provastub.c

来自「VoiFax is a program that manage voice/da」· C语言 代码 · 共 50 行

/*  provastub, test program for voice child communication
 *  Copyright (C) 2004  Simone Freddio & Andrea Emanuelli
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>


int main(int argc, char **argv)
{
	char arg[10];
	int pipe_fd[2];

	pipe(pipe_fd);

	if (fork() == 0)
	{
		sprintf(arg, "%d", pipe_fd[0]);
		
		printf("Child: executing script with arg = %s\n", arg);
		execl("provastub.sh", "provastub.sh", arg, NULL);
		return 0;
	}

	/* send some data to child */
	printf("Parent: writing on pipe\n");
	write(pipe_fd[1], "Here I go!\n", 11);
	
	printf("Parent: sleeping (ZzZz)\n");
	sleep(2);

	return 0;
}