1 a440fac0 2018-09-06 stsp /*
   2 5aa81393 2020-01-06 stsp  * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
   3 a440fac0 2018-09-06 stsp  *
   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.
   7 a440fac0 2018-09-06 stsp  *
   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.
  15 a440fac0 2018-09-06 stsp  */
  16 a440fac0 2018-09-06 stsp 
  17 a440fac0 2018-09-06 stsp #include <sys/types.h>
  18 a440fac0 2018-09-06 stsp #include <sys/stat.h>
  19 8b925c6c 2022-07-16 thomas #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 a440fac0 2018-09-06 stsp #include <sys/wait.h>
  23 2b0ae357 2022-01-10 thomas #include <sys/mman.h>
  24 a440fac0 2018-09-06 stsp 
  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 <zlib.h>
  31 a440fac0 2018-09-06 stsp #include <ctype.h>
  32 a440fac0 2018-09-06 stsp #include <limits.h>
  33 a440fac0 2018-09-06 stsp #include <time.h>
  34 ad242220 2018-09-08 stsp #include <unistd.h>
  35 dd038bc6 2021-09-21 thomas.ad 
  36 dd038bc6 2021-09-21 thomas.ad #include "got_compat.h"
  37 a440fac0 2018-09-06 stsp 
  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"
  42 324d37e7 2019-05-11 stsp #include "got_path.h"
  43 a440fac0 2018-09-06 stsp 
  44 a440fac0 2018-09-06 stsp #include "got_lib_sha1.h"
  45 a440fac0 2018-09-06 stsp #include "got_lib_delta.h"
  46 41fa1437 2018-11-05 stsp #include "got_lib_inflate.h"
  47 41fa1437 2018-11-05 stsp #include "got_lib_object.h"
  48 3022d272 2019-11-14 stsp #include "got_lib_object_parse.h"
  49 6bef87be 2018-09-11 stsp #include "got_lib_object_cache.h"
  50 15a94983 2018-12-23 stsp #include "got_lib_pack.h"
  51 ad242220 2018-09-08 stsp #include "got_lib_repository.h"
  52 a440fac0 2018-09-06 stsp 
  53 a440fac0 2018-09-06 stsp #ifndef nitems
  54 a440fac0 2018-09-06 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
  55 a440fac0 2018-09-06 stsp #endif
  56 ca6e02ac 2020-01-07 stsp 
  57 ca6e02ac 2020-01-07 stsp struct got_object_id *
  58 ca6e02ac 2020-01-07 stsp got_object_id_dup(struct got_object_id *id1)
  59 ca6e02ac 2020-01-07 stsp {
  60 ca6e02ac 2020-01-07 stsp 	struct got_object_id *id2;
  61 ca6e02ac 2020-01-07 stsp 
  62 ca6e02ac 2020-01-07 stsp 	id2 = malloc(sizeof(*id2));
  63 ca6e02ac 2020-01-07 stsp 	if (id2 == NULL)
  64 ca6e02ac 2020-01-07 stsp 		return NULL;
  65 ca6e02ac 2020-01-07 stsp 	memcpy(id2, id1, sizeof(*id2));
  66 ca6e02ac 2020-01-07 stsp 	return id2;
  67 ca6e02ac 2020-01-07 stsp }
  68 a440fac0 2018-09-06 stsp 
  69 f054b67a 2018-11-05 stsp int
  70 f054b67a 2018-11-05 stsp got_object_id_cmp(const struct got_object_id *id1,
  71 f054b67a 2018-11-05 stsp     const struct got_object_id *id2)
  72 f054b67a 2018-11-05 stsp {
  73 f054b67a 2018-11-05 stsp 	return memcmp(id1->sha1, id2->sha1, SHA1_DIGEST_LENGTH);
  74 f054b67a 2018-11-05 stsp }
  75 f054b67a 2018-11-05 stsp 
  76 2ff12563 2018-09-15 stsp const struct got_error *
  77 5df4932d 2018-11-05 stsp got_object_qid_alloc_partial(struct got_object_qid **qid)
  78 5df4932d 2018-11-05 stsp {
  79 5df4932d 2018-11-05 stsp 	*qid = malloc(sizeof(**qid));
  80 5df4932d 2018-11-05 stsp 	if (*qid == NULL)
  81 638f9024 2019-05-13 stsp 		return got_error_from_errno("malloc");
  82 5df4932d 2018-11-05 stsp 
  83 74a2356f 2021-06-18 stsp 	(*qid)->data = NULL;
  84 5df4932d 2018-11-05 stsp 	return NULL;
  85 5df4932d 2018-11-05 stsp }
  86 5df4932d 2018-11-05 stsp 
  87 5df4932d 2018-11-05 stsp const struct got_error *
  88 2ff12563 2018-09-15 stsp got_object_id_str(char **outbuf, struct got_object_id *id)
  89 2ff12563 2018-09-15 stsp {
  90 2ff12563 2018-09-15 stsp 	static const size_t len = SHA1_DIGEST_STRING_LENGTH;
  91 2ff12563 2018-09-15 stsp 
  92 2ff12563 2018-09-15 stsp 	*outbuf = malloc(len);
  93 2ff12563 2018-09-15 stsp 	if (*outbuf == NULL)
  94 638f9024 2019-05-13 stsp 		return got_error_from_errno("malloc");
  95 2ff12563 2018-09-15 stsp 
  96 2ff12563 2018-09-15 stsp 	if (got_sha1_digest_to_str(id->sha1, *outbuf, len) == NULL) {
  97 2ff12563 2018-09-15 stsp 		free(*outbuf);
  98 2ff12563 2018-09-15 stsp 		*outbuf = NULL;
  99 2ff12563 2018-09-15 stsp 		return got_error(GOT_ERR_BAD_OBJ_ID_STR);
 100 2ff12563 2018-09-15 stsp 	}
 101 a440fac0 2018-09-06 stsp 
 102 2ff12563 2018-09-15 stsp 	return NULL;
 103 2ff12563 2018-09-15 stsp }
 104 2ff12563 2018-09-15 stsp 
 105 03fa71c8 2018-09-06 stsp void
 106 03fa71c8 2018-09-06 stsp got_object_close(struct got_object *obj)
 107 03fa71c8 2018-09-06 stsp {
 108 03fa71c8 2018-09-06 stsp 	if (obj->refcnt > 0) {
 109 03fa71c8 2018-09-06 stsp 		obj->refcnt--;
 110 03fa71c8 2018-09-06 stsp 		if (obj->refcnt > 0)
 111 03fa71c8 2018-09-06 stsp 			return;
 112 03fa71c8 2018-09-06 stsp 	}
 113 03fa71c8 2018-09-06 stsp 
 114 03fa71c8 2018-09-06 stsp 	if (obj->flags & GOT_OBJ_FLAG_DELTIFIED) {
 115 03fa71c8 2018-09-06 stsp 		struct got_delta *delta;
 116 dbdddfee 2021-06-23 naddy 		while (!STAILQ_EMPTY(&obj->deltas.entries)) {
 117 dbdddfee 2021-06-23 naddy 			delta = STAILQ_FIRST(&obj->deltas.entries);
 118 dbdddfee 2021-06-23 naddy 			STAILQ_REMOVE_HEAD(&obj->deltas.entries, entry);
 119 2256993b 2019-07-15 stsp 			free(delta);
 120 03fa71c8 2018-09-06 stsp 		}
 121 03fa71c8 2018-09-06 stsp 	}
 122 03fa71c8 2018-09-06 stsp 	free(obj);
 123 03fa71c8 2018-09-06 stsp }
 124 03fa71c8 2018-09-06 stsp 
 125 8ab9215c 2021-10-15 thomas const struct got_error *
 126 8ab9215c 2021-10-15 thomas got_object_raw_close(struct got_raw_object *obj)
 127 8ab9215c 2021-10-15 thomas {
 128 8ab9215c 2021-10-15 thomas 	const struct got_error *err = NULL;
 129 8ab9215c 2021-10-15 thomas 
 130 8ab9215c 2021-10-15 thomas 	if (obj->refcnt > 0) {
 131 8ab9215c 2021-10-15 thomas 		obj->refcnt--;
 132 8ab9215c 2021-10-15 thomas 		if (obj->refcnt > 0)
 133 8ab9215c 2021-10-15 thomas 			return NULL;
 134 8ab9215c 2021-10-15 thomas 	}
 135 8ab9215c 2021-10-15 thomas 
 136 3efd8e31 2022-10-23 thomas 	if (obj->close_cb)
 137 3efd8e31 2022-10-23 thomas 		obj->close_cb(obj);
 138 3efd8e31 2022-10-23 thomas 
 139 2b0ae357 2022-01-10 thomas 	if (obj->f == NULL) {
 140 2b0ae357 2022-01-10 thomas 		if (obj->fd != -1) {
 141 2b0ae357 2022-01-10 thomas 			if (munmap(obj->data, obj->hdrlen + obj->size) == -1)
 142 2b0ae357 2022-01-10 thomas 				err = got_error_from_errno("munmap");
 143 2b0ae357 2022-01-10 thomas 			if (close(obj->fd) == -1 && err == NULL)
 144 2b0ae357 2022-01-10 thomas 				err = got_error_from_errno("close");
 145 2b0ae357 2022-01-10 thomas 		} else
 146 2b0ae357 2022-01-10 thomas 			free(obj->data);
 147 2b0ae357 2022-01-10 thomas 	} else {
 148 2b0ae357 2022-01-10 thomas 		if (fclose(obj->f) == EOF && err == NULL)
 149 2b0ae357 2022-01-10 thomas 			err = got_error_from_errno("fclose");
 150 2b0ae357 2022-01-10 thomas 	}
 151 8ab9215c 2021-10-15 thomas 	free(obj);
 152 8ab9215c 2021-10-15 thomas 	return err;
 153 8ab9215c 2021-10-15 thomas }
 154 8ab9215c 2021-10-15 thomas 
 155 03fa71c8 2018-09-06 stsp void
 156 03fa71c8 2018-09-06 stsp got_object_qid_free(struct got_object_qid *qid)
 157 03fa71c8 2018-09-06 stsp {
 158 03fa71c8 2018-09-06 stsp 	free(qid);
 159 1785f84a 2018-12-23 stsp }
 160 1785f84a 2018-12-23 stsp 
 161 dd88155e 2019-06-29 stsp void
 162 dd88155e 2019-06-29 stsp got_object_id_queue_free(struct got_object_id_queue *ids)
 163 dd88155e 2019-06-29 stsp {
 164 dd88155e 2019-06-29 stsp 	struct got_object_qid *qid;
 165 dd88155e 2019-06-29 stsp 
 166 dbdddfee 2021-06-23 naddy 	while (!STAILQ_EMPTY(ids)) {
 167 dbdddfee 2021-06-23 naddy 		qid = STAILQ_FIRST(ids);
 168 dbdddfee 2021-06-23 naddy 		STAILQ_REMOVE_HEAD(ids, entry);
 169 dd88155e 2019-06-29 stsp 		got_object_qid_free(qid);
 170 dd88155e 2019-06-29 stsp 	}
