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Mac adresse from netcard

Posted on 2000-03-24
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Last Modified: 2010-04-02
Hi

Some pascal/C code how to get the mac adresse from a netcard, the program must be runned under DOS.
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Question by:koger
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jbodom earned 800 total points
ID: 2692288
Try this:

   #include <windows.h>
   #include <wincon.h>
   #include <stdlib.h>
   #include <stdio.h>
   #include <time.h>

   typedef struct _ASTAT_
   {

      ADAPTER_STATUS adapt;
      NAME_BUFFER    NameBuff [30];

   }ASTAT, * PASTAT;

   ASTAT Adapter;

   void main (void)
   {
      NCB Ncb;
      UCHAR uRetCode;
      char NetName[50];
      LANA_ENUM   lenum;
      int      i;

      memset( &Ncb, 0, sizeof(Ncb) );
      Ncb.ncb_command = NCBENUM;
      Ncb.ncb_buffer = (UCHAR *)&lenum;
      Ncb.ncb_length = sizeof(lenum);
      uRetCode = Netbios( &Ncb );
      printf( "The NCBENUM return code is: 0x%x \n", uRetCode );

      for(i=0; i < lenum.length ;i++)
      {
          memset( &Ncb, 0, sizeof(Ncb) );
          Ncb.ncb_command = NCBRESET;
          Ncb.ncb_lana_num = lenum.lana[i];

          uRetCode = Netbios( &Ncb );
          printf( "The NCBRESET on LANA %d return code is: 0x%x \n",
                  lenum.lana[i], uRetCode );

          memset( &Ncb, 0, sizeof (Ncb) );
          Ncb.ncb_command = NCBASTAT;
          Ncb.ncb_lana_num = lenum.lana[i];

          strcpy( Ncb.ncb_callname,  "*               " );
          Ncb.ncb_buffer = (char *) &Adapter;
          Ncb.ncb_length = sizeof(Adapter);

          uRetCode = Netbios( &Ncb );
          printf( "The NCBASTAT on LANA %d return code is: 0x%x \n",
                  lenum.lana[i], uRetCode );
          if ( uRetCode == 0 )
          {
             printf( "The Ethernet Number on LANA %d is:
                     %02x%02x%02x%02x%02x%02x\n",
            lenum.lana[i],
                  Adapter.adapt.adapter_address[0],
                  Adapter.adapt.adapter_address[1],
                  Adapter.adapt.adapter_address[2],
                  Adapter.adapt.adapter_address[3],
                  Adapter.adapt.adapter_address[4],
                  Adapter.adapt.adapter_address[5] );
          }
       }

   }
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