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Edit File : ERR_peek_last_error_line.3 \| Size : 6.94 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++. 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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 filename 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_error_string\fR\\|(3), \&\s-1\fBERR_GET_LIB\s0\fR\\|(3) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2000\-2020 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>. Back

Edit File : ERR_peek_last_error_line.3 | Size : 6.94 KB

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.\" 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
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.\" nothing in troff, for use with C<>.
.tr \(*W-
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.\"
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.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
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.\" 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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.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
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\{\
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.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "ERR_GET_ERROR 3"
.TH ERR_GET_ERROR 3 "2023-09-11" "1.1.1w" "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 filename 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_error_string\fR\|(3),
\&\s-1\fBERR_GET_LIB\s0\fR\|(3)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2000\-2020 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.

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