Sockets: Difference between revisions

Content added Content deleted

Inline

@@ Line 170: / Line 170: @@
 int main()
 {
-   int r, i, sock, len, slen;
+   int i, sock, len, slen;
-   char *pm = msg;
-   struct addrinfo hints, *res;
+   struct addrinfo hints, *addrs;
    memset(&hints, 0, sizeof(struct addrinfo));
    hints.ai_family = AF_UNSPEC;
    hints.ai_socktype = SOCK_STREAM;
-   r = getaddrinfo("localhost", "256", &hints, &res);
+   if (0 == getaddrinfo("localhost", "256", &hints, &addrs))
-   if ( r == 0 )
    {
-       sock = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+       sock = socket(addrs->ai_family, addrs->ai_socktype, addrs->ai_protocol);
        if ( sock >= 0 )
        {
-           if ( connect(sock, res->ai_addr, res->ai_addrlen) >= 0 )
+           if ( connect(sock, addrs->ai_addr, addrs->ai_addrlen) >= 0 )
            {
+               char *pm = msg;
                do
                {
@@ Line 191: / Line 190: @@
                   slen = send(sock, pm, len, 0);
                   pm += slen;
-               } while ( slen < len );
+               } while ((0 <= slen) && (slen < len));
            }
            close(sock);
        }
-       freeaddrinfo(res);
+       freeaddrinfo(addrs);
    }
 }</lang>