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canonicalize_file_name — return the canonicalized absolute pathname
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <stdlib.h>
char
*canonicalize_file_name( |
const char *path); |
The canonicalize_file_name()
function returns a null-terminated string containing the
canonicalized absolute pathname corresponding to path. In the returned string,
symbolic links are resolved, as are . and ..
pathname components. Consecutive slash (/) characters are replaced by a single
slash.
The returned string is dynamically allocated by
canonicalize_file_name() and
the caller should deallocate it with free(3) when it is no
longer required.
The call canonicalize_file_name(path)
is equivalent to the call:
realpath(path, NULL);
On success, canonicalize_file_name() returns a
null-terminated string. On error (e.g., a pathname component
is unreadable or does not exist), canonicalize_file_name() returns NULL and
sets errno to indicate the
error.
This page is part of release 3.52 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man−pages/.
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Copyright 2013 Michael Kerrisk (mtk.manpagesgmail.com). (Replaces an earlier page by Walter Harms and Michael Kerrisk) %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. %%%LICENSE_END |