Move ossl_asn1_string_to_time_t() to libtestutil

It is not used anywhere else than in tests.

Fixes #22965

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23269)

1 files changed, 0 insertions, 75 deletions

diff --git a/crypto/asn1/a_time.c b/crypto/asn1/a_time.c
index 96ee63d310..7dfbc5faab 100644
--- a/crypto/asn1/a_time.c
+++ b/crypto/asn1/a_time.c
@@ -591,78 +591,3 @@ int ASN1_TIME_compare(const ASN1_TIME *a, const ASN1_TIME *b)
         return -1;
     return 0;
 }
-
-/*
- * tweak for Windows
- */
-#ifdef WIN32
-# define timezone _timezone
-#endif
-
-#if defined(__FreeBSD__) || defined(__wasi__)
-# define USE_TIMEGM
-#endif
-
-time_t ossl_asn1_string_to_time_t(const char *asn1_string)
-{
-    ASN1_TIME *timestamp_asn1 = NULL;
-    struct tm *timestamp_tm = NULL;
-#if defined(__DJGPP__)
-    char *tz = NULL;
-#elif !defined(USE_TIMEGM)
-    time_t timestamp_local;
-#endif
-    time_t timestamp_utc;
-
-    timestamp_asn1 = ASN1_TIME_new();
-    if (!ASN1_TIME_set_string(timestamp_asn1, asn1_string))
-    {
-        ASN1_TIME_free(timestamp_asn1);
-        return -1;
-    }
-
-    timestamp_tm = OPENSSL_malloc(sizeof(*timestamp_tm));
-    if (timestamp_tm == NULL) {
-        ASN1_TIME_free(timestamp_asn1);
-        return -1;
-    }
-    if (!(ASN1_TIME_to_tm(timestamp_asn1, timestamp_tm))) {
-        OPENSSL_free(timestamp_tm);
-        ASN1_TIME_free(timestamp_asn1);
-        return -1;
-    }
-    ASN1_TIME_free(timestamp_asn1);
-
-#if defined(__DJGPP__)
-    /*
-     * This is NOT thread-safe.  Do not use this method for platforms other
-     * than djgpp.
-     */
-    tz = getenv("TZ");
-    if (tz != NULL) {
-        tz = OPENSSL_strdup(tz);
-        if (tz == NULL) {
-            OPENSSL_free(timestamp_tm);
-            return -1;
-        }
-    }
-    setenv("TZ", "UTC", 1);
-
-    timestamp_utc = mktime(timestamp_tm);
-
-    if (tz != NULL) {
-        setenv("TZ", tz, 1);
-        OPENSSL_free(tz);
-    } else {
-        unsetenv("TZ");
-    }
-#elif defined(USE_TIMEGM)
-    timestamp_utc = timegm(timestamp_tm);
-#else
-    timestamp_local = mktime(timestamp_tm);
-    timestamp_utc = timestamp_local - timezone;
-#endif
-    OPENSSL_free(timestamp_tm);
-
-    return timestamp_utc;
-}