Update.

utils.h

@@ -43,5 +43,26 @@ char* expand_home_directory(const char* path) {
         return strdup(path);
     }
 }
+char * read_file(const char * path) {
+    char * expanded_path = expand_home_directory(path);
+    FILE *file = fopen(expanded_path, "r");
+    free(expanded_path);
+    if (file == NULL) {
+        return NULL;
+    }
+    fseek(file, 0, SEEK_END);
+    long size = ftell(file);
+    fseek(file, 0, SEEK_SET);
 
-#endif
+    char *buffer = (char *)malloc(size + 1);
+    size_t read = fread(buffer, 1, size, file);
+    if (read == 0) {
+        free(buffer);
+        return NULL;
+    }
+
+    fclose(file);
+    buffer[read] = '\0';
+    return buffer;
+}
+#endif