/usr/include/kpathsea/readable.h is in libkpathsea-dev 2013.20130729.30972-2ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | /* readable.h: is a file readable?
Copyright 1993, 2008, 2009 Karl Berry.
Copyright 1999, 2005 Olaf Weber.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, see <http://www.gnu.org/licenses/>. */
#ifndef KPATHSEA_READABLE_H
#define KPATHSEA_READABLE_H
#include <kpathsea/c-proto.h>
#include <kpathsea/types.h>
/* If NAME is readable and is a regular file, return it. If the error is
ENAMETOOLONG, truncate any too-long path components, and if the
result is a readable file, return that. Otherwise return NULL. */
extern KPSEDLL string kpathsea_readable_file (kpathsea kpse, string name);
#if defined (KPSE_COMPAT_API)
extern KPSEDLL string kpse_readable_file (string name);
#endif
#endif /* not KPATHSEA_READABLE_H */
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