acl_set_permset_mask_np(3) [mojave man page]

ACL_PERMSET_MASK(3)					   BSD Library Functions Manual 				       ACL_PERMSET_MASK(3)

NAME

     acl_permset_mask -- Manipulate ACL permissions using bitmasks

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

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

     int
     acl_maximal_permset_mask_np(acl_permset_mask_t * mask_p);

     int
     acl_get_permset_mask_np(acl_entry_t entry_d, acl_permset_mask_t * mask_p);

     int
     acl_set_permset_mask_np(acl_entry_t entry_d, acl_permset_mask_t mask);

DESCRIPTION

     The acl_permset_mask_t functions are a Darwin extension to the POSIX.1e ACL standard which allow manipulation of permissions in an
     acl_entry_t using a bitmask of type acl_permset_mask_t rather than a constructed acl_permset_t (as done by acl_get_permset(3) and
     acl_set_permset(3)).

     acl_permset_mask_t values may be constructed using bitwise operations over acl_perm_t values.

     acl_maximal_permset_mask_np() sets the value pointed to by mask_p to a bitmask of all valid acl_perm_t values.

     acl_get_permset_mask_np() returns via mask_p a bitmask of permissions set on the ACL entry entry_d.

     acl_set_permset_mask_np() sets the permissions of ACL entry entry_d to match the permission bitmask provided by mask.

RETURN VALUES

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

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

     The acl_set_permset_mask_np() 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_get_permset_mask_np() function fails if:

     [EINVAL]		Argument entry_d is not a valid descriptor for an ACL entry.

     The acl_set_permset_mask_np() function fails if:

     [EINVAL]		Argument entry_d is not a valid descriptor for an ACL entry.

     [EINVAL]		Argument mask is not a valid bitmask of ACL permissions.

SEE ALSO

     acl(3), acl_add_perm(3), acl_clear_perms(3), acl_delete_perm(3), acl_get_permset(3), acl_set_permset(3), posix1e(3)

AUTHORS

     Jeremy Huddleston

Darwin								  August 24, 2010							    Darwin

ACL_SET_QUALIFIER(3)					   BSD Library Functions Manual 				      ACL_SET_QUALIFIER(3)

NAME

     acl_set_qualifier -- set the qualifier of an ACL entry

LIBRARY

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

SYNOPSIS

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

     int
     acl_set_qualifier(acl_entry_t entry_d, const void *qualifier_p);

DESCRIPTION

     The acl_set_qualifier() function sets the qualifier of the ACL entry indicated by the argument entry_d to the value referred to by the argu-
     ment qualifier_p.	If the value of the tag type in the ACL entry referred to by entry_d is ACL_USER, then the value referred to by
     qualifier_p shall be of type uid_t.  If the value of the tag type in the ACL entry referred to by entry_d is ACL_GROUP, then the value
     referred to by qualifier_p shall be of type gid_t.  If the value of the tag type in the ACL entry referred to by entry_d is a tag type for
     which a qualifier is not supported, acl_set_qualifier() returns an error.

     Any ACL entry descriptors that refer to the entry referred to by entry_d continue to refer to that entry. This function may cause memory to
     be allocated. The caller should free any releasable memory, when the ACL is no longer required, by calling acl_free() with a pointer to the
     ACL as argument.

RETURN VALUE

     The acl_set_qualifier() 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

     If any of the following conditions occur, the acl_set_qualifier() function returns -1 and sets errno to the corresponding value:

     [EINVAL]		The argument entry_d is not a valid descriptor for an ACL entry.

			The value of the tag type in the ACL entry referenced by the argument entry_d is neither ACL_USER nor ACL_GROUP.

			The value pointed to by the argument qualifier_p is not valid.

     [ENOMEM]		The acl_set_qualifier() function is unable to allocate the memory required for the ACL qualifier.

STANDARDS

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

SEE ALSO

     acl_create_entry(3), acl_free(3), acl_get_permset(3), acl_get_qualifier(3), acl_get_tag_type(3), acl_set_entry(3), acl_set_permset(3),
     acl_set_tag_type(3), acl(5)

AUTHOR

     Derived from the FreeBSD manual pages written by Robert N M Watson <rwatson@FreeBSD.org>, and adapted for Linux by Andreas Gruenbacher
     <a.gruenbacher@computer.org>.

Linux ACL							  March 23, 2002							 Linux ACL