Fix various issues detected by static analysis and invalid file mode in systemd service file #216

	name: CI
	on: [push, pull_request]

	jobs:
	ubuntu:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	name: [ubuntu-clang, ubuntu-gcc]
	include:
	- name: ubuntu-clang
	compiler: clang
	cflags: -Wall -Wextra -Werror -Wno-cast-align -Wno-unused-parameter -Wno-missing-braces
	- name: ubuntu-gcc
	compiler: gcc
	cflags: -Wall -Wextra -Werror -Wno-unused-parameter -Wno-format-truncation -Wno-restrict
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y build-essential autopoint clang gcc docbook-{xsl,xml} libxml2-utils xml-core xsltproc lib{krb5,ini-config,keyutils,popt,selinux1,systemd,verto}-dev lib{nss,socket}-wrapper python3{,-colorama} valgrind krb5-{kdc,admin-server,kdc-ldap} ldap-utils slapd apparmor-utils
	- name: Silence AppArmor
	run: sudo aa-complain $(which slapd)
	- name: Setup
	run: \|
	autoreconf -fiv
	./configure
	- name: Build and test
	env:
	CFLAGS: ${{ matrix.cflags }}
	CC: ${{ matrix.compiler }}
	run: make -s distcheck DISTCHECK_CONFIGURE_FLAGS="CFLAGS=\"$CFLAGS\" CC=\"$CC\""

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