Re: major problem with trivial piece of code

[Thomas Dickey]

On Fri, 30 Jan 2004, Heusden van, FJJ (Folkert) wrote:

> Hi,
>
> I have big problems with a trivial piece of code.
> A fragment of the code follows. fd is a socket.
>
> #include <curses.h>
> ...
>       char buffer[4096 + 1];
>       int rc = read(fd, buffer, 4096);
>
>       if (rc > 0)
>       {
>               buffer[rc] = 0x00;
>
>               wprintw(stdscr, "%s", buffer);
                refresh();
>
>               write(3, buffer, rc);
>       }
>
> One would now expect that everything that gets in through that socket would 
> be displayed on the
> terminalscreen. That is not the case! The only thing that happens is that the 
> cursor moves when
> an LF comes in.
> When I run my program with "./a.out 3> log", the output IS written to that 
> logfile 'log'! So
> data does come in.
> Somewhere else in the code I have "wprintw(stdscr, "%c", buffer[0])": that 
> one works as expected!
>
> Anyone any idea what might go wrong?
> (the total code is available at: 
> http://www.vanheusden.com/Linux/recvnet-0.0.1.tgz )
>
>
> Folkert
>
>
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-- 
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net