115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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#include "secplcy.h"
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#include "prmem.h"
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SECCipherFind *sec_CipherFindInit(PRBool onlyAllowed,
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secCPStruct *policy,
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long *ciphers)
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{
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SECCipherFind *find = PR_NEWZAP(SECCipherFind);
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if (find)
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{
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find->policy = policy;
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find->ciphers = ciphers;
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find->onlyAllowed = onlyAllowed;
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find->index = -1;
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}
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return find;
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}
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long sec_CipherFindNext(SECCipherFind *find)
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{
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char *policy;
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long rv = -1;
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secCPStruct *policies = (secCPStruct *) find->policy;
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long *ciphers = (long *) find->ciphers;
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long numCiphers = policies->num_ciphers;
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find->index++;
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while((find->index < numCiphers) && (rv == -1))
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{
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/* Translate index to cipher. */
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rv = ciphers[find->index];
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/* If we're only looking for allowed ciphers, and if this
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cipher isn't allowed, loop around.*/
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if (find->onlyAllowed)
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{
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/* Find the appropriate policy flag. */
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policy = (&(policies->begin_ciphers)) + find->index + 1;
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/* If this cipher isn't allowed by policy, continue. */
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if (! (*policy))
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{
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rv = -1;
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find->index++;
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}
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}
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}
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return rv;
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}
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char sec_IsCipherAllowed(long cipher, secCPStruct *policies,
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long *ciphers)
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{
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char result = SEC_CIPHER_NOT_ALLOWED; /* our default answer */
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long numCiphers = policies->num_ciphers;
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char *policy;
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int i;
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/* Convert the cipher number into a policy flag location. */
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for (i=0, policy=(&(policies->begin_ciphers) + 1);
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i<numCiphers;
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i++, policy++)
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{
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if (cipher == ciphers[i])
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break;
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}
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if (i < numCiphers)
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{
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/* Found the cipher, get the policy value. */
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result = *policy;
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}
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return result;
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}
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void sec_CipherFindEnd(SECCipherFind *find)
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{
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PR_FREEIF(find);
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}
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