Реферат: Интранет сети

int ipx_spx_installed(void)

{

union REGS regs;

struct SREGS sregs;

regs.x.ax = 0x7a00;

int86x(0x2f, &regs, &regs, &sregs);

if (regs.h.al != 0xff) return -1;

ipx_spx = MK_FP(sregs.es, regs.x.di);

_BX = 0x0010;

_AL = 0x00;

ipx_spx();

if (_AL == 0x00) return 0;

return 1;

}

int ipx_cancel_event(struct ECB *ecb_ptr)

{

_ES = FP_SEG( (void far *) ecb_ptr);

_SI = FP_OFF( (void far *) ecb_ptr);

_BX = 0x0006;

ipx_spx();

_AH = 0;

return _AX;

}

void close_socket(unsigned int socket)

{

if (ipx_spx_installed() < 1) return;

_BX = 0x0001;

_DX = socket;

ipx_spx();