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A
acl_get_file()
Get the ACL for a given path

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      - abort()
        Raise the SIGABRT signal to terminate program execution
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        Return the absolute value of an integer
      - access()
        Check to see if a file or directory can be accessed
      - acl_add_perm()
        Add a permission to an access control list (ACL) permissions set
      - acl_calc_mask()
        Calculate the group class mask for an access control list (ACL)
      - acl_clear_perms()
        Clear all permissions from an ACL permissions set
      - acl_copy_entry()
        Copy the contents of one ACL entry into another
      - acl_copy_ext()
        Copy an ACL from system space to user space
      - acl_copy_int()
        Copy an ACL from user space to system space
      - acl_create_entry()
        Create an entry in an access control list
      - acl_delete_entry()
        Delete an entry from an access control list (ACL)
      - acl_delete_perm()
        Delete a permission from an ACL permissions set
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        Duplicate an access control list (ACL) in a working storage area
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        Free the working storage area allocated for an access control list (ACL) data object
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        Create an access control list (ACL) from text
      - acl_get_entry()
        Get an entry in an access control list (ACL)
      - acl_get_fd()
        Get the access control list associated with a file descriptor
      - acl_get_file()
        Get the ACL for a given path
      - acl_get_perm_np()
        Test whether a given permission is present in an ACL permissions set
      - acl_get_permset()
        Get a permissions set from an ACL entry
      - acl_get_qualifier()
        Get the qualifier from an ACL entry
      - acl_get_tag_type()
        Get the type of tag from an ACL entry
      - acl_init()
        Allocate and initialize an access control list (ACL) working storage area
      - acl_set_fd()
        Set the access ACL for the object associated with a file descriptor
      - acl_set_file()
        Set the access control list for a path
      - acl_set_permset()
        Set the permissions set in an ACL entry
      - acl_set_qualifier()
        Set the qualifier for an ACL entry
      - acl_set_tag_type()
        Set the tag type of an ACL entry
      - acl_size()
        Determine the size of the external form of an ACL
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        Convert an access control list (ACL) into text
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        Validate an access control list (ACL)
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acl_get_file()

QNX SDP8.0C Library ReferenceAPIDeveloper

Get the ACL for a given path

Synopsis:

#include <sys/acl.h>

acl_t acl_get_file( const char *path_p,
                    acl_type_t type );

Arguments:

path_p: The path that you want to get the ACL for.
type: The type of ACL; this must currently be ACL_TYPE_ACCESS.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The acl_get_file() function gets the ACL associated with the given file or directory, copies it into working storage, and returns a pointer to that storage. When you're finished with the ACL, you should call acl_free() to release it.

Note:

The ACL in working storage is independent of the file or directory's ACL. Changes that you make to the copy in working storage don't affect the file or directory's ACL.

Returns:

A pointer to the ACL in working storage, or NULL if an error occurred (errno is set).

Errors:

EACCES: Search permission was denied for a component of the path prefix, or the object exists and the process doesn't have the appropriate access rights.
EINVAL: The type argument is not ACL_TYPE_ACCESS.
ENAMETOOLONG: The length of the path_p argument exceeds PATH_MAX.
ENOENT: The named object doesn't exist, or path_p is an empty string.
ENOMEM: There wasn't enough memory available to create the ACL in working storage.
ENOTDIR: A component of the path prefix isn't a directory.

Classification:

This function is based on the withdrawn POSIX draft P1003.1e.


Safety:
Cancellation point	No
Signal handler	No
Thread	Yes

Page updated: August 09, 2024