+++ /dev/null
-/*
- * Copyright (c) 2002,2011-2012,2014 Apple Inc. All Rights Reserved.
- *
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (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, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
- * specific language governing rights and limitations under the License.
- */
-
-/*
- * cuTimeStr.cpp - time string routines
- */
-#include "cuTimeStr.h"
-#include "cuCdsaUtils.h"
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <pthread.h>
-
-/*
- * Given a string containing either a UTC-style or "generalized time"
- * time string, convert to a struct tm (in GMT/UTC). Returns nonzero on
- * error.
- */
-int cuTimeStringToTm(
- const char *str,
- unsigned len,
- struct tm *tmp)
-{
- char szTemp[5];
- unsigned isUtc = 0;
- unsigned noSeconds = 0;
- int x;
- unsigned i;
- char *cp;
-
- if((str == NULL) || (len == 0) || (tmp == NULL)) {
- return 1;
- }
-
- /* tolerate NULL terminated or not */
- if(str[len - 1] == '\0') {
- len--;
- }
- switch(len) {
- case UTC_TIME_NOSEC_LEN: // 2-digit year, no seconds, not y2K compliant
- isUtc = 1;
- noSeconds = 1;
- break;
- case UTC_TIME_STRLEN: // 2-digit year, not Y2K compliant
- isUtc = 1;
- break;
- case GENERALIZED_TIME_STRLEN: // 4-digit year
- break;
- default: // unknown format
- return 1;
- }
-
- cp = (char *)str;
-
- /* check that all characters except last are digits */
- for(i=0; i<(len - 1); i++) {
- if ( !(isdigit(cp[i])) ) {
- return 1;
- }
- }
-
- /* check last character is a 'Z' */
- if(cp[len - 1] != 'Z' ) {
- return 1;
- }
-
- /* YEAR */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- if(!isUtc) {
- /* two more digits */
- szTemp[2] = *cp++;
- szTemp[3] = *cp++;
- szTemp[4] = '\0';
- }
- else {
- szTemp[2] = '\0';
- }
- x = atoi( szTemp );
- if(isUtc) {
- /*
- * 2-digit year.
- * 0 <= year < 50 : assume century 21
- * 50 <= year < 70 : illegal per PKIX, though we tolerate
- * 70 < year <= 99 : assume century 20
- */
- if(x < 50) {
- x += 2000;
- }
- /*
- else if(x < 70) {
- return 1;
- }
- */
- else {
- /* century 20 */
- x += 1900;
- }
- }
- /* by definition - tm_year is year - 1900 */
- tmp->tm_year = x - 1900;
-
- /* MONTH */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- x = atoi( szTemp );
- /* in the string, months are from 1 to 12 */
- if((x > 12) || (x <= 0)) {
- return 1;
- }
- /* in a tm, 0 to 11 */
- tmp->tm_mon = x - 1;
-
- /* DAY */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- x = atoi( szTemp );
- /* 1..31 in both formats */
- if((x > 31) || (x <= 0)) {
- return 1;
- }
- tmp->tm_mday = x;
-
- /* HOUR */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- x = atoi( szTemp );
- if((x > 23) || (x < 0)) {
- return 1;
- }
- tmp->tm_hour = x;
-
- /* MINUTE */
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- x = atoi( szTemp );
- if((x > 59) || (x < 0)) {
- return 1;
- }
- tmp->tm_min = x;
-
- /* SECOND */
- if(noSeconds) {
- tmp->tm_sec = 0;
- }
- else {
- szTemp[0] = *cp++;
- szTemp[1] = *cp++;
- szTemp[2] = '\0';
- x = atoi( szTemp );
- if((x > 59) || (x < 0)) {
- return 1;
- }
- tmp->tm_sec = x;
- }
- return 0;
-}
-
-#define MAX_TIME_STR_LEN 30
-
-/* protects time(), gmtime() */
-static pthread_mutex_t timeMutex = PTHREAD_MUTEX_INITIALIZER;
-
-char *cuTimeAtNowPlus(int secFromNow,
- timeSpec spec)
-{
- struct tm utc;
- char *outStr;
- time_t baseTime;
-
- pthread_mutex_lock(&timeMutex);
- baseTime = time(NULL);
- baseTime += (time_t)secFromNow;
- utc = *gmtime(&baseTime);
- pthread_mutex_unlock(&timeMutex);
-
- outStr = (char *)APP_MALLOC(MAX_TIME_STR_LEN);
-
- switch(spec) {
- case TIME_UTC:
- /* UTC - 2 year digits - code which parses this assumes that
- * (2-digit) years between 0 and 49 are in century 21 */
- if(utc.tm_year >= 100) {
- utc.tm_year -= 100;
- }
- sprintf(outStr, "%02d%02d%02d%02d%02d%02dZ",
- utc.tm_year /* + 1900 */, utc.tm_mon + 1,
- utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec);
- break;
- case TIME_GEN:
- sprintf(outStr, "%04d%02d%02d%02d%02d%02dZ",
- /* note year is relative to 1900, hopefully it'll
- * have four valid digits! */
- utc.tm_year + 1900, utc.tm_mon + 1,
- utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec);
- break;
- case TIME_CSSM:
- sprintf(outStr, "%04d%02d%02d%02d%02d%02d",
- /* note year is relative to 1900, hopefully it'll have
- * four valid digits! */
- utc.tm_year + 1900, utc.tm_mon + 1,
- utc.tm_mday, utc.tm_hour, utc.tm_min, utc.tm_sec);
- break;
- }
- return outStr;
-}
-
-/*
- * Convert a CSSM_X509_TIME, which can be in any of three forms (UTC,
- * generalized, or CSSM_TIMESTRING) into a CSSM_TIMESTRING. Caller
- * must free() the result. Returns NULL if x509time is badly formed.
- */
-char *cuX509TimeToCssmTimestring(
- const CSSM_X509_TIME *x509Time,
- unsigned *rtnLen) // for caller's convenience
-{
- int len = (int)x509Time->time.Length;
- const char *inStr = (char *)x509Time->time.Data;
- // not NULL terminated!
- char *rtn;
-
- *rtnLen = 0;
- if((len == 0) || (inStr == NULL)) {
- return NULL;
- }
- rtn = (char *)malloc(CSSM_TIME_STRLEN + 1);
- rtn[0] = '\0';
- switch(len) {
- case UTC_TIME_STRLEN:
- {
- /* infer century and prepend to output */
- char tmp[3];
- int year;
- tmp[0] = inStr[0];
- tmp[1] = inStr[1];
- tmp[2] = '\0';
- year = atoi(tmp);
-
- /*
- * 0 <= year < 50 : assume century 21
- * 50 <= year < 70 : illegal per PKIX
- * 70 < year <= 99 : assume century 20
- */
- if(year < 50) {
- /* century 21 */
- strcpy(rtn, "20");
- }
- else if(year < 70) {
- free(rtn);
- return NULL;
- }
- else {
- /* century 20 */
- strcpy(rtn, "19");
- }
- memmove(rtn + 2, inStr, len - 1); // don't copy the Z
- break;
- }
- case CSSM_TIME_STRLEN:
- memmove(rtn, inStr, len); // trivial case
- break;
- case GENERALIZED_TIME_STRLEN:
- memmove(rtn, inStr, len - 1); // don't copy the Z
- break;
-
- default:
- free(rtn);
- return NULL;
- }
- rtn[CSSM_TIME_STRLEN] = '\0';
- *rtnLen = CSSM_TIME_STRLEN;
- return rtn;
-}
-
projects / apple / security.git / blobdiff