 171 dd88155e 2019-06-29 stsp }
 172 dd88155e 2019-06-29 stsp 
 173 1785f84a 2018-12-23 stsp const struct got_error *
 174 1785f84a 2018-12-23 stsp got_object_parse_header(struct got_object **obj, char *buf, size_t len)
 175 1785f84a 2018-12-23 stsp {
 176 ff2a4428 2019-03-19 stsp 	const char *obj_labels[] = {
 177 ff2a4428 2019-03-19 stsp 		GOT_OBJ_LABEL_COMMIT,
 178 ff2a4428 2019-03-19 stsp 		GOT_OBJ_LABEL_TREE,
 179 ff2a4428 2019-03-19 stsp 		GOT_OBJ_LABEL_BLOB,
 180 ff2a4428 2019-03-19 stsp 		GOT_OBJ_LABEL_TAG,
 181 1785f84a 2018-12-23 stsp 	};
 182 1785f84a 2018-12-23 stsp 	const int obj_types[] = {
 183 1785f84a 2018-12-23 stsp 		GOT_OBJ_TYPE_COMMIT,
 184 1785f84a 2018-12-23 stsp 		GOT_OBJ_TYPE_TREE,
 185 1785f84a 2018-12-23 stsp 		GOT_OBJ_TYPE_BLOB,
 186 1785f84a 2018-12-23 stsp 		GOT_OBJ_TYPE_TAG,
 187 1785f84a 2018-12-23 stsp 	};
 188 1785f84a 2018-12-23 stsp 	int type = 0;
 189 9b31ed65 2022-02-12 thomas 	size_t size = 0;
 190 16aeacf7 2020-11-26 stsp 	size_t i;
 191 9b31ed65 2022-02-12 thomas 	char *end;
 192 1785f84a 2018-12-23 stsp 
 193 1785f84a 2018-12-23 stsp 	*obj = NULL;
 194 1785f84a 2018-12-23 stsp 
 195 9b31ed65 2022-02-12 thomas 	end = memchr(buf, '\0', len);
 196 9b31ed65 2022-02-12 thomas 	if (end == NULL)
 197 9ef4ac16 2019-04-13 stsp 		return got_error(GOT_ERR_BAD_OBJ_HDR);
 198 1785f84a 2018-12-23 stsp 
 199 ff2a4428 2019-03-19 stsp 	for (i = 0; i < nitems(obj_labels); i++) {
 200 ff2a4428 2019-03-19 stsp 		const char *label = obj_labels[i];
 201 ff2a4428 2019-03-19 stsp 		size_t label_len = strlen(label);
 202 1785f84a 2018-12-23 stsp 		const char *errstr;
 203 1785f84a 2018-12-23 stsp 
 204 9b31ed65 2022-02-12 thomas 		if (len <= label_len || buf + label_len >= end ||
 205 9b31ed65 2022-02-12 thomas 		    strncmp(buf, label, label_len) != 0)
 206 1785f84a 2018-12-23 stsp 			continue;
 207 1785f84a 2018-12-23 stsp 
 208 1785f84a 2018-12-23 stsp 		type = obj_types[i];
 209 ff2a4428 2019-03-19 stsp 		size = strtonum(buf + label_len, 0, LONG_MAX, &errstr);
 210 1785f84a 2018-12-23 stsp 		if (errstr != NULL)
 211 1785f84a 2018-12-23 stsp 			return got_error(GOT_ERR_BAD_OBJ_HDR);
 212 1785f84a 2018-12-23 stsp 		break;
 213 1785f84a 2018-12-23 stsp 	}
 214 1785f84a 2018-12-23 stsp 
 215 1785f84a 2018-12-23 stsp 	if (type == 0)
 216 1785f84a 2018-12-23 stsp 		return got_error(GOT_ERR_BAD_OBJ_HDR);
 217 1785f84a 2018-12-23 stsp 
 218 1785f84a 2018-12-23 stsp 	*obj = calloc(1, sizeof(**obj));
 219 1785f84a 2018-12-23 stsp 	if (*obj == NULL)
 220 638f9024 2019-05-13 stsp 		return got_error_from_errno("calloc");
 221 1785f84a 2018-12-23 stsp 	(*obj)->type = type;
 222 9b31ed65 2022-02-12 thomas 	(*obj)->hdrlen = end - buf + 1;
 223 1785f84a 2018-12-23 stsp 	(*obj)->size = size;
 224 1785f84a 2018-12-23 stsp 	return NULL;
 225 1785f84a 2018-12-23 stsp }
 226 1785f84a 2018-12-23 stsp 
 227 1785f84a 2018-12-23 stsp const struct got_error *
 228 1785f84a 2018-12-23 stsp got_object_read_header(struct got_object **obj, int fd)
 229 1785f84a 2018-12-23 stsp {
 230 1785f84a 2018-12-23 stsp 	const struct got_error *err;
 231 23bc48a9 2019-03-19 stsp 	struct got_inflate_buf zb;
 232 dbaa2362 2021-09-28 thomas 	uint8_t *buf;
 233 1785f84a 2018-12-23 stsp 	const size_t zbsize = 64;
 234 1785f84a 2018-12-23 stsp 	size_t outlen, totlen;
 235 1785f84a 2018-12-23 stsp 	int nbuf = 1;
 236 1785f84a 2018-12-23 stsp 
 237 1785f84a 2018-12-23 stsp 	*obj = NULL;
 238 1785f84a 2018-12-23 stsp 
 239 1785f84a 2018-12-23 stsp 	buf = malloc(zbsize);
 240 1785f84a 2018-12-23 stsp 	if (buf == NULL)
 241 638f9024 2019-05-13 stsp 		return got_error_from_errno("malloc");
 242 9b31ed65 2022-02-12 thomas 	buf[0] = '\0';
 243 1785f84a 2018-12-23 stsp 
 244 1e87a3c3 2020-03-18 stsp 	err = got_inflate_init(&zb, buf, zbsize, NULL);
 245 1785f84a 2018-12-23 stsp 	if (err)
 246 1785f84a 2018-12-23 stsp 		return err;
 247 1785f84a 2018-12-23 stsp 
 248 1785f84a 2018-12-23 stsp 	totlen = 0;
 249 1785f84a 2018-12-23 stsp 	do {
 250 3ab5e33c 2020-03-18 stsp 		err = got_inflate_read_fd(&zb, fd, &outlen, NULL);
 251 1785f84a 2018-12-23 stsp 		if (err)
 252 1785f84a 2018-12-23 stsp 			goto done;
 253 1785f84a 2018-12-23 stsp 		if (outlen == 0)
 254 1785f84a 2018-12-23 stsp 			break;
 255 1785f84a 2018-12-23 stsp 		totlen += outlen;
 256 dedbbd9d 2019-04-13 stsp 		if (memchr(zb.outbuf, '\0', outlen) == NULL) {
 257 dbaa2362 2021-09-28 thomas 			uint8_t *newbuf;
 258 1785f84a 2018-12-23 stsp 			nbuf++;
 259 1785f84a 2018-12-23 stsp 			newbuf = recallocarray(buf, nbuf - 1, nbuf, zbsize);
 260 1785f84a 2018-12-23 stsp 			if (newbuf == NULL) {
 261 638f9024 2019-05-13 stsp 				err = got_error_from_errno("recallocarray");
 262 1785f84a 2018-12-23 stsp 				goto done;
 263 1785f84a 2018-12-23 stsp 			}
 264 1785f84a 2018-12-23 stsp 			buf = newbuf;
 265 1785f84a 2018-12-23 stsp 			zb.outbuf = newbuf + totlen;
 266 1785f84a 2018-12-23 stsp 			zb.outlen = (nbuf * zbsize) - totlen;
 267 1785f84a 2018-12-23 stsp 		}
 268 dedbbd9d 2019-04-13 stsp 	} while (memchr(zb.outbuf, '\0', outlen) == NULL);
 269 1785f84a 2018-12-23 stsp 
 270 1785f84a 2018-12-23 stsp 	err = got_object_parse_header(obj, buf, totlen);
 271 1785f84a 2018-12-23 stsp done:
 272 1785f84a 2018-12-23 stsp 	free(buf);
 273 1785f84a 2018-12-23 stsp 	got_inflate_end(&zb);
 274 1785f84a 2018-12-23 stsp 	return err;
 275 876c234b 2018-09-10 stsp }
 276 3efd8e31 2022-10-23 thomas 
 277 3efd8e31 2022-10-23 thomas const struct got_error *
 278 3efd8e31 2022-10-23 thomas got_object_read_raw(uint8_t **outbuf, off_t *size, size_t *hdrlen,
 279 3efd8e31 2022-10-23 thomas     size_t max_in_mem_size, int outfd, struct got_object_id *expected_id,
 280 3efd8e31 2022-10-23 thomas     int infd)
 281 3efd8e31 2022-10-23 thomas {
 282 3efd8e31 2022-10-23 thomas 	const struct got_error *err = NULL;
 283 3efd8e31 2022-10-23 thomas 	struct got_object *obj;
 284 3efd8e31 2022-10-23 thomas 	struct got_inflate_checksum csum;
 285 3efd8e31 2022-10-23 thomas 	uint8_t sha1[SHA1_DIGEST_LENGTH];
 286 3efd8e31 2022-10-23 thomas 	SHA1_CTX sha1_ctx;
 287 3efd8e31 2022-10-23 thomas 	size_t len, consumed;
 288 3efd8e31 2022-10-23 thomas 	FILE *f = NULL;
 289 3efd8e31 2022-10-23 thomas 
 290 3efd8e31 2022-10-23 thomas 	*outbuf = NULL;
 291 3efd8e31 2022-10-23 thomas 	*size = 0;
 292 3efd8e31 2022-10-23 thomas 	*hdrlen = 0;
 293 3efd8e31 2022-10-23 thomas 
 294 3efd8e31 2022-10-23 thomas 	SHA1Init(&sha1_ctx);
 295 3efd8e31 2022-10-23 thomas 	memset(&csum, 0, sizeof(csum));
 296 3efd8e31 2022-10-23 thomas 	csum.output_sha1 = &sha1_ctx;
 297 3efd8e31 2022-10-23 thomas 
 298 3efd8e31 2022-10-23 thomas 	if (lseek(infd, SEEK_SET, 0) == -1)
 299 3efd8e31 2022-10-23 thomas 		return got_error_from_errno("lseek");
 300 3efd8e31 2022-10-23 thomas 
 301 3efd8e31 2022-10-23 thomas 	err = got_object_read_header(&obj, infd);
 302 3efd8e31 2022-10-23 thomas 	if (err)
 303 3efd8e31 2022-10-23 thomas 		return err;
 304 876c234b 2018-09-10 stsp 
 305 3efd8e31 2022-10-23 thomas 	if (lseek(infd, SEEK_SET, 0) == -1)
 306 3efd8e31 2022-10-23 thomas 		return got_error_from_errno("lseek");
 307 3efd8e31 2022-10-23 thomas 
 308 3efd8e31 2022-10-23 thomas 	if (obj->size + obj->hdrlen <= max_in_mem_size) {
 309 3efd8e31 2022-10-23 thomas 		err = got_inflate_to_mem_fd(outbuf, &len, &consumed, &csum,
 310 3efd8e31 2022-10-23 thomas 		    obj->size + obj->hdrlen, infd);
 311 3efd8e31 2022-10-23 thomas 	} else {
 312 3efd8e31 2022-10-23 thomas 		int fd;
 313 3efd8e31 2022-10-23 thomas 		/*
 314 3efd8e31 2022-10-23 thomas 		 * XXX This uses an extra file descriptor for no good reason.
 315 3efd8e31 2022-10-23 thomas 		 * We should have got_inflate_fd_to_fd().
