Add tests for trace_api.

Fixes openssl#17422

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19096)

(cherry picked from commit fcff5bd43c85418cc4aa8052e3dc3dba344d763e)

1 files changed, 14 insertions, 0 deletions

diff --git a/crypto/trace.c b/crypto/trace.c
index d790409a2d..ec6c8f5e29 100644
--- a/crypto/trace.c
+++ b/crypto/trace.c
@@ -145,9 +145,19 @@ const char *OSSL_trace_get_category_name(int num)
 {
     size_t i;
 
+    /*
+     * Partial check that OSSL_TRACE_CATEGORY_... macros
+     * are synced with trace_categories array
+     */
+#ifndef OPENSSL_NO_ENGINE
+    if (!ossl_assert(OSSL_TRACE_CATEGORY_NUM == OSSL_NELEM(trace_categories)))
+        return NULL;
+#endif
+
     for (i = 0; i < OSSL_NELEM(trace_categories); i++)
         if (trace_categories[i].num == num)
             return trace_categories[i].name;
+
     return NULL; /* not found */
 }
 
@@ -155,9 +165,13 @@ int OSSL_trace_get_category_num(const char *name)
 {
     size_t i;
 
+    if (name == NULL)
+        return -1;
+
     for (i = 0; i < OSSL_NELEM(trace_categories); i++)
         if (OPENSSL_strcasecmp(name, trace_categories[i].name) == 0)
             return trace_categories[i].num;
+
     return -1; /* not found */
 }