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Edit File : ERR_peek_last_error_line.3ssl \| Size : 6.92 KB
.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \(-- will .\" give an unbreakable dash, \(PI will give pi, \(L" will give a left .\" double quote, and \(R" will give a right double quote. \(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \(C` and \(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(W\h'-12u'\(W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(W\h'-12u'\(W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \\|\(em\\| . ds PI \(p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. 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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "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 .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #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); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fBERR_get_error()\fR 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. .PP \&\fBERR_peek_error()\fR returns the earliest error code from the thread's error queue without modifying it. .PP \&\fBERR_peek_last_error()\fR returns the latest error code from the thread's error queue without modifying it. .PP See \s-1\fBERR_GET_LIB\s0\fR\\|(3) for obtaining information about location and reason of the error, and \&\fBERR_error_string\fR\\|(3) for human-readable error messages. .PP \&\fBERR_get_error_line()\fR, \fBERR_peek_error_line()\fR and \&\fBERR_peek_last_error_line()\fR are the same as the above, but they additionally store the file name and line number where the error occurred in \fBfile\fR and \fBline\fR, unless these are \fB\s-1NULL\s0\fR. .PP \&\fBERR_get_error_line_data()\fR, \fBERR_peek_error_line_data()\fR and \&\fBERR_peek_last_error_line_data()\fR store additional data and flags associated with the error code in \fBdata\fR and \fBflags\fR, unless these are \fB\s-1NULL\s0\fR. \fBdata\fR contains a string if \fBflags\fR&\fB\s-1ERR_TXT_STRING\s0\fR is true. .PP An application \fB\s-1MUST NOT\s0\fR free the *\fBdata\fR pointer (or any other pointers returned by these functions) with \fBOPENSSL_free()\fR as freeing is handled automatically by the error library. .SH "RETURN VALUES" .IX Header "RETURN VALUES" The error code, or 0 if there is no error in the queue. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBerr\fR\\|(3), \fBERR_error_string\fR\\|(3), \&\s-1\fBERR_GET_LIB\s0\fR\\|(3) .SH "HISTORY" .IX Header "HISTORY" \&\fBERR_get_error()\fR, \fBERR_peek_error()\fR, \fBERR_get_error_line()\fR and \&\fBERR_peek_error_line()\fR are available in all versions of SSLeay and OpenSSL. \fBERR_get_error_line_data()\fR and \fBERR_peek_error_line_data()\fR were added in SSLeay 0.9.0. \&\fBERR_peek_last_error()\fR, \fBERR_peek_last_error_line()\fR and \&\fBERR_peek_last_error_line_data()\fR were added in OpenSSL 0.9.7. Back

Edit File : ERR_peek_last_error_line.3ssl | Size : 6.92 KB

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.\"
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.\" ========================================================================
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.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
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.ft R
.fi
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
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.ie n \{\
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.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
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.\"
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.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "ERR_get_error 3"
.TH ERR_get_error 3 "2019-12-20" "1.0.2u" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "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
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #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);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBERR_get_error()\fR 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.
.PP
\&\fBERR_peek_error()\fR returns the earliest error code from the thread's
error queue without modifying it.
.PP
\&\fBERR_peek_last_error()\fR returns the latest error code from the thread's
error queue without modifying it.
.PP
See \s-1\fBERR_GET_LIB\s0\fR\|(3) for obtaining information about
location and reason of the error, and
\&\fBERR_error_string\fR\|(3) for human-readable error
messages.
.PP
\&\fBERR_get_error_line()\fR, \fBERR_peek_error_line()\fR and
\&\fBERR_peek_last_error_line()\fR are the same as the above, but they
additionally store the file name and line number where
the error occurred in *\fBfile\fR and *\fBline\fR, unless these are \fB\s-1NULL\s0\fR.
.PP
\&\fBERR_get_error_line_data()\fR, \fBERR_peek_error_line_data()\fR and
\&\fBERR_peek_last_error_line_data()\fR store additional data and flags
associated with the error code in *\fBdata\fR
and *\fBflags\fR, unless these are \fB\s-1NULL\s0\fR. *\fBdata\fR contains a string
if *\fBflags\fR&\fB\s-1ERR_TXT_STRING\s0\fR is true.
.PP
An application \fB\s-1MUST NOT\s0\fR free the *\fBdata\fR pointer (or any other pointers
returned by these functions) with \fBOPENSSL_free()\fR as freeing is handled
automatically by the error library.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
The error code, or 0 if there is no error in the queue.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBerr\fR\|(3), \fBERR_error_string\fR\|(3),
\&\s-1\fBERR_GET_LIB\s0\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBERR_get_error()\fR, \fBERR_peek_error()\fR, \fBERR_get_error_line()\fR and
\&\fBERR_peek_error_line()\fR are available in all versions of SSLeay and
OpenSSL. \fBERR_get_error_line_data()\fR and \fBERR_peek_error_line_data()\fR
were added in SSLeay 0.9.0.
\&\fBERR_peek_last_error()\fR, \fBERR_peek_last_error_line()\fR and
\&\fBERR_peek_last_error_line_data()\fR were added in OpenSSL 0.9.7.

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