ls simulation

#include <stdio.h>
#include <dirent.h>

int ls() {
	struct dirent **namelist;
	int n, i;
	char pathname[100];
	getcwd(pathname);
	n = scandir(pathname, &namelist, 0, alphasort);
	if (n < 0) {
		perror("scandir");
	}
	else {
		for (i = 0; i < n; i++) {
			if (namelist[i]->d_name[0] != '.') {
				printf("%s \n", namelist[i]->d_name);
			}
		}
	}
	printf("\n");
	return 0;
}