+++ /dev/null
-/*
- * Copyright (c) 2002,2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-/*
- * ocspUtils.cpp - common utilities for OCSPD
- */
-
-#include "ocspdUtils.h"
-#include <CoreFoundation/CoreFoundation.h>
-
-/*
- * Compare two CSSM_DATAs, return CSSM_TRUE if identical.
- */
-CSSM_BOOL ocspdCompareCssmData(
- const CSSM_DATA *data1,
- const CSSM_DATA *data2)
-{
- if((data1 == NULL) || (data1->Data == NULL) ||
- (data2 == NULL) || (data2->Data == NULL) ||
- (data1->Length != data2->Length)) {
- return CSSM_FALSE;
- }
- if(data1->Length != data2->Length) {
- return CSSM_FALSE;
- }
- if(memcmp(data1->Data, data2->Data, data1->Length) == 0) {
- return CSSM_TRUE;
- }
- else {
- return CSSM_FALSE;
- }
-}
-
-/*
- * Convert a generalized time string, with a 4-digit year and no trailing
- * fractional seconds or time zone info, to a CFAbsoluteTime. Returns
- * NULL_TIME (0.0) on error.
- */
-static CFAbsoluteTime parseGenTime(
- const uint8 *str,
- uint32 len)
-{
- if((str == NULL) || (len == 0)) {
- return NULL_TIME;
- }
-
- /* tolerate NULL terminated or not */
- if(str[len - 1] == '\0') {
- len--;
- }
- if(len < 4) {
- return NULL_TIME;
- }
- char szTemp[5];
- CFGregorianDate greg;
- memset(&greg, 0, sizeof(greg));
- const uint8 *cp = str;
-
- /* YEAR */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = *cp++;
- szTemp[3] = *cp++;
- szTemp[4] = '\0';
- len -= 4;
- greg.year = atoi(szTemp);
-
- /* MONTH - CFGregorianDate ranges 1..12, just like the string */
- if(len < 2) {
- return NULL_TIME;
- }
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- len -= 2;
- greg.month = atoi( szTemp );
-
- /* DAY - 1..31 */
- if(len < 2) {
- return NULL_TIME;
- }
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- greg.day = atoi( szTemp );
- len -= 2;
-
- if(len >= 2) {
- /* HOUR 0..23 */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- greg.hour = atoi( szTemp );
- len -= 2;
- }
- if(len >= 2) {
- /* MINUTE 0..59 */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- greg.minute = atoi( szTemp );
- len -= 2;
- }
- if(len >= 2) {
- /* SECOND 0..59 */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- greg.second = atoi( szTemp );
- len -= 2;
- }
- return CFGregorianDateGetAbsoluteTime(greg, NULL);
-}
-
-/*
- * Parse a GeneralizedTime string into a CFAbsoluteTime. Returns NULL on parse error.
- * Fractional parts of a second are discarded.
- */
-CFAbsoluteTime genTimeToCFAbsTime(
- const CSSM_DATA *strData)
-{
- if((strData == NULL) || (strData->Data == NULL) || (strData->Length == 0)) {
- return NULL_TIME;
- }
-
- uint8 *timeStr = strData->Data;
- size_t timeStrLen = strData->Length;
-
- /* tolerate NULL terminated or not */
- if(timeStr[timeStrLen - 1] == '\0') {
- timeStrLen--;
- }
-
- /* start with a fresh editable copy */
- uint8 *str = (uint8 *)malloc(timeStrLen);
- uint32 strLen = 0;
-
- /*
- * If there is a decimal point, strip it and all trailing digits off
- */
- const uint8 *inCp = timeStr;
- uint8 *outCp = str;
- int foundDecimal = 0;
- int minutesOffset = 0;
- int hoursOffset = 0;
- bool minusOffset = false;
- bool isGMT = false;
- size_t toGo = timeStrLen;
-
- do {
- if(*inCp == '.') {
- if(foundDecimal) {
- /* only legal once */ {
- free(str);
- return NULL_TIME;
- }
- }
- foundDecimal++;
-
- /* skip the decimal point... */
