Usage: haveinet [-q | -s | -a ADDR | -v | -h]

Options:
  -a      Test against this address (default: 8.8.8.8)
  -q      Suppress errors, stdout only
  -s      Suppress errors and stdout, return status code only
  -v      Show version info
  -h      Show this help

Tests the internet connection and exits successfully if a connection is present. Otherwise, exits with a non-zero status.

Examples:

$ haveinet -q
Connected to internet

$ haveinet -q
Not connected to internet

$ haveinet -s -a google.com && echo connected
connected

./configure
make
make install

The configure script can be provided with --prefix=path and TESTADDR=hostname. Run ./configure -h for details.

make uninstall

• Works on Mac OS X. (depends on ping, which doesn't have standard options)

• 0.0.1 - initial release
• 0.0.2 - added -s option for silent output, made -q suppress stderr. Reduced try count to 3.
• 0.0.3 - minor Makefile changes
• 0.1.0 - Makefile installs to libexec instead of to lib; script version was out of sync. Created homebrew formula (tap: chaimleib/formulae).
• 0.2.0: add configure.ac
• 0.2.1: make the all target add execute permissions
• 0.2.2: add the all target to install
• 0.3.0: add ability to ./configure TESTADDR=hostname; Makefile detects changes to more files, README update, usage message no longer displays path to executable in example
• 0.4.0: compatibility with the iputils version of ping, which takes ms for -W arg instead of s