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ircd: Add b64 <-> b58 convenience conversion suite.

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This commit is contained in:
Jason Volk 2018-04-22 14:23:05 -07:00
parent 3badab59a5
commit a3bcd2dbf3
2 changed files with 47 additions and 0 deletions
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5
include/ircd/base.h
View file

@ -42,6 +42,11 @@ namespace ircd
size_t b64decode_size(const string_view &in);
const_buffer b64decode(const mutable_buffer &out, const string_view &in);
std::string b64decode(const string_view &in);
// Base64 <-> Base58 convenience conversions
string_view b64tob58(const mutable_buffer &out, const string_view &in);
string_view b58tob64(const mutable_buffer &out, const string_view &in);
string_view b58tob64_unpadded(const mutable_buffer &out, const string_view &in);
}
inline size_t

42
ircd/base.cc
View file

@ -12,6 +12,48 @@
#include <boost/archive/iterators/binary_from_base64.hpp>
#include <boost/archive/iterators/transform_width.hpp>
ircd::string_view
ircd::b58tob64_unpadded(const mutable_buffer &out,
const string_view &in)
{
thread_local char tmp[64_KiB];
if(unlikely(b58decode_size(in) > size(tmp)))
throw error
{
"String too large for conversion at this time."
};
return b64encode_unpadded(out, b58decode(tmp, in));
}
ircd::string_view
ircd::b58tob64(const mutable_buffer &out,
const string_view &in)
{
thread_local char tmp[64_KiB];
if(unlikely(b58decode_size(in) > size(tmp)))
throw error
{
"String too large for conversion at this time."
};
return b64encode(out, b58decode(tmp, in));
}
ircd::string_view
ircd::b64tob58(const mutable_buffer &out,
const string_view &in)
{
thread_local char tmp[64_KiB];
if(unlikely(b64decode_size(in) > size(tmp)))
throw error
{
"String too large for conversion at this time."
};
return b58encode(out, b64decode(tmp, in));
}
namespace ircd
{
const char _b64_pad_