/* * Example of server using SPP protocol. */ #include "xns.h" main(argc, argv) int argc; char *argv[]; { int sockfd, newsockfd, clilen; struct sockaddr_ns cli_addr, serv_addr; pname = argv[0]; /* * Open a SPP socket (an XNS stream socket). */ if ( (sockfd = socket(AF_NS, SOCK_STREAM, 0)) < 0) err_dump("server: can't open stream socket"); /* * Bind our local address so that the client can send to us. */ bzero((char *) &serv_addr, sizeof(serv_addr)); serv_addr.sns_family = AF_NS; serv_addr.sns_addr.x_port = htons(SERV_SPP_PORT); if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) err_dump("server: can't bind local address"); listen(sockfd, 5); for ( ; ; ) { /* * Wait for a connection from a client process, * then process it without fork()'ing. * This is an example of an iterative server. */ clilen = sizeof(cli_addr); newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen); if (newsockfd < 0) err_dump("server: accept error"); str_echo(newsockfd); /* returns when connection is closed */ close(newsockfd); } }