- inCp++;
- toGo--;
- if(toGo == 0) {
- /* all done */
- break;
- }
- /* then all subsequent contiguous digits */
- while(isdigit(*inCp) && (toGo != 0)) {
- inCp++;
- toGo--;
- }
- } /* decimal point processing */
- else if((*inCp == '+') || (*inCp == '-')) {
- /* Time zone offset - handle 2 or 4 chars */
- if((toGo != 2) & (toGo != 4)) {
- free(str);
- return NULL_TIME;
- }
- if(*inCp == '-') {
- minusOffset = true;
- }
- inCp++;
- hoursOffset = (10 * (inCp[0] - '0')) + (inCp[1] - '0');
- toGo -= 2;
- if(toGo) {
- minutesOffset = (10 * (inCp[0] - '0')) + (inCp[1] - '0');
- toGo -= 2;
- }
- }
- else {
- *outCp++ = *inCp++;
- strLen++;
- toGo--;
- }
- } while(toGo != 0);
-
- if(str[strLen - 1] == 'Z') {
- isGMT = true;
- strLen--;
- }
-
- CFAbsoluteTime absTime;
- absTime = parseGenTime(str, strLen);
- free(str);
- if(absTime == NULL_TIME) {
- return NULL_TIME;
- }
-
- /* post processing needed? */
- if(isGMT) {
- /* Nope, string was in GMT */
- return absTime;
- }
- if((minutesOffset != 0) || (hoursOffset != 0)) {
- /* string contained explicit offset from GMT */
- if(minusOffset) {
- absTime -= (minutesOffset * 60);
- absTime -= (hoursOffset * 3600);
- }
- else {
- absTime += (minutesOffset * 60);
- absTime += (hoursOffset * 3600);
- }
- }
- else {
- /* implciit offset = local */
- CFTimeInterval tzDelta;
- CFTimeZoneRef localZone = CFTimeZoneCopySystem();
- tzDelta = CFTimeZoneGetSecondsFromGMT (localZone, CFAbsoluteTimeGetCurrent());
- CFRelease(localZone);
- absTime += tzDelta;
- }
- return absTime;
-}
-
-/*
- * Convert CFAbsoluteTime to generalized time string, GMT format (4 digit year,
- * trailing 'Z'). Caller allocated the output which is GENERAL_TIME_STRLEN+1 bytes.
- */
-void cfAbsTimeToGgenTime(
- CFAbsoluteTime absTime,
- char *genTime)
-{
- /* time zone = GMT */
- CFTimeZoneRef tz = CFTimeZoneCreateWithTimeIntervalFromGMT(NULL, 0.0);
- CFGregorianDate greg = CFAbsoluteTimeGetGregorianDate(absTime, tz);
- int seconds = (int)greg.second;
- sprintf(genTime, "%04d%02d%02d%02d%02d%02dZ",
- (int)greg.year, greg.month, greg.day, greg.hour,
- greg.minute, seconds);
-}
-
-void ocspdSha1(
- const void *data,
- CC_LONG len,
- unsigned char *md) // allocd by caller, CC_SHA1_DIGEST_LENGTH bytes
-{
- CC_SHA1_CTX ctx;
- CC_SHA1_Init(&ctx);
- CC_SHA1_Update(&ctx, data, len);
- CC_SHA1_Final(md, &ctx);
-}
-
-void ocspdMD5(
- const void *data,
- CC_LONG len,
- unsigned char *md) // allocd by caller, CC_MD5_DIGEST_LENGTH bytes
-{
- CC_MD5_CTX ctx;
- CC_MD5_Init(&ctx);
- CC_MD5_Update(&ctx, data, len);
- CC_MD5_Final(md, &ctx);
-}
-
-void ocspdMD4(
- const void *data,
- CC_LONG len,
- unsigned char *md) // allocd by caller, CC_MD4_DIGEST_LENGTH bytes
-{
- CC_MD4_CTX ctx;
- CC_MD4_Init(&ctx);
- CC_MD4_Update(&ctx, data, len);
- CC_MD4_Final(md, &ctx);
-}
-
-void ocspdSHA256(
- const void *data,
- CC_LONG len,
- unsigned char *md) // allocd by caller, CC_SHA256_DIGEST_LENGTH bytes
-{
- CC_SHA256_CTX ctx;
- CC_SHA256_Init(&ctx);
- CC_SHA256_Update(&ctx, data, len);
- CC_SHA256_Final(md, &ctx);
-}
-
-/*
- * How many items in a NULL-terminated array of pointers?
- */
-unsigned ocspdArraySize(
- const void **array)
-{
- unsigned count = 0;
- if (array) {
- while (*array++) {
- count++;
- }
- }
- return count;
-}
projects / apple / security.git / blobdiff