_type(struct got_object *obj)
119 b107e67f 2018-01-19 stsp switch (obj->type) {
120 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_COMMIT:
121 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_TREE:
122 a1fd68d8 2018-01-12 stsp case GOT_OBJ_TYPE_BLOB:
123 b107e67f 2018-01-19 stsp case GOT_OBJ_TYPE_TAG:
124 b107e67f 2018-01-19 stsp return obj->type;
130 96f5e8b3 2018-01-23 stsp /* not reached */
134 ab9a70b2 2017-11-06 stsp static const struct got_error *
135 d1cda826 2017-11-06 stsp parse_object_header(struct got_object **obj, char *buf, size_t len)
137 ab9a70b2 2017-11-06 stsp const char *obj_tags[] = {
138 ab9a70b2 2017-11-06 stsp GOT_OBJ_TAG_COMMIT,
139 ab9a70b2 2017-11-06 stsp GOT_OBJ_TAG_TREE,
140 ab9a70b2 2017-11-06 stsp GOT_OBJ_TAG_BLOB
142 ab9a70b2 2017-11-06 stsp const int obj_types[] = {
143 ab9a70b2 2017-11-06 stsp GOT_OBJ_TYPE_COMMIT,
144 ab9a70b2 2017-11-06 stsp GOT_OBJ_TYPE_TREE,
145 ab9a70b2 2017-11-06 stsp GOT_OBJ_TYPE_BLOB,
147 ab9a70b2 2017-11-06 stsp int type = 0;
148 d1cda826 2017-11-06 stsp size_t size = 0, hdrlen = 0;
150 ab9a70b2 2017-11-06 stsp char *p = strchr(buf, '\0');
152 ab9a70b2 2017-11-06 stsp if (p == NULL)
153 ab9a70b2 2017-11-06 stsp return got_error(GOT_ERR_BAD_OBJ_HDR);
155 d1cda826 2017-11-06 stsp hdrlen = strlen(buf) + 1 /* '\0' */;
157 ab9a70b2 2017-11-06 stsp for (i = 0; i < nitems(obj_tags); i++) {
158 ab9a70b2 2017-11-06 stsp const char *tag = obj_tags[i];
159 63323519 2017-11-06 stsp size_t tlen = strlen(tag);
160 ab9a70b2 2017-11-06 stsp const char *errstr;
162 63323519 2017-11-06 stsp if (strncmp(buf, tag, tlen) != 0)
165 ab9a70b2 2017-11-06 stsp type = obj_types[i];
166 63323519 2017-11-06 stsp if (len <= tlen)
167 ab9a70b2 2017-11-06 stsp return got_error(GOT_ERR_BAD_OBJ_HDR);
168 63323519 2017-11-06 stsp size = strtonum(buf + tlen, 0, LONG_MAX, &errstr);
169 ab9a70b2 2017-11-06 stsp if (errstr != NULL)
170 ab9a70b2 2017-11-06 stsp return got_error(GOT_ERR_BAD_OBJ_HDR);
174 ab9a70b2 2017-11-06 stsp if (type == 0)
175 ab9a70b2 2017-11-06 stsp return got_error(GOT_ERR_BAD_OBJ_HDR);
177 ab9a70b2 2017-11-06 stsp *obj = calloc(1, sizeof(**obj));
178 1db76ab5 2018-01-26 mpi if (*obj == NULL)
179 0a585a0d 2018-03-17 stsp return got_error_from_errno();
180 ab9a70b2 2017-11-06 stsp (*obj)->type = type;
181 d1cda826 2017-11-06 stsp (*obj)->hdrlen = hdrlen;
182 ab9a70b2 2017-11-06 stsp (*obj)->size = size;
183 ab9a70b2 2017-11-06 stsp return NULL;
186 ab9a70b2 2017-11-06 stsp static const struct got_error *
187 4842267f 2018-06-22 stsp read_object_header(struct got_object **obj, int fd)
189 ab9a70b2 2017-11-06 stsp const struct got_error *err;
190 ab9a70b2 2017-11-06 stsp struct got_zstream_buf zb;
192 a3e2cbea 2017-12-01 stsp const size_t zbsize = 64;
193 744d9326 2017-12-01 stsp size_t outlen, totlen;
196 062ebb78 2018-07-12 stsp buf = malloc(zbsize);
197 a3e2cbea 2017-12-01 stsp if (buf == NULL)
198 0a585a0d 2018-03-17 stsp return got_error_from_errno();
200 19d747f7 2018-03-16 stsp err = got_inflate_init(&zb, NULL, zbsize);
202 ab9a70b2 2017-11-06 stsp return err;
205 744d9326 2017-12-01 stsp totlen = 0;
207 4842267f 2018-06-22 stsp err = got_inflate_read_fd(&zb, fd, &outlen);
210 e302c59e 2017-12-01 stsp if (strchr(zb.outbuf, '\0') == NULL) {
211 062ebb78 2018-07-12 stsp buf = reallocarray(buf, 2 + i, zbsize);
212 e302c59e 2017-12-01 stsp if (buf == NULL) {
213 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
217 c56976de 2017-12-01 stsp memcpy(buf + totlen, zb.outbuf, outlen);
218 744d9326 2017-12-01 stsp totlen += outlen;
220 a3e2cbea 2017-12-01 stsp } while (strchr(zb.outbuf, '\0') == NULL);
222 744d9326 2017-12-01 stsp err = parse_object_header(obj, buf, totlen);
224 4ca7b755 2018-01-26 stsp got_inflate_end(&zb);
225 2178c42e 2018-04-22 stsp return err;
228 302b7dd6 2018-04-23 stsp static void
229 302b7dd6 2018-04-23 stsp read_object_header_privsep_child(int obj_fd, int imsg_fds[2])
231 302b7dd6 2018-04-23 stsp const struct got_error *err = NULL;
232 e3306bd9 2018-04-23 stsp struct got_object *obj = NULL;
233 e3306bd9 2018-04-23 stsp struct imsgbuf ibuf;
234 302b7dd6 2018-04-23 stsp int status = 0;
236 be37c2e6 2018-04-24 stsp setproctitle("read object header");
237 302b7dd6 2018-04-23 stsp close(imsg_fds[0]);
238 e3306bd9 2018-04-23 stsp imsg_init(&ibuf, imsg_fds[1]);
240 302b7dd6 2018-04-23 stsp /* revoke access to most system calls */
241 302b7dd6 2018-04-23 stsp if (pledge("stdio", NULL) == -1) {
242 302b7dd6 2018-04-23 stsp err = got_error_from_errno();
246 4842267f 2018-06-22 stsp err = read_object_header(&obj, obj_fd);
250 e3306bd9 2018-04-23 stsp err = got_privsep_send_obj(&ibuf, obj, 0);
253 e3306bd9 2018-04-23 stsp got_object_close(obj);
255 e3306bd9 2018-04-23 stsp got_privsep_send_error(&ibuf, err);
256 302b7dd6 2018-04-23 stsp status = 1;
258 4842267f 2018-06-22 stsp close(obj_fd);
259 e3306bd9 2018-04-23 stsp imsg_clear(&ibuf);
260 302b7dd6 2018-04-23 stsp close(imsg_fds[1]);
261 302b7dd6 2018-04-23 stsp _exit(status);
264 b419fc47 2018-04-26 stsp static const struct got_error *
265 b419fc47 2018-04-26 stsp wait_for_child(pid_t pid)
267 b419fc47 2018-04-26 stsp int child_status;
269 b419fc47 2018-04-26 stsp waitpid(pid, &child_status, 0);
271 b419fc47 2018-04-26 stsp if (!WIFEXITED(child_status))
272 b419fc47 2018-04-26 stsp return got_error(GOT_ERR_PRIVSEP_DIED);
274 b419fc47 2018-04-26 stsp if (WEXITSTATUS(child_status) != 0)
275 b419fc47 2018-04-26 stsp return got_error(GOT_ERR_PRIVSEP_EXIT);
277 b419fc47 2018-04-26 stsp return NULL;
280 2178c42e 2018-04-22 stsp static const struct got_error *
281 2178c42e 2018-04-22 stsp read_object_header_privsep(struct got_object **obj, int fd)
283 2178c42e 2018-04-22 stsp struct imsgbuf parent_ibuf;
284 2178c42e 2018-04-22 stsp int imsg_fds[2];
285 b419fc47 2018-04-26 stsp const struct got_error *err = NULL, *err_child = NULL;
288 2178c42e 2018-04-22 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
289 2178c42e 2018-04-22 stsp return got_error_from_errno();
291 2178c42e 2018-04-22 stsp pid = fork();
292 2178c42e 2018-04-22 stsp if (pid == -1)
293 2178c42e 2018-04-22 stsp return got_error_from_errno();
294 2178c42e 2018-04-22 stsp else if (pid == 0) {
295 302b7dd6 2018-04-23 stsp read_object_header_privsep_child(fd, imsg_fds);
296 302b7dd6 2018-04-23 stsp /* not reached */
299 2178c42e 2018-04-22 stsp close(imsg_fds[1]);
300 2178c42e 2018-04-22 stsp imsg_init(&parent_ibuf, imsg_fds[0]);
301 2178c42e 2018-04-22 stsp err = got_privsep_recv_obj(obj, &parent_ibuf);
302 2178c42e 2018-04-22 stsp imsg_clear(&parent_ibuf);
303 b419fc47 2018-04-26 stsp err_child = wait_for_child(pid);
304 2178c42e 2018-04-22 stsp close(imsg_fds[0]);
305 b419fc47 2018-04-26 stsp return err ? err : err_child;
