NAME

       gnutls_certificate_get_issuer - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       int    gnutls_certificate_get_issuer(gnutls_certificate_credentials_t    sc,    gnutls_x509_crt_t   cert,
       gnutls_x509_crt_t * issuer, unsigned int flags);

ARGUMENTS

       gnutls_certificate_credentials_t sc
                   is a gnutls_certificate_credentials_t type.

       gnutls_x509_crt_t cert
                   is the certificate to find issuer for

       gnutls_x509_crt_t * issuer
                   Will hold the issuer if any. Should be treated as constant.

       unsigned int flags
                   Use zero or GNUTLS_TL_GET_COPY

DESCRIPTION

       This function will return the issuer of a given certificate.  If the flag GNUTLS_TL_GET_COPY is specified
       a  copy  of the issuer will be returned which must be freed using gnutls_x509_crt_deinit().  In that case
       the provided  issuer must not be initialized.

       As with gnutls_x509_trust_list_get_issuer() this function requires the GNUTLS_TL_GET_COPY flag  in  order
       to operate with PKCS11 trust lists in a thread-safe way.

RETURNS

       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.

SINCE

       3.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org

COPYRIGHT

       Copyright © 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/