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* plugins/authdata/greet/
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* Copyright 2008 by the Massachusetts Institute of Technology.
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* Export of this software from the United States of America may
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* require a specific license from the United States Government.
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* It is the responsibility of any person or organization contemplating
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* export to obtain such a license before exporting.
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* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
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* distribute this software and its documentation for any purpose and
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* without fee is hereby granted, provided that the above copyright
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* notice appear in all copies and that both that copyright notice and
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* this permission notice appear in supporting documentation, and that
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* the name of M.I.T. not be used in advertising or publicity pertaining
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* to distribution of the software without specific, written prior
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* permission. Furthermore if you modify this software you must label
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* your software as modified software and not distribute it in such a
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* fashion that it might be confused with the original M.I.T. software.
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* M.I.T. makes no representations about the suitability of
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* this software for any purpose. It is provided "as is" without express
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* or implied warranty.
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* Sample authorization data plugin
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#include <krb5/authdata_plugin.h>
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typedef struct krb5_db_entry krb5_db_entry;
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static krb5_error_code
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greet_init(krb5_context ctx, void **blob)
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greet_fini(krb5_context ctx, void *blob)
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static krb5_error_code
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greet_authdata(krb5_context ctx, krb5_db_entry *client,
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krb5_kdc_req *request,
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krb5_enc_tkt_part * enc_tkt_reply)
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#define GREET_SIZE (20)
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krb5_authdata **new_ad;
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p = calloc(1, GREET_SIZE);
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a = calloc(1, sizeof(*a));
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if (p == NULL || a == NULL) {
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strncpy(p, "hello there", GREET_SIZE-1);
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a->magic = KV5M_AUTHDATA;
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a->length = GREET_SIZE;
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a->contents = (unsigned char *)p;
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if (enc_tkt_reply->authorization_data == 0) {
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for (count = 0; enc_tkt_reply->authorization_data[count] != 0; count++)
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new_ad = realloc(enc_tkt_reply->authorization_data,
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(count+2) * sizeof(krb5_authdata *));
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enc_tkt_reply->authorization_data = new_ad;
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new_ad[count+1] = NULL;
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krb5plugin_authdata_ftable_v0 authdata_server_0 = {