Allow an empty NPN/ALPN protocol list in the tests

Allow ourselves to configure an empty NPN/ALPN protocol list and test what happens if we do. Follow on from CVE-2024-5535 (cherry picked from commit 72394c9a1a6a6b07edf43eb2ad7e95e1093ada1b)
Tongsuo-Project · Jul 15, 2024 · e50a6b6 · e50a6b6
1 parent 7f4500f
commit e50a6b6
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Showing 5 changed files with 449 additions and 244 deletions.
diff --git a/test/helpers/handshake.c b/test/helpers/handshake.c
@@ -349,6 +349,12 @@ static int parse_protos(const char *protos, unsigned char **out, size_t *outlen)
 
     len = strlen(protos);
 
+    if (len == 0) {
+        *out = NULL;
+        *outlen = 0;
+        return 1;
+    }
+
     /* Should never have reuse. */
     if (!TEST_ptr_null(*out)
             /* Test values are small, so we omit length limit checks. */