1 0a0a3048 2018-01-10 stsp /*
  2 0a0a3048 2018-01-10 stsp  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
  3 0a0a3048 2018-01-10 stsp  *
  4 0a0a3048 2018-01-10 stsp  * Permission to use, copy, modify, and distribute this software for any
  5 0a0a3048 2018-01-10 stsp  * purpose with or without fee is hereby granted, provided that the above
  6 0a0a3048 2018-01-10 stsp  * copyright notice and this permission notice appear in all copies.
  7 0a0a3048 2018-01-10 stsp  *
  8 0a0a3048 2018-01-10 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 0a0a3048 2018-01-10 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 0a0a3048 2018-01-10 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 0a0a3048 2018-01-10 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 0a0a3048 2018-01-10 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 0a0a3048 2018-01-10 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 0a0a3048 2018-01-10 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 0a0a3048 2018-01-10 stsp  */
 16 0a0a3048 2018-01-10 stsp 
 17 a1fd68d8 2018-01-12 stsp #include <sys/types.h>
 18 0a0a3048 2018-01-10 stsp #include <sys/stat.h>
 19 a1fd68d8 2018-01-12 stsp #include <sys/queue.h>
 20 0a0a3048 2018-01-10 stsp 
 21 a1fd68d8 2018-01-12 stsp #include <dirent.h>
 22 a1fd68d8 2018-01-12 stsp #include <errno.h>
 23 0a0a3048 2018-01-10 stsp #include <stdio.h>
 24 a1fd68d8 2018-01-12 stsp #include <stdint.h>
 25 0a0a3048 2018-01-10 stsp #include <stdlib.h>
 26 0a0a3048 2018-01-10 stsp #include <string.h>
 27 0a0a3048 2018-01-10 stsp #include <limits.h>
 28 0a0a3048 2018-01-10 stsp #include <sha1.h>
 29 0a0a3048 2018-01-10 stsp #include <endian.h>
 30 a1fd68d8 2018-01-12 stsp #include <zlib.h>
 31 0a0a3048 2018-01-10 stsp 
 32 0a0a3048 2018-01-10 stsp #include "got_error.h"
 33 a1fd68d8 2018-01-12 stsp #include "got_object.h"
 34 a1fd68d8 2018-01-12 stsp #include "got_repository.h"
 35 a1fd68d8 2018-01-12 stsp #include "got_sha1.h"
 36 0a0a3048 2018-01-10 stsp #include "pack.h"
 37 a1fd68d8 2018-01-12 stsp #include "path.h"
 38 efd2a263 2018-01-19 stsp #include "delta.h"
 39 0a0a3048 2018-01-10 stsp 
 40 a1fd68d8 2018-01-12 stsp #define GOT_PACK_PREFIX		"pack-"
 41 a1fd68d8 2018-01-12 stsp #define GOT_PACKFILE_SUFFIX	".pack"
 42 a1fd68d8 2018-01-12 stsp #define GOT_PACKIDX_SUFFIX		".idx"
 43 a1fd68d8 2018-01-12 stsp #define GOT_PACKFILE_NAMELEN	(strlen(GOT_PACK_PREFIX) + \
 44 a1fd68d8 2018-01-12 stsp 				SHA1_DIGEST_STRING_LENGTH - 1 + \
 45 a1fd68d8 2018-01-12 stsp 				strlen(GOT_PACKFILE_SUFFIX))
 46 a1fd68d8 2018-01-12 stsp #define GOT_PACKIDX_NAMELEN	(strlen(GOT_PACK_PREFIX) + \
 47 a1fd68d8 2018-01-12 stsp 				SHA1_DIGEST_STRING_LENGTH - 1 + \
 48 a1fd68d8 2018-01-12 stsp 				strlen(GOT_PACKIDX_SUFFIX))
 49 a1fd68d8 2018-01-12 stsp 
 50 a1fd68d8 2018-01-12 stsp #ifndef MIN
 51 a1fd68d8 2018-01-12 stsp #define	MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
 52 a1fd68d8 2018-01-12 stsp #endif
 53 a1fd68d8 2018-01-12 stsp 
 54 0a0a3048 2018-01-10 stsp static const struct got_error *
 55 0a0a3048 2018-01-10 stsp verify_fanout_table(uint32_t *fanout_table)
 56 0a0a3048 2018-01-10 stsp {
 57 0a0a3048 2018-01-10 stsp 	int i;
 58 0a0a3048 2018-01-10 stsp 
 59 0a0a3048 2018-01-10 stsp 	for (i = 0; i < 0xff - 1; i++) {
 60 a1fd68d8 2018-01-12 stsp 		if (be32toh(fanout_table[i]) > be32toh(fanout_table[i + 1]))
 61 0a0a3048 2018-01-10 stsp 			return got_error(GOT_ERR_BAD_PACKIDX);
 62 0a0a3048 2018-01-10 stsp 	}
 63 0a0a3048 2018-01-10 stsp 
 64 0a0a3048 2018-01-10 stsp 	return NULL;
 65 0a0a3048 2018-01-10 stsp }
 66 0a0a3048 2018-01-10 stsp 
 67 24541888 2018-01-10 stsp static const struct got_error *
 68 0a0a3048 2018-01-10 stsp get_packfile_size(size_t *size, const char *path_idx)
 69 0a0a3048 2018-01-10 stsp {
 70 0a0a3048 2018-01-10 stsp 	struct stat sb;
 71 0a0a3048 2018-01-10 stsp 	char *path_pack;
 72 0a0a3048 2018-01-10 stsp 	char base_path[PATH_MAX];
 73 0a0a3048 2018-01-10 stsp 	char *dot;
 74 0a0a3048 2018-01-10 stsp 
