#!/bin/sh
#
# SPDX-License-Identifier: ISC
#
# Copyright (c) 2010-2020 Todd C. Miller <Todd.Miller@sudo.ws>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
# Build a binary package using polypkg
# Usage: mkpkg [--debug] [--flavor flavor] [--platform platform] [--osversion ver]
#

# Make sure IFS is set to space, tab, newline in that order.
space=' '
tab='	'
nl='
'
IFS=" 	$nl"

# Parse arguments
usage="usage: mkpkg [--debug] [--flavor flavor] [--platform platform] [--osversion ver]"
debug=0
flavor=vanilla
crossbuild=false
while test $# -gt 0; do
    case "$1" in
	--debug)
	    set -x
	    debug=1
	    PPFLAGS="--debug${PPFLAGS+$space}${PPFLAGS}"
	    ;;
	--flavor=?*)
	    flavor=`echo "$1" | sed -n 's/^--flavor=\(.*\)/\1/p'`
	    PPVARS="${PPVARS}${PPVARS+$space}flavor=$flavor"
	    ;;
	--flavor)
	    if [ $# -lt 2 ]; then
		echo "$usage" 1>&2
		exit 1
	    fi
	    flavor="$2"
	    PPVARS="${PPVARS}${PPVARS+$space}flavor=$flavor"
	    shift
	    ;;
	--platform=?*)
	    arg=`echo "$1" | sed -n 's/^--platform=\(.*\)/\1/p'`
	    PPFLAGS="${PPFLAGS}${PPFLAGS+$space}--platform $arg"
	    ;;
	--platform)
	    if [ $# -lt 2 ]; then
		echo "$usage" 1>&2
		exit 1
	    fi
	    PPFLAGS="${PPFLAGS}${PPFLAGS+$space}--platform $2"
	    shift
	    ;;
	--osversion=?*)
	    arg=`echo "$1" | sed -n 's/^--osversion=\(.*\)/\1/p'`
	    osversion="$arg"
	    ;;
	--osversion)
	    if [ $# -lt 2 ]; then
		echo "$usage" 1>&2
		exit 1
	    fi
	    osversion="$2"
	    shift
	    ;;
	--build|--host)
	    crossbuild=true
	    configure_opts="${configure_opts}${configure_opts+$tab}$1"
	    ;;
	*)
	    # Pass unknown options to configure
	    configure_opts="${configure_opts}${configure_opts+$tab}$1"
	    ;;
    esac
    shift
done

scriptdir=`dirname $0`
configure="${scriptdir}/../configure"

: ${osversion="`$scriptdir/pp --probe`"}
test -n "$osversion" || exit 1
osrelease=`echo "$osversion" | sed -e 's/^[^0-9]*//' -e 's/-.*$//'`
: ${MAKE=make}

# If using GNU make, set number of jobs
if ${MAKE} --version 2>&1 | grep GNU >/dev/null; then
    NJOBS=0
    case "`uname`" in
	Darwin)
	    # macOS
	    NJOBS=`sysctl -n hw.ncpu`
	    ;;
	Linux)
	    if [ -r /proc/cpuinfo ]; then
		for c in `sed -n 's/^cpu cores[	 ]*: *//p' /proc/cpuinfo`; do
		    NJOBS=`expr $NJOBS + $c`
		done
	    fi
	    ;;
	SunOS)
	    # Solaris
	    if [ -x /usr/sbin/psrinfo ]; then
		NJOBS=`/usr/sbin/psrinfo | wc -l`
	    fi
	    ;;
	HP-UX)
	    NJOBS=`sar -Mu 1 1 | awk 'END {print NR-5}'`
	    ;;
	AIX)
	    NJOBS=`bindprocessor -q | awk '{print NF-4}'`
	    ;;
    esac
    if [ $NJOBS -gt 1 ]; then
	make_opts="-j$NJOBS"
    fi
fi

# Choose compiler options by osversion if not cross-compiling.
if [ "$crossbuild" = "false" ]; then
    case "$osversion" in
	macos*)
	    # Use clang on macOS if present
	    if [ -z "$CC" -a -x /usr/bin/clang ]; then
		CC=/usr/bin/clang; export CC
	    fi
	    ;;
    esac
fi

# Give configure a hint that we are building a package.
# Some libc functions are only available on certain OS revisions.
configure_opts="${configure_opts}${configure_opts+$tab}--enable-package-build"

