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Diffstat (limited to 'dhcpv4/option_bootfile_name.go')
-rw-r--r--dhcpv4/option_bootfile_name.go54
1 files changed, 54 insertions, 0 deletions
diff --git a/dhcpv4/option_bootfile_name.go b/dhcpv4/option_bootfile_name.go
new file mode 100644
index 0000000..73ea625
--- /dev/null
+++ b/dhcpv4/option_bootfile_name.go
@@ -0,0 +1,54 @@
+package dhcpv4
+
+import (
+ "fmt"
+)
+
+// This option implements the Bootfile name Option.
+// https://tools.ietf.org/html/rfc2132
+
+// OptBootfileName implements the BootFile Name option
+type OptBootfileName struct {
+ BootfileName []byte
+}
+
+// Code returns the option code
+func (op *OptBootfileName) Code() OptionCode {
+ return OptionBootfileName
+}
+
+// ToBytes serializes the option and returns it as a sequence of bytes
+func (op *OptBootfileName) ToBytes() []byte {
+ return append([]byte{byte(op.Code()), byte(op.Length())}, op.BootfileName...)
+}
+
+// Length returns the option length in bytes
+func (op *OptBootfileName) Length() int {
+ return len(op.BootfileName)
+}
+
+func (op *OptBootfileName) String() string {
+ return fmt.Sprintf("OptBootfileName{BootfileName=%s}", op.BootfileName)
+
+}
+
+// ParseOptBootfileName returns a new OptBootfile from a byte stream or error if any
+func ParseOptBootfileName(data []byte) (*OptBootfileName, error) {
+ if len(data) < 3 {
+ return nil, ErrShortByteStream
+ }
+ code := OptionCode(data[0])
+ if code != OptionBootfileName {
+ return nil, fmt.Errorf("ParseOptBootfileName: invalid code: %v; want %v", code, OptionBootfileName)
+ }
+ length := int(data[1])
+ if length < 1 {
+ return nil, fmt.Errorf("Bootfile name has invalid length of %d", length)
+ }
+ bootFileNameData := data[2:]
+ if len(bootFileNameData) < length {
+ return nil, fmt.Errorf("ParseOptBootfileName: short data: %d bytes; want %d",
+ len(bootFileNameData), length)
+ }
+ return &OptBootfileName{BootfileName: bootFileNameData[:length]}, nil
+}