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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON |
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ACL_SET_QUALIFIER(3) Library Functions Manual ACL_SET_QUALIFIER(3)
acl_set_qualifier — set the qualifier of an ACL entry
Linux Access Control Lists library (libacl, -lacl).
<sys/types.h> <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 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-04-25.) 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 ACL_SET_QUALIFIER(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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