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-rw-r--r--src/lib/xdr.cc187
-rw-r--r--src/lib/xdr16.cc214
2 files changed, 401 insertions, 0 deletions
diff --git a/src/lib/xdr.cc b/src/lib/xdr.cc
new file mode 100644
index 0000000..180bff0
--- /dev/null
+++ b/src/lib/xdr.cc
@@ -0,0 +1,187 @@
+#include "lib/xdr.h"
+
+
+void XDRWriter::put(uint32_t number)
+{
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 4;
+}
+
+void XDRWriter::put(int32_t number)
+{
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 4;
+}
+
+void XDRWriter::put(uint64_t number)
+{
+ *buffer++ = ((number >> 56) & 0xffU);
+ *buffer++ = ((number >> 48) & 0xffU);
+ *buffer++ = ((number >> 40) & 0xffU);
+ *buffer++ = ((number >> 32) & 0xffU);
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 8;
+}
+
+void XDRWriter::put(int64_t number)
+{
+ *buffer++ = ((number >> 56) & 0xffU);
+ *buffer++ = ((number >> 48) & 0xffU);
+ *buffer++ = ((number >> 40) & 0xffU);
+ *buffer++ = ((number >> 32) & 0xffU);
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 8;
+}
+
+void XDRWriter::put(float number)
+{
+ union {
+ uint32_t i;
+ float f;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.f = number;
+ put(v.i);
+}
+
+void XDRWriter::put(double number)
+{
+ union {
+ uint64_t i;
+ double d;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.d = number;
+ put(v.i);
+}
+
+void XDRWriter::put(char const *data){
+ if (!is_fixed_length) {
+ put(next_array_len);
+ }
+ uint32_t i;
+ for (i = 0; i < next_array_len; i++) {
+ *buffer++ = data[i];
+ }
+ while ((i++) % 4 != 0){
+ *buffer++ = 0;
+ }
+ pos += i;
+}
+
+template<uint32_t TSize>
+void XDRWriter::put(char const (&data)[TSize]){
+ if (!is_fixed_length) {
+ put(TSize);
+ }
+ uint32_t i;
+ for (i = 0; i < TSize; i++) {
+ *buffer++ = data[i];
+ }
+ while ((i++) % 4 != 0){
+ *buffer++ = 0;
+ }
+ pos += i;
+}
+
+uint32_t XDRReader::get_uint32()
+{
+ uint32_t ret = ((uint8_t)data[pos]<<24) | ((uint8_t)data[pos+1]<<16)
+ | ((uint8_t)data[pos+2]<<8) | (uint8_t)data[pos+3];
+ pos += 4;
+ return ret;
+}
+
+int32_t XDRReader::get_int32()
+{
+ int32_t ret = (data[pos]<<24) | (data[pos+1]<<16) | (data[pos+2]<<8) | data[pos+3];
+ pos += 4;
+ return ret;
+}
+
+uint64_t XDRReader::get_uint64()
+{
+ uint64_t ret0 = ((uint8_t)data[pos]<<24) | ((uint8_t)data[pos+1]<<16)
+ | ((uint8_t)data[pos+2]<<8) | (uint8_t)data[pos+3];
+ pos += 4;
+ uint64_t ret1 = ((uint8_t)data[pos]<<24) | ((uint8_t)data[pos+1]<<16)
+ | ((uint8_t)data[pos+2]<<8) | (uint8_t)data[pos+3];
+ pos += 4;
+ return (ret0 << 32) | ret1;
+}
+
+int64_t XDRReader::get_int64()
+{
+ int64_t ret0 = (data[pos]<<24) | (data[pos+1]<<16) | (data[pos+2]<<8) | data[pos+3];
+ pos += 4;
+ int64_t ret1 = (data[pos]<<24) | (data[pos+1]<<16) | (data[pos+2]<<8) | data[pos+3];
+ pos += 4;
+ return (ret0 << 32) | ret1;
+}
+
+float XDRReader::get_float()
+{
+ union {
+ uint32_t i;
+ float f;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.i = get_uint32();
+ return v.f;
+}
+
+double XDRReader::get_double()
+{
+ union {
+ uint64_t i;
+ double d;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.i = get_uint64();
+ return v.d;
+}
+
+uint32_t XDRReader::get_opaque_length()
+{
+ return get_uint32();
+}
+
+char *XDRReader::get_opaque(uint32_t length)
+{
+ char *ret = data + pos;
+ pos += length;
+ if (length % 4) {
+ pos += 4 - (length % 4);
+ }
+ return ret;
+}
+
+void XDRReader::get_string(char* target)
+{
+ uint16_t length = get_opaque_length();
+ uint16_t i;
+ for (i = 0; i < length; i++) {
+ target[i] = data[pos + i];
+ }
+ target[i] = 0;
+ pos += length;
+ if (length % 4) {
+ pos += 4 - (length % 4);
+ }
+}
diff --git a/src/lib/xdr16.cc b/src/lib/xdr16.cc
new file mode 100644
index 0000000..2f68463
--- /dev/null
+++ b/src/lib/xdr16.cc
@@ -0,0 +1,214 @@
+#include "lib/xdr16.h"
+
+void XDRWriter::put(uint16_t number)
+{
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 2;
+}
+
