int status;
int sockfd;
int connFd;
struct sockaddr_in cliAddr;
int sendSta;
char *msg;
if (argc != 2) {
fprintf(stderr, "Usage: Not found Read File");
return 1;
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
status = getaddrinfo(NULL, SERVPORT, &hints, &res);
if (status != 0) {
fprintf(stderr, "getaddrinfo, fail!");
return 2;
}
sockfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
bind(sockfd, res->ai_addr, res->ai_addrlen);
listen(sockfd, 5);
printf("======== Please Wait Client =========\n");
while(1) { // loop forever!
char ipstr[INET_ADDRSTRLEN];
void *addr;
int len = sizeof(cliAddr);
connFd = accept(sockfd, (struct sockaddr *)&cliAddr, &len);
/* View Client IP */
struct sockaddr_in *ipv4 = (struct sockaddr_in *)&cliAddr;
addr = &(ipv4->sin_addr);
inet_ntop(AF_INET, addr, ipstr, sizeof(ipstr));
printf("client: %s\n", ipstr);
/* Copy Data */
msg = "Hello world!";
sendSta = send(connFd, msg, strlen(msg), 0);
close(connFd);
}
close(sockfd);
return 0;
}
摘自 xiaobin_HLJ80的专栏