308 d1cda826 2017-11-06 stsp static const struct got_error *
309 4558fcd4 2018-01-14 stsp object_path(char **path, struct got_object_id *id, struct got_repository *repo)
311 ab9a70b2 2017-11-06 stsp const struct got_error *err = NULL;
312 7a132809 2018-07-23 stsp char *hex = NULL;
313 d1cda826 2017-11-06 stsp char *path_objects = got_repo_get_path_objects(repo);
315 e6b1056e 2018-04-22 stsp *path = NULL;
317 ab9a70b2 2017-11-06 stsp if (path_objects == NULL)
318 0a585a0d 2018-03-17 stsp return got_error_from_errno();
320 ef0981d5 2018-02-12 stsp err = got_object_id_str(&hex, id);
324 d1cda826 2017-11-06 stsp if (asprintf(path, "%s/%.2x/%s", path_objects,
325 d1cda826 2017-11-06 stsp id->sha1[0], hex + 2) == -1)
326 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
330 d1cda826 2017-11-06 stsp free(path_objects);
331 d1cda826 2017-11-06 stsp return err;
334 4ee4114f 2018-01-23 stsp static const struct got_error *
335 d5003b79 2018-04-22 stsp open_loose_object(int *fd, struct got_object *obj, struct got_repository *repo)
337 d1cda826 2017-11-06 stsp const struct got_error *err = NULL;
338 a1fd68d8 2018-01-12 stsp char *path;
340 6c00b545 2018-01-17 stsp err = object_path(&path, &obj->id, repo);
342 d1cda826 2017-11-06 stsp return err;
343 d5003b79 2018-04-22 stsp *fd = open(path, O_RDONLY | O_NOFOLLOW, GOT_DEFAULT_FILE_MODE);
344 d5003b79 2018-04-22 stsp if (*fd == -1) {
345 6c00b545 2018-01-17 stsp err = got_error_from_errno();
349 4558fcd4 2018-01-14 stsp free(path);
350 4558fcd4 2018-01-14 stsp return err;
353 4558fcd4 2018-01-14 stsp const struct got_error *
354 4558fcd4 2018-01-14 stsp got_object_open(struct got_object **obj, struct got_repository *repo,
355 4558fcd4 2018-01-14 stsp struct got_object_id *id)
357 6c00b545 2018-01-17 stsp const struct got_error *err = NULL;
358 6c00b545 2018-01-17 stsp char *path;
361 7bb0daa1 2018-06-21 stsp *obj = got_repo_get_cached_object(repo, id);
362 7bb0daa1 2018-06-21 stsp if (*obj != NULL) {
363 7bb0daa1 2018-06-21 stsp (*obj)->refcnt++;
364 7bb0daa1 2018-06-21 stsp return NULL;
367 6c00b545 2018-01-17 stsp err = object_path(&path, id, repo);
369 4558fcd4 2018-01-14 stsp return err;
371 2178c42e 2018-04-22 stsp fd = open(path, O_RDONLY | O_NOFOLLOW, GOT_DEFAULT_FILE_MODE);
372 2178c42e 2018-04-22 stsp if (fd == -1) {
373 6c00b545 2018-01-17 stsp if (errno != ENOENT) {
374 6c00b545 2018-01-17 stsp err = got_error_from_errno();
377 6c00b545 2018-01-17 stsp err = got_packfile_open_object(obj, id, repo);
380 6c00b545 2018-01-17 stsp if (*obj == NULL)
381 6c00b545 2018-01-17 stsp err = got_error(GOT_ERR_NO_OBJ);
383 2178c42e 2018-04-22 stsp err = read_object_header_privsep(obj, fd);
386 ab9a70b2 2017-11-06 stsp memcpy((*obj)->id.sha1, id->sha1, SHA1_DIGEST_LENGTH);
389 7bb0daa1 2018-06-21 stsp if (err == NULL) {
390 7bb0daa1 2018-06-21 stsp (*obj)->refcnt++;
391 7bb0daa1 2018-06-21 stsp err = got_repo_cache_object(repo, id, *obj);
394 6c00b545 2018-01-17 stsp free(path);
395 2178c42e 2018-04-22 stsp if (fd != -1)
397 ab9a70b2 2017-11-06 stsp return err;
401 6dfa2fd3 2018-02-12 stsp const struct got_error *
402 6dfa2fd3 2018-02-12 stsp got_object_open_by_id_str(struct got_object **obj, struct got_repository *repo,
403 6dfa2fd3 2018-02-12 stsp const char *id_str)
405 6dfa2fd3 2018-02-12 stsp struct got_object_id id;
407 6dfa2fd3 2018-02-12 stsp if (!got_parse_sha1_digest(id.sha1, id_str))
408 6dfa2fd3 2018-02-12 stsp return got_error(GOT_ERR_BAD_OBJ_ID_STR);
410 6dfa2fd3 2018-02-12 stsp return got_object_open(obj, repo, &id);
414 ab9a70b2 2017-11-06 stsp got_object_close(struct got_object *obj)
416 7bb0daa1 2018-06-21 stsp if (obj->refcnt > 0) {
417 7bb0daa1 2018-06-21 stsp obj->refcnt--;
418 cc538cdd 2018-06-22 stsp if (obj->refcnt > 0)
422 96f5e8b3 2018-01-23 stsp if (obj->flags & GOT_OBJ_FLAG_DELTIFIED) {
423 c3703302 2018-01-23 stsp struct got_delta *delta;
424 96f5e8b3 2018-01-23 stsp while (!SIMPLEQ_EMPTY(&obj->deltas.entries)) {
425 c3703302 2018-01-23 stsp delta = SIMPLEQ_FIRST(&obj->deltas.entries);
426 96f5e8b3 2018-01-23 stsp SIMPLEQ_REMOVE_HEAD(&obj->deltas.entries, entry);
427 c3703302 2018-01-23 stsp got_delta_close(delta);
430 96f5e8b3 2018-01-23 stsp if (obj->flags & GOT_OBJ_FLAG_PACKED)
431 96f5e8b3 2018-01-23 stsp free(obj->path_packfile);
435 bff6ca00 2018-04-23 stsp struct got_commit_object *
436 bff6ca00 2018-04-23 stsp got_object_commit_alloc_partial(void)
438 bff6ca00 2018-04-23 stsp struct got_commit_object *commit;
440 bff6ca00 2018-04-23 stsp commit = calloc(1, sizeof(*commit));
441 bff6ca00 2018-04-23 stsp if (commit == NULL)
442 bff6ca00 2018-04-23 stsp return NULL;
443 bff6ca00 2018-04-23 stsp commit->tree_id = calloc(1, sizeof(*commit->tree_id));
444 bff6ca00 2018-04-23 stsp if (commit->tree_id == NULL) {
445 bff6ca00 2018-04-23 stsp free(commit);
446 bff6ca00 2018-04-23 stsp return NULL;
449 bff6ca00 2018-04-23 stsp SIMPLEQ_INIT(&commit->parent_ids);
451 bff6ca00 2018-04-23 stsp return commit;
454 bff6ca00 2018-04-23 stsp const struct got_error *
455 be6a1b5a 2018-06-11 stsp got_object_open_as_commit(struct got_commit_object **commit,
456 be6a1b5a 2018-06-11 stsp struct got_repository *repo, struct got_object_id *id)
458 be6a1b5a 2018-06-11 stsp const struct got_error *err;
459 be6a1b5a 2018-06-11 stsp struct got_object *obj;
461 835e0dbd 2018-06-21 stsp *commit = NULL;
463 be6a1b5a 2018-06-11 stsp err = got_object_open(&obj, repo, id);
465 be6a1b5a 2018-06-11 stsp return err;
466 be6a1b5a 2018-06-11 stsp if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
467 be6a1b5a 2018-06-11 stsp err = got_error(GOT_ERR_OBJ_TYPE);
471 be6a1b5a 2018-06-11 stsp err = got_object_commit_open(commit, repo, obj);
473 be6a1b5a 2018-06-11 stsp got_object_close(obj);
474 be6a1b5a 2018-06-11 stsp return err;
477 be6a1b5a 2018-06-11 stsp const struct got_error *
478 dbc6a6b6 2018-07-12 stsp got_object_qid_alloc(struct got_object_qid **qid, struct got_object_id *id)
480 dbc6a6b6 2018-07-12 stsp const struct got_error *err = NULL;
482 dbc6a6b6 2018-07-12 stsp *qid = calloc(1, sizeof(**qid));
483 dbc6a6b6 2018-07-12 stsp if (*qid == NULL)
484 dbc6a6b6 2018-07-12 stsp return got_error_from_errno();
486 dbc6a6b6 2018-07-12 stsp (*qid)->id = got_object_id_dup(id);
487 dbc6a6b6 2018-07-12 stsp if ((*qid)->id == NULL) {
488 dbc6a6b6 2018-07-12 stsp err = got_error_from_errno();
489 fa2f6902 2018-07-23 stsp got_object_qid_free(*qid);
490 dbc6a6b6 2018-07-12 stsp *qid = NULL;
491 dbc6a6b6 2018-07-12 stsp return err;
494 dbc6a6b6 2018-07-12 stsp return NULL;
498 dbc6a6b6 2018-07-12 stsp got_object_qid_free(struct got_object_qid *qid)
500 dbc6a6b6 2018-07-12 stsp free(qid->id);
504 dbc6a6b6 2018-07-12 stsp const struct got_error *
