diff options
Diffstat (limited to 'lib/libc/stdio/fopen.c')
| -rw-r--r-- | lib/libc/stdio/fopen.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/lib/libc/stdio/fopen.c b/lib/libc/stdio/fopen.c deleted file mode 100644 index 6fe536a..0000000 --- a/lib/libc/stdio/fopen.c +++ /dev/null @@ -1,99 +0,0 @@ -/*- - * Copyright (c) 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Chris Torek. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)fopen.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "namespace.h" -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdio.h> -#include <errno.h> -#include <limits.h> -#include "un-namespace.h" - -#include "local.h" - -FILE * -fopen(file, mode) - const char * __restrict file; - const char * __restrict mode; -{ - FILE *fp; - int f; - int flags, oflags; - - if ((flags = __sflags(mode, &oflags)) == 0) - return (NULL); - if ((fp = __sfp()) == NULL) - return (NULL); - if ((f = _open(file, oflags, DEFFILEMODE)) < 0) { - fp->_flags = 0; /* release */ - return (NULL); - } - /* - * File descriptors are a full int, but _file is only a short. - * If we get a valid file descriptor that is greater than - * SHRT_MAX, then the fd will get sign-extended into an - * invalid file descriptor. Handle this case by failing the - * open. - */ - if (f > SHRT_MAX) { - fp->_flags = 0; /* release */ - _close(f); - errno = EMFILE; - return (NULL); - } - fp->_file = f; - fp->_flags = flags; - fp->_cookie = fp; - fp->_read = __sread; - fp->_write = __swrite; - fp->_seek = __sseek; - fp->_close = __sclose; - /* - * When opening in append mode, even though we use O_APPEND, - * we need to seek to the end so that ftell() gets the right - * answer. If the user then alters the seek pointer, or - * the file extends, this will fail, but there is not much - * we can do about this. (We could set __SAPP and check in - * fseek and ftell.) - */ - if (oflags & O_APPEND) - (void)_sseek(fp, (fpos_t)0, SEEK_END); - return (fp); -} |
