70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
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/*
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* Copyright (c) 2009 - , Peter Vrabec
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the copyright holders or contributors may not be used to
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* endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <config.h>
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#ident "$Id$"
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#include <stdio.h>
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#include <sys/wait.h>
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#include <fcntl.h>
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#include "prototypes.h"
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#include "defines.h"
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int safe_system (const char *command,
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const char *argv[],
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const char *env[],
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int ignore_stderr)
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{
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int status = -1;
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int fd;
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pid_t pid;
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pid = fork();
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if (pid < 0) {
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return -1;
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}
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if (pid) { /* Parent */
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waitpid (pid, &status, 0);
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return status;
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}
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fd = open ("/dev/null", O_RDWR);
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/* Child */
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dup2 (fd, 0); // Close Stdin
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if (ignore_stderr) {
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dup2 (fd, 2); // Close Stderr
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}
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execve (command, (char *const *) argv, (char *const *) env);
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fprintf (stderr, _("Failed to exec '%s'\n"), argv[0]);
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exit (-1);
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}
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