#!/bin/bash

DEPS=(glibc libtirpc audit libxcrypt)

PKG_VER=1.5.2
SOURCE=https://github.com/linux-pam/linux-pam/releases/download/v$PKG_VER/Linux-PAM-$PKG_VER.tar.xz
DESC="PAM (Pluggable Authentication Modules) library"

prepare () {
    # prevent install of an uneeded systemd file
    sed -e /service_DATA/d \
        -i modules/pam_namespace/Makefile.am &&
    autoreconf

}

build () {
    ./configure --prefix=/usr                        \
            --sbindir=/usr/sbin                  \
            --sysconfdir=/etc                    \
            --libdir=/usr/lib                    \
            --enable-securedir=/usr/lib/security \
            --docdir=/usr/share/doc/Linux-PAM-$PKG_VER &&
    make
}

package () {
    make DESTDIR=$PKG_DEST install
    install -v -m755 -d $PKG_DEST/etc/pam.d
}

postinstall () {

    install -vdm755 /etc/pam.d 
    cat > /etc/pam.d/system-account << "EOF" 
# Begin /etc/pam.d/system-account

account   required    pam_unix.so

# End /etc/pam.d/system-account
EOF

    cat > /etc/pam.d/system-auth << "EOF" 
# Begin /etc/pam.d/system-auth

auth      required    pam_unix.so

# End /etc/pam.d/system-auth
EOF

    cat > /etc/pam.d/system-session << "EOF"
# Begin /etc/pam.d/system-session

session   required    pam_unix.so

# End /etc/pam.d/system-session
EOF

    cat > /etc/pam.d/system-password << "EOF"
# Begin /etc/pam.d/system-password

# use sha512 hash for encryption, use shadow, and try to use any previously
# defined authentication token (chosen password) set by any prior module
password  required    pam_unix.so       sha512 shadow try_first_pass

# End /etc/pam.d/system-password
EOF

}