stl.zip_Talk Talk_echo_tcp协议的使用

#include <stdio.h> #include <string.h> #include <errno.h> #include <netinet/in.h> #define PORT 7000 #define HOST_ADDR "192.168.11.87 " main () { struct sockaddr_in server; int s, ns; int pktlen, buflen; char buf1[256], buf2[256]; s=socket(AF_INET, SOCK_STREAM, 0); server.sin_family = AF_INET; server.sin_port = htons(PORT); server.sin_addr.s_addr = inet_addr (HOST_ADDR); if (connect(s, (struct sockaddr *)&server, sizeof(server)) < 0) { perror("connect()"); return; } for (;;) { printf ("Enter a line: "); gets (buf1); buflen = strlen (buf1); if (buflen == 0) break; send(s, buf1, buflen + 1, 0); recv(s, buf2, sizeof (buf2), 0); printf("Received line: %s\n", buf2); } close(s); }