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/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
On-Line Applications Research Corporation.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <stdio_lim.h>
#include <unistd.h>
#define __DECLARE_FILE_DESCRIPTORS__
#include "filedesc.h"
/* Open FILE with access OFLAG. If OFLAG includes O_CREAT,
a third argument is the file protection. */
int
DEFUN(__open, (file, oflag), CONST char *file AND int oflag DOTS)
{
int mode;
int newfd;
int index;
if (file == NULL)
{
errno = EINVAL;
return -1;
}
if (oflag & O_CREAT)
{
va_list arg;
va_start(arg, oflag);
mode = va_arg(arg, int);
va_end(arg);
}
/*
* Find an open slot.
*/
newfd = -1;
for ( index=0 ; index< FOPEN_MAX ; index++ )
if ( !__FD_Table[ index ].in_use ) {
newfd = index;
break;
}
if ( newfd == -1 ) {
errno = ENFILE;
return -1;
}
/*
* Initialize the open slot
*/
__FD_Table[ newfd ].in_use = 1;
__FD_Table[ newfd ].flags = oflag;
return newfd;
}
/* Initialization Code for Console I/O */
#ifdef HAVE_GNU_LD
static
#endif
void
DEFUN(__NONE_init_console_io, (argc, argv, envp),
int argc AND char **argv AND char **envp)
{
int index;
for ( index=0 ; index< FOPEN_MAX ; index++ )
__FD_Table[ index ].in_use = 0;
stdin = fopen( "", "r" );
stdout = fopen( "", "w" );
stderr = fopen( "", "w" );
/*
* Line buffer the standard input and output and use no buffering for
* standard error.
*/
setvbuf( stdin, NULL, _IOLBF, BUFSIZ );
setvbuf( stdout, NULL, _IOLBF, BUFSIZ );
setvbuf( stderr, NULL, _IONBF, BUFSIZ );
(void) &__NONE_init_console_io; /* Avoid "defined but not used" warning. */
}
#ifdef HAVE_GNU_LD
text_set_element (__libc_subinit, __NONE_init_console_io);
#endif
weak_alias (__open, open)
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