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FreeBSD 11.0 - man page for acl_set_tag_type (freebsd section 3)

ACL_SET_TAG_TYPE(3)					   BSD Library Functions Manual 				       ACL_SET_TAG_TYPE(3)

NAME
acl_set_tag_type -- set the tag type of an ACL entry
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/types.h> #include <sys/acl.h> int acl_set_tag_type(acl_entry_t entry_d, acl_tag_t tag_type);
DESCRIPTION
The acl_set_tag_type() function is a POSIX.1e call that sets the ACL tag type of ACL entry entry_d to the value of tag_type. Valid values are: ACL_USER_OBJ Permissions apply to file owner ACL_USER Permissions apply to additional user specified by qualifier ACL_GROUP_OBJ Permissions apply to file group ACL_GROUP Permissions apply to additional group specified by qualifier ACL_MASK Permissions specify mask ACL_OTHER Permissions apply to other ACL_OTHER_OBJ Same as ACL_OTHER ACL_EVERYONE Permissions apply to everyone@ Calling acl_set_tag_type() with tag_type equal to ACL_MASK, ACL_OTHER or ACL_OTHER_OBJ brands the ACL as POSIX.1e. Calling it with ACL_EVERYONE brands the ACL as NFSv4.
RETURN VALUES
The acl_set_tag_type() 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_set_tag_type() function fails if: [EINVAL] Argument entry_d is not a valid descriptor for an ACL entry. Argument tag_type is not a valid ACL tag type. ACL is already branded differently.
SEE ALSO
acl(3), acl_get_brand_np(3), acl_get_tag_type(3), posix1e(3)
STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17.
HISTORY
POSIX.1e support was introduced in FreeBSD 4.0. The acl_set_tag_type() function was added in FreeBSD 5.0.
AUTHORS
The acl_set_tag_type() function was written by Chris D. Faulhaber <jedgar@fxp.org>.
BSD
June 25, 2009 BSD