 75 0a0a3048 2018-01-10 stsp 	if (strlcpy(base_path, path_idx, PATH_MAX) > PATH_MAX)
 76 0a0a3048 2018-01-10 stsp 		return got_error(GOT_ERR_NO_SPACE);
 77 0a0a3048 2018-01-10 stsp 
 78 0a0a3048 2018-01-10 stsp 	dot = strrchr(base_path, '.');
 79 0a0a3048 2018-01-10 stsp 	if (dot == NULL)
 80 0a0a3048 2018-01-10 stsp 		return got_error(GOT_ERR_BAD_PATH);
 81 0a0a3048 2018-01-10 stsp 	*dot = '\0';
 82 0a0a3048 2018-01-10 stsp 	if (asprintf(&path_pack, "%s.pack", base_path) == -1)
 83 0a0a3048 2018-01-10 stsp 		return got_error(GOT_ERR_NO_MEM);
 84 0a0a3048 2018-01-10 stsp 
 85 0a0a3048 2018-01-10 stsp 	if (stat(path_pack, &sb) != 0) {
 86 0a0a3048 2018-01-10 stsp 		free(path_pack);
 87 8251fdbc 2018-01-12 stsp 		return got_error_from_errno();
 88 0a0a3048 2018-01-10 stsp 	}
 89 0a0a3048 2018-01-10 stsp 
 90 0a0a3048 2018-01-10 stsp 	free(path_pack);
 91 0a0a3048 2018-01-10 stsp 	*size = sb.st_size;
 92 0a0a3048 2018-01-10 stsp 	return 0;
 93 0a0a3048 2018-01-10 stsp }
 94 0a0a3048 2018-01-10 stsp 
 95 0a0a3048 2018-01-10 stsp const struct got_error *
 96 0a0a3048 2018-01-10 stsp got_packidx_open(struct got_packidx_v2_hdr **packidx, const char *path)
 97 0a0a3048 2018-01-10 stsp {
 98 0a0a3048 2018-01-10 stsp 	struct got_packidx_v2_hdr *p;
 99 0a0a3048 2018-01-10 stsp 	FILE *f;
100 0a0a3048 2018-01-10 stsp 	const struct got_error *err = NULL;
101 0a0a3048 2018-01-10 stsp 	size_t n, nobj, packfile_size;
102 0ebaf008 2018-01-10 stsp 	SHA1_CTX ctx;
103 0ebaf008 2018-01-10 stsp 	uint8_t sha1[SHA1_DIGEST_LENGTH];
104 0a0a3048 2018-01-10 stsp 
105 0ebaf008 2018-01-10 stsp 	SHA1Init(&ctx);
106 0ebaf008 2018-01-10 stsp 
107 0a0a3048 2018-01-10 stsp 	f = fopen(path, "rb");
108 0a0a3048 2018-01-10 stsp 	if (f == NULL)
109 0a0a3048 2018-01-10 stsp 		return got_error(GOT_ERR_BAD_PATH);
110 0a0a3048 2018-01-10 stsp 
111 0a0a3048 2018-01-10 stsp 	err = get_packfile_size(&packfile_size, path);
112 0a0a3048 2018-01-10 stsp 	if (err)
113 0a0a3048 2018-01-10 stsp 		return err;
114 0a0a3048 2018-01-10 stsp 
115 0a0a3048 2018-01-10 stsp 	p = calloc(1, sizeof(*p));
116 0a0a3048 2018-01-10 stsp 	if (p == NULL) {
117 0a0a3048 2018-01-10 stsp 		err = got_error(GOT_ERR_NO_MEM);
118 0a0a3048 2018-01-10 stsp 		goto done;
119 0a0a3048 2018-01-10 stsp 	}
120 0a0a3048 2018-01-10 stsp 
121 0a0a3048 2018-01-10 stsp 	n = fread(&p->magic, sizeof(p->magic), 1, f);
122 0a0a3048 2018-01-10 stsp 	if (n != 1) {
123 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
124 0a0a3048 2018-01-10 stsp 		goto done;
125 0a0a3048 2018-01-10 stsp 	}
126 0a0a3048 2018-01-10 stsp 
127 0a0a3048 2018-01-10 stsp 	if (betoh32(p->magic) != GOT_PACKIDX_V2_MAGIC) {
128 0a0a3048 2018-01-10 stsp 		err = got_error(GOT_ERR_BAD_PACKIDX);
129 0a0a3048 2018-01-10 stsp 		goto done;
130 0a0a3048 2018-01-10 stsp 	}
131 0a0a3048 2018-01-10 stsp 
132 0ebaf008 2018-01-10 stsp 	SHA1Update(&ctx, (uint8_t *)&p->magic, sizeof(p->magic));
133 0ebaf008 2018-01-10 stsp 
134 0a0a3048 2018-01-10 stsp 	n = fread(&p->version, sizeof(p->version), 1, f);
135 0a0a3048 2018-01-10 stsp 	if (n != 1) {
136 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
137 0a0a3048 2018-01-10 stsp 		goto done;
138 0a0a3048 2018-01-10 stsp 	}
139 0a0a3048 2018-01-10 stsp 
140 0a0a3048 2018-01-10 stsp 	if (betoh32(p->version) != GOT_PACKIDX_VERSION) {
141 0a0a3048 2018-01-10 stsp 		err = got_error(GOT_ERR_BAD_PACKIDX);
142 0a0a3048 2018-01-10 stsp 		goto done;
143 0a0a3048 2018-01-10 stsp 	}
144 0a0a3048 2018-01-10 stsp 
145 0ebaf008 2018-01-10 stsp 	SHA1Update(&ctx, (uint8_t *)&p->version, sizeof(p->version));
146 0ebaf008 2018-01-10 stsp 
147 0a0a3048 2018-01-10 stsp 	n = fread(&p->fanout_table, sizeof(p->fanout_table), 1, f);
148 0a0a3048 2018-01-10 stsp 	if (n != 1) {
149 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
150 0a0a3048 2018-01-10 stsp 		goto done;
151 0a0a3048 2018-01-10 stsp 	}
152 0a0a3048 2018-01-10 stsp 
153 0a0a3048 2018-01-10 stsp 	err = verify_fanout_table(p->fanout_table);
154 0a0a3048 2018-01-10 stsp 	if (err)
155 0a0a3048 2018-01-10 stsp 		goto done;
