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   canonicalize_file_name    ( 3 )

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Имя (Name)

canonicalize_file_name - return the canonicalized absolute
       pathname

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Синопсис (Synopsis)

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

       char *canonicalize_file_name(const char *path);

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Описание (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
       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);

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Возвращаемое значение (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.

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Ошибки (Error)

See realpath(3).

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Атрибуты (Attributes)

For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             │ Attribute     │ Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │canonicalize_file_name()              │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

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Стандарты (Conforming to)

This function is a GNU extension.

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Смотри также (See also)

readlink(2), realpath(3)

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