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Diffstat (limited to 'winsup/cygwin/sec_acl.cc')
-rw-r--r--winsup/cygwin/sec_acl.cc13
1 files changed, 11 insertions, 2 deletions
diff --git a/winsup/cygwin/sec_acl.cc b/winsup/cygwin/sec_acl.cc
index a9e1dea..f632410 100644
--- a/winsup/cygwin/sec_acl.cc
+++ b/winsup/cygwin/sec_acl.cc
@@ -1019,8 +1019,17 @@ get_posix_access (PSECURITY_DESCRIPTOR psd,
{
mode_t perm;
- /* If we use the Windows user DB, utilize Authz to make sure all
- user permissions are correctly reflecting the Windows
+ /* Don't merge if the user already has all permissions, or... */
+ if (lacl[idx].a_perm == S_IRWXO)
+ continue;
+ /* ...if the sum of perms is less than or equal the user's perms. */
+ perm = lacl[idx].a_perm
+ | (has_class_perm ? class_perm : lacl[1].a_perm)
+ | lacl[2].a_perm;
+ if (perm == lacl[idx].a_perm)
+ continue;
+ /* Otherwise, if we use the Windows user DB, utilize Authz to make
+ sure all user permissions are correctly reflecting the Windows
permissions. */
if (cygheap->pg.nss_pwd_db ()
&& authz_get_user_attribute (&perm, psd, aclsid[idx]))