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1 /* ====================================================================
2  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in
13  *    the documentation and/or other materials provided with the
14  *    distribution.
15  *
16  * 3. All advertising materials mentioning features or use of this
17  *    software must display the following acknowledgment:
18  *    "This product includes software developed by the OpenSSL Project
19  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
20  *
21  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22  *    endorse or promote products derived from this software without
23  *    prior written permission. For written permission, please contact
24  *    openssl-core@openssl.org.
25  *
26  * 5. Products derived from this software may not be called "OpenSSL"
27  *    nor may "OpenSSL" appear in their names without prior written
28  *    permission of the OpenSSL Project.
29  *
30  * 6. Redistributions of any form whatsoever must retain the following
31  *    acknowledgment:
32  *    "This product includes software developed by the OpenSSL Project
33  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
34  *
35  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
39  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46  * OF THE POSSIBILITY OF SUCH DAMAGE.
47  * ====================================================================
48  *
49  * This product includes cryptographic software written by Eric Young
50  * (eay@cryptsoft.com).  This product includes software written by Tim
51  * Hudson (tjh@cryptsoft.com). */
52 
53 #ifndef OPENSSL_HEADER_BASE_H
54 #define OPENSSL_HEADER_BASE_H
55 
56 
57 // This file should be the first included by all BoringSSL headers.
58 
59 #include <stddef.h>
60 #include <stdint.h>
61 #include <sys/types.h>
62 
63 #if defined(__MINGW32__)
64 // stdio.h is needed on MinGW for __MINGW_PRINTF_FORMAT.
65 #include <stdio.h>
66 #endif
67 
68 #if defined(__APPLE__)
69 #include <TargetConditionals.h>
70 #endif
71 
72 // Include a BoringSSL-only header so consumers including this header without
73 // setting up include paths do not accidentally pick up the system
74 // opensslconf.h.
75 #include <openssl/is_boringssl.h>
76 #include <openssl/opensslconf.h>
77 
78 #if defined(BORINGSSL_PREFIX)
79 #include <boringssl_prefix_symbols.h>
80 #endif
81 
82 #if defined(__cplusplus)
83 extern "C" {
84 #endif
85 
86 
87 #if defined(__x86_64) || defined(_M_AMD64) || defined(_M_X64)
88 #define OPENSSL_64_BIT
89 #define OPENSSL_X86_64
90 #elif defined(__x86) || defined(__i386) || defined(__i386__) || defined(_M_IX86)
91 #define OPENSSL_32_BIT
92 #define OPENSSL_X86
93 #elif defined(__aarch64__)
94 #define OPENSSL_64_BIT
95 #define OPENSSL_AARCH64
96 #elif defined(__arm) || defined(__arm__) || defined(_M_ARM)
97 #define OPENSSL_32_BIT
98 #define OPENSSL_ARM
99 #elif (defined(__PPC64__) || defined(__powerpc64__)) && defined(_LITTLE_ENDIAN)
100 #define OPENSSL_64_BIT
101 #define OPENSSL_PPC64LE
102 #elif defined(__mips__) && !defined(__LP64__)
103 #define OPENSSL_32_BIT
104 #define OPENSSL_MIPS
105 #elif defined(__mips__) && defined(__LP64__)
106 #define OPENSSL_64_BIT
107 #define OPENSSL_MIPS64
108 #elif defined(__pnacl__)
109 #define OPENSSL_32_BIT
110 #define OPENSSL_PNACL
111 #elif defined(__wasm__)
112 #define OPENSSL_32_BIT
113 #elif defined(__asmjs__)
114 #define OPENSSL_32_BIT
115 #elif defined(__myriad2__)
116 #define OPENSSL_32_BIT
117 #else
118 // Note BoringSSL only supports standard 32-bit and 64-bit two's-complement,
119 // little-endian architectures. Functions will not produce the correct answer
120 // on other systems. Run the crypto_test binary, notably
121 // crypto/compiler_test.cc, before adding a new architecture.