 316 3efd8e31 2022-10-23 thomas 		 */
 317 3efd8e31 2022-10-23 thomas 		fd = dup(infd);
 318 3efd8e31 2022-10-23 thomas 		if (fd == -1)
 319 3efd8e31 2022-10-23 thomas 			return got_error_from_errno("dup");
 320 3efd8e31 2022-10-23 thomas 		f = fdopen(fd, "r");
 321 3efd8e31 2022-10-23 thomas 		if (f == NULL) {
 322 3efd8e31 2022-10-23 thomas 			err = got_error_from_errno("fdopen");
 323 3efd8e31 2022-10-23 thomas 			abort();
 324 3efd8e31 2022-10-23 thomas 			close(fd);
 325 3efd8e31 2022-10-23 thomas 			goto done;
 326 3efd8e31 2022-10-23 thomas 		}
 327 3efd8e31 2022-10-23 thomas 		err = got_inflate_to_fd(&len, f, &csum, outfd);
 328 3efd8e31 2022-10-23 thomas 	}
 329 3efd8e31 2022-10-23 thomas 	if (err)
 330 3efd8e31 2022-10-23 thomas 		goto done;
 331 3efd8e31 2022-10-23 thomas 
 332 3efd8e31 2022-10-23 thomas 	if (len < obj->hdrlen || len != obj->hdrlen + obj->size) {
 333 3efd8e31 2022-10-23 thomas 		err = got_error(GOT_ERR_BAD_OBJ_HDR);
 334 3efd8e31 2022-10-23 thomas 		goto done;
 335 3efd8e31 2022-10-23 thomas 	}
 336 3efd8e31 2022-10-23 thomas 
 337 3efd8e31 2022-10-23 thomas 	SHA1Final(sha1, &sha1_ctx);
 338 3efd8e31 2022-10-23 thomas 	if (memcmp(expected_id->sha1, sha1, SHA1_DIGEST_LENGTH) != 0) {
 339 3efd8e31 2022-10-23 thomas 		char buf[SHA1_DIGEST_STRING_LENGTH];
 340 3efd8e31 2022-10-23 thomas 		err = got_error_fmt(GOT_ERR_OBJ_CSUM,
 341 3efd8e31 2022-10-23 thomas 		    "checksum failure for object %s",
 342 3efd8e31 2022-10-23 thomas 		    got_sha1_digest_to_str(expected_id->sha1, buf,
 343 3efd8e31 2022-10-23 thomas 		    sizeof(buf)));
 344 3efd8e31 2022-10-23 thomas 		goto done;
 345 3efd8e31 2022-10-23 thomas 	}
 346 3efd8e31 2022-10-23 thomas 
 347 3efd8e31 2022-10-23 thomas 	*size = obj->size;
 348 3efd8e31 2022-10-23 thomas 	*hdrlen = obj->hdrlen;
 349 3efd8e31 2022-10-23 thomas done:
 350 3efd8e31 2022-10-23 thomas 	got_object_close(obj);
 351 3efd8e31 2022-10-23 thomas 	if (f && fclose(f) == EOF && err == NULL)
 352 3efd8e31 2022-10-23 thomas 		err = got_error_from_errno("fclose");
 353 3efd8e31 2022-10-23 thomas 	return err;
 354 3efd8e31 2022-10-23 thomas }
 355 3efd8e31 2022-10-23 thomas 
 356 a440fac0 2018-09-06 stsp struct got_commit_object *
 357 a440fac0 2018-09-06 stsp got_object_commit_alloc_partial(void)
 358 a440fac0 2018-09-06 stsp {
 359 a440fac0 2018-09-06 stsp 	struct got_commit_object *commit;
 360 a440fac0 2018-09-06 stsp 
 361 a440fac0 2018-09-06 stsp 	commit = calloc(1, sizeof(*commit));
 362 a440fac0 2018-09-06 stsp 	if (commit == NULL)
 363 a440fac0 2018-09-06 stsp 		return NULL;
 364 acf0c7c6 2018-11-05 stsp 	commit->tree_id = malloc(sizeof(*commit->tree_id));
 365 a440fac0 2018-09-06 stsp 	if (commit->tree_id == NULL) {
 366 a440fac0 2018-09-06 stsp 		free(commit);
 367 a440fac0 2018-09-06 stsp 		return NULL;
 368 a440fac0 2018-09-06 stsp 	}
 369 a440fac0 2018-09-06 stsp 
 370 dbdddfee 2021-06-23 naddy 	STAILQ_INIT(&commit->parent_ids);
 371 a440fac0 2018-09-06 stsp 
 372 a440fac0 2018-09-06 stsp 	return commit;
 373 a440fac0 2018-09-06 stsp }
 374 a440fac0 2018-09-06 stsp 
 375 a440fac0 2018-09-06 stsp const struct got_error *
 376 a440fac0 2018-09-06 stsp got_object_commit_add_parent(struct got_commit_object *commit,
 377 a440fac0 2018-09-06 stsp     const char *id_str)
 378 a440fac0 2018-09-06 stsp {
 379 a440fac0 2018-09-06 stsp 	const struct got_error *err = NULL;
 380 a440fac0 2018-09-06 stsp 	struct got_object_qid *qid;
 381 a440fac0 2018-09-06 stsp 
 382 5df4932d 2018-11-05 stsp 	err = got_object_qid_alloc_partial(&qid);
 383 5df4932d 2018-11-05 stsp 	if (err)
 384 7762fe12 2018-11-05 stsp 		return err;
 385 a440fac0 2018-09-06 stsp 
 386 ec242592 2022-04-22 thomas 	if (!got_parse_sha1_digest(qid->id.sha1, id_str)) {
 387 a440fac0 2018-09-06 stsp 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
 388 00eb6a1f 2019-07-15 stsp 		got_object_qid_free(qid);
 389 a440fac0 2018-09-06 stsp 		return err;
 390 a440fac0 2018-09-06 stsp 	}
 391 a440fac0 2018-09-06 stsp 
 392 dbdddfee 2021-06-23 naddy 	STAILQ_INSERT_TAIL(&commit->parent_ids, qid, entry);
 393 a440fac0 2018-09-06 stsp 	commit->nparents++;
 394 a440fac0 2018-09-06 stsp 
 395 a440fac0 2018-09-06 stsp 	return NULL;
 396 a440fac0 2018-09-06 stsp }
 397 a440fac0 2018-09-06 stsp 
 398 a440fac0 2018-09-06 stsp static const struct got_error *
 399 a440fac0 2018-09-06 stsp parse_gmtoff(time_t *gmtoff, const char *tzstr)
 400 a440fac0 2018-09-06 stsp {
 401 a440fac0 2018-09-06 stsp 	int sign = 1;
 402 a440fac0 2018-09-06 stsp 	const char *p = tzstr;
 403 a440fac0 2018-09-06 stsp 	time_t h, m;
 404 a440fac0 2018-09-06 stsp 
 405 a440fac0 2018-09-06 stsp 	*gmtoff = 0;
 406 a440fac0 2018-09-06 stsp 
 407 a440fac0 2018-09-06 stsp 	if (*p == '-')
 408 a440fac0 2018-09-06 stsp 		sign = -1;
 409 a440fac0 2018-09-06 stsp 	else if (*p != '+')
 410 a440fac0 2018-09-06 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 411 a440fac0 2018-09-06 stsp 	p++;
 412 a440fac0 2018-09-06 stsp 	if (!isdigit(*p) && !isdigit(*(p + 1)))
 413 a440fac0 2018-09-06 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 414 a440fac0 2018-09-06 stsp 	h = (((*p - '0') * 10) + (*(p + 1) - '0'));
 415 a440fac0 2018-09-06 stsp 
 416 a440fac0 2018-09-06 stsp 	p += 2;
 417 a440fac0 2018-09-06 stsp 	if (!isdigit(*p) && !isdigit(*(p + 1)))
 418 a440fac0 2018-09-06 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 419 a440fac0 2018-09-06 stsp 	m = ((*p - '0') * 10) + (*(p + 1) - '0');
 420 a440fac0 2018-09-06 stsp 
 421 a440fac0 2018-09-06 stsp 	*gmtoff = (h * 60 * 60 + m * 60) * sign;
 422 a440fac0 2018-09-06 stsp 	return NULL;
 423 a440fac0 2018-09-06 stsp }
 424 a440fac0 2018-09-06 stsp 
 425 a440fac0 2018-09-06 stsp static const struct got_error *
 426 ccb26ccd 2018-11-05 stsp parse_commit_time(time_t *time, time_t *gmtoff, char *committer)
 427 a440fac0 2018-09-06 stsp {
 428 a440fac0 2018-09-06 stsp 	const struct got_error *err = NULL;
 429 a440fac0 2018-09-06 stsp 	const char *errstr;
 430 a440fac0 2018-09-06 stsp 	char *space, *tzstr;
 431 a440fac0 2018-09-06 stsp 
 432 a440fac0 2018-09-06 stsp 	/* Parse and strip off trailing timezone indicator string. */
 433 a440fac0 2018-09-06 stsp 	space = strrchr(committer, ' ');
 434 a440fac0 2018-09-06 stsp 	if (space == NULL)
 435 a440fac0 2018-09-06 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 436 a440fac0 2018-09-06 stsp 	tzstr = strdup(space + 1);
 437 a440fac0 2018-09-06 stsp 	if (tzstr == NULL)
 438 638f9024 2019-05-13 stsp 		return got_error_from_errno("strdup");
 439 ccb26ccd 2018-11-05 stsp 	err = parse_gmtoff(gmtoff, tzstr);
 440 a440fac0 2018-09-06 stsp 	free(tzstr);
 441 b6b86fd1 2022-08-30 thomas 	if (err) {
 442 9dbd8627 2021-02-04 stsp 		if (err->code != GOT_ERR_BAD_OBJ_DATA)
 443 9dbd8627 2021-02-04 stsp 			return err;
 444 9dbd8627 2021-02-04 stsp 		/* Old versions of Git omitted the timestamp. */
 445 9dbd8627 2021-02-04 stsp 		*time = 0;
 446 9dbd8627 2021-02-04 stsp 		*gmtoff = 0;
 447 9dbd8627 2021-02-04 stsp 		return NULL;
 448 9dbd8627 2021-02-04 stsp 	}
 449 a440fac0 2018-09-06 stsp 	*space = '\0';
 450 a440fac0 2018-09-06 stsp 
 451 a440fac0 2018-09-06 stsp 	/* Timestamp is separated from committer name + email by space. */
 452 a440fac0 2018-09-06 stsp 	space = strrchr(committer, ' ');
 453 a440fac0 2018-09-06 stsp 	if (space == NULL)
 454 a440fac0 2018-09-06 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 455 a440fac0 2018-09-06 stsp 
 456 09867e48 2019-08-13 stsp 	/* Timestamp parsed here is expressed as UNIX timestamp (UTC). */
 457 ccb26ccd 2018-11-05 stsp 	*time = strtonum(space + 1, 0, INT64_MAX, &errstr);
 458 a440fac0 2018-09-06 stsp 	if (errstr)
 459 a440fac0 2018-09-06 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 460 a440fac0 2018-09-06 stsp 
 461 a440fac0 2018-09-06 stsp 	/* Strip off parsed time information, leaving just author and email. */
 462 a440fac0 2018-09-06 stsp 	*space = '\0';
 463 a440fac0 2018-09-06 stsp 
 464 a440fac0 2018-09-06 stsp 	return NULL;
 465 a440fac0 2018-09-06 stsp }
 466 a440fac0 2018-09-06 stsp 
 467 03fa71c8 2018-09-06 stsp void
 468 03fa71c8 2018-09-06 stsp got_object_commit_close(struct got_commit_object *commit)
 469 03fa71c8 2018-09-06 stsp {
 470 03fa71c8 2018-09-06 stsp 	if (commit->refcnt > 0) {
