1 files changed, 93 insertions, 0 deletions
diff --git a/tests/ts/mount/rlimit b/tests/ts/mount/rlimit
new file mode 100755
index 0000000..50d9153
--- /dev/null
+++ b/tests/ts/mount/rlimit
@@ -0,0 +1,93 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2007 Karel Zak <kzak@redhat.com>
+#
+# This file is part of util-linux.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+
+#
+# The /etc/mtab file should not be modified if RLIMIT_FSIZE (ulimit -f)
+# is too low, otherwise the file could be corrupted (incomplete write).
+# The [u]mount(8) has to block SIGXFSZ and check if all writes and fflush
+# calls are successful.
+#
+
+TS_TOPDIR="${0%/*}/../.."
+TS_DESC="rlimit-fsize"
+
+. $TS_TOPDIR/functions.sh
+ts_init "$*"
+
+ts_check_test_command "$TS_CMD_MOUNT"
+ts_check_test_command "$TS_CMD_UMOUNT"
+ts_check_test_command "$TS_HELPER_MD5"
+
+ts_skip_nonroot
+ts_check_losetup
+ts_check_prog "mkfs.ext2"
+
+has_mtab=$( ts_has_mtab_support )
+[ "$has_mtab" == "yes" ] || ts_skip "mtab unsupported"
+
+[ -L /etc/mtab ] && ts_skip "mtab is symlink"
+[ "$(stat --format '%s' /etc/mtab)" -gt "1024" ] || ts_skip "mtab is too small"
+
+function mtab_checksum()
+{
+	"$TS_HELPER_MD5" < /etc/mtab
+}
+
+ts_device_init
+DEVICE=$TS_LODEV
+
+mkfs.ext2 $DEVICE &> /dev/null || ts_die "Cannot make ext2 on $DEVICE"
+
+
+ts_init_subtest "mount"
+OLD_SUM=$(mtab_checksum)
+[ -d "$TS_MOUNTPOINT" ] || mkdir -p $TS_MOUNTPOINT
+(
+	ulimit -f 1
+	$TS_CMD_MOUNT $DEVICE $TS_MOUNTPOINT
+) &> /dev/null
+NEW_SUM=$(mtab_checksum)
+[ $NEW_SUM = $OLD_SUM ] && echo "OK: mtab unmodified by mount" >> $TS_OUTPUT
+ts_is_mounted $DEVICE || ts_die "Cannot find $DEVICE in /proc/mounts"
+$TS_CMD_UMOUNT $TS_MOUNTPOINT &> /dev/null
+ts_is_mounted $DEVICE && ts_die "$DEVICE is still mounted"
+ts_finalize_subtest
+
+
+ts_init_subtest "umount"
+[ -d "$TS_MOUNTPOINT" ] || mkdir -p $TS_MOUNTPOINT
+$TS_CMD_MOUNT $DEVICE $TS_MOUNTPOINT &> /dev/null
+ts_is_mounted $DEVICE || ts_die "Cannot find $DEVICE in /proc/mounts"
+OLD_SUM=$(mtab_checksum)
+(
+	ulimit -f 1
+	$TS_CMD_UMOUNT $TS_MOUNTPOINT &> /dev/null
+) &> /dev/null
+NEW_SUM=$(mtab_checksum)
+[ $NEW_SUM = $OLD_SUM ] && echo "OK: mtab unmodified by umount" >> $TS_OUTPUT
+if ts_is_mounted $DEVICE; then
+	echo "FAIL: $DEVICE is still mounted" >> $TS_OUTPUT
+	$TS_CMD_UMOUNT $TS_MOUNTPOINT &> /dev/null
+else
+	# repair /etc/mtab
+	$TS_CMD_UMOUNT --fake $TS_MOUNTPOINT &> /dev/null
+fi
+ts_finalize_subtest
+
+ts_log "Success"
+ts_finalize