Date: Tue, 29 Jun 1999 12:18:07 +1000 From: Patryk Zadarnowski <patrykz@mycenae.ilion.eu.org> To: freebsd-hackers@FreeBSD.ORG Subject: Re: environment strings Message-ID: <199906290218.MAA29451@mycenae.ilion.eu.org> In-Reply-To: Your message of "Tue, 29 Jun 1999 09:56:59 %2B0930." <19990629095659.B86806@freebie.lemis.com>
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> > I wanted t know where the environment strings i bsd were stored after a > > program execs another one. extern char **environ; > At the top of memory. You can access them by the standard (but > undocumented) method: > > int main (int argc, char *argv [], char *envp []) > > envp is a pointer to the environment strings. This is true for every > version of UNIX I know. This is of course correct except for the `undocumented' claim. The `envp' has been documented as the third argument to main() since the Pharaons (well, not quite ;). Apparently AT&T UNIX even has a (documented) five-parameter main(). Besides, the `envp' argument is a recommended extension in ISO/ANSI C, so you can hardly say that it's undocumented. l8r, patryk. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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