check_ssl_check

Requirements

OpenSSL
curl
date
file
bc

Optional dependencies

check_ssl_cert requires expect or timeout to enable timeouts. If expect or timeout are not present on your system timeouts will be disabled.
dig for DANE checks
nmap for the disallowed protocols and cyphers checks
expand for --info
tar and bzip2 to build release packages
ip or ifconfig to be able to use the -4 and -6 options
nectcat for --ignore-connection-state

Development

Following tools are required for development:

shUnit2 for the tests
shfmt to format the source files
ShellCheck for the code quality checks
codespell for the spell checks

Installation

Simply copy the plugin to your Nagios/Icinga plugin directory
Use make install by defining the DESTDIR and MANDIR variables with the installation targets. E.g, make DESTDIR=/nagios/plugins/dir MANDIR=/nagios/plugins/man/dir install
To install the bash completion script run sudo make install_bash_completion (it will install the completion script in the directory defined by pkg-config --variable=completionsdir bash-completion