# Some systems don't have a recent enough OpenSSL for the I/O log server.
with_openssl=false

# Not all systems have Python 3.
with_python=false

# Choose configure options by osversion.
# We use the same configure options as vendor packages when possible.
case "$osversion" in
    centos*|rhel*|f[0-9]*)
	case "$osversion" in
	    centos*|rhel*)
		osmajor=`sed -n -e 's/^.*release \([0-9]*\)[^0-9].*$/\1/p' /etc/redhat-release`
		if [ $osmajor -ge 4 ]; then
		    # RHEL 4 and up support SELinux
		    with_selinux=true
		    if [ $osmajor -ge 5 ]; then
			# RHEL 5 and up has audit support and uses a
			# separate PAM config file for "sudo -i".
			with_linux_audit=true
			with_pam_login=true
			if [ $osmajor -ge 6 ]; then
			    # RHEL 6 and above builds sudo with SSSD support
			    with_sssd=true
			    # RHEL 6 and above use /etc/sudo-ldap.conf
			    with_sudo_ldap_conf=true
			    # Encrypted remote I/O log support.
			    with_openssl=true
			fi
			if [ $osmajor -ge 7 ]; then
			    # Python plugins
			    with_python=true
			fi
		    fi
		fi
		;;
	    f[0-9]*)
		# XXX - investigate which features were in which fedora version
		with_selinux=true
		with_linux_audit=true
		with_pam_login=true
		with_sssd=true
		with_openssl=true
		;;
	esac

	if [ X"$with_selinux" = X"true" ]; then
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-selinux"
	fi
	if [ X"$with_linux_audit" = X"true" ]; then
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-linux-audit"
	    PPVARS="${PPVARS}${PPVARS+$space}linux_audit=1.4.0"
	fi
	if [ X"$with_pam_login" = X"true" ]; then
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-pam-login"
	fi
	if [ X"$with_sssd" = X"true" ]; then
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-sssd"
	    if test "`getconf LONG_BIT`" = "64"; then
		# SSSD backend needs to know where to find the sssd lib
		configure_opts="${configure_opts}${configure_opts+$tab}--with-sssd-lib=/usr/lib64"
	    fi
	fi
	if [ X"$with_sudo_ldap_conf" = X"true" ]; then
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-ldap-conf-file=/etc/sudo-ldap.conf"
	fi
	# Note, must indent with tabs, not spaces due to IFS trickery
	configure_opts="--prefix=/usr
		--with-logging=syslog
		--with-logfac=authpriv
		--with-pam
		--enable-zlib=system
		--with-editor=/bin/vi
		--with-env-editor
		--with-ignore-dot
		--with-tty-tickets
		--with-ldap
		--with-passprompt=[sudo] password for %p: 
		--with-sendmail=/usr/sbin/sendmail
		$configure_opts"
	;;
    sles*)
	if [ $osrelease -ge 10 ]; then
	    if [ $osrelease -ge 11 ]; then
		# SLES 11 and higher have SELinux
		configure_opts="${configure_opts}${configure_opts+$tab}--with-selinux"
	    fi
	    if [ $osrelease -ge 12 ]; then
		# Encrypted remote I/O log support.
		with_openssl=true
		# Python plugins
		with_python=true
	    fi
	fi
	# SuSE doesn't have /usr/libexec
	libexec=lib
	case "$osversion" in
	    *64*)	gcc -v 2>&1 | grep "with-cpu=[^ ]*32" >/dev/null || libexec=lib64
			;;
	esac
	# Note, must indent with tabs, not spaces due to IFS trickery
	# XXX - SuSE uses secure path but only for env_reset
	configure_opts="--prefix=/usr
		--libexecdir=/usr/$libexec
		--with-logging=syslog
		--with-logfac=auth
		--with-all-insults
		--with-ignore-dot
		--with-tty-tickets
		--enable-shell-sets-home
		--with-sudoers-mode=0440
		--with-pam
		--enable-zlib=system
		--with-ldap
		--with-env-editor
		--with-passprompt=%p\'s password: 
		--with-sendmail=/usr/sbin/sendmail
		$configure_opts"

