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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
#ifndef LLARP_BENCODE_HPP
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#define LLARP_BENCODE_HPP
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#include <list>
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#include <llarp/buffer.h>
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#include <string>
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namespace llarp {
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template <typename ValType>
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bool BEncode(const ValType &t, llarp_buffer_t *buff);
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template <typename ValType> bool BDecode(ValType &t, llarp_buffer_t *buff);
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static bool bencodeDict(llarp_buffer_t *buff) {
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static uint8_t c = 'd';
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return llarp_buffer_write(buff, &c, 1);
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}
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static bool bencodeList(llarp_buffer_t *buff) {
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static uint8_t c = 'l';
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return llarp_buffer_write(buff, &c, 1);
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}
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static bool bencodeEnd(llarp_buffer_t *buff) {
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static char c = 'e';
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return llarp_buffer_write(buff, &c, 1);
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}
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static bool bencodeDictKey(llarp_buffer_t *buff, const std::string &key) {
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std::string kstr = std::to_string(key.size()) + ":" + key;
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return llarp_buffer_write(buff, kstr.c_str(), kstr.size());
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}
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template <typename IntType>
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static bool bencodeDict_Int(llarp_buffer_t *buff, const std::string &key,
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IntType i) {
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std::string istr = "i" + std::to_string(i) + "e";
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return bencodeDictKey(buff, key) &&
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llarp_buffer_write(buff, istr.c_str(), istr.size());
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}
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static bool bencodeDict_Bytes(llarp_buffer_t *buff, const std::string &key,
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const void *data, size_t sz) {
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std::string sz_str = std::to_string(sz) + ":";
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return bencodeDictKey(buff, key) &&
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llarp_buffer_write(buff, sz_str.c_str(), sz_str.size()) &&
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llarp_buffer_write(buff, data, sz);
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}
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template <typename T>
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bool BEncode(const std::list<T> &l, llarp_buffer_t *buff) {
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if (bencodeList(buff)) {
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for (const auto &itr : l)
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if (!BEncode(itr, buff))
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return false;
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return bencodeEnd(buff);
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}
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return false;
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}
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} // namespace llarp
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#endif
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