#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>	// opendir, closedir, readdir, struct dirent
#include <errno.h>
#include <unistd.h>
#include <string.h>

/*****	FONCTIONS	*****/

void filetype(const char * dirname, const char * filename) {
	struct stat entry_stat;
	char * path = NULL;
	// nom_dossier + '/' + nom_fichier + '\0'
	path = (char *)malloc(sizeof(char) * (strlen(dirname) + 1 + strlen(filename) + 1));
	strcpy(path, dirname);
	strcat(path, "/");
	strcat(path, filename);
	if(stat(path, &entry_stat) == -1) {
		perror("stat");
		exit(EXIT_FAILURE);
	}
	printf("[");

	if(S_ISDIR(entry_stat.st_mode)) {
		printf("rep.");
	} else if(S_ISREG(entry_stat.st_mode)) {
		printf("fic");
	}
	printf("] ");
	free(path);
}

void ls(char * dirname) {
	struct dirent * lecture;
	DIR * rep;
	rep = opendir(dirname);
	if(rep == NULL) {
 			printf("Répertoire inexistant\n");
 			exit(EXIT_SUCCESS);
 	}
	while ((lecture = readdir(rep))) {
		if(lecture == NULL && errno == EBADF) {
			fprintf(stderr, "'%s' is not a directory.\n", dirname);
			return;
		}
		if(strcmp(lecture->d_name, ".") != 0 && strcmp(lecture->d_name, "..") != 0) {
			filetype(dirname, lecture->d_name);
			printf("%s\n", lecture->d_name);
		}
 	}
 	closedir(rep);
}

/*****	PROGRAMME PRINCIPAL	*****/

int main(int argc, char * argv[]) {
	char * dirname = ".";
	if(argc > 1) {
		dirname = argv[1];
	}
	ls(dirname);
 	return 0;
}