aboutsummaryrefslogtreecommitdiffstats
path: root/src/codec/hex/hex.cpp
diff options
context:
space:
mode:
authorlloyd <[email protected]>2009-11-17 07:19:37 +0000
committerlloyd <[email protected]>2009-11-17 07:19:37 +0000
commite00b46cf9c1dcb364ebb7d5968d6ff9dcd600c4e (patch)
tree8ffb8d032f06bbcb7ab376c7469751a25b556dca /src/codec/hex/hex.cpp
parenta98a9ff5f95bd4dca9c1eda11e27e712c869cd66 (diff)
Move most code that relies heavily on Filters into src/filters.
Remove support for (unused) modset settings. Move tss, fpe, cryptobox, and aont to new dir constructs
Diffstat (limited to 'src/codec/hex/hex.cpp')
-rw-r--r--src/codec/hex/hex.cpp193
1 files changed, 0 insertions, 193 deletions
diff --git a/src/codec/hex/hex.cpp b/src/codec/hex/hex.cpp
deleted file mode 100644
index 651899b73..000000000
--- a/src/codec/hex/hex.cpp
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
-* Hex Encoder/Decoder
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/hex.h>
-#include <botan/parsing.h>
-#include <botan/charset.h>
-#include <botan/exceptn.h>
-#include <algorithm>
-
-namespace Botan {
-
-const u32bit HEX_CODEC_BUFFER_SIZE = 256;
-
-/*
-* Hex_Encoder Constructor
-*/
-Hex_Encoder::Hex_Encoder(bool breaks, u32bit length, Case c) :
- casing(c), line_length(breaks ? length : 0)
- {
- in.resize(HEX_CODEC_BUFFER_SIZE);
- out.resize(2*in.size());
- counter = position = 0;
- }
-
-/*
-* Hex_Encoder Constructor
-*/
-Hex_Encoder::Hex_Encoder(Case c) : casing(c), line_length(0)
- {
- in.resize(HEX_CODEC_BUFFER_SIZE);
- out.resize(2*in.size());
- counter = position = 0;
- }
-
-/*
-* Hex Encoding Operation
-*/
-void Hex_Encoder::encode(byte in, byte out[2], Hex_Encoder::Case casing)
- {
- const byte* BIN_TO_HEX = ((casing == Uppercase) ? BIN_TO_HEX_UPPER :
- BIN_TO_HEX_LOWER);
-
- out[0] = BIN_TO_HEX[((in >> 4) & 0x0F)];
- out[1] = BIN_TO_HEX[((in ) & 0x0F)];
- }
-
-/*
-* Encode and send a block
-*/
-void Hex_Encoder::encode_and_send(const byte block[], u32bit length)
- {
- for(u32bit j = 0; j != length; ++j)
- encode(block[j], out + 2*j, casing);
-
- if(line_length == 0)
- send(out, 2*length);
- else
- {
- u32bit remaining = 2*length, offset = 0;
- while(remaining)
- {
- u32bit sent = std::min(line_length - counter, remaining);
- send(out + offset, sent);
- counter += sent;
- remaining -= sent;
- offset += sent;
- if(counter == line_length)
- {
- send('\n');
- counter = 0;
- }
- }
- }
- }
-
-/*
-* Convert some data into hex format
-*/
-void Hex_Encoder::write(const byte input[], u32bit length)
- {
- in.copy(position, input, length);
- if(position + length >= in.size())
- {
- encode_and_send(in, in.size());
- input += (in.size() - position);
- length -= (in.size() - position);
- while(length >= in.size())
- {
- encode_and_send(input, in.size());
- input += in.size();
- length -= in.size();
- }
- in.copy(input, length);
- position = 0;
- }
- position += length;
- }
-
-/*
-* Flush buffers
-*/
-void Hex_Encoder::end_msg()
- {
- encode_and_send(in, position);
- if(counter && line_length)
- send('\n');
- counter = position = 0;
- }
-
-/*
-* Hex_Decoder Constructor
-*/
-Hex_Decoder::Hex_Decoder(Decoder_Checking c) : checking(c)
- {
- in.resize(HEX_CODEC_BUFFER_SIZE);
- out.resize(in.size() / 2);
- position = 0;
- }
-
-/*
-* Check if a character is a valid hex char
-*/
-bool Hex_Decoder::is_valid(byte in)
- {
- return (HEX_TO_BIN[in] != 0x80);
- }
-
-/*
-* Handle processing an invalid character
-*/
-void Hex_Decoder::handle_bad_char(byte c)
- {
- if(checking == NONE)
- return;
-
- if((checking == IGNORE_WS) && Charset::is_space(c))
- return;
-
- throw Decoding_Error("Hex_Decoder: Invalid hex character: " +
- to_string(c));
- }
-
-/*
-* Hex Decoding Operation
-*/
-byte Hex_Decoder::decode(const byte hex[2])
- {
- return ((HEX_TO_BIN[hex[0]] << 4) | HEX_TO_BIN[hex[1]]);
- }
-
-/*
-* Decode and send a block
-*/
-void Hex_Decoder::decode_and_send(const byte block[], u32bit length)
- {
- for(u32bit j = 0; j != length / 2; ++j)
- out[j] = decode(block + 2*j);
- send(out, length / 2);
- }
-
-/*
-* Convert some data from hex format
-*/
-void Hex_Decoder::write(const byte input[], u32bit length)
- {
- for(u32bit j = 0; j != length; ++j)
- {
- if(is_valid(input[j]))
- in[position++] = input[j];
- else
- handle_bad_char(input[j]);
- if(position == in.size())
- {
- decode_and_send(in, in.size());
- position = 0;
- }
- }
- }
-
-/*
-* Flush buffers
-*/
-void Hex_Decoder::end_msg()
- {
- decode_and_send(in, position);
- position = 0;
- }
-
-}