Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!bloom-beacon!gatech!gt-cmmsr!auc!maw
From: maw@auc.UUCP (Michael A. Walker)
Newsgroups: comp.lang.c
Subject: Re: getpwnam
Message-ID: <32132@auc.UUCP>
Date: Sun, 16-Aug-87 14:08:41 EDT
Article-I.D.: auc.32132
Posted: Sun Aug 16 14:08:41 1987
Date-Received: Sun, 16-Aug-87 22:49:42 EDT
References: <8725@brl-adm.ARPA> <32131@auc.UUCP>
Organization: Atlanta University, Atlanta, GA
Lines: 50
Summary: errata from the author of this article

In article <32131@auc.UUCP>, maw@auc.UUCP (Michael A. Walker) writes:
> In article <8725@brl-adm.ARPA>, oxy!bagpiper@csvax.caltech.EDU (Michael Paul Hunter) writes:
> > 
> > In uudecode.c there is a function called getpwnam. (struct passwd getpwnam)
> > Since I am not using a true unix (primix 2.0 yuch) I need to know what this
> > function does so that I can try to rewrite it.  Could anybody please either
> > send me a functional speck of getpwnam, or, could somebody send me a piece
> > of code that does what unix getpwname does, but on a PR1ME 9955.
> 
> 	The function getpwnam() returns a pointer to the entry in the password
> file for a specified login name.  The following is an example of how it might
> be used in a program(probably only in UN*X enviornments:
> 
----cut out stuff---
>
> However, to mimic getpwnam(), one can very simply write a program that will 
> search the password file and retrieve the desired information.  Here's an
> example that retrieves all of the users login name:
			      	    ^^^^^ ^^^^^ ^^^^

This is not true.  The second program I wrote in the last message, returns 
the contents of the pw_comments part of the /etc/passwd file( field 5 ).  To 
return the all of the users login names, you would have to define FIELD to 
be 0 instead of 4.  Also, you can get other data from the password file by 
changing the FIELD definition to a number one less than the actual field you 
want.

Please forgive me of the error.

-----mike

P. S.  Both of my messages were written with the following structure of the 
	password file in mind(delimited by :'s):

struct passwd {
	char	*pw_name;
	char	*pw_passwd;
	int	pw_uid;
	int	pw_gid;
	char	*pw_age;
	char	*pw_comment;
	char	*pw_gecos;
	char	*pw_dir;
	char	*pw_shell;
};
-- 
<----------------------------------------------------------------------------->
<      Michael A. Walker      | Operator |      AUC Computational Center      > 
<   gatech!gt-cmmsr!auc!maw   | <<<<>>>> |  "There is strength in diversity." >
<----------------------------------------------------------------------------->