gnutls_certificate_set_verify_function(3) gnutls NAME gnutls_certificate_set_verify_function - API function SYNOPSIS #include void gnutls_certificate_set_verify_function(gnutls_certificate_credentials_t cred, gnutls_certificate_verify_function * func); ARGUMENTS gnutls_certificate_credentials_t cred is a gnutls_certificate_credentials_t type. gnutls_certificate_verify_function * func is the callback function DESCRIPTION This function sets a callback to be called when peer's certificate has been received in order to verify it on receipt rather than doing after the handshake is completed. The callback's function prototype is: int (*callback)(gnutls_session_t); If the callback function is provided then gnutls will call it, in the handshake, just after the certificate message has been received. To verify or obtain the certificate the gnutls_certificate_verify_peers2(), gnutls_certificate_type_get(), gnutls_certificate_get_peers() functions can be used. The callback function should return 0 for the handshake to continue or non-zero to terminate. SINCE 2.10.0 REPORTING BUGS Report bugs to . Home page: https://www.gnutls.org COPYRIGHT Copyright (C) 2001-2023 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/share/doc/gnutls/ directory does not contain the HTML form visit https://www.gnutls.org/manual/ gnutls 3.8.5 gnutls_certificate_set_verify_function(3)