http_get_info

#include <net_config.h>

void http_get_info (
    REMOTEM* info );    /* Pointer to structure to copy     */
                        /* remote machine information into. */

The http_get_info function obtains information about the remote machine and records the remote machine's IP address and MAC address in the memory pointed to by the info argument.

The http_get_info function is a system function that is in the RL-TCPnet library. The prototype is defined in net_config.h.

Note

• You can use the IP address or MAC address information to restrict which remote machines are allowed to perform system changes.
• For PPP and SLIP links, the function records 00-00-00-00-00-00 as the MAC address in info.

The http_get_info function does not return any value, but the information about the remote machine gets stored in the info argument.

cgi_func

U16 cgi_func (U8 *env, U8 *buf, U16 buflen, U32 *pcgi) {
  REMOTEM info;
  U16 len = 0;

   ..
  http_get_info (&info);
  /* Print a remote IP address. */
  len  = sprintf(buf,"Your IP: %d.%d.%d.%d",info.IpAdr[0], info.IpAdr[1],
                                            info.IpAdr[2], infn.IpAdr[3]);
  /* Print a remote ethernet MAC address. */
  len += sprintf(buf+len,"Your MAC: %02x-%02x-%02x-%02x-%02x-%02x",
                                            info.HwAdr[0], info.HwAdr[1],
                                            info.HwAdr[2], info.HwAdr[3],
                                            info.HwAdr[4], info.HwAdr[5]);
   ..
  return (len);
}