76 lines
1.7 KiB
Bash
Executable File
76 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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# shellgopher - simple shell script based gopher server
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# Copyright (C) 2021 randomuser
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# This program is free software: you can redistribute it
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# and/or modify it under the terms of the GNU Affero General
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# Public License as published by the Free Software Foundation,
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# either version 3 of the License, or (at your option) any
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# later version.
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# This program is distributed in the hope that it will be
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# useful, but WITHOUT ANY WARRANTY; without even the implied
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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# PURPOSE. See theGNU General Public License for more details.
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# You should have received a copy of the GNU Affero General
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# Public License along with this program. If not, see
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# <https://www.gnu.org/licenses/>.
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set -x
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createsrv () {
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# $1 - port
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# $2 - write location
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# $3 - read location
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[ -p "$2" ] || mkfifo "$2"
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[ -e "$3" ] || touch "$3"
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nc -l "$1" <"$2" >>"$3" & exec 3>"$2"
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}
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die () {
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# $1 - error message
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printf "%s\n" $1
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exit 1
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}
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checkuid () {
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[ $(whoami) = "root" ] && \
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die "You must execute shellgopher as root."
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}
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writefile () {
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# $1 - file
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foo cat "$1" >&3
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}
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ioblock () {
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# $1 - io to block
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while [ "$(wc -l $1 | awk -F' ' '{print $1}')" -eq 0 ]; do
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:
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done
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}
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ioflush () {
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# $1 - io to flush
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rm "$1"
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touch "$1"
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}
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mktmp () {
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t=$(mktemp)
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rm "$t"
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mkdir "$t"
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printf "%s\n" "$t"
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}
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tmplocation=$(mktmp)
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writelocation="${tmplocation}/write"
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readlocation="${tmplocation}/read"
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checkuid
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createsrv 70 "${writelocation}" "${readlocation}"
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printf "server created\n"
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while true; do
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ioblock "${readlocation}"
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printf "iHello there! This is a test\tfake\t\t0\r\n.\r\n" >&3
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printf "file served\n"
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ioflush "${readlocation}"
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done
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exit 1
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