2 a440fac0 2018-09-06 stsp * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
4 a440fac0 2018-09-06 stsp * Permission to use, copy, modify, and distribute this software for any
5 a440fac0 2018-09-06 stsp * purpose with or without fee is hereby granted, provided that the above
6 a440fac0 2018-09-06 stsp * copyright notice and this permission notice appear in all copies.
8 a440fac0 2018-09-06 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 a440fac0 2018-09-06 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 a440fac0 2018-09-06 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 a440fac0 2018-09-06 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 a440fac0 2018-09-06 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 a440fac0 2018-09-06 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 a440fac0 2018-09-06 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 a440fac0 2018-09-06 stsp #include <sys/types.h>
18 a440fac0 2018-09-06 stsp #include <sys/stat.h>
19 a440fac0 2018-09-06 stsp #include <sys/queue.h>
20 a440fac0 2018-09-06 stsp #include <sys/uio.h>
21 a440fac0 2018-09-06 stsp #include <sys/socket.h>
22 876c234b 2018-09-10 stsp #include <sys/syslimits.h>
23 a440fac0 2018-09-06 stsp #include <sys/wait.h>
25 a440fac0 2018-09-06 stsp #include <errno.h>
26 a440fac0 2018-09-06 stsp #include <stdio.h>
27 a440fac0 2018-09-06 stsp #include <stdlib.h>
28 a440fac0 2018-09-06 stsp #include <string.h>
29 a440fac0 2018-09-06 stsp #include <stdint.h>
30 a440fac0 2018-09-06 stsp #include <sha1.h>
31 a440fac0 2018-09-06 stsp #include <zlib.h>
32 a440fac0 2018-09-06 stsp #include <ctype.h>
33 a440fac0 2018-09-06 stsp #include <limits.h>
34 a440fac0 2018-09-06 stsp #include <imsg.h>
35 a440fac0 2018-09-06 stsp #include <time.h>
36 ad242220 2018-09-08 stsp #include <unistd.h>
38 a440fac0 2018-09-06 stsp #include "got_error.h"
39 a440fac0 2018-09-06 stsp #include "got_object.h"
40 a440fac0 2018-09-06 stsp #include "got_repository.h"
41 a440fac0 2018-09-06 stsp #include "got_opentemp.h"
43 a440fac0 2018-09-06 stsp #include "got_lib_sha1.h"
44 a440fac0 2018-09-06 stsp #include "got_lib_delta.h"
45 7762fe12 2018-11-05 stsp #include "got_lib_privsep.h"
46 7762fe12 2018-11-05 stsp #include "got_lib_pack.h"
47 41fa1437 2018-11-05 stsp #include "got_lib_inflate.h"
48 41fa1437 2018-11-05 stsp #include "got_lib_object.h"
49 6bef87be 2018-09-11 stsp #include "got_lib_object_cache.h"
50 ad242220 2018-09-08 stsp #include "got_lib_repository.h"
52 a440fac0 2018-09-06 stsp #ifndef nitems
53 a440fac0 2018-09-06 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
56 a440fac0 2018-09-06 stsp #define GOT_OBJ_TAG_COMMIT "commit"
57 a440fac0 2018-09-06 stsp #define GOT_OBJ_TAG_TREE "tree"
58 a440fac0 2018-09-06 stsp #define GOT_OBJ_TAG_BLOB "blob"
60 a440fac0 2018-09-06 stsp #define GOT_COMMIT_TAG_TREE "tree "
61 a440fac0 2018-09-06 stsp #define GOT_COMMIT_TAG_PARENT "parent "
62 a440fac0 2018-09-06 stsp #define GOT_COMMIT_TAG_AUTHOR "author "
63 a440fac0 2018-09-06 stsp #define GOT_COMMIT_TAG_COMMITTER "committer "
65 2ff12563 2018-09-15 stsp const struct got_error *
66 2ff12563 2018-09-15 stsp got_object_id_str(char **outbuf, struct got_object_id *id)
68 2ff12563 2018-09-15 stsp static const size_t len = SHA1_DIGEST_STRING_LENGTH;
