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Edit File : ERR_error_string_n.3ssl \| Size : 6.46 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. 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 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). .\" Fear. Run. Save yourself. 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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_error_string, ERR_error_string_n, ERR_lib_error_string, ERR_func_error_string, ERR_reason_error_string \- obtain human\-readable error message .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/err.h> \& \& char ERR_error_string(unsigned long e, char buf); \& void ERR_error_string_n(unsigned long e, char buf, size_t len); \& \& const char ERR_lib_error_string(unsigned long e); \& const char ERR_func_error_string(unsigned long e); \& const char *ERR_reason_error_string(unsigned long e); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fBERR_error_string()\fR generates a human-readable string representing the error code \fIe\fR, and places it at \fIbuf\fR. \fIbuf\fR must be at least 120 bytes long. If \fIbuf\fR is \fB\s-1NULL\s0\fR, the error string is placed in a static buffer. \&\fBERR_error_string_n()\fR is a variant of \fBERR_error_string()\fR that writes at most \fIlen\fR characters (including the terminating 0) and truncates the string if necessary. For \fBERR_error_string_n()\fR, \fIbuf\fR may not be \fB\s-1NULL\s0\fR. .PP The string will have the following format: .PP .Vb 1 \& error:[error code]:[library name]:[function name]:[reason string] .Ve .PP \&\fIerror code\fR is an 8 digit hexadecimal number, \fIlibrary name\fR, \&\fIfunction name\fR and \fIreason string\fR are \s-1ASCII\s0 text. .PP \&\fBERR_lib_error_string()\fR, \fBERR_func_error_string()\fR and \&\fBERR_reason_error_string()\fR return the library name, function name and reason string respectively. .PP The OpenSSL error strings should be loaded by calling \&\fBERR_load_crypto_strings\fR\\|(3) or, for \s-1SSL\s0 applications, \fBSSL_load_error_strings\fR\\|(3) first. If there is no text string registered for the given error code, the error string will contain the numeric code. .PP \&\fBERR_print_errors\fR\\|(3) can be used to print all error codes currently in the queue. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fBERR_error_string()\fR returns a pointer to a static buffer containing the string if \fIbuf\fR \fB== \s-1NULL\s0\fR, \fIbuf\fR otherwise. .PP \&\fBERR_lib_error_string()\fR, \fBERR_func_error_string()\fR and \&\fBERR_reason_error_string()\fR return the strings, and \fB\s-1NULL\s0\fR if none is registered for the error code. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBerr\fR\\|(3), \fBERR_get_error\fR\\|(3), \&\fBERR_load_crypto_strings\fR\\|(3), \&\fBSSL_load_error_strings\fR\\|(3) \&\fBERR_print_errors\fR\\|(3) .SH "HISTORY" .IX Header "HISTORY" \&\fBERR_error_string()\fR is available in all versions of SSLeay and OpenSSL. \&\fBERR_error_string_n()\fR was added in OpenSSL 0.9.6. Back

Edit File : ERR_error_string_n.3ssl | Size : 6.46 KB

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..
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.nf
.ne \\$1
..
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..
.\" 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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.\"
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.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
.if (\n(rF:(\n(.g==0)) \{\
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..
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.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
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\{\
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.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "ERR_error_string 3"
.TH ERR_error_string 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_error_string, ERR_error_string_n, ERR_lib_error_string,
ERR_func_error_string, ERR_reason_error_string \- obtain human\-readable
error message
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/err.h>
\&
\& char *ERR_error_string(unsigned long e, char *buf);
\& void ERR_error_string_n(unsigned long e, char *buf, size_t len);
\&
\& const char *ERR_lib_error_string(unsigned long e);
\& const char *ERR_func_error_string(unsigned long e);
\& const char *ERR_reason_error_string(unsigned long e);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBERR_error_string()\fR generates a human-readable string representing the
error code \fIe\fR, and places it at \fIbuf\fR. \fIbuf\fR must be at least 120
bytes long. If \fIbuf\fR is \fB\s-1NULL\s0\fR, the error string is placed in a
static buffer.
\&\fBERR_error_string_n()\fR is a variant of \fBERR_error_string()\fR that writes
at most \fIlen\fR characters (including the terminating 0)
and truncates the string if necessary.
For \fBERR_error_string_n()\fR, \fIbuf\fR may not be \fB\s-1NULL\s0\fR.
.PP
The string will have the following format:
.PP
.Vb 1
\& error:[error code]:[library name]:[function name]:[reason string]
.Ve
.PP
\&\fIerror code\fR is an 8 digit hexadecimal number, \fIlibrary name\fR,
\&\fIfunction name\fR and \fIreason string\fR are \s-1ASCII\s0 text.
.PP
\&\fBERR_lib_error_string()\fR, \fBERR_func_error_string()\fR and
\&\fBERR_reason_error_string()\fR return the library name, function
name and reason string respectively.
.PP
The OpenSSL error strings should be loaded by calling
\&\fBERR_load_crypto_strings\fR\|(3) or, for \s-1SSL\s0
applications, \fBSSL_load_error_strings\fR\|(3)
first.
If there is no text string registered for the given error code,
the error string will contain the numeric code.
.PP
\&\fBERR_print_errors\fR\|(3) can be used to print
all error codes currently in the queue.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBERR_error_string()\fR returns a pointer to a static buffer containing the
string if \fIbuf\fR \fB== \s-1NULL\s0\fR, \fIbuf\fR otherwise.
.PP
\&\fBERR_lib_error_string()\fR, \fBERR_func_error_string()\fR and
\&\fBERR_reason_error_string()\fR return the strings, and \fB\s-1NULL\s0\fR if
none is registered for the error code.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBerr\fR\|(3), \fBERR_get_error\fR\|(3),
\&\fBERR_load_crypto_strings\fR\|(3),
\&\fBSSL_load_error_strings\fR\|(3)
\&\fBERR_print_errors\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBERR_error_string()\fR is available in all versions of SSLeay and OpenSSL.
\&\fBERR_error_string_n()\fR was added in OpenSSL 0.9.6.

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