opening files using mimetypes defined in config.h

threading.c

@@ -21,6 +21,7 @@ file *rgt_content;
 file *mid_content;
 file *lft_content;
 char *rgt_buffer; /* used for file previews, unlike rgt_content, which is used for directory previews */
+char *btm_buffer;
 
 file file_current;
 
@@ -184,6 +185,7 @@ void threading_init(){
 
 	top_content = malloc(sizeof(char));
 	rgt_buffer = malloc(sizeof(char));
+	btm_buffer = malloc(sizeof(char));
 
 	file_current.file_type = 0;
 	file_current.file_size_bytes = 1;