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pineappleEA
237
externals/libressl/crypto/objects/obj_xref.c
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237
externals/libressl/crypto/objects/obj_xref.c
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/* $OpenBSD: obj_xref.c,v 1.8 2017/01/21 04:44:43 jsing Exp $ */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project 2006.
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*/
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/* ====================================================================
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* Copyright (c) 2006 The OpenSSL Project. 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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/objects.h>
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#include "obj_xref.h"
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DECLARE_STACK_OF(nid_triple)
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STACK_OF(nid_triple) *sig_app, *sigx_app;
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static int
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sig_cmp(const nid_triple *a, const nid_triple *b)
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{
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return a->sign_id - b->sign_id;
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}
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static int sig_cmp_BSEARCH_CMP_FN(const void *, const void *);
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static int sig_cmp(nid_triple const *, nid_triple const *);
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static nid_triple *OBJ_bsearch_sig(nid_triple *key, nid_triple const *base, int num);
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static int
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sig_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
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{
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nid_triple const *a = a_;
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nid_triple const *b = b_;
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return sig_cmp(a, b);
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}
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static nid_triple *
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OBJ_bsearch_sig(nid_triple *key, nid_triple const *base, int num)
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{
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return (nid_triple *)OBJ_bsearch_(key, base, num, sizeof(nid_triple),
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sig_cmp_BSEARCH_CMP_FN);
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}
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static int
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sig_sk_cmp(const nid_triple * const *a, const nid_triple * const *b)
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{
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return (*a)->sign_id - (*b)->sign_id;
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}
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static int sigx_cmp_BSEARCH_CMP_FN(const void *, const void *);
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static int sigx_cmp(const nid_triple * const *, const nid_triple * const *);
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static const nid_triple * *OBJ_bsearch_sigx(const nid_triple * *key, const nid_triple * const *base, int num);
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static int
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sigx_cmp(const nid_triple * const *a, const nid_triple * const *b)
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{
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int ret;
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ret = (*a)->hash_id - (*b)->hash_id;
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if (ret)
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return ret;
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return (*a)->pkey_id - (*b)->pkey_id;
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}
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static int
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sigx_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
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{
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const nid_triple * const *a = a_;
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const nid_triple * const *b = b_;
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return sigx_cmp(a, b);
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}
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static const nid_triple * *
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OBJ_bsearch_sigx(const nid_triple * *key, const nid_triple * const *base, int num)
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{
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return (const nid_triple * *)OBJ_bsearch_(key, base, num, sizeof(const nid_triple *),
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sigx_cmp_BSEARCH_CMP_FN);
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}
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int
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OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid)
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{
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nid_triple tmp;
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const nid_triple *rv = NULL;
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tmp.sign_id = signid;
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if (sig_app) {
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int idx = sk_nid_triple_find(sig_app, &tmp);
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if (idx >= 0)
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rv = sk_nid_triple_value(sig_app, idx);
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}
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#ifndef OBJ_XREF_TEST2
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if (rv == NULL) {
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rv = OBJ_bsearch_sig(&tmp, sigoid_srt,
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sizeof(sigoid_srt) / sizeof(nid_triple));
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}
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#endif
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if (rv == NULL)
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return 0;
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if (pdig_nid)
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*pdig_nid = rv->hash_id;
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if (ppkey_nid)
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*ppkey_nid = rv->pkey_id;
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return 1;
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}
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int
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OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid)
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{
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nid_triple tmp;
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const nid_triple *t = &tmp;
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const nid_triple **rv = NULL;
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tmp.hash_id = dig_nid;
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tmp.pkey_id = pkey_nid;
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if (sigx_app) {
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int idx = sk_nid_triple_find(sigx_app, &tmp);
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if (idx >= 0) {
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t = sk_nid_triple_value(sigx_app, idx);
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rv = &t;
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}
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}
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#ifndef OBJ_XREF_TEST2
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if (rv == NULL) {
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rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref,
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sizeof(sigoid_srt_xref) / sizeof(nid_triple *));
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}
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#endif
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if (rv == NULL)
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return 0;
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if (psignid)
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*psignid = (*rv)->sign_id;
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return 1;
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}
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int
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OBJ_add_sigid(int signid, int dig_id, int pkey_id)
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{
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nid_triple *ntr;
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if (!sig_app)
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sig_app = sk_nid_triple_new(sig_sk_cmp);
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if (!sig_app)
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return 0;
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if (!sigx_app)
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sigx_app = sk_nid_triple_new(sigx_cmp);
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if (!sigx_app)
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return 0;
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ntr = reallocarray(NULL, 3, sizeof(int));
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if (!ntr)
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return 0;
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ntr->sign_id = signid;
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ntr->hash_id = dig_id;
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ntr->pkey_id = pkey_id;
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if (!sk_nid_triple_push(sig_app, ntr)) {
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free(ntr);
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return 0;
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}
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if (!sk_nid_triple_push(sigx_app, ntr))
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return 0;
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sk_nid_triple_sort(sig_app);
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sk_nid_triple_sort(sigx_app);
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return 1;
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}
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static void
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sid_free(nid_triple *tt)
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{
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free(tt);
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}
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void
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OBJ_sigid_free(void)
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{
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if (sig_app) {
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sk_nid_triple_pop_free(sig_app, sid_free);
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sig_app = NULL;
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}
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if (sigx_app) {
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sk_nid_triple_free(sigx_app);
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sigx_app = NULL;
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}
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}
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