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/*
* RTEMS Fake System Calls
*
* This file contains "fake" versions of the system call routines
* which are reference by many libc implementations. Once a routine
* has been implemented in terms of RTEMS services, it should be
* taken out of this file.
*
* COPYRIGHT (c) 1989-1998.
* On-Line Applications Research Corporation (OAR).
* Copyright assigned to U.S. Government, 1994.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <stdio.h> /* only for puts */
#include <rtems.h>
#include <rtems/libio.h>
#ifdef RTEMS_NEWLIB
/*
* fstat, stat, and isatty must lie consistently and report that everything
* is a tty or stdout will not be line buffered.
*/
int __rtems_fstat(int _fd, struct stat* _sbuf)
{
#ifdef HAVE_BLKSIZE
_sbuf->st_blksize = 0;
#endif
/*
* For now assume stdin/stdout/stderr are always a TTY line
*
* From Eric Norum:
*
* The `fix' is not complete. It still doesn't properly handle
* file descriptors for any files/devices other than the console
* serial lines.....
*/
if (_fd <= 2) {
_sbuf->st_mode = S_IFCHR;
} else {
switch (rtems_file_descriptor_type (_fd)) {
case RTEMS_FILE_DESCRIPTOR_TYPE_FILE:
_sbuf->st_mode = S_IFREG;
break;
case RTEMS_FILE_DESCRIPTOR_TYPE_SOCKET:
#if !defined(__GO32__)
_sbuf->st_mode = S_IFSOCK;
break;
#endif
default:
puts( "__rtems_fstat -- unknown file descriptor type" );
assert( 0 );
}
}
return 0;
}
int __rtems_isatty(int _fd)
{
struct stat st;
if (__rtems_fstat(_fd, &st) < 0)
return 0;
return S_ISCHR (st.st_mode);
}
#if !defined(RTEMS_UNIX)
int stat( const char *path, struct stat *buf )
{
if ( strncmp( "/dev/", path, 5 ) ) {
return -1;
}
return __rtems_fstat( 0, buf );
}
int link( const char *existing, const char *new )
{
/* always fail */
return -1;
}
int unlink( const char *path )
{
/* always fail */
return -1;
}
char *getcwd( char *_buf, size_t _size)
{
/* assert( FALSE ); */
errno = ENOSYS;
return 0;
}
int fork() {
puts( "fork -- not supported!!!" );
assert( 0 );
errno = ENOSYS;
return -1;
}
int execv(const char *_path, char * const _argv[] ) {
puts( "execv -- not supported!!!" );
assert( 0 );
errno = ENOSYS;
return -1;
}
int wait() {
puts( "wait -- not supported!!!" );
assert( 0 );
errno = ENOSYS;
return -1;
}
#endif
#endif
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