2 44edeea7 2019-04-11 stsp * Copyright (c) 2019 Stefan Sperling <stsp@openbsd.org>
4 44edeea7 2019-04-11 stsp * Permission to use, copy, modify, and distribute this software for any
5 44edeea7 2019-04-11 stsp * purpose with or without fee is hereby granted, provided that the above
6 44edeea7 2019-04-11 stsp * copyright notice and this permission notice appear in all copies.
8 44edeea7 2019-04-11 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 44edeea7 2019-04-11 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 44edeea7 2019-04-11 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 44edeea7 2019-04-11 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 44edeea7 2019-04-11 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 44edeea7 2019-04-11 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 44edeea7 2019-04-11 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 44edeea7 2019-04-11 stsp #include <sys/types.h>
18 44edeea7 2019-04-11 stsp #include <sys/stat.h>
19 44edeea7 2019-04-11 stsp #include <sys/queue.h>
21 51130c02 2019-04-13 stsp #include <errno.h>
22 44edeea7 2019-04-11 stsp #include <fcntl.h>
23 44edeea7 2019-04-11 stsp #include <stdio.h>
24 44edeea7 2019-04-11 stsp #include <stdlib.h>
25 44edeea7 2019-04-11 stsp #include <string.h>
26 44edeea7 2019-04-11 stsp #include <stdint.h>
27 44edeea7 2019-04-11 stsp #include <sha1.h>
28 a14a8cf6 2019-04-11 stsp #include <unistd.h>
29 44edeea7 2019-04-11 stsp #include <zlib.h>
31 44edeea7 2019-04-11 stsp #include "got_error.h"
32 44edeea7 2019-04-11 stsp #include "got_object.h"
33 44edeea7 2019-04-11 stsp #include "got_repository.h"
34 44edeea7 2019-04-11 stsp #include "got_opentemp.h"
36 44edeea7 2019-04-11 stsp #include "got_lib_sha1.h"
37 44edeea7 2019-04-11 stsp #include "got_lib_deflate.h"
38 44edeea7 2019-04-11 stsp #include "got_lib_delta.h"
39 44edeea7 2019-04-11 stsp #include "got_lib_object.h"
40 44edeea7 2019-04-11 stsp #include "got_lib_lockfile.h"
41 44edeea7 2019-04-11 stsp #include "got_lib_path.h"
43 44edeea7 2019-04-11 stsp #ifndef nitems
44 44edeea7 2019-04-11 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
47 ac1c5662 2019-04-13 stsp static const struct got_error *
48 76f564d5 2019-04-14 stsp create_object_file(struct got_object_id *id, FILE *content,
49 ac1c5662 2019-04-13 stsp struct got_repository *repo)
51 ac1c5662 2019-04-13 stsp const struct got_error *err = NULL, *unlock_err = NULL;
52 c6f826b4 2019-04-13 stsp char *objpath = NULL, *tmppath = NULL;
53 c6f826b4 2019-04-13 stsp FILE *tmpfile = NULL;
54 ac1c5662 2019-04-13 stsp struct got_lockfile *lf = NULL;
55 c6f826b4 2019-04-13 stsp size_t tmplen = 0;
57 ac1c5662 2019-04-13 stsp err = got_object_get_path(&objpath, id, repo);
61 c6f826b4 2019-04-13 stsp err = got_opentemp_named(&tmppath, &tmpfile, objpath);
