gnutls_srp_set_client_credentials_function(3) — Linux manual page



NAME         top

       gnutls_srp_set_client_credentials_function - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       cred, gnutls_srp_client_credentials_function         * func);

ARGUMENTS         top

       gnutls_srp_client_credentials_t         cred
                   is a gnutls_srp_server_credentials_t type.

       gnutls_srp_client_credentials_function         * func
                   is the callback function

DESCRIPTION         top

       This function can be used to set a callback to retrieve the username
       and password for client SRP authentication.  The callback's function
       form is:

       int (*callback)(gnutls_session_t, char** username, char**password);

       The  username and  password must be allocated using gnutls_malloc().

       The  username should be an ASCII string or UTF-8 string. In case of a
       UTF-8 string it is recommended to be following the PRECIS framework
       for usernames (rfc8265). The password can be in ASCII format, or
       normalized using gnutls_utf8_password_normalize().

       The callback function will be called once per handshake before the
       initial hello message is sent.

       The callback should not return a negative error code the second time
       called, since the handshake procedure will be aborted.

       The callback function should return 0 on success.  -1 indicates an

REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2019 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification,
       are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO         top

       The full documentation for gnutls is maintained as a Texinfo manual.
       If the /usr/share/doc/gnutls/ directory does not contain the HTML
       form visit 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.9.tar.xz fetched from
       ⟨⟩ on 2020-09-18.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

gnutls                         gnutl3s._6s.r9p_set_client_credentials_function(3)