diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/pwrite64.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/pwrite64.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/pwrite64.c b/sysdeps/unix/sysv/linux/i386/pwrite64.c new file mode 100644 index 0000000000..7a5d665de3 --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/pwrite64.c @@ -0,0 +1,57 @@ +/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <unistd.h> + +#include <sysdep.h> +#include <sys/syscall.h> + +#ifdef __NR_pwrite + +static ssize_t __emulate_pwrite64 (int fd, const void *buf, size_t count, + off64_t offset) internal_function; + + +ssize_t +__pwrite64 (fd, buf, count, offset) + int fd; + const void *buf; + size_t count; + off64_t offset; +{ + ssize_t result; + + /* First try the syscall. */ + result = INLINE_SYSCALL (pwrite, 5, fd, buf, count, + (off_t) (offset & 0xffffffff), + (off_t) (offset >> 32)); + if (result == -1 && errno == ENOSYS) + /* No system call available. Use the emulation. */ + result = __emulate_pwrite64 (fd, buf, count, offset); + + return result; +} + +weak_alias (__pwrite64, pwrite64) + +#define __pwrite64(fd, buf, count, offset) \ + static internal_function __emulate_pwrite64 (fd, buf, count, offset) +#endif +#include <sysdeps/posix/pwrite64.c> |