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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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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | SEE ALSO | AUTHOR | COLOPHON |
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ACL_ADD_PERM(3) Library Functions Manual ACL_ADD_PERM(3)
acl_add_perm — add a permission to an ACL permission set
Linux Access Control Lists library (libacl, -lacl).
<sys/types.h> <sys/acl.h> int acl_add_perm(acl_permset_t
permset_d, acl_perm_t perm)
The acl_add_perm() function adds the permission contained in the
argument perm (one of ACL_READ, ACL_WRITE, ACL_EXECUTE) to the
permission set referred to by the argument permset_d. An attempt
to add a permission that is already contained in the permission
set is not considered an error.
Any existing descriptors that refer to permset_d continue to
refer to that permission set.
The acl_add_perm() 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_add_perm()
function returns -1 and sets errno to the corresponding value:
[EINVAL] The argument permset_d is not a valid
descriptor for a permission set within an ACL
entry.
The argument perm does not contain a valid
acl_perm_t value.
IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)
acl_clear_perms(3), acl_delete_perm(3), acl_get_perm(3),
acl_get_permset(3), acl_set_permset(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_ADD_PERM(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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