[thirdparty/openssl.git] / include / openssl / trace.h

/*
 * Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OPENSSL_TRACE_H
# define OPENSSL_TRACE_H
# pragma once

# include <stdarg.h>

# include <openssl/bio.h>

# ifdef  __cplusplus
extern "C" {
# endif

/*
 * TRACE CATEGORIES
 */

/*
 * The trace messages of the OpenSSL libraries are organized into different
 * categories. For every trace category, the application can register a separate
 * tracer callback. When a callback is registered, a so called trace channel is
 * created for this category. This channel consists essentially of an internal
 * BIO which sends all trace output it receives to the registered application
 * callback.
 *
 * The ALL category can be used as a fallback category to register a single
 * channel which receives the output from all categories. However, if the
 * application intends to print the trace channel name in the line prefix,
 * it is better to register channels for all categories separately.
 * (This is how the openssl application does it.)
 */
# define OSSL_TRACE_CATEGORY_ALL                 0 /* The fallback */
# define OSSL_TRACE_CATEGORY_TRACE               1
# define OSSL_TRACE_CATEGORY_INIT                2
# define OSSL_TRACE_CATEGORY_TLS                 3
# define OSSL_TRACE_CATEGORY_TLS_CIPHER          4
# define OSSL_TRACE_CATEGORY_CONF                5
# define OSSL_TRACE_CATEGORY_ENGINE_TABLE        6
# define OSSL_TRACE_CATEGORY_ENGINE_REF_COUNT    7
# define OSSL_TRACE_CATEGORY_PKCS5V2             8
# define OSSL_TRACE_CATEGORY_PKCS12_KEYGEN       9
# define OSSL_TRACE_CATEGORY_PKCS12_DECRYPT     10
# define OSSL_TRACE_CATEGORY_X509V3_POLICY      11
# define OSSL_TRACE_CATEGORY_BN_CTX             12
# define OSSL_TRACE_CATEGORY_CMP                13
# define OSSL_TRACE_CATEGORY_STORE              14
# define OSSL_TRACE_CATEGORY_DECODER            15
# define OSSL_TRACE_CATEGORY_ENCODER            16
# define OSSL_TRACE_CATEGORY_REF_COUNT          17
# define OSSL_TRACE_CATEGORY_HTTP               18
/* Count of available categories. */
# define OSSL_TRACE_CATEGORY_NUM                19
/* KEEP THIS LIST IN SYNC with trace_categories[] in crypto/trace.c */

/* Returns the trace category number for the given |name| */
int OSSL_trace_get_category_num(const char *name);

/* Returns the trace category name for the given |num| */
const char *OSSL_trace_get_category_name(int num);

/*
 * TRACE CONSUMERS
 */

/*
 * Enables tracing for the given |category| by providing a BIO sink
 * as |channel|. If a null pointer is passed as |channel|, an existing
 * trace channel is removed and tracing for the category is disabled.
 *
 * Returns 1 on success and 0 on failure
 */
int OSSL_trace_set_channel(int category, BIO* channel);

/*
 * Attach a prefix and a suffix to the given |category|, to be printed at the
 * beginning and at the end of each trace output group, i.e. when
 * OSSL_trace_begin() and OSSL_trace_end() are called.
 * If a null pointer is passed as argument, the existing prefix or suffix is
 * removed.
 *
 * They return 1 on success and 0 on failure
 */
int OSSL_trace_set_prefix(int category, const char *prefix);
int OSSL_trace_set_suffix(int category, const char *suffix);

/*
 * OSSL_trace_cb is the type tracing callback provided by the application.
 * It MUST return the number of bytes written, or 0 on error (in other words,
 * it can never write zero bytes).
 *
 * The |buffer| will always contain text, which may consist of several lines.
 * The |data| argument points to whatever data was provided by the application
 * when registering the tracer function.
 *
 * The |category| number is given, as well as a |cmd| number, described below.
 */
typedef size_t (*OSSL_trace_cb)(const char *buffer, size_t count,
                                int category, int cmd, void *data);
/*
 * Possible |cmd| numbers.
 */
# define OSSL_TRACE_CTRL_BEGIN  0
# define OSSL_TRACE_CTRL_WRITE  1
# define OSSL_TRACE_CTRL_END    2

