23111636944

Committed 15 Mar 2026 01:45PM UTC coverage: 89.732% (+0.002%) from 89.73%

Build # 23111636944

Build Type

Pull #5446

github

Committed by

web-flow

Commit Message

Merge 75b20e42b into e9952d62f

Pull Request Pull Request #5446: Address (or silence) various new warnings from clang-tidy 22

Run Details

104217 of 116142 relevant lines covered (89.73%)

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79.63

/src/cli/entropy.cpp

/*
* (C) 2019 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "cli.h"

#if defined(BOTAN_HAS_ENTROPY_SOURCE)
   #include <botan/entropy_src.h>
   #include <botan/hex.h>
   #include <botan/rng.h>
#endif

#if defined(BOTAN_HAS_COMPRESSION)
   #include <botan/compression.h>
#endif

namespace Botan_CLI {

namespace {

#if defined(BOTAN_HAS_ENTROPY_SOURCE)

class SeedCapturing_RNG final : public Botan::RandomNumberGenerator {
   public:
      bool accepts_input() const override { return true; }

      void clear() override {}

      bool is_seeded() const override { return false; }

      std::string name() const override { return "SeedCapturing"; }

      size_t samples() const { return m_samples; }

      const std::vector<uint8_t>& seed_material() const { return m_seed; }

   private:
      void fill_bytes_with_input(std::span<uint8_t> output, std::span<const uint8_t> input) override {
         if(!output.empty()) {
            throw CLI_Error("SeedCapturing_RNG has no output");
         }

         m_samples++;
         m_seed.insert(m_seed.end(), input.begin(), input.end());
      }

   private:
      std::vector<uint8_t> m_seed;
      size_t m_samples = 0;
};

class Entropy final : public Command {
   public:
      Entropy() : Command("entropy --truncate-at=128 source") {}

      std::string group() const override { return "misc"; }

      std::string description() const override { return "Sample a raw entropy source"; }

      void go() override {
         const std::string req_source = get_arg("source");
         const size_t truncate_sample = get_arg_sz("truncate-at");

         auto& entropy_sources = Botan::Entropy_Sources::global_sources();

         std::vector<std::string> sources;
         if(req_source == "all") {
            sources = entropy_sources.enabled_sources();
         } else {
            sources.push_back(req_source);
         }

         for(const std::string& source : sources) {
            SeedCapturing_RNG rng;
            const size_t entropy_estimate = entropy_sources.poll_just(rng, source);

            if(rng.samples() == 0) {
               output() << "Source " << source << " is unavailable\n";
               continue;
            }

            const auto& sample = rng.seed_material();

            output() << "Polling " << source << " gathered " << sample.size() << " bytes in " << rng.samples()
                     << " outputs with estimated entropy " << entropy_estimate << "\n";

   #if defined(BOTAN_HAS_COMPRESSION)
            if(!sample.empty()) {
               auto comp = Botan::Compression_Algorithm::create("zlib");
               if(comp) {
                  try {
                     Botan::secure_vector<uint8_t> compressed;
                     compressed.assign(sample.begin(), sample.end());
                     comp->start(9);
                     comp->finish(compressed);

                     if(compressed.size() < sample.size()) {
                        output() << "Sample from " << source << " was zlib compressed from " << sample.size()
                                 << " bytes to " << compressed.size() << " bytes\n";
                     }
                  } catch(std::exception& e) {
                     error_output() << "Error while attempting to compress: " << e.what() << "\n";
                  }
               }
            }
   #endif

            if(sample.size() <= truncate_sample) {
               output() << Botan::hex_encode(sample) << "\n";
            } else if(truncate_sample > 0) {
               output() << Botan::hex_encode(sample.data(), truncate_sample) << "...\n";
            }
         }
      }
};

BOTAN_REGISTER_COMMAND("entropy", Entropy);

