tcp_cli.c

   1 #include <stdio.h>
   2 #include <sys/socket.h>
   3 #include <sys/epoll.h>
   4 #include <netinet/in.h>
   5 #include <arpa/inet.h>
   6 #include <fcntl.h>
   7 #include <unistd.h>
   8 #include <errno.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <errno.h>
  12
  13 int main(){
  14         int fd;
  15         struct sockaddr_in clientaddr;
  16         char  recvline[1000] = "abcdef";
  17         int n = 0;
  18         if((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
  19                 perror("socket create error");
  20
  21         bzero(&clientaddr, sizeof(clientaddr));
  22         clientaddr.sin_family = AF_INET;
  23         inet_aton("127.0.0.1",&(clientaddr.sin_addr));
  24         clientaddr.sin_port = htons(1235);
  25
  26         if(connect(fd, (struct sockaddr *)&clientaddr,sizeof(clientaddr)) < 0)
  27                 perror("connect error");
  28         printf("%d\n",fd);
  29         while((n = write(fd, recvline,6))>0){
  30                 printf("recvline = %s",recvline);
  31                 if(n > 0)
  32                         break;
  33         }
  34         if (n < 0)
  35                 perror("write error");
  36
  37         exit(0);
  38 }