1 #include <stdio.h>
 2 #include <stdlib.h>
 3 #include <string.h>
 4 #include <time.h>
 5 #include <sys/types.h>          /* See NOTES */
 6 #include <sys/socket.h>
 7 #include <netinet/in.h>
 8 #include <netinet/ip.h>
 9 #include <arpa/inet.h>
10 #include <unistd.h>
11 #include <sys/wait.h>
12 #include <pthread.h>
13 
14 int Server_init(void);
15 typedef struct sockaddr SA;
16 
17 void *callback(void* confd);
18 int main(int argc,const char *argv[])
19 {
20     int sockfd;
21     //初始化套接字
22     sockfd=Server_init();
23 
24     return 0;
25 }
26 
27 int Server_init(void)
28 {
29     //创建套接字
30     int sockfd=socket(AF_INET,SOCK_STREAM,0);
31     if(sockfd==-1)
32     {
33         perror("sockfd");
34         return -1;
35     }
36     
37     //绑定套接字
38     struct sockaddr_in seraddr;
39     seraddr.sin_family=AF_INET;
40     seraddr.sin_port=htons(8080);
41     seraddr.sin_addr.s_addr=htonl(INADDR_ANY);
42     int ret=bind(sockfd,(SA*)&seraddr,sizeof(seraddr));
43     if(ret==-1)
44     {
45         perror("bind");
46         return -1;
47     }
48     
49     //监听
50     ret=listen(sockfd,0);
51     if(ret==-1)
52     {
53         perror("listen");
54         return -1;
55     }
56     printf("listen--successful\n");
57     //接通
58     struct sockaddr_in cliaddr;
59     socklen_t len=sizeof(cliaddr); 
60     while(1)
61     {
62         int confd=accept(sockfd,(SA*)&cliaddr,&len);
63         if(confd==-1)
64         {
65             perror("accept");
66             return -1;
67         }
68         printf("accept--successful %s  %d\n",inet_ntoa(cliaddr.sin_addr),ntohs(cliaddr.sin_port));
69         pthread_t thread_id;
70         int ret=pthread_create(&thread_id,NULL,callback,(void*)confd);　　　　//把连接套接字直接发过去
71         if(ret==-1)
72         {
73             perror("pthread_create");
74             return -1;
75         }
76         pthread_detach(thread_id);
77     }
78     close(sockfd);
79 }
80 
81 void *callback(void* confd)　　　　
82 {
83     int id=(int)confd;　　//注意:关闭套接字时，需要一个局部变量
84     while(1)
85     {
86         char buf[64];
87         bzero(buf,sizeof(buf));
88         strcpy(buf,"hello ,this is server");
89         //发送数据
90         send(id,buf,sizeof(buf),0);
91     }
92     close(id);
93     pthread_exit(NULL);
94 }