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DOS44.C
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C/C++ Source or Header
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1994-12-17
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327b
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21 lines
#include <errno.h>
#include <sys/doscalls.h>
int dos_ioctl(int handle, int code)
{
struct REGPACK r;
r.eax = 0x4400 | (code & 0xFF);
r.ebx = handle;
_intr(0x21, &r);
if (r.eflags & 1) {
_sys_doserror2errno( r.eax & 0xFFFF);
return (-1);
}
else
return (r.edx & 0xFFFF);
}