1 files changed, 81 insertions, 0 deletions
diff --git a/openssl-1.1.0h/test/gmdifftest.c b/openssl-1.1.0h/test/gmdifftest.c
new file mode 100644
index 0000000..73c910d
--- /dev/null
+++ b/openssl-1.1.0h/test/gmdifftest.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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 <openssl/crypto.h>
+#include <stdio.h>
+
+#define SECS_PER_DAY (24 * 60 * 60)
+
+/*
+ * Time checking test code. Check times are identical for a wide range of
+ * offsets. This should be run on a machine with 64 bit time_t or it will
+ * trigger the very errors the routines fix.
+ */
+
+static int check_time(long offset)
+{
+    struct tm tm1, tm2, o1;
+    int off_day, off_sec;
+    long toffset;
+    time_t t1, t2;
+    time(&t1);
+
+    t2 = t1 + offset;
+    OPENSSL_gmtime(&t2, &tm2);
+    OPENSSL_gmtime(&t1, &tm1);
+    o1 = tm1;
+    OPENSSL_gmtime_adj(&tm1, 0, offset);
+    if ((tm1.tm_year != tm2.tm_year) ||
+        (tm1.tm_mon != tm2.tm_mon) ||
+        (tm1.tm_mday != tm2.tm_mday) ||
+        (tm1.tm_hour != tm2.tm_hour) ||
+        (tm1.tm_min != tm2.tm_min) || (tm1.tm_sec != tm2.tm_sec)) {
+        fprintf(stderr, "TIME ERROR!!\n");
+        fprintf(stderr, "Time1: %d/%d/%d, %d:%02d:%02d\n",
+                tm2.tm_mday, tm2.tm_mon + 1, tm2.tm_year + 1900,
+                tm2.tm_hour, tm2.tm_min, tm2.tm_sec);
+        fprintf(stderr, "Time2: %d/%d/%d, %d:%02d:%02d\n",
+                tm1.tm_mday, tm1.tm_mon + 1, tm1.tm_year + 1900,
+                tm1.tm_hour, tm1.tm_min, tm1.tm_sec);
+        return 0;
+    }
+    if (!OPENSSL_gmtime_diff(&off_day, &off_sec, &o1, &tm1))
+        return 0;
+    toffset = (long)off_day *SECS_PER_DAY + off_sec;
+    if (offset != toffset) {
+        fprintf(stderr, "TIME OFFSET ERROR!!\n");
+        fprintf(stderr, "Expected %ld, Got %ld (%d:%d)\n",
+                offset, toffset, off_day, off_sec);
+        return 0;
+    }
+    return 1;
+}
+
+int main(int argc, char **argv)
+{
+    long offset;
+    int fails;
+
+    if (sizeof(time_t) < 8) {
+        fprintf(stderr, "Skipping; time_t is less than 64-bits\n");
+        return 0;
+    }
+    for (fails = 0, offset = 0; offset < 1000000; offset++) {
+        if (!check_time(offset))
+            fails++;
+        if (!check_time(-offset))
+            fails++;
+        if (!check_time(offset * 1000))
+            fails++;
+        if (!check_time(-offset * 1000))
+            fails++;
+    }
+
+    return fails ? 1 : 0;
+}