70 2ff12563 2018-09-15 stsp *outbuf = malloc(len);
71 2ff12563 2018-09-15 stsp if (*outbuf == NULL)
72 2ff12563 2018-09-15 stsp return got_error_from_errno();
74 2ff12563 2018-09-15 stsp if (got_sha1_digest_to_str(id->sha1, *outbuf, len) == NULL) {
75 2ff12563 2018-09-15 stsp free(*outbuf);
76 2ff12563 2018-09-15 stsp *outbuf = NULL;
77 2ff12563 2018-09-15 stsp return got_error(GOT_ERR_BAD_OBJ_ID_STR);
80 2ff12563 2018-09-15 stsp return NULL;
84 03fa71c8 2018-09-06 stsp got_object_close(struct got_object *obj)
86 03fa71c8 2018-09-06 stsp if (obj->refcnt > 0) {
87 03fa71c8 2018-09-06 stsp obj->refcnt--;
88 03fa71c8 2018-09-06 stsp if (obj->refcnt > 0)
92 03fa71c8 2018-09-06 stsp if (obj->flags & GOT_OBJ_FLAG_DELTIFIED) {
93 03fa71c8 2018-09-06 stsp struct got_delta *delta;
94 03fa71c8 2018-09-06 stsp while (!SIMPLEQ_EMPTY(&obj->deltas.entries)) {
95 03fa71c8 2018-09-06 stsp delta = SIMPLEQ_FIRST(&obj->deltas.entries);
96 03fa71c8 2018-09-06 stsp SIMPLEQ_REMOVE_HEAD(&obj->deltas.entries, entry);
97 03fa71c8 2018-09-06 stsp got_delta_close(delta);
100 03fa71c8 2018-09-06 stsp if (obj->flags & GOT_OBJ_FLAG_PACKED)
101 03fa71c8 2018-09-06 stsp free(obj->path_packfile);
106 03fa71c8 2018-09-06 stsp got_object_qid_free(struct got_object_qid *qid)
108 03fa71c8 2018-09-06 stsp free(qid->id);
112 a440fac0 2018-09-06 stsp struct got_commit_object *
113 a440fac0 2018-09-06 stsp got_object_commit_alloc_partial(void)
115 a440fac0 2018-09-06 stsp struct got_commit_object *commit;
117 a440fac0 2018-09-06 stsp commit = calloc(1, sizeof(*commit));
118 a440fac0 2018-09-06 stsp if (commit == NULL)
119 a440fac0 2018-09-06 stsp return NULL;
120 a440fac0 2018-09-06 stsp commit->tree_id = calloc(1, sizeof(*commit->tree_id));
121 a440fac0 2018-09-06 stsp if (commit->tree_id == NULL) {
122 a440fac0 2018-09-06 stsp free(commit);
123 a440fac0 2018-09-06 stsp return NULL;
126 a440fac0 2018-09-06 stsp SIMPLEQ_INIT(&commit->parent_ids);
128 a440fac0 2018-09-06 stsp return commit;
131 a440fac0 2018-09-06 stsp const struct got_error *
132 a440fac0 2018-09-06 stsp got_object_commit_add_parent(struct got_commit_object *commit,
133 a440fac0 2018-09-06 stsp const char *id_str)
135 a440fac0 2018-09-06 stsp const struct got_error *err = NULL;
136 a440fac0 2018-09-06 stsp struct got_object_qid *qid;
138 41fa1437 2018-11-05 stsp qid = malloc(sizeof(*qid));
139 41fa1437 2018-11-05 stsp if (qid == NULL)
140 41fa1437 2018-11-05 stsp return got_error_from_errno();
142 41fa1437 2018-11-05 stsp qid->id = malloc(sizeof(*qid->id));
143 41fa1437 2018-11-05 stsp if (qid->id == NULL) {
144 41fa1437 2018-11-05 stsp err = got_error_from_errno();
145 41fa1437 2018-11-05 stsp got_object_qid_free(qid);
146 7762fe12 2018-11-05 stsp return err;
149 a440fac0 2018-09-06 stsp if (!got_parse_sha1_digest(qid->id->sha1, id_str)) {
150 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
151 a440fac0 2018-09-06 stsp free(qid->id);
153 a440fac0 2018-09-06 stsp return err;
156 a440fac0 2018-09-06 stsp SIMPLEQ_INSERT_TAIL(&commit->parent_ids, qid, entry);
157 a440fac0 2018-09-06 stsp commit->nparents++;
159 a440fac0 2018-09-06 stsp return NULL;
162 a440fac0 2018-09-06 stsp static const struct got_error *
163 a440fac0 2018-09-06 stsp parse_gmtoff(time_t *gmtoff, const char *tzstr)
165 a440fac0 2018-09-06 stsp int sign = 1;
