16219777054

Committed 11 Jul 2025 12:15PM UTC coverage: 90.572% (-0.001%) from 90.573%

Build # 16219777054

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push

github

Committed by

web-flow

Commit Message

Merge pull request #4969 from randombit/jack/fix-clang-tidy-hicpp-vararg

Enable and fix (well, mostly silence) clang-tidy warning hicpp-vararg

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82.21

/src/lib/ffi/ffi.cpp

/*
* (C) 2015,2017 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/ffi.h>

#include <botan/base64.h>
#include <botan/hex.h>
#include <botan/mem_ops.h>
#include <botan/version.h>
#include <botan/internal/ct_utils.h>
#include <botan/internal/ffi_util.h>
#include <cstdio>
#include <cstdlib>

#if defined(BOTAN_HAS_OS_UTILS)
   #include <botan/internal/os_utils.h>
#endif

namespace Botan_FFI {

namespace {

// NOLINTNEXTLINE(*-avoid-non-const-global-variables)
thread_local std::string g_last_exception_what;

int ffi_map_error_type(Botan::ErrorType err) {
   switch(err) {
      case Botan::ErrorType::Unknown:
         return BOTAN_FFI_ERROR_UNKNOWN_ERROR;

      case Botan::ErrorType::SystemError:
      case Botan::ErrorType::IoError:
      case Botan::ErrorType::Pkcs11Error:
      case Botan::ErrorType::CommonCryptoError:
      case Botan::ErrorType::ZlibError:
      case Botan::ErrorType::Bzip2Error:
      case Botan::ErrorType::LzmaError:
      case Botan::ErrorType::DatabaseError:
         return BOTAN_FFI_ERROR_SYSTEM_ERROR;

      case Botan::ErrorType::TPMError:
         return BOTAN_FFI_ERROR_TPM_ERROR;

      case Botan::ErrorType::NotImplemented:
         return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
      case Botan::ErrorType::OutOfMemory:
         return BOTAN_FFI_ERROR_OUT_OF_MEMORY;
      case Botan::ErrorType::InternalError:
         return BOTAN_FFI_ERROR_INTERNAL_ERROR;
      case Botan::ErrorType::InvalidObjectState:
         return BOTAN_FFI_ERROR_INVALID_OBJECT_STATE;
      case Botan::ErrorType::KeyNotSet:
         return BOTAN_FFI_ERROR_KEY_NOT_SET;
      case Botan::ErrorType::InvalidArgument:
      case Botan::ErrorType::InvalidNonceLength:
         return BOTAN_FFI_ERROR_BAD_PARAMETER;

      case Botan::ErrorType::EncodingFailure:
      case Botan::ErrorType::DecodingFailure:
         return BOTAN_FFI_ERROR_INVALID_INPUT;

      case Botan::ErrorType::InvalidTag:
         return BOTAN_FFI_ERROR_BAD_MAC;

      case Botan::ErrorType::InvalidKeyLength:
         return BOTAN_FFI_ERROR_INVALID_KEY_LENGTH;
      case Botan::ErrorType::LookupError:
         return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;

      case Botan::ErrorType::HttpError:
         return BOTAN_FFI_ERROR_HTTP_ERROR;
      case Botan::ErrorType::TLSError:
         return BOTAN_FFI_ERROR_TLS_ERROR;
      case Botan::ErrorType::RoughtimeError:
         return BOTAN_FFI_ERROR_ROUGHTIME_ERROR;
   }

   return BOTAN_FFI_ERROR_UNKNOWN_ERROR;
}

}  // namespace

void ffi_clear_last_exception() {
   g_last_exception_what.clear();
}

int ffi_error_exception_thrown(const char* func_name, const char* exn, int rc) {
   g_last_exception_what.assign(exn);

