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[PULL,3/5] tests/unit: fix a -Wformat-truncation warning

Message ID 20220812114527.1336370-4-peter.maydell@linaro.org
State Accepted
Commit 6a54ac2a9737057dc19aa584d823a3011717423b
Headers show
Series [PULL,1/5] target/arm: Don't report Statistical Profiling Extension in ID registers | expand

Commit Message

Peter Maydell Aug. 12, 2022, 11:45 a.m. UTC 
From: Marc-André Lureau <marcandre.lureau@redhat.com>

../tests/test-qobject-input-visitor.c: In function ‘test_visitor_in_list’:
../tests/test-qobject-input-visitor.c:454:49: warning: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=]
  454 |         snprintf(string, sizeof(string), "string%d", i);
      |                                                 ^~
../tests/test-qobject-input-visitor.c:454:42: note: directive argument in the range [0, 2147483606]
  454 |         snprintf(string, sizeof(string), "string%d", i);
      |                                          ^~~~~~~~~~
../tests/test-qobject-input-visitor.c:454:9: note: ‘snprintf’ output between 8 and 17 bytes into a destination of size 12
  454 |         snprintf(string, sizeof(string), "string%d", i);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Rather than trying to be clever, since this is called 3 times during
tests, let's simply use g_strdup_printf().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20220810121513.1356081-1-marcandre.lureau@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: fixed commit message typos]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 tests/unit/test-qobject-input-visitor.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/tests/unit/test-qobject-input-visitor.c b/tests/unit/test-qobject-input-visitor.c
index 14329dabcfe..5f614afdbf1 100644
--- a/tests/unit/test-qobject-input-visitor.c
+++ b/tests/unit/test-qobject-input-visitor.c
@@ -447,9 +447,8 @@  static void test_visitor_in_list(TestInputVisitorData *data,
     g_assert(head != NULL);
 
     for (i = 0, item = head; item; item = item->next, i++) {
-        char string[12];
+        g_autofree char *string = g_strdup_printf("string%d", i);
 
-        snprintf(string, sizeof(string), "string%d", i);
         g_assert_cmpstr(item->value->string, ==, string);
         g_assert_cmpint(item->value->integer, ==, 42 + i);
     }