libif.c1

来自「世纪民生公司的cs6209的开发ftp服务器的演示源程序。」· C1 代码 · 共 114 行

/*
	Note : Don't remove or rename any function or variable if you work with 
	       MYSON libreary.
*/
#define LIBIF_C
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>

#include "hpserver.h"
#include "620xenet.h"
#include "timer.h"
#include "ether.h"
#include "netutil.h"
#include "net.h"
#include "ip.h"
#include "tcp.h"
#include "config.h"
#include "ftp.h"

GENFRAME genframe;                  /* Frame for network Tx/Rx */

NODE  locnode;                      /* My Ethernet and IP addresses */

/* Return ptr to local node 'n' (n=0 for first), return 0 if doesn't exist
** Used by IP functions to get my netmask & gateway addresses */

NODE *locnode_n(int n)
{
    return(n==0 ? &locnode : 0);
}

/* Upcall from TCP stack to server when opening, connecting, receiving data
** or closing. Return 0 to prevent connection opening, or close if connected 
Note: Don't remove or rename this function if you work with MYSON libreary.*/

int server_action(TSOCK *ts, CONN_STATE conn)
{
    WORD port;
    ts->connflags =ts->connflags|TURGE|TPUSH;   //Enable this line will set the Urgent and Push Flag in TCP/IP packet.
    port = ts->loc.port;

/*	printf("\nconnect from:%1bu.%1bu.%1bu.%1bu port:%d to port:%d",
			(unsigned char)((long)ts->rem.ip>>24),
			(unsigned char)((long)ts->rem.ip>>16),
			(unsigned char)((long)ts->rem.ip>>8),
			(unsigned char)((long)ts->rem.ip),
			((unsigned int)ts->rem.port),
			((unsigned int)ts->loc.port));
*/
    if (port==80){
//    		place code for HTTP server
	}
	else if (port==23){
//    		place code for TELNET server
	}

	return 0;
}

/* Upcall from TCP stack to client when opening, connecting, receiving data
** or closing. Return 0 to prevent connection opening, or close if connected 
Note: Don't remove or rename this function if you work with MYSON libreary.*/

int client_action(TSOCK *ts, CONN_STATE conn)
{
    ts->connflags =ts->connflags|TURGE|TPUSH;   //Enable this line will set the Urgent and Push Flag in TCP/IP packet.	
	if (ts->upcall)
	    return (ts->upcall(ts,conn));
	return 0;  //client socket doesn't have upcall function.    
}
/* Get a frame from the network, return length excl. hardware header */
int get_frame (GENFRAME xdata *gfp)      
{

    // check if anything is received on the Ethernet Interface

    if (gfp->g.dtype == DTYPE_ETHER)
       if ((gfp->g.len = Ethernet_Receive (gfp->buff))>0)
       {
          return (gfp->g.len - sizeof (ETHERHDR));
       }
    return (0);
}

extern xdata unsigned char nic_xmit_buf [];

/* Put frame out onto the network */
int put_frame (GENFRAME xdata *gfp, int len)  
{
    int ret=0;

    if (len > 0)
    {
       // wait until the last transmission is done
       while (!Ethernet_Transmit_Ready ());

       // copy to a page-aligned buffer
       memcpy (nic_xmit_buf, gfp->buff, (WORD)len);

       ret = Ethernet_Transmit (nic_xmit_buf, (WORD)len);

    }

    return(ret);
}/* Receive a UDP datagram: return non-0 if client state-change */
int udp_receive(GENFRAME *gfp, int len)
{
	return (0);
}
/******************/