21428849131

Committed 28 Jan 2026 07:14AM UTC coverage: 90.066% (-0.01%) from 90.077%

Build # 21428849131

Build Type

Pull #5124

github

Committed by

web-flow

Commit Message

Merge 6e78eba88 into 0d718b146

Pull Request Pull Request #5124: Cooperative Cancellation in PasswordHash

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83.04

/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::OperationCanceled:
      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") && !val.empty()) {
      // NOLINTNEXTLINE(*-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;
   }

   const 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_OUT_OF_RANGE:
         return "Index out of range";

      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:
      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 3.11
   if(api_version == 20260203) {
      return BOTAN_FFI_SUCCESS;
   }

   // This is the API introduced in 3.10
   if(api_version == 20250829) {
      return BOTAN_FFI_SUCCESS;
   }

   // 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;	97,958✔
28
29	int ffi_map_error_type(Botan::ErrorType err) {	13✔
30	switch(err) {	13✔
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::OperationCanceled:	4✔
54	case Botan::ErrorType::InvalidObjectState:	4✔
55	return BOTAN_FFI_ERROR_INVALID_OBJECT_STATE;	4✔
56	case Botan::ErrorType::KeyNotSet:	2✔
57	return BOTAN_FFI_ERROR_KEY_NOT_SET;	2✔
58	case Botan::ErrorType::InvalidArgument:	4✔
59	case Botan::ErrorType::InvalidNonceLength:	4✔
60	return BOTAN_FFI_ERROR_BAD_PARAMETER;	4✔
61
62	case Botan::ErrorType::EncodingFailure:	1✔
63	case Botan::ErrorType::DecodingFailure:	1✔
64	return BOTAN_FFI_ERROR_INVALID_INPUT;	1✔
65
66	case Botan::ErrorType::InvalidTag:	×
67	return BOTAN_FFI_ERROR_BAD_MAC;	×
68
69	case Botan::ErrorType::InvalidKeyLength:	×
70	return BOTAN_FFI_ERROR_INVALID_KEY_LENGTH;	×
71	case Botan::ErrorType::LookupError:
72	return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
73
74	case Botan::ErrorType::HttpError:	×
75	return BOTAN_FFI_ERROR_HTTP_ERROR;	×
76	case Botan::ErrorType::TLSError:	×
77	return BOTAN_FFI_ERROR_TLS_ERROR;	×
78	case Botan::ErrorType::RoughtimeError:	×
79	return BOTAN_FFI_ERROR_ROUGHTIME_ERROR;	×
80	}
81
82	return BOTAN_FFI_ERROR_UNKNOWN_ERROR;
83	}
84
85	} // namespace
86
87	void ffi_clear_last_exception() {	97,931✔
88	g_last_exception_what.clear();	97,931✔
89	}	97,922✔
90
91	int ffi_error_exception_thrown(const char* func_name, const char* exn, int rc) {	20✔
92	g_last_exception_what.assign(exn);	20✔
93
94	#if defined(BOTAN_HAS_OS_UTILS)
95	std::string val;	20✔
96	if(Botan::OS::read_env_variable(val, "BOTAN_FFI_PRINT_EXCEPTIONS") && !val.empty()) {	20✔
97	// NOLINTNEXTLINE(*-vararg)
98	static_cast<void>(std::fprintf(stderr, "in %s exception '%s' returning %d\n", func_name, exn, rc));	×
99	}
100	#endif
101
102	return rc;	20✔
103	}	20✔
104
105	int ffi_error_exception_thrown(const char* func_name, const char* exn, Botan::ErrorType err) {	13✔
106	return ffi_error_exception_thrown(func_name, exn, ffi_map_error_type(err));	13✔
107	}
108
109	int botan_view_str_bounce_fn(botan_view_ctx vctx, const char* str, size_t len) {	74✔
110	return botan_view_bin_bounce_fn(vctx, reinterpret_cast<const uint8_t*>(str), len);	74✔
111	}
112
113	int botan_view_bin_bounce_fn(botan_view_ctx vctx, const uint8_t* buf, size_t len) {	168✔
114	if(vctx == nullptr \|\| buf == nullptr) {	168✔
115	return BOTAN_FFI_ERROR_NULL_POINTER;
116	}
117
