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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 03:01:46 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 03:01:46 +0000
commitf8fe689a81f906d1b91bb3220acde2a4ecb14c5b (patch)
tree26484e9d7e2c67806c2d1760196ff01aaa858e8c /src/VBox/Runtime/common/string/RTStrNICmpAscii.cpp
parentInitial commit. (diff)
downloadvirtualbox-f8fe689a81f906d1b91bb3220acde2a4ecb14c5b.tar.xz
virtualbox-f8fe689a81f906d1b91bb3220acde2a4ecb14c5b.zip
Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/common/string/RTStrNICmpAscii.cpp')
-rw-r--r--src/VBox/Runtime/common/string/RTStrNICmpAscii.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/RTStrNICmpAscii.cpp b/src/VBox/Runtime/common/string/RTStrNICmpAscii.cpp
new file mode 100644
index 00000000..c07e39bd
--- /dev/null
+++ b/src/VBox/Runtime/common/string/RTStrNICmpAscii.cpp
@@ -0,0 +1,80 @@
+/* $Id: RTStrNICmpAscii.cpp $ */
+/** @file
+ * IPRT - RTStrNICmpAscii.
+ */
+
+/*
+ * Copyright (C) 2010-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#include <iprt/string.h>
+#include "internal/iprt.h"
+
+#include <iprt/assert.h>
+#include <iprt/ctype.h>
+
+
+RTDECL(int) RTStrNICmpAscii(const char *psz1, const char *psz2, size_t cchMax)
+{
+ if (cchMax == 0)
+ return 0;
+ if (psz1 == psz2)
+ return 0;
+ if (!psz1)
+ return -1;
+ if (!psz2)
+ return 1;
+
+ for (;;)
+ {
+ RTUNICP uc1;
+ int rc = RTStrGetCpNEx(&psz1, &cchMax, &uc1);
+ if (RT_SUCCESS(rc))
+ {
+ unsigned char uch2 = *psz2++; Assert(uch2 < 0x80);
+
+ /* compare */
+ int iDiff = uc1 - uch2;
+ if (iDiff)
+ {
+ if (uc1 >= 0x80)
+ return 1;
+
+ iDiff = RT_C_TO_LOWER(uc1) - RT_C_TO_LOWER(uch2); /* Return lower cased diff! */
+ if (iDiff)
+ return iDiff;
+ }
+
+ if (uch2 && cchMax)
+ { /* likely */ }
+ else
+ return 0;
+ }
+ /* Hit some bad encoding, continue in case sensitive mode. */
+ else
+ return RTStrNCmp(psz1 - 1, psz2, cchMax + 1);
+ }
+}
+RT_EXPORT_SYMBOL(RTStrNICmpAscii);
+