156 0a0a3048 2018-01-10 stsp 
157 0ebaf008 2018-01-10 stsp 	SHA1Update(&ctx, (uint8_t *)p->fanout_table, sizeof(p->fanout_table));
158 0ebaf008 2018-01-10 stsp 
159 0a0a3048 2018-01-10 stsp 	nobj = betoh32(p->fanout_table[0xff]);
160 0a0a3048 2018-01-10 stsp 
161 0a0a3048 2018-01-10 stsp 	p->sorted_ids = calloc(nobj, sizeof(*p->sorted_ids));
162 0a0a3048 2018-01-10 stsp 	if (p->sorted_ids == NULL) {
163 0a0a3048 2018-01-10 stsp 		err = got_error(GOT_ERR_NO_MEM);
164 0a0a3048 2018-01-10 stsp 		goto done;
165 0a0a3048 2018-01-10 stsp 	}
166 0a0a3048 2018-01-10 stsp 
167 0a0a3048 2018-01-10 stsp 	n = fread(p->sorted_ids, sizeof(*p->sorted_ids), nobj, f);
168 0a0a3048 2018-01-10 stsp 	if (n != nobj) {
169 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
170 0a0a3048 2018-01-10 stsp 		goto done;
171 0a0a3048 2018-01-10 stsp 	}
172 0a0a3048 2018-01-10 stsp 
173 0ebaf008 2018-01-10 stsp 	SHA1Update(&ctx, (uint8_t *)p->sorted_ids,
174 0ebaf008 2018-01-10 stsp 	    nobj * sizeof(*p->sorted_ids));
175 0ebaf008 2018-01-10 stsp 
176 a1fd68d8 2018-01-12 stsp 	p->crc32 = calloc(nobj, sizeof(*p->crc32));
177 a1fd68d8 2018-01-12 stsp 	if (p->crc32 == NULL) {
178 0a0a3048 2018-01-10 stsp 		err = got_error(GOT_ERR_NO_MEM);
179 0a0a3048 2018-01-10 stsp 		goto done;
180 0a0a3048 2018-01-10 stsp 	}
181 0a0a3048 2018-01-10 stsp 
182 a1fd68d8 2018-01-12 stsp 	n = fread(p->crc32, sizeof(*p->crc32), nobj, f);
183 0a0a3048 2018-01-10 stsp 	if (n != nobj) {
184 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
185 0a0a3048 2018-01-10 stsp 		goto done;
186 0a0a3048 2018-01-10 stsp 	}
187 0a0a3048 2018-01-10 stsp 
188 a1fd68d8 2018-01-12 stsp 	SHA1Update(&ctx, (uint8_t *)p->crc32, nobj * sizeof(*p->crc32));
189 0ebaf008 2018-01-10 stsp 
190 a1fd68d8 2018-01-12 stsp 	p->offsets = calloc(nobj, sizeof(*p->offsets));
191 a1fd68d8 2018-01-12 stsp 	if (p->offsets == NULL) {
192 0a0a3048 2018-01-10 stsp 		err = got_error(GOT_ERR_NO_MEM);
193 0a0a3048 2018-01-10 stsp 		goto done;
194 0a0a3048 2018-01-10 stsp 	}
195 0a0a3048 2018-01-10 stsp 
196 a1fd68d8 2018-01-12 stsp 	n = fread(p->offsets, sizeof(*p->offsets), nobj, f);
197 0a0a3048 2018-01-10 stsp 	if (n != nobj) {
198 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
199 0a0a3048 2018-01-10 stsp 		goto done;
200 0a0a3048 2018-01-10 stsp 	}
201 0a0a3048 2018-01-10 stsp 
202 a1fd68d8 2018-01-12 stsp 	SHA1Update(&ctx, (uint8_t *)p->offsets, nobj * sizeof(*p->offsets));
203 0ebaf008 2018-01-10 stsp 
204 0a0a3048 2018-01-10 stsp 	/* Large file offsets are contained only in files > 2GB. */
205 b0517dd0 2018-01-10 stsp 	if (packfile_size <= 0x80000000)
206 0a0a3048 2018-01-10 stsp 		goto checksum;
207 0a0a3048 2018-01-10 stsp 
208 0a0a3048 2018-01-10 stsp 	p->large_offsets = calloc(nobj, sizeof(*p->large_offsets));
209 0a0a3048 2018-01-10 stsp 	if (p->large_offsets == NULL) {
210 0a0a3048 2018-01-10 stsp 		err = got_error(GOT_ERR_NO_MEM);
211 0a0a3048 2018-01-10 stsp 		goto done;
212 0a0a3048 2018-01-10 stsp 	}
213 0a0a3048 2018-01-10 stsp 
214 0a0a3048 2018-01-10 stsp 	n = fread(p->large_offsets, sizeof(*p->large_offsets), nobj, f);
215 0a0a3048 2018-01-10 stsp 	if (n != nobj) {
216 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
217 0a0a3048 2018-01-10 stsp 		goto done;
218 0a0a3048 2018-01-10 stsp 	}
219 0a0a3048 2018-01-10 stsp 
220 0ebaf008 2018-01-10 stsp 	SHA1Update(&ctx, (uint8_t*)p->large_offsets,
221 0ebaf008 2018-01-10 stsp 	    nobj * sizeof(*p->large_offsets));
222 0ebaf008 2018-01-10 stsp 
223 0a0a3048 2018-01-10 stsp checksum:
224 0a0a3048 2018-01-10 stsp 	n = fread(&p->trailer, sizeof(p->trailer), 1, f);
225 0a0a3048 2018-01-10 stsp 	if (n != 1) {
226 8251fdbc 2018-01-12 stsp 		err = got_ferror(f, GOT_ERR_BAD_PACKIDX);
227 0a0a3048 2018-01-10 stsp 		goto done;
228 0a0a3048 2018-01-10 stsp 	}
229 0a0a3048 2018-01-10 stsp 
230 a1fd68d8 2018-01-12 stsp 	SHA1Update(&ctx, p->trailer.packfile_sha1, SHA1_DIGEST_LENGTH);
231 0ebaf008 2018-01-10 stsp 	SHA1Final(sha1, &ctx);
232 a1fd68d8 2018-01-12 stsp 	if (memcmp(p->trailer.packidx_sha1, sha1, SHA1_DIGEST_LENGTH) != 0)
