120 lines
3.0 KiB
Go
120 lines
3.0 KiB
Go
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package mangler
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import (
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"net"
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"net/netip"
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"net/url"
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"reflect"
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"time"
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_ "unsafe"
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)
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func init() {
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// Register standard library performant manglers.
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Register(reflect.TypeOf(net.IPAddr{}), mangle_ipaddr)
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Register(reflect.TypeOf(&net.IPAddr{}), mangle_ipaddr_ptr)
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Register(reflect.TypeOf(netip.Addr{}), mangle_addr)
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Register(reflect.TypeOf(&netip.Addr{}), mangle_addr_ptr)
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Register(reflect.TypeOf(netip.AddrPort{}), mangle_addrport)
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Register(reflect.TypeOf(&netip.AddrPort{}), mangle_addrport_ptr)
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Register(reflect.TypeOf(time.Time{}), mangle_time)
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Register(reflect.TypeOf(&time.Time{}), mangle_time_ptr)
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Register(reflect.TypeOf(url.URL{}), mangle_url)
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Register(reflect.TypeOf(&url.URL{}), mangle_url_ptr)
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}
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//go:linkname time_sec time.(*Time).sec
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func time_sec(*time.Time) int64
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//go:linkname time_nsec time.(*Time).nsec
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func time_nsec(*time.Time) int32
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//go:linkname time_stripMono time.(*Time).stripMono
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func time_stripMono(*time.Time)
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func mangle_url(buf []byte, a any) []byte {
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u := (*url.URL)(iface_value(a))
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return append(buf, u.String()...)
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}
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func mangle_url_ptr(buf []byte, a any) []byte {
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if ptr := (*url.URL)(iface_value(a)); ptr != nil {
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s := ptr.String()
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buf = append(buf, '1')
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return append(buf, s...)
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}
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buf = append(buf, '0')
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return buf
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}
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func mangle_time(buf []byte, a any) []byte {
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t := *(*time.Time)(iface_value(a))
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time_stripMono(&t) // force non-monotonic time value.
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buf = append_uint64(buf, uint64(time_sec(&t)))
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buf = append_uint32(buf, uint32(time_nsec(&t)))
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return buf
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}
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func mangle_time_ptr(buf []byte, a any) []byte {
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if ptr := (*time.Time)(iface_value(a)); ptr != nil {
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t := *ptr
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buf = append(buf, '1')
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time_stripMono(&t) // force non-monotonic time value.
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buf = append_uint64(buf, uint64(time_sec(&t)))
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buf = append_uint32(buf, uint32(time_nsec(&t)))
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return buf
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}
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buf = append(buf, '0')
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return buf
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}
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func mangle_ipaddr(buf []byte, a any) []byte {
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i := *(*net.IPAddr)(iface_value(a))
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buf = append(buf, i.IP...)
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buf = append(buf, i.Zone...)
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return buf
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}
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func mangle_ipaddr_ptr(buf []byte, a any) []byte {
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if ptr := (*net.IPAddr)(iface_value(a)); ptr != nil {
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buf = append(buf, '1')
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buf = append(buf, ptr.IP...)
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buf = append(buf, ptr.Zone...)
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return buf
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}
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buf = append(buf, '0')
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return buf
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}
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func mangle_addr(buf []byte, a any) []byte {
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i := (*netip.Addr)(iface_value(a))
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b, _ := i.MarshalBinary()
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return append(buf, b...)
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}
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func mangle_addr_ptr(buf []byte, a any) []byte {
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if ptr := (*netip.Addr)(iface_value(a)); ptr != nil {
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buf = append(buf, '1')
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b, _ := ptr.MarshalBinary()
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return append(buf, b...)
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}
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buf = append(buf, '0')
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return buf
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}
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func mangle_addrport(buf []byte, a any) []byte {
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i := (*netip.AddrPort)(iface_value(a))
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b, _ := i.MarshalBinary()
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return append(buf, b...)
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}
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func mangle_addrport_ptr(buf []byte, a any) []byte {
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if ptr := (*netip.AddrPort)(iface_value(a)); ptr != nil {
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buf = append(buf, '1')
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b, _ := ptr.MarshalBinary()
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return append(buf, b...)
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}
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buf = append(buf, '0')
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return buf
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}
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