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/*
File: acl_ea.h
(extended attribute representation of access control lists)
(C) 2002 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
#define ACL_EA_ACCESS "system.posix_acl_access"
#define ACL_EA_DEFAULT "system.posix_acl_default"
#define ACL_EA_VERSION 0x0002
typedef struct {
u_int16_t e_tag;
u_int16_t e_perm;
u_int32_t e_id;
} acl_ea_entry;
typedef struct {
u_int32_t a_version;
acl_ea_entry a_entries[0];
} acl_ea_header;
static inline size_t acl_ea_size(int count)
{
return sizeof(acl_ea_header) + count * sizeof(acl_ea_entry);
}
static inline int acl_ea_count(size_t size)
{
if (size < sizeof(acl_ea_header))
return -1;
size -= sizeof(acl_ea_header);
if (size % sizeof(acl_ea_entry))
return -1;
return size / sizeof(acl_ea_entry);
}
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