#if defined(BOTAN_HAS_OS_UTILS)
   std::string val;
   if(Botan::OS::read_env_variable(val, "BOTAN_FFI_PRINT_EXCEPTIONS") == true && !val.empty()) {
      // NOLINTNEXTLINE(hicpp-vararg)
      static_cast<void>(std::fprintf(stderr, "in %s exception '%s' returning %d\n", func_name, exn, rc));
   }
#endif

   return rc;
}

int ffi_error_exception_thrown(const char* func_name, const char* exn, Botan::ErrorType err) {
   return ffi_error_exception_thrown(func_name, exn, ffi_map_error_type(err));
}

int botan_view_str_bounce_fn(botan_view_ctx vctx, const char* str, size_t len) {
   return botan_view_bin_bounce_fn(vctx, reinterpret_cast<const uint8_t*>(str), len);
}

int botan_view_bin_bounce_fn(botan_view_ctx vctx, const uint8_t* buf, size_t len) {
   if(vctx == nullptr || buf == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

   botan_view_bounce_struct* ctx = static_cast<botan_view_bounce_struct*>(vctx);

   const size_t avail = *ctx->out_len;
   *ctx->out_len = len;

   if(avail < len || ctx->out_ptr == nullptr) {
      if(ctx->out_ptr != nullptr) {
         Botan::clear_mem(ctx->out_ptr, avail);
      }
      return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE;
   } else {
      Botan::copy_mem(ctx->out_ptr, buf, len);
      return BOTAN_FFI_SUCCESS;
   }
}

}  // namespace Botan_FFI

extern "C" {

using namespace Botan_FFI;

const char* botan_error_last_exception_message() {
   return g_last_exception_what.c_str();
}

const char* botan_error_description(int err) {
   switch(err) {
      case BOTAN_FFI_SUCCESS:
         return "OK";

      case BOTAN_FFI_INVALID_VERIFIER:
         return "Invalid verifier";

      case BOTAN_FFI_ERROR_INVALID_INPUT:
         return "Invalid input";

      case BOTAN_FFI_ERROR_BAD_MAC:
         return "Invalid authentication code";

      case BOTAN_FFI_ERROR_NO_VALUE:
         return "No value available";

      case BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE:
         return "Insufficient buffer space";

      case BOTAN_FFI_ERROR_STRING_CONVERSION_ERROR:
         return "String conversion error";

      case BOTAN_FFI_ERROR_EXCEPTION_THROWN:
         return "Exception thrown";

      case BOTAN_FFI_ERROR_OUT_OF_MEMORY:
         return "Out of memory";

      case BOTAN_FFI_ERROR_SYSTEM_ERROR:
         return "Error while calling system API";

      case BOTAN_FFI_ERROR_INTERNAL_ERROR:
         return "Internal error";

      case BOTAN_FFI_ERROR_BAD_FLAG:
         return "Bad flag";

      case BOTAN_FFI_ERROR_NULL_POINTER:
         return "Null pointer argument";

      case BOTAN_FFI_ERROR_BAD_PARAMETER:
         return "Bad parameter";

      case BOTAN_FFI_ERROR_KEY_NOT_SET:
         return "Key not set on object";

      case BOTAN_FFI_ERROR_INVALID_KEY_LENGTH:
         return "Invalid key length";

      case BOTAN_FFI_ERROR_INVALID_OBJECT_STATE:
         return "Invalid object state";

      case BOTAN_FFI_ERROR_NOT_IMPLEMENTED:
         return "Not implemented";

      case BOTAN_FFI_ERROR_INVALID_OBJECT:
         return "Invalid object handle";

      case BOTAN_FFI_ERROR_TLS_ERROR:
         return "TLS error";

      case BOTAN_FFI_ERROR_HTTP_ERROR:
         return "HTTP error";

      case BOTAN_FFI_ERROR_UNKNOWN_ERROR:
         return "Unknown error";

      default:
         return "Unknown error";
   }
}

/*
* Versioning
*/
uint32_t botan_ffi_api_version() {
   return BOTAN_HAS_FFI;
}

int botan_ffi_supports_api(uint32_t api_version) {
   // This is the API introduced in 3.8
   if(api_version == 20250506) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 3.4
   if(api_version == 20240408) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 3.2
   if(api_version == 20231009) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 3.1
   if(api_version == 20230711) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 3.0
   if(api_version == 20230403) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 2.18
   if(api_version == 20210220) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 2.13
   if(api_version == 20191214) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 2.8
   if(api_version == 20180713) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 2.3
   if(api_version == 20170815) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 2.1
   if(api_version == 20170327) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 2.0
   if(api_version == 20150515) {
      return BOTAN_FFI_SUCCESS;
   }