 471 03fa71c8 2018-09-06 stsp 		commit->refcnt--;
 472 03fa71c8 2018-09-06 stsp 		if (commit->refcnt > 0)
 473 03fa71c8 2018-09-06 stsp 			return;
 474 03fa71c8 2018-09-06 stsp 	}
 475 03fa71c8 2018-09-06 stsp 
 476 dd88155e 2019-06-29 stsp 	got_object_id_queue_free(&commit->parent_ids);
 477 03fa71c8 2018-09-06 stsp 	free(commit->tree_id);
 478 03fa71c8 2018-09-06 stsp 	free(commit->author);
 479 03fa71c8 2018-09-06 stsp 	free(commit->committer);
 480 03fa71c8 2018-09-06 stsp 	free(commit->logmsg);
 481 03fa71c8 2018-09-06 stsp 	free(commit);
 482 45d799e2 2018-12-23 stsp }
 483 45d799e2 2018-12-23 stsp 
 484 45d799e2 2018-12-23 stsp struct got_object_id *
 485 45d799e2 2018-12-23 stsp got_object_commit_get_tree_id(struct got_commit_object *commit)
 486 45d799e2 2018-12-23 stsp {
 487 45d799e2 2018-12-23 stsp 	return commit->tree_id;
 488 45d799e2 2018-12-23 stsp }
 489 45d799e2 2018-12-23 stsp 
 490 45d799e2 2018-12-23 stsp int
 491 45d799e2 2018-12-23 stsp got_object_commit_get_nparents(struct got_commit_object *commit)
 492 45d799e2 2018-12-23 stsp {
 493 45d799e2 2018-12-23 stsp 	return commit->nparents;
 494 03fa71c8 2018-09-06 stsp }
 495 03fa71c8 2018-09-06 stsp 
 496 45d799e2 2018-12-23 stsp const struct got_object_id_queue *
 497 45d799e2 2018-12-23 stsp got_object_commit_get_parent_ids(struct got_commit_object *commit)
 498 45d799e2 2018-12-23 stsp {
 499 45d799e2 2018-12-23 stsp 	return &commit->parent_ids;
 500 45d799e2 2018-12-23 stsp }
 501 45d799e2 2018-12-23 stsp 
 502 45d799e2 2018-12-23 stsp const char *
 503 45d799e2 2018-12-23 stsp got_object_commit_get_author(struct got_commit_object *commit)
 504 45d799e2 2018-12-23 stsp {
 505 45d799e2 2018-12-23 stsp 	return commit->author;
 506 45d799e2 2018-12-23 stsp }
 507 45d799e2 2018-12-23 stsp 
 508 45d799e2 2018-12-23 stsp time_t
 509 45d799e2 2018-12-23 stsp got_object_commit_get_author_time(struct got_commit_object *commit)
 510 45d799e2 2018-12-23 stsp {
 511 45d799e2 2018-12-23 stsp 	return commit->author_time;
 512 45d799e2 2018-12-23 stsp }
 513 45d799e2 2018-12-23 stsp 
 514 45d799e2 2018-12-23 stsp time_t got_object_commit_get_author_gmtoff(struct got_commit_object *commit)
 515 45d799e2 2018-12-23 stsp {
 516 45d799e2 2018-12-23 stsp 	return commit->author_gmtoff;
 517 45d799e2 2018-12-23 stsp }
 518 45d799e2 2018-12-23 stsp 
 519 45d799e2 2018-12-23 stsp const char *
 520 45d799e2 2018-12-23 stsp got_object_commit_get_committer(struct got_commit_object *commit)
 521 45d799e2 2018-12-23 stsp {
 522 45d799e2 2018-12-23 stsp 	return commit->committer;
 523 45d799e2 2018-12-23 stsp }
 524 45d799e2 2018-12-23 stsp 
 525 45d799e2 2018-12-23 stsp time_t
 526 45d799e2 2018-12-23 stsp got_object_commit_get_committer_time(struct got_commit_object *commit)
 527 45d799e2 2018-12-23 stsp {
 528 45d799e2 2018-12-23 stsp 	return commit->committer_time;
 529 45d799e2 2018-12-23 stsp }
 530 45d799e2 2018-12-23 stsp 
 531 45d799e2 2018-12-23 stsp time_t
 532 45d799e2 2018-12-23 stsp got_object_commit_get_committer_gmtoff(struct got_commit_object *commit)
 533 45d799e2 2018-12-23 stsp {
 534 45d799e2 2018-12-23 stsp 	return commit->committer_gmtoff;
 535 45d799e2 2018-12-23 stsp }
 536 5943eee2 2019-08-13 stsp 
 537 5943eee2 2019-08-13 stsp const struct got_error *
 538 5943eee2 2019-08-13 stsp got_object_commit_get_logmsg(char **logmsg, struct got_commit_object *commit)
 539 45d799e2 2018-12-23 stsp {
 540 5943eee2 2019-08-13 stsp 	const struct got_error *err = NULL;
 541 b9c41b54 2021-08-03 stsp 	const char *src;
 542 b9c41b54 2021-08-03 stsp 	char *dst;
 543 5943eee2 2019-08-13 stsp 	size_t len;
 544 5943eee2 2019-08-13 stsp 
 545 b9c41b54 2021-08-03 stsp 	len = strlen(commit->logmsg);
 546 b9c41b54 2021-08-03 stsp 	*logmsg = malloc(len + 2); /* leave room for a trailing \n and \0 */
 547 b9c41b54 2021-08-03 stsp 	if (*logmsg == NULL)
 548 b9c41b54 2021-08-03 stsp 		return got_error_from_errno("malloc");
 549 5943eee2 2019-08-13 stsp 
 550 b9c41b54 2021-08-03 stsp 	/*
 551 b9c41b54 2021-08-03 stsp 	 * Strip out unusual headers. Headers are separated from the commit
 552 b9c41b54 2021-08-03 stsp 	 * message body by a single empty line.
 553 b9c41b54 2021-08-03 stsp 	 */
 554 b9c41b54 2021-08-03 stsp 	src = commit->logmsg;
 555 b9c41b54 2021-08-03 stsp 	dst = *logmsg;
 556 b9c41b54 2021-08-03 stsp 	while (*src != '\0' && *src != '\n') {
 557 b9c41b54 2021-08-03 stsp 		int copy_header = 1, eol = 0;
 558 b9c41b54 2021-08-03 stsp 		if (strncmp(src, GOT_COMMIT_LABEL_TREE,
 559 b9c41b54 2021-08-03 stsp 		    strlen(GOT_COMMIT_LABEL_TREE)) != 0 &&
 560 b9c41b54 2021-08-03 stsp 		    strncmp(src, GOT_COMMIT_LABEL_AUTHOR,
 561 b9c41b54 2021-08-03 stsp 		    strlen(GOT_COMMIT_LABEL_AUTHOR)) != 0 &&
 562 b9c41b54 2021-08-03 stsp 		    strncmp(src, GOT_COMMIT_LABEL_PARENT,
 563 b9c41b54 2021-08-03 stsp 		    strlen(GOT_COMMIT_LABEL_PARENT)) != 0 &&
 564 b9c41b54 2021-08-03 stsp 		    strncmp(src, GOT_COMMIT_LABEL_COMMITTER,
 565 b9c41b54 2021-08-03 stsp 		    strlen(GOT_COMMIT_LABEL_COMMITTER)) != 0)
 566 b9c41b54 2021-08-03 stsp 			copy_header = 0;
 567 13555e04 2019-09-28 semarie 
 568 b9c41b54 2021-08-03 stsp 		while (*src != '\0' && !eol) {
 569 b9c41b54 2021-08-03 stsp 			if (copy_header) {
 570 b9c41b54 2021-08-03 stsp 				*dst = *src;
 571 b9c41b54 2021-08-03 stsp 				dst++;
 572 b9c41b54 2021-08-03 stsp 			}
 573 b9c41b54 2021-08-03 stsp 			if (*src == '\n')
 574 b9c41b54 2021-08-03 stsp 				eol = 1;
 575 b9c41b54 2021-08-03 stsp 			src++;
 576 5943eee2 2019-08-13 stsp 		}
 577 b9c41b54 2021-08-03 stsp 	}
 578 b9c41b54 2021-08-03 stsp 	*dst = '\0';
 579 13555e04 2019-09-28 semarie 
 580 b9c41b54 2021-08-03 stsp 	if (strlcat(*logmsg, src, len + 1) >= len + 1) {
 581 b9c41b54 2021-08-03 stsp 		err = got_error(GOT_ERR_NO_SPACE);
 582 b9c41b54 2021-08-03 stsp 		goto done;
 583 ef744db3 2020-08-27 stsp 	}
 584 ef744db3 2020-08-27 stsp 
 585 5943eee2 2019-08-13 stsp 	/* Trim redundant trailing whitespace. */
 586 5943eee2 2019-08-13 stsp 	len = strlen(*logmsg);
 587 5943eee2 2019-08-13 stsp 	while (len > 1 && isspace((unsigned char)(*logmsg)[len - 2]) &&
 588 5943eee2 2019-08-13 stsp 	    isspace((unsigned char)(*logmsg)[len - 1])) {
 589 5943eee2 2019-08-13 stsp 		(*logmsg)[len - 1] = '\0';
 590 5943eee2 2019-08-13 stsp 		len--;
 591 5943eee2 2019-08-13 stsp 	}
 592 b9c41b54 2021-08-03 stsp 
 593 b9c41b54 2021-08-03 stsp 	/* Append a trailing newline if missing. */
 594 b9c41b54 2021-08-03 stsp 	if (len > 0 && (*logmsg)[len - 1] != '\n') {
 595 b9c41b54 2021-08-03 stsp 		(*logmsg)[len] = '\n';
 596 b9c41b54 2021-08-03 stsp 		(*logmsg)[len + 1] = '\0';
 597 b9c41b54 2021-08-03 stsp 	}
 598 5943eee2 2019-08-13 stsp done:
 599 5943eee2 2019-08-13 stsp 	if (err) {
 600 5943eee2 2019-08-13 stsp 		free(*logmsg);
 601 5943eee2 2019-08-13 stsp 		*logmsg = NULL;
 602 5943eee2 2019-08-13 stsp 	}
 603 5943eee2 2019-08-13 stsp 	return err;
 604 24ea5512 2019-08-22 stsp }
 605 24ea5512 2019-08-22 stsp 
 606 24ea5512 2019-08-22 stsp const char *
 607 24ea5512 2019-08-22 stsp got_object_commit_get_logmsg_raw(struct got_commit_object *commit)
 608 24ea5512 2019-08-22 stsp {
 609 24ea5512 2019-08-22 stsp 	return commit->logmsg;
 610 45d799e2 2018-12-23 stsp }
 611 45d799e2 2018-12-23 stsp 
 612 a440fac0 2018-09-06 stsp const struct got_error *
 613 5e0b25c4 2018-12-24 stsp got_object_parse_commit(struct got_commit_object **commit, char *buf,
 614 5e0b25c4 2018-12-24 stsp     size_t len)
 615 a440fac0 2018-09-06 stsp {
 616 a440fac0 2018-09-06 stsp 	const struct got_error *err = NULL;
 617 a440fac0 2018-09-06 stsp 	char *s = buf;
 618 ff2a4428 2019-03-19 stsp 	size_t label_len;
 619 a440fac0 2018-09-06 stsp 	ssize_t remain = (ssize_t)len;
 620 4793d91b 2019-09-22 stsp 
 621 4793d91b 2019-09-22 stsp 	if (remain == 0)
 622 4793d91b 2019-09-22 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 623 230a42bd 2019-05-11 jcs 
 624 a440fac0 2018-09-06 stsp 	*commit = got_object_commit_alloc_partial();
 625 a440fac0 2018-09-06 stsp 	if (*commit == NULL)
 626 638f9024 2019-05-13 stsp 		return got_error_from_errno("got_object_commit_alloc_partial");
 627 a440fac0 2018-09-06 stsp 
 628 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_COMMIT_LABEL_TREE);
