Limited to max 200 files in display so things don't bog down.

list.h

@@ -3,13 +3,19 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+#define MAX_FILES 200
 static void add_file(char *name, char ***files, int *size, int *capacity)
 {
+  // Prevent from taking too long
+  if (*size > MAX_FILES) return;
   if (*size == *capacity) {
     *capacity *= 2;
     *files = realloc(*files, sizeof(char*) * (*capacity));
   }
-  (*files)[*size] = strdup(name);
+  if (*size == MAX_FILES)
+      (*files)[*size] = strdup("...too many to list...");
+  else
+      (*files)[*size] = strdup(name);
   (*size)++;
 }
 
@@ -18,35 +24,31 @@ static void add_files(char *name, char ***files, int *size, int *capacity)
   DIR *dir;
   struct dirent *entry;
 
+  // Prevent from taking too long
+  if (*size > MAX_FILES) return;
+
   add_file(name, files, size, capacity);
   if (!(dir = opendir(name))) {
     return;
   }
 
+  char path[1024];
   while ((entry = readdir(dir)) != NULL) {
-    char path[1024];
     if (entry->d_type == DT_DIR) {
       if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
         continue;
-      snprintf(path, sizeof(path), "%s/%s", name, entry->d_name);
+      if (name[strlen(name)-1] == '/')
+        snprintf(path, sizeof(path), "%s%s", name, entry->d_name);
+      else
+        snprintf(path, sizeof(path), "%s/%s", name, entry->d_name);
       add_files(path, files, size, capacity);
     } else {
       snprintf(path, sizeof(path), "%s/%s", name, entry->d_name);
       add_file(path, files, size, capacity);
     }
+
+    // Prevent from taking too long
+    if (*size > MAX_FILES) return;
   }
   closedir(dir);
 }
-
-/*int main(int argc, char *argv[]) {
-  int capacity = 32, size = 0;
-  char **files = malloc(sizeof(char*)*capacity);
-  for (int i = 1; i < argc; i++) {
-    add_files(argv[i], &files, &size, &capacity);
-  }
-
-  for (int f = 0; f < size; f++) {
-    printf("%s\n", files[f]);
-  }
-  return 0;
-}*/