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KRB5_GET_CREDENTIALS(3) FreeBSD Library Functions Manual
NAME
krb5_get_credentials, krb5_get_credentials_with_flags, krb5_get_kdc_cred,
krb5_get_renewed_creds - get credentials from the KDC using krbtgt
LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
SYNOPSIS
#include <krb5.h>
krb5_error_code
krb5_get_credentials(krb5_context context, krb5_flags options,
krb5_ccache ccache, krb5_creds *in_creds, krb5_creds **out_creds);
krb5_error_code
krb5_get_credentials_with_flags(krb5_context context, krb5_flags options,
krb5_kdc_flags flags, krb5_ccache ccache, krb5_creds *in_creds,
krb5_creds **out_creds);
krb5_error_code
krb5_get_kdc_cred(krb5_context context, krb5_ccache id,
krb5_kdc_flags flags, krb5_addresses *addresses,
Ticket *second_ticket, krb5_creds *in_creds,
krb5_creds **out_creds);
krb5_error_code
krb5_get_renewed_creds(krb5_context context, krb5_creds *creds,
krb5_const_principal client, krb5_ccache ccache,
const char *in_tkt_service);
DESCRIPTION
krb5_get_credentials_with_flags() get credentials specified by
in_creds->server and in_creds->client (the rest of the in_creds structure
is ignored) by first looking in the ccache and if doesn't exists or is
expired, fetch the credential from the KDC using the krbtgt in ccache.
The credential is returned in out_creds and should be freed using the
function krb5_free_creds().
Valid flags to pass into options argument are:
KRB5_GC_CACHED Only check the ccache, don't got out on network to
fetch credential.
KRB5_GC_USER_USER Request a user to user ticket. This option doesn't
store the resulting user to user credential in the
ccache.
KRB5_GC_EXPIRED_OK returns the credential even if it is expired, default
behavior is trying to refetch the credential from the
KDC.
Flags are KDCOptions, note the caller must fill in the bit-field and not
use the integer associated structure.
krb5_get_credentials() works the same way as
krb5_get_credentials_with_flags() except that the flags field is missing.
krb5_get_kdc_cred() does the same as the functions above, but the caller
must fill in all the information andits closer to the wire protocol.
id or the KDC and returns it to the caller.
#include <krb5.h>
int
getcred(krb5_context context, krb5_ccache id, krb5_creds **creds)
{
krb5_error_code ret;
krb5_creds in;
ret = krb5_parse_name(context, "client@EXAMPLE.COM",
&in.client);
if (ret)
krb5_err(context, 1, ret, "krb5_parse_name");
ret = krb5_parse_name(context, "host/server.example.com@EXAMPLE.COM",
&in.server);
if (ret)
krb5_err(context, 1, ret, "krb5_parse_name");
ret = krb5_get_credentials(context, 0, id, &in, creds);
if (ret)
krb5_err(context, 1, ret, "krb5_get_credentials");
return 0;
}
SEE ALSO
krb5(3), krb5_get_forwarded_creds(3), krb5.conf(5)
HEIMDAL July 26, 2004 HEIMDAL