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126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/* Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
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Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
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On-Line Applications Research Corporation.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <errno.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdio_lim.h>
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#include <unistd.h>
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#define __DECLARE_FILE_DESCRIPTORS__
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#include "filedesc.h"
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/* Open FILE with access OFLAG. If OFLAG includes O_CREAT,
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a third argument is the file protection. */
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int
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__open (file, oflag)
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const char *file;
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int oflag;
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{
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int mode;
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int newfd;
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int index;
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if (file == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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if (oflag & O_CREAT)
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{
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va_list arg;
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va_start(arg, oflag);
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mode = va_arg(arg, int);
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va_end(arg);
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}
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/*
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* Find an open slot.
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*/
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newfd = -1;
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for ( index=0 ; index< FOPEN_MAX ; index++ )
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if ( !__FD_Table[ index ].in_use ) {
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newfd = index;
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break;
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}
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if ( newfd == -1 ) {
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__set_errno (ENFILE);
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return -1;
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}
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/*
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* Initialize the open slot
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*/
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__FD_Table[ newfd ].in_use = 1;
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__FD_Table[ newfd ].flags = oflag;
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return newfd;
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}
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/* Initialization Code for Console I/O */
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#ifdef HAVE_GNU_LD
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static
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#endif
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void
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__NONE_init_console_io (argc, argv, envp)
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int argc;
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char **argv;
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char **envp;
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{
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int index;
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for ( index=0 ; index< FOPEN_MAX ; index++ )
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__FD_Table[ index ].in_use = 0;
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stdin = fopen( "", "r" );
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stdout = fopen( "", "w" );
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stderr = fopen( "", "w" );
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/*
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* Line buffer the standard input and output and use no buffering for
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* standard error.
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*/
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setvbuf( stdin, NULL, _IOLBF, BUFSIZ );
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setvbuf( stdout, NULL, _IOLBF, BUFSIZ );
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setvbuf( stderr, NULL, _IONBF, BUFSIZ );
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(void) &__NONE_init_console_io; /* Avoid "defined but not used" warning. */
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}
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#ifdef HAVE_GNU_LD
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text_set_element (__libc_subinit, __NONE_init_console_io);
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#endif
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weak_alias (__open, open)
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