166 a440fac0 2018-09-06 stsp const char *p = tzstr;
167 a440fac0 2018-09-06 stsp time_t h, m;
169 a440fac0 2018-09-06 stsp *gmtoff = 0;
171 a440fac0 2018-09-06 stsp if (*p == '-')
173 a440fac0 2018-09-06 stsp else if (*p != '+')
174 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
176 a440fac0 2018-09-06 stsp if (!isdigit(*p) && !isdigit(*(p + 1)))
177 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
178 a440fac0 2018-09-06 stsp h = (((*p - '0') * 10) + (*(p + 1) - '0'));
181 a440fac0 2018-09-06 stsp if (!isdigit(*p) && !isdigit(*(p + 1)))
182 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
183 a440fac0 2018-09-06 stsp m = ((*p - '0') * 10) + (*(p + 1) - '0');
185 a440fac0 2018-09-06 stsp *gmtoff = (h * 60 * 60 + m * 60) * sign;
186 a440fac0 2018-09-06 stsp return NULL;
189 a440fac0 2018-09-06 stsp static const struct got_error *
190 ccb26ccd 2018-11-05 stsp parse_commit_time(time_t *time, time_t *gmtoff, char *committer)
192 a440fac0 2018-09-06 stsp const struct got_error *err = NULL;
193 a440fac0 2018-09-06 stsp const char *errstr;
194 a440fac0 2018-09-06 stsp char *space, *tzstr;
196 a440fac0 2018-09-06 stsp /* Parse and strip off trailing timezone indicator string. */
197 a440fac0 2018-09-06 stsp space = strrchr(committer, ' ');
198 a440fac0 2018-09-06 stsp if (space == NULL)
199 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
200 a440fac0 2018-09-06 stsp tzstr = strdup(space + 1);
201 a440fac0 2018-09-06 stsp if (tzstr == NULL)
202 a440fac0 2018-09-06 stsp return got_error_from_errno();
203 ccb26ccd 2018-11-05 stsp err = parse_gmtoff(gmtoff, tzstr);
204 a440fac0 2018-09-06 stsp free(tzstr);
206 a440fac0 2018-09-06 stsp return err;
207 a440fac0 2018-09-06 stsp *space = '\0';
209 a440fac0 2018-09-06 stsp /* Timestamp is separated from committer name + email by space. */
210 a440fac0 2018-09-06 stsp space = strrchr(committer, ' ');
211 a440fac0 2018-09-06 stsp if (space == NULL)
212 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
214 a440fac0 2018-09-06 stsp /* Timestamp parsed here is expressed in comitter's local time. */
215 ccb26ccd 2018-11-05 stsp *time = strtonum(space + 1, 0, INT64_MAX, &errstr);
216 a440fac0 2018-09-06 stsp if (errstr)
217 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
219 a440fac0 2018-09-06 stsp /* Express the time stamp in UTC. */
220 ccb26ccd 2018-11-05 stsp *time -= *gmtoff;
222 a440fac0 2018-09-06 stsp /* Strip off parsed time information, leaving just author and email. */
223 a440fac0 2018-09-06 stsp *space = '\0';
225 a440fac0 2018-09-06 stsp return NULL;
229 03fa71c8 2018-09-06 stsp got_object_commit_close(struct got_commit_object *commit)
231 03fa71c8 2018-09-06 stsp struct got_object_qid *qid;
233 03fa71c8 2018-09-06 stsp if (commit->refcnt > 0) {
234 03fa71c8 2018-09-06 stsp commit->refcnt--;
235 03fa71c8 2018-09-06 stsp if (commit->refcnt > 0)
239 03fa71c8 2018-09-06 stsp while (!SIMPLEQ_EMPTY(&commit->parent_ids)) {
240 03fa71c8 2018-09-06 stsp qid = SIMPLEQ_FIRST(&commit->parent_ids);
241 03fa71c8 2018-09-06 stsp SIMPLEQ_REMOVE_HEAD(&commit->parent_ids, entry);
242 03fa71c8 2018-09-06 stsp got_object_qid_free(qid);
245 03fa71c8 2018-09-06 stsp free(commit->tree_id);
246 03fa71c8 2018-09-06 stsp free(commit->author);
247 03fa71c8 2018-09-06 stsp free(commit->committer);