   // Something else:
   return -1;
}

const char* botan_version_string() {
   return Botan::version_cstr();
}

uint32_t botan_version_major() {
   return Botan::version_major();
}

uint32_t botan_version_minor() {
   return Botan::version_minor();
}

uint32_t botan_version_patch() {
   return Botan::version_patch();
}

uint32_t botan_version_datestamp() {
   return Botan::version_datestamp();
}

int botan_constant_time_compare(const uint8_t* x, const uint8_t* y, size_t len) {
   auto same = Botan::CT::is_equal(x, y, len);
   // Return 0 if same or -1 otherwise
   return static_cast<int>(same.select(1, 0)) - 1;
}

int botan_same_mem(const uint8_t* x, const uint8_t* y, size_t len) {
   return botan_constant_time_compare(x, y, len);
}

int botan_scrub_mem(void* mem, size_t bytes) {
   Botan::secure_scrub_memory(mem, bytes);
   return BOTAN_FFI_SUCCESS;
}

int botan_hex_encode(const uint8_t* in, size_t len, char* out, uint32_t flags) {
   return ffi_guard_thunk(__func__, [=]() -> int {
      const bool uppercase = (flags & BOTAN_FFI_HEX_LOWER_CASE) == 0;
      Botan::hex_encode(out, in, len, uppercase);
      return BOTAN_FFI_SUCCESS;
   });
}

int botan_hex_decode(const char* hex_str, size_t in_len, uint8_t* out, size_t* out_len) {
   return ffi_guard_thunk(__func__, [=]() -> int {
      const std::vector<uint8_t> bin = Botan::hex_decode(hex_str, in_len);
      return Botan_FFI::write_vec_output(out, out_len, bin);
   });
}

int botan_base64_encode(const uint8_t* in, size_t len, char* out, size_t* out_len) {
   return ffi_guard_thunk(__func__, [=]() -> int {
      const std::string base64 = Botan::base64_encode(in, len);
      return Botan_FFI::write_str_output(out, out_len, base64);
   });
}

int botan_base64_decode(const char* base64_str, size_t in_len, uint8_t* out, size_t* out_len) {
   return ffi_guard_thunk(__func__, [=]() -> int {
      if(*out_len < Botan::base64_decode_max_output(in_len)) {
         *out_len = Botan::base64_decode_max_output(in_len);
         return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE;
      }

      *out_len = Botan::base64_decode(out, std::string(base64_str, in_len));
      return BOTAN_FFI_SUCCESS;
   });
}
}