233 0ebaf008 2018-01-10 stsp 		err = got_error(GOT_ERR_PACKIDX_CSUM);
234 0a0a3048 2018-01-10 stsp done:
235 0a0a3048 2018-01-10 stsp 	fclose(f);
236 0a0a3048 2018-01-10 stsp 	if (err)
237 0a0a3048 2018-01-10 stsp 		got_packidx_close(p);
238 0a0a3048 2018-01-10 stsp 	else
239 0a0a3048 2018-01-10 stsp 		*packidx = p;
240 0a0a3048 2018-01-10 stsp 	return err;
241 0a0a3048 2018-01-10 stsp }
242 0a0a3048 2018-01-10 stsp 
243 0a0a3048 2018-01-10 stsp void
244 0a0a3048 2018-01-10 stsp got_packidx_close(struct got_packidx_v2_hdr *packidx)
245 0a0a3048 2018-01-10 stsp {
246 0a0a3048 2018-01-10 stsp 	free(packidx->sorted_ids);
247 0a0a3048 2018-01-10 stsp 	free(packidx->offsets);
248 0a0a3048 2018-01-10 stsp 	free(packidx->crc32);
249 0a0a3048 2018-01-10 stsp 	free(packidx->large_offsets);
250 0a0a3048 2018-01-10 stsp 	free(packidx);
251 a1fd68d8 2018-01-12 stsp }
252 a1fd68d8 2018-01-12 stsp 
253 a1fd68d8 2018-01-12 stsp static int
254 a1fd68d8 2018-01-12 stsp is_packidx_filename(const char *name, size_t len)
255 a1fd68d8 2018-01-12 stsp {
256 a1fd68d8 2018-01-12 stsp 	if (len != GOT_PACKIDX_NAMELEN)
257 a1fd68d8 2018-01-12 stsp 		return 0;
258 a1fd68d8 2018-01-12 stsp 
259 a1fd68d8 2018-01-12 stsp 	if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
260 a1fd68d8 2018-01-12 stsp 		return 0;
261 a1fd68d8 2018-01-12 stsp 
262 a1fd68d8 2018-01-12 stsp 	if (strcmp(name + strlen(GOT_PACK_PREFIX) +
263 a1fd68d8 2018-01-12 stsp 	    SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
264 a1fd68d8 2018-01-12 stsp 		return 0;
265 a1fd68d8 2018-01-12 stsp 
266 a1fd68d8 2018-01-12 stsp 	return 1;
267 a1fd68d8 2018-01-12 stsp }
268 a1fd68d8 2018-01-12 stsp 
269 a1fd68d8 2018-01-12 stsp static off_t
270 a1fd68d8 2018-01-12 stsp get_object_offset(struct got_packidx_v2_hdr *packidx, int idx)
271 a1fd68d8 2018-01-12 stsp {
272 a1fd68d8 2018-01-12 stsp 	uint32_t totobj = betoh32(packidx->fanout_table[0xff]);
273 a1fd68d8 2018-01-12 stsp 	uint32_t offset = betoh32(packidx->offsets[idx]);
274 a1fd68d8 2018-01-12 stsp 	if (offset & GOT_PACKIDX_OFFSET_VAL_IS_LARGE_IDX) {
275 a1fd68d8 2018-01-12 stsp 		uint64_t loffset;
276 a1fd68d8 2018-01-12 stsp 		idx = offset & GOT_PACKIDX_OFFSET_VAL_MASK;
277 a1fd68d8 2018-01-12 stsp 		if (idx < 0 || idx > totobj || packidx->large_offsets == NULL)
278 a1fd68d8 2018-01-12 stsp 			return -1;
279 a1fd68d8 2018-01-12 stsp 		loffset = betoh64(packidx->large_offsets[idx]);
280 a1fd68d8 2018-01-12 stsp 		return (loffset > INT64_MAX ? -1 : (off_t)loffset);
281 a1fd68d8 2018-01-12 stsp 	}
282 a1fd68d8 2018-01-12 stsp 	return (off_t)(offset & GOT_PACKIDX_OFFSET_VAL_MASK);
283 a1fd68d8 2018-01-12 stsp }
284 a1fd68d8 2018-01-12 stsp 
285 a1fd68d8 2018-01-12 stsp static int
286 a1fd68d8 2018-01-12 stsp get_object_idx(struct got_packidx_v2_hdr *packidx, struct got_object_id *id)
287 a1fd68d8 2018-01-12 stsp {
288 a1fd68d8 2018-01-12 stsp 	u_int8_t id0 = id->sha1[0];
289 a1fd68d8 2018-01-12 stsp 	uint32_t totobj = betoh32(packidx->fanout_table[0xff]);
290 a1fd68d8 2018-01-12 stsp 	int i = 0;
291 a1fd68d8 2018-01-12 stsp 
292 a1fd68d8 2018-01-12 stsp 	if (id0 > 0)
293 a1fd68d8 2018-01-12 stsp 		i = betoh32(packidx->fanout_table[id0 - 1]);
294 a1fd68d8 2018-01-12 stsp 
295 a1fd68d8 2018-01-12 stsp 	while (i < totobj) {
296 6c00b545 2018-01-17 stsp 		struct got_object_id *oid = &packidx->sorted_ids[i];
297 a1fd68d8 2018-01-12 stsp 		uint32_t offset;
298 2b2ca9f0 2018-01-13 stsp 		int cmp = got_object_id_cmp(id, oid);
299 a1fd68d8 2018-01-12 stsp 
300 6c00b545 2018-01-17 stsp 		if (cmp == 0)
301 6c00b545 2018-01-17 stsp 			return i;
302 6c00b545 2018-01-17 stsp 		else if (cmp > 0)
303 a1fd68d8 2018-01-12 stsp 			break;
304 6c00b545 2018-01-17 stsp 		i++;
305 a1fd68d8 2018-01-12 stsp 	}
306 a1fd68d8 2018-01-12 stsp 
307 a1fd68d8 2018-01-12 stsp 	return -1;
308 a1fd68d8 2018-01-12 stsp }
309 a1fd68d8 2018-01-12 stsp 
310 a1fd68d8 2018-01-12 stsp const struct got_error *
311 a1fd68d8 2018-01-12 stsp read_packfile_hdr(FILE *f, struct got_packidx_v2_hdr *packidx)
