set sysctl ${topdir}sysctl

set test "sysctl write from command line"
spawn $sysctl --dry-run kernel.hostname=procps-test
expect_pass "$test" "kernel.hostname = procps-test"

set test "sysctl write from command line using slash"
spawn $sysctl --dry-run kernel/hostname=procps-test
expect_pass "$test" "kernel.hostname = procps-test"

set test "sysctl write from configuration file"
spawn $sysctl --dry-run -f ${topdir}testsuite/sysctl_glob_test.conf
expect_pass "$test" "fs.protected_fifos = 2\\s+fs.protected_symlinks = 2\\s+fs.protected_hardlinks = 1"

set test "sysctl write from file with slashes"
spawn $sysctl --dry-run -f ${topdir}testsuite/sysctl_slash_test.conf
expect_pass "$test" "kernel.hostname = procps-test"

set hostname_file "/proc/sys/kernel/hostname"
if {[file exists ${hostname_file}]} {
  if {[file writable ${hostname_file}]} {
    unsupported "sysctl write: hostname file is writable"
  } else {
    set test "sysctl write unwritable file"
    spawn $sysctl -q kernel.hostname=procpstest
    expect_pass "$test" "sysctl: permission denied on key \"kernel.hostname\"\\s*$"
    expect_spawn_retval "$test" 1

    set test "sysctl write unwritable file ignored"
    spawn $sysctl -q -- -kernel.hostname=procpstest
    expect_pass "$test" "sysctl: permission denied on key \"kernel.hostname\", ignoring\\s*$"
    expect_spawn_retval "$test" 0
  }
} else {
  unsupported "sysctl write: hostname file does not exist"
}