time: move OSSL_TIME to libcrypto

Keep building it for libssl without exposing any symbols.

Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19082)

1 files changed, 48 insertions, 0 deletions

diff --git a/crypto/time.c b/crypto/time.c
new file mode 100644
index 0000000000..a90aa76788
--- /dev/null
+++ b/crypto/time.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <errno.h>
+#include <openssl/err.h>
+#include "internal/time.h"
+
+OSSL_TIME ossl_time_now(void)
+{
+    OSSL_TIME r;
+
+#if defined(_WIN32)
+    SYSTEMTIME st;
+    union {
+        unsigned __int64 ul;
+        FILETIME ft;
+    } now;
+
+    GetSystemTime(&st);
+    SystemTimeToFileTime(&st, &now.ft);
+    /* re-bias to 1/1/1970 */
+# ifdef  __MINGW32__
+    now.ul -= 116444736000000000ULL;
+# else
+    now.ul -= 116444736000000000UI64;
+# endif
+    r.t = ((uint64_t)now.ul) * (OSSL_TIME_SECOND / 10000000);
+#else   /* defined(_WIN32) */
+    struct timeval t;
+
+    if (gettimeofday(&t, NULL) < 0) {
+        ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(),
+                       "calling gettimeofday()");
+        return ossl_time_zero();
+    }
+    if (t.tv_sec <= 0)
+        r.t = t.tv_usec <= 0 ? 0 : t.tv_usec * OSSL_TIME_US;
+    else
+        r.t = ((uint64_t)t.tv_sec * 1000000 + t.tv_usec) * OSSL_TIME_US;
+#endif  /* defined(_WIN32) */
+    return r;
+}