 629 ff2a4428 2019-03-19 stsp 	if (strncmp(s, GOT_COMMIT_LABEL_TREE, label_len) == 0) {
 630 ff2a4428 2019-03-19 stsp 		remain -= label_len;
 631 a440fac0 2018-09-06 stsp 		if (remain < SHA1_DIGEST_STRING_LENGTH) {
 632 a440fac0 2018-09-06 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 633 a440fac0 2018-09-06 stsp 			goto done;
 634 a440fac0 2018-09-06 stsp 		}
 635 ff2a4428 2019-03-19 stsp 		s += label_len;
 636 a440fac0 2018-09-06 stsp 		if (!got_parse_sha1_digest((*commit)->tree_id->sha1, s)) {
 637 a440fac0 2018-09-06 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 638 a440fac0 2018-09-06 stsp 			goto done;
 639 a440fac0 2018-09-06 stsp 		}
 640 a440fac0 2018-09-06 stsp 		remain -= SHA1_DIGEST_STRING_LENGTH;
 641 a440fac0 2018-09-06 stsp 		s += SHA1_DIGEST_STRING_LENGTH;
 642 a440fac0 2018-09-06 stsp 	} else {
 643 a440fac0 2018-09-06 stsp 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
 644 a440fac0 2018-09-06 stsp 		goto done;
 645 a440fac0 2018-09-06 stsp 	}
 646 a440fac0 2018-09-06 stsp 
 647 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_COMMIT_LABEL_PARENT);
 648 ff2a4428 2019-03-19 stsp 	while (strncmp(s, GOT_COMMIT_LABEL_PARENT, label_len) == 0) {
 649 ff2a4428 2019-03-19 stsp 		remain -= label_len;
 650 a440fac0 2018-09-06 stsp 		if (remain < SHA1_DIGEST_STRING_LENGTH) {
 651 a440fac0 2018-09-06 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 652 a440fac0 2018-09-06 stsp 			goto done;
 653 a440fac0 2018-09-06 stsp 		}
 654 ff2a4428 2019-03-19 stsp 		s += label_len;
 655 a440fac0 2018-09-06 stsp 		err = got_object_commit_add_parent(*commit, s);
 656 a440fac0 2018-09-06 stsp 		if (err)
 657 a440fac0 2018-09-06 stsp 			goto done;
 658 a440fac0 2018-09-06 stsp 
 659 a440fac0 2018-09-06 stsp 		remain -= SHA1_DIGEST_STRING_LENGTH;
 660 a440fac0 2018-09-06 stsp 		s += SHA1_DIGEST_STRING_LENGTH;
 661 a440fac0 2018-09-06 stsp 	}
 662 a440fac0 2018-09-06 stsp 
 663 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_COMMIT_LABEL_AUTHOR);
 664 ff2a4428 2019-03-19 stsp 	if (strncmp(s, GOT_COMMIT_LABEL_AUTHOR, label_len) == 0) {
 665 a440fac0 2018-09-06 stsp 		char *p;
 666 a440fac0 2018-09-06 stsp 		size_t slen;
 667 a440fac0 2018-09-06 stsp 
 668 ff2a4428 2019-03-19 stsp 		remain -= label_len;
 669 a440fac0 2018-09-06 stsp 		if (remain <= 0) {
 670 a440fac0 2018-09-06 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 671 a440fac0 2018-09-06 stsp 			goto done;
 672 a440fac0 2018-09-06 stsp 		}
 673 ff2a4428 2019-03-19 stsp 		s += label_len;
 674 dedbbd9d 2019-04-13 stsp 		p = memchr(s, '\n', remain);
 675 a440fac0 2018-09-06 stsp 		if (p == NULL) {
 676 a440fac0 2018-09-06 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 677 a440fac0 2018-09-06 stsp 			goto done;
 678 a440fac0 2018-09-06 stsp 		}
 679 a440fac0 2018-09-06 stsp 		*p = '\0';
 680 a440fac0 2018-09-06 stsp 		slen = strlen(s);
 681 ccb26ccd 2018-11-05 stsp 		err = parse_commit_time(&(*commit)->author_time,
 682 ccb26ccd 2018-11-05 stsp 		    &(*commit)->author_gmtoff, s);
 683 a440fac0 2018-09-06 stsp 		if (err)
 684 a440fac0 2018-09-06 stsp 			goto done;
 685 a440fac0 2018-09-06 stsp 		(*commit)->author = strdup(s);
 686 a440fac0 2018-09-06 stsp 		if ((*commit)->author == NULL) {
 687 638f9024 2019-05-13 stsp 			err = got_error_from_errno("strdup");
 688 a440fac0 2018-09-06 stsp 			goto done;
 689 a440fac0 2018-09-06 stsp 		}
 690 a440fac0 2018-09-06 stsp 		s += slen + 1;
 691 a440fac0 2018-09-06 stsp 		remain -= slen + 1;
 692 a440fac0 2018-09-06 stsp 	}
 693 a440fac0 2018-09-06 stsp 
 694 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_COMMIT_LABEL_COMMITTER);
 695 ff2a4428 2019-03-19 stsp 	if (strncmp(s, GOT_COMMIT_LABEL_COMMITTER, label_len) == 0) {
 696 a440fac0 2018-09-06 stsp 		char *p;
 697 a440fac0 2018-09-06 stsp 		size_t slen;
 698 a440fac0 2018-09-06 stsp 
 699 ff2a4428 2019-03-19 stsp 		remain -= label_len;
 700 a440fac0 2018-09-06 stsp 		if (remain <= 0) {
 701 a440fac0 2018-09-06 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 702 a440fac0 2018-09-06 stsp 			goto done;
 703 a440fac0 2018-09-06 stsp 		}
 704 ff2a4428 2019-03-19 stsp 		s += label_len;
 705 dedbbd9d 2019-04-13 stsp 		p = memchr(s, '\n', remain);
 706 a440fac0 2018-09-06 stsp 		if (p == NULL) {
 707 a440fac0 2018-09-06 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 708 a440fac0 2018-09-06 stsp 			goto done;
 709 a440fac0 2018-09-06 stsp 		}
 710 a440fac0 2018-09-06 stsp 		*p = '\0';
 711 a440fac0 2018-09-06 stsp 		slen = strlen(s);
 712 ccb26ccd 2018-11-05 stsp 		err = parse_commit_time(&(*commit)->committer_time,
 713 ccb26ccd 2018-11-05 stsp 		    &(*commit)->committer_gmtoff, s);
 714 a440fac0 2018-09-06 stsp 		if (err)
 715 a440fac0 2018-09-06 stsp 			goto done;
 716 a440fac0 2018-09-06 stsp 		(*commit)->committer = strdup(s);
 717 a440fac0 2018-09-06 stsp 		if ((*commit)->committer == NULL) {
 718 638f9024 2019-05-13 stsp 			err = got_error_from_errno("strdup");
 719 a440fac0 2018-09-06 stsp 			goto done;
 720 a440fac0 2018-09-06 stsp 		}
 721 a440fac0 2018-09-06 stsp 		s += slen + 1;
 722 a440fac0 2018-09-06 stsp 		remain -= slen + 1;
 723 a440fac0 2018-09-06 stsp 	}
 724 a440fac0 2018-09-06 stsp 
 725 a440fac0 2018-09-06 stsp 	(*commit)->logmsg = strndup(s, remain);
 726 a440fac0 2018-09-06 stsp 	if ((*commit)->logmsg == NULL) {
 727 638f9024 2019-05-13 stsp 		err = got_error_from_errno("strndup");
 728 a440fac0 2018-09-06 stsp 		goto done;
 729 a440fac0 2018-09-06 stsp 	}
 730 a440fac0 2018-09-06 stsp done:
 731 a440fac0 2018-09-06 stsp 	if (err) {
 732 a440fac0 2018-09-06 stsp 		got_object_commit_close(*commit);
 733 a440fac0 2018-09-06 stsp 		*commit = NULL;
 734 a440fac0 2018-09-06 stsp 	}
 735 a440fac0 2018-09-06 stsp 	return err;
 736 ed175427 2019-05-09 stsp }
 737 3efd8e31 2022-10-23 thomas 
 738 3efd8e31 2022-10-23 thomas const struct got_error *
 739 3efd8e31 2022-10-23 thomas got_object_read_commit(struct got_commit_object **commit, int fd,
 740 3efd8e31 2022-10-23 thomas     struct got_object_id *expected_id, size_t expected_size)
 741 3efd8e31 2022-10-23 thomas {
 742 3efd8e31 2022-10-23 thomas 	struct got_object *obj = NULL;
 743 3efd8e31 2022-10-23 thomas 	const struct got_error *err = NULL;
 744 3efd8e31 2022-10-23 thomas 	size_t len;
 745 3efd8e31 2022-10-23 thomas 	uint8_t *p;
 746 3efd8e31 2022-10-23 thomas 	struct got_inflate_checksum csum;
 747 3efd8e31 2022-10-23 thomas 	SHA1_CTX sha1_ctx;
 748 3efd8e31 2022-10-23 thomas 	struct got_object_id id;
 749 ed175427 2019-05-09 stsp 
 750 3efd8e31 2022-10-23 thomas 	SHA1Init(&sha1_ctx);
 751 3efd8e31 2022-10-23 thomas 	memset(&csum, 0, sizeof(csum));
 752 3efd8e31 2022-10-23 thomas 	csum.output_sha1 = &sha1_ctx;
 753 3efd8e31 2022-10-23 thomas 
 754 3efd8e31 2022-10-23 thomas 	err = got_inflate_to_mem_fd(&p, &len, NULL, &csum, expected_size, fd);
 755 3efd8e31 2022-10-23 thomas 	if (err)
 756 3efd8e31 2022-10-23 thomas 		return err;
 757 3efd8e31 2022-10-23 thomas 
 758 3efd8e31 2022-10-23 thomas 	SHA1Final(id.sha1, &sha1_ctx);
 759 3efd8e31 2022-10-23 thomas 	if (memcmp(expected_id->sha1, id.sha1, SHA1_DIGEST_LENGTH) != 0) {
 760 3efd8e31 2022-10-23 thomas 		char buf[SHA1_DIGEST_STRING_LENGTH];
 761 3efd8e31 2022-10-23 thomas 		err = got_error_fmt(GOT_ERR_OBJ_CSUM,
 762 3efd8e31 2022-10-23 thomas 		    "checksum failure for object %s",
 763 3efd8e31 2022-10-23 thomas 		    got_sha1_digest_to_str(expected_id->sha1, buf,
 764 3efd8e31 2022-10-23 thomas 		    sizeof(buf)));
 765 3efd8e31 2022-10-23 thomas 		goto done;
 766 3efd8e31 2022-10-23 thomas 	}
 767 3efd8e31 2022-10-23 thomas 
 768 3efd8e31 2022-10-23 thomas 	err = got_object_parse_header(&obj, p, len);
 769 3efd8e31 2022-10-23 thomas 	if (err)
 770 3efd8e31 2022-10-23 thomas 		goto done;
 771 3efd8e31 2022-10-23 thomas 
 772 3efd8e31 2022-10-23 thomas 	if (len < obj->hdrlen + obj->size) {
 773 3efd8e31 2022-10-23 thomas 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
 774 3efd8e31 2022-10-23 thomas 		goto done;
 775 3efd8e31 2022-10-23 thomas 	}
 776 3efd8e31 2022-10-23 thomas 
 777 3efd8e31 2022-10-23 thomas 	if (obj->type != GOT_OBJ_TYPE_COMMIT) {
 778 3efd8e31 2022-10-23 thomas 		err = got_error(GOT_ERR_OBJ_TYPE);
 779 3efd8e31 2022-10-23 thomas 		goto done;