122 #error "Unknown target CPU"
123 #endif
124 
125 #if defined(__APPLE__)
126 #define OPENSSL_APPLE
127 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
128 #define OPENSSL_IOS
129 #endif
130 #endif
131 
132 #if defined(_WIN32)
133 #define OPENSSL_WINDOWS
134 #endif
135 
136 #if defined(__linux__)
137 #define OPENSSL_LINUX
138 #endif
139 
140 #if defined(__Fuchsia__)
141 #define OPENSSL_FUCHSIA
142 #endif
143 
144 #if defined(TRUSTY)
145 #define OPENSSL_TRUSTY
146 #define OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED
147 #endif
148 
149 #if defined(__ANDROID_API__)
150 #define OPENSSL_ANDROID
151 #endif
152 
153 // BoringSSL requires platform's locking APIs to make internal global state
154 // thread-safe, including the PRNG. On some single-threaded embedded platforms,
155 // locking APIs may not exist, so this dependency may be disabled with the
156 // following build flag.
157 //
158 // IMPORTANT: Doing so means the consumer promises the library will never be
159 // used in any multi-threaded context. It causes BoringSSL to be globally
160 // thread-unsafe. Setting it inappropriately will subtly and unpredictably
161 // corrupt memory and leak secret keys.
162 //
163 // Do not set this flag on any platform where threads are possible. BoringSSL
164 // maintainers will not provide support for any consumers that do so. Changes
165 // which break such unsupported configurations will not be reverted.
166 #if !defined(OPENSSL_NO_THREADS_CORRUPT_MEMORY_AND_LEAK_SECRETS_IF_THREADED)
167 #define OPENSSL_THREADS
168 #endif
169 
170 #define OPENSSL_IS_BORINGSSL
171 #define OPENSSL_VERSION_NUMBER 0x1010007f
172 #define SSLEAY_VERSION_NUMBER OPENSSL_VERSION_NUMBER
173 
174 // BORINGSSL_API_VERSION is a positive integer that increments as BoringSSL
175 // changes over time. The value itself is not meaningful. It will be incremented
176 // whenever is convenient to coordinate an API change with consumers. This will
177 // not denote any special point in development.
178 //
179 // A consumer may use this symbol in the preprocessor to temporarily build
180 // against multiple revisions of BoringSSL at the same time. It is not
181 // recommended to do so for longer than is necessary.
182 #define BORINGSSL_API_VERSION 9
183 
184 #if defined(BORINGSSL_SHARED_LIBRARY)
185 
186 #if defined(OPENSSL_WINDOWS)
187 
188 #if defined(BORINGSSL_IMPLEMENTATION)
189 #define OPENSSL_EXPORT __declspec(dllexport)
190 #else
191 #define OPENSSL_EXPORT __declspec(dllimport)
192 #endif
193 
194 #else  // defined(OPENSSL_WINDOWS)
195 
196 #if defined(BORINGSSL_IMPLEMENTATION)
197 #define OPENSSL_EXPORT __attribute__((visibility("default")))
198 #else
199 #define OPENSSL_EXPORT
200 #endif
201 
202 #endif  // defined(OPENSSL_WINDOWS)
203 
204 #else  // defined(BORINGSSL_SHARED_LIBRARY)
205 
206 #define OPENSSL_EXPORT
207 
208 #endif  // defined(BORINGSSL_SHARED_LIBRARY)
209 
210 
211 #if defined(__GNUC__) || defined(__clang__)
212 // MinGW has two different printf implementations. Ensure the format macro
213 // matches the selected implementation. See
214 // https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/.
215 #if defined(__MINGW_PRINTF_FORMAT)
216 #define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check) \
217   __attribute__(                                                 \
218       (__format__(__MINGW_PRINTF_FORMAT, string_index, first_to_check)))
219 #else
220 #define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check) \
221   __attribute__((__format__(__printf__, string_index, first_to_check)))
222 #endif
223 #else
224 #define OPENSSL_PRINTF_FORMAT_FUNC(string_index, first_to_check)
225 #endif
226 
227 // OPENSSL_MSVC_PRAGMA emits a pragma on MSVC and nothing on other compilers.
