# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/mine/hotfix-check-file-unlink.patch
# Copyright (C) 2006-2016 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0 or patched project license
# --- T2-COPYRIGHT-END ---

This fixes detecting unliked (removed, deleted) files as modified.

  - Rene Rebe <rene@exactcode.de>

--- mine-0.23/md5sum.c.orig	2016-03-23 23:08:37.515390469 +0100
+++ mine-0.23/md5sum.c	2016-03-23 23:20:45.379405046 +0100
@@ -1,6 +1,7 @@
 /*
  *  GEM MINE - The ROCK Linux Package Manager
  *  Copyright (C) 2002-2005 Clifford Wolf
+ *  Copyright (C) 2006-2016 Rene Rebe
  *  
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -34,11 +35,11 @@
 
 char * md5sum_create(char * root, char * filename) {
 	char realfilename[1024];
-	struct stat statbuf;
+	struct stat st;
 
 	snprintf(realfilename, 1024, "%s/%s", root, filename);
-	return (stat(realfilename, &statbuf) != 0 || S_ISFIFO(statbuf.st_mode))
-		? "" : md5_file(realfilename);
+	return (!lstat(realfilename, &st) && S_ISREG(st.st_mode) ?
+		md5_file(realfilename) : "");
 }
 
 /* Returns 1 if file is duplicate, 2 if file is modified. */
@@ -48,9 +49,14 @@
 
 	md5_f = md5sum_create(root, filename);
 	md5_d = memdb_get(&md5_memdb, filename);
-	
-	if (md5_f == NULL || strcmp(md5_f, "") == 0)
-		return 0;
+
+	/* this is a bit tricky, directory also have no hash! */
+	if (md5_f == NULL || strcmp(md5_f, "") == 0) {
+		if (md5_d == NULL || strcmp(md5_d, "") == 0)
+			return 0; /* directory or symlink, no hash in db */
+		else
+			return 2; /* modified, was removed */
+	}
 	else if (md5_d == NULL)
 		return 1;
 	else if (strcmp(md5_f, md5_d) == 0)