/*
 * Enables tracing for the given |category| by creating an internal
 * trace channel which sends the output to the given |callback|.
 * If a null pointer is passed as callback, an existing trace channel
 * is removed and tracing for the category is disabled.
 *
 * NOTE: OSSL_trace_set_channel() and OSSL_trace_set_callback() are mutually
 *       exclusive.
 *
 * Returns 1 on success and 0 on failure
 */
int OSSL_trace_set_callback(int category, OSSL_trace_cb callback, void *data);

/*
 * TRACE PRODUCERS
 */

/*
 * Returns 1 if tracing for the specified category is enabled, otherwise 0
 */
int OSSL_trace_enabled(int category);

/*
 * Wrap a group of tracing output calls.  OSSL_trace_begin() locks tracing and
 * returns the trace channel associated with the given category, or NULL if no
 * channel is associated with the category.  OSSL_trace_end() unlocks tracing.
 *
 * Usage:
 *
 *    BIO *out;
 *    if ((out = OSSL_trace_begin(category)) != NULL) {
 *        ...
 *        BIO_fprintf(out, ...);
 *        ...
 *        OSSL_trace_end(category, out);
 *    }
 *
 * See also the convenience macros OSSL_TRACE_BEGIN and OSSL_TRACE_END below.
 */
BIO *OSSL_trace_begin(int category);
void OSSL_trace_end(int category, BIO *channel);

/*
 * OSSL_TRACE* Convenience Macros
 */

/*
 * When the tracing feature is disabled, these macros are defined to
 * produce dead code, which a good compiler should eliminate.
 */

/*
 * OSSL_TRACE_BEGIN, OSSL_TRACE_END - Define a Trace Group
 *
 * These two macros can be used to create a block which is executed only
 * if the corresponding trace category is enabled. Inside this block, a
 * local variable named |trc_out| is defined, which points to the channel
 * associated with the given trace category.
 *
 * Usage: (using 'TLS' as an example category)
 *
 *     OSSL_TRACE_BEGIN(TLS) {
 *
 *         BIO_fprintf(trc_out, ... );
 *
 *     } OSSL_TRACE_END(TLS);
 *
 *
 * This expands to the following code
 *
 *     do {
 *         BIO *trc_out = OSSL_trace_begin(OSSL_TRACE_CATEGORY_TLS);
 *         if (trc_out != NULL) {
 *             ...
 *             BIO_fprintf(trc_out, ...);
 *         }
 *         OSSL_trace_end(OSSL_TRACE_CATEGORY_TLS, trc_out);
 *     } while (0);
 *
 * The use of the inner '{...}' group and the trailing ';' is enforced
 * by the definition of the macros in order to make the code look as much
 * like C code as possible.
 *
 * Before returning from inside the trace block, it is necessary to
 * call OSSL_TRACE_CANCEL(category).
 */

# if !defined OPENSSL_NO_TRACE && !defined FIPS_MODULE

#  define OSSL_TRACE_BEGIN(category) \
    do { \
        BIO *trc_out = OSSL_trace_begin(OSSL_TRACE_CATEGORY_##category); \
 \
        if (trc_out != NULL)

#  define OSSL_TRACE_END(category) \
        OSSL_trace_end(OSSL_TRACE_CATEGORY_##category, trc_out); \
    } while (0)

#  define OSSL_TRACE_CANCEL(category) \
        OSSL_trace_end(OSSL_TRACE_CATEGORY_##category, trc_out) \

# else

#  define OSSL_TRACE_BEGIN(category)           \
    do {                                        \
        BIO *trc_out = NULL;                    \
        if (0)

#  define OSSL_TRACE_END(category)             \
    } while(0)

#  define OSSL_TRACE_CANCEL(category)          \
    ((void)0)

# endif

/*
 * OSSL_TRACE_ENABLED() - Check whether tracing is enabled for |category|
 *
 * Usage:
 *
 *     if (OSSL_TRACE_ENABLED(TLS)) {
 *         ...
 *     }
 */
# if !defined OPENSSL_NO_TRACE && !defined FIPS_MODULE

