From c1f551e00db12429b9df006ec200a56845d0f753 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Tue, 27 Jul 2021 17:54:52 +0200
Subject: whereispatch: Ensure patch path does not contain newlines

---
 bin/whereispatch | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/bin/whereispatch b/bin/whereispatch
index 1eea64a..0300663 100755
--- a/bin/whereispatch
+++ b/bin/whereispatch
@@ -2,7 +2,9 @@
 
 # whereispatch -- print corresponding patch directory
 
-root=/home/john/patches
+IFS='
+'
+: ${PATCHROOT:=/home/$USER/patches}
 
 case "$PWD" in
 /usr/pkgsrc/*)	dir=$(pwd | cut -d/ -f4,5) || dir= ;;
@@ -17,4 +19,14 @@ if [ -z "$dir" ]; then
 	read dir </dev/tty
 fi
 
-echo "$root/$dir"
+dir=${dir%/*.pkgwcp}
+dir=$PATCHROOT/$dir
+
+n=0
+for parts in $dir; do : $((n++)); done
+if [ $n -gt 1 ]; then
+	echo "${0##*/}: newlines in patch path" 1>&2
+	exit 1
+fi
+
+echo $dir
-- 
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