Re: r1073 - trunk/glibc-2.3-head/sysdeps/kfreebsd

[Robert Millan <rmh@aybabtu.com>]

On Sat, Jan 21, 2006 at 12:11:52AM +0100, Aurelien Jarno wrote:
> 
> This is the comment in the FreeBSD kernel, file sys/kern/kern_xxx.c
> 
> /*
>  * This is the FreeBSD-1.1 compatable uname(2) interface.  These
>  * days it is done in libc as a wrapper around a bunch of sysctl's.
>  * This must maintain the old 1.1 binary ABI.
>  */
> 
> Then if you look at the code corresponding to the syscall, you will see 
> that the syscall correspond to a call to the corresponding sysctl, but
> truncated:
> 	
>         ...
> 
>         name[0] = CTL_KERN;
>         name[1] = KERN_OSTYPE;
>         len = sizeof (uap->name->sysname);
>         mtx_lock(&Giant);
>         error = userland_sysctl(td, name, 2, uap->name->sysname, &len,
>                 1, 0, 0, 0);
>         if (error)
>                 goto done2;
>         subyte( uap->name->sysname + sizeof(uap->name->sysname) - 1, 0);
> 
>         ...
> 
> 
> So, in short the current implementation in our glibc is the correct one.

Weird.   How about disabling SYS_uname macro, then?

-- 
Robert Millan