acl_get_qualifier(3) [osx man page]

ACL_GET_QUALIFIER(3)					   BSD Library Functions Manual 				      ACL_GET_QUALIFIER(3)

NAME

     acl_get_qualifier -- retrieve the qualifier from an ACL entry

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

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

     void *
     acl_get_qualifier(acl_entry_t entry_d);

DESCRIPTION

     The acl_get_qualifier() function is a POSIX.1e call that retrieves the qualifier of the tag for the ACL entry indicated by the argument
     entry_d into working storage and returns a pointer to that storage.

     If the value of the tag type in the ACL entry referred to by entry_d is ACL_EXTENDED_ALLOW or ACL_EXTENDED_DENY The value returned by
     acl_get_qualifier() will be a pointer to type guid_t.

     If the value of the tag type in the ACL entry referred to by entry_d is ACL_UNDEFINED_TAG, a tag type specified by POSIX.1e but not supported
     or an implementation-defined value for which a qualifier is not supported, then acl_get_qualifier() will return a value of (void *)NULL and
     the function will fail.

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

RETURN VALUES

     The acl_get_qualifier() function returns a pointer to the allocated storage if successful; otherwise a NULL pointer is returned and the
     global variable errno is set to indicate the error.

ERRORS

     The acl_get_qualifier() fails if:

     [EINVAL]		Argument entry_d does not point to a valid descriptor for an ACL entry.  The value of the tag type in the ACL entry refer-
			enced by argument entry_d is not ACL_EXTENDED_ALLOW or ACL_EXTENDED_DENY.

     [ENOMEM]		The value to be returned requires more memory than is allowed by the hardware or system-imposed memory management con-
			straints.

SEE ALSO

     acl(3), acl_create_entry(3), acl_free(3), acl_get_entry(3), acl_get_tag_type(3), acl_set_qualifier(3), acl_set_tag_type(3), posix1e(3)

STANDARDS

     POSIX.1e is described in IEEE POSIX.1e draft 17.

AUTHORS

     Michael Smith
     Chris D. Faulhaber

BSD
								  March 13, 2001							       BSD

Check Out this Related Man Page

ACL_CREATE_ENTRY(3)					   BSD Library Functions Manual 				       ACL_CREATE_ENTRY(3)

NAME

     acl_create_entry, acl_create_entry_np -- create a new ACL entry

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

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

     int
     acl_create_entry(acl_t *acl_p, acl_entry_t *entry_p);

     int
     acl_create_entry_np(acl_t *acl_p, acl_entry_t *entry_p, int entry_index);

DESCRIPTION

     The acl_create_entry() function is a POSIX.1e call that creates a new ACL entry in the ACL pointed to by acl_p.  The function will return in
     entry_p a descriptor for this ACL entry.

     The acl_create_entry_np() function is a non-portable extension which allows the caller to specify the position of the created entry within
     the ACL.  If entry_index is ACL_FIRST_ENTRY the entry will be created at the head of the ACL.  If entry_index is ACL_LAST_ENTRY the entry
     will be created at the end of the ACL.  After inserting an ACL entry with an entry_index other than ACL_LAST_ENTRY the behaviour of any
     acl_entry_t's previously obtained from the ACL by acl_create_entry() or acl_get_entry() is undefined.

RETURN VALUES

     The acl_create_entry() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to
     indicate the error.

ERRORS

     The acl_create_entry() and acl_create_entry_np() functions fail if:

     [EINVAL]		Argument acl_p does not point to a pointer to a valid ACL.

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

     [ERANGE]		The entry_index argument to acl_create_entry_np() is greater than the number of entries in the ACL.

SEE ALSO

     acl(3), acl_delete_entry(3), acl_get_entry(3), posix1e(3)

STANDARDS

     POSIX.1e is described in IEEE POSIX.1e draft 17.

AUTHORS

     Michael Smith
     Chris D Fulhaber

BSD
								  March 16, 2001							       BSD

Linux and UNIX Man Pages

acl_get_qualifier(3) [osx man page]

Check Out this Related Man Page