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

/*
 * Copyright 2019-2021 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
# ifndef OPENSSL_NO_ENGINE
#  define OSSL_TRACE_CATEGORY_ENGINE_TABLE       6
#  define OSSL_TRACE_CATEGORY_ENGINE_REF_COUNT   7
# endif
# 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_NUM                17

/* 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).
 */

# ifndef OPENSSL_NO_TRACE

#  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)) {
 *         ...
 *     }
 */
# ifndef OPENSSL_NO_TRACE

#  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?");
 */

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

# 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) \
    OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9))

# ifdef  __cplusplus
}
# endif

#endif
Commit	Line	Data
2390c573	1	/*
a28d06f3	2	* Copyright 2019-2021 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
184fb690 P	46	# ifndef OPENSSL_NO_ENGINE
	47	# define OSSL_TRACE_CATEGORY_ENGINE_TABLE 6
	48	# define OSSL_TRACE_CATEGORY_ENGINE_REF_COUNT 7
	49	# endif
3b9e1a39 RL	50	# define OSSL_TRACE_CATEGORY_PKCS5V2 8
	51	# define OSSL_TRACE_CATEGORY_PKCS12_KEYGEN 9
	52	# define OSSL_TRACE_CATEGORY_PKCS12_DECRYPT 10
	53	# define OSSL_TRACE_CATEGORY_X509V3_POLICY 11
	54	# define OSSL_TRACE_CATEGORY_BN_CTX 12
7960dbec	55	# define OSSL_TRACE_CATEGORY_CMP 13
2897b009	56	# define OSSL_TRACE_CATEGORY_STORE 14
de5008a4	57	# define OSSL_TRACE_CATEGORY_DECODER 15
0b9f90f5 RL	58	# define OSSL_TRACE_CATEGORY_ENCODER 16
0b9f90f5 RL	59	# define OSSL_TRACE_CATEGORY_NUM 17
2390c573 RL	60
	61	/* Returns the trace category number for the given \|name\| */
	62	int OSSL_trace_get_category_num(const char *name);
	63
	64	/* Returns the trace category name for the given \|num\| */
	65	const char *OSSL_trace_get_category_name(int num);
	66
	67	/*
	68	* TRACE CONSUMERS
	69	*/
	70
	71	/*
	72	* Enables tracing for the given \|category\| by providing a BIO sink
	73	* as \|channel\|. If a null pointer is passed as \|channel\|, an existing
	74	* trace channel is removed and tracing for the category is disabled.
	75	*
	76	* Returns 1 on success and 0 on failure
	77	*/
	78	int OSSL_trace_set_channel(int category, BIO* channel);
	79
	80	/*
	81	* Attach a prefix and a suffix to the given \|category\|, to be printed at the
	82	* beginning and at the end of each trace output group, i.e. when
	83	* OSSL_trace_begin() and OSSL_trace_end() are called.
	84	* If a null pointer is passed as argument, the existing prefix or suffix is
	85	* removed.
	86	*
	87	* They return 1 on success and 0 on failure
	88	*/
	89	int OSSL_trace_set_prefix(int category, const char *prefix);
	90	int OSSL_trace_set_suffix(int category, const char *suffix);
	91
	92	/*
	93	* OSSL_trace_cb is the type tracing callback provided by the application.
	94	* It MUST return the number of bytes written, or 0 on error (in other words,
	95	* it can never write zero bytes).
	96	*
	97	* The \|buffer\| will always contain text, which may consist of several lines.
	98	* The \|data\| argument points to whatever data was provided by the application
	99	* when registering the tracer function.
	100	*
	101	* The \|category\| number is given, as well as a \|cmd\| number, described below.
	102	*/
	103	typedef size_t (OSSL_trace_cb)(const char buffer, size_t count,
