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 func-
       tion 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 loca-
       tion 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 num-
       ber where the error occurred in *file and *line, unless
       these are NULL.

       ERR_get_error_line_data(), ERR_peek_error_line_data()
       and ERR_get_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. If it has been allocated by
       OPENSSL_malloc(), *flags&ERR_TXT_MALLOCED is true.

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

SEE ALSO
       err(3), ERR_error_string(3), ERR_GET_LIB(3)

HISTORY
       ERR_get_error(), ERR_peek_error(), ERR_get_error_line()
       and ERR_peek_error_line() are available in all versions
       of SSLeay and OpenSSL. ERR_get_error_line_data() and
       ERR_peek_error_line_data() were added in SSLeay 0.9.0.
       ERR_peek_last_error(), ERR_peek_last_error_line() and
       ERR_peek_last_error_line_data() were added in OpenSSL
       0.9.7.



0.9.7c                     2002-11-29          ERR_get_error(3)
