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/* Return the canonical absolute name of a given file.
Copyright (C) 1996-2007, 2009-2020 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef CANONICALIZE_H_
# define CANONICALIZE_H_
#include <stdlib.h> /* for canonicalize_file_name */
#define CAN_MODE_MASK (CAN_EXISTING | CAN_ALL_BUT_LAST | CAN_MISSING)
#ifdef __cplusplus
extern "C" {
#endif
enum canonicalize_mode_t
{
/* All components must exist. */
CAN_EXISTING = 0,
/* All components excluding last one must exist. */
CAN_ALL_BUT_LAST = 1,
/* No requirements on components existence. */
CAN_MISSING = 2,
/* Don't expand symlinks. */
CAN_NOLINKS = 4
};
typedef enum canonicalize_mode_t canonicalize_mode_t;
/* Return the canonical absolute name of file NAME, while treating
missing elements according to CAN_MODE. A canonical name
does not contain any `.', `..' components nor any repeated file name
separators ('/') or, depending on other CAN_MODE flags, symlinks.
Whether components must exist or not depends on canonicalize mode.
The result is malloc'd. */
char *canonicalize_filename_mode (const char *, canonicalize_mode_t);
#ifdef __cplusplus
}
#endif
#endif /* !CANONICALIZE_H_ */
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