248 03fa71c8 2018-09-06 stsp free(commit->logmsg);
249 03fa71c8 2018-09-06 stsp free(commit);
252 a440fac0 2018-09-06 stsp const struct got_error *
253 41fa1437 2018-11-05 stsp got_object_parse_commit(struct got_commit_object **commit, char *buf, size_t len)
255 a440fac0 2018-09-06 stsp const struct got_error *err = NULL;
256 a440fac0 2018-09-06 stsp char *s = buf;
257 a440fac0 2018-09-06 stsp size_t tlen;
258 a440fac0 2018-09-06 stsp ssize_t remain = (ssize_t)len;
260 a440fac0 2018-09-06 stsp *commit = got_object_commit_alloc_partial();
261 a440fac0 2018-09-06 stsp if (*commit == NULL)
262 a440fac0 2018-09-06 stsp return got_error_from_errno();
264 a440fac0 2018-09-06 stsp tlen = strlen(GOT_COMMIT_TAG_TREE);
265 a440fac0 2018-09-06 stsp if (strncmp(s, GOT_COMMIT_TAG_TREE, tlen) == 0) {
266 a440fac0 2018-09-06 stsp remain -= tlen;
267 a440fac0 2018-09-06 stsp if (remain < SHA1_DIGEST_STRING_LENGTH) {
268 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
272 a440fac0 2018-09-06 stsp if (!got_parse_sha1_digest((*commit)->tree_id->sha1, s)) {
273 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
276 a440fac0 2018-09-06 stsp remain -= SHA1_DIGEST_STRING_LENGTH;
277 a440fac0 2018-09-06 stsp s += SHA1_DIGEST_STRING_LENGTH;
279 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
283 a440fac0 2018-09-06 stsp tlen = strlen(GOT_COMMIT_TAG_PARENT);
284 a440fac0 2018-09-06 stsp while (strncmp(s, GOT_COMMIT_TAG_PARENT, tlen) == 0) {
285 a440fac0 2018-09-06 stsp remain -= tlen;
286 a440fac0 2018-09-06 stsp if (remain < SHA1_DIGEST_STRING_LENGTH) {
287 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
291 a440fac0 2018-09-06 stsp err = got_object_commit_add_parent(*commit, s);
295 a440fac0 2018-09-06 stsp remain -= SHA1_DIGEST_STRING_LENGTH;
296 a440fac0 2018-09-06 stsp s += SHA1_DIGEST_STRING_LENGTH;
299 a440fac0 2018-09-06 stsp tlen = strlen(GOT_COMMIT_TAG_AUTHOR);
300 a440fac0 2018-09-06 stsp if (strncmp(s, GOT_COMMIT_TAG_AUTHOR, tlen) == 0) {
302 a440fac0 2018-09-06 stsp size_t slen;
304 a440fac0 2018-09-06 stsp remain -= tlen;
305 a440fac0 2018-09-06 stsp if (remain <= 0) {
306 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
310 a440fac0 2018-09-06 stsp p = strchr(s, '\n');
311 a440fac0 2018-09-06 stsp if (p == NULL) {
312 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
316 a440fac0 2018-09-06 stsp slen = strlen(s);
317 ccb26ccd 2018-11-05 stsp err = parse_commit_time(&(*commit)->author_time,
318 ccb26ccd 2018-11-05 stsp &(*commit)->author_gmtoff, s);
321 a440fac0 2018-09-06 stsp (*commit)->author = strdup(s);
322 a440fac0 2018-09-06 stsp if ((*commit)->author == NULL) {
323 a440fac0 2018-09-06 stsp err = got_error_from_errno();
326 a440fac0 2018-09-06 stsp s += slen + 1;
327 a440fac0 2018-09-06 stsp remain -= slen + 1;
330 a440fac0 2018-09-06 stsp tlen = strlen(GOT_COMMIT_TAG_COMMITTER);
331 a440fac0 2018-09-06 stsp if (strncmp(s, GOT_COMMIT_TAG_COMMITTER, tlen) == 0) {
333 a440fac0 2018-09-06 stsp size_t slen;
335 a440fac0 2018-09-06 stsp remain -= tlen;
336 a440fac0 2018-09-06 stsp if (remain <= 0) {
337 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
341 a440fac0 2018-09-06 stsp p = strchr(s, '\n');
342 a440fac0 2018-09-06 stsp if (p == NULL) {
343 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
