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use mktemp(1) to safely create the temporary file.

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fixes [security/12915] from David Sainty.
This commit is contained in:
lukem 2001-06-18 11:10:25 +00:00
parent e65b619faa
commit c72849267d
1 changed files with 6 additions and 7 deletions
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13
usr.bin/locate/locate/updatedb.sh
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@ -1,6 +1,6 @@
#!/bin/sh #!/bin/sh
# #
# $NetBSD: updatedb.sh,v 1.4 2001/05/14 14:58:59 jdolecek Exp $ # $NetBSD: updatedb.sh,v 1.5 2001/06/18 11:10:25 lukem Exp $
# #
# Copyright (c) 1989, 1993 # Copyright (c) 1989, 1993
# The Regents of the University of California. All rights reserved. # The Regents of the University of California. All rights reserved.
@ -42,13 +42,12 @@
SRCHPATHS="/" # directories to be put in the database SRCHPATHS="/" # directories to be put in the database
LIBDIR="/usr/libexec" # for subprograms LIBDIR="/usr/libexec" # for subprograms
# for temp files # for temp files
export TMPDIR="${TMPDIR:-/tmp}"
FCODES="/var/db/locate.database" # the database FCODES="/var/db/locate.database" # the database
PATH="/bin:/usr/bin" PATH="/bin:/usr/bin"
FILELIST="$TMPDIR/locate.list.$$" FILELIST=`mktemp -t locate.list` || exit 1
trap 'rm -f $FILELIST' 0 trap "rm -f $FILELIST" EXIT
trap 'rm -f $FILELIST; exit 1' 1 2 3 15 trap "rm -f $FILELIST; exit 1" INT QUIT TERM
# Make a file list and compute common bigrams. # Make a file list and compute common bigrams.
# Entries of each directory shall be sorted (find -s). # Entries of each directory shall be sorted (find -s).
@ -57,7 +56,7 @@ trap 'rm -f $FILELIST; exit 1' 1 2 3 15
# find -s $SRCHPATHS -print \ # find -s $SRCHPATHS -print \
find -s $SRCHPATHS \( ! -fstype local -o -fstype fdesc -o -fstype kernfs \) \ find -s $SRCHPATHS \( ! -fstype local -o -fstype fdesc -o -fstype kernfs \) \
-a -prune -o -print \ -a -prune -o -print \
>$FILELIST >> "$FILELIST"
BIGRAMS="`$LIBDIR/locate.bigram <$FILELIST`" BIGRAMS="`$LIBDIR/locate.bigram <$FILELIST`"
@ -65,6 +64,6 @@ BIGRAMS="`$LIBDIR/locate.bigram <$FILELIST`"
if [ -z "$BIGRAMS" ]; then if [ -z "$BIGRAMS" ]; then
echo 'locate: updatedb failed' >&2 echo 'locate: updatedb failed' >&2
else else
$LIBDIR/locate.code "$BIGRAMS" <$FILELIST >$FCODES $LIBDIR/locate.code $BIGRAMS <"$FILELIST" >$FCODES
chmod 644 $FCODES chmod 644 $FCODES
fi fi