Patch for globals.cpp realpath() - preventing garbage paths

[gryphon]

I've added  patch to berlios for realpath()
https://developer.berlios.de/patch/index.php?func=detailpatch&patch_id=2564&group_id=5358

This allows realpath() to correctly handle paths with more than one symlink and paths with symlinks to symlinks when the path is absolute.

Code

Index: globals.cpp
===================================================================
--- globals.cpp	(revision 5206)
+++ globals.cpp	(working copy)
@@ -1027,6 +1027,7 @@
 			if (S_ISLNK(buffer.st_mode))
 			{
 				int s = readlink(ret.substr(0, slashPos).c_str(), buf, sizeof(buf));
+				buf[s] = 0;
 				if (s > 0 && buf[0] != '/' && buf[0] != '~')
 				{
 					// relative
@@ -1036,6 +1037,11 @@
 				{
 					// absolute
 					ret = buf + ret.substr(slashPos, ret.size() - slashPos);
+
+					// start again at the beginning in case the path returned also
+					// has symlinks. For example if using /etc/alternatives this will
+					// be the case
+					s = 0;
 				}
 				slashPos = s;
 			}

gryphon