[PATCH] klibc: strlcpy/strlcat - don't alter destination if size == 0

klibc/klibc/strlcat.c

@@ -26,7 +26,8 @@ size_t strlcat(char *dst, const char *src, size_t size)
     bytes++;
   }
 
-  *q = '\0';
+  if (size)
+    *q = '\0';
   return bytes;
 }
 

klibc/klibc/strlcpy.c

@@ -19,7 +19,8 @@ size_t strlcpy(char *dst, const char *src, size_t size)
     bytes++;
   }
 
-  *q = '\0';
+  if (size)
+    *q = '\0';
   return bytes;
 }
 

udev_libc_wrapper.c

@@ -58,7 +58,8 @@ size_t strlcpy(char *dst, const char *src, size_t size)
 		bytes++;
 	}
 
-	*q = '\0';
+	if (size)
+		*q = '\0';
 	return bytes;
 }
 
@@ -82,7 +83,8 @@ size_t strlcat(char *dst, const char *src, size_t size)
 		bytes++;
 	}
 
-	*q = '\0';
+	if (size)
+		*q = '\0';
 	return bytes;
 }
 #endif /* __OWN_STRLCPYCAT__ */