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Date: Sun, 20 Jan 2019 19:50:53 -0500
From: Rich Felker <>
Subject: Re: <shadow.h> function: fgetspent_r

On Sun, Jan 20, 2019 at 03:12:59PM -0600, A. Wilcox wrote:
> On 01/20/19 09:41, Markus Wichmann wrote:
> > Hi all,
> > 
> > so, I wrote a version of fgetspent_r() now. I based it on fgetspent().
> > For style, I adopted the Linux style -- might need to refactor that.
> > Returning EILSEQ on format error is a hack, but I found no better code.
> > As I said, glibc loops on error, but we do that for no other src/passwd
> > function, so we should either not start now or add that feature to every
> > other function.
> > 
> > One thing I noticed: If AccountService requires this interfaces, is it
> > possible that it doesn't support TCB shadow files?
> > 
> > Ciao,
> > Markus
> It doesn't support TCB shadow files.

How so? The whole point of this interface is that it reads from a
FILE* provided by the caller, not the system shadow store. The usage
case is writing utilities that access and modify the underlying files
(or possibly tempfile copies thereof).

> > +int fgetspent_r(FILE *f, struct spwd* sp, char *line, size_t size,
> struct spwd **spret)
> Tiny style nit: I think the * is meant to be kept with 'sp', not 'spwd',
> in the second argument.



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