# -*- shell-script -*-
HAVE_OPENSSL='@HAVE_OPENSSL@'
OPENSSL_SUPPORTS_SNI='@OPENSSL_SUPPORTS_SNI@'
HAVE_UNBOUND='@HAVE_UNBOUND@'
EGREP='@EGREP@'
PYTHON3='@PYTHON3@'
CFLAGS='@CFLAGS@'

# PYTHONCOERCECLOCALE=0 disables the Unicode compatibility warning on
# stderr that breaks almost any Python3 test (PEP 0538)
PYTHONCOERCECLOCALE=0
export PYTHONCOERCECLOCALE

PYTHONPATH=$abs_top_srcdir/python:$abs_top_builddir/tests:$PYTHONPATH
export PYTHONPATH

PYTHONIOENCODING=utf_8
export PYTHONIOENCODING

# PYTHONDONTWRITEBYTECODE=yes keeps Python from creating .pyc and .pyo
# files.  Creating .py[co] works OK for any given version of Open
# vSwitch, but it causes trouble if you switch from a version with
# foo/__init__.py into an (older) version with plain foo.py, since
# foo/__init__.pyc will cause Python to ignore foo.py.
PYTHONDONTWRITEBYTECODE=yes
export PYTHONDONTWRITEBYTECODE

# Test whether the current working directory name is all ASCII
# characters.  Some Python code doesn't tolerate non-ASCII characters
# in filenames very well, so if the current working directory is
# non-ASCII then we skip the tests that run those programs.
#
# This would be just papering over a real problem, except that the
# tests that we skip are launched from initscripts and thus normally
# run in system directories with ASCII names.  (This problem only came
# up at all because the Debian autobuilders do build in a top-level
# directory named /«BUILDDIR».)
case `pwd | tr -d ' -~'` in
    '') non_ascii_cwd=false ;;
    *) non_ascii_cwd=true
esac

# Enable malloc debugging features.
case `uname` in
Linux)
    MALLOC_PERTURB_=165; export MALLOC_PERTURB_
    MALLOC_CHECK_=2; export MALLOC_CHECK_
    ;;
FreeBSD)
    case `uname -r` in
    [789].*)
        MALLOC_CONF=AJ
        ;;
    1[01].*)
        MALLOC_CONF=abort:true,junk:true,redzone:true
        ;;
    *)
        MALLOC_CONF=abort:true,junk:true
        ;;
    esac
    export MALLOC_CONF
esac

# The name of loopback interface 
case `uname` in
Linux)
    LOOPBACK_INTERFACE=lo
    ;;
FreeBSD|NetBSD)
    LOOPBACK_INTERFACE=lo0
    ;;
esac

# Check for platform.
case `uname` in
MINGW*|MSYS*)
    IS_WIN32="yes"
    IS_BSD="no"
    ;;
FreeBSD|NetBSD)
    IS_WIN32="no"
    IS_BSD="yes"
    ;;
*)
    IS_WIN32="no"
    IS_BSD="no"
    ;;
esac

if test "$IS_WIN32" = yes; then
    # enables legacy windows unicode printing needed for Python3 compatibility
    # with the Python2 tests
    PYTHONLEGACYWINDOWSFSENCODING=true
    export PYTHONLEGACYWINDOWSFSENCODING
    PYTHONLEGACYWINDOWSSTDIO=true
    export PYTHONLEGACYWINDOWSSTDIO
fi

# Check for CPU architecture
case `uname -m` in
aarch64)
    IS_ARM64="yes"
    ;;
*)
    IS_ARM64="no"
    ;;
esac

# Check whether to run IPv6 tests.
$PYTHON3 -c '
import errno
import socket
import sys
try:
    socket.socket(family=socket.AF_INET6).bind(("::1", 0, 0, 0))
except socket.error as e:
    if e.errno == errno.EAFNOSUPPORT or errno.EADDRNOTAVAIL:
        sys.exit(2)
    raise
'
case $? in
    0) HAVE_IPV6=yes ;;
    2) HAVE_IPV6=no ;;
    *) echo "$0: unexpected error probing $PYTHON3 for IPv6 support" >&2 ;;
esac

