lib/in46a: Introduce in46a_netmasklen API
Change-Id: I06e3e038afd8f7afaec2a3fa67b1616500c8db80
diff --git a/tests/lib/in46a_test.c b/tests/lib/in46a_test.c
index d6215e7..42a1768 100644
--- a/tests/lib/in46a_test.c
+++ b/tests/lib/in46a_test.c
@@ -246,6 +246,64 @@
OSMO_ASSERT(!memcmp(&ia.v6, v6_spec+2, ia.len));
}
+static void test_in46a_netmasklen(void)
+{
+ struct in46_addr netmask;
+ unsigned int len;
+
+ printf("Testing in46a_netmasklen() with IPv4 addresses\n");
+ netmask.len = 4;
+
+ netmask.v4.s_addr = 0xffffffff;
+ len = in46a_netmasklen(&netmask);
+ OSMO_ASSERT(len == 32);
+
+ netmask.v4.s_addr = 0x00ffffff;
+ len = in46a_netmasklen(&netmask);
+ OSMO_ASSERT(len == 24);
+
+ netmask.v4.s_addr = 0x00f0ffff;
+ len = in46a_netmasklen(&netmask);
+ OSMO_ASSERT(len == 20);
+
+ netmask.v4.s_addr = 0x000000fe;
+ len = in46a_netmasklen(&netmask);
+ OSMO_ASSERT(len == 7);
+
+ netmask.v4.s_addr = 0x00000000;
+ len = in46a_netmasklen(&netmask);
+ OSMO_ASSERT(len == 0);
+
+ printf("Testing in46a_netmasklen() with IPv6 addresses\n");
+ const struct in46_addr netmaskA = {
+ .len = 16,
+ .v6.s6_addr = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff},
+ };
+ len = in46a_netmasklen(&netmaskA);
+ OSMO_ASSERT(len == 128);
+
+ const struct in46_addr netmaskB = {
+ .len = 16,
+ .v6.s6_addr = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00},
+ };
+ len = in46a_netmasklen(&netmaskB);
+ OSMO_ASSERT(len == 104);
+
+ const struct in46_addr netmaskC = {
+ .len = 16,
+ .v6.s6_addr = {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x00,0x00,0x00},
+ };
+ len = in46a_netmasklen(&netmaskC);
+ OSMO_ASSERT(len == 103);
+
+ const struct in46_addr netmaskD = {
+ .len = 16,
+ .v6.s6_addr = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
+ };
+ len = in46a_netmasklen(&netmaskD);
+ OSMO_ASSERT(len == 0);
+}
+
int main(int argc, char **argv)
{
osmo_init_logging(&log_info);
@@ -262,4 +320,5 @@
test_in46a_within_mask();
test_in46a_to_eua();
test_in46a_from_eua();
+ test_in46a_netmasklen();
}