 780 3efd8e31 2022-10-23 thomas 	}
 781 3efd8e31 2022-10-23 thomas 
 782 3efd8e31 2022-10-23 thomas 	/* Skip object header. */
 783 3efd8e31 2022-10-23 thomas 	len -= obj->hdrlen;
 784 3efd8e31 2022-10-23 thomas 	err = got_object_parse_commit(commit, p + obj->hdrlen, len);
 785 3efd8e31 2022-10-23 thomas done:
 786 3efd8e31 2022-10-23 thomas 	free(p);
 787 3efd8e31 2022-10-23 thomas 	if (obj)
 788 3efd8e31 2022-10-23 thomas 		got_object_close(obj);
 789 3efd8e31 2022-10-23 thomas 	return err;
 790 3efd8e31 2022-10-23 thomas }
 791 3efd8e31 2022-10-23 thomas 
 792 ed175427 2019-05-09 stsp void
 793 ed175427 2019-05-09 stsp got_object_tree_close(struct got_tree_object *tree)
 794 ed175427 2019-05-09 stsp {
 795 03fa71c8 2018-09-06 stsp 	if (tree->refcnt > 0) {
 796 03fa71c8 2018-09-06 stsp 		tree->refcnt--;
 797 03fa71c8 2018-09-06 stsp 		if (tree->refcnt > 0)
 798 03fa71c8 2018-09-06 stsp 			return;
 799 03fa71c8 2018-09-06 stsp 	}
 800 03fa71c8 2018-09-06 stsp 
 801 56e0773d 2019-11-28 stsp 	free(tree->entries);
 802 03fa71c8 2018-09-06 stsp 	free(tree);
 803 03fa71c8 2018-09-06 stsp }
 804 03fa71c8 2018-09-06 stsp 
 805 a440fac0 2018-09-06 stsp static const struct got_error *
 806 78e7b7b8 2022-05-19 thomas parse_tree_entry(struct got_parsed_tree_entry *pte, size_t *elen, char *buf,
 807 a440fac0 2018-09-06 stsp     size_t maxlen)
 808 a440fac0 2018-09-06 stsp {
 809 8914529d 2019-04-13 stsp 	char *p, *space;
 810 a0de39f3 2019-08-09 stsp 
 811 a0de39f3 2019-08-09 stsp 	*elen = 0;
 812 a440fac0 2018-09-06 stsp 
 813 9ef4ac16 2019-04-13 stsp 	*elen = strnlen(buf, maxlen) + 1;
 814 78e7b7b8 2022-05-19 thomas 	if (*elen > maxlen)
 815 a440fac0 2018-09-06 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 816 a440fac0 2018-09-06 stsp 
 817 dedbbd9d 2019-04-13 stsp 	space = memchr(buf, ' ', *elen);
 818 78e7b7b8 2022-05-19 thomas 	if (space == NULL || space <= buf)
 819 78e7b7b8 2022-05-19 thomas 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 820 78e7b7b8 2022-05-19 thomas 
 821 78e7b7b8 2022-05-19 thomas 	pte->mode = 0;
 822 8914529d 2019-04-13 stsp 	p = buf;
 823 8914529d 2019-04-13 stsp 	while (p < space) {
 824 78e7b7b8 2022-05-19 thomas 		if (*p < '0' && *p > '7')
 825 78e7b7b8 2022-05-19 thomas 			return got_error(GOT_ERR_BAD_OBJ_DATA);
 826 78e7b7b8 2022-05-19 thomas 		pte->mode <<= 3;
 827 78e7b7b8 2022-05-19 thomas 		pte->mode |= *p - '0';
 828 a440fac0 2018-09-06 stsp 		p++;
 829 a440fac0 2018-09-06 stsp 	}
 830 a440fac0 2018-09-06 stsp 
 831 78e7b7b8 2022-05-19 thomas 	if (*elen > maxlen || maxlen - *elen < SHA1_DIGEST_LENGTH)
 832 78e7b7b8 2022-05-19 thomas 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 833 78e7b7b8 2022-05-19 thomas 
 834 78e7b7b8 2022-05-19 thomas 	pte->name = space + 1;
 835 78e7b7b8 2022-05-19 thomas 	pte->namelen = strlen(pte->name);
 836 68bf1b1e 2018-11-07 stsp 	buf += *elen;
 837 78e7b7b8 2022-05-19 thomas 	pte->id = buf;
 838 a440fac0 2018-09-06 stsp 	*elen += SHA1_DIGEST_LENGTH;
 839 78e7b7b8 2022-05-19 thomas 	return NULL;
 840 a440fac0 2018-09-06 stsp }
 841 a440fac0 2018-09-06 stsp 
 842 78e7b7b8 2022-05-19 thomas static int
 843 78e7b7b8 2022-05-19 thomas pte_cmp(const void *pa, const void *pb)
 844 78e7b7b8 2022-05-19 thomas {
 845 78e7b7b8 2022-05-19 thomas 	const struct got_parsed_tree_entry *a = pa, *b = pb;
 846 78e7b7b8 2022-05-19 thomas 
 847 78e7b7b8 2022-05-19 thomas 	return got_path_cmp(a->name, b->name, a->namelen, b->namelen);
 848 78e7b7b8 2022-05-19 thomas }
 849 78e7b7b8 2022-05-19 thomas 
 850 a440fac0 2018-09-06 stsp const struct got_error *
 851 c77e00b3 2022-10-18 thomas got_object_parse_tree(struct got_parsed_tree_entry **entries, size_t *nentries,
 852 c77e00b3 2022-10-18 thomas     size_t *nentries_alloc, uint8_t *buf, size_t len)
 853 a440fac0 2018-09-06 stsp {
 854 3022d272 2019-11-14 stsp 	const struct got_error *err = NULL;
 855 c77e00b3 2022-10-18 thomas 	size_t remain = len;
 856 78e7b7b8 2022-05-19 thomas 	const size_t nalloc = 16;
 857 78e7b7b8 2022-05-19 thomas 	struct got_parsed_tree_entry *pte;
 858 78e7b7b8 2022-05-19 thomas 	int i;
 859 f5d3d7af 2019-02-05 stsp 
 860 3022d272 2019-11-14 stsp 	*nentries = 0;
 861 db1d3576 2019-10-04 stsp 	if (remain == 0)
 862 db1d3576 2019-10-04 stsp 		return NULL; /* tree is empty */
 863 db1d3576 2019-10-04 stsp 
 864 a440fac0 2018-09-06 stsp 	while (remain > 0) {
 865 a440fac0 2018-09-06 stsp 		size_t elen;
 866 a440fac0 2018-09-06 stsp 
 867 c77e00b3 2022-10-18 thomas 		if (*nentries >= *nentries_alloc) {
 868 c77e00b3 2022-10-18 thomas 			pte = recallocarray(*entries, *nentries_alloc,
 869 c77e00b3 2022-10-18 thomas 			    *nentries_alloc + nalloc, sizeof(**entries));
 870 78e7b7b8 2022-05-19 thomas 			if (pte == NULL) {
 871 78e7b7b8 2022-05-19 thomas 				err = got_error_from_errno("recallocarray");
 872 78e7b7b8 2022-05-19 thomas 				goto done;
 873 78e7b7b8 2022-05-19 thomas 			}
 874 78e7b7b8 2022-05-19 thomas 			*entries = pte;
 875 c77e00b3 2022-10-18 thomas 			*nentries_alloc += nalloc;
 876 78e7b7b8 2022-05-19 thomas 		}
 877 78e7b7b8 2022-05-19 thomas 
 878 78e7b7b8 2022-05-19 thomas 		pte = &(*entries)[*nentries];
 879 78e7b7b8 2022-05-19 thomas 		err = parse_tree_entry(pte, &elen, buf, remain);
 880 a440fac0 2018-09-06 stsp 		if (err)
 881 f5d3d7af 2019-02-05 stsp 			goto done;
 882 a440fac0 2018-09-06 stsp 		buf += elen;
 883 a440fac0 2018-09-06 stsp 		remain -= elen;
 884 3022d272 2019-11-14 stsp 		(*nentries)++;
 885 a440fac0 2018-09-06 stsp 	}
 886 a440fac0 2018-09-06 stsp 
 887 a440fac0 2018-09-06 stsp 	if (remain != 0) {
 888 f5d3d7af 2019-02-05 stsp 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
 889 f5d3d7af 2019-02-05 stsp 		goto done;
 890 a440fac0 2018-09-06 stsp 	}
 891 78e7b7b8 2022-05-19 thomas 
 892 78e7b7b8 2022-05-19 thomas 	if (*nentries > 1) {
 893 78e7b7b8 2022-05-19 thomas 		mergesort(*entries, *nentries, sizeof(**entries), pte_cmp);
 894 78e7b7b8 2022-05-19 thomas 
 895 78e7b7b8 2022-05-19 thomas 		for (i = 0; i < *nentries - 1; i++) {
 896 78e7b7b8 2022-05-19 thomas 			struct got_parsed_tree_entry *prev = &(*entries)[i];
 897 78e7b7b8 2022-05-19 thomas 			pte = &(*entries)[i + 1];
 898 78e7b7b8 2022-05-19 thomas 			if (got_path_cmp(prev->name, pte->name,
 899 78e7b7b8 2022-05-19 thomas 			    prev->namelen, pte->namelen) == 0) {
 900 78e7b7b8 2022-05-19 thomas 				err = got_error(GOT_ERR_TREE_DUP_ENTRY);
 901 78e7b7b8 2022-05-19 thomas 				break;
 902 78e7b7b8 2022-05-19 thomas 			}
 903 78e7b7b8 2022-05-19 thomas 		}
 904 78e7b7b8 2022-05-19 thomas 	}
 905 3022d272 2019-11-14 stsp done:
 906 c77e00b3 2022-10-18 thomas 	if (err)
 907 3022d272 2019-11-14 stsp 		*nentries = 0;
 908 f5d3d7af 2019-02-05 stsp 	return err;
 909 b64b1f95 2020-01-06 stsp }
 910 b64b1f95 2020-01-06 stsp 
 911 3efd8e31 2022-10-23 thomas const struct got_error *
 912 3efd8e31 2022-10-23 thomas got_object_read_tree(struct got_parsed_tree_entry **entries, size_t *nentries,
 913 3efd8e31 2022-10-23 thomas     size_t *nentries_alloc, uint8_t **p, int fd,
 914 3efd8e31 2022-10-23 thomas     struct got_object_id *expected_id)
 915 3efd8e31 2022-10-23 thomas {
 916 3efd8e31 2022-10-23 thomas 	const struct got_error *err = NULL;
 917 3efd8e31 2022-10-23 thomas 	struct got_object *obj = NULL;
 918 3efd8e31 2022-10-23 thomas 	size_t len;
 919 3efd8e31 2022-10-23 thomas 	struct got_inflate_checksum csum;
 920 3efd8e31 2022-10-23 thomas 	SHA1_CTX sha1_ctx;
 921 3efd8e31 2022-10-23 thomas 	struct got_object_id id;
 922 3efd8e31 2022-10-23 thomas 
 923 3efd8e31 2022-10-23 thomas 	SHA1Init(&sha1_ctx);
 924 3efd8e31 2022-10-23 thomas 	memset(&csum, 0, sizeof(csum));
 925 3efd8e31 2022-10-23 thomas 	csum.output_sha1 = &sha1_ctx;
 926 3efd8e31 2022-10-23 thomas 
 927 3efd8e31 2022-10-23 thomas 	err = got_inflate_to_mem_fd(p, &len, NULL, &csum, 0, fd);
 928 3efd8e31 2022-10-23 thomas 	if (err)
 929 3efd8e31 2022-10-23 thomas 		return err;
 930 3efd8e31 2022-10-23 thomas 
 931 3efd8e31 2022-10-23 thomas 	SHA1Final(id.sha1, &sha1_ctx);
 932 3efd8e31 2022-10-23 thomas 	if (memcmp(expected_id->sha1, id.sha1, SHA1_DIGEST_LENGTH) != 0) {
 933 3efd8e31 2022-10-23 thomas 		char buf[SHA1_DIGEST_STRING_LENGTH];
 934 3efd8e31 2022-10-23 thomas 		err = got_error_fmt(GOT_ERR_OBJ_CSUM,
