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Diffstat (limited to 'security/nss/lib/util/sectime.c')
| -rw-r--r-- | security/nss/lib/util/sectime.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/security/nss/lib/util/sectime.c b/security/nss/lib/util/sectime.c new file mode 100644 index 000000000..11ee5ffeb --- /dev/null +++ b/security/nss/lib/util/sectime.c @@ -0,0 +1,163 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "prtime.h" +#include "secder.h" +#include "secitem.h" +#include "secerr.h" + +static char *DecodeUTCTime2FormattedAscii(SECItem *utcTimeDER, char *format); +static char *DecodeGeneralizedTime2FormattedAscii(SECItem *generalizedTimeDER, char *format); + +/* convert DER utc time to ascii time string */ +char * +DER_UTCTimeToAscii(SECItem *utcTime) +{ + return (DecodeUTCTime2FormattedAscii(utcTime, "%a %b %d %H:%M:%S %Y")); +} + +/* convert DER utc time to ascii time string, only include day, not time */ +char * +DER_UTCDayToAscii(SECItem *utctime) +{ + return (DecodeUTCTime2FormattedAscii(utctime, "%a %b %d, %Y")); +} + +/* convert DER generalized time to ascii time string, only include day, + not time */ +char * +DER_GeneralizedDayToAscii(SECItem *gentime) +{ + return (DecodeGeneralizedTime2FormattedAscii(gentime, "%a %b %d, %Y")); +} + +/* convert DER generalized or UTC time to ascii time string, only include + day, not time */ +char * +DER_TimeChoiceDayToAscii(SECItem *timechoice) +{ + switch (timechoice->type) { + + case siUTCTime: + return DER_UTCDayToAscii(timechoice); + + case siGeneralizedTime: + return DER_GeneralizedDayToAscii(timechoice); + + default: + PORT_Assert(0); + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return NULL; + } +} + +char * +CERT_UTCTime2FormattedAscii(PRTime utcTime, char *format) +{ + PRExplodedTime printableTime; + char *timeString; + + /* Converse time to local time and decompose it into components */ + PR_ExplodeTime(utcTime, PR_LocalTimeParameters, &printableTime); + + timeString = (char *)PORT_Alloc(256); + + if (timeString) { + if (!PR_FormatTime(timeString, 256, format, &printableTime)) { + PORT_Free(timeString); + timeString = NULL; + } + } + + return (timeString); +} + +char * +CERT_GenTime2FormattedAscii(PRTime genTime, char *format) +{ + PRExplodedTime printableTime; + char *timeString; + + /* Decompose time into components */ + PR_ExplodeTime(genTime, PR_GMTParameters, &printableTime); + + timeString = (char *)PORT_Alloc(256); + + if (timeString) { + if (!PR_FormatTime(timeString, 256, format, &printableTime)) { + PORT_Free(timeString); + timeString = NULL; + PORT_SetError(SEC_ERROR_OUTPUT_LEN); + } + } + + return (timeString); +} + +/* convert DER utc time to ascii time string, The format of the time string + depends on the input "format" + */ +static char * +DecodeUTCTime2FormattedAscii(SECItem *utcTimeDER, char *format) +{ + PRTime utcTime; + int rv; + + rv = DER_UTCTimeToTime(&utcTime, utcTimeDER); + if (rv) { + return (NULL); + } + return (CERT_UTCTime2FormattedAscii(utcTime, format)); +} + +/* convert DER utc time to ascii time string, The format of the time string + depends on the input "format" + */ +static char * +DecodeGeneralizedTime2FormattedAscii(SECItem *generalizedTimeDER, char *format) +{ + PRTime generalizedTime; + int rv; + + rv = DER_GeneralizedTimeToTime(&generalizedTime, generalizedTimeDER); + if (rv) { + return (NULL); + } + return (CERT_GeneralizedTime2FormattedAscii(generalizedTime, format)); +} + +/* decode a SECItem containing either a SEC_ASN1_GENERALIZED_TIME + or a SEC_ASN1_UTC_TIME */ + +SECStatus +DER_DecodeTimeChoice(PRTime *output, const SECItem *input) +{ + switch (input->type) { + case siGeneralizedTime: + return DER_GeneralizedTimeToTime(output, input); + + case siUTCTime: + return DER_UTCTimeToTime(output, input); + + default: + PORT_SetError(SEC_ERROR_INVALID_ARGS); + PORT_Assert(0); + return SECFailure; + } +} + +/* encode a PRTime to an ASN.1 DER SECItem containing either a + SEC_ASN1_GENERALIZED_TIME or a SEC_ASN1_UTC_TIME */ + +SECStatus +DER_EncodeTimeChoice(PLArenaPool *arena, SECItem *output, PRTime input) +{ + SECStatus rv; + + rv = DER_TimeToUTCTimeArena(arena, output, input); + if (rv == SECSuccess || PORT_GetError() != SEC_ERROR_INVALID_ARGS) { + return rv; + } + return DER_TimeToGeneralizedTimeArena(arena, output, input); +} |