mirror of
https://github.com/openssl/openssl.git
synced 2024-12-09 05:51:54 +08:00
b97fdb57a2
Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/1900)
77 lines
2.5 KiB
Plaintext
77 lines
2.5 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
ERR_put_error, ERR_add_error_data - record an error
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/err.h>
|
|
|
|
void ERR_put_error(int lib, int func, int reason, const char *file,
|
|
int line);
|
|
|
|
void ERR_add_error_data(int num, ...);
|
|
void ERR_add_error_data(int num, va_list arg);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
ERR_put_error() adds an error code to the thread's error queue. It
|
|
signals that the error of reason code B<reason> occurred in function
|
|
B<func> of library B<lib>, in line number B<line> of B<file>.
|
|
This function is usually called by a macro.
|
|
|
|
ERR_add_error_data() associates the concatenation of its B<num> string
|
|
arguments with the error code added last.
|
|
ERR_add_error_vdata() is similar except the argument is a B<va_list>.
|
|
|
|
L<ERR_load_strings(3)> can be used to register
|
|
error strings so that the application can a generate human-readable
|
|
error messages for the error code.
|
|
|
|
=head2 Reporting errors
|
|
|
|
Each sub-library has a specific macro XXXerr() that is used to report
|
|
errors. Its first argument is a function code B<XXX_F_...>, the second
|
|
argument is a reason code B<XXX_R_...>. Function codes are derived
|
|
from the function names; reason codes consist of textual error
|
|
descriptions. For example, the function ssl3_read_bytes() reports a
|
|
"handshake failure" as follows:
|
|
|
|
SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
|
|
|
|
Function and reason codes should consist of upper case characters,
|
|
numbers and underscores only. The error file generation script translates
|
|
function codes into function names by looking in the header files
|
|
for an appropriate function name, if none is found it just uses
|
|
the capitalized form such as "SSL3_READ_BYTES" in the above example.
|
|
|
|
The trailing section of a reason code (after the "_R_") is translated
|
|
into lower case and underscores changed to spaces.
|
|
|
|
Although a library will normally report errors using its own specific
|
|
XXXerr macro, another library's macro can be used. This is normally
|
|
only done when a library wants to include ASN1 code which must use
|
|
the ASN1err() macro.
|
|
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
ERR_put_error() and ERR_add_error_data() return
|
|
no values.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<err(7)>, L<ERR_load_strings(3)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the OpenSSL license (the "License"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file LICENSE in the source distribution or at
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|