1 /*
2  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <sys/queue.h>
18 #include <sys/stat.h>
19 
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <sha1.h>
24 
25 #include "got_error.h"
26 
27 #include "got_fileindex_priv.h"
28 
29 const struct got_error *
30 got_fileindex_entry_open(struct got_fileindex_entry **entry, const char *path,
31     uint8_t *blob_sha1)
32 {
33 	struct stat sb;
34 	size_t len;
35 
36 	if (lstat(path, &sb) != 0)
37 		return got_error_from_errno();
38 
39 	*entry = calloc(1, sizeof(**entry));
40 	if (*entry == NULL)
41 		return got_error(GOT_ERR_NO_MEM);
42 
43 	(*entry)->path = strdup(path);
44 	if ((*entry)->path == NULL) {
45 		free(*entry);
46 		*entry = NULL;
47 		return got_error(GOT_ERR_NO_MEM);
48 	}
49 	
50 	(*entry)->ctime_sec = sb.st_ctime;
51 	(*entry)->ctime_nsec = sb.st_ctimensec;
52 	(*entry)->mtime_sec = sb.st_mtime;
53 	(*entry)->mtime_nsec = sb.st_mtimensec;
54 	(*entry)->uid = sb.st_uid;
55 	(*entry)->gid = sb.st_gid;
56 	(*entry)->size = (sb.st_size & 0xffffffff);
57 	if (sb.st_mode & S_IFLNK)
58 		(*entry)->mode = GOT_INDEX_ENTRY_MODE_SYMLINK;
59 	else
60 		(*entry)->mode = GOT_INDEX_ENTRY_MODE_REGULAR_FILE;
61 	(*entry)->mode |= ((sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO)) <<
62 	    GOT_INDEX_ENTRY_MODE_PERMS_SHIFT);
63 	memcpy((*entry)->blob_sha1, blob_sha1, SHA1_DIGEST_LENGTH);
64 	len = strlen(path);
65 	if (len > GOT_INDEX_ENTRY_F_PATH_LEN)
66 		len = GOT_INDEX_ENTRY_F_PATH_LEN;
67 	(*entry)->flags |= len;
68 
69 	return NULL;
70 }
71 
72 void
73 got_fileindex_entry_close(struct got_fileindex_entry *entry)
74 {
75 	free(entry->path);
76 	free(entry);
77 }