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-rw-r--r--dhcpv4/utils.go14
1 files changed, 14 insertions, 0 deletions
diff --git a/dhcpv4/utils.go b/dhcpv4/utils.go
new file mode 100644
index 0000000..d95f586
--- /dev/null
+++ b/dhcpv4/utils.go
@@ -0,0 +1,14 @@
+package dhcpv4
+
+// IsRequested function takes a DHCPv4 message and an OptionCode, and returns
+// true if that option is within the requested options of the DHCPv6 message.
+func IsRequested(pkt *DHCPv4, requested OptionCode) bool {
+ for _, optprl := range pkt.GetOption(OptionParameterRequestList) {
+ for _, o := range optprl.(*OptParameterRequestList).RequestedOpts {
+ if o == requested {
+ return true
+ }
+ }
+ }
+ return false
+}