make the UID_WRAPPER skip checks at runtime

This fixes two issues pointed out by Andrew. It adds a runtime
uwrap_enabled() call that wraps the skips needed for uid emulation. It
also makes the skip in the directory_create_or_exist() function only
change the uid checking code, not the permissions code

4 files changed, 17 insertions, 5 deletions

diff --git a/lib/uid_wrapper/uid_wrapper.c b/lib/uid_wrapper/uid_wrapper.c
index e009fa0b5c..948ff65b35 100644
--- a/lib/uid_wrapper/uid_wrapper.c
+++ b/lib/uid_wrapper/uid_wrapper.c
@@ -45,6 +45,13 @@ static void uwrap_init(void)
 	}
 }
 
+#undef uwrap_enabled
+_PUBLIC_ int uwrap_enabled(void)
+{
+	uwrap_init();
+	return uwrap.enabled?1:0;
+}
+
 _PUBLIC_ int uwrap_seteuid(uid_t euid)
 {
 	uwrap_init();
diff --git a/lib/uid_wrapper/uid_wrapper.h b/lib/uid_wrapper/uid_wrapper.h
index e2df613f50..5d7c99d2b2 100644
--- a/lib/uid_wrapper/uid_wrapper.h
+++ b/lib/uid_wrapper/uid_wrapper.h
@@ -58,4 +58,6 @@
 #endif
 #define getgid	uwrap_getgid
 
+int uwrap_enabled(void);
+
 #endif /* __UID_WRAPPER_H__ */
diff --git a/lib/util/config.mk b/lib/util/config.mk
index 47e026865e..6dc8354948 100644
--- a/lib/util/config.mk
+++ b/lib/util/config.mk
@@ -2,7 +2,7 @@
 PUBLIC_DEPENDENCIES = \
 		LIBTALLOC LIBCRYPTO \
 		SOCKET_WRAPPER LIBREPLACE_NETWORK \
-		CHARSET EXECINFO
+		CHARSET EXECINFO UID_WRAPPER
 
 LIBSAMBA-UTIL_VERSION = 0.0.1
 LIBSAMBA-UTIL_SOVERSION = 0
diff --git a/lib/util/util.c b/lib/util/util.c
index dea140148f..2a809d3ccb 100644
--- a/lib/util/util.c
+++ b/lib/util/util.c
@@ -133,14 +133,17 @@ _PUBLIC_ bool directory_create_or_exist(const char *dname, uid_t uid,
 			umask(old_umask);
 			return false;
 		}
-		if ((st.st_uid != uid) || 
-		    ((st.st_mode & 0777) != dir_perms)) {
-#ifndef UID_WRAPPER_REPLACE
+		if (st.st_uid != uid && !uwrap_enabled()) {
+			DEBUG(0, ("invalid ownership on directory "
+				  "%s\n", dname));
+			umask(old_umask);
+			return false;
+		}
+		if ((st.st_mode & 0777) != dir_perms) {
 			DEBUG(0, ("invalid permissions on directory "
 				  "%s\n", dname));
 			umask(old_umask);
 			return false;
-#endif
 		}
 	}
 	return true;