table of contents
ACL_ADD_PERM(3) | Library Functions Manual | ACL_ADD_PERM(3) |
NAME¶
acl_add_perm — add a permission to an ACL permission setLIBRARY¶
Linux Access Control Lists library (libacl, -lacl).SYNOPSIS¶
#include <sys/types.h>#include <sys/acl.h> int
acl_add_perm(acl_permset_t permset_d, acl_perm_t perm);
DESCRIPTION¶
The acl_add_perm() function adds the permission contained in the argument perm 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.RETURN VALUE¶
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.ERRORS¶
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.
STANDARDS¶
IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned)SEE ALSO¶
acl_clear_perms(3), acl_delete_perm(3), acl_get_perm(3), acl_get_permset(3), acl_set_permset(3), acl(5)AUTHOR¶
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⟩.March 23, 2002 | Linux ACL |