gnutls_x509_crt_get_issuer_dn_by_oid man page on FreeBSD
gnutls_x509_crt_get_issuer_dn_by_oid - This function returns the Cer‐
tificate's issuer distinguished name
int gnutls_x509_crt_get_issuer_dn_by_oid(gnutls_x509_crt_t cert, const
char * oid, int indx, unsigned int raw_flag, void * buf, size_t *
should contain a gnutls_x509_crt_t structure
const char * oid
holds an Object Identified in null terminated string
int indx In case multiple same OIDs exist in the RDN, this specifies
which to send. Use zero to get the first one.
unsigned int raw_flag
If non zero returns the raw DER data of the DN part.
void * buf a pointer to a structure to hold the name (may be null)
size_t * sizeof_buf
initially holds the size of buf
This function will extract the part of the name of the Certificate
issuer specified by the given OID. The output, if the raw flag is not
used, will be encoded as described in RFC2253. Thus a string that is
ASCII or UTF-8 encoded, depending on the certificate data.
Some helper macros with popular OIDs can be found in gnutls/x509.h If
raw flag is zero, this function will only return known OIDs as text.
Other OIDs will be DER encoded, as described in RFC2253 -- in hex for‐
mat with a 'using gnutls_x509_dn_oid_known().
If buf is null then only the size will be filled.
GNUTLS_E_SHORT_MEMORY_BUFFER if the provided buffer is not long enough,
and in that case the *sizeof_buf will be updated with the required
size. On success 0 is returned.
Report bugs to <email@example.com>. GnuTLS home page:
http://www.gnu.org/software/gnutls/ General help using GNU software:
Copyright © 2008 Free Software Foundation.
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.
The full documentation for gnutls is maintained as a Texinfo manual.
If the info and gnutls programs are properly installed at your site,
should give you access to the complete manual.
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