347 a440fac0 2018-09-06 stsp slen = strlen(s);
348 ccb26ccd 2018-11-05 stsp err = parse_commit_time(&(*commit)->committer_time,
349 ccb26ccd 2018-11-05 stsp &(*commit)->committer_gmtoff, s);
352 a440fac0 2018-09-06 stsp (*commit)->committer = strdup(s);
353 a440fac0 2018-09-06 stsp if ((*commit)->committer == NULL) {
354 a440fac0 2018-09-06 stsp err = got_error_from_errno();
357 a440fac0 2018-09-06 stsp s += slen + 1;
358 a440fac0 2018-09-06 stsp remain -= slen + 1;
361 a440fac0 2018-09-06 stsp (*commit)->logmsg = strndup(s, remain);
362 a440fac0 2018-09-06 stsp if ((*commit)->logmsg == NULL) {
363 a440fac0 2018-09-06 stsp err = got_error_from_errno();
368 a440fac0 2018-09-06 stsp got_object_commit_close(*commit);
369 a440fac0 2018-09-06 stsp *commit = NULL;
371 a440fac0 2018-09-06 stsp return err;
375 ad242220 2018-09-08 stsp got_object_tree_entry_close(struct got_tree_entry *te)
377 a440fac0 2018-09-06 stsp free(te->id);
378 a440fac0 2018-09-06 stsp free(te->name);
383 03fa71c8 2018-09-06 stsp got_object_tree_close(struct got_tree_object *tree)
385 03fa71c8 2018-09-06 stsp struct got_tree_entry *te;
387 03fa71c8 2018-09-06 stsp if (tree->refcnt > 0) {
388 03fa71c8 2018-09-06 stsp tree->refcnt--;
389 03fa71c8 2018-09-06 stsp if (tree->refcnt > 0)
393 03fa71c8 2018-09-06 stsp while (!SIMPLEQ_EMPTY(&tree->entries.head)) {
394 03fa71c8 2018-09-06 stsp te = SIMPLEQ_FIRST(&tree->entries.head);
395 03fa71c8 2018-09-06 stsp SIMPLEQ_REMOVE_HEAD(&tree->entries.head, entry);
396 ad242220 2018-09-08 stsp got_object_tree_entry_close(te);
399 03fa71c8 2018-09-06 stsp free(tree);
402 a440fac0 2018-09-06 stsp struct got_tree_entry *
403 a440fac0 2018-09-06 stsp got_alloc_tree_entry_partial(void)
405 a440fac0 2018-09-06 stsp struct got_tree_entry *te;
407 32ac459c 2018-11-05 stsp te = malloc(sizeof(*te));
408 a440fac0 2018-09-06 stsp if (te == NULL)
409 a440fac0 2018-09-06 stsp return NULL;
411 32ac459c 2018-11-05 stsp te->id = malloc(sizeof(*te->id));
412 a440fac0 2018-09-06 stsp if (te->id == NULL) {
419 a440fac0 2018-09-06 stsp static const struct got_error *
420 a440fac0 2018-09-06 stsp parse_tree_entry(struct got_tree_entry **te, size_t *elen, char *buf,
421 a440fac0 2018-09-06 stsp size_t maxlen)
423 a440fac0 2018-09-06 stsp char *p = buf, *space;
424 a440fac0 2018-09-06 stsp const struct got_error *err = NULL;
426 a440fac0 2018-09-06 stsp *te = got_alloc_tree_entry_partial();
427 a440fac0 2018-09-06 stsp if (*te == NULL)
428 a440fac0 2018-09-06 stsp return got_error_from_errno();
430 a440fac0 2018-09-06 stsp *elen = strlen(buf) + 1;
431 a440fac0 2018-09-06 stsp if (*elen > maxlen) {
433 a440fac0 2018-09-06 stsp *te = NULL;
434 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
437 a440fac0 2018-09-06 stsp space = strchr(buf, ' ');
438 a440fac0 2018-09-06 stsp if (space == NULL) {
439 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
441 a440fac0 2018-09-06 stsp *te = NULL;
442 a440fac0 2018-09-06 stsp return err;
444 a440fac0 2018-09-06 stsp while (*p != ' ') {
445 a440fac0 2018-09-06 stsp if (*p < '0' && *p > '7') {
446 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
449 a440fac0 2018-09-06 stsp (*te)->mode <<= 3;
450 a440fac0 2018-09-06 stsp (*te)->mode |= *p - '0';
454 a440fac0 2018-09-06 stsp (*te)->name = strdup(space + 1);
