auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 158 deletions

diff --git a/libc/stdio/freopen.c b/libc/stdio/freopen.c
deleted file mode 100644
index 414d810..0000000
--- a/libc/stdio/freopen.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*	$OpenBSD: freopen.c,v 1.9 2005/08/08 08:05:36 espie Exp $ */
-/*-
- * 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.
- * 3. 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.
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "local.h"
-
-/* 
- * Re-direct an existing, open (probably) file to some other file. 
- * ANSI is written such that the original file gets closed if at
- * all possible, no matter what.
- */
-FILE *
-freopen(const char *file, const char *mode, FILE *fp)
-{
-	int f;
-	int flags, isopen, oflags, sverrno, wantfd;
-
-	if ((flags = __sflags(mode, &oflags)) == 0) {
-		(void) fclose(fp);
-		return (NULL);
-	}
-
-	if (!__sdidinit)
-		__sinit();
-
-	/*
-	 * There are actually programs that depend on being able to "freopen"
-	 * descriptors that weren't originally open.  Keep this from breaking.
-	 * Remember whether the stream was open to begin with, and which file
-	 * descriptor (if any) was associated with it.  If it was attached to
-	 * a descriptor, defer closing it; freopen("/dev/stdin", "r", stdin)
-	 * should work.  This is unnecessary if it was not a Unix file.
-	 */
-	if (fp->_flags == 0) {
-		fp->_flags = __SEOF;	/* hold on to it */
-		isopen = 0;
-		wantfd = -1;
-	} else {
-		/* flush the stream; ANSI doesn't require this. */
-		if (fp->_flags & __SWR)
-			(void) __sflush(fp);
-		/* if close is NULL, closing is a no-op, hence pointless */
-		isopen = fp->_close != NULL;
-		if ((wantfd = fp->_file) < 0 && isopen) {
-			(void) (*fp->_close)(fp->_cookie);
-			isopen = 0;
-		}
-	}
-
-	/* Get a new descriptor to refer to the new file. */
-	f = open(file, oflags, DEFFILEMODE);
-	if (f < 0 && isopen) {
-		/* If out of fd's close the old one and try again. */
-		if (errno == ENFILE || errno == EMFILE) {
-			(void) (*fp->_close)(fp->_cookie);
-			isopen = 0;
-			f = open(file, oflags, DEFFILEMODE);
-		}
-	}
-	sverrno = errno;
-
-	/*
-	 * Finish closing fp.  Even if the open succeeded above, we cannot
-	 * keep fp->_base: it may be the wrong size.  This loses the effect
-	 * of any setbuffer calls, but stdio has always done this before.
-	 */
-	if (isopen && f != wantfd)
-		(void) (*fp->_close)(fp->_cookie);
-	if (fp->_flags & __SMBF)
-		free((char *)fp->_bf._base);
-	fp->_w = 0;
-	fp->_r = 0;
-	fp->_p = NULL;
-	fp->_bf._base = NULL;
-	fp->_bf._size = 0;
-	fp->_lbfsize = 0;
-	if (HASUB(fp))
-		FREEUB(fp);
-	_UB(fp)._size = 0;
-	WCIO_FREE(fp);
-	if (HASLB(fp))
-		FREELB(fp);
-	fp->_lb._size = 0;
-
-	if (f < 0) {			/* did not get it after all */
-		fp->_flags = 0;		/* set it free */
-		errno = sverrno;	/* restore in case _close clobbered */
-		return (NULL);
-	}
-
-	/*
-	 * If reopening something that was open before on a real file, try
-	 * to maintain the descriptor.  Various C library routines (perror)
-	 * assume stderr is always fd STDERR_FILENO, even if being freopen'd.
-	 */
-	if (wantfd >= 0 && f != wantfd) {
-		if (dup2(f, wantfd) >= 0) {
-			(void) close(f);
-			f = wantfd;
-		}
-	}
-
-	fp->_flags = flags;
-	fp->_file = f;
-	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((void *)fp, (fpos_t)0, SEEK_END);
-	return (fp);
-}