	make_opts="${make_opts}${make_opts+ }"'docdir=$(datarootdir)/doc/packages/$(PACKAGE_TARNAME)'
	;;
    deb*|ubu*)
	# Encrypted remote I/O log support.
	with_openssl=true
	# Python plugins
	with_python=true
	# Man pages should be compressed in .deb files
	export MANCOMPRESS='gzip -9'
	export MANCOMPRESSEXT='.gz'
	# If Ubuntu, add --enable-admin-flag
	case "$osversion" in
	    ubu*)
		configure_opts="${configure_opts}${configure_opts+$tab}--enable-admin-flag${tab}--without-lecture"
		;;
	esac
	# Newer Debian uses arch-specific lib dirs
	MULTIARCH=`dpkg-architecture -qDEB_HOST_MULTIARCH 2>/dev/null`
	# Note, must indent with tabs, not spaces due to IFS trickery
	if test "$flavor" = "ldap"; then
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-ldap
		--with-ldap-conf-file=/etc/sudo-ldap.conf"
	else
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-sssd"
	    if test -n "$MULTIARCH"; then
		# SSSD backend needs to know where to find the sssd lib
		configure_opts="${configure_opts}${configure_opts+$tab}--with-sssd-lib=/usr/lib/$MULTIARCH"
	    fi
	fi
	configure_opts="--prefix=/usr
		--with-all-insults
		--with-pam
		--enable-zlib=system
		--with-fqdn
		--with-logging=syslog
		--with-logfac=authpriv
		--with-env-editor
		--with-editor=/usr/bin/editor
		--with-timeout=15
		--with-password-timeout=0
		--with-passprompt=[sudo] password for %p: 
		--disable-root-mailer
		--with-sendmail=/usr/sbin/sendmail
		--mandir=/usr/share/man
		--libexecdir=/usr/lib
		--with-selinux
		--with-linux-audit
		$configure_opts"
	# Use correct libaudit dependency
	for f in /lib/${MULTIARCH}${MULTIARCH:+/}libaudit.so.[0-9]* /lib/libaudit.so.[0-9]*; do
	    if test -f "$f"; then
		linux_audit=`dpkg-query -S "$f" 2>/dev/null | sed -n 's/:.*//p'`
		test -n "$linux_audit" && break;
	    fi
	done
	if [ -z "$linux_audit" ]; then
	    echo "unable to determine package for libaudit" 1>&2
	    exit 1
	fi
	PPVARS="${PPVARS}${PPVARS+$space}linux_audit=$linux_audit"
	# Use correct libssl dependency
	libssl_dep=`dpkg-query -S /usr/lib/${MULTIARCH}${MULTIARCH:+/}libssl.so.1.[0-9]* /lib/${MULTIARCH}${MULTIARCH:+/}libssl.so.1.[0-9]* 2>/dev/null | sort -rn | awk -F: '{ print $1; exit }'`
	if [ -z "$libssl_dep" ]; then
	    echo "unable to determine package for libssl" 1>&2
	    exit 1
	fi
	PPVARS="${PPVARS}${PPVARS+$space}libssl_dep=$libssl_dep"
	;;
    macos*)
	# TODO: openssl (homebrew?)
	case "$osversion" in
	    macos10[0-6]-i386|macos10[0-6]-x86_64)
		# Build intel universal binaries for 10.6 and below
		ARCH_FLAGS="-arch i386 -arch x86_64"
		;;
	    macos11*)
		# Build arm64/x86_64 universal binaries for macOS 11
		ARCH_FLAGS="-arch arm64 -arch x86_64"
		;;
	esac
	if test "${osversion}" != "`$scriptdir/pp --probe`"; then
	    sdkvers=`echo "${osversion}" | sed 's/^macos\([0-9][0-9]\)\([0-9]*\)-.*$/\1.\2/'`
	    # SDKs may be under Xcode.app or CommandLineTools (for non-Xcode)
	    if [ -d "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs" ]; then
		SDK_DIR="/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs"
	    elif [ -d "/Library/Developer/CommandLineTools/SDKs" ]; then
		SDK_DIR="/Library/Developer/CommandLineTools/SDKs"
	    else
		echo "unable to find macOS SDKs directory" 1>&2
		exit 1
	    fi
	    SDK_DIR="${SDK_DIR}/MacOSX${sdkvers}.sdk"
	    if test -d "${SDK_DIR}"; then
		SDK_FLAGS="-isysroot ${SDK_DIR} -mmacosx-version-min=${sdkvers}"
	    else
		echo "unable to find SDKs directory for macOS $sdkvers" 1>&2
		exit 1
	    fi
	fi
	export CFLAGS="-O2 -g $ARCH_FLAGS $SDK_FLAGS"
	export LDFLAGS="$ARCH_FLAGS $SDK_FLAGS"
	# Note, must indent with tabs, not spaces due to IFS trickery
	configure_opts="--with-pam
		--with-bsm-audit
		--without-tty-tickets
		--enable-zlib=system
		--with-ldap
		--with-insults=disabled
		--with-logging=syslog
		--with-logfac=authpriv
		--with-editor=/usr/bin/vim
		--with-env-editor
		$configure_opts"
	;;
    aix*)
	# TODO: openssl (AIX freeware?)
	# Use -gxcoff with gcc instead of -g for dbx-style debugging symbols.
	if test -z "$CC" && gcc -v >/dev/null 2>&1; then
	    CFLAGS="-O2 -gxcoff"; export CFLAGS
	fi
	# Note, must indent with tabs, not spaces due to IFS trickery
	# Note: we include our own zlib instead of relying on the
	#       AIX freeware version being installed.
	configure_opts="
		--prefix=/opt/freeware
		--mandir=/opt/freeware/man
		--with-insults=disabled
		--with-logging=syslog
		--with-logfac=auth
		--with-editor=/usr/bin/vi
		--with-env-editor
		--enable-zlib=builtin
		--disable-nls
		--with-sendmail=/usr/sbin/sendmail
		$configure_opts"
	PPVARS="${PPVARS}${PPVARS+$space}aix_freeware=true"
	;;
    *)
	# For Solaris, add project support and use let configure choose zlib.
	# For all others, use the builtin zlib and disable NLS support.
	case "$osversion" in
	    sol*)
		configure_opts="${configure_opts}${configure_opts+$tab}--with-project"

