#ifndef _ERRNO_H
#define _ERRNO_H

extern int errno;
int *__errno_location(void);

// Standard error codes (subset; matches glibc numbering).
#define EPERM   1
#define ENOENT  2
#define EIO     5
#define EBADF   9
#define ENOMEM  12
#define EACCES  13
#define EINVAL  22
#define ENOSPC  28

#endif