add read file functionality

src/points.c

@@ -17,9 +17,9 @@
 #include <stdlib.h>
 #include <getopt.h>
 #include <string.h>
-#include <errno.h>
-#include <limits.h>
 #include "timer.h"
+#include "points.h"
+#include "read_file.h"
 
 #define POINTS_VERSION "1.0.0"
 
@@ -28,6 +28,7 @@
  */
 void print_usage() {
 	fprintf(stdout, "uso: points [OPCIÓN]\n");
+	fprintf(stdout, "  -f, --file                 el archivo de puntos a correr\n");
 	fprintf(stdout, "  -a, --all                  usar todos los algoritmos de ordenamentio\n");
 	fprintf(stdout, "  -b, --brute                usar brute force\n");
 	fprintf(stdout, "  -d, --divide               usar divide and conquer\n");
@@ -38,14 +39,19 @@ void print_usage() {
 /**
  * La entrada del programa
  * @param argc La cantidad de argumentos pasado al programa
+ * @param argv Los argumento pasado al programa
  * @return Retorna el codigo de error o 0 por exito
  */
 int main (int argc, char **argv) {
+	point_t *points = NULL;
+	char *filename = NULL;
 	int brute = 0;
 	int divide = 0;
 	int opt;
 	int long_index = 0;
+	unsigned int n = 0;
 	static struct option long_options[] = {
+		{"file",		required_argument,	0,	'f'},
 		{"all",			no_argument,		0,	'a'},
 		{"brute",		no_argument,		0,	'b'},
 		{"divide",		no_argument,		0,	'd'},
@@ -59,8 +65,16 @@ int main (int argc, char **argv) {
 		return 0;
 	}
 
-	while ((opt = getopt_long(argc, argv, "abdhv", long_options, &long_index)) != -1) {
+	while ((opt = getopt_long(argc, argv, "f:abdhv", long_options, &long_index)) != -1) {
 		switch (opt) {
+			case 'f':
+				if (filename != NULL) {
+					free(filename);
+					filename = NULL;
+				}
+				filename = malloc(sizeof(optarg) * strlen(optarg));
+				strcpy(filename, optarg);
+				break;
 			case 'a':
 				brute = 1;
 				divide = 1;
@@ -73,13 +87,22 @@ int main (int argc, char **argv) {
 				break;
 			case 'h':
 				print_usage();
+				if (filename != NULL) {
+					free(filename);
+				}
 				return 0;
 			case 'v':
 				printf("points versión: %s\n", POINTS_VERSION);
+				if (filename != NULL) {
+					free(filename);
+				}
 				return 0;
 				break;
 			default:
 				print_usage();
+				if (filename != NULL) {
+					free(filename);
+				}
 				return 1;
 		}
 	}
@@ -87,7 +110,26 @@ int main (int argc, char **argv) {
 	if (!brute && !divide) {
 		fprintf(stderr, "Error: No se seleccionó un algoritmo valido!\n");
 		print_usage();
-		return 4;
+		if (filename != NULL) {
+			free(filename);
+		}
+		return 2;
+	}
+
+	points = malloc(sizeof(point_t));
+	if ((opt = read_file(filename, &points, &n)) == 1) {
+		if (filename != NULL) {
+			free(filename);
+		}
+		if (opt > 3) {
+			// Only print this error if the file was able to be opened
+			fprintf(stderr, "Error: El archivo es corrupto!\n");
+		}
+		return 3;
+	}
+
+	if (filename != NULL) {
+		free(filename);
 	}
 
 	return 0;