getting socket info

socket_info.cpp

#include <arpa/inet.h>
#include <string>
using std::string;
string getSocketIP(int socketDescriptor)
{
  string ipAddress;
  unsigned short remotePort;  // port as well if you need it
  sockaddr address;
  socklen_t theSize = sizeof(address);
  const int BUFFER_LEN = 60;
  char ipAddressBuffer[BUFFER_LEN];
  ::getpeername(socketDescriptor, &address, &theSize);
  switch (address.sa_family)
  {
  case AF_INET:
      inet_ntop(AF_INET, &((sockaddr_in *)&address)->sin_addr, ipAddressBuffer, BUFFER_LEN);
      remotePort=((sockaddr_in *)&address)->sin_port;
      ipAddress = ipAddressBuffer;
      break;
  case AF_INET6:
      inet_ntop(AF_INET6, &((sockaddr_in6 *)&address)->sin6_addr, ipAddressBuffer, BUFFER_LEN);
      ipAddress = ipAddressBuffer;
      remotePort=((sockaddr_in6 *)&address)->sin6_port;
      break;
  default:
      break;
  }

  return ipAddress;
}