- struct tm *tm;
- int offset;
- int year;
-
-#define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
-
- if (s->data[12] == 'Z')
- offset=0;
- else
- {
- offset = g2(s->data+13)*60+g2(s->data+15);
- if (s->data[12] == '-')
- offset = -offset;
- }
-
- t -= offset*60; /* FIXME: may overflow in extreme cases */
-
-#if defined(THREADS) && !defined(WIN32) && !defined(__CYGWIN32__)
- { struct tm data; gmtime_r(&t, &data); tm = &data; }
-#else
- tm = gmtime(&t);
-#endif
-
-#define return_cmp(a,b) if ((a)<(b)) return -1; else if ((a)>(b)) return 1
- year = g2(s->data);
- if (year < 50)
- year += 100;
- return_cmp(year, tm->tm_year);
- return_cmp(g2(s->data+2) - 1, tm->tm_mon);
- return_cmp(g2(s->data+4), tm->tm_mday);
- return_cmp(g2(s->data+6), tm->tm_hour);
- return_cmp(g2(s->data+8), tm->tm_min);
- return_cmp(g2(s->data+10), tm->tm_sec);
-#undef g2
-#undef return_cmp
-
+ struct tm stm, ttm;
+ int day, sec;
+
+ if (!asn1_utctime_to_tm(&stm, s))
+ return -2;
+
+ if (!OPENSSL_gmtime(&t, &ttm))
+ return -2;
+
+ if (!OPENSSL_gmtime_diff(&day, &sec, &stm, &ttm))
+ return -2;
+
+ if (day > 0)
+ return 1;
+ if (day < 0)
+ return -1;
+ if (sec > 0)
+ return 1;
+ if (sec < 0)
+ return -1;