diff options
Diffstat (limited to 'crypto/objects/obj_xref.c')
| -rw-r--r-- | crypto/objects/obj_xref.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/crypto/objects/obj_xref.c b/crypto/objects/obj_xref.c new file mode 100644 index 0000000000..d26394fe31 --- /dev/null +++ b/crypto/objects/obj_xref.c @@ -0,0 +1,132 @@ +/* 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 |