mDNSMacOSX/Tests/BATS Scripts/bats_test_proxy.sh

   1 #!/bin/sh
   2 #
   3 # bats_test_proxy.sh
   4 # mDNSResponder Tests
   5 #
   6 # Copyright (c) 2019 Apple Inc. All rights reserved.
   7
   8 # tests whether the state dump will create at most MAX_NUM_DUMP_FILES, to avoid wasting too much space.
   9 base_test="dnssdutil dnsquery -s 127.0.0.1 -n apple.com -t a"
  10
  11 # Enable the proxy and test over TCP
  12 function test_proxy_tcp {
  13     test_proxy_on $base_test --tcp
  14     return $?
  15 }
  16
  17 # Enable the proxy and test over UDP
  18 function test_proxy_udp {
  19     test_proxy_on $base_test
  20     return $?
  21 }
  22
  23 # Test the proxy over TCP without enabling it (should fail)
  24 function test_noproxy_tcp {
  25     test_proxy $base_test --tcp
  26     if [ $? == 0 ]; then
  27         return 1;
  28     fi
  29     return 0
  30 }
  31
  32 # Test the proxy over UDP without enabling it (should fail)
  33 function test_noproxy_udp {
  34     test_proxy $base_test
  35     if [ $? == 0 ]; then
  36         return 1;
  37     fi
  38     return 0
  39 }
  40
  41 function test_proxy_on {
  42     local command_line="$*"
  43     local ret=1
  44
  45     # Enable the proxy
  46     dnssdutil dnsproxy -i lo0 &
  47     local dnssdutil_pid=$!
  48
  49     # See if that worked
  50     sleep 1
  51     local dnssdutil_pid_now=$(ps xa |sed -n -e 's/^ *\([0-9][0-9]*\).*$/\1/' -e "/$dnssdutil_pid/p")
  52     if [ $dnssdutil_pid != "$dnssdutil_pid_now" ]; then
  53         echo "Failed to enable DNS proxy $dnssdutil_pid $dnssdutil_pid_now."
  54         return 1
  55     fi
  56
  57     test_proxy $command_line
  58     ret=$?
  59
  60     # Disable the proxy and wait for that to finish
  61     kill -HUP $dnssdutil_pid
  62     wait $dnssdutil_pid
  63     return $ret
  64 }
  65
  66 function test_proxy {
  67     local command_line="$*"
  68     local ret=1
  69     # Try to do the DNS lookup
  70     local output=$($command_line |egrep "^End reason:")
  71     if [ "$output" = "End reason: received response" ]; then
  72         echo "Proxy is working: $output"
  73         ret=0
  74     else
  75         echo "Proxy is not working: $output"
  76     fi
  77     return $ret
  78 }
  79
  80 ret=0
  81 # Functions are put inside an array, use ($test) to evaluate it
  82 declare -a tests=("test_proxy_tcp"
  83                   "test_proxy_udp"
  84                   "test_noproxy_tcp"
  85                   "test_noproxy_udp")
  86 echo ""
  87 echo "----Proxy Test Start, $(date)----"
  88 for test in "${tests[@]}"; do
  89     echo "running $test:"
  90     ($test)
  91     if [[ $? -eq 0 ]]; then
  92         echo "passed"$'\n' # use $'\n' to print one more newline character
  93     else
  94         ret=1
  95         echo "failed"$'\n'
  96     fi
  97 done
  98 echo "----Proxy Test End, $(date)----"
  99 exit $ret
 100
 101 # Local Variables:
 102 # tab-width: 4
 103 # fill-column: 108
 104 # indent-tabs-mode: nil
 105 # End: