waitfor - command line tool for waiting until a host is reachable

For example:

• waitfor [host] [port] (waits until host is reachable at port)
• waitfor -t30 [host] [port] (waits until host is reachable at port, stops after 30 seconds if still not reachable)
• waitfor [host] (pings until host is reachable)
• waitfor -t30 [host] (pings until host is reachable, stops after 30 seconds if still not reachable)

Exit codes:

• 0 = host is reachable
• 1 = host is not reachable
• 2 = waitfor received SIGTERM/SIGINT
• 3 = other error

Please take a look in the Makefile for compilation instructions.