[ECOS] about read(...) of TCP/IP

["ylyuan" <ylyuan at davform dot com>]

Hi,part of my program is:
     if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
              printf("error to creat a socket\n");
              exit(1);
    }
    if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
              printf("error to connect\n");
              exit(1);
     }
     read(s,buf,sizeof(buf));
Because the destination connected is a pop3 server,the function of read should gain some information ,but it won't return.From the buffer of hardware,I can see the information that I want.Because the test of ppp_ping.c runs right,so I doubt the question exists in TCP.
    Thanks a lot!