c_rehash hack for FreeBSD

c_rehash

#!/bin/sh

if [ $# -ne 1 ]; then
  echo "${0} <directory of PEMs>"
  exit 1
fi

certdir=${1}
if [ -z "${certdir}" ]; then
  echo "Must specify path to directory of PEMs"
  exit 1
fi

if [ ! -d "${certdir}" ]; then
  echo "Directory does not exist"
  exit 1
fi

(
  cd ${1} &&
    for f in *.pem ; do
      ln -s ${f} $(openssl x509 -hash -noout -in ${f}).0
    done
)