SSL_CTX_use_serverinfo_file(3ssl) - phpMan

SSL_CTX_use_serverinfo(3)                    OpenSSL                    SSL_CTX_use_serverinfo(3)



NAME
       SSL_CTX_use_serverinfo, SSL_CTX_use_serverinfo_file - use serverinfo extension

SYNOPSIS
        #include <openssl/ssl.h>

        int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
                                   size_t serverinfo_length);

        int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file);

DESCRIPTION
       These functions load "serverinfo" TLS ServerHello Extensions into the SSL_CTX.  A
       "serverinfo" extension is returned in response to an empty ClientHello Extension.

       SSL_CTX_use_serverinfo() loads one or more serverinfo extensions from a byte array into
       ctx.  The extensions must be concatenated into a sequence of bytes.  Each extension must
       consist of a 2-byte Extension Type, a 2-byte length, and then length bytes of
       extension_data.

       SSL_CTX_use_serverinfo_file() loads one or more serverinfo extensions from file into ctx.
       The extensions must be in PEM format.  Each extension must consist of a 2-byte Extension
       Type, a 2-byte length, and then length bytes of extension_data.  Each PEM extension name
       must begin with the phrase "BEGIN SERVERINFO FOR ".

       If more than one certificate (RSA/DSA) is installed using SSL_CTX_use_certificate(), the
       serverinfo extension will be loaded into the last certificate installed.  If e.g. the last
       item was a RSA certificate, the loaded serverinfo extension data will be loaded for that
       certificate.  To use the serverinfo extension for multiple certificates,
       SSL_CTX_use_serverinfo() needs to be called multiple times, once after each time a
       certificate is loaded.

NOTES
RETURN VALUES
       On success, the functions return 1.  On failure, the functions return 0.  Check out the
       error stack to find out the reason.

SEE ALSO
HISTORY
1.0.2k                                      2017-01-26                  SSL_CTX_use_serverinfo(3)

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