228 #if defined(_MSC_VER)
229 #define OPENSSL_MSVC_PRAGMA(arg) __pragma(arg)
230 #else
231 #define OPENSSL_MSVC_PRAGMA(arg)
232 #endif
233 
234 #if defined(__GNUC__) || defined(__clang__)
235 #define OPENSSL_UNUSED __attribute__((unused))
236 #else
237 #define OPENSSL_UNUSED
238 #endif
239 
240 // C and C++ handle inline functions differently. In C++, an inline function is
241 // defined in just the header file, potentially emitted in multiple compilation
242 // units (in cases the compiler did not inline), but each copy must be identical
243 // to satsify ODR. In C, a non-static inline must be manually emitted in exactly
244 // one compilation unit with a separate extern inline declaration.
245 //
246 // In both languages, exported inline functions referencing file-local symbols
247 // are problematic. C forbids this altogether (though GCC and Clang seem not to
248 // enforce it). It works in C++, but ODR requires the definitions be identical,
249 // including all names in the definitions resolving to the "same entity". In
250 // practice, this is unlikely to be a problem, but an inline function that
251 // returns a pointer to a file-local symbol
252 // could compile oddly.
253 //
254 // Historically, we used static inline in headers. However, to satisfy ODR, use
255 // plain inline in C++, to allow inline consumer functions to call our header
256 // functions. Plain inline would also work better with C99 inline, but that is
257 // not used much in practice, extern inline is tedious, and there are conflicts
258 // with the old gnu89 model:
259 // https://stackoverflow.com/questions/216510/extern-inline
260 #if defined(__cplusplus)
261 #define OPENSSL_INLINE inline
262 #else
263 // Add OPENSSL_UNUSED so that, should an inline function be emitted via macro
264 // (e.g. a |STACK_OF(T)| implementation) in a source file without tripping
265 // clang's -Wunused-function.
266 #define OPENSSL_INLINE static inline OPENSSL_UNUSED
267 #endif
268 
269 #if defined(BORINGSSL_UNSAFE_FUZZER_MODE) && \
270     !defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE)
271 #define BORINGSSL_UNSAFE_DETERMINISTIC_MODE
272 #endif
273 
274 #if defined(__has_feature)
275 #if __has_feature(address_sanitizer)
276 #define OPENSSL_ASAN
277 #endif
278 #if __has_feature(thread_sanitizer)
279 #define OPENSSL_TSAN
280 #endif
281 #if __has_feature(memory_sanitizer)
282 #define OPENSSL_MSAN
283 #define OPENSSL_ASM_INCOMPATIBLE
284 #endif
285 #endif
286 
287 #if defined(OPENSSL_ASM_INCOMPATIBLE)
288 #undef OPENSSL_ASM_INCOMPATIBLE
289 #if !defined(OPENSSL_NO_ASM)
290 #define OPENSSL_NO_ASM
291 #endif
292 #endif  // OPENSSL_ASM_INCOMPATIBLE
293 
294 // CRYPTO_THREADID is a dummy value.
