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