SSL_CONF_CTX_set_flags, SSL_CONF_CTX_clear_flags - Set or clear SSL configuration context flags

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       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
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                       SSL_CONF_CTX_SET_FLAGS(3SSL)

       The function SSL_CONF_CTX_set_flags() sets flags in the context cctx.

       The function SSL_CONF_CTX_clear_flags() clears flags in the context cctx.

       These functions were added in OpenSSL 1.0.2.

       SSL_CONF_CTX_set_flags, SSL_CONF_CTX_clear_flags - Set or clear SSL configuration context flags

       The flags set affect how subsequent calls to SSL_CONF_cmd() or SSL_CONF_argv() behave.

       Currently the following flags values are recognised:

       SSL_CONF_FLAG_CMDLINE, SSL_CONF_FLAG_FILE
           recognise  options  intended  for command line or configuration file use. At least one of these flags
           must be set.

       SSL_CONF_FLAG_CLIENT, SSL_CONF_FLAG_SERVER
           recognise options intended for use in SSL/TLS clients or servers. One or both of these flags must  be
           set.

       SSL_CONF_FLAG_CERTIFICATE
           recognise certificate and private key options.

       SSL_CONF_FLAG_REQUIRE_PRIVATE
           If  this  option  is  set then if a private key is not specified for a certificate it will attempt to
           load a private key from the certificate file when SSL_CONF_CTX_finish() is called. If a key cannot be
           loaded from the certificate file an error occurs.

       SSL_CONF_FLAG_SHOW_ERRORS
           indicate errors relating to unrecognised options or missing arguments in the  error  queue.  If  this
           option  isn't  set  such  errors  are  only  reflected  in the return values of SSL_CONF_set_cmd() or
           SSL_CONF_set_argv()

SSL_CONF_CTX_set_flags() and SSL_CONF_CTX_clear_flags() returns the new  flags  value  after  setting  or
       clearing flags.

ssl(7),  SSL_CONF_CTX_new(3),  SSL_CONF_CTX_set_ssl_ctx(3), SSL_CONF_CTX_set1_prefix(3), SSL_CONF_cmd(3),
       SSL_CONF_cmd_argv(3)

        #include <openssl/ssl.h>

        unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags);
        unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags);