1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2018 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Shane Caraveo <shane@caraveo.com> |
16 | Ilia Alshanetsky <ilia@prohost.org> |
17 +----------------------------------------------------------------------+
18 */
19
20 #include "php.h"
21 #include "php_scandir.h"
22
23 #ifdef HAVE_SYS_TYPES_H
24 #include <sys/types.h>
25 #endif
26
27 #ifdef HAVE_DIRENT_H
28 #include <dirent.h>
29 #endif
30
31 #ifndef HAVE_SCANDIR
32
33 #ifdef PHP_WIN32
34 #include "win32/param.h"
35 #include "win32/readdir.h"
36 #endif
37
38 #include <stdlib.h>
39 #include <search.h>
40
41 #endif /* HAVE_SCANDIR */
42
43 #ifndef HAVE_ALPHASORT
44
45 #ifdef HAVE_STRING_H
46 #include <string.h>
47 #endif
48
php_alphasort(const struct dirent ** a,const struct dirent ** b)49 PHPAPI int php_alphasort(const struct dirent **a, const struct dirent **b)
50 {
51 return strcoll((*a)->d_name,(*b)->d_name);
52 }
53 #endif /* HAVE_ALPHASORT */
54
55 #ifndef HAVE_SCANDIR
php_scandir(const char * dirname,struct dirent ** namelist[],int (* selector)(const struct dirent * entry),int (* compare)(const struct dirent ** a,const struct dirent ** b))56 PHPAPI int php_scandir(const char *dirname, struct dirent **namelist[], int (*selector) (const struct dirent *entry), int (*compare) (const struct dirent **a, const struct dirent **b))
57 {
58 DIR *dirp = NULL;
59 struct dirent **vector = NULL;
60 int vector_size = 0;
61 int nfiles = 0;
62 char entry[sizeof(struct dirent)+MAXPATHLEN];
63 struct dirent *dp = (struct dirent *)&entry;
64
65 if (namelist == NULL) {
66 return -1;
67 }
68
69 if (!(dirp = opendir(dirname))) {
70 return -1;
71 }
72
73 while (!php_readdir_r(dirp, (struct dirent *)entry, &dp) && dp) {
74 size_t dsize = 0;
75 struct dirent *newdp = NULL;
76
77 if (selector && (*selector)(dp) == 0) {
78 continue;
79 }
80
81 if (nfiles == vector_size) {
82 struct dirent **newv;
83 if (vector_size == 0) {
84 vector_size = 10;
85 } else {
86 vector_size *= 2;
87 }
88
89 newv = (struct dirent **) realloc (vector, vector_size * sizeof (struct dirent *));
90 if (!newv) {
91 return -1;
92 }
93 vector = newv;
94 }
95
96 dsize = sizeof (struct dirent) + ((strlen(dp->d_name) + 1) * sizeof(char));
97 newdp = (struct dirent *) malloc(dsize);
98
99 if (newdp == NULL) {
100 goto fail;
101 }
102
103 vector[nfiles++] = (struct dirent *) memcpy(newdp, dp, dsize);
104 }
105
106 closedir(dirp);
107
108 *namelist = vector;
109
110 if (compare) {
111 qsort (*namelist, nfiles, sizeof(struct dirent *), (int (*) (const void *, const void *)) compare);
112 }
113
114 return nfiles;
115
116 fail:
117 while (nfiles-- > 0) {
118 free(vector[nfiles]);
119 }
120 free(vector);
121 return -1;
122 }
123 #endif
124
125 /*
126 * Local variables:
127 * tab-width: 4
128 * c-basic-offset: 4
129 * End:
130 * vim600: sw=4 ts=4 fdm=marker
131 * vim<600: sw=4 ts=4
132 */
133
