1 7b19e0f1 2017-11-05 stsp /*
 2 a1fd68d8 2018-01-12 stsp  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
 3 7b19e0f1 2017-11-05 stsp  *
 4 7b19e0f1 2017-11-05 stsp  * Permission to use, copy, modify, and distribute this software for any
 5 7b19e0f1 2017-11-05 stsp  * purpose with or without fee is hereby granted, provided that the above
 6 7b19e0f1 2017-11-05 stsp  * copyright notice and this permission notice appear in all copies.
 7 7b19e0f1 2017-11-05 stsp  *
 8 7b19e0f1 2017-11-05 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 7b19e0f1 2017-11-05 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 7b19e0f1 2017-11-05 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 7b19e0f1 2017-11-05 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 7b19e0f1 2017-11-05 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 7b19e0f1 2017-11-05 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 7b19e0f1 2017-11-05 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 7b19e0f1 2017-11-05 stsp  */
16 7b19e0f1 2017-11-05 stsp 
17 4027f31a 2017-11-04 stsp #include <limits.h>
18 4027f31a 2017-11-04 stsp #include <stdlib.h>
19 4027f31a 2017-11-04 stsp #include <unistd.h>
20 4027f31a 2017-11-04 stsp #include <stdio.h>
21 4027f31a 2017-11-04 stsp #include <string.h>
22 4027f31a 2017-11-04 stsp 
23 9d31a1d8 2018-03-11 stsp #include "got_error.h"
24 9d31a1d8 2018-03-11 stsp 
25 718b3ab0 2018-03-17 stsp #include "got_lib_path.h"
26 1411938b 2018-02-12 stsp 
27 4027f31a 2017-11-04 stsp int
28 4027f31a 2017-11-04 stsp got_path_is_absolute(const char *path)
29 4027f31a 2017-11-04 stsp {
30 4027f31a 2017-11-04 stsp 	return path[0] == '/';
31 4027f31a 2017-11-04 stsp }
32 4027f31a 2017-11-04 stsp 
33 4027f31a 2017-11-04 stsp char *
34 4027f31a 2017-11-04 stsp got_path_get_absolute(const char *relpath) 
35 4027f31a 2017-11-04 stsp {
36 4027f31a 2017-11-04 stsp 	char cwd[PATH_MAX];
37 4027f31a 2017-11-04 stsp 	char *abspath;
38 4027f31a 2017-11-04 stsp 
39 4027f31a 2017-11-04 stsp 	if (getcwd(cwd, sizeof(cwd)) == NULL)
40 4027f31a 2017-11-04 stsp 		return NULL;
41 4027f31a 2017-11-04 stsp 
42 4027f31a 2017-11-04 stsp 	if (asprintf(&abspath, "%s/%s/", cwd, relpath) == -1)
43 4027f31a 2017-11-04 stsp 		return NULL;
44 4027f31a 2017-11-04 stsp 
45 4027f31a 2017-11-04 stsp 	return abspath;
46 4027f31a 2017-11-04 stsp }
47 4027f31a 2017-11-04 stsp 
48 4027f31a 2017-11-04 stsp char *
49 4027f31a 2017-11-04 stsp got_path_normalize(const char *path)
50 4027f31a 2017-11-04 stsp {
51 4027f31a 2017-11-04 stsp 	char *resolved;
52 4027f31a 2017-11-04 stsp 
53 4027f31a 2017-11-04 stsp 	resolved = realpath(path, NULL);
54 4027f31a 2017-11-04 stsp 	if (resolved == NULL)
55 4027f31a 2017-11-04 stsp 		return NULL;
56 4027f31a 2017-11-04 stsp 	
57 4027f31a 2017-11-04 stsp 	if (!got_path_is_absolute(resolved)) {
58 4027f31a 2017-11-04 stsp 		char *abspath = got_path_get_absolute(resolved);
59 4027f31a 2017-11-04 stsp 		free(resolved);
60 4027f31a 2017-11-04 stsp 		resolved = abspath;
61 4027f31a 2017-11-04 stsp 	}
62 4027f31a 2017-11-04 stsp 
63 4027f31a 2017-11-04 stsp 	return resolved;
64 4027f31a 2017-11-04 stsp }
65 a1fd68d8 2018-01-12 stsp 
66 9d31a1d8 2018-03-11 stsp const struct got_error *
67 9d31a1d8 2018-03-11 stsp got_path_segment_count(int *count, const char *path)
68 9d31a1d8 2018-03-11 stsp {
69 9d31a1d8 2018-03-11 stsp 	char *s = strdup(path), *p;
70 9d31a1d8 2018-03-11 stsp 
71 9d31a1d8 2018-03-11 stsp 	*count = 0;
72 9d31a1d8 2018-03-11 stsp 
73 9d31a1d8 2018-03-11 stsp 	if (s == NULL)
74 0a585a0d 2018-03-17 stsp 		return got_error_from_errno();
75 9d31a1d8 2018-03-11 stsp 
76 9d31a1d8 2018-03-11 stsp 	do {
77 9d31a1d8 2018-03-11 stsp 		p = strsep(&s, "/");
78 9d31a1d8 2018-03-11 stsp 		if (s && *s != '/')
79 9d31a1d8 2018-03-11 stsp 			(*count)++;
80 9d31a1d8 2018-03-11 stsp 	} while (p);
81 9d31a1d8 2018-03-11 stsp 
82 9d31a1d8 2018-03-11 stsp 	return NULL;
83 9d31a1d8 2018-03-11 stsp }