static ASN1_UTCTIME *
ASN1_UTCTIME_adj_internal(ASN1_UTCTIME *s, time_t t, int offset_day,
long offset_sec)
{
char *p;
struct tm *ts;
struct tm data;
ts = gmtime_r(&t, &data);
if (ts == NULL)
return (NULL);
if (offset_day || offset_sec) {
if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
return NULL;
}
if ((p = utctime_string_from_tm(ts)) == NULL) {
ASN1err(ASN1_F_ASN1_UTCTIME_ADJ, ERR_R_MALLOC_FAILURE);
return (NULL);
}
free(s->data);
s->data = p;
s->length = strlen(p);
s->type = V_ASN1_UTCTIME;
return (s);
}
static ASN1_TIME *
ASN1_TIME_adj_internal(ASN1_TIME *s, time_t t, int offset_day, long offset_sec,
int mode)
{
int allocated = 0;
struct tm tm;
size_t len;
char * p;
if (gmtime_r(&t, &tm) == NULL)
return (NULL);
if (offset_day || offset_sec) {
if (!OPENSSL_gmtime_adj(&tm, offset_day, offset_sec))
return (NULL);
}
switch (mode) {
case V_ASN1_UTCTIME:
p = utctime_string_from_tm(&tm);
break;
case V_ASN1_GENERALIZEDTIME:
p = gentime_string_from_tm(&tm);
break;
case RFC5280:
p = rfc5280_string_from_tm(&tm);
break;
default:
return (NULL);
}
if (p == NULL) {
ASN1error(ASN1_R_ILLEGAL_TIME_VALUE);
return (NULL);
}
if (s == NULL) {
if ((s = ASN1_TIME_new()) == NULL)
return (NULL);
allocated = 1;
}
len = strlen(p);
switch (len) {
case GENTIME_LENGTH:
s->type = V_ASN1_GENERALIZEDTIME;
break;
case UTCTIME_LENGTH:
s->type = V_ASN1_UTCTIME;
break;
default:
if (allocated)
ASN1_TIME_free(s);
free(p);
return (NULL);
}
free(s->data);
s->data = p;
s->length = len;
return (s);
}
/* Format a time correctly for an X509 object as per RFC 5280 */
char *
rfc5280_string_from_tm(struct tm *tm)
{
char *ret = NULL;
int year;
year = tm->tm_year + 1900;
if (year < 1950 || year > 9999)
return (NULL);
if (year < 2050)
ret = utctime_string_from_tm(tm);
else
ret = gentime_string_from_tm(tm);
return (ret);
}