p12-23.c

来自「SUN Solaris8平台下进程间通信」· C语言 代码 · 共 31 行

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/un.h>
#include "err_exit.h"
#define SERVER  "/tmp/serversocket"
#define MAXMSG  512
int main(void)
{
    int sock;
    char message[MAXMSG];
    struct sockaddr_un name;
    size_t size;
    int nbytes;
    /* 创建套接字*/
    sock = make_named_socket(SERVER);
    while(1){
        /* 等待数据报 */
        size = sizeof(name);
        nbytes = recvfrom(sock, message, MAXMSG, 0,(struct sockaddr *)&name, &size);
        if (nbytes < 0)
            err_exit("recfrom (server)");
        /* 打印出收到的消息 */
        printf("Server: got message: %s\n", message);
        /* 将消息返回给发送者 */
        nbytes = sendto(sock, message, nbytes, 0,(struct sockaddr *)&name, size);
        if (nbytes < 0)
            err_exit("sendto(server)");
    }
}