check_valid_ip

Checks if a string is a valid IP or not

Usage

Test with an IPv4 IP

./check_valid_ip 127.0.0.1
OK - "127.0.0.1" is a valid IP address - Family: "INET"

The exit code is 0

Test with an IPv6 IP

./check_valid_ip ::1
OK - "::1" is a valid IP address - Family: "INET6"

The exit code is 0

Test with something else!

./check_valid_ip nopenopenope
FAIL - "nopenopenope" is not a valid IP address

The exit code is 1

./check_valid_ip 10.0.0.256
FAIL - "10.0.0.256" is not a valid IP address

The exit code is 1

Build

• Install Crystal 0.27
• Checkout this repo
• Build with: crystal build --static --release check_valid_ip.cr