295 typedef int CRYPTO_THREADID;
296 
297 typedef int ASN1_BOOLEAN;
298 typedef int ASN1_NULL;
299 typedef struct ASN1_ITEM_st ASN1_ITEM;
300 typedef struct asn1_object_st ASN1_OBJECT;
301 typedef struct asn1_pctx_st ASN1_PCTX;
302 typedef struct asn1_string_st ASN1_BIT_STRING;
303 typedef struct asn1_string_st ASN1_BMPSTRING;
304 typedef struct asn1_string_st ASN1_ENUMERATED;
305 typedef struct asn1_string_st ASN1_GENERALIZEDTIME;
306 typedef struct asn1_string_st ASN1_GENERALSTRING;
307 typedef struct asn1_string_st ASN1_IA5STRING;
308 typedef struct asn1_string_st ASN1_INTEGER;
309 typedef struct asn1_string_st ASN1_OCTET_STRING;
310 typedef struct asn1_string_st ASN1_PRINTABLESTRING;
311 typedef struct asn1_string_st ASN1_STRING;
312 typedef struct asn1_string_st ASN1_T61STRING;
313 typedef struct asn1_string_st ASN1_TIME;
314 typedef struct asn1_string_st ASN1_UNIVERSALSTRING;
315 typedef struct asn1_string_st ASN1_UTCTIME;
316 typedef struct asn1_string_st ASN1_UTF8STRING;
317 typedef struct asn1_string_st ASN1_VISIBLESTRING;
318 typedef struct asn1_type_st ASN1_TYPE;
319 typedef struct AUTHORITY_KEYID_st AUTHORITY_KEYID;
320 typedef struct BASIC_CONSTRAINTS_st BASIC_CONSTRAINTS;
321 typedef struct DIST_POINT_st DIST_POINT;
322 typedef struct DSA_SIG_st DSA_SIG;
323 typedef struct ISSUING_DIST_POINT_st ISSUING_DIST_POINT;
324 typedef struct NAME_CONSTRAINTS_st NAME_CONSTRAINTS;
325 typedef struct Netscape_spkac_st NETSCAPE_SPKAC;
326 typedef struct Netscape_spki_st NETSCAPE_SPKI;
327 typedef struct RIPEMD160state_st RIPEMD160_CTX;
328 typedef struct X509_POLICY_CACHE_st X509_POLICY_CACHE;
329 typedef struct X509_POLICY_LEVEL_st X509_POLICY_LEVEL;
330 typedef struct X509_POLICY_NODE_st X509_POLICY_NODE;
331 typedef struct X509_POLICY_TREE_st X509_POLICY_TREE;
332 typedef struct X509_VERIFY_PARAM_st X509_VERIFY_PARAM;
333 typedef struct X509_algor_st X509_ALGOR;
334 typedef struct X509_crl_info_st X509_CRL_INFO;
335 typedef struct X509_crl_st X509_CRL;
336 typedef struct X509_extension_st X509_EXTENSION;
337 typedef struct X509_info_st X509_INFO;
338 typedef struct X509_name_entry_st X509_NAME_ENTRY;
339 typedef struct X509_name_st X509_NAME;
340 typedef struct X509_pubkey_st X509_PUBKEY;
341 typedef struct X509_req_info_st X509_REQ_INFO;
342 typedef struct X509_req_st X509_REQ;
343 typedef struct X509_sig_st X509_SIG;
344 typedef struct X509_val_st X509_VAL;
345 typedef struct bignum_ctx BN_CTX;
346 typedef struct bignum_st BIGNUM;
347 typedef struct bio_method_st BIO_METHOD;
348 typedef struct bio_st BIO;
349 typedef struct bn_gencb_st BN_GENCB;
350 typedef struct bn_mont_ctx_st BN_MONT_CTX;
351 typedef struct buf_mem_st BUF_MEM;
352 typedef struct cbb_st CBB;
353 typedef struct cbs_st CBS;
354 typedef struct cmac_ctx_st CMAC_CTX;
355 typedef struct conf_st CONF;
356 typedef struct conf_value_st CONF_VALUE;
357 typedef struct crypto_buffer_pool_st CRYPTO_BUFFER_POOL;
358 typedef struct crypto_buffer_st CRYPTO_BUFFER;
359 typedef struct dh_st DH;
360 typedef struct dsa_st DSA;
361 typedef struct ec_group_st EC_GROUP;
362 typedef struct ec_key_st EC_KEY;