312 a1fd68d8 2018-01-12 stsp {
313 a1fd68d8 2018-01-12 stsp 	const struct got_error *err = NULL;
314 a1fd68d8 2018-01-12 stsp 	uint32_t totobj = betoh32(packidx->fanout_table[0xff]);
315 a1fd68d8 2018-01-12 stsp 	struct got_packfile_hdr hdr;
316 a1fd68d8 2018-01-12 stsp 	size_t n;
317 a1fd68d8 2018-01-12 stsp 
318 a1fd68d8 2018-01-12 stsp 	n = fread(&hdr, sizeof(hdr), 1, f);
319 a1fd68d8 2018-01-12 stsp 	if (n != 1)
320 8251fdbc 2018-01-12 stsp 		return got_ferror(f, GOT_ERR_BAD_PACKIDX);
321 a1fd68d8 2018-01-12 stsp 
322 a1fd68d8 2018-01-12 stsp 	if (betoh32(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
323 a1fd68d8 2018-01-12 stsp 	    betoh32(hdr.version) != GOT_PACKFILE_VERSION ||
324 a1fd68d8 2018-01-12 stsp 	    betoh32(hdr.nobjects) != totobj)
325 a1fd68d8 2018-01-12 stsp 		err = got_error(GOT_ERR_BAD_PACKFILE);
326 a1fd68d8 2018-01-12 stsp 
327 a1fd68d8 2018-01-12 stsp 	return err;
328 a487c1d0 2018-01-14 stsp }
329 a487c1d0 2018-01-14 stsp 
330 a487c1d0 2018-01-14 stsp static const struct got_error *
331 3ee5fc21 2018-01-17 stsp decode_type_and_size(uint8_t *type, uint64_t *size, size_t *len, FILE *packfile)
332 a487c1d0 2018-01-14 stsp {
333 a487c1d0 2018-01-14 stsp 	uint8_t t = 0;
334 a487c1d0 2018-01-14 stsp 	uint64_t s = 0;
335 a487c1d0 2018-01-14 stsp 	uint8_t sizeN;
336 a487c1d0 2018-01-14 stsp 	size_t n;
337 a487c1d0 2018-01-14 stsp 	int i = 0;
338 a487c1d0 2018-01-14 stsp 
339 a1fd68d8 2018-01-12 stsp 	do {
340 a1fd68d8 2018-01-12 stsp 		/* We do not support size values which don't fit in 64 bit. */
341 a487c1d0 2018-01-14 stsp 		if (i > 9)
342 a487c1d0 2018-01-14 stsp 			return got_error(GOT_ERR_NO_SPACE);
343 a1fd68d8 2018-01-12 stsp 
344 a1fd68d8 2018-01-12 stsp 		n = fread(&sizeN, sizeof(sizeN), 1, packfile);
345 a487c1d0 2018-01-14 stsp 		if (n != 1)
346 a487c1d0 2018-01-14 stsp 			return got_ferror(packfile, GOT_ERR_BAD_PACKIDX);
347 8251fdbc 2018-01-12 stsp 
348 a1fd68d8 2018-01-12 stsp 		if (i == 0) {
349 a487c1d0 2018-01-14 stsp 			t = (sizeN & GOT_PACK_OBJ_SIZE0_TYPE_MASK) >>
350 a1fd68d8 2018-01-12 stsp 			    GOT_PACK_OBJ_SIZE0_TYPE_MASK_SHIFT;
351 a487c1d0 2018-01-14 stsp 			s = (sizeN & GOT_PACK_OBJ_SIZE0_VAL_MASK);
352 a1fd68d8 2018-01-12 stsp 		} else {
353 a1fd68d8 2018-01-12 stsp 			size_t shift = 4 + 7 * (i - 1);
354 a487c1d0 2018-01-14 stsp 			s |= ((sizeN & GOT_PACK_OBJ_SIZE_VAL_MASK) << shift);
355 a1fd68d8 2018-01-12 stsp 		}
356 a1fd68d8 2018-01-12 stsp 		i++;
357 a1fd68d8 2018-01-12 stsp 	} while (sizeN & GOT_PACK_OBJ_SIZE_MORE);
358 a1fd68d8 2018-01-12 stsp 
359 a487c1d0 2018-01-14 stsp 	*type = t;
360 a487c1d0 2018-01-14 stsp 	*size = s;
361 3ee5fc21 2018-01-17 stsp 	*len = i * sizeof(sizeN);
362 a487c1d0 2018-01-14 stsp 	return NULL;
363 0a0a3048 2018-01-10 stsp }
364 c54542a0 2018-01-13 stsp 
365 a1fd68d8 2018-01-12 stsp static const struct got_error *
366 6ccb713b 2018-01-19 stsp open_packed_plain_object(struct got_object **obj, const char *path_packfile,
367 6ccb713b 2018-01-19 stsp     struct got_object_id *id, uint8_t type, off_t offset, size_t size)
368 6ccb713b 2018-01-19 stsp {
369 6ccb713b 2018-01-19 stsp 	*obj = calloc(1, sizeof(**obj));
370 6ccb713b 2018-01-19 stsp 	if (*obj == NULL)
371 6ccb713b 2018-01-19 stsp 		return got_error(GOT_ERR_NO_MEM);
372 6ccb713b 2018-01-19 stsp 
373 6ccb713b 2018-01-19 stsp 	(*obj)->path_packfile = strdup(path_packfile);
374 6ccb713b 2018-01-19 stsp 	if ((*obj)->path_packfile == NULL) {
375 6ccb713b 2018-01-19 stsp 		free(*obj);
376 6ccb713b 2018-01-19 stsp 		*obj = NULL;
377 6ccb713b 2018-01-19 stsp 		return got_error(GOT_ERR_NO_MEM);
378 6ccb713b 2018-01-19 stsp 	}
379 6ccb713b 2018-01-19 stsp 
380 6ccb713b 2018-01-19 stsp 	(*obj)->type = type;
381 6ccb713b 2018-01-19 stsp 	(*obj)->flags = GOT_OBJ_FLAG_PACKED;
382 6ccb713b 2018-01-19 stsp 	(*obj)->hdrlen = 0;
383 6ccb713b 2018-01-19 stsp 	(*obj)->size = size;
384 6ccb713b 2018-01-19 stsp 	memcpy(&(*obj)->id, id, sizeof((*obj)->id));
385 6ccb713b 2018-01-19 stsp 	(*obj)->pack_offset = offset;
