diff options
Diffstat (limited to 'src/crypto/obj/obj_xref.c')
-rw-r--r-- | src/crypto/obj/obj_xref.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/crypto/obj/obj_xref.c b/src/crypto/obj/obj_xref.c new file mode 100644 index 0000000..70babea --- /dev/null +++ b/src/crypto/obj/obj_xref.c @@ -0,0 +1,124 @@ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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 acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] */ + +#include <openssl/obj.h> + +#include <stdlib.h> + +#include "obj_xref.h" + + +static int nid_triple_cmp_by_sign_id(const void *in_a, const void *in_b) { + const nid_triple *a = in_a; + const nid_triple *b = in_b; + + return a->sign_id - b->sign_id; +} + +int OBJ_find_sigid_algs(int sign_nid, int *out_digest_nid, int *out_pkey_nid) { + nid_triple key; + const nid_triple *triple; + + key.sign_id = sign_nid; + + triple = bsearch(&key, sigoid_srt, sizeof(sigoid_srt) / sizeof(nid_triple), + sizeof(nid_triple), nid_triple_cmp_by_sign_id); + + if (triple == NULL) { + return 0; + } + if (out_digest_nid) { + *out_digest_nid = triple->hash_id; + } + if (out_pkey_nid) { + *out_pkey_nid = triple->pkey_id; + } + + return 1; +} + +static int nid_triple_cmp_by_digest_and_hash(const void *in_a, + const void *in_b) { + const nid_triple *a = *((nid_triple**) in_a); + const nid_triple *b = *((nid_triple**) in_b); + + int ret = a->hash_id - b->hash_id; + if (ret) { + return ret; + } + return a->pkey_id - b->pkey_id; +} + +int OBJ_find_sigid_by_algs(int *out_sign_nid, int digest_nid, int pkey_nid) { + nid_triple key, *pkey; + const nid_triple **triple; + + key.hash_id = digest_nid; + key.pkey_id = pkey_nid; + pkey = &key; + + triple = bsearch(&pkey, sigoid_srt_xref, + sizeof(sigoid_srt_xref) / sizeof(nid_triple *), + sizeof(nid_triple *), nid_triple_cmp_by_digest_and_hash); + + if (triple == NULL) { + return 0; + } + if (out_sign_nid) { + *out_sign_nid = (*triple)->sign_id; + } + return 1; +} |