procps/testsuite/sysctl.test/sysctl_read.exp

#
# Dejagnu tests for sysctl (read only) - part of procps
#
set sysctl ${topdir}sysctl
set hostname [ exec cat "/proc/sys/kernel/hostname" ]

set test "sysctl with no arguments"
spawn $sysctl
expect_pass "$test" "^\\s+Usage:\\s+\(lt-\)?sysctl \\\[options\\\] \\\[variable\\\[=value\\\] \.\.\.\\\]"

set test "sysctl reading a variable using slash delimiter"
spawn $sysctl kernel/hostname
expect_pass "$test" "kernel.hostname = ${hostname}"

set test "sysctl reading a variable using dot delimiter"
spawn $sysctl kernel.hostname
expect_pass "$test" "kernel.hostname = ${hostname}"

set test "sysctl reading a variable suppress key"
spawn $sysctl -n kernel.hostname
expect_pass "$test" "${hostname}"

set test "sysctl reading a variable suppress value"
spawn $sysctl -N kernel.hostname
expect_pass "$test" "kernel.hostname"

set test "sysctl reading using a path traversal"
spawn $sysctl /../../etc/passwd
expect_pass "$test" "sysctl: Path is not under /proc/sys/: /proc/sys//../../etc/passwd"