505 bff6ca00 2018-04-23 stsp got_object_commit_add_parent(struct got_commit_object *commit,
506 bff6ca00 2018-04-23 stsp const char *id_str)
508 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
509 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
511 062ebb78 2018-07-12 stsp qid = malloc(sizeof(*qid));
512 79f35eb3 2018-06-11 stsp if (qid == NULL)
513 bff6ca00 2018-04-23 stsp return got_error_from_errno();
515 062ebb78 2018-07-12 stsp qid->id = malloc(sizeof(*qid->id));
516 79f35eb3 2018-06-11 stsp if (qid->id == NULL) {
517 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
518 fa2f6902 2018-07-23 stsp got_object_qid_free(qid);
519 bff6ca00 2018-04-23 stsp return err;
522 79f35eb3 2018-06-11 stsp if (!got_parse_sha1_digest(qid->id->sha1, id_str)) {
523 bff6ca00 2018-04-23 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
524 79f35eb3 2018-06-11 stsp free(qid->id);
526 bff6ca00 2018-04-23 stsp return err;
529 79f35eb3 2018-06-11 stsp SIMPLEQ_INSERT_TAIL(&commit->parent_ids, qid, entry);
530 bff6ca00 2018-04-23 stsp commit->nparents++;
532 4626e416 2018-06-10 stsp return NULL;
535 4626e416 2018-06-10 stsp static const struct got_error *
536 788c352e 2018-06-16 stsp parse_gmtoff(time_t *gmtoff, const char *tzstr)
538 788c352e 2018-06-16 stsp int sign = 1;
539 788c352e 2018-06-16 stsp const char *p = tzstr;
540 788c352e 2018-06-16 stsp time_t h, m;
542 788c352e 2018-06-16 stsp *gmtoff = 0;
544 788c352e 2018-06-16 stsp if (*p == '-')
546 788c352e 2018-06-16 stsp else if (*p != '+')
547 788c352e 2018-06-16 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
549 788c352e 2018-06-16 stsp if (!isdigit(*p) && !isdigit(*(p + 1)))
550 788c352e 2018-06-16 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
551 788c352e 2018-06-16 stsp h = (((*p - '0') * 10) + (*(p + 1) - '0'));
554 788c352e 2018-06-16 stsp if (!isdigit(*p) && !isdigit(*(p + 1)))
555 788c352e 2018-06-16 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
556 788c352e 2018-06-16 stsp m = ((*p - '0') * 10) + (*(p + 1) - '0');
558 788c352e 2018-06-16 stsp *gmtoff = (h * 60 * 60 + m * 60) * sign;
559 788c352e 2018-06-16 stsp return NULL;
562 788c352e 2018-06-16 stsp static const struct got_error *
563 788c352e 2018-06-16 stsp parse_commit_time(struct tm *tm, char *committer)
565 788c352e 2018-06-16 stsp const struct got_error *err = NULL;
566 788c352e 2018-06-16 stsp const char *errstr;
567 788c352e 2018-06-16 stsp char *space, *tzstr;
568 788c352e 2018-06-16 stsp time_t gmtoff;
569 788c352e 2018-06-16 stsp time_t time;
571 788c352e 2018-06-16 stsp /* Parse and strip off trailing timezone indicator string. */
572 4626e416 2018-06-10 stsp space = strrchr(committer, ' ');
573 4626e416 2018-06-10 stsp if (space == NULL)
574 4626e416 2018-06-10 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
575 788c352e 2018-06-16 stsp tzstr = strdup(space + 1);
576 788c352e 2018-06-16 stsp if (tzstr == NULL)
577 6c281f94 2018-06-11 stsp return got_error_from_errno();
578 788c352e 2018-06-16 stsp err = parse_gmtoff(&gmtoff, tzstr);
579 788c352e 2018-06-16 stsp free(tzstr);
581 788c352e 2018-06-16 stsp return err;
582 4626e416 2018-06-10 stsp *space = '\0';
584 4626e416 2018-06-10 stsp /* Timestamp is separated from committer name + email by space. */
585 4626e416 2018-06-10 stsp space = strrchr(committer, ' ');
586 4626e416 2018-06-10 stsp if (space == NULL)
587 4626e416 2018-06-10 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
589 788c352e 2018-06-16 stsp /* Timestamp parsed here is expressed in comitter's local time. */
590 788c352e 2018-06-16 stsp time = strtonum(space + 1, 0, INT64_MAX, &errstr);
591 4626e416 2018-06-10 stsp if (errstr)
592 4626e416 2018-06-10 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
594 788c352e 2018-06-16 stsp /* Express the time stamp in UTC. */
595 788c352e 2018-06-16 stsp memset(tm, 0, sizeof(*tm));
596 788c352e 2018-06-16 stsp time -= gmtoff;
597 788c352e 2018-06-16 stsp if (localtime_r(&time, tm) == NULL)
598 788c352e 2018-06-16 stsp return got_error_from_errno();
599 788c352e 2018-06-16 stsp tm->tm_gmtoff = gmtoff;
601 4626e416 2018-06-10 stsp /* Strip off parsed time information, leaving just author and email. */
602 4626e416 2018-06-10 stsp *space = '\0';
604 bff6ca00 2018-04-23 stsp return NULL;
607 d1cda826 2017-11-06 stsp static const struct got_error *
608 d1cda826 2017-11-06 stsp parse_commit_object(struct got_commit_object **commit, char *buf, size_t len)
610 d1cda826 2017-11-06 stsp const struct got_error *err = NULL;
611 d1cda826 2017-11-06 stsp char *s = buf;
612 d1cda826 2017-11-06 stsp size_t tlen;
613 d1cda826 2017-11-06 stsp ssize_t remain = (ssize_t)len;
615 bff6ca00 2018-04-23 stsp *commit = got_object_commit_alloc_partial();
616 d1cda826 2017-11-06 stsp if (*commit == NULL)
617 0a585a0d 2018-03-17 stsp return got_error_from_errno();
619 d1cda826 2017-11-06 stsp tlen = strlen(GOT_COMMIT_TAG_TREE);
620 d1cda826 2017-11-06 stsp if (strncmp(s, GOT_COMMIT_TAG_TREE, tlen) == 0) {
621 d1cda826 2017-11-06 stsp remain -= tlen;
622 d1cda826 2017-11-06 stsp if (remain < SHA1_DIGEST_STRING_LENGTH) {
623 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
627 59ece79d 2018-02-12 stsp if (!got_parse_sha1_digest((*commit)->tree_id->sha1, s)) {
628 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
631 d1cda826 2017-11-06 stsp remain -= SHA1_DIGEST_STRING_LENGTH;
632 d1cda826 2017-11-06 stsp s += SHA1_DIGEST_STRING_LENGTH;
634 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
638 d1cda826 2017-11-06 stsp tlen = strlen(GOT_COMMIT_TAG_PARENT);
639 d1cda826 2017-11-06 stsp while (strncmp(s, GOT_COMMIT_TAG_PARENT, tlen) == 0) {
640 d1cda826 2017-11-06 stsp remain -= tlen;
641 d1cda826 2017-11-06 stsp if (remain < SHA1_DIGEST_STRING_LENGTH) {
642 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
646 bff6ca00 2018-04-23 stsp err = got_object_commit_add_parent(*commit, s);
650 eb651edf 2018-02-11 stsp remain -= SHA1_DIGEST_STRING_LENGTH;
651 d1cda826 2017-11-06 stsp s += SHA1_DIGEST_STRING_LENGTH;
654 d1cda826 2017-11-06 stsp tlen = strlen(GOT_COMMIT_TAG_AUTHOR);
655 d1cda826 2017-11-06 stsp if (strncmp(s, GOT_COMMIT_TAG_AUTHOR, tlen) == 0) {
657 4626e416 2018-06-10 stsp size_t slen;
659 d1cda826 2017-11-06 stsp remain -= tlen;
660 d1cda826 2017-11-06 stsp if (remain <= 0) {
661 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
665 d1cda826 2017-11-06 stsp p = strchr(s, '\n');
666 d1cda826 2017-11-06 stsp if (p == NULL) {
667 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
671 4626e416 2018-06-10 stsp slen = strlen(s);
672 788c352e 2018-06-16 stsp err = parse_commit_time(&(*commit)->tm_author, s);
675 d1cda826 2017-11-06 stsp (*commit)->author = strdup(s);