# Look for a python L7 library 'LIB' in the system. If it is found, defines
# HAVE_LIB="yes", otherwise HAVE_LIB="no"
find_l7_lib()
{
    set +x
    var=HAVE_`echo "$1" | tr '[a-z]' '[A-Z]'`
    result=$($PYTHON3 $abs_top_srcdir/tests/test-l7.py --help | grep "$1")
    if test "x${result}" != x; then
        eval ${var}="yes"
    else
        eval ${var}="no"
    fi
}

# HAVE_FTP
find_l7_lib ftp
# HAVE_TFTP
find_l7_lib tftp

# Look for a commnand in the system. If it is found, defines
# HAVE_COMMAND="yes", otherwise HAVE_COMMAND="no".
find_command()
{
    which $1 > /dev/null 2>&1
    status=$?
    var=HAVE_`echo "$1" | tr '[a-z]' '[A-Z]'`
    if test "$status" = "0"; then
        eval ${var}="yes"
    else
        eval ${var}="no"
    fi
}

# Set HAVE_NC
find_command nc

# Determine correct netcat option to quit on stdin EOF
if nc --version 2>&1 | grep -q nmap.org; then
    # Nmap netcat
    NC_EOF_OPT="--send-only -w 5"
else
    # BSD netcat
    NC_EOF_OPT="-q 1 -w 5"
fi

# Set HAVE_TC
find_command tc

# Set HAVE_TCPDUMP
find_command tcpdump

# Set HAVE_LFTP
find_command lftp

CURL_OPT="-g -v --max-time 1 --retry 2 --retry-delay 1 --connect-timeout 1"

# Determine whether "diff" supports "normal" diffs.  (busybox diff does not.)
if echo xyzzy | diff /dev/null - | grep '^>' >/dev/null; then
    DIFF_SUPPORTS_NORMAL_FORMAT=yes
else
    DIFF_SUPPORTS_NORMAL_FORMAT=no
fi

# Check whether UB Sanitizer is being used.
case "$CFLAGS" in
*fsanitize=undefined*)
    TESTS_WITH_UBSAN=yes
    ;;
*)
    TESTS_WITH_UBSAN=no
    ;;
esac

# Turn off proxies.
unset http_proxy
unset https_proxy
unset ftp_proxy
unset no_proxy
unset HTTP_PROXY
unset HTTPS_PROXY
unset FTP_PROXY
unset NO_PROXY

# Prevent logging to syslog during tests.
OVS_SYSLOG_METHOD=null
export OVS_SYSLOG_METHOD

# Set default timeout for control utils
OVS_CTL_TIMEOUT=30
export OVS_CTL_TIMEOUT

# Add some default flags to make the tests run better under Address
# Sanitizer, if it was used for the build.
#
# We disable leak detection because otherwise minor leaks that don't
# matter break everything.
ASAN_OPTIONS=detect_leaks=0:abort_on_error=true:log_path=asan:$ASAN_OPTIONS
export ASAN_OPTIONS

# Add some default flags for UndefinedBehaviorSanitizer, if it was used
# for the build.
UBSAN_OPTIONS=print_stacktrace=1:halt_on_error=true:log_path=ubsan:$UBSAN_OPTIONS
export UBSAN_OPTIONS

# Check whether Python test requirements are available.
REQUIREMENT_PATH=$abs_top_srcdir/python/test_requirements.txt $PYTHON3 -c '
import os
import pathlib
import pkg_resources
import sys

with pathlib.Path(os.path.join(os.getenv("REQUIREMENT_PATH"))).open() as reqs:
    for req in pkg_resources.parse_requirements(reqs):
        try:
            pkg_resources.require(str(req))
        except pkg_resources.DistributionNotFound:
            sys.exit(2)
'
case $? in
    0) HAVE_PYTEST=yes ;;
    2) HAVE_PYTEST=no ;;
    *) echo "$0: unexpected error probing Python unit test requirements" >&2 ;;
esac