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acl_set_qualifier(3) [osx man page]

ACL_SET_QUALIFIER(3)					   BSD Library Functions Manual 				      ACL_SET_QUALIFIER(3)

acl_set_qualifier -- set ACL tag qualifier LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <sys/types.h> #include <sys/acl.h> int acl_set_qualifier(acl_entry_t entry_d, const void *tag_qualifier_p); DESCRIPTION
The acl_set_qualifier() function is a POSIX.1e call that sets the qualifier of the tag for the ACL entry entry_d to the value referred to by tag_qualifier_p. The tag type of the ACL entry, as previously set with acl_set_tag_type(3), must be either ACL_EXTENDED_ALLOW or ACL_EXTENDED_DENY, and tag_qualifier_p should be a pointer to a global unique identifier (of type guid_t). RETURN VALUES
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. ERRORS
The acl_set_qualifier() function fails if: [EINVAL] Argument entry_d is not a valid descriptor for an ACL entry. The tag type of the ACL entry entry_d is not ACL_EXTENDED_ALLOW or ACL_EXTENDED_DENY. The value pointed to by tag_qualifier_p is not valid. [ENOMEM] The value to be returned requires more memory than is allowed by the hardware or system-imposed memory management con- straints. SEE ALSO
acl(3), acl_get_qualifier(3), acl_set_tag_type(3), posix1e(3) STANDARDS
POSIX.1e is described in IEEE POSIX.1e draft 17. AUTHORS
Michael Smith Chris D. Faulhaber BSD
Sept 2, 2008 BSD

Check Out this Related Man Page

acl_set_qualifier(3)					     Library Functions Manual					      acl_set_qualifier(3)

acl_set_qualifier - Sets the tag qualifier (UID or GID) on an ACL entry LIBRARY
Security Library (libpacl.a) SYNOPSIS
#include <sys/acl.h> int acl_set_qualifier( acl_entry_t entry_d; void *tag_qualifier_p); PARAMETERS
Designates the working storage internal representation ACL entry to set the tag qualifier in. Designates the uid or gid to set the tag qualifier to. DESCRIPTION
NOTE: This function is based on Draft 13 of the POSIX P1003.6 standard. Given an ACL entry, the acl_set_qualifier() function sets the id in the ACL entry. If the tag type of the given ACL entry is ACL_USER then tag_qualifier_p is evaluated as a pointer of type *uid_t. If the tag type of the given ACL entry is ACL_GROUP then tag_qualifier_p is evaluated as a pointer of type *gid_t. Any other ACL tag type results in an error. RETURN VALUES
Upon successful completion, the acl_set_qualifier() function returns a value of 0 (zero). Otherwise, a value of -1 is returned and errno is set to indicate the error. ERRORS
If any of the following conditions occur, the acl_set_qualifier() function sets errno to the corresponding value: Argument entry_d does not refer to a valid ACL entry. The value of the tag type in ACL entry referred to by entry_d is ACL_USER_OBJ, ACL_GROUP_OBJ, or ACL_OTHER_OBJ. The value of the entry in tag_qualifier_p is not valid. There is not enough memory available to allocate the ACL uid/gid storage. RELATED INFORMATION
acl_free_qualifier(3), acl_get_qualifier(3) Security delim off acl_set_qualifier(3)
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