676 d1cda826 2017-11-06 stsp if ((*commit)->author == NULL) {
677 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
680 4626e416 2018-06-10 stsp s += slen + 1;
681 4626e416 2018-06-10 stsp remain -= slen + 1;
684 d1cda826 2017-11-06 stsp tlen = strlen(GOT_COMMIT_TAG_COMMITTER);
685 d1cda826 2017-11-06 stsp if (strncmp(s, GOT_COMMIT_TAG_COMMITTER, tlen) == 0) {
687 4626e416 2018-06-10 stsp size_t slen;
689 d1cda826 2017-11-06 stsp remain -= tlen;
690 d1cda826 2017-11-06 stsp if (remain <= 0) {
691 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
695 d1cda826 2017-11-06 stsp p = strchr(s, '\n');
696 d1cda826 2017-11-06 stsp if (p == NULL) {
697 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
701 4626e416 2018-06-10 stsp slen = strlen(s);
702 788c352e 2018-06-16 stsp err = parse_commit_time(&(*commit)->tm_committer, s);
705 d1cda826 2017-11-06 stsp (*commit)->committer = strdup(s);
706 d1cda826 2017-11-06 stsp if ((*commit)->committer == NULL) {
707 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
710 4626e416 2018-06-10 stsp s += slen + 1;
711 4626e416 2018-06-10 stsp remain -= slen + 1;
714 eb651edf 2018-02-11 stsp (*commit)->logmsg = strndup(s, remain);
715 eb651edf 2018-02-11 stsp if ((*commit)->logmsg == NULL) {
716 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
721 d1cda826 2017-11-06 stsp got_object_commit_close(*commit);
722 59ece79d 2018-02-12 stsp *commit = NULL;
724 0ffeb3c2 2017-11-26 stsp return err;
727 0ffeb3c2 2017-11-26 stsp static void
728 0ffeb3c2 2017-11-26 stsp tree_entry_close(struct got_tree_entry *te)
730 59ece79d 2018-02-12 stsp free(te->id);
731 0ffeb3c2 2017-11-26 stsp free(te->name);
735 e033d803 2018-04-23 stsp struct got_tree_entry *
736 e033d803 2018-04-23 stsp got_alloc_tree_entry_partial(void)
738 e033d803 2018-04-23 stsp struct got_tree_entry *te;
740 e033d803 2018-04-23 stsp te = calloc(1, sizeof(*te));
741 e033d803 2018-04-23 stsp if (te == NULL)
742 e033d803 2018-04-23 stsp return NULL;
744 e033d803 2018-04-23 stsp te->id = calloc(1, sizeof(*te->id));
745 e033d803 2018-04-23 stsp if (te->id == NULL) {
752 0ffeb3c2 2017-11-26 stsp static const struct got_error *
753 0ffeb3c2 2017-11-26 stsp parse_tree_entry(struct got_tree_entry **te, size_t *elen, char *buf,
754 0ffeb3c2 2017-11-26 stsp size_t maxlen)
756 0ffeb3c2 2017-11-26 stsp char *p = buf, *space;
757 0ffeb3c2 2017-11-26 stsp const struct got_error *err = NULL;
759 e033d803 2018-04-23 stsp *te = got_alloc_tree_entry_partial();
760 0ffeb3c2 2017-11-26 stsp if (*te == NULL)
761 0a585a0d 2018-03-17 stsp return got_error_from_errno();
763 0ffeb3c2 2017-11-26 stsp *elen = strlen(buf) + 1;
764 0ffeb3c2 2017-11-26 stsp if (*elen > maxlen) {
766 59ece79d 2018-02-12 stsp *te = NULL;
767 0ffeb3c2 2017-11-26 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
770 0ffeb3c2 2017-11-26 stsp space = strchr(buf, ' ');
771 0ffeb3c2 2017-11-26 stsp if (space == NULL) {
772 0a585a0d 2018-03-17 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
774 59ece79d 2018-02-12 stsp *te = NULL;
775 0a585a0d 2018-03-17 stsp return err;
777 0ffeb3c2 2017-11-26 stsp while (*p != ' ') {
778 0ffeb3c2 2017-11-26 stsp if (*p < '0' && *p > '7') {
779 0ffeb3c2 2017-11-26 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
782 0ffeb3c2 2017-11-26 stsp (*te)->mode <<= 3;
783 0ffeb3c2 2017-11-26 stsp (*te)->mode |= *p - '0';
787 0ffeb3c2 2017-11-26 stsp (*te)->name = strdup(space + 1);
788 0ffeb3c2 2017-11-26 stsp if (*elen > maxlen || maxlen - *elen < SHA1_DIGEST_LENGTH) {
789 0ffeb3c2 2017-11-26 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
792 0ffeb3c2 2017-11-26 stsp buf += strlen(buf) + 1;
793 59ece79d 2018-02-12 stsp memcpy((*te)->id->sha1, buf, SHA1_DIGEST_LENGTH);
794 0ffeb3c2 2017-11-26 stsp *elen += SHA1_DIGEST_LENGTH;
797 0ffeb3c2 2017-11-26 stsp tree_entry_close(*te);
798 59ece79d 2018-02-12 stsp *te = NULL;
800 d1cda826 2017-11-06 stsp return err;
803 d1cda826 2017-11-06 stsp static const struct got_error *
804 e033d803 2018-04-23 stsp parse_tree_object(struct got_tree_object **tree, uint8_t *buf, size_t len)
806 90356acc 2018-01-27 stsp const struct got_error *err;
807 0ffeb3c2 2017-11-26 stsp size_t remain = len;
809 0ffeb3c2 2017-11-26 stsp *tree = calloc(1, sizeof(**tree));
810 0ffeb3c2 2017-11-26 stsp if (*tree == NULL)
811 0a585a0d 2018-03-17 stsp return got_error_from_errno();
813 883f0469 2018-06-23 stsp SIMPLEQ_INIT(&(*tree)->entries.head);
815 0ffeb3c2 2017-11-26 stsp while (remain > 0) {
816 0ffeb3c2 2017-11-26 stsp struct got_tree_entry *te;
817 0ffeb3c2 2017-11-26 stsp size_t elen;
819 90356acc 2018-01-27 stsp err = parse_tree_entry(&te, &elen, buf, remain);
821 90356acc 2018-01-27 stsp return err;
822 883f0469 2018-06-23 stsp (*tree)->entries.nentries++;
823 883f0469 2018-06-23 stsp SIMPLEQ_INSERT_TAIL(&(*tree)->entries.head, te, entry);
824 0ffeb3c2 2017-11-26 stsp buf += elen;
825 0ffeb3c2 2017-11-26 stsp remain -= elen;
828 0ffeb3c2 2017-11-26 stsp if (remain != 0) {
829 0ffeb3c2 2017-11-26 stsp got_object_tree_close(*tree);
830 0ffeb3c2 2017-11-26 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
833 0ffeb3c2 2017-11-26 stsp return NULL;
836 0ffeb3c2 2017-11-26 stsp static const struct got_error *
837 eb651edf 2018-02-11 stsp read_to_mem(uint8_t **outbuf, size_t *outlen, FILE *f)
839 eb651edf 2018-02-11 stsp const struct got_error *err = NULL;
840 eb651edf 2018-02-11 stsp static const size_t blocksize = 512;
841 eb651edf 2018-02-11 stsp size_t n, total, remain;
842 eb651edf 2018-02-11 stsp uint8_t *buf;
844 eb651edf 2018-02-11 stsp *outbuf = NULL;
845 eb651edf 2018-02-11 stsp *outlen = 0;
847 062ebb78 2018-07-12 stsp buf = malloc(blocksize);
848 eb651edf 2018-02-11 stsp if (buf == NULL)
849 0a585a0d 2018-03-17 stsp return got_error_from_errno();
851 eb651edf 2018-02-11 stsp remain = blocksize;
853 eb651edf 2018-02-11 stsp while (1) {
854 eb651edf 2018-02-11 stsp if (remain == 0) {
855 eb651edf 2018-02-11 stsp uint8_t *newbuf;
856 eb651edf 2018-02-11 stsp newbuf = reallocarray(buf, 1, total + blocksize);
857 eb651edf 2018-02-11 stsp if (newbuf == NULL) {
858 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
861 eb651edf 2018-02-11 stsp buf = newbuf;
862 eb651edf 2018-02-11 stsp remain += blocksize;
864 be89e2b1 2018-03-03 stsp n = fread(buf + total, 1, remain, f);
865 eb651edf 2018-02-11 stsp if (n == 0) {
866 eb651edf 2018-02-11 stsp if (ferror(f)) {
867 eb651edf 2018-02-11 stsp err = got_ferror(f, GOT_ERR_IO);
870 eb651edf 2018-02-11 stsp break; /* EOF */
872 eb651edf 2018-02-11 stsp remain -= n;
873 eb651edf 2018-02-11 stsp total += n;
877 eb651edf 2018-02-11 stsp if (err == NULL) {
878 eb651edf 2018-02-11 stsp *outbuf = buf;