118	const botan_view_bounce_struct* ctx = static_cast<botan_view_bounce_struct*>(vctx);	168✔
119
120	const size_t avail = *ctx->out_len;	168✔
121	*ctx->out_len = len;	168✔
122
123	if(avail < len \|\| ctx->out_ptr == nullptr) {	168✔
124	if(ctx->out_ptr != nullptr) {	78✔
125	Botan::clear_mem(ctx->out_ptr, avail);	×
126	}
127	return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE;	78✔
128	} else {
129	Botan::copy_mem(ctx->out_ptr, buf, len);	90✔
130	return BOTAN_FFI_SUCCESS;	90✔
131	}
132	}
133
134	} // namespace Botan_FFI
135
136	extern "C" {
137
138	using namespace Botan_FFI;
139
140	const char* botan_error_last_exception_message() {	7✔
141	return g_last_exception_what.c_str();	7✔
142	}
143
144	const char* botan_error_description(int err) {	158✔
145	switch(err) {	158✔
146	case BOTAN_FFI_SUCCESS:
147	return "OK";
148
149	case BOTAN_FFI_INVALID_VERIFIER:	1✔
150	return "Invalid verifier";	1✔
151
152	case BOTAN_FFI_ERROR_INVALID_INPUT:	2✔
153	return "Invalid input";	2✔
154
155	case BOTAN_FFI_ERROR_BAD_MAC:	1✔
156	return "Invalid authentication code";	1✔
157
158	case BOTAN_FFI_ERROR_NO_VALUE:	2✔
159	return "No value available";	2✔
160
161	case BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE:	1✔
162	return "Insufficient buffer space";	1✔
163
164	case BOTAN_FFI_ERROR_STRING_CONVERSION_ERROR:	1✔
165	return "String conversion error";	1✔
166
167	case BOTAN_FFI_ERROR_EXCEPTION_THROWN:	1✔
168	return "Exception thrown";	1✔
169
170	case BOTAN_FFI_ERROR_OUT_OF_MEMORY:	1✔
171	return "Out of memory";	1✔
172
173	case BOTAN_FFI_ERROR_SYSTEM_ERROR:	1✔
174	return "Error while calling system API";	1✔
175
176	case BOTAN_FFI_ERROR_INTERNAL_ERROR:	1✔
177	return "Internal error";	1✔
178
179	case BOTAN_FFI_ERROR_BAD_FLAG:	1✔
180	return "Bad flag";	1✔
181
182	case BOTAN_FFI_ERROR_NULL_POINTER:	1✔
183	return "Null pointer argument";	1✔
184
185	case BOTAN_FFI_ERROR_BAD_PARAMETER:	1✔
186	return "Bad parameter";	1✔
187
188	case BOTAN_FFI_ERROR_KEY_NOT_SET:	1✔
189	return "Key not set on object";	1✔
190
191	case BOTAN_FFI_ERROR_INVALID_KEY_LENGTH:	1✔
192	return "Invalid key length";	1✔
193
194	case BOTAN_FFI_ERROR_INVALID_OBJECT_STATE:	3✔
195	return "Invalid object state";	3✔
196
197	case BOTAN_FFI_ERROR_OUT_OF_RANGE:	1✔
198	return "Index out of range";	1✔
199
200	case BOTAN_FFI_ERROR_NOT_IMPLEMENTED:	5✔
201	return "Not implemented";	5✔
202
203	case BOTAN_FFI_ERROR_INVALID_OBJECT:	1✔
204	return "Invalid object handle";	1✔
205
206	case BOTAN_FFI_ERROR_TLS_ERROR:	1✔
207	return "TLS error";	1✔
208
209	case BOTAN_FFI_ERROR_HTTP_ERROR:	1✔
210	return "HTTP error";	1✔
211
212	case BOTAN_FFI_ERROR_UNKNOWN_ERROR:	128✔
213	default:	128✔
214	return "Unknown error";	128✔
215	}
216	}
217
218	/*
219	* Versioning
220	*/
221	uint32_t botan_ffi_api_version() {	4✔
222	return BOTAN_HAS_FFI;	4✔
223	}
224
225	int botan_ffi_supports_api(uint32_t api_version) {	7✔
226	// This is the API introduced in 3.11
227	if(api_version == 20260203) {	7✔
228	return BOTAN_FFI_SUCCESS;
229	}
230
231	// This is the API introduced in 3.10
232	if(api_version == 20250829) {	5✔
233	return BOTAN_FFI_SUCCESS;
234	}
235
236	// This is the API introduced in 3.8
237	if(api_version == 20250506) {	5✔
238	return BOTAN_FFI_SUCCESS;
239	}
240
241	// This is the API introduced in 3.4
242	if(api_version == 20240408) {	5✔
243	return BOTAN_FFI_SUCCESS;
244	}
245
246	// This is the API introduced in 3.2
247	if(api_version == 20231009) {	5✔
248	return BOTAN_FFI_SUCCESS;
249	}
250
