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/** @file
Function declarations for UEFI "system calls".
Concept derived from NetBSD's unistd.h file.
Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _EFI_SYS_CALL_H
#define _EFI_SYS_CALL_H
#include <sys/EfiCdefs.h>
#include <sys/types.h>
struct stat; // Structure declared in <sys/stat.h>
#define STDIN_FILENO 0 /* standard input file descriptor */
#define STDOUT_FILENO 1 /* standard output file descriptor */
#define STDERR_FILENO 2 /* standard error file descriptor */
/* access function */
#define F_OK 0 /* test for existence of file */
#define X_OK 0x01 /* test for execute or search permission */
#define W_OK 0x02 /* test for write permission */
#define R_OK 0x04 /* test for read permission */
/* whence values for lseek(2) */
#define SEEK_SET 0 /* set file offset to offset */
#define SEEK_CUR 1 /* set file offset to current plus offset */
#define SEEK_END 2 /* set file offset to EOF plus offset */
__BEGIN_DECLS
/* EFI versions of BSD system calls used in stdio */
extern int close (int fd);
extern ssize_t read (int fd, void *buf, size_t n);
extern ssize_t write (int fd, const void *buf, size_t n);
extern int unlink (const char *name);
extern int dup2 (int, int);
extern int rmdir (const char *);
extern int isatty (int);
/* These system calls are also declared in sys/fcntl.h */
#ifndef __FCNTL_SYSCALLS_DECLARED
#define __FCNTL_SYSCALLS_DECLARED
extern int open (const char *name, int oflags, int mode);
extern int creat (const char *, mode_t);
extern int fcntl (int, int, ...);
#endif // __FCNTL_SYSCALLS_DECLARED
/* These system calls are also declared in stat.h */
#ifndef __STAT_SYSCALLS_DECLARED
#define __STAT_SYSCALLS_DECLARED
extern int mkdir (const char *, mode_t);
extern int fstat (int, struct stat *);
extern int lstat (const char *, struct stat *);
extern int stat (const char *, void *);
// extern int chmod (const char *, mode_t);
#endif // __STAT_SYSCALLS_DECLARED
// These are also declared in sys/types.h
#ifndef __OFF_T_SYSCALLS_DECLARED
#define __OFF_T_SYSCALLS_DECLARED
extern off_t lseek (int, off_t, int);
extern int truncate (const char *, off_t);
extern int ftruncate (int, off_t); // IEEE Std 1003.1b-93
#endif /* __OFF_T_SYSCALLS_DECLARED */
/* These system calls don't YET have EFI implementations. */
extern int access (const char *path, int amode);
extern int chdir (const char *);
extern char *getcwd (char *, size_t);
extern int reboot (int, char *);
__END_DECLS
#endif /* _EFI_SYS_CALL_H */
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