xref: /freebsd-11-stable/crypto/heimdal/lib/krb5/padata.c

/*
 * Copyright (c) 1997 Kungliga Tekniska H��gskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "krb5_locl.h"

KRB5_LIB_FUNCTION PA_DATA * KRB5_LIB_CALL
krb5_find_padata(PA_DATA *val, unsigned len, int type, int *idx)
{
    for(; *idx < (int)len; (*idx)++)
	if(val[*idx].padata_type == (unsigned)type)
	    return val + *idx;
    return NULL;
}

KRB5_LIB_FUNCTION int KRB5_LIB_CALL
krb5_padata_add(krb5_context context, METHOD_DATA *md,
		int type, void *buf, size_t len)
{
    PA_DATA *pa;

    pa = realloc (md->val, (md->len + 1) * sizeof(*md->val));
    if (pa == NULL) {
	krb5_set_error_message(context, ENOMEM,
			       N_("malloc: out of memory", ""));
	return ENOMEM;
    }
    md->val = pa;

    pa[md->len].padata_type = type;
    pa[md->len].padata_value.length = len;
    pa[md->len].padata_value.data = buf;
    md->len++;

    return 0;
}