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major problem with trivial piece of code

From: Heusden van, FJJ (Folkert)
Subject: major problem with trivial piece of code
Date: Fri, 30 Jan 2004 10:56:16 +0100


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);

                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 )


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