diff options
author | Karen Arutyunov <karen@codesynthesis.com> | 2017-05-01 16:08:43 +0300 |
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committer | Karen Arutyunov <karen@codesynthesis.com> | 2017-05-01 16:59:24 +0300 |
commit | 61377c582e0f2675baa5f5e6e30a35d1a4164b33 (patch) | |
tree | 11cdca992834d7f7f197f72856712fbcb3020e3d /butl/sha256.cxx | |
parent | 442c1a6790e52baa0c081f310d4d9e9b6f1ff638 (diff) |
Add hxx extension for headers and lib prefix for library dir
Diffstat (limited to 'butl/sha256.cxx')
-rw-r--r-- | butl/sha256.cxx | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/butl/sha256.cxx b/butl/sha256.cxx deleted file mode 100644 index fa14d0e..0000000 --- a/butl/sha256.cxx +++ /dev/null @@ -1,142 +0,0 @@ -// file : butl/sha256.cxx -*- C++ -*- -// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd -// license : MIT; see accompanying LICENSE file - -#include <butl/sha256> - -// C interface for sha256c. -// -#include <stdint.h> -#include <stddef.h> // size_t - -#include <cctype> // isxdigit() -#include <stdexcept> // invalid_argument - -#include <butl/utility> // ucase(), lcase() - -using SHA256_CTX = butl::sha256::context; - -extern "C" -{ - static void SHA256_Init (SHA256_CTX*); - static void SHA256_Update (SHA256_CTX*, const void*, size_t); - static void SHA256_Final (uint8_t[32], SHA256_CTX*); - -#include "sha256c.c" -} - -using namespace std; - -namespace butl -{ - // sha256 - // - sha256:: - sha256 () - : done_ (false) - { - SHA256_Init (&ctx_); - } - - void sha256:: - append (const void* b, size_t n) - { - SHA256_Update (&ctx_, b, n); - } - - const sha256::digest_type& sha256:: - binary () const - { - if (!done_) - { - SHA256_Final (bin_, &ctx_); - done_ = true; - str_[0] = '\0'; // Indicate we haven't computed the string yet. - } - - return bin_; - } - - static const char hex_map[16] = { - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', - 'a', 'b', 'c', 'd', 'e', 'f'}; - - const char* sha256:: - string () const - { - if (!done_) - binary (); - - if (str_[0] == '\0') - { - for (size_t i (0); i != 32; ++i) - { - str_[i * 2] = hex_map[bin_[i] >> 4]; - str_[i * 2 + 1] = hex_map[bin_[i] & 0x0f]; - } - - str_[64] = '\0'; - } - - return str_; - } - - // Conversion functions - // - string - sha256_to_fingerprint (const string& s) - { - auto bad = []() {throw invalid_argument ("invalid SHA256 string");}; - - size_t n (s.size ()); - if (n != 64) - bad (); - - string f; - f.reserve (n + 31); - for (size_t i (0); i < n; ++i) - { - char c (s[i]); - if (!isxdigit (c)) - bad (); - - if (i > 0 && i % 2 == 0) - f += ":"; - - f += ucase (c); - } - - return f; - } - - string - fingerprint_to_sha256 (const string& f) - { - auto bad = []() {throw invalid_argument ("invalid fingerprint");}; - - size_t n (f.size ()); - if (n != 32 * 3 - 1) - bad (); - - string s; - s.reserve (64); - for (size_t i (0); i < n; ++i) - { - char c (f[i]); - if ((i + 1) % 3 == 0) - { - if (c != ':') - bad (); - } - else - { - if (!isxdigit (c)) - bad (); - - s += lcase (c); - } - } - - return s; - } -} |