From a1bbc3b6f2707fa808d19ad0baa035c3bac3f641 Mon Sep 17 00:00:00 2001 From: Daniel Friesel Date: Mon, 15 Oct 2018 16:30:58 +0200 Subject: add preliminary xdr input driver --- src/os/object/xdrinput.cc | 51 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 src/os/object/xdrinput.cc (limited to 'src') diff --git a/src/os/object/xdrinput.cc b/src/os/object/xdrinput.cc new file mode 100644 index 0000000..561c779 --- /dev/null +++ b/src/os/object/xdrinput.cc @@ -0,0 +1,51 @@ +#include "object/xdrinput.h" + +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; +} + +uint32_t XDRInput::get_opaque_length() +{ + return get_uint32(); +} + +char *XDRInput::get_opaque(uint32_t length) +{ + char *ret = data + pos; + pos += length; + if (length % 4) { + pos += 4 - (length % 4); + } + return ret; +} -- cgit v1.2.3