NAME

acl_get_fd − Retrieves the specified ACL associated with the specified file or directory

SYNOPSIS

#include <sys/acl.h>
acl_t acl_get_fd(
        int fd,
        acl_type_t type_d );

LIBRARY

Security Library (libpacl.a)

PARAMETERS

fdDesignates the file descriptor of the file or directory to retrieve the ACL from. 

type_d
Designates the type of ACL to retrieve: ACL_TYPE_ACCESS, ACL_TYPE_DEFAULT, or ACL_TYPE_DEFAULT_DIR.

DESCRIPTION

NOTE:  This function is based on Draft 13 of the POSIX P1003.6 standard. 

The acl_get_fd() function retrieves the specified ACL for the given file descriptor. The acl_tag_t field designates if the ACL being retrieved is an access or default ACL. Working storage is allocated as needed. 

RETURN VALUES

Upon successful completion, the acl_get_fd() function returns a pointer to the working storage internal representation copy of the ACL. If the specified ACL type is ACL_TYPE_DEFAULT or ACL_TYPE_DEFAULT_DIR and the specified ACL doesn’t exist for the given file descriptor a value of NULL is returned.  If the specified ACL type is ACL_TYPE_ACCESS and the given file descriptor doesn’t have an access ACL a pointer to the working storage internal representation copy of the permission bits in ACL format is returned. Otherwise, a value of NULL is returned and errno is set to indicate the error. 

ERRORS

If any of the following conditions occur, the acl_get_fd() function sets errno to the corresponding value:

[EACCES]
The required access to the file or directory was denied.

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

[EINVAL]
The argument type_d is not a recognized ACL type. 

[ENOMEM]
There is not enough memory available to the process to allocate the working storage.

[ENOTDIR]
The type_d argument indicates a default ACL, and fd does not point to a directory. 

SEE ALSO

acl_get_file(3), acl_set_file(3), acl_set_fd(3)

Security