From a171fc1a4f37e37c1e80fe3e92a96b2bd37c8f98 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Wed, 20 Oct 2004 16:42:46 +0000
Subject: [PATCH] Use temp files in current directory, not /tmp, to reduce
security risk while running this script.
---
contrib/findoidjoins/make_oidjoins_check | 23 ++++++++++++++---------
1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/contrib/findoidjoins/make_oidjoins_check b/contrib/findoidjoins/make_oidjoins_check
index 74a2856778c..5106eb1bfd9 100755
--- a/contrib/findoidjoins/make_oidjoins_check
+++ b/contrib/findoidjoins/make_oidjoins_check
@@ -10,27 +10,32 @@
# Caution: you may need to use GNU awk.
AWK=${AWK:-awk}
-trap "rm -f /tmp/$$ /tmp/$$a /tmp/$$b" 0 1 2 3 15
+INPUTFILE="tmp$$a"
+DUPSFILE="tmp$$b"
+NONDUPSFILE="tmp$$c"
+rm -f $INPUTFILE $DUPSFILE $NONDUPSFILE
+
+trap "rm -f $INPUTFILE $DUPSFILE $NONDUPSFILE" 0 1 2 3 15
# Read input
-cat "$@" >/tmp/$$
+cat "$@" >$INPUTFILE
# Look for fields with multiple references.
-cat /tmp/$$ | cut -d' ' -f2 | sort | uniq -d >/tmp/$$a
-if [ -s /tmp/$$a ] ; then
+cat $INPUTFILE | cut -d' ' -f2 | sort | uniq -d >$DUPSFILE
+if [ -s $DUPSFILE ] ; then
echo "Ignoring these fields that link to multiple tables:" 1>&2
- cat /tmp/$$a 1>&2
+ cat $DUPSFILE 1>&2
fi
# Get the non-multiply-referenced fields.
-cat /tmp/$$ | while read LINE
+cat $INPUTFILE | while read LINE
do
set -- $LINE
- grep "^$2\$" /tmp/$$a >/dev/null 2>&1 || echo $LINE
-done >/tmp/$$b
+ grep "^$2\$" $DUPSFILE >/dev/null 2>&1 || echo $LINE
+done >$NONDUPSFILE
# Generate the output.
-cat /tmp/$$b |
+cat $NONDUPSFILE |
$AWK -F'[ \.]' '\
BEGIN \
{
--
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