879 eb651edf 2018-02-11 stsp *outlen = total;
882 eb651edf 2018-02-11 stsp return err;
885 eb651edf 2018-02-11 stsp static const struct got_error *
886 bff6ca00 2018-04-23 stsp read_commit_object(struct got_commit_object **commit, struct got_object *obj,
889 d1cda826 2017-11-06 stsp const struct got_error *err = NULL;
890 d1cda826 2017-11-06 stsp size_t len;
891 eb651edf 2018-02-11 stsp uint8_t *p;
893 eb651edf 2018-02-11 stsp if (obj->flags & GOT_OBJ_FLAG_PACKED)
894 eb651edf 2018-02-11 stsp err = read_to_mem(&p, &len, f);
896 eb651edf 2018-02-11 stsp err = got_inflate_to_mem(&p, &len, f);
898 d1cda826 2017-11-06 stsp return err;
900 d1cda826 2017-11-06 stsp if (len < obj->hdrlen + obj->size) {
901 d1cda826 2017-11-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
905 d1cda826 2017-11-06 stsp /* Skip object header. */
906 d1cda826 2017-11-06 stsp len -= obj->hdrlen;
907 eb651edf 2018-02-11 stsp err = parse_commit_object(commit, p + obj->hdrlen, len);
910 d1cda826 2017-11-06 stsp return err;
913 bff6ca00 2018-04-23 stsp static void
914 bff6ca00 2018-04-23 stsp read_commit_object_privsep_child(struct got_object *obj, int obj_fd,
915 bff6ca00 2018-04-23 stsp int imsg_fds[2])
917 bff6ca00 2018-04-23 stsp const struct got_error *err = NULL;
918 bff6ca00 2018-04-23 stsp struct got_commit_object *commit = NULL;
919 bff6ca00 2018-04-23 stsp struct imsgbuf ibuf;
920 bff6ca00 2018-04-23 stsp FILE *f = NULL;
921 bff6ca00 2018-04-23 stsp int status = 0;
923 be37c2e6 2018-04-24 stsp setproctitle("read commit object");
924 bff6ca00 2018-04-23 stsp close(imsg_fds[0]);
925 bff6ca00 2018-04-23 stsp imsg_init(&ibuf, imsg_fds[1]);
927 bff6ca00 2018-04-23 stsp /* revoke access to most system calls */
928 bff6ca00 2018-04-23 stsp if (pledge("stdio", NULL) == -1) {
929 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
933 bff6ca00 2018-04-23 stsp f = fdopen(obj_fd, "rb");
934 bff6ca00 2018-04-23 stsp if (f == NULL) {
935 bff6ca00 2018-04-23 stsp err = got_error_from_errno();
936 bff6ca00 2018-04-23 stsp close(obj_fd);
940 bff6ca00 2018-04-23 stsp err = read_commit_object(&commit, obj, f);
944 068fd2bf 2018-04-24 stsp err = got_privsep_send_commit(&ibuf, commit);
946 bff6ca00 2018-04-23 stsp if (commit)
947 bff6ca00 2018-04-23 stsp got_object_commit_close(commit);
949 bff6ca00 2018-04-23 stsp got_privsep_send_error(&ibuf, err);
950 bff6ca00 2018-04-23 stsp status = 1;
954 bff6ca00 2018-04-23 stsp imsg_clear(&ibuf);
955 bff6ca00 2018-04-23 stsp close(imsg_fds[1]);
956 bff6ca00 2018-04-23 stsp _exit(status);
959 bff6ca00 2018-04-23 stsp static const struct got_error *
960 bff6ca00 2018-04-23 stsp read_commit_object_privsep(struct got_commit_object **commit,
961 bff6ca00 2018-04-23 stsp struct got_repository *repo, struct got_object *obj, int fd)
963 b419fc47 2018-04-26 stsp const struct got_error *err = NULL, *err_child = NULL;
964 bff6ca00 2018-04-23 stsp struct imsgbuf parent_ibuf;
965 bff6ca00 2018-04-23 stsp int imsg_fds[2];
968 bff6ca00 2018-04-23 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
969 bff6ca00 2018-04-23 stsp return got_error_from_errno();
971 bff6ca00 2018-04-23 stsp pid = fork();
972 bff6ca00 2018-04-23 stsp if (pid == -1)
973 bff6ca00 2018-04-23 stsp return got_error_from_errno();
974 bff6ca00 2018-04-23 stsp else if (pid == 0) {
975 bff6ca00 2018-04-23 stsp read_commit_object_privsep_child(obj, fd, imsg_fds);
976 e506bf32 2018-04-23 stsp /* not reached */
979 bff6ca00 2018-04-23 stsp close(imsg_fds[1]);
980 bff6ca00 2018-04-23 stsp imsg_init(&parent_ibuf, imsg_fds[0]);
981 068fd2bf 2018-04-24 stsp err = got_privsep_recv_commit(commit, &parent_ibuf);
982 bff6ca00 2018-04-23 stsp imsg_clear(&parent_ibuf);
983 b419fc47 2018-04-26 stsp err_child = wait_for_child(pid);
984 bff6ca00 2018-04-23 stsp close(imsg_fds[0]);
985 b419fc47 2018-04-26 stsp return err ? err : err_child;
988 d1cda826 2017-11-06 stsp const struct got_error *
989 d1cda826 2017-11-06 stsp got_object_commit_open(struct got_commit_object **commit,
990 d1cda826 2017-11-06 stsp struct got_repository *repo, struct got_object *obj)
992 d1cda826 2017-11-06 stsp const struct got_error *err = NULL;
994 1943de01 2018-06-22 stsp *commit = got_repo_get_cached_commit(repo, &obj->id);
995 1943de01 2018-06-22 stsp if (*commit != NULL) {
996 1943de01 2018-06-22 stsp (*commit)->refcnt++;
997 1943de01 2018-06-22 stsp return NULL;
1000 d1cda826 2017-11-06 stsp if (obj->type != GOT_OBJ_TYPE_COMMIT)
1001 d1cda826 2017-11-06 stsp return got_error(GOT_ERR_OBJ_TYPE);
1003 ea35256b 2018-03-16 stsp if (obj->flags & GOT_OBJ_FLAG_PACKED) {
1004 ea35256b 2018-03-16 stsp uint8_t *buf;
1005 ea35256b 2018-03-16 stsp size_t len;
1006 ea35256b 2018-03-16 stsp err = got_packfile_extract_object_to_mem(&buf, &len, obj, repo);
1008 ea35256b 2018-03-16 stsp return err;
1009 b29656e2 2018-03-16 stsp obj->size = len;
1010 b29656e2 2018-03-16 stsp err = parse_commit_object(commit, buf, len);
1011 ea35256b 2018-03-16 stsp free(buf);
1014 d5003b79 2018-04-22 stsp err = open_loose_object(&fd, obj, repo);
1016 ea35256b 2018-03-16 stsp return err;
1017 bff6ca00 2018-04-23 stsp err = read_commit_object_privsep(commit, repo, obj, fd);
1018 bff6ca00 2018-04-23 stsp close(fd);
1021 1943de01 2018-06-22 stsp if (err == NULL) {
1022 1943de01 2018-06-22 stsp (*commit)->refcnt++;
1023 1943de01 2018-06-22 stsp err = got_repo_cache_commit(repo, &obj->id, *commit);
1026 d1cda826 2017-11-06 stsp return err;
1030 d1cda826 2017-11-06 stsp got_object_commit_close(struct got_commit_object *commit)
1032 79f35eb3 2018-06-11 stsp struct got_object_qid *qid;
1034 1943de01 2018-06-22 stsp if (commit->refcnt > 0) {
1035 1943de01 2018-06-22 stsp commit->refcnt--;
1036 cc538cdd 2018-06-22 stsp if (commit->refcnt > 0)
1040 d1cda826 2017-11-06 stsp while (!SIMPLEQ_EMPTY(&commit->parent_ids)) {
1041 79f35eb3 2018-06-11 stsp qid = SIMPLEQ_FIRST(&commit->parent_ids);
1042 d1cda826 2017-11-06 stsp SIMPLEQ_REMOVE_HEAD(&commit->parent_ids, entry);
1043 fa2f6902 2018-07-23 stsp got_object_qid_free(qid);
1046 59ece79d 2018-02-12 stsp free(commit->tree_id);
1047 d1cda826 2017-11-06 stsp free(commit->author);
1048 d1cda826 2017-11-06 stsp free(commit->committer);
1049 d1cda826 2017-11-06 stsp free(commit->logmsg);
1050 d1cda826 2017-11-06 stsp free(commit);
1053 0ffeb3c2 2017-11-26 stsp static const struct got_error *
1054 e033d803 2018-04-23 stsp read_tree_object(struct got_tree_object **tree, struct got_object *obj, FILE *f)
1056 0ffeb3c2 2017-11-26 stsp const struct got_error *err = NULL;
1057 0ffeb3c2 2017-11-26 stsp size_t len;
1058 eb651edf 2018-02-11 stsp uint8_t *p;
1060 eb651edf 2018-02-11 stsp if (obj->flags & GOT_OBJ_FLAG_PACKED)
1061 eb651edf 2018-02-11 stsp err = read_to_mem(&p, &len, f);
