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Diffstat (limited to 'libs/libcurl/src/strdup.c')
-rw-r--r--libs/libcurl/src/strdup.c28
1 files changed, 27 insertions, 1 deletions
diff --git a/libs/libcurl/src/strdup.c b/libs/libcurl/src/strdup.c
index 9af47ea473..85cf33b3ed 100644
--- a/libs/libcurl/src/strdup.c
+++ b/libs/libcurl/src/strdup.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -24,6 +24,10 @@
#include <curl/curl.h>
+#ifdef WIN32
+#include <wchar.h>
+#endif
+
#include "strdup.h"
#include "curl_memory.h"
@@ -50,6 +54,28 @@ char *curlx_strdup(const char *str)
}
#endif
+#ifdef WIN32
+/***************************************************************************
+ *
+ * Curl_wcsdup(source)
+ *
+ * Copies the 'source' wchar string to a newly allocated buffer (that is
+ * returned).
+ *
+ * Returns the new pointer or NULL on failure.
+ *
+ ***************************************************************************/
+wchar_t *Curl_wcsdup(const wchar_t *src)
+{
+ size_t length = wcslen(src);
+
+ if(length > (SIZE_T_MAX / sizeof(wchar_t)) - 1)
+ return (wchar_t *)NULL; /* integer overflow */
+
+ return (wchar_t *)Curl_memdup(src, (length + 1) * sizeof(wchar_t));
+}
+#endif
+
/***************************************************************************
*
* Curl_memdup(source, length)