canonicalize_file_name man page on ElementaryOS

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CANONICALIZE_FILE_NAME(3)  Linux Programmer's Manual CANONICALIZE_FILE_NAME(3)

NAME
       canonicalize_file_name - return the canonicalized absolute pathname

SYNOPSIS
       #define _GNU_SOURCE	   /* See feature_test_macros(7) */
       #include <stdlib.h>

       char *canonicalize_file_name(const char *path);

DESCRIPTION
       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  canonicalā€
       ize_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);

RETURN VALUE
       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.

ERRORS
       See realpath(3).

CONFORMING TO
       This function is a GNU extension.

SEE ALSO
       readlink(2), realpath(3)

COLOPHON
       This page is part of release 3.54 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/.

GNU				  2013-05-11	     CANONICALIZE_FILE_NAME(3)
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