setpgrp.c

来自「操作系统SunOS 4.1.3版本的源码」· C语言 代码 · 共 40 行

/*      @(#)setpgrp.c 1.1 92/07/30 SMI      */

/*	Copyright (c) 1984 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/

#ident	"@(#)setpgrp:setpgrp.c	1.2"
/*
	Set process group ID to this process ID and exec the command line
	that is the argument list.
*/


#include <stdio.h>

main( argc, argv )
int	argc;
char	*argv[];
{
	char	*cmd;

	cmd = *argv;
	if( argc <= 1 ) {
		fprintf( stderr, "Usage:  %s command [ arg ... ]\n", cmd );
		exit(1);
	}
	argv++;
	argc--;
	setpgrp();
	execvp( *argv, argv );
	fprintf( stderr, "%s: %s not executed.  ", cmd, *argv );
	perror( "" );
	exit( 1 );

	/* NOTREACHED */
}