cmthash.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:6k
- /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
- /*
- * 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.
- */
- #if defined(XP_UNIX) || defined(XP_BEOS) || defined(XP_OS2)
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <netinet/in.h>
- #else
- #ifdef XP_MAC
- #include "macsocket.h"
- #include "string.h"
- #else
- #include <windows.h>
- #include <winsock.h>
- #endif
- #endif
- #include <errno.h>
- #include "cmtcmn.h"
- #include "cmtutils.h"
- #include "messages.h"
- #include "rsrcids.h"
- CMTStatus CMT_HashCreate(PCMT_CONTROL control, CMUint32 algID,
- CMUint32 * connID)
- {
- CMTItem message;
- SingleNumMessage request;
- DataConnectionReply reply;
- /* Check passed in parameters */
- if (!control) {
- goto loser;
- }
- /* Set up the request */
- request.value = algID;
- /* Encode the request */
- if (CMT_EncodeMessage(SingleNumMessageTemplate, &message, &request) != CMTSuccess) {
- goto loser;
- }
- /* Set the message request type */
- message.type = SSM_REQUEST_MESSAGE | SSM_DATA_CONNECTION | SSM_HASH_STREAM;
- /* Send the message and get the response */
- if (CMT_SendMessage(control, &message) == CMTFailure) {
- goto loser;
- }
- /* Validate the response */
- if (message.type != (SSM_REPLY_OK_MESSAGE | SSM_DATA_CONNECTION | SSM_HASH_STREAM)) {
- goto loser;
- }
- /* Decode the reply */
- if (CMT_DecodeMessage(DataConnectionReplyTemplate, &reply, &message) != CMTSuccess) {
- goto loser;
- }
- /* Success */
- if (reply.result == 0) {
- CMTSocket sock;
- sock = control->sockFuncs.socket(0);
- if(sock == NULL) {
- goto loser;
- }
-
- if (control->sockFuncs.connect(sock, reply.port, NULL) != CMTSuccess) {
- goto loser;
- }
- /* Send the hello message */
- control->sockFuncs.send(sock, control->nonce.data, control->nonce.len);
- /* Save connection info */
- if (CMT_AddDataConnection(control, sock, reply.connID)
- != CMTSuccess) {
- goto loser;
- }
- /* Set the connection ID */
- *connID = reply.connID;
- return CMTSuccess;
- }
- loser:
- *connID = 0;
- return CMTFailure;
- }
- CMTStatus CMT_HASH_Destroy(PCMT_CONTROL control, CMUint32 connectionID)
- {
- if (!control) {
- goto loser;
- }
- /* Get the cotext implementation data */
- if (CMT_CloseDataConnection(control, connectionID) == CMTFailure) {
- goto loser;
- }
- return CMTSuccess;
- loser:
- return CMTFailure;
- }
- CMTStatus CMT_HASH_Begin(PCMT_CONTROL control, CMUint32 connectionID)
- {
- return CMTSuccess;
- }
- CMTStatus CMT_HASH_Update(PCMT_CONTROL control, CMUint32 connectionID, const unsigned char * buf, CMUint32 len)
- {
- CMTSocket sock;
- CMUint32 sent;
- /* Do some parameter checking */
- if (!control || !buf) {
- goto loser;
- }
- /* Get the data socket */
- if (CMT_GetDataSocket(control, connectionID, &sock) == CMTFailure) {
- goto loser;
- }
- /* Write the data to the socket */
- sent = CMT_WriteThisMany(control, sock, (void*)buf, len);
- if (sent != len) {
- goto loser;
- }
- return CMTSuccess;
- loser:
- return CMTFailure;
- }
- CMTStatus CMT_HASH_End(PCMT_CONTROL control, CMUint32 connectionID,
- unsigned char * result, CMUint32 * resultlen,
- CMUint32 maxLen)
- {
- CMTItem hash = { 0, NULL, 0 };
- /* Do some parameter checking */
- if (!control || !result || !resultlen) {
- goto loser;
- }
- /* Close the connection */
- if (CMT_CloseDataConnection(control, connectionID) == CMTFailure) {
- goto loser;
- }
- /* Get the context info */
- if (CMT_GetStringAttribute(control, connectionID, SSM_FID_HASHCONN_RESULT,
- &hash) == CMTFailure) {
- goto loser;
- }
- if (!hash.data) {
- goto loser;
- }
- *resultlen = hash.len;
- if (hash.len > maxLen) {
- memcpy(result, hash.data, maxLen);
- } else {
- memcpy(result, hash.data, hash.len);
- }
- if (hash.data) {
- free(hash.data);
- }
- return CMTSuccess;
- loser:
- if (hash.data) {
- free(hash.data);
- }
- return CMTFailure;
- }