NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON

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

NAME         top

     acl_set_qualifier — set the qualifier of an ACL entry

LIBRARY         top

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

SYNOPSIS         top

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

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

DESCRIPTION         top

     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         top

     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         top

     If any of the following conditions occur, the acl_set_qualifier() func‐
     tion 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 refer‐
                        enced 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 allo‐
                        cate the memory required for the ACL qualifier.

STANDARDS         top

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

SEE ALSO         top

     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         top

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

COLOPHON         top

     This page is part of the acl (manipulating access control lists)
     project.  Information about the project can be found at
     http://savannah.nongnu.org/projects/acl.  If you have a bug report for
     this manual page, see http://savannah.nongnu.org/bugs/?group=acl.  This
     page was obtained from the project's upstream Git repository
     git://git.savannah.nongnu.org/acl.git on 2017-05-03.  If you discover
     any rendering problems in this HTML version of the page, or you believe
     there is a better or more up-to-date source for the page, or you have
     corrections or improvements to the information in this COLOPHON (which
     is not part of the original manual page), send a mail to
     man-pages@man7.org

Linux ACL                      March 23, 2002                      Linux ACL