Make sure first argument is an int when using %.*s to print e.g. chunks

src/libstrongswan/plugins/openssl/openssl_rsa_private_key.c

@@ -475,7 +475,8 @@ static bool login(ENGINE *engine, chunk_t keyid)
 	{
 		found = TRUE;
 		key = shared->get_key(shared);
-		if (snprintf(pin, sizeof(pin), "%.*s", key.len, key.ptr) >= sizeof(pin))
+		if (snprintf(pin, sizeof(pin),
+					 "%.*s", (int)key.len, key.ptr) >= sizeof(pin))
 		{
 			continue;
 		}

src/libstrongswan/plugins/pem/pem_builder.c

@@ -285,7 +285,7 @@ static status_t pem_to_bin(chunk_t *blob, bool *pgp)
 					else
 					{
 						DBG1(DBG_ASN, "  encryption algorithm '%.*s'"
-							 " not supported", dek.len, dek.ptr);
+							 " not supported", (int)dek.len, dek.ptr);
 						return NOT_SUPPORTED;
 					}
 					eat_whitespace(&value);

src/libstrongswan/plugins/pkcs11/pkcs11_creds.c

@@ -109,7 +109,8 @@ static void find_certificates(private_pkcs11_creds_t *this,
 		if (cert)
 		{
 			DBG1(DBG_CFG, "    loaded %strusted cert '%.*s'",
-				 entry->trusted ? "" : "un", entry->label.len, entry->label.ptr);
+				 entry->trusted ? "" : "un", (int)entry->label.len,
+				 entry->label.ptr);
 			/* trusted certificates are also returned as untrusted */
 			this->untrusted->insert_last(this->untrusted, cert);
 			if (entry->trusted)
@@ -120,7 +121,7 @@ static void find_certificates(private_pkcs11_creds_t *this,
 		else
 		{
 			DBG1(DBG_CFG, "    loading cert '%.*s' failed",
-				 entry->label.len, entry->label.ptr);
+				(int)entry->label.len, entry->label.ptr);
 		}
 		free(entry->value.ptr);
 		free(entry->label.ptr);

src/libstrongswan/plugins/x509/x509_pkcs10.c

@@ -334,7 +334,7 @@ static bool parse_challengePassword(private_x509_pkcs10_t *this, chunk_t blob, i
 		return FALSE;
 	}
 	DBG2(DBG_ASN, "L%d - challengePassword:", level);
-	DBG4(DBG_ASN, "  '%.*s'", blob.len, blob.ptr);
+	DBG4(DBG_ASN, "  '%.*s'", (int)blob.len, blob.ptr);
 	return TRUE;
 }