 935 3efd8e31 2022-10-23 thomas 		    "checksum failure for object %s",
 936 3efd8e31 2022-10-23 thomas 		    got_sha1_digest_to_str(expected_id->sha1, buf,
 937 3efd8e31 2022-10-23 thomas 		    sizeof(buf)));
 938 3efd8e31 2022-10-23 thomas 		goto done;
 939 3efd8e31 2022-10-23 thomas 	}
 940 3efd8e31 2022-10-23 thomas 
 941 3efd8e31 2022-10-23 thomas 	err = got_object_parse_header(&obj, *p, len);
 942 3efd8e31 2022-10-23 thomas 	if (err)
 943 3efd8e31 2022-10-23 thomas 		goto done;
 944 3efd8e31 2022-10-23 thomas 
 945 3efd8e31 2022-10-23 thomas 	if (len < obj->hdrlen + obj->size) {
 946 3efd8e31 2022-10-23 thomas 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
 947 3efd8e31 2022-10-23 thomas 		goto done;
 948 3efd8e31 2022-10-23 thomas 	}
 949 3efd8e31 2022-10-23 thomas 
 950 3efd8e31 2022-10-23 thomas 	/* Skip object header. */
 951 3efd8e31 2022-10-23 thomas 	len -= obj->hdrlen;
 952 3efd8e31 2022-10-23 thomas 	err = got_object_parse_tree(entries, nentries, nentries_alloc,
 953 3efd8e31 2022-10-23 thomas 	    *p + obj->hdrlen, len);
 954 3efd8e31 2022-10-23 thomas done:
 955 3efd8e31 2022-10-23 thomas 	if (obj)
 956 3efd8e31 2022-10-23 thomas 		got_object_close(obj);
 957 3efd8e31 2022-10-23 thomas 	return err;
 958 3efd8e31 2022-10-23 thomas }
 959 3efd8e31 2022-10-23 thomas 
 960 b64b1f95 2020-01-06 stsp void
 961 f4a881ce 2018-11-17 stsp got_object_tag_close(struct got_tag_object *tag)
 962 f4a881ce 2018-11-17 stsp {
 963 ca0d469c 2019-08-13 stsp 	if (tag->refcnt > 0) {
 964 ca0d469c 2019-08-13 stsp 		tag->refcnt--;
 965 ca0d469c 2019-08-13 stsp 		if (tag->refcnt > 0)
 966 ca0d469c 2019-08-13 stsp 			return;
 967 ca0d469c 2019-08-13 stsp 	}
 968 ca0d469c 2019-08-13 stsp 
 969 f4a881ce 2018-11-17 stsp 	free(tag->tag);
 970 f4a881ce 2018-11-17 stsp 	free(tag->tagger);
 971 f4a881ce 2018-11-17 stsp 	free(tag->tagmsg);
 972 f4a881ce 2018-11-17 stsp 	free(tag);
 973 f4a881ce 2018-11-17 stsp }
 974 f4a881ce 2018-11-17 stsp 
 975 ad242220 2018-09-08 stsp const struct got_error *
 976 f4a881ce 2018-11-17 stsp got_object_parse_tag(struct got_tag_object **tag, uint8_t *buf, size_t len)
 977 f4a881ce 2018-11-17 stsp {
 978 f4a881ce 2018-11-17 stsp 	const struct got_error *err = NULL;
 979 f4a881ce 2018-11-17 stsp 	size_t remain = len;
 980 f4a881ce 2018-11-17 stsp 	char *s = buf;
 981 ff2a4428 2019-03-19 stsp 	size_t label_len;
 982 4793d91b 2019-09-22 stsp 
 983 4793d91b 2019-09-22 stsp 	if (remain == 0)
 984 4793d91b 2019-09-22 stsp 		return got_error(GOT_ERR_BAD_OBJ_DATA);
 985 f4a881ce 2018-11-17 stsp 
 986 f4a881ce 2018-11-17 stsp 	*tag = calloc(1, sizeof(**tag));
 987 f4a881ce 2018-11-17 stsp 	if (*tag == NULL)
 988 638f9024 2019-05-13 stsp 		return got_error_from_errno("calloc");
 989 f4a881ce 2018-11-17 stsp 
 990 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_TAG_LABEL_OBJECT);
 991 ff2a4428 2019-03-19 stsp 	if (strncmp(s, GOT_TAG_LABEL_OBJECT, label_len) == 0) {
 992 ff2a4428 2019-03-19 stsp 		remain -= label_len;
 993 f4a881ce 2018-11-17 stsp 		if (remain < SHA1_DIGEST_STRING_LENGTH) {
 994 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
 995 f4a881ce 2018-11-17 stsp 			goto done;
 996 f4a881ce 2018-11-17 stsp 		}
 997 ff2a4428 2019-03-19 stsp 		s += label_len;
 998 f4a881ce 2018-11-17 stsp 		if (!got_parse_sha1_digest((*tag)->id.sha1, s)) {
 999 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1000 f4a881ce 2018-11-17 stsp 			goto done;
1001 f4a881ce 2018-11-17 stsp 		}
1002 f4a881ce 2018-11-17 stsp 		remain -= SHA1_DIGEST_STRING_LENGTH;
1003 f4a881ce 2018-11-17 stsp 		s += SHA1_DIGEST_STRING_LENGTH;
1004 f4a881ce 2018-11-17 stsp 	} else {
1005 f4a881ce 2018-11-17 stsp 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
1006 f4a881ce 2018-11-17 stsp 		goto done;
1007 f4a881ce 2018-11-17 stsp 	}
1008 f4a881ce 2018-11-17 stsp 
1009 f4a881ce 2018-11-17 stsp 	if (remain <= 0) {
1010 f4a881ce 2018-11-17 stsp 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
1011 f4a881ce 2018-11-17 stsp 		goto done;
1012 f4a881ce 2018-11-17 stsp 	}
1013 f4a881ce 2018-11-17 stsp 
1014 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_TAG_LABEL_TYPE);
1015 ff2a4428 2019-03-19 stsp 	if (strncmp(s, GOT_TAG_LABEL_TYPE, label_len) == 0) {
1016 ff2a4428 2019-03-19 stsp 		remain -= label_len;
1017 f4a881ce 2018-11-17 stsp 		if (remain <= 0) {
1018 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1019 f4a881ce 2018-11-17 stsp 			goto done;
1020 f4a881ce 2018-11-17 stsp 		}
1021 ff2a4428 2019-03-19 stsp 		s += label_len;
1022 ff2a4428 2019-03-19 stsp 		if (strncmp(s, GOT_OBJ_LABEL_COMMIT,
1023 ff2a4428 2019-03-19 stsp 		    strlen(GOT_OBJ_LABEL_COMMIT)) == 0) {
1024 f4a881ce 2018-11-17 stsp 			(*tag)->obj_type = GOT_OBJ_TYPE_COMMIT;
1025 ff2a4428 2019-03-19 stsp 			label_len = strlen(GOT_OBJ_LABEL_COMMIT);
1026 ff2a4428 2019-03-19 stsp 			s += label_len;
1027 ff2a4428 2019-03-19 stsp 			remain -= label_len;
1028 ff2a4428 2019-03-19 stsp 		} else if (strncmp(s, GOT_OBJ_LABEL_TREE,
1029 ff2a4428 2019-03-19 stsp 		    strlen(GOT_OBJ_LABEL_TREE)) == 0) {
1030 f4a881ce 2018-11-17 stsp 			(*tag)->obj_type = GOT_OBJ_TYPE_TREE;
1031 ff2a4428 2019-03-19 stsp 			label_len = strlen(GOT_OBJ_LABEL_TREE);
1032 ff2a4428 2019-03-19 stsp 			s += label_len;
1033 ff2a4428 2019-03-19 stsp 			remain -= label_len;
1034 ff2a4428 2019-03-19 stsp 		} else if (strncmp(s, GOT_OBJ_LABEL_BLOB,
1035 ff2a4428 2019-03-19 stsp 		    strlen(GOT_OBJ_LABEL_BLOB)) == 0) {
1036 f4a881ce 2018-11-17 stsp 			(*tag)->obj_type = GOT_OBJ_TYPE_BLOB;
1037 ff2a4428 2019-03-19 stsp 			label_len = strlen(GOT_OBJ_LABEL_BLOB);
1038 ff2a4428 2019-03-19 stsp 			s += label_len;
1039 ff2a4428 2019-03-19 stsp 			remain -= label_len;
1040 ff2a4428 2019-03-19 stsp 		} else if (strncmp(s, GOT_OBJ_LABEL_TAG,
1041 ff2a4428 2019-03-19 stsp 		    strlen(GOT_OBJ_LABEL_TAG)) == 0) {
1042 f4a881ce 2018-11-17 stsp 			(*tag)->obj_type = GOT_OBJ_TYPE_TAG;
1043 ff2a4428 2019-03-19 stsp 			label_len = strlen(GOT_OBJ_LABEL_TAG);
1044 ff2a4428 2019-03-19 stsp 			s += label_len;
1045 ff2a4428 2019-03-19 stsp 			remain -= label_len;
1046 f4a881ce 2018-11-17 stsp 		} else {
1047 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1048 f4a881ce 2018-11-17 stsp 			goto done;
1049 f4a881ce 2018-11-17 stsp 		}
1050 f4a881ce 2018-11-17 stsp 
1051 f4a881ce 2018-11-17 stsp 		if (remain <= 0 || *s != '\n') {
1052 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1053 f4a881ce 2018-11-17 stsp 			goto done;
1054 f4a881ce 2018-11-17 stsp 		}
1055 f4a881ce 2018-11-17 stsp 		s++;
1056 f4a881ce 2018-11-17 stsp 		remain--;
1057 f4a881ce 2018-11-17 stsp 		if (remain <= 0) {
1058 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1059 f4a881ce 2018-11-17 stsp 			goto done;
1060 f4a881ce 2018-11-17 stsp 		}
1061 f4a881ce 2018-11-17 stsp 	} else {
1062 f4a881ce 2018-11-17 stsp 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
1063 f4a881ce 2018-11-17 stsp 		goto done;
1064 f4a881ce 2018-11-17 stsp 	}
1065 f4a881ce 2018-11-17 stsp 
1066 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_TAG_LABEL_TAG);
1067 ff2a4428 2019-03-19 stsp 	if (strncmp(s, GOT_TAG_LABEL_TAG, label_len) == 0) {
1068 f4a881ce 2018-11-17 stsp 		char *p;
1069 f4a881ce 2018-11-17 stsp 		size_t slen;
1070 ff2a4428 2019-03-19 stsp 		remain -= label_len;
1071 f4a881ce 2018-11-17 stsp 		if (remain <= 0) {
1072 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1073 f4a881ce 2018-11-17 stsp 			goto done;
1074 f4a881ce 2018-11-17 stsp 		}
1075 ff2a4428 2019-03-19 stsp 		s += label_len;
1076 dedbbd9d 2019-04-13 stsp 		p = memchr(s, '\n', remain);
1077 f4a881ce 2018-11-17 stsp 		if (p == NULL) {
1078 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1079 f4a881ce 2018-11-17 stsp 			goto done;
1080 f4a881ce 2018-11-17 stsp 		}
1081 f4a881ce 2018-11-17 stsp 		*p = '\0';
1082 f4a881ce 2018-11-17 stsp 		slen = strlen(s);
1083 f4a881ce 2018-11-17 stsp 		(*tag)->tag = strndup(s, slen);
1084 f4a881ce 2018-11-17 stsp 		if ((*tag)->tag == NULL) {
1085 638f9024 2019-05-13 stsp 			err = got_error_from_errno("strndup");
1086 f4a881ce 2018-11-17 stsp 			goto done;
1087 f4a881ce 2018-11-17 stsp 		}
1088 f4a881ce 2018-11-17 stsp 		s += slen + 1;
1089 f4a881ce 2018-11-17 stsp 		remain -= slen + 1;
