SECStatus
DER_GeneralizedTimeToTime(PRTime *dst, const SECItem *time)
{
/* Minimum valid GeneralizedTime is ccyymmddhhmmZ which is 13 bytes.
** Maximum valid GeneralizedTime is ccyymmddhhmmss+0000 which is 19 bytes.
** 20 should be large enough for all valid encoded times.
*/
unsigned int i;
char localBuf[20];
const char *end = NULL;
SECStatus rv;
if (!time || !time->data || time->len < 13 || time->len > 19) {
PORT_SetError(SEC_ERROR_INVALID_TIME);
return SECFailure;
}
for (i = 0; i < time->len; i++) {
if (time->data[i] == '\0') {
PORT_SetError(SEC_ERROR_INVALID_TIME);
return SECFailure;
}
localBuf[i] = time->data[i];
}
localBuf[i] = '\0';
rv = der_TimeStringToTime(dst, localBuf, GEN_STRING, &end);
if (rv == SECSuccess && *end != '\0') {
PORT_SetError(SEC_ERROR_INVALID_TIME);
return SECFailure;
}
return rv;
}
SECStatus
DER_GeneralizedTimeToTime(int64 *dst, const SECItem *time)
{
/* Minimum valid GeneralizedTime is ccyymmddhhmmZ which is 13 bytes.
** Maximum valid GeneralizedTime is ccyymmddhhmmss+0000 which is 19 bytes.
** 20 should be large enough for all valid encoded times.
*/
int len;
char localBuf[20];
if (!time || !time->data || time->len < 13) {
PORT_SetError(SEC_ERROR_INVALID_TIME);
return SECFailure;
}
len = PR_MIN(time->len, sizeof localBuf);
memcpy(localBuf, time->data, len);
while (len < sizeof localBuf) {
localBuf[len++] = '\0';
}
return der_TimeStringToTime(dst, localBuf, GEN_STRING);
}
/* The caller of DER_AsciiToItem MUST ENSURE that either
** a) "string" points to a null-terminated ASCII string, or
** b) "string" points to a buffer containing a valid UTCTime,
** whether null terminated or not, or
** c) "string" contains at least 19 characters, with or without null char.
** otherwise, this function may UMR and/or crash.
** It suffices to ensure that the input "string" is at least 17 bytes long.
*/
SECStatus
DER_AsciiToTime(int64 *dst, const char *string)
{
return der_TimeStringToTime(dst, string, UTC_STRING);
}
/* The caller of DER_AsciiToItem MUST ENSURE that either
** a) "string" points to a null-terminated ASCII string, or
** b) "string" points to a buffer containing a valid UTCTime,
** whether null terminated or not, or
** c) "string" contains at least 19 characters, with or without null char.
** otherwise, this function may UMR and/or crash.
** It suffices to ensure that the input "string" is at least 17 bytes long.
*/
SECStatus
DER_AsciiToTime(PRTime *dst, const char *string)
{
return der_TimeStringToTime(dst, string, UTC_STRING, NULL);
}