#  define OSSL_TRACE_ENABLED(category) \
    OSSL_trace_enabled(OSSL_TRACE_CATEGORY_##category)

# else

#  define OSSL_TRACE_ENABLED(category) (0)

# endif

/*
 * OSSL_TRACE*() - OneShot Trace Macros
 *
 * These macros are intended to produce a simple printf-style trace output.
 * Unfortunately, C90 macros don't support variable arguments, so the
 * "vararg" OSSL_TRACEV() macro has a rather weird usage pattern:
 *
 *    OSSL_TRACEV(category, (trc_out, "format string", ...args...));
 *
 * Where 'channel' is the literal symbol of this name, not a variable.
 * For that reason, it is currently not intended to be used directly,
 * but only as helper macro for the other oneshot trace macros
 * OSSL_TRACE(), OSSL_TRACE1(), OSSL_TRACE2(), ...
 *
 * Usage:
 *
 *    OSSL_TRACE(INIT, "Hello world!\n");
 *    OSSL_TRACE1(TLS, "The answer is %d\n", 42);
 *    OSSL_TRACE2(TLS, "The ultimate question to answer %d is '%s'\n",
 *                42, "What do you get when you multiply six by nine?");
 */

# if !defined OPENSSL_NO_TRACE && !defined FIPS_MODULE

#  define OSSL_TRACEV(category, args) \
    OSSL_TRACE_BEGIN(category) \
        BIO_printf args; \
    OSSL_TRACE_END(category)

# else

#  define OSSL_TRACEV(category, args) ((void)0)

# endif

# define OSSL_TRACE(category, text) \
    OSSL_TRACEV(category, (trc_out, "%s", text))

# define OSSL_TRACE1(category, format, arg1) \
    OSSL_TRACEV(category, (trc_out, format, arg1))
# define OSSL_TRACE2(category, format, arg1, arg2) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2))
# define OSSL_TRACE3(category, format, arg1, arg2, arg3) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3))
# define OSSL_TRACE4(category, format, arg1, arg2, arg3, arg4) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4))
# define OSSL_TRACE5(category, format, arg1, arg2, arg3, arg4, arg5) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5))
# define OSSL_TRACE6(category, format, arg1, arg2, arg3, arg4, arg5, arg6) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6))
# define OSSL_TRACE7(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7))
# define OSSL_TRACE8(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8))
# define OSSL_TRACE9(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9))

#define OSSL_TRACE_STRING_MAX 80
int OSSL_trace_string(BIO *out, int text, int full,
                      const unsigned char *data, size_t size);
#define OSSL_TRACE_STRING(category, text, full, data, len) \
    OSSL_TRACE_BEGIN(category) { \
        OSSL_trace_string(trc_out, text, full, data, len);  \
    } OSSL_TRACE_END(category)