1090 f4a881ce 2018-11-17 stsp 		if (remain <= 0) {
1091 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1092 f4a881ce 2018-11-17 stsp 			goto done;
1093 f4a881ce 2018-11-17 stsp 		}
1094 f4a881ce 2018-11-17 stsp 	} else {
1095 f4a881ce 2018-11-17 stsp 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
1096 f4a881ce 2018-11-17 stsp 		goto done;
1097 f4a881ce 2018-11-17 stsp 	}
1098 f4a881ce 2018-11-17 stsp 
1099 ff2a4428 2019-03-19 stsp 	label_len = strlen(GOT_TAG_LABEL_TAGGER);
1100 ff2a4428 2019-03-19 stsp 	if (strncmp(s, GOT_TAG_LABEL_TAGGER, label_len) == 0) {
1101 f4a881ce 2018-11-17 stsp 		char *p;
1102 f4a881ce 2018-11-17 stsp 		size_t slen;
1103 f4a881ce 2018-11-17 stsp 
1104 ff2a4428 2019-03-19 stsp 		remain -= label_len;
1105 f4a881ce 2018-11-17 stsp 		if (remain <= 0) {
1106 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1107 f4a881ce 2018-11-17 stsp 			goto done;
1108 f4a881ce 2018-11-17 stsp 		}
1109 ff2a4428 2019-03-19 stsp 		s += label_len;
1110 dedbbd9d 2019-04-13 stsp 		p = memchr(s, '\n', remain);
1111 f4a881ce 2018-11-17 stsp 		if (p == NULL) {
1112 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1113 f4a881ce 2018-11-17 stsp 			goto done;
1114 f4a881ce 2018-11-17 stsp 		}
1115 f4a881ce 2018-11-17 stsp 		*p = '\0';
1116 f4a881ce 2018-11-17 stsp 		slen = strlen(s);
1117 f4a881ce 2018-11-17 stsp 		err = parse_commit_time(&(*tag)->tagger_time,
1118 f4a881ce 2018-11-17 stsp 		    &(*tag)->tagger_gmtoff, s);
1119 f4a881ce 2018-11-17 stsp 		if (err)
1120 f4a881ce 2018-11-17 stsp 			goto done;
1121 f4a881ce 2018-11-17 stsp 		(*tag)->tagger = strdup(s);
1122 f4a881ce 2018-11-17 stsp 		if ((*tag)->tagger == NULL) {
1123 638f9024 2019-05-13 stsp 			err = got_error_from_errno("strdup");
1124 f4a881ce 2018-11-17 stsp 			goto done;
1125 f4a881ce 2018-11-17 stsp 		}
1126 f4a881ce 2018-11-17 stsp 		s += slen + 1;
1127 f4a881ce 2018-11-17 stsp 		remain -= slen + 1;
1128 5a8b373c 2020-12-18 stsp 		if (remain < 0) {
1129 f4a881ce 2018-11-17 stsp 			err = got_error(GOT_ERR_BAD_OBJ_DATA);
1130 f4a881ce 2018-11-17 stsp 			goto done;
1131 f4a881ce 2018-11-17 stsp 		}
1132 f4a881ce 2018-11-17 stsp 	} else {
1133 e0e55b50 2019-02-01 stsp 		/* Some old tags in the Linux git repo have no tagger. */
1134 e0e55b50 2019-02-01 stsp 		(*tag)->tagger = strdup("");
1135 e0e55b50 2019-02-01 stsp 		if ((*tag)->tagger == NULL) {
1136 638f9024 2019-05-13 stsp 			err = got_error_from_errno("strdup");
1137 e0e55b50 2019-02-01 stsp 			goto done;
1138 e0e55b50 2019-02-01 stsp 		}
1139 f4a881ce 2018-11-17 stsp 	}
1140 f4a881ce 2018-11-17 stsp 
1141 f4a881ce 2018-11-17 stsp 	(*tag)->tagmsg = strndup(s, remain);
1142 f4a881ce 2018-11-17 stsp 	if ((*tag)->tagmsg == NULL) {
1143 638f9024 2019-05-13 stsp 		err = got_error_from_errno("strndup");
1144 f4a881ce 2018-11-17 stsp 		goto done;
1145 f4a881ce 2018-11-17 stsp 	}
1146 f4a881ce 2018-11-17 stsp done:
1147 f4a881ce 2018-11-17 stsp 	if (err) {
1148 f4a881ce 2018-11-17 stsp 		got_object_tag_close(*tag);
1149 f4a881ce 2018-11-17 stsp 		*tag = NULL;
1150 3efd8e31 2022-10-23 thomas 	}
1151 3efd8e31 2022-10-23 thomas 	return err;
1152 3efd8e31 2022-10-23 thomas }
1153 3efd8e31 2022-10-23 thomas 
1154 3efd8e31 2022-10-23 thomas const struct got_error *
1155 3efd8e31 2022-10-23 thomas got_object_read_tag(struct got_tag_object **tag, int fd, 
1156 3efd8e31 2022-10-23 thomas     struct got_object_id *expected_id, size_t expected_size)
1157 3efd8e31 2022-10-23 thomas {
1158 3efd8e31 2022-10-23 thomas 	const struct got_error *err = NULL;
1159 3efd8e31 2022-10-23 thomas 	struct got_object *obj = NULL;
1160 3efd8e31 2022-10-23 thomas 	size_t len;
1161 3efd8e31 2022-10-23 thomas 	uint8_t *p;
1162 3efd8e31 2022-10-23 thomas 	struct got_inflate_checksum csum;
1163 3efd8e31 2022-10-23 thomas 	SHA1_CTX sha1_ctx;
1164 3efd8e31 2022-10-23 thomas 	struct got_object_id id;
1165 3efd8e31 2022-10-23 thomas 
1166 3efd8e31 2022-10-23 thomas 	SHA1Init(&sha1_ctx);
1167 3efd8e31 2022-10-23 thomas 	memset(&csum, 0, sizeof(csum));
1168 3efd8e31 2022-10-23 thomas 	csum.output_sha1 = &sha1_ctx;
1169 3efd8e31 2022-10-23 thomas 
1170 3efd8e31 2022-10-23 thomas 	err = got_inflate_to_mem_fd(&p, &len, NULL, &csum,
1171 3efd8e31 2022-10-23 thomas 	    expected_size, fd);
1172 3efd8e31 2022-10-23 thomas 	if (err)
1173 3efd8e31 2022-10-23 thomas 		return err;
1174 3efd8e31 2022-10-23 thomas 
1175 3efd8e31 2022-10-23 thomas 	SHA1Final(id.sha1, &sha1_ctx);
1176 3efd8e31 2022-10-23 thomas 	if (memcmp(expected_id->sha1, id.sha1, SHA1_DIGEST_LENGTH) != 0) {
1177 3efd8e31 2022-10-23 thomas 		char buf[SHA1_DIGEST_STRING_LENGTH];
1178 3efd8e31 2022-10-23 thomas 		err = got_error_fmt(GOT_ERR_OBJ_CSUM,
1179 3efd8e31 2022-10-23 thomas 		    "checksum failure for object %s",
1180 3efd8e31 2022-10-23 thomas 		    got_sha1_digest_to_str(expected_id->sha1, buf,
1181 3efd8e31 2022-10-23 thomas 		    sizeof(buf)));
1182 3efd8e31 2022-10-23 thomas 		goto done;
1183 f4a881ce 2018-11-17 stsp 	}
1184 3efd8e31 2022-10-23 thomas 
1185 3efd8e31 2022-10-23 thomas 	err = got_object_parse_header(&obj, p, len);
1186 3efd8e31 2022-10-23 thomas 	if (err)
1187 3efd8e31 2022-10-23 thomas 		goto done;
1188 3efd8e31 2022-10-23 thomas 
1189 3efd8e31 2022-10-23 thomas 	if (len < obj->hdrlen + obj->size) {
1190 3efd8e31 2022-10-23 thomas 		err = got_error(GOT_ERR_BAD_OBJ_DATA);
1191 3efd8e31 2022-10-23 thomas 		goto done;
1192 3efd8e31 2022-10-23 thomas 	}
1193 3efd8e31 2022-10-23 thomas 
1194 3efd8e31 2022-10-23 thomas 	/* Skip object header. */
1195 3efd8e31 2022-10-23 thomas 	len -= obj->hdrlen;
1196 3efd8e31 2022-10-23 thomas 	err = got_object_parse_tag(tag, p + obj->hdrlen, len);
1197 3efd8e31 2022-10-23 thomas done:
1198 3efd8e31 2022-10-23 thomas 	free(p);
1199 3efd8e31 2022-10-23 thomas 	if (obj)
1200 3efd8e31 2022-10-23 thomas 		got_object_close(obj);
1201 f4a881ce 2018-11-17 stsp 	return err;
1202 f4a881ce 2018-11-17 stsp }
1203 f4a881ce 2018-11-17 stsp 
1204 f4a881ce 2018-11-17 stsp const struct got_error *
1205 ad242220 2018-09-08 stsp got_read_file_to_mem(uint8_t **outbuf, size_t *outlen, FILE *f)
1206 a440fac0 2018-09-06 stsp {
1207 a440fac0 2018-09-06 stsp 	const struct got_error *err = NULL;
1208 a440fac0 2018-09-06 stsp 	static const size_t blocksize = 512;
1209 a440fac0 2018-09-06 stsp 	size_t n, total, remain;
1210 a440fac0 2018-09-06 stsp 	uint8_t *buf;
1211 a440fac0 2018-09-06 stsp 
1212 a440fac0 2018-09-06 stsp 	*outbuf = NULL;
1213 a440fac0 2018-09-06 stsp 	*outlen = 0;
1214 a440fac0 2018-09-06 stsp 
1215 a440fac0 2018-09-06 stsp 	buf = malloc(blocksize);
1216 a440fac0 2018-09-06 stsp 	if (buf == NULL)
1217 638f9024 2019-05-13 stsp 		return got_error_from_errno("malloc");
1218 a440fac0 2018-09-06 stsp 
1219 a440fac0 2018-09-06 stsp 	remain = blocksize;
1220 a440fac0 2018-09-06 stsp 	total = 0;
1221 656b1f76 2019-05-11 jcs 	for (;;) {
1222 a440fac0 2018-09-06 stsp 		if (remain == 0) {
1223 a440fac0 2018-09-06 stsp 			uint8_t *newbuf;
1224 a440fac0 2018-09-06 stsp 			newbuf = reallocarray(buf, 1, total + blocksize);
1225 a440fac0 2018-09-06 stsp 			if (newbuf == NULL) {
1226 638f9024 2019-05-13 stsp 				err = got_error_from_errno("reallocarray");
1227 a440fac0 2018-09-06 stsp 				goto done;
1228 a440fac0 2018-09-06 stsp 			}
1229 a440fac0 2018-09-06 stsp 			buf = newbuf;
1230 a440fac0 2018-09-06 stsp 			remain += blocksize;
1231 a440fac0 2018-09-06 stsp 		}
1232 a440fac0 2018-09-06 stsp 		n = fread(buf + total, 1, remain, f);
1233 a440fac0 2018-09-06 stsp 		if (n == 0) {
1234 a440fac0 2018-09-06 stsp 			if (ferror(f)) {
1235 a440fac0 2018-09-06 stsp 				err = got_ferror(f, GOT_ERR_IO);
1236 a440fac0 2018-09-06 stsp 				goto done;
1237 a440fac0 2018-09-06 stsp 			}
1238 a440fac0 2018-09-06 stsp 			break; /* EOF */
1239 a440fac0 2018-09-06 stsp 		}
1240 a440fac0 2018-09-06 stsp 		remain -= n;
1241 a440fac0 2018-09-06 stsp 		total += n;
1242 a440fac0 2018-09-06 stsp 	};
1243 a440fac0 2018-09-06 stsp 
1244 a440fac0 2018-09-06 stsp done:
1245 a440fac0 2018-09-06 stsp 	if (err == NULL) {
1246 a440fac0 2018-09-06 stsp 		*outbuf = buf;
1247 a440fac0 2018-09-06 stsp 		*outlen = total;
1248 a440fac0 2018-09-06 stsp 	} else
1249 a440fac0 2018-09-06 stsp 		free(buf);
1250 ad242220 2018-09-08 stsp 	return err;
1251 a440fac0 2018-09-06 stsp }