Home/ Questions/Q 444385
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-12T21:15:55+00:00

Does the POSIX standard or another C standard provide a way to recover a

  • 0

Does the POSIX standard or another C standard provide a way to recover a meaningful message from a signal number, in the same way that strerror() makes it possible to recover a message from errno? The Gnu C library has strsignal(), but if possible, I would like something portable to BSD and other Unix variants.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Yes, interestingly, there is a standard way to get a string message from a signal in POSIX. It is, quite coincidentally, strsignal(). From POSIX.1-2008:

    The strsignal() function shall map the signal number in signum to an implementation-defined string and shall return a pointer to it. It shall use the same set of messages as the psignal() function.

    An environment that does not provide you this function is not POSIX-compliant. Although relatively new (Issue 7 came out in 2008), I have a man page for strsignal() on Mac OS X, so that’s a good sign.

    • 0