Fix: illegal memory access in test_create_kernel_event

Found by Coverity:
CID 1243030 (#1 of 1): Buffer not null terminated (BUFFER_SIZE_WARNING)1.
buffer_size_warning: Calling strncpy with a maximum size argument of 256
bytes on destination array ev.name of size 256 bytes might leave the
destination string unterminated.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/tests/unit/test_kernel_data.c b/tests/unit/test_kernel_data.c
index ca53c7d4853195d67aac1bd0ea673b640fb47f6a..b578740bf89f092094f43a16e15e4d1bbf5fd836 100644 (file)
--- a/tests/unit/test_kernel_data.c
+++ b/tests/unit/test_kernel_data.c
@@ -33,7 +33,7 @@
 #define RANDOM_STRING_LEN      11
 
 /* Number of TAP tests in this file */
-#define NUM_TESTS 10
+#define NUM_TESTS 11
 
 /* For error.h */
 int lttng_opt_quiet = 1;
@@ -135,7 +135,9 @@ static void test_create_kernel_event(void)
        struct lttng_event ev;
 
        memset(&ev, 0, sizeof(ev));
-       strncpy(ev.name, get_random_string(), LTTNG_KERNEL_SYM_NAME_LEN);
+       ok(lttng_strncpy(ev.name, get_random_string(),
+                       LTTNG_KERNEL_SYM_NAME_LEN),
+               "Validate string length");
        ev.type = LTTNG_EVENT_TRACEPOINT;
        ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;