Programmatically retrieving the absolute path of an OS X command-line app

Question

On Linux, an application can easily get its absolute path by querying /proc/self/exe. On FreeBSD, it\'s more involved, since you have to build up a sysctl call

Answer 1

There is no guaranteed way I think. If argv[0] is a symlink then you could use readlink(). If command is executed through the $PATH then one could try some of: search(getenv("PATH")), getenv("_"), dladdr()