# ifdef  __cplusplus
}
# endif

#endif
Commit	Line	Data
2390c573	1	/*
da1c088f	2	* Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.
2390c573 RL	3	*
	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
	8	*/
	9
ae4186b0 DMSP	10	#ifndef OPENSSL_TRACE_H
ae4186b0 DMSP	11	# define OPENSSL_TRACE_H
d59068bd	12	# pragma once
2390c573 RL	13
	14	# include <stdarg.h>
	15
	16	# include <openssl/bio.h>
	17
	18	# ifdef __cplusplus
	19	extern "C" {
	20	# endif
	21
	22	/*
	23	* TRACE CATEGORIES
	24	*/
	25
	26	/*
	27	* The trace messages of the OpenSSL libraries are organized into different
	28	* categories. For every trace category, the application can register a separate
	29	* tracer callback. When a callback is registered, a so called trace channel is
	30	* created for this category. This channel consists essentially of an internal
	31	* BIO which sends all trace output it receives to the registered application
	32	* callback.
	33	*
3a8269b3	34	* The ALL category can be used as a fallback category to register a single
02bd2d7f DMSP	35	* channel which receives the output from all categories. However, if the
	36	* application intends to print the trace channel name in the line prefix,
	37	* it is better to register channels for all categories separately.
	38	* (This is how the openssl application does it.)
2390c573	39	*/
3a8269b3	40	# define OSSL_TRACE_CATEGORY_ALL 0 /* The fallback */
3b9e1a39 RL	41	# define OSSL_TRACE_CATEGORY_TRACE 1
	42	# define OSSL_TRACE_CATEGORY_INIT 2
	43	# define OSSL_TRACE_CATEGORY_TLS 3
	44	# define OSSL_TRACE_CATEGORY_TLS_CIPHER 4
bc362b9b	45	# define OSSL_TRACE_CATEGORY_CONF 5
78bd646b TM	46	# define OSSL_TRACE_CATEGORY_ENGINE_TABLE 6
78bd646b TM	47	# define OSSL_TRACE_CATEGORY_ENGINE_REF_COUNT 7
3b9e1a39 RL	48	# define OSSL_TRACE_CATEGORY_PKCS5V2 8
	49	# define OSSL_TRACE_CATEGORY_PKCS12_KEYGEN 9
	50	# define OSSL_TRACE_CATEGORY_PKCS12_DECRYPT 10
	51	# define OSSL_TRACE_CATEGORY_X509V3_POLICY 11
	52	# define OSSL_TRACE_CATEGORY_BN_CTX 12
7960dbec	53	# define OSSL_TRACE_CATEGORY_CMP 13
2897b009	54	# define OSSL_TRACE_CATEGORY_STORE 14
de5008a4	55	# define OSSL_TRACE_CATEGORY_DECODER 15
0b9f90f5	56	# define OSSL_TRACE_CATEGORY_ENCODER 16
a935791d	57	# define OSSL_TRACE_CATEGORY_REF_COUNT 17
e8fdb060	58	# define OSSL_TRACE_CATEGORY_HTTP 18
a935791d	59	/* Count of available categories. */
e8fdb060 DDO	60	# define OSSL_TRACE_CATEGORY_NUM 19
e8fdb060 DDO	61	/* KEEP THIS LIST IN SYNC with trace_categories[] in crypto/trace.c */
2390c573 RL	62
	63	/* Returns the trace category number for the given \|name\| */
	64	int OSSL_trace_get_category_num(const char *name);
	65
	66	/* Returns the trace category name for the given \|num\| */
	67	const char *OSSL_trace_get_category_name(int num);
	68
	69	/*
	70	* TRACE CONSUMERS
	71	*/
	72
	73	/*
	74	* Enables tracing for the given \|category\| by providing a BIO sink
	75	* as \|channel\|. If a null pointer is passed as \|channel\|, an existing
	76	* trace channel is removed and tracing for the category is disabled.
	77	*
	78	* Returns 1 on success and 0 on failure
	79	*/
	80	int OSSL_trace_set_channel(int category, BIO* channel);
	81
	82	/*
	83	* Attach a prefix and a suffix to the given \|category\|, to be printed at the
	84	* beginning and at the end of each trace output group, i.e. when
	85	* OSSL_trace_begin() and OSSL_trace_end() are called.
	86	* If a null pointer is passed as argument, the existing prefix or suffix is
	87	* removed.
	88	*
	89	* They return 1 on success and 0 on failure
	90	*/
	91	int OSSL_trace_set_prefix(int category, const char *prefix);
	92	int OSSL_trace_set_suffix(int category, const char *suffix);
	93
	94	/*
	95	* OSSL_trace_cb is the type tracing callback provided by the application.
	96	* It MUST return the number of bytes written, or 0 on error (in other words,
	97	* it can never write zero bytes).
