log.h

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/*
 * util/log.h - logging service
 *
 * Copyright (c) 2007, NLnet Labs. All rights reserved.
 *
 * This software is open source.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * Neither the name of the NLNET LABS nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

 
#ifndef UTIL_LOG_H
#define UTIL_LOG_H
struct sldns_buffer;

enum verbosity_value {
    NO_VERBOSE = 0,
    VERB_OPS,
    VERB_DETAIL,
    VERB_QUERY,
    VERB_ALGO,
    VERB_CLIENT
};

extern enum verbosity_value verbosity;

void verbose(enum verbosity_value level, 
    const char* format, ...) ATTR_FORMAT(printf, 2, 3);

void log_init(const char* filename, int use_syslog, const char* chrootdir);

void log_file(FILE *f);

void log_thread_set(int* num);

int log_thread_get(void);

void log_ident_set(const char* id);

void log_set_time(time_t* t);

void log_set_time_asc(int use_asc);

void* log_get_lock(void);

void log_info(const char* format, ...) ATTR_FORMAT(printf, 1, 2);

void log_err(const char* format, ...) ATTR_FORMAT(printf, 1, 2);

void log_warn(const char* format, ...) ATTR_FORMAT(printf, 1, 2);

void log_hex(const char* msg, void* data, size_t length);

void log_buf(enum verbosity_value level, const char* msg, struct sldns_buffer* buf);

void fatal_exit(const char* format, ...) ATTR_FORMAT(printf, 1, 2);

void log_vmsg(int pri, const char* type, const char* format, va_list args);

#ifdef UNBOUND_DEBUG
#ifdef __clang_analyzer__
/* clang analyzer needs to know that log_assert is an assertion, otherwise
 * it could complain about the nullptr the assert is guarding against. */
#define log_assert(x) assert(x)
#else
#  define log_assert(x) \
    do { if(!(x)) \
        fatal_exit("%s:%d: %s: assertion %s failed", \
            __FILE__, __LINE__, __func__, #x); \
    } while(0);
#endif
#else
#  define log_assert(x) /*nothing*/
#endif
 
#ifdef USE_WINSOCK
char* wsa_strerror(DWORD err);
#endif /* USE_WINSOCK */
 
#endif /* UTIL_LOG_H */