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sys-stat.c
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sys-stat.c
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/*
* <sys/stat.h> wrapper functions.
*
* Authors:
* Jonathan Pryor (jonpryor@vt.edu)
*
* Copyright (C) 2004 Jonathan Pryor
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif /* ndef _GNU_SOURCE */
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include "map.h"
#include "mph.h"
G_BEGIN_DECLS
struct Mono_Posix_Stat {
/* dev_t */ mph_dev_t st_dev; /* device */
/* ino_t */ mph_ino_t st_ino; /* inode */
/* mode_t */ guint32 st_mode; /* protection */
guint32 _padding_; /* structure padding */
/* nlink_t */ mph_nlink_t st_nlink; /* number of hard links */
/* uid_t */ mph_uid_t st_uid; /* user ID of owner */
/* gid_t */ mph_gid_t st_gid; /* group ID of owner */
/* dev_t */ mph_dev_t st_rdev; /* device type (if inode device) */
/* off_t */ mph_off_t st_size; /* total size, in bytes */
/* blksize_t */ mph_blksize_t st_blksize; /* blocksize for filesystem I/O */
/* blkcnt_t */ mph_blkcnt_t st_blocks; /* number of blocks allocated */
/* st_atime, st_mtime, and st_ctime are macros (!), so use a slightly
* different name to appease CPP */
/* time_t */ mph_time_t st_atime_; /* time of last access */
/* time_t */ mph_time_t st_mtime_; /* time of last modification */
/* time_t */ mph_time_t st_ctime_; /* time of last status change */
};
static int
copy_stat (struct Mono_Posix_Stat *to, struct stat *from)
{
if (Mono_Posix_ToFilePermissions (from->st_mode, &to->st_mode) == -1)
return -1;
to->st_dev = from->st_dev;
to->st_ino = from->st_ino;
to->st_nlink = from->st_nlink;
to->st_uid = from->st_uid;
to->st_gid = from->st_gid;
to->st_rdev = from->st_rdev;
to->st_size = from->st_size;
to->st_blksize = from->st_blksize;
to->st_blocks = from->st_blocks;
to->st_atime_ = from->st_atime;
to->st_mtime_ = from->st_mtime;
to->st_ctime_ = from->st_ctime;
return 0;
}
gint32
Mono_Posix_Syscall_stat (const char *file_name, struct Mono_Posix_Stat *buf)
{
int r;
struct stat _buf;
if (buf == NULL) {
errno = EFAULT;
return -1;
}
r = stat (file_name, &_buf);
if (r != -1 && copy_stat (buf, &_buf) == -1)
r = -1;
return r;
}
gint32
Mono_Posix_Syscall_fstat (int filedes, struct Mono_Posix_Stat *buf)
{
int r;
struct stat _buf;
if (buf == NULL) {
errno = EFAULT;
return -1;
}
r = fstat (filedes, &_buf);
if (r != -1 && copy_stat (buf, &_buf) == -1)
r = -1;
return r;
}
gint32
Mono_Posix_Syscall_lstat (const char *file_name, struct Mono_Posix_Stat *buf)
{
int r;
struct stat _buf;
if (buf == NULL) {
errno = EFAULT;
return -1;
}
r = lstat (file_name, &_buf);
if (r != -1 && copy_stat (buf, &_buf) == -1)
r = -1;
return r;
}
gint32
Mono_Posix_Syscall_mknod (const char *pathname, guint32 mode, mph_dev_t dev)
{
if (Mono_Posix_FromFilePermissions (mode, &mode) == -1)
return -1;
return mknod (pathname, mode, dev);
}
G_END_DECLS
/*
* vim: noexpandtab
*/