#endif

}  // namespace

}  // namespace Botan_CLI

1	/*
2	* (C) 2019 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include "cli.h"
8
9	#if defined(BOTAN_HAS_ENTROPY_SOURCE)
10	#include <botan/entropy_src.h>
11	#include <botan/hex.h>
12	#include <botan/rng.h>
13	#endif
14
15	#if defined(BOTAN_HAS_COMPRESSION)
16	#include <botan/compression.h>
17	#endif
18
19	namespace Botan_CLI {
20
21	namespace {
22
23	#if defined(BOTAN_HAS_ENTROPY_SOURCE)
24
25	class SeedCapturing_RNG final : public Botan::RandomNumberGenerator {	4✔
26	public:
27	bool accepts_input() const override { return true; }	2✔
28
29	void clear() override {}	×
30
31	bool is_seeded() const override { return false; }	×
32
33	std::string name() const override { return "SeedCapturing"; }	×
34
35	size_t samples() const { return m_samples; }	8✔
36
37	const std::vector<uint8_t>& seed_material() const { return m_seed; }
38
39	private:
40	void fill_bytes_with_input(std::span<uint8_t> output, std::span<const uint8_t> input) override {	4✔
41	if(!output.empty()) {	4✔
42	throw CLI_Error("SeedCapturing_RNG has no output");	×
43	}
44
45	m_samples++;	4✔
46	m_seed.insert(m_seed.end(), input.begin(), input.end());	4✔
47	}	4✔
48
49	private:
50	std::vector<uint8_t> m_seed;
51	size_t m_samples = 0;
52	};
53
54	class Entropy final : public Command {
55	public:
56	Entropy() : Command("entropy --truncate-at=128 source") {}	4✔
57
58	std::string group() const override { return "misc"; }	1✔
59
60	std::string description() const override { return "Sample a raw entropy source"; }	1✔
61
62	void go() override {	1✔
63	const std::string req_source = get_arg("source");	1✔
64	const size_t truncate_sample = get_arg_sz("truncate-at");	1✔
65
66	auto& entropy_sources = Botan::Entropy_Sources::global_sources();	1✔
67
68	std::vector<std::string> sources;	1✔
69	if(req_source == "all") {	1✔
70	sources = entropy_sources.enabled_sources();	1✔
71	} else {
72	sources.push_back(req_source);	×
73	}
74
75	for(const std::string& source : sources) {	5✔
76	SeedCapturing_RNG rng;	4✔
77	const size_t entropy_estimate = entropy_sources.poll_just(rng, source);	4✔
78
79	if(rng.samples() == 0) {	4✔
80	output() << "Source " << source << " is unavailable\n";	×
81	continue;	×
82	}
83
84	const auto& sample = rng.seed_material();	4✔
85
86	output() << "Polling " << source << " gathered " << sample.size() << " bytes in " << rng.samples()	4✔
87	<< " outputs with estimated entropy " << entropy_estimate << "\n";	4✔
88
89	#if defined(BOTAN_HAS_COMPRESSION)
90	if(!sample.empty()) {	4✔
91	auto comp = Botan::Compression_Algorithm::create("zlib");	4✔
92	if(comp) {	4✔
93	try {	4✔
94	Botan::secure_vector<uint8_t> compressed;	4✔
95	compressed.assign(sample.begin(), sample.end());	4✔
96	comp->start(9);	4✔
97	comp->finish(compressed);	4✔
98
99	if(compressed.size() < sample.size()) {	4✔
100	output() << "Sample from " << source << " was zlib compressed from " << sample.size()	×
101	<< " bytes to " << compressed.size() << " bytes\n";	×
102	}
103	} catch(std::exception& e) {	4✔
104	error_output() << "Error while attempting to compress: " << e.what() << "\n";	×
105	}	×
106	}
107	}	4✔
108	#endif
109
110	if(sample.size() <= truncate_sample) {	4✔
111	output() << Botan::hex_encode(sample) << "\n";	2✔
112	} else if(truncate_sample > 0) {	3✔
113	output() << Botan::hex_encode(sample.data(), truncate_sample) << "...\n";	9✔
114	}
115	}	4✔
116	}	1✔
117	};
118
119	BOTAN_REGISTER_COMMAND("entropy", Entropy);	2✔
120
121	#endif
122
123	} // namespace
124
125	} // namespace Botan_CLI

randombit / botan / 23111636944

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