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authorDaniel Friesel <derf@finalrewind.org>2021-12-25 18:07:25 +0100
committerDaniel Friesel <derf@finalrewind.org>2021-12-25 18:08:53 +0100
commit16b712e0233cfd7b60668927067885f7e3551b92 (patch)
treeeccf0a9c9d3afd65864fee799265eb1f88384b0d /src/object/xdr16input.cc
parentd23e540ea2868cf9a511dad8eba105496542140e (diff)
rename os/object to object
Diffstat (limited to 'src/object/xdr16input.cc')
-rw-r--r--src/object/xdr16input.cc104
1 files changed, 104 insertions, 0 deletions
diff --git a/src/object/xdr16input.cc b/src/object/xdr16input.cc
new file mode 100644
index 0000000..2247c29
--- /dev/null
+++ b/src/object/xdr16input.cc
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2020 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include "object/xdr16input.h"
+
+uint16_t XDRInput::get_uint16()
+{
+ uint32_t ret = ((uint8_t)data[pos]<<8) | (uint8_t)data[pos+1];
+ pos += 2;
+ return ret;
+}
+
+int16_t XDRInput::get_int16()
+{
+ int32_t ret = (data[pos]<<8) | data[pos+1];
+ pos += 2;
+ return ret;
+}
+
+uint32_t XDRInput::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 XDRInput::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 XDRInput::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 XDRInput::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 XDRInput::get_float()
+{
+ union {
+ uint32_t i;
+ float f;
+ } v;
+ v.i = get_uint32();
+ return v.f;
+}
+
+double XDRInput::get_double()
+{
+ union {
+ uint64_t i;
+ double d;
+ } v;
+ v.i = get_uint64();
+ return v.d;
+}
+
+uint16_t XDRInput::get_opaque_length()
+{
+ return get_uint16();
+}
+
+char *XDRInput::get_opaque(uint16_t length)
+{
+ char *ret = data + pos;
+ pos += length;
+ if (length % 2) {
+ pos += 2 - (length % 2);
+ }
+ return ret;
+}
+
+void XDRInput::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);
+ }
+}