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From ddc6dacd06b41ed5001b1c884b5d5c9e0a70e275 Mon Sep 17 00:00:00 2001
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From: akallabeth <akallabeth@posteo.net>
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Date: Thu, 10 Nov 2022 15:54:28 +0100
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Subject: [PATCH] [winpr, crt] Added wcsstr implementation
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(cherry picked from commit 6c034ba6117a4efc9266e845fe9a9a92ed4ee61d)
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---
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winpr/include/winpr/string.h | 3 +++
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winpr/libwinpr/crt/string.c | 20 ++++++++++++++++++++
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2 files changed, 23 insertions(+)
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diff --git a/winpr/include/winpr/string.h b/winpr/include/winpr/string.h
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index 3b907c444..2d7126210 100644
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--- a/winpr/include/winpr/string.h
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+++ b/winpr/include/winpr/string.h
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@@ -62,6 +62,8 @@ extern "C"
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WINPR_API size_t _wcslen(const WCHAR* str);
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WINPR_API size_t _wcsnlen(const WCHAR* str, size_t maxNumberOfElements);
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+ WINPR_API WCHAR* _wcsstr(const WCHAR* str, const WCHAR* strSearch);
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+
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WINPR_API WCHAR* _wcschr(const WCHAR* str, WCHAR c);
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WINPR_API WCHAR* _wcsrchr(const WCHAR* str, WCHAR c);
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@@ -74,6 +76,7 @@ extern "C"
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#define _wcsncmp wcsncmp
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#define _wcslen wcslen
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#define _wcsnlen wcsnlen
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+#define _wcsstr wcsstr
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#define _wcschr wcschr
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#define _wcsrchr wcsrchr
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diff --git a/winpr/libwinpr/crt/string.c b/winpr/libwinpr/crt/string.c
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index 5dcf4b3f1..efd7d166c 100644
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--- a/winpr/libwinpr/crt/string.c
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+++ b/winpr/libwinpr/crt/string.c
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@@ -147,6 +147,26 @@ size_t _wcsnlen(const WCHAR* str, size_t max)
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return x;
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}
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+/* _wcsstr -> wcsstr */
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+
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+WCHAR* _wcsstr(const WCHAR* str, const WCHAR* strSearch)
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+{
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+ assert(str);
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+ assert(strSearch);
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+
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+ if (strSearch[0] == '\0')
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+ return str;
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+
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+ const size_t searchLen = _wcslen(strSearch);
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+ while (*str)
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+ {
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+ if (_wcsncmp(str, strSearch, searchLen) == 0)
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+ return str;
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+ str++;
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+ }
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+ return NULL;
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+}
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+
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/* _wcschr -> wcschr */
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WCHAR* _wcschr(const WCHAR* str, WCHAR c)
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--
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2.37.1
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