x_kill.c

来自「TCP-IP红宝书源代码」· C语言 代码 · 共 25 行

/* x_kill.c - x_kill */

#include <conf.h>
#include <kernel.h>
#include <shell.h>

/*------------------------------------------------------------------------
 *  x_kill  -  (command kill) terminate a process
 *------------------------------------------------------------------------
 */
BUILTIN	x_kill(stdin, stdout, stderr, nargs, args)
int	stdin, stdout, stderr, nargs;
char	*args[];
{
	int	pid;

	if (nargs != 2) {
		fprintf(stderr, "use: kill process-id\n");
		return(SYSERR);
	}
	if ( (pid=atoi(args[1])) == getpid() )
		fprintf(stderr, "Shell killed\n");
	return( kill(pid) );
}