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/*
* Copyright 1995-2022 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 OSSL_APPS_LOG_H
# define OSSL_APPS_LOG_H
# include <openssl/bio.h>
# if !defined(OPENSSL_SYS_VMS) && !defined(OPENSSL_SYS_WINDOWS) \
&& !defined(OPENSSL_NO_SOCK) && !defined(OPENSSL_NO_POSIX_IO)
# include <syslog.h>
# else
# define LOG_EMERG 0
# define LOG_ALERT 1
# define LOG_CRIT 2
# define LOG_ERR 3
# define LOG_WARNING 4
# define LOG_NOTICE 5
# define LOG_INFO 6
# define LOG_DEBUG 7
# endif
# undef LOG_TRACE
# define LOG_TRACE (LOG_DEBUG + 1)
int log_set_verbosity(const char *prog, int level);
int log_get_verbosity(void);
/*-
* Output a message using the trace API with the given category
* if the category is >= 0 and tracing is enabled.
* Log the message to syslog if multi-threaded HTTP_DAEMON, else to bio_err
* if the verbosity is sufficient for the given level of severity.
* Yet cannot do both types of output in strict ANSI mode.
* category: trace category as defined in trace.h, or -1
* prog: the name of the current app, or NULL
* level: the severity of the message, e.g., LOG_ERR
* fmt: message format, which should not include a trailing newline
* ...: potential extra parameters like with printf()
* returns nothing
*/
void trace_log_message(int category,
const char *prog, int level, const char *fmt, ...);
#endif /* OSSL_APPS_LOG_H */
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