Add documentation for OSSL_LIB_CTX_set/get_conf_diagnostics

Reviewed-by: Paul Dale <ppzgs1@gmail.com>
Reviewed-by: Neil Horman <nhorman@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24275)

1 files changed, 53 insertions, 0 deletions

diff --git a/doc/man3/OSSL_LIB_CTX_set_conf_diagnostics.pod b/doc/man3/OSSL_LIB_CTX_set_conf_diagnostics.pod
new file mode 100644
index 0000000000..80c02afb0c
--- /dev/null
+++ b/doc/man3/OSSL_LIB_CTX_set_conf_diagnostics.pod
@@ -0,0 +1,53 @@
+=pod
+
+=head1 NAME
+
+OSSL_LIB_CTX_set_conf_diagnostics, OSSL_LIB_CTX_get_conf_diagnostics
+- Set and get configuration diagnostics
+
+=head1 SYNOPSIS
+
+ #include <openssl/crypto.h>
+
+ void OSSL_LIB_CTX_set_conf_diagnostics(OSSL_LIB_CTX *ctx, int value);
+ int OSSL_LIB_CTX_get_conf_diagnostics(OSSL_LIB_CTX *ctx);
+
+=head1 DESCRIPTION
+
+OSSL_LIB_CTX_set_conf_diagnostics() sets the value of the configuration
+diagnostics flag. If I<value> is nonzero subsequent parsing and application
+of configuration data can report errors that would otherwise be ignored. In
+particular any errors in the ssl configuration module will cause a failure
+of L<SSL_CTX_new(3)> and L<SSL_CTX_new_ex(3)> calls. The configuration
+diagnostics flag can be also set when a configuration file is being loaded
+into B<OSSL_LIB_CTX> with L<OSSL_LIB_CTX_load_config(3)>. If the configuration
+sets a B<config_diagnostics> value as described in L<config(5)>, it will
+override the value set by OSSL_LIB_CTX_set_conf_diagnostics() before
+loading the configuration file.
+
+OSSL_LIB_CTX_get_conf_diagnostics() returns the current value of the
+configuration diagnostics flag.
+
+=head1 RETURN VALUES
+
+OSSL_LIB_CTX_get_conf_diagnostics() returns 0 if the configuration diagnostics
+should not be performed, nonzero otherwise.
+
+=head1 SEE ALSO
+
+L<SSL_CTX_new(3)>, L<OSSL_LIB_CTX_load_config(3)>, L<config(5)>
+
+=head1 HISTORY
+
+The functions described on this page were added in OpenSSL 3.4.
+
+=head1 COPYRIGHT
+
+Copyright 2024 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (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