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/*
* Copyright (c) 1994-1995, 1998 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit 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 GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
FILE *
fopen(const char *name, const char *mode)
{
int base_mode = O_RDONLY, flags = 0;
FILE *stream;
/* Find the appropriate Unix mode flags. */
switch (*mode++)
{
case 'w':
base_mode = O_WRONLY;
flags |= O_CREAT | O_TRUNC;
break;
case 'a':
base_mode = O_WRONLY;
flags |= O_CREAT | O_APPEND;
break;
}
while (*mode)
{
if (*mode == '+')
base_mode = O_RDWR;
mode++;
}
if (!(stream = malloc(sizeof(*stream))))
{
errno = ENOMEM;
return 0;
}
if ((stream->_file = open(name, base_mode | flags)) < 0)
{
free(stream);
return 0;
}
stream->_flags &= ~(__SEOF|__SERR);
return stream;
}
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