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/*
* <dirent.h> wrapper functions.
*
* Authors:
* Jonathan Pryor (jonpryor@vt.edu)
*
* Copyright (C) 2004-2005 Jonathan Pryor
*/
#include <dirent.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
#include "map.h"
#include "mph.h"
#if defined (PATH_MAX) && defined (NAME_MAX)
#define MPH_PATH_MAX MAX(PATH_MAX, NAME_MAX)
#elif defined (PATH_MAX)
#define MPH_PATH_MAX PATH_MAX
#elif defined (NAME_MAX)
#define MPH_PATH_MAX NAME_MAX
#else /* !defined PATH_MAX && !defined NAME_MAX */
#define MPH_PATH_MAX 2048
#endif
G_BEGIN_DECLS
#if HAVE_SEEKDIR
gint32
Mono_Posix_Syscall_seekdir (void *dir, mph_off_t offset)
{
mph_return_if_off_t_overflow (offset);
seekdir ((DIR*) dir, (off_t) offset);
return 0;
}
#endif /* def HAVE_SEEKDIR */
#if HAVE_TELLDIR
mph_off_t
Mono_Posix_Syscall_telldir (void *dir)
{
return telldir ((DIR*) dir);
}
#endif /* def HAVE_TELLDIR */
static void
copy_dirent (struct Mono_Posix_Syscall__Dirent *to, struct dirent *from)
{
memset (to, 0, sizeof(*to));
to->d_ino = from->d_ino;
to->d_name = strdup (from->d_name);
#ifdef HAVE_STRUCT_DIRENT_D_OFF
to->d_off = from->d_off;
#endif
#ifdef HAVE_STRUCT_DIRENT_D_RECLEN
to->d_reclen = from->d_reclen;
#endif
#ifdef HAVE_STRUCT_DIRENT_D_TYPE
to->d_type = from->d_type;
#endif
}
gint32
Mono_Posix_Syscall_readdir (void *dirp, struct Mono_Posix_Syscall__Dirent *entry)
{
struct dirent *d;
if (entry == NULL) {
errno = EFAULT;
return -1;
}
errno = 0;
d = readdir (dirp);
if (d == NULL) {
return -1;
}
copy_dirent (entry, d);
return 0;
}
gint32
Mono_Posix_Syscall_readdir_r (void *dirp, struct Mono_Posix_Syscall__Dirent *entry, void **result)
{
struct dirent *_entry = malloc (sizeof (struct dirent) + MPH_PATH_MAX + 1);
int r;
r = readdir_r (dirp, _entry, (struct dirent**) result);
if (r == 0 && *result != NULL) {
copy_dirent (entry, _entry);
}
free (_entry);
return r;
}
int
Mono_Posix_Syscall_rewinddir (void* dir)
{
rewinddir (dir);
return 0;
}
G_END_DECLS
/*
* vim: noexpandtab
*/
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