ERR_GET_ERROR - Online Linux Manual PageSection : 3
Updated : 2021-03-26
Source : 1.1.1k
Note : OpenSSL
NAMEERR_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 filename 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 VALUESThe error code, or 0 if there is no error in the queue.
SEE ALSO​ERR_error_string (3), ​ERR_GET_LIB (3)
COPYRIGHTCopyright 2000−2020 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>. 0
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