Show SSL certificate (from file or tcp) , certificate request and private key.

ssl_display

#!/bin/sh

if [ $# -lt 1 ]; then
	echo "$0 <host:port|SSL certificate|SSL certificate request|private key>" >&2
	exit 1
fi

src=$1
if [ -f $1 ]; then
	grep -q -- '-BEGIN CERTIFICATE-' $src && openssl x509 -in $src -text -noout
	grep -q -- '-BEGIN RSA PRIVATE KEY-' $src && openssl rsa -in $src -text -noout
	grep -q -- '-BEGIN CERTIFICATE REQUEST-' $src && openssl req -in $src -text -noout
else
	echo $src | grep -q ':' || src=$src:443
	openssl s_client -connect $src | sed -n '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' $stdout | openssl x509 -text -noout
fi