mirror of https://github.com/lianthony/NT4.0
111 lines
2.0 KiB
111 lines
2.0 KiB
#include <windows.h>
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#include <winsock.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define MAX_PACKET_SIZE 65516
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WSADATA WsaData;
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int _CRTAPI1 main(int argc, char **argv, char **envp)
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{
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SOCKET serve_me;
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char *dstName;
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int Port;
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struct sockaddr addr;
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int addrlen;
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struct sockaddr_in *in_addr = (struct sockaddr_in *)&addr;
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struct in_addr inaddr;
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int count = 0;
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char *buf;
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int i;
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int rcvcnt;
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int err;
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if(argc<2){
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printf("usage: upongsrv port\n");
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exit(4);
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}
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Port = atoi(argv[1]);
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err = WSAStartup( 0x0101, &WsaData );
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if ( err == SOCKET_ERROR ) {
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printf("tpongsrv: WSAStartup %d:", GetLastError());
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exit(1);
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}
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if ((buf = malloc(MAX_PACKET_SIZE)) == NULL) {
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printf("out of memory\n");
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exit(1);
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}
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if((serve_me=socket(PF_INET,SOCK_DGRAM,0))==INVALID_SOCKET){
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printf("Died on socket()\n");
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exit(4);
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}
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memset(&addr,0,sizeof(addr));
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in_addr->sin_family = AF_INET;
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in_addr->sin_port = htons(Port);
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in_addr->sin_addr.s_addr = 0;
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if(bind(serve_me,&addr,sizeof(addr))==SOCKET_ERROR){
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printf("Died on bind() with %d\n", WSAGetLastError());
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closesocket(serve_me);
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exit(9);
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}
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while(1) {
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addrlen = sizeof(addr);
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if( (rcvcnt = recvfrom(
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serve_me,
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buf,
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MAX_PACKET_SIZE,
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0,
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&addr,
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&addrlen
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))
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==SOCKET_ERROR
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){
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printf("recvfrom failed %d\n",WSAGetLastError());
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exit(9);
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}
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if( sendto(
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serve_me,
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buf,
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rcvcnt,
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0,
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&addr,
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sizeof(addr)
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)
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==SOCKET_ERROR
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){
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printf("sendto failed %d\n",WSAGetLastError());
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exit(9);
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}
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if ((++count % 500) == 0) {
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printf("#");
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}
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}
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closesocket(serve_me);
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}
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int init_net()
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{
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WORD wVersionRequired;
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WSADATA versionInfo;
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wVersionRequired = 1<<8 | 0;
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if(WSAStartup(wVersionRequired, &versionInfo)){
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printf("died in WSAStartup() %d\n",WSAGetLastError());
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exit(9);
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}
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return 0;
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}
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