gnutls_x509_crt_get_pk_oid(3) gnutls gnutls_x509_crt_get_pk_oid(3) NAME gnutls_x509_crt_get_pk_oid - API function SYNOPSIS #include int gnutls_x509_crt_get_pk_oid(gnutls_x509_crt_t cert, char * oid, size_t * oid_size); ARGUMENTS gnutls_x509_crt_t cert should contain a gnutls_x509_crt_t type char * oid a pointer to a buffer to hold the OID (may be null) size_t * oid_size initially holds the size of oid DESCRIPTION This function will return the OID of the public key algorithm on that certificate. This is function is useful in the case gnutls_x509_crt_get_pk_algorithm() returned GNUTLS_PK_UNKNOWN. RETURNS zero or a negative error code on error. SINCE 3.5.0 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_x509_crt_get_pk_oid(3)