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.Dd July 26, 2004
.Dt KRB5_GET_CREDENTIALS 3
.Os HEIMDAL
.Sh NAME
.Nm krb5_get_credentials ,
.Nm krb5_get_credentials_with_flags ,
.Nm krb5_get_cred_from_kdc ,
.Nm krb5_get_cred_from_kdc_opt
.Nd get credentials from the KDC using krbtgt
.Sh LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
.Sh SYNOPSIS
.In krb5.h
.Ft krb5_error_code
.Fo krb5_get_credentials
.Fa "krb5_context context"
.Fa "krb5_flags options"
.Fa "krb5_ccache ccache"
.Fa "krb5_creds *in_creds"
.Fa "krb5_creds **out_creds"
.Fc
.Ft krb5_error_code
.Fo krb5_get_credentials
.Fa "krb5_context context"
.Fa "krb5_flags options"
.Fa "krb5_kdc_flags flags"
.Fa "krb5_ccache ccache"
.Fa "krb5_creds *in_creds"
.Fa "krb5_creds **out_creds"
.Fc
.Ft krb5_error_code
.Fo krb5_get_cred_from_kdc
.Fa "krb5_context context"
.Fa "krb5_ccache ccache"
.Fa "krb5_creds *in_creds"
.Fa "krb5_creds **out_creds"
.Fa "krb5_creds ***ret_tgts"
.Fc
.Ft krb5_error_code
.Fo krb5_get_cred_from_kdc_opt
.Fa "krb5_context context"
.Fa "krb5_ccache ccache"
.Fa "krb5_creds *in_creds"
.Fa "krb5_creds **out_creds"
.Fa "krb5_creds ***ret_tgts"
.Fa "krb5_flags flags"
.Fc
.Sh DESCRIPTION
.Fn krb5_get_credentials_with_flags
get credentials by first looking in the
.Fa ccache
and then fetch the credential from the KDC using the krbtgt in
.Fa ccache .
Valid flags to pass into
.Fa options
argument are:
.Pp
.Bl -tag -width "KRB5_GC_USER_USER" -compact
.It KRB5_GC_CACHED
Only check the
.Fa ccache ,
don't got out on network to fetch credential.
.It KRB5_GC_USER_USER
request a user to user ticket.
This options doesn't store the resulting user to user credential in
the
.Fa ccache.
.El
.Pp
.Fa Flags
are KDCOptions, note the caller must fill in the bit-field and not
use the integer associated structure.
.Pp
.Fn krb5_get_credentials
works the same way as
.Fn krb5_get_credentials_with_flags
except that the
.Fa flags
field is missing.
.Pp
.Fn krb5_get_cred_from_kdc
and
.Fn krb5_get_cred_from_kdc_opt
fetches the credential from the KDC very much like
.Fn krb5_get_credentials, but doesn't look in the
.Fa ccache
if the credential exists there first.
.Sh SEE ALSO
.Xr krb5 3 ,
.Xr krb5_get_forwarded_creds 3 ,
.Xr krb5.conf 5