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#ifndef HEADER_CURL_LOG_H
#define HEADER_CURL_LOG_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
struct Curl_easy;
struct Curl_cfilter;
/**
* Init logging, return != 0 on failure.
*/
CURLcode Curl_log_init(void);
void Curl_infof(struct Curl_easy *, const char *fmt, ...);
void Curl_failf(struct Curl_easy *, const char *fmt, ...);
#if defined(CURL_DISABLE_VERBOSE_STRINGS)
#if defined(HAVE_VARIADIC_MACROS_C99)
#define infof(...) Curl_nop_stmt
#elif defined(HAVE_VARIADIC_MACROS_GCC)
#define infof(x...) Curl_nop_stmt
#else
#error "missing VARIADIC macro define, fix and rebuild!"
#endif
#else /* CURL_DISABLE_VERBOSE_STRINGS */
#define infof Curl_infof
#endif /* CURL_DISABLE_VERBOSE_STRINGS */
#define failf Curl_failf
#define CURL_LOG_DEFAULT 0
#define CURL_LOG_DEBUG 1
#define CURL_LOG_TRACE 2
/* the function used to output verbose information */
void Curl_debug(struct Curl_easy *data, curl_infotype type,
char *ptr, size_t size);
#ifdef DEBUGBUILD
/* explainer: we have some mix configuration and werror settings
* that define HAVE_VARIADIC_MACROS_C99 even though C89 is enforced
* on gnuc and some other compiler. Need to treat carefully.
*/
#if defined(HAVE_VARIADIC_MACROS_C99) && \
defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
#define LOG_CF(data, cf, ...) \
do { if(Curl_log_cf_is_debug(cf, data)) \
Curl_log_cf_debug(data, cf, __VA_ARGS__); } while(0)
#else
#define LOG_CF Curl_log_cf_debug
#endif
void Curl_log_cf_debug(struct Curl_easy *data, struct Curl_cfilter *cf,
#if defined(__GNUC__) && !defined(printf) && \
defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
!defined(__MINGW32__)
const char *fmt, ...)
__attribute__((format(printf, 3, 4)));
#else
const char *fmt, ...);
#endif
#define Curl_log_cf_is_debug(cf, data) \
((data) && (data)->set.verbose && \
(cf) && (cf)->cft->log_level >= CURL_LOG_DEBUG)
#else /* !DEBUGBUILD */
#if defined(HAVE_VARIADIC_MACROS_C99) && \
defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
#define LOG_CF(...) Curl_nop_stmt
#define Curl_log_cf_debug(...) Curl_nop_stmt
#elif defined(HAVE_VARIADIC_MACROS_GCC) && \
defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
#define LOG_CF(x...) Curl_nop_stmt
#define Curl_log_cf_debug(x...) Curl_nop_stmt
#else
#define LOG_CF Curl_log_cf_debug
/* without c99, we seem unable to completely define away this function. */
void Curl_log_cf_debug(struct Curl_easy *data, struct Curl_cfilter *cf,
const char *fmt, ...);
#endif
#define Curl_log_cf_is_debug(x,y) ((void)(x), (void)(y), FALSE)
#endif /* !DEBUGBUILD */
#define LOG_CF_IS_DEBUG(cf, data) Curl_log_cf_is_debug(cf, data)
#endif /* HEADER_CURL_LOG_H */
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