lib/string/strdup/xstrndup.h: Add STRNDUP()

Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/lib/string/strdup/xstrndup.h b/lib/string/strdup/xstrndup.h
index d3279537aa02435b3636e10b899a935e8dd08da1..082ad3ff947f009d369b2128efb995be5790c37e 100644 (file)
--- a/lib/string/strdup/xstrndup.h
+++ b/lib/string/strdup/xstrndup.h
@@ -14,8 +14,11 @@
 #include "exit_if_null.h"
 
 
-// Similar to strndup(3), but ensure that 's' is an array, and exit on ENOMEM.
-#define XSTRNDUP(s)  exit_if_null(strndup(s, countof(s)))
+// Similar to strndup(3), but ensure that 's' is an array.
+#define STRNDUP(s)   strndup(s, countof(s))
+
+// exit-on-error nonstring duplicate-into-string
+#define XSTRNDUP(s)  exit_if_null(STRNDUP(s))
 
 
 #endif  // include guard