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/* vi: set sw=4 ts=4: */
/*
* __syscall_fcntl() for uClibc
*
* Copyright (C) 2006 Steven J. Hill <sjhill@realitydiluted.com>
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <sys/syscall.h>
#include <stdarg.h>
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
#include <sysdep-cancel.h> /* Must come before <fcntl.h>. */
#endif
#include <fcntl.h>
#include <bits/wordsize.h>
extern __typeof(fcntl) __libc_fcntl;
libc_hidden_proto(__libc_fcntl)
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
int __fcntl_nocancel (int fd, int cmd, ...)
{
va_list ap;
void *arg;
va_start (ap, cmd);
arg = va_arg (ap, void *);
va_end (ap);
# if __WORDSIZE == 32
if (cmd == F_GETLK64 || cmd == F_SETLK64 || cmd == F_SETLKW64) {
# if defined __UCLIBC_HAS_LFS__ && defined __NR_fcntl64
return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
# else
__set_errno(ENOSYS);
return -1;
# endif
}
# endif
return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg);
}
#endif
int __libc_fcntl (int fd, int cmd, ...)
{
va_list ap;
void *arg;
va_start (ap, cmd);
arg = va_arg (ap, void *);
va_end (ap);
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
if (SINGLE_THREAD_P || (cmd != F_SETLKW && cmd != F_SETLKW64))
# if defined __UCLIBC_HAS_LFS__ && defined __NR_fcntl64
return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
# else
return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg);
# endif
int oldtype = LIBC_CANCEL_ASYNC ();
# if defined __UCLIBC_HAS_LFS__ && defined __NR_fcntl64
int result = INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
# else
int result = INLINE_SYSCALL (fcntl, 3, fd, cmd, arg);
# endif
LIBC_CANCEL_RESET (oldtype);
return result;
#else
# if __WORDSIZE == 32
if (cmd == F_GETLK64 || cmd == F_SETLK64 || cmd == F_SETLKW64) {
# if defined __UCLIBC_HAS_LFS__ && defined __NR_fcntl64
return INLINE_SYSCALL (fcntl64, 3, fd, cmd, arg);
# else
__set_errno(ENOSYS);
return -1;
# endif
}
# endif
return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg);
#endif
}
libc_hidden_def(__libc_fcntl)
libc_hidden_proto(fcntl)
weak_alias(__libc_fcntl,fcntl)
libc_hidden_weak(fcntl)
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