1 files changed, 26 insertions, 2 deletions
diff --git a/libs/libcurl/src/strdup.c b/libs/libcurl/src/strdup.c
index 1008d94fe5..ee341ef27e 100644
--- a/libs/libcurl/src/strdup.c
+++ b/libs/libcurl/src/strdup.c
@@ -26,7 +26,7 @@
 
 #include <curl/curl.h>
 
-#ifdef WIN32
+#ifdef _WIN32
 #include <wchar.h>
 #endif
 
@@ -56,7 +56,7 @@ char *Curl_strdup(const char *str)
 }
 #endif
 
-#ifdef WIN32
+#ifdef _WIN32
 /***************************************************************************
  *
  * Curl_wcsdup(source)
@@ -101,6 +101,30 @@ void *Curl_memdup(const void *src, size_t length)
 
 /***************************************************************************
  *
+ * Curl_strndup(source, length)
+ *
+ * Copies the 'source' string to a newly allocated buffer (that is returned).
+ * Copies not more than 'length' bytes (up to a null terminator) then adds a
+ * null terminator.
+ *
+ * Returns the new pointer or NULL on failure.
+ *
+ ***************************************************************************/
+void *Curl_strndup(const char *src, size_t length)
+{
+  char *buf = memchr(src, '\0', length);
+  if(buf)
+    length = buf - src;
+  buf = malloc(length + 1);
+  if(!buf)
+    return NULL;
+  memcpy(buf, src, length);
+  buf[length] = 0;
+  return buf;
+}
+
+/***************************************************************************
+ *
  * Curl_saferealloc(ptr, size)
  *
  * Does a normal realloc(), but will free the data pointer if the realloc