386 6ccb713b 2018-01-19 stsp 
387 6ccb713b 2018-01-19 stsp 	return NULL;
388 6ccb713b 2018-01-19 stsp }
389 6ccb713b 2018-01-19 stsp 
390 6ccb713b 2018-01-19 stsp static const struct got_error *
391 6c00b545 2018-01-17 stsp open_packed_object(struct got_object **obj, struct got_repository *repo,
392 6c00b545 2018-01-17 stsp     const char *path_packdir, struct got_packidx_v2_hdr *packidx,
393 6c00b545 2018-01-17 stsp     struct got_object_id *id)
394 a1fd68d8 2018-01-12 stsp {
395 a1fd68d8 2018-01-12 stsp 	const struct got_error *err = NULL;
396 a1fd68d8 2018-01-12 stsp 	int idx = get_object_idx(packidx, id);
397 a1fd68d8 2018-01-12 stsp 	off_t offset;
398 a1fd68d8 2018-01-12 stsp 	char hex[SHA1_DIGEST_STRING_LENGTH];
399 a1fd68d8 2018-01-12 stsp 	char *sha1str;
400 6c00b545 2018-01-17 stsp 	char *path_packfile;
401 6c00b545 2018-01-17 stsp 	FILE *packfile;
402 6c00b545 2018-01-17 stsp 	uint8_t type;
403 6c00b545 2018-01-17 stsp 	uint64_t size;
404 3ee5fc21 2018-01-17 stsp 	size_t tslen;
405 a1fd68d8 2018-01-12 stsp 
406 6c00b545 2018-01-17 stsp 	*obj = NULL;
407 a1fd68d8 2018-01-12 stsp 	if (idx == -1) /* object not found in pack index */
408 a1fd68d8 2018-01-12 stsp 		return NULL;
409 a1fd68d8 2018-01-12 stsp 
410 a1fd68d8 2018-01-12 stsp 	offset = get_object_offset(packidx, idx);
411 a1fd68d8 2018-01-12 stsp 	if (offset == (uint64_t)-1)
412 a1fd68d8 2018-01-12 stsp 		return got_error(GOT_ERR_BAD_PACKIDX);
413 a1fd68d8 2018-01-12 stsp 
414 a1fd68d8 2018-01-12 stsp 	sha1str = got_sha1_digest_to_str(packidx->trailer.packfile_sha1,
415 a1fd68d8 2018-01-12 stsp 	    hex, sizeof(hex));
416 a1fd68d8 2018-01-12 stsp 	if (sha1str == NULL)
417 a1fd68d8 2018-01-12 stsp 		return got_error(GOT_ERR_PACKIDX_CSUM);
418 a1fd68d8 2018-01-12 stsp 
419 a1fd68d8 2018-01-12 stsp 	if (asprintf(&path_packfile, "%s/%s%s%s", path_packdir,
420 a1fd68d8 2018-01-12 stsp 	    GOT_PACK_PREFIX, sha1str, GOT_PACKFILE_SUFFIX) == -1)
421 a1fd68d8 2018-01-12 stsp 		return got_error(GOT_ERR_NO_MEM);
422 a1fd68d8 2018-01-12 stsp 
423 a1fd68d8 2018-01-12 stsp 	packfile = fopen(path_packfile, "rb");
424 a1fd68d8 2018-01-12 stsp 	if (packfile == NULL) {
425 f334529e 2018-01-12 stsp 		err = got_error_from_errno();
426 a1fd68d8 2018-01-12 stsp 		goto done;
427 a1fd68d8 2018-01-12 stsp 	}
428 a1fd68d8 2018-01-12 stsp 
429 a1fd68d8 2018-01-12 stsp 	err = read_packfile_hdr(packfile, packidx);
430 a1fd68d8 2018-01-12 stsp 	if (err)
431 a1fd68d8 2018-01-12 stsp 		goto done;
432 a1fd68d8 2018-01-12 stsp 
433 6c00b545 2018-01-17 stsp 	if (fseeko(packfile, offset, SEEK_SET) != 0) {
434 6c00b545 2018-01-17 stsp 		err = got_error_from_errno();
435 6c00b545 2018-01-17 stsp 		goto done;
436 6c00b545 2018-01-17 stsp 	}
437 6c00b545 2018-01-17 stsp 
438 3ee5fc21 2018-01-17 stsp 	err = decode_type_and_size(&type, &size, &tslen, packfile);
439 a1fd68d8 2018-01-12 stsp 	if (err)
440 a1fd68d8 2018-01-12 stsp 		goto done;
441 a1fd68d8 2018-01-12 stsp 
442 6c00b545 2018-01-17 stsp 	switch (type) {
443 6c00b545 2018-01-17 stsp 	case GOT_OBJ_TYPE_COMMIT:
444 6c00b545 2018-01-17 stsp 	case GOT_OBJ_TYPE_TREE:
445 6c00b545 2018-01-17 stsp 	case GOT_OBJ_TYPE_BLOB:
446 6ccb713b 2018-01-19 stsp 		err = open_packed_plain_object(obj, path_packfile, id, type,
447 6ccb713b 2018-01-19 stsp 		    offset + tslen, size);
448 6c00b545 2018-01-17 stsp 		break;
449 6ccb713b 2018-01-19 stsp 
450 6c00b545 2018-01-17 stsp 	case GOT_OBJ_TYPE_REF_DELTA:
451 6c00b545 2018-01-17 stsp 	case GOT_OBJ_TYPE_TAG:
452 6c00b545 2018-01-17 stsp 	case GOT_OBJ_TYPE_OFFSET_DELTA:
453 6c00b545 2018-01-17 stsp 	default:
454 6c00b545 2018-01-17 stsp 		err = got_error(GOT_ERR_NOT_IMPL);
455 6c00b545 2018-01-17 stsp 		goto done;
456 6c00b545 2018-01-17 stsp 	}
457 a1fd68d8 2018-01-12 stsp done:
458 a1fd68d8 2018-01-12 stsp 	free(path_packfile);
459 6c00b545 2018-01-17 stsp 	if (err)
460 6c00b545 2018-01-17 stsp 		free(*obj);
461 f334529e 2018-01-12 stsp 	if (packfile && fclose(packfile) == -1 && err == 0)
462 f334529e 2018-01-12 stsp 		err = got_error_from_errno();
