Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 173 insertions, 0 deletions

diff --git a/sal/rtl/uuid.cxx b/sal/rtl/uuid.cxx
new file mode 100644
index 000000000..130be1245
--- /dev/null
+++ b/sal/rtl/uuid.cxx
@@ -0,0 +1,173 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include <osl/mutex.hxx>
+#include <rtl/random.h>
+#include <rtl/uuid.h>
+#include <rtl/digest.h>
+
+#define SWAP_INT32_TO_NETWORK(x)\
+               { sal_uInt32 y = x;\
+                 sal_uInt8 *p = reinterpret_cast<sal_uInt8 *>(&(x)); \
+                 p[0] = static_cast<sal_uInt8>( ( y >> 24 ) & 0xff );\
+                 p[1] = static_cast<sal_uInt8>( ( y >> 16 ) & 0xff );\
+                 p[2] = static_cast<sal_uInt8>( ( y >> 8 )  & 0xff );\
+                 p[3] = static_cast<sal_uInt8>( ( y ) & 0xff);\
+               }
+#define SWAP_INT16_TO_NETWORK(x)\
+               { sal_uInt16 y = x;\
+                 sal_uInt8 *p = reinterpret_cast<sal_uInt8 *>(&(x)); \
+                 p[0] = static_cast<sal_uInt8>( ( y >> 8 )  & 0xff );\
+                 p[1] = static_cast<sal_uInt8>( ( y ) & 0xff);\
+               }
+
+#define SWAP_NETWORK_TO_INT16(x)\
+               { sal_uInt16 y = x;\
+                 sal_uInt8 *p = reinterpret_cast<sal_uInt8 *>(&(y));\
+                 x = ( ( (static_cast<sal_uInt16>(p[0])) & 0xff) << 8 ) |\
+                     ( (  static_cast<sal_uInt16>(p[1])) & 0xff);\
+               }
+#define SWAP_NETWORK_TO_INT32(x)\
+               { sal_uInt32 y = x;\
+                 sal_uInt8 *p = reinterpret_cast<sal_uInt8 *>(&(y)); \
+                 x = ( ( (static_cast<sal_uInt32>(p[0])) & 0xff) << 24 ) |\
+                     ( ( (static_cast<sal_uInt32>(p[1])) & 0xff) << 16 ) |\
+                     ( ( (static_cast<sal_uInt32>(p[2])) & 0xff) << 8  ) |\
+                     ( (  static_cast<sal_uInt32>(p[3])) & 0xff);\
+               }
+
+namespace {
+
+struct UUID
+{
+      sal_uInt32          time_low;
+      sal_uInt16          time_mid;
+      sal_uInt16          time_hi_and_version;
+      sal_uInt8           clock_seq_hi_and_reserved;
+      sal_uInt8           clock_seq_low;
+      sal_uInt8           node[6];
+};
+
+}
+
+static void write_v3( sal_uInt8 *pUuid  )
+{
+    UUID uuid;
+    // copy to avoid alignment problems
+    memcpy(&uuid, pUuid, 16);
+
+    SWAP_NETWORK_TO_INT32(uuid.time_low);
+    SWAP_NETWORK_TO_INT16(uuid.time_mid);
+    SWAP_NETWORK_TO_INT16(uuid.time_hi_and_version);
+
+    /* put in the variant and version bits */
+    uuid.time_hi_and_version &= 0x0FFF;
+    uuid.time_hi_and_version |= (3 << 12);
+    uuid.clock_seq_hi_and_reserved &= 0x3F;
+    uuid.clock_seq_hi_and_reserved |= 0x80;
+
+    SWAP_INT32_TO_NETWORK(uuid.time_low);
+    SWAP_INT16_TO_NETWORK(uuid.time_mid);
+    SWAP_INT16_TO_NETWORK(uuid.time_hi_and_version);
+
+    memcpy(pUuid, &uuid, 16);
+}
+
+extern "C" void SAL_CALL rtl_createUuid(sal_uInt8 *pTargetUUID ,
+                                        SAL_UNUSED_PARAMETER const sal_uInt8 *,
+                                        SAL_UNUSED_PARAMETER sal_Bool)
+{
+    {
+        static rtlRandomPool pool = []() {
+            rtlRandomPool aPool = rtl_random_createPool();
+            if (!aPool)
+            {
+                abort();
+                // only possible way to signal failure here (rtl_createUuid
+                // being part of a fixed C API)
+            }
+            return aPool;
+        }();
+
+        osl::MutexGuard g(osl::Mutex::getGlobalMutex());
+        if (rtl_random_getBytes(pool, pTargetUUID, 16) != rtl_Random_E_None)
+        {
+            abort();
+                // only possible way to signal failure here (rtl_createUuid
+                // being part of a fixed C API)
+        }
+    }
+    // See ITU-T Recommendation X.667:
+    pTargetUUID[6] &= 0x0F;
+    pTargetUUID[6] |= 0x40;
+    pTargetUUID[8] &= 0x3F;
+    pTargetUUID[8] |= 0x80;
+}
+
+extern "C" void SAL_CALL rtl_createNamedUuid(sal_uInt8 *pTargetUUID,
+                                             const sal_uInt8 *pNameSpaceUUID,
+                                             const rtl_String *pName )
+{
+    rtlDigest digest = rtl_digest_createMD5();
+
+    rtl_digest_updateMD5(digest, pNameSpaceUUID, 16);
+    rtl_digest_updateMD5(digest, pName->buffer, pName->length);
+
+    rtl_digest_getMD5(digest, pTargetUUID, 16);
+    rtl_digest_destroyMD5(digest);
+
+    write_v3(pTargetUUID);
+}
+
+extern "C" sal_Int32 SAL_CALL rtl_compareUuid(const sal_uInt8 *pUUID1, const sal_uInt8 *pUUID2)
+{
+    int i;
+    UUID u1;
+    UUID u2;
+    memcpy(&u1, pUUID1, 16 );
+    memcpy(&u2, pUUID2, 16 );
+
+    SWAP_NETWORK_TO_INT32(u1.time_low);
+    SWAP_NETWORK_TO_INT16(u1.time_mid);
+    SWAP_NETWORK_TO_INT16(u1.time_hi_and_version);
+
+    SWAP_NETWORK_TO_INT32(u2.time_low);
+    SWAP_NETWORK_TO_INT16(u2.time_mid);
+    SWAP_NETWORK_TO_INT16(u2.time_hi_and_version);
+
+#define CHECK(f1, f2) if (f1 != f2) return f1 < f2 ? -1 : 1;
+    CHECK(u1.time_low, u2.time_low);
+    CHECK(u1.time_mid, u2.time_mid);
+    CHECK(u1.time_hi_and_version, u2.time_hi_and_version);
+    CHECK(u1.clock_seq_hi_and_reserved, u2.clock_seq_hi_and_reserved);
+    CHECK(u1.clock_seq_low, u2.clock_seq_low);
+    for (i = 0; i < 6; i++)
+    {
+        if (u1.node[i] < u2.node[i])
+            return -1;
+        if (u1.node[i] > u2.node[i])
+            return 1;
+    }
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */