simplify code and add warngings

1 files changed, 16 insertions, 12 deletions

diff --git a/ls.c b/ls.c
index 630ee4a..ddcdc74 100644
--- a/ls.c
+++ b/ls.c
@@ -17,18 +17,22 @@ int main(int argc, char *argv[])
     }
   }
 
-  if (argc > 0) {
-    for (int i = 1; i < argc; i++) {
-      dirs = argv[i];
-      if ((d = opendir(dirs))) {
-        while ((dir = readdir(d)) != NULL) {
-          if (strncmp(dir->d_name, ".", 1) != 0 && hidden) /* dont print hidden files */
-            printf("%s\n", dir->d_name);
-          else if (!hidden)
-            printf("%s\n", dir->d_name);
-        }
-        closedir(d); 
-      }
+  if (argc < 2) {
+    fprintf(stderr, "No arguments provided.\n");
+    return 1;
+  }
+
+  for (int i = 1; i < argc; i++) {
+    while (!strncmp(argv[i], "-", 1) || !opendir(argv[i]))
+      i++;
+    
+    d = opendir(argv[i]);
+    while ((dir = readdir(d)) != NULL) {
+      if (strncmp(dir->d_name, ".", 1) != 0 && hidden) /* dont print hidden files */
+        printf("%s\n", dir->d_name);
+      else if (!hidden)
+        printf("%s\n", dir->d_name);
     }
+    closedir(d); 
   }
 }