C++ compiler issue

[chiragrr]

I am trying to compile my program but am getting what I think are linker/compiler issues

chiragr@irrawaddy uname -a
Linux irrawaddy 2.6.23.8 #6 SMP Wed Nov 21 14:18:12 PST 2007 i686 AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux
chiragr@irrawaddy g++ -g main.cpp -l crypto -lsocket -lnsl
In file included from main.cpp:4:
Registration.h:118: warning: this decimal constant is unsigned only in ISO C90
Registration.h: In member function `int Registration::send_Raw(unsigned char*,
int, unsigned char*)':
Registration.h:205: error: `SOCKET' undeclared (first use this function)
Registration.h:205: error: (Each undeclared identifier is reported only once
for each function it appears in.)
Registration.h:205: error: parse error before `=' token
Registration.h:206: error: `SOCKADDR_IN' undeclared (first use this function)
Registration.h:208: error: `sock' undeclared (first use this function)
Registration.h:228: error: `sock_addr' undeclared (first use this function)

#include <iostream>

#include <stdlib.h>

#include <string>

#include <time.h>
#include <cstdlib>
#include <unistd.h>
#include <netinet/udp.h>
#include "/usr/include/sys/types.h"
#include "/usr/include/sys/socket.h"
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/wait.h>
#include <openssl/md5.h>
.
.
.
<snip>
  SOCKET sock = socket(AF_INET,SOCK_RAW,IPPROTO_UDP);
        SOCKADDR_IN sock_addr;
        char on = 1;
        setsockopt(sock,IPPROTO_IP,IP_HDRINCL,&on,sizeof(on));
        unsigned char  *udpchk, *ip_pack, sendbuf[128];
        int iUdpSize=0;
        IpHeader *iphdr;
        UdpHeader *udphdr, udpHdr;
        iphdr=(IpHeader *)sendbuf;

</snip>

[chiragrr]

I would like to add that instead of

#include "/usr/include/sys/types.h"
#include "/usr/include/sys/socket.h"

I originally had
#include <sys/types.h>
#include <sys/socket.h>