blob: bb0b8608aabb92b32de9cfe1629095ba9f9259ff (
plain) (
tree)
|
|
/**
* @file
*
* @brief access() - POSIX 1003.1b 5.6.3 - File Accessibility
* @ingroup libcsupport
*/
/*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
int access(
const char *path,
int amode
)
{
struct stat statbuf;
if ( stat(path, &statbuf) )
return -1;
if ( amode & R_OK ) {
if (!( statbuf.st_mode & S_IREAD ))
return -1;
}
if ( amode & W_OK ) {
if ( !( statbuf.st_mode & S_IWRITE ) )
return -1;
}
if ( amode & X_OK ) {
if ( !( statbuf.st_mode & S_IEXEC ) )
return -1;
}
return 0;
}
|