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使用IPv6 Socket通信的client 和server 实例
- client侧
- /* sudochen@163.com
- *
- *
- */
- #include <stdio.h>
- #include <string.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <unistd.h>
- #include <sys/wait.h>
- #include <arpa/inet.h>
- #define LOCAL_IPV6_ADDR "2222:250:3001:1::1"
- #define IPV6_PORT 8888
- char msg[] = {"hello world\0"};
- int main(int argc, char **argv)
- {
- int fd_client, fd_server;
- int ret;
- int size;
- struct sockaddr_in6 server_addr,client_addr;
-
- fd_client = socket(AF_INET6,SOCK_DGRAM,0);
- if (fd_client < 0) {
- printf("socket create for ipv6 failed\n");
- return -1;
- }
- memset(&server_addr,0,sizeof(server_addr));
- server_addr.sin6_family = AF_INET6;
- server_addr.sin6_port = htons(IPV6_PORT);
- inet_pton(AF_INET6,LOCAL_IPV6_ADDR,server_addr.sin6_addr.__in6_u.__u6_addr8);
- ret = sendto(fd_client,msg,strlen(msg),0,
- (struct sockaddr*)(&server_addr),
- sizeof(server_addr));
- if (ret < 0) {
- printf("socket send for ipv6 failed\n");
- close(fd_client);
- return -1;
- }
- close(fd_client);
- }
- server侧
- #include <stdio.h>
- #include <string.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <unistd.h>
- #include <sys/wait.h>
- #include <arpa/inet.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <time.h>
- #include <linux/if_ether.h>
- #include <net/if.h>
- #include <netinet/ip.h>
- #include <netinet/tcp.h>
- #include <netinet/udp.h>
- #include <sys/ioctl.h>
- #include <arpa/inet.h>
- #include <netinet/in.h>
- #include <fcntl.h>
- #include <sys/stat.h>
- #include <netdb.h>
- #include <stdlib.h>
- #include <assert.h>
- #include <netpacket/packet.h>
- #define IPV6_PORT 8888
- char msg[] = {"hello world\0"};
- int main(int argc, char **argv)
- {
- int fd_client, fd_server;
- int ret;
- int size;
- struct ifreq ifr;
- struct sockaddr_in6 server_addr,client_addr;
- memset(msg,0,sizeof(msg)) ;
- int i = 0;
- fd_client = socket(AF_INET6,SOCK_DGRAM,0);
- if (fd_client < 0) {
- printf("socket create for ipv6 failed\n");
- return -1;
- }
- memset(&server_addr,0,sizeof(server_addr));
- server_addr.sin6_family = AF_INET6;
- server_addr.sin6_port = htons(IPV6_PORT);
- inet_pton(AF_INET6,"2222:250:3001:1::1",server_addr.sin6_addr.__in6_u.__u6_addr8);
- printf("IP :");
- for (i=0;i<16;i++){
- printf("%02x ",server_addr.sin6_addr.__in6_u.__u6_addr8[i]);
- }
- printf("\n");
- ret = bind(fd_client,(struct sockaddr*)(&server_addr),sizeof(struct sockaddr_in6));
- if (ret < 0) {
- perror("bind error\n");
- }
- size = sizeof(client_addr);
- ret = recvfrom(fd_client,msg,sizeof(msg),0,(struct sockaddr*)(&client_addr),&size);
- if (ret < 0) {
- printf("resvfrom error\n");
- }
- printf("%s\n",msg);
- close(fd_client);
- return 0;
- ret =
- close(fd_client);
-
- }
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