63 ac1c5662 2019-04-13 stsp char *parent_path;
64 ac1c5662 2019-04-13 stsp if (!(err->code == GOT_ERR_ERRNO && errno == ENOENT))
66 ac1c5662 2019-04-13 stsp err = got_path_dirname(&parent_path, objpath);
69 ac1c5662 2019-04-13 stsp err = got_path_mkdir(parent_path);
70 ac1c5662 2019-04-13 stsp free(parent_path);
73 c6f826b4 2019-04-13 stsp err = got_opentemp_named(&tmppath, &tmpfile, objpath);
78 c6f826b4 2019-04-13 stsp err = got_deflate_to_file(&tmplen, content, tmpfile);
82 ac1c5662 2019-04-13 stsp err = got_lockfile_lock(&lf, objpath);
86 c6f826b4 2019-04-13 stsp if (rename(tmppath, objpath) != 0) {
87 ac1c5662 2019-04-13 stsp err = got_error_from_errno();
90 c6f826b4 2019-04-13 stsp free(tmppath);
91 c6f826b4 2019-04-13 stsp tmppath = NULL;
93 ac1c5662 2019-04-13 stsp if (chmod(objpath, GOT_DEFAULT_FILE_MODE) != 0) {
94 ac1c5662 2019-04-13 stsp err = got_error_from_errno();
98 ac1c5662 2019-04-13 stsp free(objpath);
99 c6f826b4 2019-04-13 stsp if (tmppath) {
100 c6f826b4 2019-04-13 stsp if (unlink(tmppath) != 0 && err == NULL)
101 ac1c5662 2019-04-13 stsp err = got_error_from_errno();
102 c6f826b4 2019-04-13 stsp free(tmppath);
104 c6f826b4 2019-04-13 stsp if (tmpfile && fclose(tmpfile) != 0 && err == NULL)
105 ac1c5662 2019-04-13 stsp err = got_error_from_errno();
107 ac1c5662 2019-04-13 stsp unlock_err = got_lockfile_unlock(lf);
108 ac1c5662 2019-04-13 stsp return err ? err : unlock_err;
111 44edeea7 2019-04-11 stsp const struct got_error *
112 f970685c 2019-04-13 stsp got_object_blob_create(struct got_object_id **id, const char *ondisk_path,
113 f970685c 2019-04-13 stsp struct got_repository *repo)
115 ac1c5662 2019-04-13 stsp const struct got_error *err = NULL;
116 ac1c5662 2019-04-13 stsp char *header = NULL;
117 ac1c5662 2019-04-13 stsp FILE *blobfile = NULL;
118 44edeea7 2019-04-11 stsp int fd = -1;
119 44edeea7 2019-04-11 stsp struct stat sb;
120 44edeea7 2019-04-11 stsp SHA1_CTX sha1_ctx;
121 ac1c5662 2019-04-13 stsp size_t headerlen = 0, n;
123 44edeea7 2019-04-11 stsp *id = NULL;
125 44edeea7 2019-04-11 stsp SHA1Init(&sha1_ctx);
127 44edeea7 2019-04-11 stsp fd = open(ondisk_path, O_RDONLY | O_NOFOLLOW);
128 44edeea7 2019-04-11 stsp if (fd == -1)
129 44edeea7 2019-04-11 stsp return got_error_from_errno();
131 44edeea7 2019-04-11 stsp if (fstat(fd, &sb) == -1) {
132 44edeea7 2019-04-11 stsp err = got_error_from_errno();
136 44edeea7 2019-04-11 stsp if (asprintf(&header, "%s %lld", GOT_OBJ_LABEL_BLOB,
137 44edeea7 2019-04-11 stsp sb.st_size) == -1) {
138 44edeea7 2019-04-11 stsp err = got_error_from_errno();
141 ffb286fd 2019-04-11 stsp headerlen = strlen(header) + 1;
142 ffb286fd 2019-04-11 stsp SHA1Update(&sha1_ctx, header, headerlen);
144 81984c6b 2019-04-11 stsp blobfile = got_opentemp();
145 81984c6b 2019-04-11 stsp if (blobfile == NULL) {
