214 lines
6.6 KiB
Groff
214 lines
6.6 KiB
Groff
.\" Automatically generated by Pod::Man version 1.15
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.\" Mon Jan 13 19:27:54 2003
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.\" ======================================================================
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.\"
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.IX Title "ERR_get_error 3"
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.TH ERR_get_error 3 "0.9.7" "2003-01-13" "OpenSSL"
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.UC
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.SH "NAME"
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ERR_get_error, ERR_peek_error, ERR_peek_last_error,
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ERR_get_error_line, ERR_peek_error_line, ERR_peek_last_error_line,
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ERR_get_error_line_data, ERR_peek_error_line_data,
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ERR_peek_last_error_line_data \- obtain error code and data
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/err.h>
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.Ve
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.Vb 3
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\& unsigned long ERR_get_error(void);
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\& unsigned long ERR_peek_error(void);
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\& unsigned long ERR_peek_last_error(void);
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.Ve
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.Vb 3
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\& unsigned long ERR_get_error_line(const char **file, int *line);
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\& unsigned long ERR_peek_error_line(const char **file, int *line);
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\& unsigned long ERR_peek_last_error_line(const char **file, int *line);
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.Ve
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.Vb 6
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\& unsigned long ERR_get_error_line_data(const char **file, int *line,
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\& const char **data, int *flags);
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\& unsigned long ERR_peek_error_line_data(const char **file, int *line,
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\& const char **data, int *flags);
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\& unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
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\& const char **data, int *flags);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fIERR_get_error()\fR returns the earliest error code from the thread's error
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queue and removes the entry. This function can be called repeatedly
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until there are no more error codes to return.
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.PP
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\&\fIERR_peek_error()\fR returns the earliest error code from the thread's
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error queue without modifying it.
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.PP
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\&\fIERR_peek_last_error()\fR returns the latest error code from the thread's
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error queue without modifying it.
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.PP
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See ERR_GET_LIB(3) for obtaining information about
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location and reason of the error, and
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ERR_error_string(3) for human-readable error
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messages.
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.PP
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\&\fIERR_get_error_line()\fR, \fIERR_peek_error_line()\fR and
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\&\fIERR_peek_last_error_line()\fR are the same as the above, but they
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additionally store the file name and line number where
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the error occurred in *\fBfile\fR and *\fBline\fR, unless these are \fB\s-1NULL\s0\fR.
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.PP
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\&\fIERR_get_error_line_data()\fR, \fIERR_peek_error_line_data()\fR and
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\&\fIERR_get_last_error_line_data()\fR store additional data and flags
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associated with the error code in *\fBdata\fR
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and *\fBflags\fR, unless these are \fB\s-1NULL\s0\fR. *\fBdata\fR contains a string
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if *\fBflags\fR&\fB\s-1ERR_TXT_STRING\s0\fR. If it has been allocated by \fIOPENSSL_malloc()\fR,
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*\fBflags\fR&\fB\s-1ERR_TXT_MALLOCED\s0\fR is true.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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The error code, or 0 if there is no error in the queue.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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err(3), ERR_error_string(3),
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ERR_GET_LIB(3)
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.SH "HISTORY"
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.IX Header "HISTORY"
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\&\fIERR_get_error()\fR, \fIERR_peek_error()\fR, \fIERR_get_error_line()\fR and
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\&\fIERR_peek_error_line()\fR are available in all versions of SSLeay and
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OpenSSL. \fIERR_get_error_line_data()\fR and \fIERR_peek_error_line_data()\fR
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were added in SSLeay 0.9.0.
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\&\fIERR_peek_last_error()\fR, \fIERR_peek_last_error_line()\fR and
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\&\fIERR_peek_last_error_line_data()\fR were added in OpenSSL 0.9.7.
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