		if [ $osrelease -ge 11 ]; then
		    # Build 64-bit binaries on Solaris 11 and above.
		    CFLAGS="-O2 -g -m64"; export CFLAGS
		    LDFLAGS="-m64"; export LDFLAGS
		    # Solaris audit is not supported by Illumos
		    if test X"`uname -o 2>/dev/null`" = X"illumos"; then
			configure_opts="${configure_opts}${configure_opts+$tab}--with-bsm-audit"
		    else
			configure_opts="${configure_opts}${configure_opts+$tab}--with-solaris-audit"
		    fi
		    # Encrypted remote I/O log support.
		    with_openssl=true
		    # Python plugins
		    with_python=true

		    # We prefer the system version of python3 to the
		    # csw one (which may be 32-bit)
		    if [ -z "$PYTHON" ]; then
			if [ -x /usr/bin/python3 ]; then
			    PYTHON="/usr/bin/python3"; export PYTHON
			else
			    # Sometimes the /usr/bin/python3 is missing
			    for f in /usr/bin/python3.9 /usr/bin/python3.8 /usr/bin/python3.7 /usr/bin/python3.6 /usr/bin/python3.5 /usr/bin/python3.4 /usr/bin/python3.3 /usr/bin/python3.2 /usr/bin/python3.1 /usr/bin/python3.0; do
				if [ -x $f ]; then
				    PYTHON="$f"; export PYTHON
				    break
				fi
			    done
			fi
		    fi
		fi
		;;
	    hpux*-ia64)
		# Build 64-bit binaries on HP-UX ia64
		if test -z "$CC" && gcc -v >/dev/null 2>&1; then
		    CC="gcc -mlp64"; export CC
		fi
		# TODO: openssl
		configure_opts="${configure_opts}${configure_opts+$tab}--enable-zlib=builtin${tab}--disable-nls"
		;;
	    *)
		# TODO: openssl
		configure_opts="${configure_opts}${configure_opts+$tab}--enable-zlib=builtin${tab}--disable-nls"
		;;
	esac
	if test "$flavor" = "ldap"; then
	    configure_opts="${configure_opts}${configure_opts+$tab}--with-ldap"
	fi
	# Note, must indent with tabs, not spaces due to IFS trickery
	configure_opts="
		--with-insults=disabled
		--with-logging=syslog
		--with-logfac=auth
		--with-editor=/usr/bin/vim:/usr/bin/vi:/bin/vi
		--with-env-editor
		$configure_opts"
	;;
esac

# Don't enable OpenSSL if user disabled it.
case "$configure_opts" in
    *--disable-openssl*) with_openssl=false;;
esac
if [ X"$with_openssl" = X"true" ]; then
    configure_opts="${configure_opts}${configure_opts+$tab}--enable-openssl"
fi
if [ X"$with_python" = X"true" ]; then
    configure_opts="${configure_opts}${configure_opts+$tab}--enable-python"
fi

# The postinstall script will create tmpfiles.d/sudo.conf for us
configure_opts="${configure_opts}${configure_opts+$tab}--disable-tmpfiles.d"

# Remove spaces from IFS when setting $@ so that passprompt may include them
OIFS="$IFS"
IFS="	$nl"
set -- $configure_opts $extra_opts
IFS="$OIFS"
if [ -r Makefile ]; then
    ${MAKE} $make_opts distclean
fi
${configure} "$@" || exit 1
${MAKE} $make_opts && ${MAKE} $make_opts PPFLAGS="$PPFLAGS" PPVARS="$PPVARS" package
test $debug -eq 0 && rm -rf destdir