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

int main()
{
	int x;
	
	x = rename("yourname.txt","zoomba.txt");
	if( x != 0 )
	{
		printf("ERROR: ");
		switch (errno) {
			case 1:
				printf("Operation not permitted");
				break;
			case 2:
				printf("No such file");
				break;
			case 13:
				printf("Permission denied");
				break;
			case 30:
				printf("Read-only file");
				break;
			case 63:
				printf("Filename too long");
				break;
			default:
				printf("Other strange error encountered");
				break;
		}
		return(1);
	}
	puts("File renamed!");
	return(0);
}