Line data    Source code

       1              : /* go-sha1.cc -- Go frontend interface to gcc backend.
       2              :    Copyright (C) 2016-2026 Free Software Foundation, Inc.
       3              : 
       4              : This file is part of GCC.
       5              : 
       6              : GCC is free software; you can redistribute it and/or modify it under
       7              : the terms of the GNU General Public License as published by the Free
       8              : Software Foundation; either version 3, or (at your option) any later
       9              : version.
      10              : 
      11              : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12              : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13              : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14              : for more details.
      15              : 
      16              : You should have received a copy of the GNU General Public License
      17              : along with GCC; see the file COPYING3.  If not see
      18              : <http://www.gnu.org/licenses/>.  */
      19              : 
      20              : #include "go-sha1.h"
      21              : #include "sha1.h"
      22              : 
      23              : class Gcc_sha1_helper : public Go_sha1_helper
      24              : {
      25              :  public:
      26              : 
      27         8580 :   Gcc_sha1_helper() : ctx_(new sha1_ctx) { sha1_init_ctx(this->ctx_); }
      28              : 
      29              :   ~Gcc_sha1_helper();
      30              : 
      31              :   // Incorporate 'len' bytes from 'buffer' into checksum.
      32              :   void
      33              :   process_bytes(const void* buffer, size_t len);
      34              : 
      35              :   // Finalize checksum and return in the form of a string.
      36              :   std::string
      37              :   finish();
      38              : 
      39              :  private:
      40              :   sha1_ctx *ctx_;
      41              : };
      42              : 
      43         8656 : Gcc_sha1_helper::~Gcc_sha1_helper()
      44              : {
      45         4328 :   delete ctx_;
      46         8656 : }
      47              : 
      48              : void
      49     16240218 : Gcc_sha1_helper::process_bytes(const void* buffer, size_t len)
      50              : {
      51     16240218 :   sha1_process_bytes(buffer, len, this->ctx_);
      52     16240218 : }
      53              : 
      54              : std::string
      55         4328 : Gcc_sha1_helper::finish()
      56              : {
      57              :   // Use a union to provide the required alignment.
      58         4328 :   union
      59              :   {
      60              :     char checksum[checksum_len];
      61              :     long align;
      62              :   } u;
      63         4328 :   sha1_finish_ctx(this->ctx_, u.checksum);
      64         4328 :   return std::string(u.checksum, checksum_len);
      65              : }
      66              : 
      67              : Go_sha1_helper*
      68         8580 : go_create_sha1_helper()
      69              : {
      70         8580 :   return new Gcc_sha1_helper();
      71              : }