	104	int category, int cmd, void *data);
	105	/*
	106	* Possible \|cmd\| numbers.
	107	*/
	108	# define OSSL_TRACE_CTRL_BEGIN 0
13d06925	109	# define OSSL_TRACE_CTRL_WRITE 1
2390c573 RL	110	# define OSSL_TRACE_CTRL_END 2
	111
	112	/*
	113	* Enables tracing for the given \|category\| by creating an internal
	114	* trace channel which sends the output to the given \|callback\|.
	115	* If a null pointer is passed as callback, an existing trace channel
	116	* is removed and tracing for the category is disabled.
	117	*
	118	* NOTE: OSSL_trace_set_channel() and OSSL_trace_set_callback() are mutually
	119	* exclusive.
	120	*
	121	* Returns 1 on success and 0 on failure
	122	*/
	123	int OSSL_trace_set_callback(int category, OSSL_trace_cb callback, void *data);
	124
	125	/*
	126	* TRACE PRODUCERS
	127	*/
	128
	129	/*
	130	* Returns 1 if tracing for the specified category is enabled, otherwise 0
	131	*/
	132	int OSSL_trace_enabled(int category);
	133
	134	/*
	135	* Wrap a group of tracing output calls. OSSL_trace_begin() locks tracing and
	136	* returns the trace channel associated with the given category, or NULL if no
	137	* channel is associated with the category. OSSL_trace_end() unlocks tracing.
	138	*
	139	* Usage:
	140	*
	141	* BIO *out;
	142	* if ((out = OSSL_trace_begin(category)) != NULL) {
	143	* ...
	144	* BIO_fprintf(out, ...);
	145	* ...
	146	* OSSL_trace_end(category, out);
	147	* }
	148	*
	149	* See also the convenience macros OSSL_TRACE_BEGIN and OSSL_TRACE_END below.
	150	*/
	151	BIO *OSSL_trace_begin(int category);
	152	void OSSL_trace_end(int category, BIO *channel);
	153
	154	/*
	155	* OSSL_TRACE* Convenience Macros
	156	*/
	157
	158	/*
	159	* When the tracing feature is disabled, these macros are defined to
	160	* produce dead code, which a good compiler should eliminate.
	161	*/
	162
	163	/*
	164	* OSSL_TRACE_BEGIN, OSSL_TRACE_END - Define a Trace Group
	165	*
	166	* These two macros can be used to create a block which is executed only
	167	* if the corresponding trace category is enabled. Inside this block, a
	168	* local variable named \|trc_out\| is defined, which points to the channel
	169	* associated with the given trace category.
	170	*
	171	* Usage: (using 'TLS' as an example category)
	172	*
	173	* OSSL_TRACE_BEGIN(TLS) {
174	*
175	* BIO_fprintf(trc_out, ... );
176	*
177	* } OSSL_TRACE_END(TLS);
178	*
179	*
180	* This expands to the following code
181	*
182	* do {
183	* BIO *trc_out = OSSL_trace_begin(OSSL_TRACE_CATEGORY_TLS);
184	* if (trc_out != NULL) {
185	* ...
186	* BIO_fprintf(trc_out, ...);
187	* }
188	* OSSL_trace_end(OSSL_TRACE_CATEGORY_TLS, trc_out);
189	* } while (0);
190	*
191	* The use of the inner '{...}' group and the trailing ';' is enforced
192	* by the definition of the macros in order to make the code look as much
193	* like C code as possible.
194	*
195	* Before returning from inside the trace block, it is necessary to
196	* call OSSL_TRACE_CANCEL(category).
197	*/
198
16a9d374 RL	199	# ifndef OPENSSL_NO_TRACE
	200
	201	# define OSSL_TRACE_BEGIN(category) \
2390c573 RL	202	do { \
	203	BIO *trc_out = OSSL_trace_begin(OSSL_TRACE_CATEGORY_##category); \
	204	\
	205	if (trc_out != NULL)
	206
16a9d374	207	# define OSSL_TRACE_END(category) \
2390c573 RL	208	OSSL_trace_end(OSSL_TRACE_CATEGORY_##category, trc_out); \
	209	} while (0)