463 a1fd68d8 2018-01-12 stsp 	return err;
464 a1fd68d8 2018-01-12 stsp }
465 a1fd68d8 2018-01-12 stsp 
466 a1fd68d8 2018-01-12 stsp const struct got_error *
467 6c00b545 2018-01-17 stsp got_packfile_open_object(struct got_object **obj, struct got_object_id *id,
468 a1fd68d8 2018-01-12 stsp     struct got_repository *repo)
469 a1fd68d8 2018-01-12 stsp {
470 a1fd68d8 2018-01-12 stsp 	const struct got_error *err = NULL;
471 a1fd68d8 2018-01-12 stsp 	DIR *packdir = NULL;
472 a1fd68d8 2018-01-12 stsp 	struct dirent *dent;
473 a1fd68d8 2018-01-12 stsp 	char *path_packdir = got_repo_get_path_objects_pack(repo);
474 a1fd68d8 2018-01-12 stsp 
475 a1fd68d8 2018-01-12 stsp 	if (path_packdir == NULL) {
476 a1fd68d8 2018-01-12 stsp 		err = got_error(GOT_ERR_NO_MEM);
477 a1fd68d8 2018-01-12 stsp 		goto done;
478 a1fd68d8 2018-01-12 stsp 	}
479 a1fd68d8 2018-01-12 stsp 
480 a1fd68d8 2018-01-12 stsp 	packdir = opendir(path_packdir);
481 a1fd68d8 2018-01-12 stsp 	if (packdir == NULL) {
482 f334529e 2018-01-12 stsp 		err = got_error_from_errno();
483 a1fd68d8 2018-01-12 stsp 		goto done;
484 a1fd68d8 2018-01-12 stsp 	}
485 a1fd68d8 2018-01-12 stsp 
486 a1fd68d8 2018-01-12 stsp 	while ((dent = readdir(packdir)) != NULL) {
487 a1fd68d8 2018-01-12 stsp 		struct got_packidx_v2_hdr *packidx;
488 a1fd68d8 2018-01-12 stsp 		char *path_packidx, *path_object;
489 a1fd68d8 2018-01-12 stsp 
490 a1fd68d8 2018-01-12 stsp 		if (!is_packidx_filename(dent->d_name, dent->d_namlen))
491 a1fd68d8 2018-01-12 stsp 			continue;
492 a1fd68d8 2018-01-12 stsp 
493 a1fd68d8 2018-01-12 stsp 		if (asprintf(&path_packidx, "%s/%s", path_packdir,
494 a1fd68d8 2018-01-12 stsp 		    dent->d_name) == -1) {
495 a1fd68d8 2018-01-12 stsp 			err = got_error(GOT_ERR_NO_MEM);
496 a1fd68d8 2018-01-12 stsp 			goto done;
497 a1fd68d8 2018-01-12 stsp 		}
498 a1fd68d8 2018-01-12 stsp 
499 a1fd68d8 2018-01-12 stsp 		err = got_packidx_open(&packidx, path_packidx);
500 a1fd68d8 2018-01-12 stsp 		free(path_packidx);
501 a1fd68d8 2018-01-12 stsp 		if (err)
502 a1fd68d8 2018-01-12 stsp 			goto done;
503 a1fd68d8 2018-01-12 stsp 
504 6c00b545 2018-01-17 stsp 		err = open_packed_object(obj, repo, path_packdir, packidx, id);
505 bbcf6d65 2018-01-17 stsp 		got_packidx_close(packidx);
506 a1fd68d8 2018-01-12 stsp 		if (err)
507 a1fd68d8 2018-01-12 stsp 			goto done;
508 6c00b545 2018-01-17 stsp 		if (*obj != NULL)
509 a1fd68d8 2018-01-12 stsp 			break;
510 a1fd68d8 2018-01-12 stsp 	}
511 a1fd68d8 2018-01-12 stsp 
512 a1fd68d8 2018-01-12 stsp done:
513 a1fd68d8 2018-01-12 stsp 	free(path_packdir);
514 f334529e 2018-01-12 stsp 	if (packdir && closedir(packdir) != 0 && err == 0)
515 3ee5fc21 2018-01-17 stsp 		err = got_error_from_errno();
516 3ee5fc21 2018-01-17 stsp 	return err;
517 3ee5fc21 2018-01-17 stsp }
518 3ee5fc21 2018-01-17 stsp 
519 3ee5fc21 2018-01-17 stsp static const struct got_error *
520 3ee5fc21 2018-01-17 stsp dump_plain_object(FILE *infile, uint8_t type, size_t size, FILE *outfile)
521 3ee5fc21 2018-01-17 stsp {
522 3ee5fc21 2018-01-17 stsp 	size_t n;
523 3ee5fc21 2018-01-17 stsp 
524 3ee5fc21 2018-01-17 stsp 	while (size > 0) {
525 3ee5fc21 2018-01-17 stsp 		uint8_t data[2048];
526 3ee5fc21 2018-01-17 stsp 		size_t len = MIN(size, sizeof(data));
527 3ee5fc21 2018-01-17 stsp 
528 3ee5fc21 2018-01-17 stsp 		n = fread(data, len, 1, infile);
529 3ee5fc21 2018-01-17 stsp 		if (n != 1)
530 efd2a263 2018-01-19 stsp 			return got_ferror(infile, GOT_ERR_BAD_PACKFILE);
531 3ee5fc21 2018-01-17 stsp 
532 3ee5fc21 2018-01-17 stsp 		n = fwrite(data, len, 1, outfile);
533 3ee5fc21 2018-01-17 stsp 		if (n != 1)
534 efd2a263 2018-01-19 stsp 			return got_ferror(outfile, GOT_ERR_IO);
535 3ee5fc21 2018-01-17 stsp 
536 3ee5fc21 2018-01-17 stsp 		size -= len;
537 3ee5fc21 2018-01-17 stsp 	}
538 3ee5fc21 2018-01-17 stsp 
539 3ee5fc21 2018-01-17 stsp 	rewind(outfile);
540 3ee5fc21 2018-01-17 stsp 	return NULL;
541 3ee5fc21 2018-01-17 stsp }
542 efd2a263 2018-01-19 stsp 
543 efd2a263 2018-01-19 stsp static const struct got_error *
