Date: Wed, 15 Jan 1997 08:30:01 -0800 (PST) From: "John S. Dyson" <toor@dyson.iquest.net> To: freebsd-bugs Subject: Re: bin/2502: Unable to sscanf first integer value. Message-ID: <199701151630.IAA09731@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR bin/2502; it has been noted by GNATS.
From: "John S. Dyson" <toor@dyson.iquest.net>
To: scrutchfield@ifusion.com
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: bin/2502: Unable to sscanf first integer value.
Date: Wed, 15 Jan 1997 11:21:26 -0500 (EST)
> 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;
> 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:
>
The problem that you are seeing is due to passing a pointer to
a "short" instead of a pointer to an "int." If you change the
declarations of (x,y) to be "unsigned int", then things will work
well.
John
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199701151630.IAA09731>