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40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* Copyright (C) 2011-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/param.h>
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#ifdef HAVE_INLINED_SYSCALLS
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# include <errno.h>
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# include <sysdep.h>
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#endif
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ssize_t
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__readlink_chk (const char *path, void *buf, size_t len, size_t buflen)
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{
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if (len > buflen)
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__chk_fail ();
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#ifdef HAVE_INLINED_SYSCALLS
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return INLINE_SYSCALL (readlinkat, 4, AT_FDCWD, path, buf, len);
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#else
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return __readlink (path, buf, len);
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#endif
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}
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