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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON |
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ACL_SET_QUALIFIER(3) BSD Library Functions Manual ACL_SET_QUALIFIER(3)
acl_set_qualifier — set the qualifier of an ACL entry
Linux Access Control Lists library (libacl, -lacl).
#include <sys/types.h>
#include <sys/acl.h>
int
acl_set_qualifier(acl_entry_t entry_d, const void *qualifier_p);
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 argument 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.
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.
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.
IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)
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)
Derived from the FreeBSD manual pages written by Robert N M Watson
<rwatson@FreeBSD.org>, and adapted for Linux by Andreas Gruenbacher
<andreas.gruenbacher@gmail.com>.
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 2022-12-17. (At that
time, the date of the most recent commit that was found in the
repository was 2022-12-10.) 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
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