146 lines
3.5 KiB
C++
146 lines
3.5 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright:
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* 2014-2016, Danny Robson <danny@nerdcruft.net>
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*/
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#include <iostream>
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#include <cstdlib>
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#include <cstring>
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#include "io.hpp"
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#include "stream.hpp"
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#include "hash/adler.hpp"
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#include "hash/bsdsum.cpp"
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#include "hash/crc.hpp"
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#include "hash/md2.hpp"
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#include "hash/md4.hpp"
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#include "hash/md5.hpp"
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#include "hash/ripemd.hpp"
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#include "hash/sha1.hpp"
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#include "hash/sha2.hpp"
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///////////////////////////////////////////////////////////////////////////////
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static
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const char* NAMES[] = {
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"adler32",
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"bsdsum",
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"crc",
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"MD2",
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"MD4",
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"MD5",
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"RIPEMD",
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"SHA1",
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"SHA256",
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};
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///////////////////////////////////////////////////////////////////////////////
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std::ostream&
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print_digest (std::ostream &os, uint32_t t)
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{
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return os << std::hex << t << std::dec;
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}
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//-----------------------------------------------------------------------------
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template <size_t S>
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std::ostream&
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print_digest (std::ostream &os, std::array<uint8_t,S> digest)
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{
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util::stream::scoped::flags f (os);
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os << std::hex;
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for (auto c: digest)
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os << +(c >> 4) << +(c & 0x0F);
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return os;
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}
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///////////////////////////////////////////////////////////////////////////////
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static void
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compute (const std::string &name, const util::view<const uint8_t*> data)
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{
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#define stream(TYPE, ...) do { \
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if (name != #TYPE) \
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break; \
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\
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print_digest ( \
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std::cout, \
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util::hash::TYPE{} (data) \
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) << '\n'; \
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return; \
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} while (0);
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stream (adler32);
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//stream (bsdsum);
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//stream (crc32);
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//stream (MD2);
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//stream (MD4);
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//stream (MD5);
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//stream (RIPEMD);
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//stream (SHA1);
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//stream (SHA256);
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#undef stream
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}
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///////////////////////////////////////////////////////////////////////////////
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enum {
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ARG_CMD,
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ARG_HASH,
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ARG_INPUT,
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NUM_ARGS
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};
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//-----------------------------------------------------------------------------
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void
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print_usage (int argc, char **argv)
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{
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(void)argc;
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std::cerr << argv[ARG_CMD] << " [";
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for (auto name: NAMES)
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std::cerr << name << "|";
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std::cerr << "] <input>\n";
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}
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//-----------------------------------------------------------------------------
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int
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main (int argc, char **argv)
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{
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if (argc != NUM_ARGS) {
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print_usage (argc, argv);
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return EXIT_FAILURE;
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}
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if (strcmp (argv[ARG_INPUT], "-")) {
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const util::mapped_file src (argv[ARG_INPUT]);
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compute (argv[ARG_HASH], util::view{src});
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return EXIT_SUCCESS;
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} else {
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//compute (argv[ARG_HASH], std::cin);
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return EXIT_SUCCESS;
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}
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}
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