From acc8625c563a3b05b1cbfdbc94d39870c7a71b42 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Anton=20Luka=20=C5=A0ijanec?= <anton@sijanec.eu>
Date: Wed, 29 Nov 2023 11:05:18 +0100
Subject: jelka

---
 prog/jelka/chroot.sh | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100755 prog/jelka/chroot.sh

(limited to 'prog/jelka/chroot.sh')

diff --git a/prog/jelka/chroot.sh b/prog/jelka/chroot.sh
new file mode 100755
index 0000000..3d92d2c
--- /dev/null
+++ b/prog/jelka/chroot.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+set -xeuo pipefail
+mount -t tmpfs -o nr_blocks=1,mode=0755 tmp $2
+if [ x$1 = xstart ]
+then
+	for i in /bin /dev/null /etc /lib /lib64 /usr
+	do
+		[ -d $i ] && mkdir -p $2/$i || { mkdir -p $2/`rev <<<$i | cut -d/ -f2- | rev` && touch $2/$i; }
+		mount --bind -onosuid,ro $i $2/$i
+	done
+	mkdir -p $2/jelka
+	mount --bind -onosuid,ro . $2/jelka
+	mkdir -p $2/dev/shm
+else
+	mount | grep $2 | cut -d\  -f3 | xargs -I '{}' umount '{}'
+fi
-- 
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