Date: Mon, 11 Feb 2013 18:27:57 +0700 From: Erich Dollansky <erichsfreebsdlist@alogt.com> To: Peter Pentchev <roam@ringlet.net> Cc: freebsd-doc@freebsd.org Subject: Re: missing information in man 3 system Message-ID: <20130211182757.475efca2@X220.ovitrap.com> In-Reply-To: <20130211094557.GB5801@straylight.m.ringlet.net> References: <20130211120438.730ce5d3@X220.ovitrap.com> <20130211094557.GB5801@straylight.m.ringlet.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, On Mon, 11 Feb 2013 11:45:57 +0200 Peter Pentchev <roam@ringlet.net> wrote: > On Mon, Feb 11, 2013 at 12:04:38PM +0700, Erich Dollansky wrote: > > > > Or did I simply miss something? > > Yes, this is indeed the intended behavior of system(3) - it does say ok. This is good. Ah, this is from the description section. Which I did not read. > > if (WIFEXITED(code)) { > printf("The program exited with code %d\n", > WEXITSTATUS(code)); So, this is what I need. > Yes, it may seem a bit convoluted at first glance, but it is indeed > necessary for the purpose of providing all the information in a single > return value. Don't worry, this is something that everyone stumbles > into when making their first steps in system programming :) (pun > unintended ;) This comes then from the good-old-16-bit-days of Unix. I was more confused by the fact that my memory was right but I could not find the description under RETURN VALUES. That > > Hope that helps! Yes, of course. Thanks. Erich
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20130211182757.475efca2>