sysdeps/unix/sysv/linux/mmap64.c

   1 /* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Daniel Jacobowitz <dan@debian.org>, 1999.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <unistd.h>
  22
  23 #include <sysdep.h>
  24 #include <sys/syscall.h>
  25
  26 #include <sys/mman.h>
  27
  28 __ptr_t
  29 __mmap64 (addr, len, prot, flags, fd, offset)
  30      __ptr_t addr;
  31      size_t len;
  32      int prot;
  33      int flags;
  34      int fd;
  35      off64_t offset;
  36 {
  37   if (offset != (off_t) offset || (offset + len) != (off_t) (offset + len))
  38     {
  39       __set_errno (EINVAL);
  40       return MAP_FAILED;
  41     }
  42
  43   return __mmap (addr, len, prot, flags, fd, (off_t) offset);
  44 }
  45
  46 weak_alias (__mmap64, mmap64)