mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-30 06:21:07 +00:00
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/* Copyright (C) 1994, 1995, 1996, 1997 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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdarg.h>
|
|
#include <stddef.h>
|
|
|
|
#include <stdio.h>
|
|
#include <bits/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
|
|
__open (file, oflag)
|
|
const char *file;
|
|
int oflag;
|
|
{
|
|
int mode;
|
|
int newfd;
|
|
int index;
|
|
|
|
if (file == NULL)
|
|
{
|
|
__set_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 ) {
|
|
__set_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
|
|
__NONE_init_console_io (argc, argv, envp)
|
|
int argc;
|
|
char **argv;
|
|
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)
|