251	// This is the API introduced in 3.1
252	if(api_version == 20230711) {	5✔
253	return BOTAN_FFI_SUCCESS;
254	}
255
256	// This is the API introduced in 3.0
257	if(api_version == 20230403) {	5✔
258	return BOTAN_FFI_SUCCESS;
259	}
260
261	// This is the API introduced in 2.18
262	if(api_version == 20210220) {	5✔
263	return BOTAN_FFI_SUCCESS;
264	}
265
266	// This is the API introduced in 2.13
267	if(api_version == 20191214) {	5✔
268	return BOTAN_FFI_SUCCESS;
269	}
270
271	// This is the API introduced in 2.8
272	if(api_version == 20180713) {	5✔
273	return BOTAN_FFI_SUCCESS;
274	}
275
276	// This is the API introduced in 2.3
277	if(api_version == 20170815) {	4✔
278	return BOTAN_FFI_SUCCESS;
279	}
280
281	// This is the API introduced in 2.1
282	if(api_version == 20170327) {	3✔
283	return BOTAN_FFI_SUCCESS;
284	}
285
286	// This is the API introduced in 2.0
287	if(api_version == 20150515) {	2✔
288	return BOTAN_FFI_SUCCESS;	1✔
289	}
290
291	// Something else:
292	return -1;
293	}
294
295	const char* botan_version_string() {	2✔
296	return Botan::version_cstr();	2✔
297	}
298
299	uint32_t botan_version_major() {	2✔
300	return Botan::version_major();	2✔
301	}
302
303	uint32_t botan_version_minor() {	2✔
304	return Botan::version_minor();	2✔
305	}
306
307	uint32_t botan_version_patch() {	1✔
308	return Botan::version_patch();	1✔
309	}
310
311	uint32_t botan_version_datestamp() {	1✔
312	return Botan::version_datestamp();	1✔
313	}
314
315	int botan_constant_time_compare(const uint8_t* x, const uint8_t* y, size_t len) {	28✔
316	auto same = Botan::CT::is_equal(x, y, len);	28✔
317	// Return 0 if same or -1 otherwise
318	return static_cast<int>(same.select(1, 0)) - 1;	28✔
319	}
320
321	int botan_same_mem(const uint8_t* x, const uint8_t* y, size_t len) {	×
322	return botan_constant_time_compare(x, y, len);	×
323	}
324
325	int botan_scrub_mem(void* mem, size_t bytes) {	1✔
326	Botan::secure_scrub_memory(mem, bytes);	1✔
327	return BOTAN_FFI_SUCCESS;	1✔
328	}
329
330	int botan_hex_encode(const uint8_t* in, size_t len, char* out, uint32_t flags) {	3✔
331	return ffi_guard_thunk(__func__, [=]() -> int {	3✔
332	const bool uppercase = (flags & BOTAN_FFI_HEX_LOWER_CASE) == 0;	3✔
333	Botan::hex_encode(out, in, len, uppercase);	3✔
334	return BOTAN_FFI_SUCCESS;
335	});	3✔
336	}
337
338	int botan_hex_decode(const char* hex_str, size_t in_len, uint8_t* out, size_t* out_len) {	2✔
339	return ffi_guard_thunk(__func__, [=]() -> int {	2✔
340	const std::vector<uint8_t> bin = Botan::hex_decode(hex_str, in_len);	2✔
341	return Botan_FFI::write_vec_output(out, out_len, bin);	2✔
342	});	2✔
343	}
344
345	int botan_base64_encode(const uint8_t* in, size_t len, char* out, size_t* out_len) {	2✔
346	return ffi_guard_thunk(__func__, [=]() -> int {	2✔
347	const std::string base64 = Botan::base64_encode(in, len);	2✔
348	return Botan_FFI::write_str_output(out, out_len, base64);	2✔
349	});	2✔
350	}
351
352	int botan_base64_decode(const char* base64_str, size_t in_len, uint8_t* out, size_t* out_len) {	2✔
353	return ffi_guard_thunk(__func__, [=]() -> int {	2✔
354	if(*out_len < Botan::base64_decode_max_output(in_len)) {	2✔
355	*out_len = Botan::base64_decode_max_output(in_len);	1✔
356	return BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE;	1✔
357	}
358
359	*out_len = Botan::base64_decode(out, std::string(base64_str, in_len));	1✔
360	return BOTAN_FFI_SUCCESS;	1✔
361	});	2✔
362	}
363	}

randombit / botan / 21428849131

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