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3eb515a631
* sysdeps/unix/sysv/linux/syscalls.list: Remove mmap64 alias for mmap. * sysdeps/unix/sysv/linux/mmap64.c: Test whether mapped area is in range of mmap. If not fail. Patches by Daniel Jacobowitz <dan@debian.org>.
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Daniel Jacobowitz <dan@debian.org>, 1999.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <unistd.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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#include <sys/mman.h>
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__ptr_t
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__mmap64 (addr, len, prot, flags, fd, offset)
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__ptr_t addr;
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size_t len;
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int prot;
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int flags;
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int fd;
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off64_t offset;
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{
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if (offset != (off_t) offset || (offset + len) != (off_t) (offset + len))
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{
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__set_errno (EINVAL);
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return MAP_FAILED;
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}
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return __mmap (addr, len, prot, flags, fd, (off_t) offset);
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}
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weak_alias (__mmap64, mmap64)
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