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lib/crypto/Base64: add overload which returns AllocatedArray<std::byte>

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This commit is contained in:
Max Kellermann
2022-05-24 14:26:59 +02:00
parent 3699514d18
commit 3dd2434149
3 changed files with 22 additions and 12 deletions
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10
src/lib/crypto/Base64.cxx
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@@ -29,6 +29,7 @@
#include "Base64.hxx"
#include "lib/ffmpeg/Error.hxx"
#include "util/AllocatedArray.hxx"
extern "C" {
#include <libavutil/base64.h>
@@ -54,3 +55,12 @@ DecodeBase64(std::span<std::byte> out, const char *in)
return nbytes;
}
AllocatedArray<std::byte>
DecodeBase64(std::string_view src)
{
AllocatedArray<std::byte> dest{CalculateBase64OutputSize(src.size())};
const std::size_t dest_size = DecodeBase64(dest, src);
dest.SetSize(dest_size);
return dest;
}

10
src/lib/crypto/Base64.hxx
View File

@@ -33,6 +33,8 @@
#include <span>
#include <string_view>
template<typename T> class AllocatedArray;
constexpr size_t
CalculateBase64OutputSize(size_t in_size) noexcept
{
@@ -50,3 +52,11 @@ DecodeBase64(std::span<std::byte> out, std::string_view in);
*/
size_t
DecodeBase64(std::span<std::byte> out, const char *in);
/**
* Throws on error.
*
* @return the decoded string
*/
AllocatedArray<std::byte>
DecodeBase64(std::string_view src);