sendto  error code :13 

Permission denied

**********************************************************************************

char sIP[15];   
if(pIP != NULL)
strcpy(sIP, pIP);


struct sockaddr_in myaddr_in;
m_nSock = socket (AF_INET, SOCK_DGRAM, 0);
if (-1==m_nSock)
{
fprintf(stderr, "socket ERROR %d: \n", errno);

return -1;
}


servaddr_in.sin_family = AF_INET;
servaddr_in.sin_addr.s_addr = inet_addr(sIP);
servaddr_in.sin_port = htons(m_nPort);
int nSendLen = sendto (m_nSock, pBuf, nLen, 0, (struct sockaddr*)&servaddr_in, sizeof(struct sockaddr_in));
if (-1==nSendLen)
{
fprintf(stderr, "UDP ERROR %d: Cannot send data to %s:%d\n", errno, sIP, m_nPort);
return (-1);
}

**********************************************************************************

out of memory:  char sIP[15];   strlen( "***.***.***.***")>15