146 81984c6b 2019-04-11 stsp err = got_error_from_errno();
150 ac1c5662 2019-04-13 stsp n = fwrite(header, 1, headerlen, blobfile);
151 ac1c5662 2019-04-13 stsp if (n != headerlen) {
152 f16c2465 2019-04-11 stsp err = got_ferror(blobfile, GOT_ERR_IO);
155 44edeea7 2019-04-11 stsp while (1) {
156 44edeea7 2019-04-11 stsp char buf[8192];
157 a14a8cf6 2019-04-11 stsp ssize_t inlen;
159 a14a8cf6 2019-04-11 stsp inlen = read(fd, buf, sizeof(buf));
160 a14a8cf6 2019-04-11 stsp if (inlen == -1) {
161 a14a8cf6 2019-04-11 stsp err = got_error_from_errno();
164 a14a8cf6 2019-04-11 stsp if (inlen == 0)
165 a14a8cf6 2019-04-11 stsp break; /* EOF */
166 44edeea7 2019-04-11 stsp SHA1Update(&sha1_ctx, buf, inlen);
167 ac1c5662 2019-04-13 stsp n = fwrite(buf, 1, inlen, blobfile);
168 ac1c5662 2019-04-13 stsp if (n != inlen) {
169 44edeea7 2019-04-11 stsp err = got_ferror(blobfile, GOT_ERR_IO);
174 44edeea7 2019-04-11 stsp *id = malloc(sizeof(**id));
175 44edeea7 2019-04-11 stsp if (*id == NULL) {
176 44edeea7 2019-04-11 stsp err = got_error_from_errno();
179 4be2a0b4 2019-04-14 stsp SHA1Final((*id)->sha1, &sha1_ctx);
181 44edeea7 2019-04-11 stsp if (fflush(blobfile) != 0) {
182 44edeea7 2019-04-11 stsp err = got_error_from_errno();
185 44edeea7 2019-04-11 stsp rewind(blobfile);
187 76f564d5 2019-04-14 stsp err = create_object_file(*id, blobfile, repo);
189 44edeea7 2019-04-11 stsp free(header);
190 44edeea7 2019-04-11 stsp if (fd != -1 && close(fd) != 0 && err == NULL)
191 44edeea7 2019-04-11 stsp err = got_error_from_errno();
192 44edeea7 2019-04-11 stsp if (blobfile && fclose(blobfile) != 0 && err == NULL)
193 44edeea7 2019-04-11 stsp err = got_error_from_errno();
196 44edeea7 2019-04-11 stsp *id = NULL;
198 ac1c5662 2019-04-13 stsp return err;
201 f91abf81 2019-04-14 stsp static const struct got_error *
202 f91abf81 2019-04-14 stsp mode2str(char *buf, size_t len, mode_t mode)
205 f91abf81 2019-04-14 stsp ret = snprintf(buf, len, "%o ", mode);
206 f91abf81 2019-04-14 stsp if (ret == -1 || ret >= len)
207 f91abf81 2019-04-14 stsp return got_error(GOT_ERR_NO_SPACE);
208 f91abf81 2019-04-14 stsp return NULL;
211 f91abf81 2019-04-14 stsp const struct got_error *
212 f91abf81 2019-04-14 stsp got_object_tree_create(struct got_object_id **id,
213 f91abf81 2019-04-14 stsp struct got_tree_entries *entries, struct got_repository *repo)
215 f91abf81 2019-04-14 stsp const struct got_error *err = NULL;
216 f91abf81 2019-04-14 stsp char modebuf[sizeof("100644 ")];
217 f91abf81 2019-04-14 stsp SHA1_CTX sha1_ctx;
218 f91abf81 2019-04-14 stsp char *header = NULL;
219 f91abf81 2019-04-14 stsp size_t headerlen, len = 0, n;
220 f91abf81 2019-04-14 stsp FILE *treefile = NULL;
221 f91abf81 2019-04-14 stsp struct got_tree_entry *te;
223 f91abf81 2019-04-14 stsp *id = NULL;
225 51c32763 2019-05-09 stsp SHA1Init(&sha1_ctx);
