fix: add better number handling

2 files changed, 11 insertions, 2 deletions

diff --git a/src/mazerator.c b/src/mazerator.c
index 8224fb9..593d518 100644
--- a/src/mazerator.c
+++ b/src/mazerator.c
@@ -72,6 +72,9 @@ int main(int argc, char *argv[])
 			if (err != NULL)
 				optarg_error(arg, err);
 
+			if (maze_width == 0)
+				optarg_error(arg, "It should not be 0");
+
 			break;
 		case 'h':
 			maze_height = str_to_uint(optarg, &err);
@@ -79,6 +82,9 @@ int main(int argc, char *argv[])
 			if (err != NULL)
 				optarg_error(arg, err);
 
+			if (maze_height == 0)
+				optarg_error(arg, "It should not be 0");
+
 			break;
 		case 'x':
 			start_x = malloc_s(sizeof(unsigned int *));
@@ -106,6 +112,9 @@ int main(int argc, char *argv[])
 			if (err != NULL)
 				optarg_error(arg, err);
 
+			if (*seed == 0)
+				optarg_error(arg, "It should not be 0");
+
 			break;
 		case 0:
 			printf("Usage: %s [OPTION]...\n\n"
@@ -119,7 +128,7 @@ int main(int argc, char *argv[])
 				   "  -W, --wall WALL         Single character used as maze walls "
 				   "(Default: '█')\n"
 				   "  -s, --seed SEED         The randomization seed used for maze "
-				   "generation (Any number)\n"
+				   "generation\n"
 				   "  --help                  Displays usage information\n",
 				   argv[0]);
 			exit(0);
diff --git a/src/utils.c b/src/utils.c
index 69ce55d..da48ef6 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -33,7 +33,7 @@ unsigned int str_to_uint(char *str, char **err)
 {
 	if (*str == '-')
 	{
-		*err = "Not greater than 0";
+		*err = "Less than 0";
 		return 0;
 	}