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gnutls_psk_set_server_credentials_function2(3) gnutls NAME gnutls_psk_set_server_credentials_function2 - API function SYNOPSIS #include <gnutls/gnutls.h> void gnutls_psk_set_server_credentials_function2(gnutls_psk_server_credentials_t cred, gnutls_psk_server_credentials_function2 func); ARGUMENTS gnutls_psk_server_credentials_t cred is a gnutls_psk_server_credentials_t type. gnutls_psk_server_credentials_function2 func is the callback function DESCRIPTION This function can be used to set a callback to retrieve the user's PSK credentials. The callback's function form is: int (*callback)(gnutls_session_t, const gnutls_datum_t* username, gnutls_datum_t* key); This callback function has the same semantics as that of gnutls_psk_set_server_credentials_function(), but it allows non-string usernames to be used. username contains the actual username. The key must be filled in using the gnutls_malloc(). In case the callback returned a negative number then gnutls will assume that the username does not exist. The callback function will only be called once per handshake. The callback function should return 0 on success, while -1 indicates an error. REPORTING BUGS Report bugs to <bugs@gnutls.org>. Home page: https://www.gnutls.org COPYRIGHT Copyright (C) 2001- 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 The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/local/share/doc/gnutls/ directory does not contain the HTML form visit https://www.gnutls.org/manual/ gnutls 3.7.9 gnutls_psk_set_server_credentials_function2(3)