544 efd2a263 2018-01-19 stsp dump_ref_delta_object(struct got_repository *repo, FILE *infile, uint8_t type,
545 efd2a263 2018-01-19 stsp     size_t size, FILE *outfile)
546 efd2a263 2018-01-19 stsp {
547 efd2a263 2018-01-19 stsp 	const struct got_error *err = NULL;
548 efd2a263 2018-01-19 stsp 	struct got_object_id base_id;
549 efd2a263 2018-01-19 stsp 	struct got_object *base_obj;
550 efd2a263 2018-01-19 stsp 	int n;
551 3ee5fc21 2018-01-17 stsp 
552 efd2a263 2018-01-19 stsp 	if (size < sizeof(base_id))
553 efd2a263 2018-01-19 stsp 		return got_ferror(infile, GOT_ERR_BAD_PACKFILE);
554 efd2a263 2018-01-19 stsp 
555 efd2a263 2018-01-19 stsp 	n = fread(&base_id, sizeof(base_id), 1, infile);
556 efd2a263 2018-01-19 stsp 	if (n != 1)
557 efd2a263 2018-01-19 stsp 		return got_ferror(infile, GOT_ERR_BAD_PACKFILE);
558 efd2a263 2018-01-19 stsp 
559 efd2a263 2018-01-19 stsp 	size -= sizeof(base_id);
560 efd2a263 2018-01-19 stsp 	if (size <= 0)
561 efd2a263 2018-01-19 stsp 		return got_ferror(infile, GOT_ERR_BAD_PACKFILE);
562 efd2a263 2018-01-19 stsp 
563 efd2a263 2018-01-19 stsp 	err = got_object_open(&base_obj, repo, &base_id);
564 efd2a263 2018-01-19 stsp 	if (err)
565 efd2a263 2018-01-19 stsp 		return err;
566 efd2a263 2018-01-19 stsp 
567 efd2a263 2018-01-19 stsp 	err = got_delta_apply(repo, infile, size, base_obj, outfile);
568 efd2a263 2018-01-19 stsp 	got_object_close(base_obj);
569 efd2a263 2018-01-19 stsp 	return err;
570 efd2a263 2018-01-19 stsp }
571 efd2a263 2018-01-19 stsp 
572 3ee5fc21 2018-01-17 stsp const struct got_error *
573 3ee5fc21 2018-01-17 stsp got_packfile_extract_object(FILE **f, struct got_object *obj,
574 3ee5fc21 2018-01-17 stsp     struct got_repository *repo)
575 3ee5fc21 2018-01-17 stsp {
576 3ee5fc21 2018-01-17 stsp 	const struct got_error *err = NULL;
577 3ee5fc21 2018-01-17 stsp 	FILE *packfile = NULL;
578 3ee5fc21 2018-01-17 stsp 
579 3ee5fc21 2018-01-17 stsp 	if ((obj->flags & GOT_OBJ_FLAG_PACKED) == 0)
580 3ee5fc21 2018-01-17 stsp 		return got_error(GOT_ERR_OBJ_NOT_PACKED);
581 3ee5fc21 2018-01-17 stsp 
582 3ee5fc21 2018-01-17 stsp 	*f = got_opentemp();
583 3ee5fc21 2018-01-17 stsp 	if (*f == NULL) {
584 3ee5fc21 2018-01-17 stsp 		err = got_error(GOT_ERR_FILE_OPEN);
585 3ee5fc21 2018-01-17 stsp 		goto done;
586 3ee5fc21 2018-01-17 stsp 	}
587 3ee5fc21 2018-01-17 stsp 
588 3ee5fc21 2018-01-17 stsp 	packfile = fopen(obj->path_packfile, "rb");
589 3ee5fc21 2018-01-17 stsp 	if (packfile == NULL) {
590 f334529e 2018-01-12 stsp 		err = got_error_from_errno();
591 3ee5fc21 2018-01-17 stsp 		goto done;
592 3ee5fc21 2018-01-17 stsp 	}
593 3ee5fc21 2018-01-17 stsp 
594 3ee5fc21 2018-01-17 stsp 	if (fseeko(packfile, obj->pack_offset, SEEK_SET) != 0) {
595 3ee5fc21 2018-01-17 stsp 		err = got_error_from_errno();
596 3ee5fc21 2018-01-17 stsp 		goto done;
597 3ee5fc21 2018-01-17 stsp 	}
598 3ee5fc21 2018-01-17 stsp 
599 3ee5fc21 2018-01-17 stsp 	switch (obj->type) {
600 3ee5fc21 2018-01-17 stsp 	case GOT_OBJ_TYPE_COMMIT:
601 3ee5fc21 2018-01-17 stsp 	case GOT_OBJ_TYPE_TREE:
602 3ee5fc21 2018-01-17 stsp 	case GOT_OBJ_TYPE_BLOB:
603 3ee5fc21 2018-01-17 stsp 		err = dump_plain_object(packfile, obj->type, obj->size, *f);
604 3ee5fc21 2018-01-17 stsp 		break;
605 3ee5fc21 2018-01-17 stsp 	case GOT_OBJ_TYPE_REF_DELTA:
606 efd2a263 2018-01-19 stsp 		err = dump_ref_delta_object(repo, packfile, obj->type,
607 efd2a263 2018-01-19 stsp 		    obj->size, *f);
608 efd2a263 2018-01-19 stsp 		break;
609 3ee5fc21 2018-01-17 stsp 	case GOT_OBJ_TYPE_TAG:
610 3ee5fc21 2018-01-17 stsp 	case GOT_OBJ_TYPE_OFFSET_DELTA:
611 3ee5fc21 2018-01-17 stsp 	default:
612 3ee5fc21 2018-01-17 stsp 		err = got_error(GOT_ERR_NOT_IMPL);
613 3ee5fc21 2018-01-17 stsp 		goto done;
614 3ee5fc21 2018-01-17 stsp 	}
615 3ee5fc21 2018-01-17 stsp done:
616 3ee5fc21 2018-01-17 stsp 	if (packfile)
617 3ee5fc21 2018-01-17 stsp 		fclose(packfile);
618 3ee5fc21 2018-01-17 stsp 	if (err && *f)
619 3ee5fc21 2018-01-17 stsp 		fclose(*f);
620 a1fd68d8 2018-01-12 stsp 	return err;
621 a1fd68d8 2018-01-12 stsp }