Add missing {
[mono-project.git] / support / dirent.c
blobbc1b3e238e16730ad5113258b05eb174ec214b6f
1 /*
2 * <dirent.h> wrapper functions.
4 * Authors:
5 * Jonathan Pryor (jonpryor@vt.edu)
7 * Copyright (C) 2004-2005 Jonathan Pryor
8 */
10 #include <dirent.h>
11 #include <errno.h>
12 #include <string.h>
13 #include <stdlib.h>
14 #include <limits.h>
15 #include <unistd.h>
17 #include "map.h"
18 #include "mph.h"
20 #if defined (PATH_MAX) && defined (NAME_MAX)
21 #define MPH_PATH_MAX MAX(PATH_MAX, NAME_MAX)
22 #elif defined (PATH_MAX)
23 #define MPH_PATH_MAX PATH_MAX
24 #elif defined (NAME_MAX)
25 #define MPH_PATH_MAX NAME_MAX
26 #else /* !defined PATH_MAX && !defined NAME_MAX */
27 #define MPH_PATH_MAX 2048
28 #endif
30 G_BEGIN_DECLS
32 #if HAVE_SEEKDIR
33 gint32
34 Mono_Posix_Syscall_seekdir (void *dir, mph_off_t offset)
36 mph_return_if_off_t_overflow (offset);
38 seekdir ((DIR*) dir, (off_t) offset);
40 return 0;
42 #endif /* def HAVE_SEEKDIR */
44 #if HAVE_TELLDIR
45 mph_off_t
46 Mono_Posix_Syscall_telldir (void *dir)
48 return telldir ((DIR*) dir);
50 #endif /* def HAVE_TELLDIR */
52 static void
53 copy_dirent (struct Mono_Posix_Syscall__Dirent *to, struct dirent *from)
55 memset (to, 0, sizeof(*to));
57 to->d_ino = from->d_ino;
58 to->d_name = strdup (from->d_name);
60 #ifdef HAVE_STRUCT_DIRENT_D_OFF
61 to->d_off = from->d_off;
62 #endif
63 #ifdef HAVE_STRUCT_DIRENT_D_RECLEN
64 to->d_reclen = from->d_reclen;
65 #endif
66 #ifdef HAVE_STRUCT_DIRENT_D_TYPE
67 to->d_type = from->d_type;
68 #endif
71 gint32
72 Mono_Posix_Syscall_readdir (void *dirp, struct Mono_Posix_Syscall__Dirent *entry)
74 struct dirent *d;
76 if (entry == NULL) {
77 errno = EFAULT;
78 return -1;
81 errno = 0;
82 d = readdir (dirp);
84 if (d == NULL) {
85 return -1;
88 copy_dirent (entry, d);
90 return 0;
93 gint32
94 Mono_Posix_Syscall_readdir_r (void *dirp, struct Mono_Posix_Syscall__Dirent *entry, void **result)
96 struct dirent *_entry = malloc (sizeof (struct dirent) + MPH_PATH_MAX + 1);
97 int r;
99 r = readdir_r (dirp, _entry, (struct dirent**) result);
101 if (r == 0 && *result != NULL) {
102 copy_dirent (entry, _entry);
105 free (_entry);
107 return r;
111 Mono_Posix_Syscall_rewinddir (void* dir)
113 rewinddir (dir);
114 return 0;
117 G_END_DECLS
120 * vim: noexpandtab