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sortix--sortix/libc/include/fcntl.h
Jonas 'Sortie' Termansen d7c8e1e6df Add O_ACCMODE.
2013-12-17 14:30:31 +01:00

74 lines
2.4 KiB
C

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
fcntl.h
File control options.
*******************************************************************************/
/* TODO: POSIX-1.2008 compliance is only partial */
#ifndef INCLUDE_FCNTL_H
#define INCLUDE_FCNTL_H
#include <features.h>
#include <sortix/fcntl.h>
#include <sortix/seek.h>
#include <sys/stat.h>
__BEGIN_DECLS
/* The kernel would like to simply deal with one bit for each base access mode,
but using the traditional names O_RDONLY, O_WRONLY and O_RDWR for this would
be weird, so it uses O_READ and O_WRITE bits instead. However, we provide the
traditional names here instead to remain compatible. */
#define O_RDONLY O_READ
#define O_WRONLY O_WRITE
#define O_RDWR (O_READ | O_WRITE)
/* Compatibility with Linux and other systems that have this. */
#define O_ACCMODE (O_READ | O_WRITE | O_EXEC | O_SEARCH)
/* TODO: F_* missing here */
/* TODO: F_RDLCK, F_UNLCK, F_WRLCK missing here */
/* TODO: AT_SYMLINK_FOLLOW missing here */
/* TODO: POSIX_FADV_* missing here */
@include(pid_t.h)
struct flock
{
short l_type; /* Type of lock; F_RDLCK, F_WRLCK, F_UNLCK. */
short l_whence; /* Type of lock; F_RDLCK, F_WRLCK, F_UNLCK. */
off_t l_start; /* Relative offset in bytes. */
off_t l_len; /* Size; if 0 then until EOF. */
pid_t l_pid; /* Process ID of the process holding the lock; returned with F_GETLK. */
};
int creat(const char* path, mode_t mode);
int fcntl(int fd, int cmd, ...);
int open(const char* path, int oflag, ...);
int openat(int fd, const char* path, int oflag, ...);
__END_DECLS
#endif