363 typedef struct ec_point_st EC_POINT;
364 typedef struct ecdsa_method_st ECDSA_METHOD;
365 typedef struct ecdsa_sig_st ECDSA_SIG;
366 typedef struct engine_st ENGINE;
367 typedef struct env_md_ctx_st EVP_MD_CTX;
368 typedef struct env_md_st EVP_MD;
369 typedef struct evp_aead_st EVP_AEAD;
370 typedef struct evp_cipher_ctx_st EVP_CIPHER_CTX;
371 typedef struct evp_cipher_st EVP_CIPHER;
372 typedef struct evp_encode_ctx_st EVP_ENCODE_CTX;
373 typedef struct evp_pkey_asn1_method_st EVP_PKEY_ASN1_METHOD;
374 typedef struct evp_pkey_ctx_st EVP_PKEY_CTX;
375 typedef struct evp_pkey_method_st EVP_PKEY_METHOD;
376 typedef struct evp_pkey_st EVP_PKEY;
377 typedef struct hmac_ctx_st HMAC_CTX;
378 typedef struct md4_state_st MD4_CTX;
379 typedef struct md5_state_st MD5_CTX;
380 typedef struct ossl_init_settings_st OPENSSL_INIT_SETTINGS;
381 typedef struct pkcs12_st PKCS12;
382 typedef struct pkcs8_priv_key_info_st PKCS8_PRIV_KEY_INFO;
383 typedef struct private_key_st X509_PKEY;
384 typedef struct rand_meth_st RAND_METHOD;
385 typedef struct rc4_key_st RC4_KEY;
386 typedef struct rsa_meth_st RSA_METHOD;
387 typedef struct rsa_st RSA;
388 typedef struct sha256_state_st SHA256_CTX;
389 typedef struct sha512_state_st SHA512_CTX;
390 typedef struct sha_state_st SHA_CTX;
391 typedef struct spake2_ctx_st SPAKE2_CTX;
392 typedef struct srtp_protection_profile_st SRTP_PROTECTION_PROFILE;
393 typedef struct ssl_cipher_st SSL_CIPHER;
394 typedef struct ssl_ctx_st SSL_CTX;
395 typedef struct ssl_method_st SSL_METHOD;
396 typedef struct ssl_private_key_method_st SSL_PRIVATE_KEY_METHOD;
397 typedef struct ssl_quic_method_st SSL_QUIC_METHOD;
398 typedef struct ssl_session_st SSL_SESSION;
399 typedef struct ssl_st SSL;
400 typedef struct ssl_ticket_aead_method_st SSL_TICKET_AEAD_METHOD;
401 typedef struct st_ERR_FNS ERR_FNS;
402 typedef struct v3_ext_ctx X509V3_CTX;
403 typedef struct x509_attributes_st X509_ATTRIBUTE;
404 typedef struct x509_cert_aux_st X509_CERT_AUX;
405 typedef struct x509_cinf_st X509_CINF;
406 typedef struct x509_crl_method_st X509_CRL_METHOD;
407 typedef struct x509_lookup_st X509_LOOKUP;
408 typedef struct x509_revoked_st X509_REVOKED;
409 typedef struct x509_st X509;
410 typedef struct x509_store_ctx_st X509_STORE_CTX;
411 typedef struct x509_store_st X509_STORE;
412 typedef struct x509_trust_st X509_TRUST;
413 
414 typedef void *OPENSSL_BLOCK;
415 
416 
417 #if defined(__cplusplus)
418 }  // extern C
419 #elif !defined(BORINGSSL_NO_CXX)
420 #define BORINGSSL_NO_CXX
421 #endif
422 
423 #if defined(BORINGSSL_PREFIX)
424 #define BSSL_NAMESPACE_BEGIN \
425   namespace bssl {           \
426   inline namespace BORINGSSL_PREFIX {
427 #define BSSL_NAMESPACE_END \
428   }                        \
429   }
430 #else
431 #define BSSL_NAMESPACE_BEGIN namespace bssl {
432 #define BSSL_NAMESPACE_END }
433 #endif
434 
435 // MSVC doesn't set __cplusplus to 201103 to indicate C++11 support (see
436 // https://connect.microsoft.com/VisualStudio/feedback/details/763051/a-value-of-predefined-macro-cplusplus-is-still-199711l)
437 // so MSVC is just assumed to support C++11.
