Our TCP server code begins by including the needed headers, starting main(), and initializing Winsock. Refer to Chapter 2, Getting to Grips with Socket APIs, if this doesn't seem familiar:
/*tcp_serve_toupper.c*/#include "chap03.h"#include <ctype.h>int main() {#if defined(_WIN32) WSADATA d; if (WSAStartup(MAKEWORD(2, 2), &d)) { fprintf(stderr, "Failed to initialize.\n"); return 1; }#endif
We then get our local address, create our socket, and bind(). This is all done exactly as explained in Chapter 2, Getting to Grips with Socket APIs:
/*tcp_serve_toupper.c */ printf("Configuring local address...\n"); struct addrinfo hints; memset(&hints, 0, sizeof(hints)); hints.ai_family = AF_INET; hints.ai_socktype = SOCK_STREAM; hints.ai_flags ...
