"TCP/IP high-efficiency programming: 44 Tips for improving network programs" source code compilation on Linux

In order to complete the compilation first, the following steps are required:

1. Go to the Linux subdirectory and perform make. (This step is patching.) ）

2, return to the previous level directory, open file simplec.c, add header file #include <stdio.h>.

3. Remove static from the static void set_address in the following file:

Connectto.c

Tcpsink.c

3. Perform make at the root directory.

Carries mistake one:

When doing Shutdownc/tcpecho experiments, the client SHUTDOWNC always outputs an error:

Shutdownc:fputs failed

It's completely different from what the book says about "server disconnected."

The relevant code is at line 50th SHUTDOWN.C:

if (Fputs (Lin, stdout))
Error (1, errno, "Fputs failed");

Look at Fputs's Man Handbook, you know:

Fputs () return a non-negative number on success, or EOF on error

So change to:

            if (Fputs (lin, stdout) = = EOF                ) 1 " Fputs failed " );

Recompile, then do the experiment, the output is consistent with the book:

Shutdownc:server disconnected

"TCP/IP high-efficiency programming: 44 Tips for improving network programs" source code compilation on Linux