From 539f35bdae578037908fe8a01f8af14383bfaa40 Mon Sep 17 00:00:00 2001
From: Christian C <cc@localhost>
Date: Tue, 4 Mar 2025 17:04:02 -0800
Subject: Directory file listings

---
 src/main.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 246fae0..f9cc292 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2,6 +2,8 @@
 #include <stdlib.h>
 #include <time.h>
 #include <assert.h>
+#include <dirent.h>
+#include <string.h>
 
 #include <raylib.h>
 
@@ -17,6 +19,37 @@
 #define FALSE 0
 #define TRUE 1
 
+//-----------------------------------------------
+// List directory
+char** lsdir(char* dirname) {
+  DIR *d;
+  struct dirent *dir;
+  d = opendir(dirname);
+  char** file_names = (char**)malloc(sizeof(char*));
+  if (!file_names) {
+    return NULL;
+  }
+  file_names[0] = NULL;
+  size_t file_count = 0;
+  if (d) {
+    while ((dir = readdir(d)) != NULL) {
+      if (dir->d_type == DT_REG) {
+	// When a regular file is reached
+	/// Create space for it in the list
+	file_names = realloc(file_names, (file_count+1+1)*sizeof(char*));
+	/// Create space for the name
+	file_names[file_count] = calloc(strlen(dir->d_name)+1, sizeof(char));
+	/// Copy the name
+	strcpy(file_names[file_count], dir->d_name);
+	/// Mark the end of the file list with a NULL entry
+	file_names[++file_count] = NULL;
+      }
+    }
+    return file_names;
+  }
+  return NULL;
+}
+
 //-----------------------------------------------
 // Difference in Time
 // Compute the difference between timespec structs
@@ -95,6 +128,24 @@ bool_t flood(uint8_t* image, uint16_t* mask, size_t width, size_t height, size_t
 
 int main()
 {
+  //-----------------------------------------------
+  //-LIST-FILES-IN-DIRECTORY-----------------------
+  //-----------------------------------------------
+  char** file_list = lsdir("data/");
+  if (file_list) {
+    size_t index = 0;
+    while (1) {
+      char* fname = file_list[index];
+      if (fname == NULL) {
+	break;
+      }
+      printf("%s\n", fname);
+      free(file_list[index++]);
+    }
+    free(file_list);
+  }
+  //-----------------------------------------------
+
   //-----------------------------------------------
   //-RAYLIB-INIT
   //-----------------------------------------------
-- 
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