1	/*
2	* (C) 2015,2017 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include <botan/ffi.h>
8
9	#include <botan/base64.h>
10	#include <botan/hex.h>
11	#include <botan/mem_ops.h>
12	#include <botan/version.h>
13	#include <botan/internal/ct_utils.h>
14	#include <botan/internal/ffi_util.h>
15	#include <cstdio>
16	#include <cstdlib>
17
18	#if defined(BOTAN_HAS_OS_UTILS)
19	#include <botan/internal/os_utils.h>
20	#endif
21
22	namespace Botan_FFI {
23
24	namespace {
25
26	// NOLINTNEXTLINE(*-avoid-non-const-global-variables)
27	thread_local std::string g_last_exception_what;	96,533✔
28
29	int ffi_map_error_type(Botan::ErrorType err) {	11✔
30	switch(err) {	11✔
31	case Botan::ErrorType::Unknown:
32	return BOTAN_FFI_ERROR_UNKNOWN_ERROR;
33
34	case Botan::ErrorType::SystemError:	×
35	case Botan::ErrorType::IoError:	×
36	case Botan::ErrorType::Pkcs11Error:	×
37	case Botan::ErrorType::CommonCryptoError:	×
38	case Botan::ErrorType::ZlibError:	×
39	case Botan::ErrorType::Bzip2Error:	×
40	case Botan::ErrorType::LzmaError:	×
41	case Botan::ErrorType::DatabaseError:	×
42	return BOTAN_FFI_ERROR_SYSTEM_ERROR;	×
43
44	case Botan::ErrorType::TPMError:	×
45	return BOTAN_FFI_ERROR_TPM_ERROR;	×
46
47	case Botan::ErrorType::NotImplemented:
48	return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
49	case Botan::ErrorType::OutOfMemory:	×
50	return BOTAN_FFI_ERROR_OUT_OF_MEMORY;	×
51	case Botan::ErrorType::InternalError:	×
52	return BOTAN_FFI_ERROR_INTERNAL_ERROR;	×
53	case Botan::ErrorType::InvalidObjectState:	2✔
54	return BOTAN_FFI_ERROR_INVALID_OBJECT_STATE;	2✔
55	case Botan::ErrorType::KeyNotSet:	2✔
56	return BOTAN_FFI_ERROR_KEY_NOT_SET;	2✔
57	case Botan::ErrorType::InvalidArgument:	4✔
58	case Botan::ErrorType::InvalidNonceLength:	4✔
59	return BOTAN_FFI_ERROR_BAD_PARAMETER;	4✔
60
61	case Botan::ErrorType::EncodingFailure:	1✔
62	case Botan::ErrorType::DecodingFailure:	1✔
63	return BOTAN_FFI_ERROR_INVALID_INPUT;	1✔
64
65	case Botan::ErrorType::InvalidTag:	×
66	return BOTAN_FFI_ERROR_BAD_MAC;	×
67
68	case Botan::ErrorType::InvalidKeyLength:	×
69	return BOTAN_FFI_ERROR_INVALID_KEY_LENGTH;	×
70	case Botan::ErrorType::LookupError:
71	return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
72
73	case Botan::ErrorType::HttpError:	×
74	return BOTAN_FFI_ERROR_HTTP_ERROR;	×
75	case Botan::ErrorType::TLSError:	×
76	return BOTAN_FFI_ERROR_TLS_ERROR;	×
77	case Botan::ErrorType::RoughtimeError:	×
78	return BOTAN_FFI_ERROR_ROUGHTIME_ERROR;	×
79	}
80
81	return BOTAN_FFI_ERROR_UNKNOWN_ERROR;
82	}
83
84	} // namespace
85
86	void ffi_clear_last_exception() {	96,511✔
87	g_last_exception_what.clear();	96,511✔
88	}	96,502✔
89
90	int ffi_error_exception_thrown(const char* func_name, const char* exn, int rc) {	17✔
91	g_last_exception_what.assign(exn);	17✔
92
93	#if defined(BOTAN_HAS_OS_UTILS)
94	std::string val;	17✔
95	if(Botan::OS::read_env_variable(val, "BOTAN_FFI_PRINT_EXCEPTIONS") == true && !val.empty()) {	17✔
96	// NOLINTNEXTLINE(hicpp-vararg)
97	static_cast<void>(std::fprintf(stderr, "in %s exception '%s' returning %d\n", func_name, exn, rc));	×
98	}
99	#endif
100
101	return rc;	17✔
102	}	17✔
103
104	int ffi_error_exception_thrown(const char* func_name, const char* exn, Botan::ErrorType err) {	11✔
105	return ffi_error_exception_thrown(func_name, exn, ffi_map_error_type(err));	11✔
106	}
107
108	int botan_view_str_bounce_fn(botan_view_ctx vctx, const char* str, size_t len) {	68✔
