xfer: fix DCC file receive on Termux (closes #1811)

This fixes such error displayed on Termux when receiving a DCC file:

xfer: invalid address "96747949": error 8 hostname nor servname provided, or not known

1 files changed, 58 insertions, 0 deletions

diff --git a/tests/unit/plugins/xfer/test-xfer-network.cpp b/tests/unit/plugins/xfer/test-xfer-network.cpp
new file mode 100644
index 000000000..d9d3ae6f5
--- /dev/null
+++ b/tests/unit/plugins/xfer/test-xfer-network.cpp
@@ -0,0 +1,58 @@
+/*
+ * test-xfer-network.cpp - test xfer network functions
+ *
+ * Copyright (C) 2022 Sébastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "CppUTest/TestHarness.h"
+
+#include "tests/tests.h"
+
+extern "C"
+{
+#include "src/plugins/xfer/xfer-network.h"
+
+extern char *xfer_network_convert_integer_to_ipv4 (const char *str_address);
+}
+
+TEST_GROUP(XferNetwork)
+{
+};
+
+/*
+ * Tests functions:
+ *   xfer_network_convert_integer_to_ipv4
+ */
+
+TEST(XferNetwork, ConvertIntegerToIpv4)
+{
+    char *str;
+
+    POINTERS_EQUAL(NULL, xfer_network_convert_integer_to_ipv4 (NULL));
+    POINTERS_EQUAL(NULL, xfer_network_convert_integer_to_ipv4 (""));
+    POINTERS_EQUAL(NULL, xfer_network_convert_integer_to_ipv4 ("abc"));
+    POINTERS_EQUAL(NULL, xfer_network_convert_integer_to_ipv4 ("0"));
+    POINTERS_EQUAL(NULL, xfer_network_convert_integer_to_ipv4 ("-1"));
+
+    WEE_TEST_STR("0.0.0.1", xfer_network_convert_integer_to_ipv4 ("1"));
+    WEE_TEST_STR("0.0.1.0", xfer_network_convert_integer_to_ipv4 ("256"));
+    WEE_TEST_STR("0.1.0.0", xfer_network_convert_integer_to_ipv4 ("65536"));
+    WEE_TEST_STR("1.0.0.0", xfer_network_convert_integer_to_ipv4 ("16777216"));
+    WEE_TEST_STR("127.0.0.1", xfer_network_convert_integer_to_ipv4 ("2130706433"));
+    WEE_TEST_STR("192.168.1.2", xfer_network_convert_integer_to_ipv4 ("3232235778"));
+}