58 lines
1.2 KiB
Bash
58 lines
1.2 KiB
Bash
#!/bin/sh
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# env
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# Written in 2020 by Lucas
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# CC0 1.0 Universal/Public domain - No rights reserved
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#
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# To the extent possible under law, the author(s) have dedicated all
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# copyright and related and neighboring rights to this software to the
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# public domain worldwide. This software is distributed without any
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# warranty. You should have received a copy of the CC0 Public Domain
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# Dedication along with this software. If not, see
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# <http://creativecommons.org/publicdomain/zero/1.0/>.
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usage()
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{
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cat - <<EOF >&2
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Usage:
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${0##*/} [-d digits] [-p period] [-a algorithm]
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${0##*/} [-H counter] [-d digits] [-a algorithm]
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EOF
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exit 1
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}
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err()
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{
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printf "%s: %s\n" "${0##*/}" "$*" >&2
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exit 1
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}
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algorithm=
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counter=
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digits=
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period=
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type=totp
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while getopts a:d:H:p: flag; do
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case $flag in
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a) algorithm=$OPTARG
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;;
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d) digits=$OPTARG
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;;
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H) counter=$OPTARG
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type=hotp
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;;
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p) period=$OPTARG
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;;
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*) usage
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;;
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esac
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done
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printf "otpauth://%s/" "$type"
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printf "?secret="
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cat - | tr -d "\n"
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[ -n "$algorithm" ] && printf "&algorithm=%s" "$algorithm"
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[ -n "$counter" ] && printf "&counter=%s" "$counter"
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[ -n "$digits" ] && printf "&digits=%s" "$digits"
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[ -n "$period" ] && printf "&period=%s" "$period"
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printf "\n"
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