109	return botan_view_bin_bounce_fn(vctx, reinterpret_cast<const uint8_t*>(str), len);	68✔
110	}
111
112	int botan_view_bin_bounce_fn(botan_view_ctx vctx, const uint8_t* buf, size_t len) {	155✔
113	if(vctx == nullptr \|\| buf == nullptr) {	155✔
114	return BOTAN_FFI_ERROR_NULL_POINTER;
115	}
116
117	botan_view_bounce_struct* ctx = static_cast<botan_view_bounce_struct*>(vctx);	155✔
118
119	const size_t avail = *ctx->out_len;	155✔
120	*ctx->out_len = len;	155✔
121
122	if(avail < len \|\| ctx->out_ptr == nullptr) {	155✔
123	if(ctx->out_ptr != nullptr) {	72✔
124	Botan::clear_mem(ctx->out_ptr, avail);	×
125	}
126	return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE;	72✔
127	} else {
128	Botan::copy_mem(ctx->out_ptr, buf, len);	83✔
129	return BOTAN_FFI_SUCCESS;	83✔
130	}
131	}
132
133	} // namespace Botan_FFI
134
135	extern "C" {
136
137	using namespace Botan_FFI;
138
139	const char* botan_error_last_exception_message() {	5✔
140	return g_last_exception_what.c_str();	5✔
141	}
142
143	const char* botan_error_description(int err) {	155✔
144	switch(err) {	155✔
145	case BOTAN_FFI_SUCCESS:
146	return "OK";
147
148	case BOTAN_FFI_INVALID_VERIFIER:	1✔
149	return "Invalid verifier";	1✔
150
151	case BOTAN_FFI_ERROR_INVALID_INPUT:	2✔
152	return "Invalid input";	2✔
153
154	case BOTAN_FFI_ERROR_BAD_MAC:	1✔
155	return "Invalid authentication code";	1✔
156
157	case BOTAN_FFI_ERROR_NO_VALUE:	2✔
158	return "No value available";	2✔
159
160	case BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE:	1✔
161	return "Insufficient buffer space";	1✔
162
163	case BOTAN_FFI_ERROR_STRING_CONVERSION_ERROR:	1✔
164	return "String conversion error";	1✔
165
166	case BOTAN_FFI_ERROR_EXCEPTION_THROWN:	1✔
167	return "Exception thrown";	1✔
168
169	case BOTAN_FFI_ERROR_OUT_OF_MEMORY:	1✔
170	return "Out of memory";	1✔
171
172	case BOTAN_FFI_ERROR_SYSTEM_ERROR:	1✔
173	return "Error while calling system API";	1✔
174
175	case BOTAN_FFI_ERROR_INTERNAL_ERROR:	1✔
176	return "Internal error";	1✔
177
178	case BOTAN_FFI_ERROR_BAD_FLAG:	1✔
179	return "Bad flag";	1✔
180
181	case BOTAN_FFI_ERROR_NULL_POINTER:	1✔
182	return "Null pointer argument";	1✔
183
184	case BOTAN_FFI_ERROR_BAD_PARAMETER:	1✔
185	return "Bad parameter";	1✔
186
187	case BOTAN_FFI_ERROR_KEY_NOT_SET:	1✔
188	return "Key not set on object";	1✔
189
190	case BOTAN_FFI_ERROR_INVALID_KEY_LENGTH:	1✔
191	return "Invalid key length";	1✔
192
193	case BOTAN_FFI_ERROR_INVALID_OBJECT_STATE:	1✔
194	return "Invalid object state";	1✔
195
196	case BOTAN_FFI_ERROR_NOT_IMPLEMENTED:	4✔
197	return "Not implemented";	4✔
198
199	case BOTAN_FFI_ERROR_INVALID_OBJECT:	1✔
200	return "Invalid object handle";	1✔
201
202	case BOTAN_FFI_ERROR_TLS_ERROR:	1✔
203	return "TLS error";	1✔
204
205	case BOTAN_FFI_ERROR_HTTP_ERROR:	1✔
206	return "HTTP error";	1✔
207
208	case BOTAN_FFI_ERROR_UNKNOWN_ERROR:
209	return "Unknown error";
210
211	default:
212	return "Unknown error";
213	}
214	}
215
216	/*
217	* Versioning
218	*/
219	uint32_t botan_ffi_api_version() {	4✔
220	return BOTAN_HAS_FFI;	4✔
221	}
222
223	int botan_ffi_supports_api(uint32_t api_version) {	7✔
224	// This is the API introduced in 3.8
225	if(api_version == 20250506) {	7✔
226	return BOTAN_FFI_SUCCESS;
227	}
228
229	// This is the API introduced in 3.4
230	if(api_version == 20240408) {	5✔
231	return BOTAN_FFI_SUCCESS;
232	}
233
234	// This is the API introduced in 3.2
235	if(api_version == 20231009) {	5✔
236	return BOTAN_FFI_SUCCESS;
237	}
238
239	// This is the API introduced in 3.1