	98	*
	99	* The \|buffer\| will always contain text, which may consist of several lines.
	100	* The \|data\| argument points to whatever data was provided by the application
	101	* when registering the tracer function.
	102	*
	103	* The \|category\| number is given, as well as a \|cmd\| number, described below.
	104	*/
	105	typedef size_t (OSSL_trace_cb)(const char buffer, size_t count,
	106	int category, int cmd, void *data);
	107	/*
	108	* Possible \|cmd\| numbers.
	109	*/
	110	# define OSSL_TRACE_CTRL_BEGIN 0
13d06925	111	# define OSSL_TRACE_CTRL_WRITE 1
2390c573 RL	112	# define OSSL_TRACE_CTRL_END 2
	113
	114	/*
	115	* Enables tracing for the given \|category\| by creating an internal
	116	* trace channel which sends the output to the given \|callback\|.
	117	* If a null pointer is passed as callback, an existing trace channel
	118	* is removed and tracing for the category is disabled.
	119	*
	120	* NOTE: OSSL_trace_set_channel() and OSSL_trace_set_callback() are mutually
	121	* exclusive.
	122	*
	123	* Returns 1 on success and 0 on failure
	124	*/
	125	int OSSL_trace_set_callback(int category, OSSL_trace_cb callback, void *data);
	126
	127	/*
	128	* TRACE PRODUCERS
	129	*/
	130
	131	/*
	132	* Returns 1 if tracing for the specified category is enabled, otherwise 0
	133	*/
	134	int OSSL_trace_enabled(int category);
	135
	136	/*
	137	* Wrap a group of tracing output calls. OSSL_trace_begin() locks tracing and
	138	* returns the trace channel associated with the given category, or NULL if no
	139	* channel is associated with the category. OSSL_trace_end() unlocks tracing.
	140	*
	141	* Usage:
	142	*
	143	* BIO *out;
	144	* if ((out = OSSL_trace_begin(category)) != NULL) {
	145	* ...
	146	* BIO_fprintf(out, ...);
	147	* ...
	148	* OSSL_trace_end(category, out);
	149	* }
	150	*
	151	* See also the convenience macros OSSL_TRACE_BEGIN and OSSL_TRACE_END below.
	152	*/
	153	BIO *OSSL_trace_begin(int category);
	154	void OSSL_trace_end(int category, BIO *channel);
	155
	156	/*
	157	* OSSL_TRACE* Convenience Macros
	158	*/
	159
	160	/*
	161	* When the tracing feature is disabled, these macros are defined to
	162	* produce dead code, which a good compiler should eliminate.
	163	*/
	164
	165	/*
	166	* OSSL_TRACE_BEGIN, OSSL_TRACE_END - Define a Trace Group
	167	*
	168	* These two macros can be used to create a block which is executed only
	169	* if the corresponding trace category is enabled. Inside this block, a
	170	* local variable named \|trc_out\| is defined, which points to the channel
	171	* associated with the given trace category.
	172	*
	173	* Usage: (using 'TLS' as an example category)
	174	*
	175	* OSSL_TRACE_BEGIN(TLS) {
176	*
177	* BIO_fprintf(trc_out, ... );
178	*
179	* } OSSL_TRACE_END(TLS);
180	*
181	*
182	* This expands to the following code
183	*
184	* do {
185	* BIO *trc_out = OSSL_trace_begin(OSSL_TRACE_CATEGORY_TLS);
186	* if (trc_out != NULL) {
187	* ...
188	* BIO_fprintf(trc_out, ...);
189	* }
190	* OSSL_trace_end(OSSL_TRACE_CATEGORY_TLS, trc_out);
191	* } while (0);
192	*
193	* The use of the inner '{...}' group and the trailing ';' is enforced
194	* by the definition of the macros in order to make the code look as much
195	* like C code as possible.
196	*
197	* Before returning from inside the trace block, it is necessary to
198	* call OSSL_TRACE_CANCEL(category).
199	*/
200
c29b71c3	201	# if !defined OPENSSL_NO_TRACE && !defined FIPS_MODULE
16a9d374 RL	202
16a9d374 RL	203	# define OSSL_TRACE_BEGIN(category) \
2390c573 RL	204	do { \
	205	BIO *trc_out = OSSL_trace_begin(OSSL_TRACE_CATEGORY_##category); \
	206	\
	207	if (trc_out != NULL)
	208
16a9d374	209	# define OSSL_TRACE_END(category) \
2390c573 RL	210	OSSL_trace_end(OSSL_TRACE_CATEGORY_##category, trc_out); \
	211	} while (0)
	212
16a9d374	213	# define OSSL_TRACE_CANCEL(category) \
