ondelay.c
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- /* $Id: ondelay.c,v 1.2 2008/04/26 22:34:28 faxguy Exp $ */
- /*
- * Copyright (c) 1993-1996 Sam Leffler
- * Copyright (c) 1993-1996 Silicon Graphics, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and
- * its documentation for any purpose is hereby granted without fee, provided
- * that (i) the above copyright notices and this permission notice appear in
- * all copies of the software and related documentation, and (ii) the names of
- * Sam Leffler and Silicon Graphics may not be used in any advertising or
- * publicity relating to the software without the specific, prior written
- * permission of Sam Leffler and Silicon Graphics.
- *
- * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
- * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <unistd.h>
- #include <stdio.h>
- #include "port.h"
- #ifndef O_NDELAY
- #ifdef O_NONBLOCK
- #define O_NDELAY O_NONBLOCK
- #else
- #define O_NDELAY 0
- #endif
- #endif
- int
- main(int ac, char* av[])
- {
- close(0);
- if (open(av[1], O_RDWR|O_NDELAY) < 0) {
- perror(av[1]);
- return (-1);
- }
- (void) fcntl(0, F_SETFL, fcntl(0, F_GETFL, 0) &~ O_NDELAY);
- #ifndef ONDELAY_NOSTDINDUP
- close(1); int ignore = dup(0); /* for Ultrix and other old BSD stty(1)s */
- #endif
- execvp(av[2], &av[2]);
- perror(av[2]);
- return (-1);
- }