lobo/isync
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excessively secure temp file creation.

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more user friendliness.
This commit is contained in:
Oswald Buddenhagen 2004-03-26 16:34:29 +00:00
parent 5bbe51ee46
commit 8d1b26aebe
1 changed files with 25 additions and 5 deletions
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30
get-cert
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@ -21,10 +21,29 @@
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # 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 HOST=$1
TMPFILE=/tmp/get-cert.$$
ERRFILE=/tmp/get-cert-err.$$ seed=`date '+%s'`
CERTFILE=/tmp/cert.$$ try=0
while :; do
TMPDIR=/tmp/get-cert.$$.$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 \ echo QUIT | openssl s_client -connect $HOST:993 -showcerts \
> $TMPFILE 2> $ERRFILE > $TMPFILE 2> $ERRFILE
@ -36,7 +55,8 @@ if test -s $CERTFILE ; then
cat $CERTFILE cat $CERTFILE
echo -----END CERTIFICATE----- echo -----END CERTIFICATE-----
else else
echo "Couldn't retrieve certificate. Openssl reported the following errors" echo "Couldn't retrieve certificate. openssl reported the following errors:"
cat $ERRFILE cat $ERRFILE
fi fi
/bin/rm -f $TMPFILE $ERRFILE $CERTFILE
rm -r $TMPDIR