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/* $OpenBSD: execve.c,v 1.3 2003/07/31 21:48:04 deraadt Exp $ */
/*
* Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors,
* proven@mit.edu All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Chris Provenzano,
* the University of California, Berkeley, and contributors.
* 4. Neither the name of Chris Provenzano, the University, nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO 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 CHRIS PROVENZANO, 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.
*/
/*
* Copyright (c) 1994 by Chris Provenzano, proven@athena.mit.edu
*
* Test execve() and dup2() calls.
*/
#include <pthread.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include "test.h"
extern char **environ;
char *argv[] = {
"/bin/echo",
"This line should appear after the execve",
NULL
};
char * should_succeed = "This line should be displayed\n";
int
main(int argc, char *argv[])
{
int fd;
printf("This is the first message\n");
if (isatty(STDOUT_FILENO)) {
char *ttynm;
CHECKn(ttynm = ttyname(STDOUT_FILENO));
printf("tty is %s\n", ttynm);
CHECKe(fd = open(ttynm, O_RDWR));
} else {
printf("IGNORED: stdout is not a tty: this test needs a tty\n");
SUCCEED;
}
CHECKn(printf("This output is necessary to set the stdout fd to NONBLOCKING\n"));
/* do a dup2 */
CHECKe(dup2(fd, STDOUT_FILENO));
CHECKe(write(STDOUT_FILENO, should_succeed,
(size_t)strlen(should_succeed)));
CHECKe(execve(argv[0], argv, environ));
DIE(errno, "execve %s", argv[0]);
}
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