89 lines
1.9 KiB
Bash
89 lines
1.9 KiB
Bash
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#!/bin/sh
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function help {
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echo "NAME"
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echo " $(basename $0) - import an OpenSSH key from a file or from stdin"
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echo ""
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echo "SYNOPSYS"
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echo " $(basename $0) -n NAME [-f FILE]"
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echo ""
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echo "OPTIONS"
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echo " -n, --name=KEYNAME"
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echo " The key name, e.g. \"id\", which would result in a private key file ~/.ssh/id_rsa,"
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echo " ~/.ssh/id_dsa, ~/.ssh/id_ecdsa or .ssh/id_ed25519 (depending on the key type)."
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echo ""
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echo " -f, --file=FILE"
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echo " The file containing the private key that will be imported. If this option is not"
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echo " specified, the private key will be read from stdin."
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echo ""
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echo " -h, --help"
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echo " Display this help message."
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echo ""
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echo "AUTHOR"
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echo " Written by Christian Ulrich, christian@ulrich.earth"
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}
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function import {
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local private_key="$1"
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local name="$2"
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local public_key=$(ssh-keygen -yf /dev/stdin <<< $private_key)
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local type=$(
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ssh-keygen -lf /dev/stdin <<< $public_key |
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rev |
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cut -d" " -f1 |
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rev |
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tr -d '()' |
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tr '[:upper:]' '[:lower:]')
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local private_key_file=~/.ssh/${name}_${type}
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local public_key_file=~/.ssh/${name}_${type}.pub
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echo "$private_key" > $private_key_file
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chmod 0600 $private_key_file
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echo "$public_key" > $public_key_file
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chmod 0644 $public_key_file
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echo "Successfully imported key."
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echo "Private key stored at ${private_key_file}"
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echo "Public key stored at ${public_key_file}"
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}
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function main {
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while [[ $# -gt 0 ]]; do
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local opt="$1"
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case $opt in
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-n|--name)
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local name="$2"
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shift
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shift
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;;
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-f|--file)
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local file_path="$2"
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shift
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shift
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;;
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-h|--help)
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help
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return 0
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;;
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*)
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help
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return 1
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esac
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done
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if [ -z "$name" ]; then
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help
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return 1
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fi
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if [ -z "$file_path" ]; then
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local private_key=$(</dev/stdin)
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else
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local private_key=$(<$file_path)
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fi
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import "$private_key" "$name"
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}
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set -e
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main "$@"
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