1063 eb651edf 2018-02-11 stsp err = got_inflate_to_mem(&p, &len, f);
1065 0ffeb3c2 2017-11-26 stsp return err;
1067 0ffeb3c2 2017-11-26 stsp if (len < obj->hdrlen + obj->size) {
1068 0ffeb3c2 2017-11-26 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
1069 0ffeb3c2 2017-11-26 stsp goto done;
1072 0ffeb3c2 2017-11-26 stsp /* Skip object header. */
1073 0ffeb3c2 2017-11-26 stsp len -= obj->hdrlen;
1074 e033d803 2018-04-23 stsp err = parse_tree_object(tree, p + obj->hdrlen, len);
1077 e033d803 2018-04-23 stsp return err;
1080 e033d803 2018-04-23 stsp static void
1081 e033d803 2018-04-23 stsp read_tree_object_privsep_child(struct got_object *obj, int obj_fd,
1082 e033d803 2018-04-23 stsp int imsg_fds[2])
1084 e033d803 2018-04-23 stsp const struct got_error *err = NULL;
1085 e033d803 2018-04-23 stsp struct got_tree_object *tree = NULL;
1086 e033d803 2018-04-23 stsp struct imsgbuf ibuf;
1087 e033d803 2018-04-23 stsp FILE *f = NULL;
1088 e033d803 2018-04-23 stsp int status = 0;
1090 be37c2e6 2018-04-24 stsp setproctitle("read tree object");
1091 e033d803 2018-04-23 stsp close(imsg_fds[0]);
1092 e033d803 2018-04-23 stsp imsg_init(&ibuf, imsg_fds[1]);
1094 e033d803 2018-04-23 stsp /* revoke access to most system calls */
1095 e033d803 2018-04-23 stsp if (pledge("stdio", NULL) == -1) {
1096 e033d803 2018-04-23 stsp err = got_error_from_errno();
1097 e033d803 2018-04-23 stsp goto done;
1100 e033d803 2018-04-23 stsp f = fdopen(obj_fd, "rb");
1101 e033d803 2018-04-23 stsp if (f == NULL) {
1102 e033d803 2018-04-23 stsp err = got_error_from_errno();
1103 e033d803 2018-04-23 stsp close(obj_fd);
1104 e033d803 2018-04-23 stsp goto done;
1107 e033d803 2018-04-23 stsp err = read_tree_object(&tree, obj, f);
1109 e033d803 2018-04-23 stsp goto done;
1111 068fd2bf 2018-04-24 stsp err = got_privsep_send_tree(&ibuf, tree);
1114 e033d803 2018-04-23 stsp got_object_tree_close(tree);
1115 e033d803 2018-04-23 stsp if (err) {
1116 e033d803 2018-04-23 stsp got_privsep_send_error(&ibuf, err);
1117 e033d803 2018-04-23 stsp status = 1;
1120 e033d803 2018-04-23 stsp fclose(f);
1121 e033d803 2018-04-23 stsp imsg_clear(&ibuf);
1122 e033d803 2018-04-23 stsp close(imsg_fds[1]);
1123 e033d803 2018-04-23 stsp _exit(status);
1126 e033d803 2018-04-23 stsp static const struct got_error *
1127 e033d803 2018-04-23 stsp read_tree_object_privsep(struct got_tree_object **tree, struct got_object *obj,
1130 b419fc47 2018-04-26 stsp const struct got_error *err = NULL, *err_child = NULL;
1131 e033d803 2018-04-23 stsp struct imsgbuf parent_ibuf;
1132 e033d803 2018-04-23 stsp int imsg_fds[2];
1133 e033d803 2018-04-23 stsp pid_t pid;
1135 e033d803 2018-04-23 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
1136 e033d803 2018-04-23 stsp return got_error_from_errno();
1138 e033d803 2018-04-23 stsp pid = fork();
1139 e033d803 2018-04-23 stsp if (pid == -1)
1140 e033d803 2018-04-23 stsp return got_error_from_errno();
1141 e033d803 2018-04-23 stsp else if (pid == 0) {
1142 e033d803 2018-04-23 stsp read_tree_object_privsep_child(obj, fd, imsg_fds);
1143 e033d803 2018-04-23 stsp /* not reached */
1146 e033d803 2018-04-23 stsp close(imsg_fds[1]);
1147 e033d803 2018-04-23 stsp imsg_init(&parent_ibuf, imsg_fds[0]);
1148 068fd2bf 2018-04-24 stsp err = got_privsep_recv_tree(tree, &parent_ibuf);
1149 e033d803 2018-04-23 stsp imsg_clear(&parent_ibuf);
1150 b419fc47 2018-04-26 stsp err_child = wait_for_child(pid);
1151 e033d803 2018-04-23 stsp close(imsg_fds[0]);
1152 b419fc47 2018-04-26 stsp return err ? err : err_child;
1155 0ffeb3c2 2017-11-26 stsp const struct got_error *
1156 0ffeb3c2 2017-11-26 stsp got_object_tree_open(struct got_tree_object **tree,
1157 0ffeb3c2 2017-11-26 stsp struct got_repository *repo, struct got_object *obj)
1159 0ffeb3c2 2017-11-26 stsp const struct got_error *err = NULL;
1161 f6be5c30 2018-06-22 stsp *tree = got_repo_get_cached_tree(repo, &obj->id);
1162 f6be5c30 2018-06-22 stsp if (*tree != NULL) {
1163 f6be5c30 2018-06-22 stsp (*tree)->refcnt++;
1164 f6be5c30 2018-06-22 stsp return NULL;
1167 0ffeb3c2 2017-11-26 stsp if (obj->type != GOT_OBJ_TYPE_TREE)
1168 0ffeb3c2 2017-11-26 stsp return got_error(GOT_ERR_OBJ_TYPE);
1170 e0ab43e7 2018-03-16 stsp if (obj->flags & GOT_OBJ_FLAG_PACKED) {
1171 e0ab43e7 2018-03-16 stsp uint8_t *buf;
1172 e0ab43e7 2018-03-16 stsp size_t len;
1173 e0ab43e7 2018-03-16 stsp err = got_packfile_extract_object_to_mem(&buf, &len, obj, repo);
1175 e0ab43e7 2018-03-16 stsp return err;
1176 b29656e2 2018-03-16 stsp obj->size = len;
1177 e033d803 2018-04-23 stsp err = parse_tree_object(tree, buf, len);
1178 e0ab43e7 2018-03-16 stsp free(buf);
1181 d5003b79 2018-04-22 stsp err = open_loose_object(&fd, obj, repo);
1183 e0ab43e7 2018-03-16 stsp return err;
1184 e033d803 2018-04-23 stsp err = read_tree_object_privsep(tree, obj, fd);
1185 d5003b79 2018-04-22 stsp close(fd);
1188 f6be5c30 2018-06-22 stsp if (err == NULL) {
1189 f6be5c30 2018-06-22 stsp (*tree)->refcnt++;
1190 f6be5c30 2018-06-22 stsp err = got_repo_cache_tree(repo, &obj->id, *tree);
1193 776d4d29 2018-06-17 stsp return err;
1196 776d4d29 2018-06-17 stsp const struct got_error *
1197 776d4d29 2018-06-17 stsp got_object_open_as_tree(struct got_tree_object **tree,
1198 776d4d29 2018-06-17 stsp struct got_repository *repo, struct got_object_id *id)
1200 776d4d29 2018-06-17 stsp const struct got_error *err;
1201 776d4d29 2018-06-17 stsp struct got_object *obj;
1203 835e0dbd 2018-06-21 stsp *tree = NULL;
1205 776d4d29 2018-06-17 stsp err = got_object_open(&obj, repo, id);
1207 776d4d29 2018-06-17 stsp return err;
1208 1cbc02b6 2018-06-21 stsp if (got_object_get_type(obj) != GOT_OBJ_TYPE_TREE) {
1209 776d4d29 2018-06-17 stsp err = got_error(GOT_ERR_OBJ_TYPE);
1210 776d4d29 2018-06-17 stsp goto done;
1213 776d4d29 2018-06-17 stsp err = got_object_tree_open(tree, repo, obj);
1215 776d4d29 2018-06-17 stsp got_object_close(obj);
1216 0ffeb3c2 2017-11-26 stsp return err;
1220 0ffeb3c2 2017-11-26 stsp got_object_tree_close(struct got_tree_object *tree)
1222 f715ca7f 2017-11-27 stsp struct got_tree_entry *te;
1224 f6be5c30 2018-06-22 stsp if (tree->refcnt > 0) {
1225 f6be5c30 2018-06-22 stsp tree->refcnt--;
1226 cc538cdd 2018-06-22 stsp if (tree->refcnt > 0)
1230 883f0469 2018-06-23 stsp while (!SIMPLEQ_EMPTY(&tree->entries.head)) {
1231 883f0469 2018-06-23 stsp te = SIMPLEQ_FIRST(&tree->entries.head);
1232 883f0469 2018-06-23 stsp SIMPLEQ_REMOVE_HEAD(&tree->entries.head, entry);
1233 f715ca7f 2017-11-27 stsp tree_entry_close(te);
1236 f715ca7f 2017-11-27 stsp free(tree);
1239 883f0469 2018-06-23 stsp const struct got_tree_entries *
1240 883f0469 2018-06-23 stsp got_object_tree_get_entries(struct got_tree_object *tree)
