cast to resolve warning, check size of time_t, and check for null test case

configure.ac

@@ -66,6 +66,7 @@ AS_IF([ test -n "$CFLAG_VISIBILITY" ], [
 # checks to fail.
 AC_CHECK_SIZEOF([long long])
 AC_CHECK_SIZEOF([long])
+AC_CHECK_SIZEOF([time_t])
 AC_CHECK_TYPES([__uint128_t])
 AC_CHECK_FUNCS([gethostbyname getaddrinfo gettimeofday gmtime_r inet_ntoa memset socket])
 AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h netdb.h netinet/in.h stddef.h sys/ioctl.h sys/socket.h sys/time.h errno.h])

src/internal.c

@@ -4204,7 +4204,7 @@ int InitSSL_Suites(WOLFSSL* ssl)
     haveRSA = 1;
 #endif
 #ifndef NO_PSK
-    havePSK = ssl->options.havePSK;
+    havePSK = (byte)ssl->options.havePSK;
 #endif /* NO_PSK */
 #ifdef HAVE_ANON
     haveAnon = ssl->options.haveAnon;

tests/api.c

@@ -911,7 +911,7 @@ static int test_cm_load_ca_file(const char* ca_cert_file)
         if (ret == 0) {
             /* test loading DER */
             ret = wc_PemToDer(cert_buf, cert_sz, CA_TYPE, &pDer, NULL, NULL, NULL);
-            if (ret == 0) {
+            if (ret == 0 && pDer != NULL) {
                 ret = test_cm_load_ca_buffer(pDer->buffer, pDer->length,
                     WOLFSSL_FILETYPE_ASN1);
 

wolfcrypt/test/test.c

@@ -10117,7 +10117,8 @@ static int rsa_certgen_test(RsaKey* key, RsaKey* keypub, WC_RNG* rng, byte* tmp)
         fclose(file3);
     #endif /* USE_CERT_BUFFERS */
 
-    #ifndef NO_FILESYSTEM
+    #if !defined(NO_FILESYSTEM) && !defined(USE_CERT_BUFFERS_1024) && \
+        !defined(USE_CERT_BUFFERS_2048) && !defined(NO_ASN)
         ret = wc_SetAltNames(myCert, rsaCaCertFile);
         if (ret != 0) {
             ERROR_OUT(-6931, exit_rsa);

wolfssl/wolfcrypt/wc_port.h

@@ -478,6 +478,12 @@ WOLFSSL_API int wolfCrypt_Cleanup(void);
     #endif
 #endif
 
+#ifdef SIZEOF_TIME_T
+    #if SIZEOF_TIME_T < 8
+        #undef  TIME_T_NOT_LONG
+        #define TIME_T_NOT_LONG
+    #endif
+#endif
 
 /* Map default time functions */
 #if !defined(XTIME) && !defined(TIME_OVERRIDES) && !defined(USER_TIME)