commit 8d1b26aebe451447ed2ec6fbfb370cd7017db00b
parent 5bbe51ee46d5c6bd858d1fb66191ec04af47fb92
Author: Oswald Buddenhagen <ossi@users.sf.net>
Date: Fri, 26 Mar 2004 16:34:29 +0000
excessively secure temp file creation.
more user friendliness.
Diffstat:
| M | get-cert | | | 30 | +++++++++++++++++++++++++----- |
1 file changed, 25 insertions(+), 5 deletions(-)
diff --git a/get-cert b/get-cert
@@ -21,10 +21,29 @@
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
+if [ $# != 1 ]; then
+ echo "Usage: $0 <host>" >&2
+ exit 1
+fi
+
HOST=$1
-TMPFILE=/tmp/get-cert.$$
-ERRFILE=/tmp/get-cert-err.$$
-CERTFILE=/tmp/cert.$$
+
+seed=`date '+%s'`
+try=0
+while :; do
+ TMPDIR=/tmp/get-cert.$$.$seed
+ mkdir $TMPDIR 2> /dev/null && break
+ if [ $try = 1000 ]; then
+ echo "Cannot create temporary directory." >&2
+ exit 1
+ fi
+ try=`expr $try + 1`
+ seed=`expr \( \( $seed \* 1103515245 \) + 12345 \) % 2147483648`
+done
+
+TMPFILE=$TMPDIR/get-cert
+ERRFILE=$TMPDIR/get-cert-err
+CERTFILE=$TMPDIR/cert
echo QUIT | openssl s_client -connect $HOST:993 -showcerts \
> $TMPFILE 2> $ERRFILE
@@ -36,7 +55,8 @@ if test -s $CERTFILE ; then
cat $CERTFILE
echo -----END CERTIFICATE-----
else
- echo "Couldn't retrieve certificate. Openssl reported the following errors"
+ echo "Couldn't retrieve certificate. openssl reported the following errors:"
cat $ERRFILE
fi
-/bin/rm -f $TMPFILE $ERRFILE $CERTFILE
+
+rm -r $TMPDIR