1242 883f0469 2018-06-23 stsp return &tree->entries;
1245 ff6b18f8 2018-04-24 stsp static const struct got_error *
1246 ff6b18f8 2018-04-24 stsp read_blob_object_privsep_child(int outfd, int infd, int imsg_fds[2])
1248 ff6b18f8 2018-04-24 stsp const struct got_error *err = NULL;
1249 ff6b18f8 2018-04-24 stsp struct imsgbuf ibuf;
1250 ff6b18f8 2018-04-24 stsp int status = 0;
1251 2967a784 2018-04-24 stsp size_t size;
1252 8b2180d4 2018-04-26 stsp FILE *infile = NULL;
1254 be37c2e6 2018-04-24 stsp setproctitle("read blob object");
1255 ff6b18f8 2018-04-24 stsp close(imsg_fds[0]);
1256 ff6b18f8 2018-04-24 stsp imsg_init(&ibuf, imsg_fds[1]);
1258 ff6b18f8 2018-04-24 stsp /* revoke access to most system calls */
1259 ff6b18f8 2018-04-24 stsp if (pledge("stdio", NULL) == -1) {
1260 ff6b18f8 2018-04-24 stsp err = got_error_from_errno();
1261 ff6b18f8 2018-04-24 stsp goto done;
1264 8b2180d4 2018-04-26 stsp infile = fdopen(infd, "rb");
1265 8b2180d4 2018-04-26 stsp if (infile == NULL) {
1266 8b2180d4 2018-04-26 stsp err = got_error_from_errno();
1267 8b2180d4 2018-04-26 stsp close(infd);
1268 8b2180d4 2018-04-26 stsp goto done;
1270 8b2180d4 2018-04-26 stsp err = got_inflate_to_fd(&size, infile, outfd);
1271 8b2180d4 2018-04-26 stsp fclose(infile);
1273 ff6b18f8 2018-04-24 stsp goto done;
1275 2967a784 2018-04-24 stsp err = got_privsep_send_blob(&ibuf, size);
1277 ff6b18f8 2018-04-24 stsp if (err) {
1278 ff6b18f8 2018-04-24 stsp got_privsep_send_error(&ibuf, err);
1279 ff6b18f8 2018-04-24 stsp status = 1;
1281 ff6b18f8 2018-04-24 stsp close(outfd);
1282 ff6b18f8 2018-04-24 stsp imsg_clear(&ibuf);
1283 ff6b18f8 2018-04-24 stsp close(imsg_fds[1]);
1284 ff6b18f8 2018-04-24 stsp _exit(status);
1287 ff6b18f8 2018-04-24 stsp static const struct got_error *
1288 2967a784 2018-04-24 stsp read_blob_object_privsep(size_t *size, int outfd, int infd)
1290 ff6b18f8 2018-04-24 stsp struct imsgbuf parent_ibuf;
1291 ff6b18f8 2018-04-24 stsp int imsg_fds[2];
1292 b419fc47 2018-04-26 stsp const struct got_error *err = NULL, *err_child = NULL;
1293 ff6b18f8 2018-04-24 stsp pid_t pid;
1295 ff6b18f8 2018-04-24 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1)
1296 ff6b18f8 2018-04-24 stsp return got_error_from_errno();
1298 ff6b18f8 2018-04-24 stsp pid = fork();
1299 ff6b18f8 2018-04-24 stsp if (pid == -1)
1300 ff6b18f8 2018-04-24 stsp return got_error_from_errno();
1301 ff6b18f8 2018-04-24 stsp else if (pid == 0) {
1302 ff6b18f8 2018-04-24 stsp read_blob_object_privsep_child(outfd, infd, imsg_fds);
1303 ff6b18f8 2018-04-24 stsp /* not reached */
1306 ff6b18f8 2018-04-24 stsp close(imsg_fds[1]);
1307 ff6b18f8 2018-04-24 stsp imsg_init(&parent_ibuf, imsg_fds[0]);
1308 2967a784 2018-04-24 stsp err = got_privsep_recv_blob(size, &parent_ibuf);
1309 ff6b18f8 2018-04-24 stsp imsg_clear(&parent_ibuf);
1310 b419fc47 2018-04-26 stsp err_child = wait_for_child(pid);
1311 ff6b18f8 2018-04-24 stsp close(imsg_fds[0]);
1312 ff6b18f8 2018-04-24 stsp if (lseek(outfd, SEEK_SET, 0) == -1)
1313 ff6b18f8 2018-04-24 stsp err = got_error_from_errno();
1314 b419fc47 2018-04-26 stsp return err ? err : err_child;
1317 68482ea3 2017-11-27 stsp const struct got_error *
1318 68482ea3 2017-11-27 stsp got_object_blob_open(struct got_blob_object **blob,
1319 68482ea3 2017-11-27 stsp struct got_repository *repo, struct got_object *obj, size_t blocksize)
1321 68482ea3 2017-11-27 stsp const struct got_error *err = NULL;
1323 68482ea3 2017-11-27 stsp if (obj->type != GOT_OBJ_TYPE_BLOB)
1324 68482ea3 2017-11-27 stsp return got_error(GOT_ERR_OBJ_TYPE);
1326 7d283eee 2017-11-29 stsp if (blocksize < obj->hdrlen)
1327 7d283eee 2017-11-29 stsp return got_error(GOT_ERR_NO_SPACE);
1329 68482ea3 2017-11-27 stsp *blob = calloc(1, sizeof(**blob));
1330 4558fcd4 2018-01-14 stsp if (*blob == NULL)
1331 0a585a0d 2018-03-17 stsp return got_error_from_errno();
1333 062ebb78 2018-07-12 stsp (*blob)->read_buf = malloc(blocksize);
1334 15c8b0e6 2018-04-24 stsp if ((*blob)->read_buf == NULL) {
1335 15c8b0e6 2018-04-24 stsp err = got_error_from_errno();
1336 c7254d79 2018-04-24 stsp goto done;
1338 eb651edf 2018-02-11 stsp if (obj->flags & GOT_OBJ_FLAG_PACKED) {
1339 eb651edf 2018-02-11 stsp err = got_packfile_extract_object(&((*blob)->f), obj, repo);
1341 c7254d79 2018-04-24 stsp goto done;
1343 3aca5731 2018-04-24 stsp int infd, outfd;
1344 2967a784 2018-04-24 stsp size_t size;
1345 2967a784 2018-04-24 stsp struct stat sb;
1347 3aca5731 2018-04-24 stsp err = open_loose_object(&infd, obj, repo);
1349 c7254d79 2018-04-24 stsp goto done;
1352 3aca5731 2018-04-24 stsp outfd = got_opentempfd();
1353 3aca5731 2018-04-24 stsp if (outfd == -1) {
1354 3aca5731 2018-04-24 stsp err = got_error_from_errno();
1355 3aca5731 2018-04-24 stsp close(infd);
1356 3aca5731 2018-04-24 stsp goto done;
1359 2967a784 2018-04-24 stsp err = read_blob_object_privsep(&size, outfd, infd);
1360 3aca5731 2018-04-24 stsp close(infd);
1362 c7254d79 2018-04-24 stsp goto done;
1364 2967a784 2018-04-24 stsp if (size != obj->hdrlen + obj->size) {
1365 1a6b3ab7 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1366 2967a784 2018-04-24 stsp close(outfd);
1367 2967a784 2018-04-24 stsp goto done;
1370 2967a784 2018-04-24 stsp if (fstat(outfd, &sb) == -1) {
1371 2967a784 2018-04-24 stsp err = got_error_from_errno();
1372 2967a784 2018-04-24 stsp close(outfd);
1373 2967a784 2018-04-24 stsp goto done;
1376 2967a784 2018-04-24 stsp if (sb.st_size != size) {
1377 2967a784 2018-04-24 stsp err = got_error(GOT_ERR_PRIVSEP_LEN);
1378 2967a784 2018-04-24 stsp close(outfd);
1379 2967a784 2018-04-24 stsp goto done;
1382 3aca5731 2018-04-24 stsp (*blob)->f = fdopen(outfd, "rb");
1383 3aca5731 2018-04-24 stsp if ((*blob)->f == NULL) {
1384 3aca5731 2018-04-24 stsp err = got_error_from_errno();
1385 3aca5731 2018-04-24 stsp close(outfd);
1386 3aca5731 2018-04-24 stsp goto done;
1390 7d283eee 2017-11-29 stsp (*blob)->hdrlen = obj->hdrlen;
1391 eb651edf 2018-02-11 stsp (*blob)->blocksize = blocksize;
1392 f78b0693 2017-11-29 stsp memcpy(&(*blob)->id.sha1, obj->id.sha1, SHA1_DIGEST_LENGTH);
1395 c7254d79 2018-04-24 stsp if (err && *blob) {
1396 c7254d79 2018-04-24 stsp if ((*blob)->f)
1397 c7254d79 2018-04-24 stsp fclose((*blob)->f);
1398 c7254d79 2018-04-24 stsp free((*blob)->read_buf);
1399 c7254d79 2018-04-24 stsp free(*blob);
1400 c7254d79 2018-04-24 stsp *blob = NULL;
1402 a19581a2 2018-06-21 stsp return err;
1405 a19581a2 2018-06-21 stsp const struct got_error *
1406 a19581a2 2018-06-21 stsp got_object_open_as_blob(struct got_blob_object **blob,
1407 a19581a2 2018-06-21 stsp struct got_repository *repo, struct got_object_id *id,
1408 a19581a2 2018-06-21 stsp size_t blocksize)
1410 a19581a2 2018-06-21 stsp const struct got_error *err;