2390c573 RL	214	OSSL_trace_end(OSSL_TRACE_CATEGORY_##category, trc_out) \
2390c573 RL	215
16a9d374 RL	216	# else
	217
	218	# define OSSL_TRACE_BEGIN(category) \
	219	do { \
	220	BIO *trc_out = NULL; \
	221	if (0)
	222
	223	# define OSSL_TRACE_END(category) \
	224	} while(0)
	225
	226	# define OSSL_TRACE_CANCEL(category) \
	227	((void)0)
	228
	229	# endif
	230
2390c573 RL	231	/*
	232	* OSSL_TRACE_ENABLED() - Check whether tracing is enabled for \|category\|
	233	*
	234	* Usage:
	235	*
	236	* if (OSSL_TRACE_ENABLED(TLS)) {
	237	* ...
	238	* }
	239	*/
c29b71c3	240	# if !defined OPENSSL_NO_TRACE && !defined FIPS_MODULE
2390c573	241
16a9d374	242	# define OSSL_TRACE_ENABLED(category) \
2390c573 RL	243	OSSL_trace_enabled(OSSL_TRACE_CATEGORY_##category)
2390c573 RL	244
16a9d374 RL	245	# else
	246
	247	# define OSSL_TRACE_ENABLED(category) (0)
	248
	249	# endif
	250
2390c573 RL	251	/*
	252	* OSSL_TRACE*() - OneShot Trace Macros
	253	*
	254	* These macros are intended to produce a simple printf-style trace output.
	255	* Unfortunately, C90 macros don't support variable arguments, so the
	256	* "vararg" OSSL_TRACEV() macro has a rather weird usage pattern:
	257	*
	258	* OSSL_TRACEV(category, (trc_out, "format string", ...args...));
	259	*
	260	* Where 'channel' is the literal symbol of this name, not a variable.
	261	* For that reason, it is currently not intended to be used directly,
	262	* but only as helper macro for the other oneshot trace macros
	263	* OSSL_TRACE(), OSSL_TRACE1(), OSSL_TRACE2(), ...
	264	*
	265	* Usage:
	266	*
	267	* OSSL_TRACE(INIT, "Hello world!\n");
	268	* OSSL_TRACE1(TLS, "The answer is %d\n", 42);
	269	* OSSL_TRACE2(TLS, "The ultimate question to answer %d is '%s'\n",
	270	* 42, "What do you get when you multiply six by nine?");
	271	*/
	272
454d6927 TM	273	# if !defined OPENSSL_NO_TRACE && !defined FIPS_MODULE
	274
	275	# define OSSL_TRACEV(category, args) \
2390c573 RL	276	OSSL_TRACE_BEGIN(category) \
	277	BIO_printf args; \
	278	OSSL_TRACE_END(category)
	279
454d6927 TM	280	# else
	281
	282	# define OSSL_TRACEV(category, args) ((void)0)
	283
	284	# endif
	285
2390c573 RL	286	# define OSSL_TRACE(category, text) \
	287	OSSL_TRACEV(category, (trc_out, "%s", text))
	288
	289	# define OSSL_TRACE1(category, format, arg1) \
	290	OSSL_TRACEV(category, (trc_out, format, arg1))
	291	# define OSSL_TRACE2(category, format, arg1, arg2) \
	292	OSSL_TRACEV(category, (trc_out, format, arg1, arg2))
	293	# define OSSL_TRACE3(category, format, arg1, arg2, arg3) \
	294	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3))
	295	# define OSSL_TRACE4(category, format, arg1, arg2, arg3, arg4) \
	296	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4))
	297	# define OSSL_TRACE5(category, format, arg1, arg2, arg3, arg4, arg5) \
	298	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5))
	299	# define OSSL_TRACE6(category, format, arg1, arg2, arg3, arg4, arg5, arg6) \
	300	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6))
	301	# define OSSL_TRACE7(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
	302	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7))
	303	# define OSSL_TRACE8(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
	304	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8))
4e0383d8	305	# define OSSL_TRACE9(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9) \
2390c573 RL	306	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9))
2390c573 RL	307
0243e821 DDO	308	#define OSSL_TRACE_STRING_MAX 80
	309	int OSSL_trace_string(BIO *out, int text, int full,
	310	const unsigned char *data, size_t size);
	311	#define OSSL_TRACE_STRING(category, text, full, data, len) \
	312	OSSL_TRACE_BEGIN(category) { \
	313	OSSL_trace_string(trc_out, text, full, data, len); \
	314	} OSSL_TRACE_END(category)
	315
2390c573 RL	316	# ifdef __cplusplus
	317	}
	318	# endif
	319
	320	#endif