Example code:

• Tarred and gzipped archive
• Zip archive
• Individual Files
  • TCPEchoClient.c
  • DieWithError.c
  • TCPEchoServer.c
  • HandleTCPClient.c
  • UDPEchoClient.c
  • UDPEchoServer.c
  • SigAction.c
  • UDPEchoServer-SIGIO.c
  • UDPEchoClient-Timeout.c
  • TCPEchoServer-Fork.c (without SIGCHLD)
  • TCPEchoServer-Fork-SIGCHLD.c (with SIGCHLD)
  • TCPEchoServer.h
  • CreateTCPServerSocket.c
  • AcceptTCPConnection.c
  • TCPEchoServer-Thread.c
  • TCPEchoServer-ForkN.c
  • TCPEchoServer-Select.c
  • BroadcastSender.c
  • BroadcastReceiver.c
  • MulticastSender.c
  • MulticastReceiver.c
  • ResolveName.c
  • ResolveService.c
• Generally, compilation is as follows:
  • Linux: gcc -o TCPEchoClient TCPEchoClient.c DieWithError.c
  • Solaris: gcc -o TCPEchoClient TCPEchoClient.c DieWithError.c -lsocket -lnsl
  • Both: Add -lpthread to both Linux and Solaris for the threads example
• Note for older machines (e.g., SVR4 variants such as Solaris 2.5 and before): A few more include files may be necessary. If you get compile errors about u_short, try editing the include files as follows (order matters): #include <stdio.h> /* for printf() and fprintf() */ #include <sys/types.h> /* for Socket data types */ #include <sys/socket.h> /* for socket(), connect(), send(), and recv() */ #include <netinet/in.h> /* for IP Socket data types */ #include <arpa/inet.h> /* for sockaddr_in and inet_addr() */ #include <stdlib.h> /* for atoi() */ #include <string.h> /* for memset() */ #include <unistd.h> /* for close() */