SSL_state_string, SSL_state_string_long - get textual description of state of an SSL object

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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_STATE_STRING(3SSL)

SSL_state_string() returns an abbreviated string indicating the current state of the SSL object ssl. The
       returned NUL-terminated string contains 6 or fewer characters.

       SSL_state_string_long() returns a descriptive string indicating the current state of the SSL object ssl.

       SSL_state_string, SSL_state_string_long - get textual description of state of an SSL object

       During its use, an SSL objects passes several states. The state is internally maintained. Querying the
       state information is not very informative before or when a connection has been established. It however
       can be of significant interest during the handshake.

       When using nonblocking sockets, the function call performing the handshake may return with
       SSL_ERROR_WANT_READ or SSL_ERROR_WANT_WRITE condition, so that SSL_state_string[_long]() may be called.

       For both blocking or nonblocking sockets, the details state information can be used within the
       info_callback function set with the SSL_set_info_callback() call.

       Detailed description of possible states to be included later.

ssl(7), SSL_CTX_set_info_callback(3)

        #include <openssl/ssl.h>

        const char *SSL_state_string(const SSL *ssl);
        const char *SSL_state_string_long(const SSL *ssl);