227 f91abf81 2019-04-14 stsp SIMPLEQ_FOREACH(te, &entries->head, entry) {
228 f91abf81 2019-04-14 stsp err = mode2str(modebuf, sizeof(modebuf), te->mode);
230 f91abf81 2019-04-14 stsp return err;
231 f91abf81 2019-04-14 stsp len += strlen(modebuf) + strlen(te->name) + 1 +
232 f91abf81 2019-04-14 stsp SHA1_DIGEST_LENGTH;
235 f91abf81 2019-04-14 stsp if (asprintf(&header, "%s %zd", GOT_OBJ_LABEL_TREE, len) == -1) {
236 f91abf81 2019-04-14 stsp err = got_error_from_errno();
239 f91abf81 2019-04-14 stsp headerlen = strlen(header) + 1;
240 f91abf81 2019-04-14 stsp SHA1Update(&sha1_ctx, header, headerlen);
242 f91abf81 2019-04-14 stsp treefile = got_opentemp();
243 f91abf81 2019-04-14 stsp if (treefile == NULL) {
244 f91abf81 2019-04-14 stsp err = got_error_from_errno();
248 f91abf81 2019-04-14 stsp n = fwrite(header, 1, headerlen, treefile);
249 f91abf81 2019-04-14 stsp if (n != headerlen) {
250 f91abf81 2019-04-14 stsp err = got_ferror(treefile, GOT_ERR_IO);
254 f91abf81 2019-04-14 stsp SIMPLEQ_FOREACH(te, &entries->head, entry) {
255 f91abf81 2019-04-14 stsp err = mode2str(modebuf, sizeof(modebuf), te->mode);
258 f91abf81 2019-04-14 stsp len = strlen(modebuf);
259 f91abf81 2019-04-14 stsp n = fwrite(modebuf, 1, len, treefile);
260 f91abf81 2019-04-14 stsp if (n != len) {
261 f91abf81 2019-04-14 stsp err = got_ferror(treefile, GOT_ERR_IO);
264 f91abf81 2019-04-14 stsp SHA1Update(&sha1_ctx, modebuf, len);
266 f91abf81 2019-04-14 stsp len = strlen(te->name) + 1; /* must include NUL */
267 f91abf81 2019-04-14 stsp n = fwrite(te->name, 1, len, treefile);
268 f91abf81 2019-04-14 stsp if (n != len) {
269 f91abf81 2019-04-14 stsp err = got_ferror(treefile, GOT_ERR_IO);
272 f91abf81 2019-04-14 stsp SHA1Update(&sha1_ctx, te->name, len);
274 f91abf81 2019-04-14 stsp len = SHA1_DIGEST_LENGTH;
275 f91abf81 2019-04-14 stsp n = fwrite(te->id->sha1, 1, len, treefile);
276 f91abf81 2019-04-14 stsp if (n != len) {
277 f91abf81 2019-04-14 stsp err = got_ferror(treefile, GOT_ERR_IO);
280 f91abf81 2019-04-14 stsp SHA1Update(&sha1_ctx, te->id->sha1, len);
283 f91abf81 2019-04-14 stsp *id = malloc(sizeof(**id));
284 f91abf81 2019-04-14 stsp if (*id == NULL) {
285 f91abf81 2019-04-14 stsp err = got_error_from_errno();
288 4be2a0b4 2019-04-14 stsp SHA1Final((*id)->sha1, &sha1_ctx);
290 f91abf81 2019-04-14 stsp if (fflush(treefile) != 0) {
291 f91abf81 2019-04-14 stsp err = got_error_from_errno();
294 f91abf81 2019-04-14 stsp rewind(treefile);
296 76f564d5 2019-04-14 stsp err = create_object_file(*id, treefile, repo);
298 f91abf81 2019-04-14 stsp free(header);
299 f91abf81 2019-04-14 stsp if (treefile && fclose(treefile) != 0 && err == NULL)
300 f91abf81 2019-04-14 stsp err = got_error_from_errno();
303 f91abf81 2019-04-14 stsp *id = NULL;
305 f91abf81 2019-04-14 stsp return err;