1411 a19581a2 2018-06-21 stsp struct got_object *obj;
1413 835e0dbd 2018-06-21 stsp *blob = NULL;
1415 a19581a2 2018-06-21 stsp err = got_object_open(&obj, repo, id);
1417 a19581a2 2018-06-21 stsp return err;
1418 a19581a2 2018-06-21 stsp if (got_object_get_type(obj) != GOT_OBJ_TYPE_BLOB) {
1419 a19581a2 2018-06-21 stsp err = got_error(GOT_ERR_OBJ_TYPE);
1420 a19581a2 2018-06-21 stsp goto done;
1423 a19581a2 2018-06-21 stsp err = got_object_blob_open(blob, repo, obj, blocksize);
1425 a19581a2 2018-06-21 stsp got_object_close(obj);
1426 68482ea3 2017-11-27 stsp return err;
1430 68482ea3 2017-11-27 stsp got_object_blob_close(struct got_blob_object *blob)
1432 15c8b0e6 2018-04-24 stsp free(blob->read_buf);
1433 68482ea3 2017-11-27 stsp fclose(blob->f);
1434 68482ea3 2017-11-27 stsp free(blob);
1438 f934cf2c 2018-02-12 stsp got_object_blob_id_str(struct got_blob_object *blob, char *buf, size_t size)
1440 f934cf2c 2018-02-12 stsp return got_sha1_digest_to_str(blob->id.sha1, buf, size);
1444 f934cf2c 2018-02-12 stsp got_object_blob_get_hdrlen(struct got_blob_object *blob)
1446 f934cf2c 2018-02-12 stsp return blob->hdrlen;
1449 f934cf2c 2018-02-12 stsp const uint8_t *
1450 f934cf2c 2018-02-12 stsp got_object_blob_get_read_buf(struct got_blob_object *blob)
1452 f934cf2c 2018-02-12 stsp return blob->read_buf;
1455 68482ea3 2017-11-27 stsp const struct got_error *
1456 eb651edf 2018-02-11 stsp got_object_blob_read_block(size_t *outlenp, struct got_blob_object *blob)
1460 eb651edf 2018-02-11 stsp n = fread(blob->read_buf, 1, blob->blocksize, blob->f);
1461 eb651edf 2018-02-11 stsp if (n == 0 && ferror(blob->f))
1462 eb651edf 2018-02-11 stsp return got_ferror(blob->f, GOT_ERR_IO);
1463 eb651edf 2018-02-11 stsp *outlenp = n;
1464 35e9ba5d 2018-06-21 stsp return NULL;
1467 35e9ba5d 2018-06-21 stsp const struct got_error *
1468 84451b3e 2018-07-10 stsp got_object_blob_dump_to_file(size_t *total_len, size_t *nlines,
1469 84451b3e 2018-07-10 stsp FILE *outfile, struct got_blob_object *blob)
1471 35e9ba5d 2018-06-21 stsp const struct got_error *err = NULL;
1472 35e9ba5d 2018-06-21 stsp size_t len, hdrlen;
1473 84451b3e 2018-07-10 stsp const uint8_t *buf;
1476 84451b3e 2018-07-10 stsp if (total_len)
1477 84451b3e 2018-07-10 stsp *total_len = 0;
1478 84451b3e 2018-07-10 stsp if (nlines)
1479 84451b3e 2018-07-10 stsp *nlines = 0;
1481 35e9ba5d 2018-06-21 stsp hdrlen = got_object_blob_get_hdrlen(blob);
1483 35e9ba5d 2018-06-21 stsp err = got_object_blob_read_block(&len, blob);
1485 35e9ba5d 2018-06-21 stsp return err;
1486 35e9ba5d 2018-06-21 stsp if (len == 0)
1488 84451b3e 2018-07-10 stsp if (total_len)
1489 84451b3e 2018-07-10 stsp *total_len += len;
1490 84451b3e 2018-07-10 stsp buf = got_object_blob_get_read_buf(blob);
1491 84451b3e 2018-07-10 stsp if (nlines) {
1492 84451b3e 2018-07-10 stsp for (i = 0; i < len; i++) {
1493 84451b3e 2018-07-10 stsp if (buf[i] == '\n')
1494 84451b3e 2018-07-10 stsp (*nlines)++;
1497 35e9ba5d 2018-06-21 stsp /* Skip blob object header first time around. */
1498 84451b3e 2018-07-10 stsp fwrite(buf + hdrlen, len - hdrlen, 1, outfile);
1499 35e9ba5d 2018-06-21 stsp hdrlen = 0;
1500 35e9ba5d 2018-06-21 stsp } while (len != 0);
1502 35e9ba5d 2018-06-21 stsp fflush(outfile);
1503 35e9ba5d 2018-06-21 stsp rewind(outfile);
1505 776d4d29 2018-06-17 stsp return NULL;
1508 776d4d29 2018-06-17 stsp static struct got_tree_entry *
1509 776d4d29 2018-06-17 stsp find_entry_by_name(struct got_tree_object *tree, const char *name)
1511 776d4d29 2018-06-17 stsp struct got_tree_entry *te;
1513 883f0469 2018-06-23 stsp SIMPLEQ_FOREACH(te, &tree->entries.head, entry) {
1514 776d4d29 2018-06-17 stsp if (strcmp(te->name, name) == 0)
1515 776d4d29 2018-06-17 stsp return te;
1517 eb651edf 2018-02-11 stsp return NULL;
1520 776d4d29 2018-06-17 stsp const struct got_error *
1521 776d4d29 2018-06-17 stsp got_object_open_by_path(struct got_object **obj, struct got_repository *repo,
1522 776d4d29 2018-06-17 stsp struct got_object_id *commit_id, const char *path)
1524 776d4d29 2018-06-17 stsp const struct got_error *err = NULL;
1525 776d4d29 2018-06-17 stsp struct got_commit_object *commit = NULL;
1526 776d4d29 2018-06-17 stsp struct got_tree_object *tree = NULL;
1527 db37e2c0 2018-06-21 stsp struct got_tree_entry *te = NULL;
1528 197aa481 2018-06-21 stsp char *seg, *s, *s0 = NULL;
1529 67606321 2018-06-21 stsp size_t len = strlen(path);
1531 776d4d29 2018-06-17 stsp *obj = NULL;
1533 776d4d29 2018-06-17 stsp /* We are expecting an absolute in-repository path. */
1534 776d4d29 2018-06-17 stsp if (path[0] != '/')
1535 776d4d29 2018-06-17 stsp return got_error(GOT_ERR_NOT_ABSPATH);
1537 776d4d29 2018-06-17 stsp err = got_object_open_as_commit(&commit, repo, commit_id);
1539 776d4d29 2018-06-17 stsp goto done;
1541 776d4d29 2018-06-17 stsp /* Handle opening of root of commit's tree. */
1542 776d4d29 2018-06-17 stsp if (path[1] == '\0') {
1543 776d4d29 2018-06-17 stsp err = got_object_open(obj, repo, commit->tree_id);
1544 ca008b32 2018-07-22 stsp goto done;
1547 776d4d29 2018-06-17 stsp err = got_object_open_as_tree(&tree, repo, commit->tree_id);
1549 776d4d29 2018-06-17 stsp goto done;
1551 197aa481 2018-06-21 stsp s0 = strdup(path);
1552 197aa481 2018-06-21 stsp if (s0 == NULL) {
1553 776d4d29 2018-06-17 stsp err = got_error_from_errno();
1554 776d4d29 2018-06-17 stsp goto done;
1556 67606321 2018-06-21 stsp err = got_canonpath(path, s0, len + 1);
1558 776d4d29 2018-06-17 stsp goto done;
1561 776d4d29 2018-06-17 stsp s++; /* skip leading '/' */
1564 67606321 2018-06-21 stsp while (len > 0) {
1565 776d4d29 2018-06-17 stsp struct got_tree_object *next_tree;
1567 776d4d29 2018-06-17 stsp if (*s != '/') {
1574 776d4d29 2018-06-17 stsp /* end of path segment */
1575 776d4d29 2018-06-17 stsp *s = '\0';
1577 db37e2c0 2018-06-21 stsp te = find_entry_by_name(tree, seg);
1578 db37e2c0 2018-06-21 stsp if (te == NULL) {
1579 776d4d29 2018-06-17 stsp err = got_error(GOT_ERR_NO_OBJ);
1580 776d4d29 2018-06-17 stsp goto done;
1583 67606321 2018-06-21 stsp if (len == 0)
1586 776d4d29 2018-06-17 stsp seg = s + 1;
1590 776d4d29 2018-06-17 stsp err = got_object_open_as_tree(&next_tree, repo,
1592 db37e2c0 2018-06-21 stsp te = NULL;
1594 776d4d29 2018-06-17 stsp goto done;
1595 776d4d29 2018-06-17 stsp got_object_tree_close(tree);
1596 776d4d29 2018-06-17 stsp tree = next_tree;
1601 db37e2c0 2018-06-21 stsp err = got_object_open(obj, repo, te->id);
1603 776d4d29 2018-06-17 stsp err = got_error(GOT_ERR_NO_OBJ);
1606 776d4d29 2018-06-17 stsp if (commit)
1607 776d4d29 2018-06-17 stsp got_object_commit_close(commit);
1609 776d4d29 2018-06-17 stsp got_object_tree_close(tree);
1610 776d4d29 2018-06-17 stsp return err;