240	if(api_version == 20230711) {	5✔
241	return BOTAN_FFI_SUCCESS;
242	}
243
244	// This is the API introduced in 3.0
245	if(api_version == 20230403) {	5✔
246	return BOTAN_FFI_SUCCESS;
247	}
248
249	// This is the API introduced in 2.18
250	if(api_version == 20210220) {	5✔
251	return BOTAN_FFI_SUCCESS;
252	}
253
254	// This is the API introduced in 2.13
255	if(api_version == 20191214) {	5✔
256	return BOTAN_FFI_SUCCESS;
257	}
258
259	// This is the API introduced in 2.8
260	if(api_version == 20180713) {	5✔
261	return BOTAN_FFI_SUCCESS;
262	}
263
264	// This is the API introduced in 2.3
265	if(api_version == 20170815) {	4✔
266	return BOTAN_FFI_SUCCESS;
267	}
268
269	// This is the API introduced in 2.1
270	if(api_version == 20170327) {	3✔
271	return BOTAN_FFI_SUCCESS;
272	}
273
274	// This is the API introduced in 2.0
275	if(api_version == 20150515) {	2✔
276	return BOTAN_FFI_SUCCESS;	1✔
277	}
278
279	// Something else:
280	return -1;
281	}
282
283	const char* botan_version_string() {	2✔
284	return Botan::version_cstr();	2✔
285	}
286
287	uint32_t botan_version_major() {	2✔
288	return Botan::version_major();	2✔
289	}
290
291	uint32_t botan_version_minor() {	2✔
292	return Botan::version_minor();	2✔
293	}
294
295	uint32_t botan_version_patch() {	1✔
296	return Botan::version_patch();	1✔
297	}
298
299	uint32_t botan_version_datestamp() {	1✔
300	return Botan::version_datestamp();	1✔
301	}
302
303	int botan_constant_time_compare(const uint8_t* x, const uint8_t* y, size_t len) {	28✔
304	auto same = Botan::CT::is_equal(x, y, len);	28✔
305	// Return 0 if same or -1 otherwise
306	return static_cast<int>(same.select(1, 0)) - 1;	28✔
307	}
308
309	int botan_same_mem(const uint8_t* x, const uint8_t* y, size_t len) {	×
310	return botan_constant_time_compare(x, y, len);	×
311	}
312
313	int botan_scrub_mem(void* mem, size_t bytes) {	1✔
314	Botan::secure_scrub_memory(mem, bytes);	1✔
315	return BOTAN_FFI_SUCCESS;	1✔
316	}
317
318	int botan_hex_encode(const uint8_t* in, size_t len, char* out, uint32_t flags) {	3✔
319	return ffi_guard_thunk(__func__, [=]() -> int {	3✔
320	const bool uppercase = (flags & BOTAN_FFI_HEX_LOWER_CASE) == 0;	3✔
321	Botan::hex_encode(out, in, len, uppercase);	3✔
322	return BOTAN_FFI_SUCCESS;
323	});	3✔
324	}
325
326	int botan_hex_decode(const char* hex_str, size_t in_len, uint8_t* out, size_t* out_len) {	2✔
327	return ffi_guard_thunk(__func__, [=]() -> int {	2✔
328	const std::vector<uint8_t> bin = Botan::hex_decode(hex_str, in_len);	2✔
329	return Botan_FFI::write_vec_output(out, out_len, bin);	2✔
330	});	2✔
331	}
332
333	int botan_base64_encode(const uint8_t* in, size_t len, char* out, size_t* out_len) {	2✔
334	return ffi_guard_thunk(__func__, [=]() -> int {	2✔
335	const std::string base64 = Botan::base64_encode(in, len);	2✔
336	return Botan_FFI::write_str_output(out, out_len, base64);	2✔
337	});	2✔
338	}
339
340	int botan_base64_decode(const char* base64_str, size_t in_len, uint8_t* out, size_t* out_len) {	2✔
341	return ffi_guard_thunk(__func__, [=]() -> int {	2✔
342	if(*out_len < Botan::base64_decode_max_output(in_len)) {	2✔
343	*out_len = Botan::base64_decode_max_output(in_len);	1✔
344	return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE;	1✔
345	}
346
347	*out_len = Botan::base64_decode(out, std::string(base64_str, in_len));	1✔
348	return BOTAN_FFI_SUCCESS;	1✔
349	});	2✔
350	}
351	}

randombit / botan / 16219777054

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