438 #if !defined(BORINGSSL_NO_CXX) && __cplusplus < 201103L && !defined(_MSC_VER)
439 #define BORINGSSL_NO_CXX
440 #endif
441 
442 #if !defined(BORINGSSL_NO_CXX)
443 
444 extern "C++" {
445 
446 #include <memory>
447 
448 // STLPort, used by some Android consumers, not have std::unique_ptr.
449 #if defined(_STLPORT_VERSION)
450 #define BORINGSSL_NO_CXX
451 #endif
452 
453 }  // extern C++
454 #endif  // !BORINGSSL_NO_CXX
455 
456 #if defined(BORINGSSL_NO_CXX)
457 
458 #define BORINGSSL_MAKE_DELETER(type, deleter)
459 #define BORINGSSL_MAKE_UP_REF(type, up_ref_func)
460 
461 #else
462 
463 extern "C++" {
464 
465 BSSL_NAMESPACE_BEGIN
466 
467 namespace internal {
468 
469 // The Enable parameter is ignored and only exists so specializations can use
470 // SFINAE.
471 template <typename T, typename Enable = void>
472 struct DeleterImpl {};
473 
474 template <typename T>
475 struct Deleter {
operatorDeleter476   void operator()(T *ptr) {
477     // Rather than specialize Deleter for each type, we specialize
478     // DeleterImpl. This allows bssl::UniquePtr<T> to be used while only
479     // including base.h as long as the destructor is not emitted. This matches
480     // std::unique_ptr's behavior on forward-declared types.
481     //
482     // DeleterImpl itself is specialized in the corresponding module's header
483     // and must be included to release an object. If not included, the compiler
484     // will error that DeleterImpl<T> does not have a method Free.
485     DeleterImpl<T>::Free(ptr);
486   }
487 };
488 
489 template <typename T, typename CleanupRet, void (*init)(T *),
490           CleanupRet (*cleanup)(T *)>
491 class StackAllocated {
492  public:
StackAllocated()493   StackAllocated() { init(&ctx_); }
~StackAllocated()494   ~StackAllocated() { cleanup(&ctx_); }
495 
496   StackAllocated(const StackAllocated<T, CleanupRet, init, cleanup> &) = delete;
497   T& operator=(const StackAllocated<T, CleanupRet, init, cleanup> &) = delete;
498 
get()499   T *get() { return &ctx_; }
get()500   const T *get() const { return &ctx_; }
501 
502   T *operator->() { return &ctx_; }
503   const T *operator->() const { return &ctx_; }
504 
Reset()505   void Reset() {
506     cleanup(&ctx_);
507     init(&ctx_);
508   }
509 
510  private:
511   T ctx_;
512 };
513 
514 }  // namespace internal
515 
516 #define BORINGSSL_MAKE_DELETER(type, deleter)     \
517   namespace internal {                            \
518   template <>                                     \
519   struct DeleterImpl<type> {                      \
520     static void Free(type *ptr) { deleter(ptr); } \
521   };                                              \
522   }
523 
524 // Holds ownership of heap-allocated BoringSSL structures. Sample usage:
525 //   bssl::UniquePtr<RSA> rsa(RSA_new());
526 //   bssl::UniquePtr<BIO> bio(BIO_new(BIO_s_mem()));
527 template <typename T>
528 using UniquePtr = std::unique_ptr<T, internal::Deleter<T>>;
529 
530 #define BORINGSSL_MAKE_UP_REF(type, up_ref_func)             \
531   inline UniquePtr<type> UpRef(type *v) {                    \
532     if (v != nullptr) {                                      \
533       up_ref_func(v);                                        \
534     }                                                        \
535     return UniquePtr<type>(v);                               \
536   }                                                          \
537                                                              \
538   inline UniquePtr<type> UpRef(const UniquePtr<type> &ptr) { \
539     return UpRef(ptr.get());                                 \
540   }
541 
542 BSSL_NAMESPACE_END
543 
544 }  // extern C++
545 
546 #endif  // !BORINGSSL_NO_CXX
547 
548 #endif  // OPENSSL_HEADER_BASE_H
549