1 files changed, 85 insertions, 0 deletions
diff --git a/tests/ts/lsfd/lsfd-functions.bash b/tests/ts/lsfd/lsfd-functions.bash
new file mode 100644
index 0000000..d9a3595
--- /dev/null
+++ b/tests/ts/lsfd/lsfd-functions.bash
@@ -0,0 +1,85 @@
+#!/bin/bash
+#
+# Copyright (C) 2021 Masatake YAMATO <yamato@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 exit-status used in a test target.
+readonly ENOSYS=17
+readonly EPERM=18
+readonly ENOPROTOOPT=19
+readonly EPROTONOSUPPORT=20
+readonly EACCESS=21
+
+function lsfd_wait_for_pausing {
+	ts_check_prog "sleep"
+
+	local PID=$1
+	until [[ $(ps --no-headers -ostat "${PID}") =~ S.* ]]; do
+		sleep 1
+	done
+}
+
+function lsfd_compare_dev {
+    local LSFD=$1
+    local FILE=$2
+    local EXPR=$3
+
+    ts_check_prog "grep"
+    ts_check_prog "expr"
+    ts_check_prog "stat"
+
+    local DEV=$("${LSFD}" --raw -n -o DEV -Q "${EXPR}")
+    echo 'DEV[RUN]:' $?
+    local MAJ=${DEV%:*}
+    local MIN=${DEV#*:}
+    local DEVNUM=$(( ( MAJ << 8 ) + MIN ))
+    local STAT_DEVNUM=$(stat -c "%d" "$FILE")
+    echo 'STAT[RUN]:' $?
+    if [ "${DEVNUM}" == "${STAT_DEVNUM}" ]; then
+	echo 'DEVNUM[STR]:' 0
+    else
+	echo 'DEVNUM[STR]:' 1
+	# Print more information for debugging
+	echo 'DEV:' "${DEV}"
+	echo 'MAJ:MIN' "${MAJ}:${MIN}"
+	echo 'DEVNUM:' "${DEVNUM}"
+	echo 'STAT_DEVNUM:' "${STAT_DEVNUM}"
+    fi
+}
+
+lsfd_strip_type_stream()
+{
+    # lsfd changes the output of NAME column for a unix stream socket
+    # whether the kernel reports it is a "UNIX-STREAM" socket or a
+    # "UNIX" socket. For "UNIX", lsfd appends "type=stream" to the
+    # NAME column. Let's delete the appended string before comparing.
+    sed -e 's/ type=stream//'
+}
+
+lsfd_make_state_connected()
+{
+    # Newer kernels report the states of unix dgram sockets created by
+    # sockerpair(2) are "connected" via /proc/net/unix though Older
+    # kernels report "unconnected".
+    #
+    # Newer kernels report the states of unix dgram sockets already
+    # connect(2)'ed are "connected", too.
+    #
+    # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83301b5367a98c17ec0d76c7bc0ccdc3c7e7ad6d
+    #
+    # This rewriting adjusts the output of lsfd running on older kernels
+    # to that on newer kernels.
+    sed -e 's/state=unconnected/state=connected/'
+}