#include <errno.h>
#include <stdio.h>


/*
 * sample to show how errno works
 */
main(int ac, char *av[])
{
	int	result;

	if ( ac == 1 ){
		fprintf(stderr,"usage: sample1 dirname\n");
		exit(1);
	}

	
	result = mkdir( av[1], 0755 );
	printf("mkdir returned %d, and errno is %d\n",
		result, errno);
	if ( errno == 17 ){
		printf("the directory %s already exists\n", av[1]);
	} 
	else if ( errno != 0 ){
		printf("didn't work. sorry\n");
	}
}