xref: /csrg-svn/lib/libc/stdio/fopen.c (revision 46079)
1*46079Sbostic /*-
2*46079Sbostic  * Copyright (c) 1990 The Regents of the University of California.
3*46079Sbostic  * All rights reserved.
4*46079Sbostic  *
5*46079Sbostic  * This code is derived from software contributed to Berkeley by
6*46079Sbostic  * Chris Torek.
7*46079Sbostic  *
8*46079Sbostic  * %sccs.include.redist.c%
921404Sdist  */
1021404Sdist 
1126647Sdonn #if defined(LIBC_SCCS) && !defined(lint)
12*46079Sbostic static char sccsid[] = "@(#)fopen.c	5.3 (Berkeley) 01/20/91";
13*46079Sbostic #endif /* LIBC_SCCS and not lint */
1421404Sdist 
1517951Sserge #include <sys/types.h>
16*46079Sbostic #include <sys/stat.h>
1717951Sserge #include <stdio.h>
18*46079Sbostic #include <errno.h>
19*46079Sbostic #include "local.h"
202004Swnj 
212004Swnj FILE *
222004Swnj fopen(file, mode)
2317951Sserge 	char *file;
24*46079Sbostic 	char *mode;
252004Swnj {
26*46079Sbostic 	register FILE *fp;
27*46079Sbostic 	register int f;
28*46079Sbostic 	int flags, oflags;
292004Swnj 
30*46079Sbostic 	if ((flags = __sflags(mode, &oflags)) == 0)
3117951Sserge 		return (NULL);
32*46079Sbostic 	if ((fp = __sfp()) == NULL)
3317951Sserge 		return (NULL);
34*46079Sbostic 	if ((f = open(file, oflags, DEFFILEMODE)) < 0) {
35*46079Sbostic 		fp->_flags = 0;			/* release */
36*46079Sbostic 		return (NULL);
3717951Sserge 	}
38*46079Sbostic 	fp->_file = f;
39*46079Sbostic 	fp->_flags = flags;
40*46079Sbostic 	fp->_cookie = fp;
41*46079Sbostic 	fp->_read = __sread;
42*46079Sbostic 	fp->_write = __swrite;
43*46079Sbostic 	fp->_seek = __sseek;
44*46079Sbostic 	fp->_close = __sclose;
45*46079Sbostic 	return (fp);
462004Swnj }
47