	210
16a9d374	211	# define OSSL_TRACE_CANCEL(category) \
2390c573 RL	212	OSSL_trace_end(OSSL_TRACE_CATEGORY_##category, trc_out) \
2390c573 RL	213
16a9d374 RL	214	# else
	215
	216	# define OSSL_TRACE_BEGIN(category) \
	217	do { \
	218	BIO *trc_out = NULL; \
	219	if (0)
	220
	221	# define OSSL_TRACE_END(category) \
	222	} while(0)
	223
	224	# define OSSL_TRACE_CANCEL(category) \
	225	((void)0)
	226
	227	# endif
	228
2390c573 RL	229	/*
	230	* OSSL_TRACE_ENABLED() - Check whether tracing is enabled for \|category\|
	231	*
	232	* Usage:
	233	*
	234	* if (OSSL_TRACE_ENABLED(TLS)) {
	235	* ...
	236	* }
	237	*/
16a9d374	238	# ifndef OPENSSL_NO_TRACE
2390c573	239
16a9d374	240	# define OSSL_TRACE_ENABLED(category) \
2390c573 RL	241	OSSL_trace_enabled(OSSL_TRACE_CATEGORY_##category)
2390c573 RL	242
16a9d374 RL	243	# else
	244
	245	# define OSSL_TRACE_ENABLED(category) (0)
	246
	247	# endif
	248
2390c573 RL	249	/*
	250	* OSSL_TRACE*() - OneShot Trace Macros
	251	*
	252	* These macros are intended to produce a simple printf-style trace output.
	253	* Unfortunately, C90 macros don't support variable arguments, so the
	254	* "vararg" OSSL_TRACEV() macro has a rather weird usage pattern:
	255	*
	256	* OSSL_TRACEV(category, (trc_out, "format string", ...args...));
	257	*
	258	* Where 'channel' is the literal symbol of this name, not a variable.
	259	* For that reason, it is currently not intended to be used directly,
	260	* but only as helper macro for the other oneshot trace macros
	261	* OSSL_TRACE(), OSSL_TRACE1(), OSSL_TRACE2(), ...
	262	*
	263	* Usage:
	264	*
	265	* OSSL_TRACE(INIT, "Hello world!\n");
	266	* OSSL_TRACE1(TLS, "The answer is %d\n", 42);
	267	* OSSL_TRACE2(TLS, "The ultimate question to answer %d is '%s'\n",
	268	* 42, "What do you get when you multiply six by nine?");
	269	*/
	270
	271	# define OSSL_TRACEV(category, args) \
	272	OSSL_TRACE_BEGIN(category) \
	273	BIO_printf args; \
	274	OSSL_TRACE_END(category)
	275
	276	# define OSSL_TRACE(category, text) \
	277	OSSL_TRACEV(category, (trc_out, "%s", text))
	278
	279	# define OSSL_TRACE1(category, format, arg1) \
	280	OSSL_TRACEV(category, (trc_out, format, arg1))
	281	# define OSSL_TRACE2(category, format, arg1, arg2) \
	282	OSSL_TRACEV(category, (trc_out, format, arg1, arg2))
	283	# define OSSL_TRACE3(category, format, arg1, arg2, arg3) \
	284	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3))
	285	# define OSSL_TRACE4(category, format, arg1, arg2, arg3, arg4) \
	286	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4))
	287	# define OSSL_TRACE5(category, format, arg1, arg2, arg3, arg4, arg5) \
	288	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5))
	289	# define OSSL_TRACE6(category, format, arg1, arg2, arg3, arg4, arg5, arg6) \
	290	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6))
	291	# define OSSL_TRACE7(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
	292	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7))
	293	# define OSSL_TRACE8(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
	294	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8))
	295	# define OSSL_TRACE9(category, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
	296	OSSL_TRACEV(category, (trc_out, format, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9))
	297
	298	# ifdef __cplusplus
	299	}
	300	# endif
	301
	302	#endif