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Date: Wed, 15 Jan 1997 12:10:45 -0800 (PST)
From: John-Mark Gurney <jmg@nike.efn.org>
Reply-To: John-Mark Gurney <gurney_j@resnet.uoregon.edu>
To: scrutchfield@ifusion.com
cc: freebsd-gnats-submit@freebsd.org,
        GNATS Management <gnats@freefall.freebsd.org>,
        freebsd-bugs@freefall.freebsd.org
Subject: Re: bin/2502: Unable to sscanf first integer value.
In-Reply-To: <199701151538.HAA07065@freefall.freebsd.org>
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On Wed, 15 Jan 1997 scrutchfield@ifusion.com wrote:

> >Synopsis:       Unable to sscanf first integer value.

[...]

> >Description:
> I am unable to sscanf correctly 2 integers from a string.  A Sample
> program that recreates the problem is shown below.  This is a problem
> in both libc and libc_r.
> 
> #include <stdio.h>
> #include <string.h>
> #include <stdlib.h>
> 
> main()
> {
> 	char *tmp = "999 12346";
> 	char *ptr;
> 	unsigned short x;
> 	unsigned short y;
> 	unsigned short z;

you need these to be int's, not short... if you want a short use %hd
instead..

> 	unsigned int a;
> 	int result;
> 
> 	result = sscanf ( tmp, "%d %d", &x, &y );
> 	z = strtol ( tmp, &ptr, 0 );
> 	a = atoi ( tmp );
> 	(void)fprintf ( stderr, "x(%d)y(%d)z(%d)a(%d)\n", x, y, z, a );
> 	exit ( 0 );
> }
> 
> >How-To-Repeat:
> Run the above program.
> >Fix:

use scanf like it was designed to...  if you need help man 3 scanf should
contain the missing info...  hope this helps... ttyl..

John-Mark

gurney_j@efn.org
http://resnet.uoregon.edu/~gurney_j/
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