Address integer overflows reported by a code analyser #58

	---
	name: Synopsys

	on:
	push:
	branches: [coverity_scan]

	jobs:
	coverity-scan:
	name: Coverity Scan
	runs-on: ubuntu-latest

	steps:
	- name: Checkout Code
	uses: actions/checkout@v4

	- name: Download the Coverity Scan Build Tool
	run: \|
	wget -q https://scan.coverity.com/download/cxx/linux64 --post-data "token=$TOKEN&project=adrienverge%2Fopenfortivpn" -O cov-analysis-linux64.tar.gz
	mkdir cov-analysis-linux64
	tar xzf cov-analysis-linux64.tar.gz --strip 1 -C cov-analysis-linux64
	env:
	TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}

	- name: Build
	run: \|
	./autogen.sh
	./configure --prefix=/usr --sysconfdir=/etc
	export PATH=`pwd`/cov-analysis-linux64/bin:$PATH
	cov-build --dir cov-int make

	- name: Upload the Project Build
	run: \|
	tar caf openfortivpn.xz cov-int
	curl \
	--form token=$TOKEN \
	--form [email protected] \
	--form [email protected] \
	--form version=coverity_scan \
	--form description="Client for PPP+TLS VPN tunnel services" \
	https://scan.coverity.com/builds?project=adrienverge%2Fopenfortivpn
	env:
	TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}

Provide feedback