+/* crypto/objects/obj_xref.c */
+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+ * project 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project. 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. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <openssl/objects.h>
+#include "obj_xref.h"
+
+static int cmp_sig(const nid_triple *a, const nid_triple *b)
+ {
+ return **a - **b;
+ }
+
+static int cmp_sigx(const nid_triple **a, const nid_triple **b)
+ {
+ int ret;
+ ret = (**a)[1] - (**b)[1];
+ if (ret)
+ return ret;
+ return (**a)[2] - (**b)[2];
+ }
+
+
+int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid)
+ {
+ nid_triple tmp, *rv;
+ tmp[0] = signid;
+
+ rv = (nid_triple *)OBJ_bsearch((char *)&tmp,
+ (char *)sigoid_srt,
+ sizeof(sigoid_srt) / sizeof(nid_triple),
+ sizeof(nid_triple),
+ (int (*)(const void *, const void *))cmp_sig);
+ if (rv == NULL)
+ return 0;
+ *pdig_nid = (*rv)[1];
+ *ppkey_nid = (*rv)[2];
+ return 1;
+ }
+
+int OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid)
+ {
+ nid_triple tmp, *t=&tmp, **rv;
+ tmp[1] = dig_nid;
+ tmp[2] = pkey_nid;
+
+ rv = (nid_triple **)OBJ_bsearch((char *)&t,
+ (char *)sigoid_srt_xref,
+ sizeof(sigoid_srt_xref) / sizeof(nid_triple *),
+ sizeof(nid_triple *),
+ (int (*)(const void *, const void *))cmp_sigx);
+ if (rv == NULL)
+ return 0;
+ *psignid = (**rv)[0];
+ return 1;
+ }
+
+#ifdef OBJ_XREF_TEST
+
+main()
+ {
+ int n1, n2, n3;
+
+ int i, rv;
+
+ for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++)
+ {
+ n1 = sigoid_srt[i][0];
+ rv = OBJ_find_sigid_algs(n1, &n2, &n3);
+ printf("Forward: %d, %s %s %s\n", rv,
+ OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3));
+ n1=0;
+ rv = OBJ_find_sigid_by_algs(&n1, n2, n3);
+ printf("Reverse: %d, %s %s %s\n", rv,
+ OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3));
+ }
+ }
+
+#endif
projects / openssl.git / commitdiff