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|
#!/bin/bash
# Copyright (c) 2012 Peter Palfrader
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
usage()
{
cat << EOF
usage: $0 -m <MSG>
$0 -w <essid> <password>
$0 [options] [<file>]
OPTIONS:
-m <MSG> Use MSG instead of reading input from file/stdin.
-M Add a/Include the trailing newline for single-line data.
-w <essid> <password> Create a wifi qr code.
EOF
}
msg=""
have_msg=0
multi_line=0
wifi=0
while getopts "hm:Mw" OPTION
do
case $OPTION in
h)
usage
exit
;;
M)
multi_line=1
;;
m)
have_msg=1
msg="$OPTARG"
;;
w)
wifi=1
;;
*)
usage >&2
exit 1
;;
esac
done
shift $(($OPTIND - 1))
img="$(mktemp --suffix .png)"
trap "rm -f '$img'" EXIT
if [ "$wifi" -gt 0 ]; then
if [ "$#" -ne 2 ]; then
usage >&2
exit 1
fi
essid="$1"; shift
password="$1"; shift
echo "WIFI:T:WPA;S:${essid};P:${password};;" | qrencode -s 5 -l H -o "$img"
elif [ "$have_msg" -eq 0 ]; then
if [ "$#" -gt 1 ]; then
usage >&2
exit 1
fi
if [ "$#" -eq 0 ]; then
stdin="$(mktemp)"
trap "rm -f '$img' '$stdin'" EXIT
cat > "$stdin"
set -- "$stdin"
fi
fn="$1"; shift
if [ "$multi_line" = 1 ] || [ "$(cat "$fn" | wc -l)" -gt 1 ] ; then
qrencode -s 5 -l H -o "$img" < "$fn"
else
echo -n $( cat "$fn" ) | qrencode -s 5 -l H -o "$img"
fi
else
echo -n "$msg" | qrencode -s 5 -l H -o "$img"
fi
display "$img"
# vim:set et:
# vim:set ts=4:
# vim:set shiftwidth=4:
|