+void XDRWriter::put(int16_t number)
+{
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 2;
+}
+
+void XDRWriter::put(uint32_t number)
+{
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 4;
+}
+
+void XDRWriter::put(int32_t number)
+{
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 4;
+}
+
+void XDRWriter::put(uint64_t number)
+{
+ *buffer++ = ((number >> 56) & 0xffU);
+ *buffer++ = ((number >> 48) & 0xffU);
+ *buffer++ = ((number >> 40) & 0xffU);
+ *buffer++ = ((number >> 32) & 0xffU);
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 8;
+}
+
+void XDRWriter::put(int64_t number)
+{
+ *buffer++ = ((number >> 56) & 0xffU);
+ *buffer++ = ((number >> 48) & 0xffU);
+ *buffer++ = ((number >> 40) & 0xffU);
+ *buffer++ = ((number >> 32) & 0xffU);
+ *buffer++ = ((number >> 24) & 0xffU);
+ *buffer++ = ((number >> 16) & 0xffU);
+ *buffer++ = ((number >> 8) & 0xffU);
+ *buffer++ = (number & 0xffU);
+ pos += 8;
+}
+
+void XDRWriter::put(float number)
+{
+ union {
+ uint32_t i;
+ float f;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.f = number;
+ put(v.i);
+}
+
+void XDRWriter::put(double number)
+{
+ union {
+ uint64_t i;
+ double d;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.d = number;
+ put(v.i);
+}
+
+void XDRWriter::put(char const *data){
+ if (!is_fixed_length) {
+ put(next_array_len);
+ }
+ uint16_t i;
+ for (i = 0; i < next_array_len; i++) {
+ *buffer++ = data[i];
+ }
+ while ((i++) % 2 != 0){
+ *buffer++ = 0;
+ }
+ pos += i;
+}
+
+template<uint16_t TSize>
+void XDRWriter::put(char const (&data)[TSize]){
+ if (!is_fixed_length) {
+ put(TSize);
+ }
+ uint16_t i;
+ for (i = 0; i < TSize; i++) {
+ *buffer++ = data[i];
+ }
+ while ((i++) % 2 != 0){
+ *buffer++ = 0;
+ }
+ pos += i;
+}
+
+uint16_t XDRReader::get_uint16()
+{
+ uint16_t ret = ((uint8_t)data[pos]<<8) | (uint8_t)data[pos+1];
+ pos += 2;
+ return ret;
+}
+
+int16_t XDRReader::get_int16()
+{
+ int16_t ret = (data[pos]<<8) | data[pos+1];
+ pos += 2;
+ return ret;
+}
+
+uint32_t XDRReader::get_uint32()
+{
+ uint32_t ret = ((uint8_t)data[pos]<<24) | ((uint8_t)data[pos+1]<<16)
+ | ((uint8_t)data[pos+2]<<8) | (uint8_t)data[pos+3];
+ pos += 4;
+ return ret;
+}
+
+int32_t XDRReader::get_int32()
+{
+ int32_t ret = (data[pos]<<24) | (data[pos+1]<<16) | (data[pos+2]<<8) | data[pos+3];
+ pos += 4;
+ return ret;
+}
+
+uint64_t XDRReader::get_uint64()
+{
+ uint64_t ret0 = ((uint8_t)data[pos]<<24) | ((uint8_t)data[pos+1]<<16)
+ | ((uint8_t)data[pos+2]<<8) | (uint8_t)data[pos+3];
+ pos += 4;
+ uint64_t ret1 = ((uint8_t)data[pos]<<24) | ((uint8_t)data[pos+1]<<16)
+ | ((uint8_t)data[pos+2]<<8) | (uint8_t)data[pos+3];
+ pos += 4;
+ return (ret0 << 32) | ret1;
+}
+
+int64_t XDRReader::get_int64()
+{
+ int64_t ret0 = (data[pos]<<24) | (data[pos+1]<<16) | (data[pos+2]<<8) | data[pos+3];
+ pos += 4;
+ int64_t ret1 = (data[pos]<<24) | (data[pos+1]<<16) | (data[pos+2]<<8) | data[pos+3];
+ pos += 4;
+ return (ret0 << 32) | ret1;
+}
+
+float XDRReader::get_float()
+{
+ union {
+ uint32_t i;
+ float f;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.i = get_uint32();
+ return v.f;
+}
+
+double XDRReader::get_double()
+{
+ union {
+ uint64_t i;
+ double d;
+ } v;
+ // Setting one member of a struct and then reading another is undefined
+ // behaviour, but works as intended in nearly any (embedded) compiler
+ v.i = get_uint64();
+ return v.d;
+}
+
+uint32_t XDRReader::get_opaque_length()
+{
+ return get_uint16();
+}
+
+char *XDRReader::get_opaque(uint32_t length)
+{
+ char *ret = data + pos;
+ pos += length;
+ if (length % 2) {
+ pos += 2 - (length % 2);
+ }
+ return ret;
+}
+
+void XDRReader::get_string(char* target)
+{
+ uint16_t length = get_opaque_length();
+ uint16_t i;
+ for (i = 0; i < length; i++) {
+ target[i] = data[pos + i];
+ }
+ target[i] = 0;
+ pos += length;
+ if (length % 2) {
+ pos += 2 - (length % 2);
+ }
+}
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