From 8073c5d103ca766d8115c026746ce8fcb898f5e9 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 13 Dec 2007 05:27:09 +0000
Subject: Bug #201771 - Make unpack() detect common errors such as absolute
 paths that start with ${DISTDIR} and die an appropriate error message. Thanks
 to grobian for this patch.

svn path=/main/trunk/; revision=8896
---
 bin/ebuild.sh | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/bin/ebuild.sh b/bin/ebuild.sh
index 50222eb6e..ff0dd78c4 100755
--- a/bin/ebuild.sh
+++ b/bin/ebuild.sh
@@ -313,15 +313,16 @@ unpack() {
 		y=${x%.*}
 		y=${y##*.}
 
-		myfail="${x} does not exist"
-		if [ "${x:0:2}" = "./" ] ; then
+		if [[ ${x} == "./"* ]] ; then
 			srcdir=""
+		elif [[ ${x} == ${DISTDIR%/}/* ]] ; then
+			die "Arguments to unpack() cannot begin with \${DISTDIR}."
+		elif [[ ${x} == "/"* ]] ; then
+			die "Arguments to unpack() cannot be absolute"
 		else
 			srcdir="${DISTDIR}/"
 		fi
-		[[ ${x} == ${DISTDIR}* ]] && \
-			die "Arguments to unpack() should not begin with \${DISTDIR}."
-		[ ! -s "${srcdir}${x}" ] && die "$myfail"
+		[[ ! -s ${srcdir}${x} ]] && die "${x} does not exist"
 
 		myfail="failure unpacking ${x}"
 		case "${x##*.}" in
-- 
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