gnutls_certificate_get_issuer(3)   gnutls   gnutls_certificate_get_issuer(3)

NAME         top

       gnutls_certificate_get_issuer - API function

SYNOPSIS         top

       #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

ARGUMENTS         top

       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

       unsigned int flags
                   Use zero or GNUTLS_TL_GET_COPY

DESCRIPTION         top

       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         top

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

SINCE         top


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 
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       page, send it to  This page was obtained from the
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gnutls                              3.6.9   gnutls_certificate_get_issuer(3)