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   acl_get_fd    ( 3 )

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Имя (Name)

acl_get_fd — get an ACL by file descriptor

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Библиотека (Library)

Linux Access Control Lists library (libacl, -lacl).

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Синопсис (Synopsis)

#include <sys/types.h>
     #include <sys/acl.h>

     acl_t
     acl_get_fd(int fd);

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Описание (Description)

The acl_get_fd() function retrieves the access ACL associated with
     the file referred to by fd.  The ACL is placed into working storage
     and acl_get_fd() returns a pointer to that storage.

     In order to read an ACL from an object, a process must have read
     access to the object's attributes.

     This function may cause memory to be allocated.  The caller should
     free any releasable memory, when the new ACL is no longer required,
     by calling acl_free(3) with the (void*)acl_t returned by
     acl_get_fd() as an argument.

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Возвращаемое значение (Return value)

On success, this function shall return a pointer to the working
     storage.  On error, a value of (acl_t)NULL shall be returned, and
     errno is set appropriately.

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Ошибки (Error)

If any of the following conditions occur, the acl_get_fd() function
     returns a value of (acl_t)NULL and sets errno to the corresponding
     value:

     [EBADF]            The fd argument is not a valid file descriptor.

     [ENOMEM]           The ACL working storage requires more memory
                        than is allowed by the hardware or system-
                        imposed memory management constraints.

     [ENOTSUP]          The file system on which the file identified by
                        fd is located does not support ACLs, or ACLs are
                        disabled.

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Стандарты (Conforming to)

IEEE Std 1003.1e draft 17 ('POSIX.1e', abandoned)

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Смотри также (See also)

acl_free(3), acl_get_entry(3), acl_get_file(3), acl_set_fd(3),
     acl(5)

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