mirror of
https://github.com/openssl/openssl.git
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31b28ad96a
add CMP message validation and related tests; while doing so:
* add ERR_add_error_mem_bio() to crypto/err/err_prn.c
* move ossl_cmp_add_error_txt() as ERR_add_error_txt() to crypto/err/err_prn.c
* add X509_STORE_CTX_print_verify_cb() to crypto/x509/t_x509.c,
adding internally x509_print_ex_brief(), print_certs(), and print_store_certs()
* move {ossl_cmp_,}X509_STORE_get1_certs() to crypto/x509/x509_lu.c
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/10620)
123 lines
4.5 KiB
Plaintext
123 lines
4.5 KiB
Plaintext
=pod
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=head1 NAME
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ERR_raise, ERR_raise_data,
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ERR_put_error, ERR_add_error_data, ERR_add_error_vdata,
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ERR_add_error_txt, ERR_add_error_mem_bio
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- record an error
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=head1 SYNOPSIS
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#include <openssl/err.h>
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void ERR_raise(int lib, int reason);
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void ERR_raise_data(int lib, int reason, const char *fmt, ...);
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void ERR_add_error_data(int num, ...);
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void ERR_add_error_vdata(int num, va_list arg);
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void ERR_add_error_txt(const char *sep, const char *txt);
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void ERR_add_error_mem_bio(const char *sep, BIO *bio);
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Deprecated since OpenSSL 3.0:
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void ERR_put_error(int lib, int func, int reason, const char *file, int line);
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=head1 DESCRIPTION
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ERR_raise() adds a new error to the thread's error queue. The
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error occurred in the library B<lib> for the reason given by the
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B<reason> code. Furthermore, the name of the file, the line, and name
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of the function where the error occurred is saved with the error
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record.
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ERR_raise_data() does the same thing as ERR_raise(), but also lets the
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caller specify additional information as a format string B<fmt> and an
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arbitrary number of values, which are processed with L<BIO_snprintf(3)>.
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ERR_put_error() adds an error code to the thread's error queue. It
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signals that the error of reason code B<reason> occurred in function
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B<func> of library B<lib>, in line number B<line> of B<file>.
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This function is usually called by a macro.
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ERR_add_error_data() associates the concatenation of its B<num> string
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arguments as additional data with the error code added last.
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ERR_add_error_vdata() is similar except the argument is a B<va_list>.
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Multiple calls to these functions append to the current top of the error queue.
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The total length of the string data per error is limited to 4096 characters.
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ERR_add_error_txt() appends the given text string as additional data to the
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last error queue entry, after inserting the optional separator string if it is
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not NULL and the top error entry does not yet have additional data.
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In case the separator is at the end of the text it is not appended to the data.
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The B<sep> argument may be for instance "\n" to insert a line break when needed.
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If the associated data would become more than 4096 characters long
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(which is the limit given above)
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it is split over sufficiently many new copies of the last error queue entry.
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ERR_add_error_mem_bio() is the same as ERR_add_error_txt() except that
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the text string is taken from the given memory BIO.
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It appends '\0' to the BIO contents if not already NUL-terminated.
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L<ERR_load_strings(3)> can be used to register
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error strings so that the application can a generate human-readable
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error messages for the error code.
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=head2 Reporting errors
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=for comment TODO(3.0) should this be internal documentation?
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Each sub-library has a specific macro XXXerr() that is used to report
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errors. Its first argument is a function code B<XXX_F_...>, the second
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argument is a reason code B<XXX_R_...>. Function codes are derived
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from the function names; reason codes consist of textual error
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descriptions. For example, the function ssl3_read_bytes() reports a
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"handshake failure" as follows:
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SSLerr(SSL_F_SSL3_READ_BYTES, SSL_R_SSL_HANDSHAKE_FAILURE);
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Function and reason codes should consist of uppercase characters,
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numbers and underscores only. The error file generation script translates
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function codes into function names by looking in the header files
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for an appropriate function name, if none is found it just uses
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the capitalized form such as "SSL3_READ_BYTES" in the above example.
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The trailing section of a reason code (after the "_R_") is translated
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into lowercase and underscores changed to spaces.
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Although a library will normally report errors using its own specific
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XXXerr macro, another library's macro can be used. This is normally
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only done when a library wants to include ASN1 code which must use
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the ASN1err() macro.
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=head1 RETURN VALUES
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ERR_raise(), ERR_put_error(),
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ERR_add_error_data(), ERR_add_error_vdata()
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ERR_add_error_txt(), and ERR_add_error_mem_bio()
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return no values.
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=head1 NOTES
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ERR_raise() and ERR_put_error() are implemented as macros.
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=head1 SEE ALSO
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L<ERR_load_strings(3)>
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=head1 HISTORY
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B<ERR_add_error_txt> and B<ERR_add_error_mem_bio> were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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