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/*
* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
* (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"
RCSID("$Id: data.c,v 1.17 2003/03/25 22:07:17 lha Exp $");
void
krb5_data_zero(krb5_data *p)
{
p->length = 0;
p->data = NULL;
}
void
krb5_data_free(krb5_data *p)
{
if(p->data != NULL)
free(p->data);
p->length = 0;
}
void
krb5_free_data_contents(krb5_context context, krb5_data *data)
{
krb5_data_free(data);
}
void
krb5_free_data(krb5_context context,
krb5_data *p)
{
krb5_data_free(p);
free(p);
}
krb5_error_code
krb5_data_alloc(krb5_data *p, int len)
{
p->data = malloc(len);
if(len && p->data == NULL)
return ENOMEM;
p->length = len;
return 0;
}
krb5_error_code
krb5_data_realloc(krb5_data *p, int len)
{
void *tmp;
tmp = realloc(p->data, len);
if(len && !tmp)
return ENOMEM;
p->data = tmp;
p->length = len;
return 0;
}
krb5_error_code
krb5_data_copy(krb5_data *p, const void *data, size_t len)
{
if (len) {
if(krb5_data_alloc(p, len))
return ENOMEM;
memmove(p->data, data, len);
} else
p->data = NULL;
p->length = len;
return 0;
}
krb5_error_code
krb5_copy_data(krb5_context context,
const krb5_data *indata,
krb5_data **outdata)
{
krb5_error_code ret;
ALLOC(*outdata, 1);
if(*outdata == NULL) {
krb5_set_error_string(context, "malloc: out of memory");
return ENOMEM;
}
ret = copy_octet_string(indata, *outdata);
if(ret) {
krb5_clear_error_string (context);
free(*outdata);
}
return ret;
}
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