455 a440fac0 2018-09-06 stsp if (*elen > maxlen || maxlen - *elen < SHA1_DIGEST_LENGTH) {
456 a440fac0 2018-09-06 stsp err = got_error(GOT_ERR_BAD_OBJ_DATA);
459 a440fac0 2018-09-06 stsp buf += strlen(buf) + 1;
460 a440fac0 2018-09-06 stsp memcpy((*te)->id->sha1, buf, SHA1_DIGEST_LENGTH);
461 a440fac0 2018-09-06 stsp *elen += SHA1_DIGEST_LENGTH;
464 ad242220 2018-09-08 stsp got_object_tree_entry_close(*te);
465 a440fac0 2018-09-06 stsp *te = NULL;
467 a440fac0 2018-09-06 stsp return err;
470 a440fac0 2018-09-06 stsp const struct got_error *
471 a440fac0 2018-09-06 stsp got_object_parse_tree(struct got_tree_object **tree, uint8_t *buf, size_t len)
473 a440fac0 2018-09-06 stsp const struct got_error *err;
474 a440fac0 2018-09-06 stsp size_t remain = len;
476 a440fac0 2018-09-06 stsp *tree = calloc(1, sizeof(**tree));
477 a440fac0 2018-09-06 stsp if (*tree == NULL)
478 a440fac0 2018-09-06 stsp return got_error_from_errno();
480 a440fac0 2018-09-06 stsp SIMPLEQ_INIT(&(*tree)->entries.head);
482 a440fac0 2018-09-06 stsp while (remain > 0) {
483 a440fac0 2018-09-06 stsp struct got_tree_entry *te;
484 a440fac0 2018-09-06 stsp size_t elen;
486 a440fac0 2018-09-06 stsp err = parse_tree_entry(&te, &elen, buf, remain);
488 a440fac0 2018-09-06 stsp return err;
489 a440fac0 2018-09-06 stsp (*tree)->entries.nentries++;
490 a440fac0 2018-09-06 stsp SIMPLEQ_INSERT_TAIL(&(*tree)->entries.head, te, entry);
491 a440fac0 2018-09-06 stsp buf += elen;
492 a440fac0 2018-09-06 stsp remain -= elen;
495 a440fac0 2018-09-06 stsp if (remain != 0) {
496 a440fac0 2018-09-06 stsp got_object_tree_close(*tree);
497 a440fac0 2018-09-06 stsp return got_error(GOT_ERR_BAD_OBJ_DATA);
500 a440fac0 2018-09-06 stsp return NULL;
503 ad242220 2018-09-08 stsp const struct got_error *
504 ad242220 2018-09-08 stsp got_read_file_to_mem(uint8_t **outbuf, size_t *outlen, FILE *f)
506 a440fac0 2018-09-06 stsp const struct got_error *err = NULL;
507 a440fac0 2018-09-06 stsp static const size_t blocksize = 512;
508 a440fac0 2018-09-06 stsp size_t n, total, remain;
509 a440fac0 2018-09-06 stsp uint8_t *buf;
511 a440fac0 2018-09-06 stsp *outbuf = NULL;
512 a440fac0 2018-09-06 stsp *outlen = 0;
514 a440fac0 2018-09-06 stsp buf = malloc(blocksize);
515 a440fac0 2018-09-06 stsp if (buf == NULL)
516 a440fac0 2018-09-06 stsp return got_error_from_errno();
518 a440fac0 2018-09-06 stsp remain = blocksize;
520 a440fac0 2018-09-06 stsp while (1) {
521 a440fac0 2018-09-06 stsp if (remain == 0) {
522 a440fac0 2018-09-06 stsp uint8_t *newbuf;
523 a440fac0 2018-09-06 stsp newbuf = reallocarray(buf, 1, total + blocksize);
524 a440fac0 2018-09-06 stsp if (newbuf == NULL) {
525 a440fac0 2018-09-06 stsp err = got_error_from_errno();
528 a440fac0 2018-09-06 stsp buf = newbuf;
529 a440fac0 2018-09-06 stsp remain += blocksize;
531 a440fac0 2018-09-06 stsp n = fread(buf + total, 1, remain, f);
532 a440fac0 2018-09-06 stsp if (n == 0) {
533 a440fac0 2018-09-06 stsp if (ferror(f)) {
534 a440fac0 2018-09-06 stsp err = got_ferror(f, GOT_ERR_IO);
537 a440fac0 2018-09-06 stsp break; /* EOF */
539 a440fac0 2018-09-06 stsp remain -= n;
540 a440fac0 2018-09-06 stsp total += n;
544 a440fac0 2018-09-06 stsp if (err == NULL) {
545 a440fac0 2018-09-06 stsp *outbuf = buf;
546 a440fac0 2018-09-06 stsp *outlen = total;
549 ad242220 2018-09-08 stsp return err;