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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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