参考:
man 2 socket
http://blog.csdn.net/ast_224/article/details/3962221
一个例子
- //c_unix.c
-
#include <stdio.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#define UNIX_DOMAIN "/tmp/UNIX.domain"
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int main(void)
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{
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int connect_fd;
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int ret;
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char snd_buf[1024];
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int i;
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static struct sockaddr_un srv_addr;
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//creat unix socket
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connect_fd=socket(PF_UNIX,SOCK_STREAM,0);
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if(connect_fd<0)
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{
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perror("cannot create communication socket");
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return 1;
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}
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srv_addr.sun_family=AF_UNIX;
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strcpy(srv_addr.sun_path,UNIX_DOMAIN);
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//connect server
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ret=connect(connect_fd,(struct sockaddr*)&srv_addr,sizeof(srv_addr));
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if(ret==-1)
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{
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perror("cannot connect to the server");
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close(connect_fd);
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return 1;
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}
-
memset(snd_buf,0,1024);
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strcpy(snd_buf,"message from client");
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//send info server
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for(i=0;i<4;i++)
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write(connect_fd,snd_buf,sizeof(snd_buf));
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close(connect_fd);
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return 0;
-
}
- //s_unix.c
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#define UNIX_DOMAIN "/tmp/UNIX.domain"
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int main(void)
-
{
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socklen_t clt_addr_len;
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int listen_fd;
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int com_fd;
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int ret;
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int i;
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static char recv_buf[1024];
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int len;
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struct sockaddr_un clt_addr;
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struct sockaddr_un srv_addr;
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listen_fd=socket(PF_UNIX,SOCK_STREAM,0);
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if(listen_fd<0)
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{
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perror("cannot create communication socket");
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return 1;
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}
-
-
//set server addr_param
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srv_addr.sun_family=AF_UNIX;
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strncpy(srv_addr.sun_path,UNIX_DOMAIN,sizeof(srv_addr.sun_path)-1);
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unlink(UNIX_DOMAIN);
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//bind sockfd & addr
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ret=bind(listen_fd,(struct sockaddr*)&srv_addr,sizeof(srv_addr));
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if(ret==-1)
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{
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perror("cannot bind server socket");
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close(listen_fd);
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unlink(UNIX_DOMAIN);
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return 1;
-
}
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//listen sockfd
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ret=listen(listen_fd,1);
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if(ret==-1)
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{
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perror("cannot listen the client connect request");
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close(listen_fd);
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unlink(UNIX_DOMAIN);
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return 1;
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}
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//have connect request use accept
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len=sizeof(clt_addr);
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com_fd=accept(listen_fd,(struct sockaddr*)&clt_addr,&len);
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if(com_fd<0)
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{
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perror("cannot accept client connect request");
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close(listen_fd);
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unlink(UNIX_DOMAIN);
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return 1;
-
}
-
//read and printf sent client info
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printf("/n=====info=====/n");
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for(i=0;i<4;i++)
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{
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memset(recv_buf,0,1024);
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int num=read(com_fd,recv_buf,sizeof(recv_buf));
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printf("Message from client (%d)) :%s/n",num,recv_buf);
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}
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close(com_fd);
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close(listen_fd);
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unlink(UNIX_DOMAIN);
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return 0;
-
}
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