mirror of
https://github.com/freebsd/freebsd-src.git
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Pedro F. Giffuni
abfc303352
lib: initial use of reallocarray(3). Make some use of reallocarray, attempting to limit it to cases where the parameters are unsigned and there is some theoretical chance of overflow.
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/*
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* Copyright (c) 2004, PADL Software Pty Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of PADL Software nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* $FreeBSD$ */
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#include <gssapi/gssapi.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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/* RCSID("$Id: gss_buffer_set.c 18885 2006-10-24 21:53:02Z lha $"); */
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OM_uint32
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gss_create_empty_buffer_set(OM_uint32 * minor_status,
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gss_buffer_set_t *buffer_set)
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{
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gss_buffer_set_t set;
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set = (gss_buffer_set_desc *) malloc(sizeof(*set));
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if (set == GSS_C_NO_BUFFER_SET) {
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*minor_status = ENOMEM;
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return (GSS_S_FAILURE);
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}
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set->count = 0;
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set->elements = NULL;
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*buffer_set = set;
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*minor_status = 0;
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return (GSS_S_COMPLETE);
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}
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OM_uint32
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gss_add_buffer_set_member(OM_uint32 * minor_status,
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const gss_buffer_t member_buffer, gss_buffer_set_t *buffer_set)
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{
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gss_buffer_set_t set;
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gss_buffer_t p;
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OM_uint32 ret;
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if (*buffer_set == GSS_C_NO_BUFFER_SET) {
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ret = gss_create_empty_buffer_set(minor_status,
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buffer_set);
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if (ret) {
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return (ret);
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}
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}
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set = *buffer_set;
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set->elements = reallocarray(set->elements, set->count + 1,
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sizeof(set->elements[0]));
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if (set->elements == NULL) {
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*minor_status = ENOMEM;
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return (GSS_S_FAILURE);
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}
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p = &set->elements[set->count];
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p->value = malloc(member_buffer->length);
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if (p->value == NULL) {
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*minor_status = ENOMEM;
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return (GSS_S_FAILURE);
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}
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memcpy(p->value, member_buffer->value, member_buffer->length);
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p->length = member_buffer->length;
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set->count++;
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*minor_status = 0;
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return (GSS_S_COMPLETE);
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}
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OM_uint32
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gss_release_buffer_set(OM_uint32 * minor_status, gss_buffer_set_t *buffer_set)
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{
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size_t i;
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OM_uint32 minor;
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*minor_status = 0;
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if (*buffer_set == GSS_C_NO_BUFFER_SET)
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return (GSS_S_COMPLETE);
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for (i = 0; i < (*buffer_set)->count; i++)
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gss_release_buffer(&minor, &((*buffer_set)->elements[i]));
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free((*buffer_set)->elements);
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(*buffer_set)->elements = NULL;
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(*buffer_set)->count = 0;
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free(*buffer_set);
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*buffer_set = GSS_C_NO_BUFFER_SET;
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return (GSS_S_COMPLETE);
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}
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