Add Subnet checking to tinc cli

[tinc] / src / subnet_parse.c

diff --git a/src/subnet_parse.c b/src/subnet_parse.c
index d5b84eb..8616baa 100644 (file)
--- a/src/subnet_parse.c
+++ b/src/subnet_parse.c
@@ -87,6 +87,17 @@ void maskcpy(void *va, const void *vb, int masklen, int len) {
        }
 }
 
+bool subnetcheck(const subnet_t subnet) {
+       if(((subnet.type == SUBNET_IPV4)
+                       && !maskcheck(&subnet.net.ipv4.address, subnet.net.ipv4.prefixlength, sizeof(subnet.net.ipv4.address)))
+                       || ((subnet.type == SUBNET_IPV6)
+                           && !maskcheck(&subnet.net.ipv6.address, subnet.net.ipv6.prefixlength, sizeof(subnet.net.ipv6.address)))) {
+               return false;
+       }
+
+       return true;
+}
+
 bool maskcheck(const void *va, int masklen, int len) {
        int i;
        const char *a = va;