Re: Changing argv[0] under Linux.

[Richard B. Johnson]

On Tue, 14 Jan 2003, DervishD wrote:

>     Hi Richard :)
> 
> > >     Any header where I can see the length for argv[0] or is this some
> > > kind of unoficial standard? Just doing strcpy seems dangerous to me
> > > (you can read 'paranoid'...).
> > They need to have space for _POSIX_PATH_MAX (512 bytes), to
> > claim POSIX compatibility so any POSIX system will have at
> > least 512 bytes available because the pathname of the executable
> > normally goes there.
> 
>     Enough for me, then. Thanks a lot :)) Just one more thing: in my
> Single Unix Spec v3 says that the minimum value of _POSIX_PATH_MAX is
> 256, not 512, and the libc manual says just the same :??
> 
>     Anyway, 256 bytes is a fair large amount ;))))
> 
>     Thanks again, Richard.
> 
>     Raśl
> 
Well I just grepped through usr/include/bits/posix1_lim.h and it
shows 255 (with this 'C' library) so you are probably right.

In any event, a "whole line of text" isn't going to overrun it. 

Cheers,
Dick Johnson
Penguin : Linux version 2.4.18 on an i686 machine (797.90 BogoMips).
Why is the government concerned about the lunatic fringe? Think about it.