nativelibc/errno.c

#include <errno.h>

static int errno_private = 0;

#if 0

struct errentry {
	unsigned long int ntstatus;
	int errno;
};

static struct errentry errtable[] = {
	{ 0x00000000L,	0	},
	{ 0x00000102L,	ETIME	}
};

int ntstatus_to_errno(unsigned long int ntstatus){
	int i;
	for(i = 0; i < (sizeof errtable / sizeof *errtable); i++) if(ntstatus == errtable.ntstatus) return errno_private = errtable.errno;
	return errno_private = ntstatus_to_errno_other(ntstatus);
}

#else

static int ntstatus_to_errno_other(unsigned long int ntstatus){
	if(ntstatus <= 0xC0000403L && ntstatus >= 0xC0000401L) return EDQUOT;
	if(ntstatus <= 0xC0000018L && ntstatus >= 0xC000001BL) return EFAULT;
	if(ntstatus <= 0x80000015L && ntstatus >= 0x80000013L) return EINVAL;
	if(ntstatus <= 0x000000BFL && ntstatus >= 0x00000080L) return EOWNERDEAD;
}

int ntstatus_to_errno(unsigned long int ntstatus){
	switch(ntstatus){
		case 0x00000000L: return errno_private = 0;
		case 0x00000102L: return errno_private = ETIME;
		case 0x00000106L: return errno_private = EACCES
		case 0x00000104L:
		case 0x00000118L: return errno_private = ENOLINK;
		case 0x00000107L: return errno_private = ENOMSG;
		case 0x0000010DL:
		case 0xC0000007L:
		case 0xC0000031L:
		case 0xC0000044L:
		case 0xC000012CL:
		case 0xC00002E7L:
		case 0xC0000410L:
		case 0xC0000802L: return errno_private = EDQUOT;
		case 0x0000010EL: return errno_private = ECONNABORTED;
		case 0x00000114L: return errno_private = EHWPOISON;
		case 0x00000119L:
		case 0x80000011L:
		case 0xC0000016L: return errno_private = EBUSY;

		case 0x40000003L:
		case 0x4000000EL:
		case 0x40000023L: return errno_private = ENOEXEC;
		case 0x4000001BL:
		case 0x40190035L: return errno_private = EALREADY;
		case 0x401E000AL:
		case 0x80000001L:
		case 0x80000005L:
		case 0x801C0001L:
		case 0xC0000023L: return errno_private = ENOBUFS;
		case 0x401E034BL: 
		case 0x401E034CL:
		case 0xC0000008L: return errno_private = EBADR;
		case 0x401E042FL:
		case 0x8000000FL:
		case 0xC000000EL: return errno_private = ENODEV;
		case 0x80000017L: return errno_private = EMSGSIZE;
		case 0x80000025L:
		case 0x80130004L:
		case 0xC0000037L: return errno_private = ENOTCONN;
		case 0x80000288L: return errno_private = EUCLEAN;
		case 0x80130003L: return errno_private = EISCONN;
		case 0x80190031L:
		case 0xC0000022L:
		case 0xC0000038L: return errno_private = EACCES;
		case 0x80210001L:
		case 0xC0000006L:
		case 0xC0000020L:
		case 0xC000002BL:
		case 0xC0000032L: return errno_private = EIO;
		case 0xC0000002L: return errno_private = ENOSYS;
		case 0xC0000003L:
		case 0xC000000DL:
		case 0xC000001CL:
		case 0xC000001FL:
		case 0xC0000030L:
		case 0xC0000033L: return errno_private = EINVAL;
		case 0xC0000005L:
		case 0xC0000009L:
		case 0xC000000AL: 
		case 0xC000001DL:
		case 0xC0000025L:
		case 0xC000002CL: return errno_private = EFAULT;
		case 0xC000000FL:
		case 0xC0000034L:
		case 0xC000003AL: return errno_private = ENOENT;
		case 0xC0000010L: return errno_private = EPERM;
		case 0xC0000012L:
		case 0xC0000014L: return errno_private = EMEDIUMTYPE;
		case 0xC0000013L: return errno_private = ENOMEDIUM;
		case 0xC0000467L: return errno_private = ETXTBSY;
		//case 0x00000080L: return errno_private = EOWNERDEAD;
		//default: return errno_private = EINVAL;
		//default: return errno_private = -1;
	}
	return errno_private = ntstatus_to_errno_other(ntstatus);
}

#endif

int *_errno(){
	return &errno_private;
}