Path: utzoo!attcan!uunet!auspex!guy
From: guy@auspex.UUCP (Guy Harris)
Newsgroups: comp.unix.questions
Subject: Re: ENVIRONMENT settings
Message-ID: <666@auspex.UUCP>
Date: 10 Dec 88 04:40:19 GMT
References: <10551@swan.ulowell.edu> <76@notrees.ACA.MCC.COM>
Reply-To: guy@auspex.UUCP (Guy Harris)
Organization: Auspex Systems, Santa Clara
Lines: 23

>here's a portion of the code pulled out from a source file
>
>main (argc, argv, envp)
...
>     char **envp;
>{
>	/* do something */
> 	for (; *envp; envp++) {
>	printf("%s\n", *envp);
	...

You pulled it from the wrong source file; this may be something like
the "printenv" or "env" commands.  If you want to dump the entire
environment, you have to do something like that; however, if you just
want to look at some *particular* environment variable, it's easier (and
quite possibly more portable) to just do something like

	char *p;
	extern char *getenv();

	p = getenv("LOGNAME");

which will get the value of the environment variable "LOGNAME".