This is a small test page."; /* HTML page */ static void serve(int fd) { char buf[1024]; ssize_t buflen; /* Read the data from the port, blocking if nothing yet there. We assume the request (the part we care about) is in one packet */ buflen = recv(fd, buf, 1024, 0); // PLOG("Packet received!"); /* Ignore all receive errors */ if (buflen > 0) { /* Is this an HTTP GET command? (only check the first 5 chars, since there are other formats for GET, and we're keeping it very simple)*/ if (buflen >= 5 && buf[0] == 'G' && buf[1] == 'E' && buf[2] == 'T' && buf[3] == ' ' && buf[4] == '/' ) { // PLOG("Will send response"); /* Send http header */ send(fd, http_html_hdr, sizeof(http_html_hdr), 0); /* Send our HTML page */ send(fd, http_index_html, sizeof(http_index_html), 0); } } } int main() { int s; PLOG("Create new socket ..."); if((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) { PERR("No socket available!"); return -1; } PLOG("Now, I will bind ..."); struct sockaddr_in in_addr; in_addr.sin_family = AF_INET; in_addr.sin_port = htons(80); in_addr.sin_addr.s_addr = INADDR_ANY; if(bind(s, (struct sockaddr*)&in_addr, sizeof(in_addr))) { PERR("bind failed!"); return -1; } PLOG("Now, I will listen ..."); if(listen(s, 5)) { PERR("listen failed!"); return -1; } PLOG("Start the server loop ..."); while(true) { struct sockaddr addr; socklen_t len = sizeof(addr); int client = accept(s, &addr, &len); if(client < 0) { PWRN("Invalid socket from accept!"); continue; } serve(client); close(client); } return 0; }