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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 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.
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() 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.
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
<a.gruenbacher@bestbits.at>.
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 2018-02-02. (At that time,
the date of the most recent commit that was found in the repository was
2018-01-21.) If you discover any rendering problems in this HTML ver‐
sion 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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