x_close.c

来自「TCP-IP红宝书源代码」· C语言 代码 · 共 20 行

/* x_close.c - x_close */

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

/*------------------------------------------------------------------------
 *  x_close  -  (command close) close a device given its id
 *------------------------------------------------------------------------
 */
COMMAND	x_close(stdin, stdout, stderr, nargs, args)
int	stdin, stdout, stderr, nargs;
char	*args[];
{
	if (nargs != 2) {
		fprintf(stderr, "use: close device-number\n");
		return(SYSERR);
	}
	return(close(atoi(args[1])));
}