From 280b7cb63abaa3f6132a37a3ce7ad994f2ec7b52 Mon Sep 17 00:00:00 2001
From: Ingo Weinhold <ingo_weinhold@gmx.de>
Date: Fri, 7 Jun 2013 02:01:46 +0200
Subject: [PATCH] libroot_build: Improve/fix get_path()

In fs_attr_generic() get_path() is used with a symlink FD, which didn't
work at all. Handle symlink descriptors explicitly now.
---
 src/build/libroot/fs.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/build/libroot/fs.cpp b/src/build/libroot/fs.cpp
index 5a9ebdfb09..d15aca0053 100644
--- a/src/build/libroot/fs.cpp
+++ b/src/build/libroot/fs.cpp
@@ -411,6 +411,18 @@ BPrivate::get_path(int fd, const char *name, string &path)
 		if (!descriptor)
 			return B_FILE_ERROR;
 
+		// Handle symlink descriptors here explicitly, so this function can be
+		// used more flexibly.
+		if (SymlinkDescriptor* symlinkDescriptor
+				= dynamic_cast<SymlinkDescriptor*>(descriptor)) {
+			path = symlinkDescriptor->path;
+			if (name == NULL)
+				return B_OK;
+			path += '/';
+			path += name;
+			return B_OK;
+		}
+
 		// get node ref for the descriptor
 		NodeRef ref;
 		status_t error = descriptor->GetNodeRef(ref);