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.IX Title &quot;ERR_LOAD_STRINGS 3&quot;
.TH ERR_LOAD_STRINGS 3 &quot;2023-09-11&quot; &quot;1.1.1w&quot; &quot;OpenSSL&quot;
.\&quot; For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH &quot;NAME&quot;
ERR_load_strings, ERR_PACK, ERR_get_next_error_library \- load arbitrary error strings
.SH &quot;SYNOPSIS&quot;
.IX Header &quot;SYNOPSIS&quot;
.Vb 1
\&amp; #include &lt;openssl/err.h&gt;
\&amp;
\&amp; int ERR_load_strings(int lib, ERR_STRING_DATA *str);
\&amp;
\&amp; int ERR_get_next_error_library(void);
\&amp;
\&amp; unsigned long ERR_PACK(int lib, int func, int reason);
.Ve
.SH &quot;DESCRIPTION&quot;
.IX Header &quot;DESCRIPTION&quot;
\&amp;\fBERR_load_strings()\fR registers error strings for library number \fBlib\fR.
.PP
\&amp;\fBstr\fR is an array of error string data:
.PP
.Vb 5
\&amp; typedef struct ERR_string_data_st
\&amp; {
\&amp;     unsigned long error;
\&amp;     char *string;
\&amp; } ERR_STRING_DATA;
.Ve
.PP
The error code is generated from the library number and a function and
reason code: \fBerror\fR = \s-1ERR_PACK\s0(\fBlib\fR, \fBfunc\fR, \fBreason\fR).
\&amp;\s-1\fBERR_PACK\s0()\fR is a macro.
.PP
The last entry in the array is {0,0}.
.PP
\&amp;\fBERR_get_next_error_library()\fR can be used to assign library numbers
to user libraries at runtime.
.SH &quot;RETURN VALUES&quot;
.IX Header &quot;RETURN VALUES&quot;
\&amp;\fBERR_load_strings()\fR returns 1 for success and 0 for failure. \s-1\fBERR_PACK\s0()\fR returns the error code.
\&amp;\fBERR_get_next_error_library()\fR returns zero on failure, otherwise a new
library number.
.SH &quot;SEE ALSO&quot;
.IX Header &quot;SEE ALSO&quot;
\&amp;\fBERR_load_strings\fR\|(3)
.SH &quot;COPYRIGHT&quot;
.IX Header &quot;COPYRIGHT&quot;
Copyright 2000\-2021 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L&quot;License\*(R&quot;).  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
&lt;https://www.openssl.org/source/license.html&gt;.
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