[pseudo][PATCH v2 15/23] pseudo.h: Avoid accessing unallocated memory

From: Richard Purdie <[email protected]>

We can call STARTSWITH in cases where the item being searched for is longer
than the string itself. Switch from memcmp to strncmp to avoid accessing
unassigned memory.

Signed-off-by: Richard Purdie <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Mark Hatle <[email protected]>
---
 pseudo.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pseudo.h b/pseudo.h
index 66aa70e..ae1fe0d 100644
--- a/pseudo.h
+++ b/pseudo.h
@@ -119,7 +119,7 @@ extern char *pseudo_version;
  #define PSEUDO_LIBDIR "lib"
 #endif
 
-#define STARTSWITH(x, y) (!memcmp((x), (y), sizeof(y) - 1))
+#define STARTSWITH(x, y) (strncmp(y, x, strlen(y)) == 0)
 
 #ifndef PSEUDO_LOCALSTATEDIR
  #define PSEUDO_LOCALSTATEDIR "var/pseudo"
-- 
1.8.3.1