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C/C++ code:

struct timeval timeout;
fd_set writefds;
const char* optival;
int nByte = MAX_REV_SIZE;
writefds.fd_count = 1;
writefds.fd_array[0] = m_sock;

timeout.tv_sec = 10;
timeout.tv_usec = 0;

optival = (const char *)&nByte;
setsockopt(SI->m_sock, SOL_SOCKET, SO_RCVBUF, optival, 4);

status = select(0, NULL, &writefds, NULL,(const struct timeval *)&timeout);



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writefds.fd_count = 1;  
writefds.fd_array[0] = m_sock;
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FD_SET(m_sock, &writefds)
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  struct hostent *hp; 
char AlarmDevIP[20];  
  int x2;

hp = gethostbyname("www.google.com");
if (hp)
{ ......

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