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ERR_GET_ERROR(3)		    OpenSSL		      ERR_GET_ERROR(3)

NAME
       ERR_get_error, ERR_peek_error, ERR_peek_last_error, ERR_get_error_line,
       ERR_peek_error_line, ERR_peek_last_error_line, ERR_get_error_line_data,
       ERR_peek_error_line_data, ERR_peek_last_error_line_data - obtain	error
       code and	data

SYNOPSIS
	#include <openssl/err.h>

	unsigned long ERR_get_error(void);
	unsigned long ERR_peek_error(void);
	unsigned long ERR_peek_last_error(void);

	unsigned long ERR_get_error_line(const char **file, int	*line);
	unsigned long ERR_peek_error_line(const	char **file, int *line);
	unsigned long ERR_peek_last_error_line(const char **file, int *line);

	unsigned long ERR_get_error_line_data(const char **file, int *line,
					      const char **data, int *flags);
	unsigned long ERR_peek_error_line_data(const char **file, int *line,
					       const char **data, int *flags);
	unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
						    const char **data, int *flags);

DESCRIPTION
       ERR_get_error() returns the earliest error code from the	thread's error
       queue and removes the entry. This function can be called	repeatedly
       until there are no more error codes to return.

       ERR_peek_error()	returns	the earliest error code	from the thread's
       error queue without modifying it.

       ERR_peek_last_error() returns the latest	error code from	the thread's
       error queue without modifying it.

       See ERR_GET_LIB(3) for obtaining	information about location and reason
       of the error, and ERR_error_string(3) for human-readable	error
       messages.

       ERR_get_error_line(), ERR_peek_error_line() and
       ERR_peek_last_error_line() are the same as the above, but they
       additionally store the file name	and line number	where the error
       occurred	in *file and *line, unless these are NULL.

       ERR_get_error_line_data(), ERR_peek_error_line_data() and
       ERR_peek_last_error_line_data() store additional	data and flags
       associated with the error code in *data and *flags, unless these	are
       NULL. *data contains a string if	*flags&ERR_TXT_STRING is true.

       An application MUST NOT free the	*data pointer (or any other pointers
       returned	by these functions) with OPENSSL_free()	as freeing is handled
       automatically by	the error library.

RETURN VALUES
       The error code, or 0 if there is	no error in the	queue.

SEE ALSO
       ERR_error_string(3), ERR_GET_LIB(3)

COPYRIGHT
       Copyright 2000-2017 The OpenSSL Project Authors.	All Rights Reserved.

       Licensed	under the OpenSSL license (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>.

1.1.1a				  2018-11-20		      ERR_GET_ERROR(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | COPYRIGHT

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