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-rw-r--r--third_party/rust/glslopt/glsl-optimizer/src/util/strndup.h60
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diff --git a/third_party/rust/glslopt/glsl-optimizer/src/util/strndup.h b/third_party/rust/glslopt/glsl-optimizer/src/util/strndup.h
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index 0000000000..dcaa429dbe
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+++ b/third_party/rust/glslopt/glsl-optimizer/src/util/strndup.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef STRNDUP_H
+#define STRNDUP_H
+
+#if defined(_WIN32)
+
+#include <stdlib.h> // size_t
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static inline char *
+strndup(const char *str, size_t max)
+{
+ size_t n;
+ char *ptr;
+
+ if (!str)
+ return NULL;
+
+ n = strnlen(str, max);
+ ptr = (char *) calloc(n + 1, sizeof(char));
+ if (!ptr)
+ return NULL;
+
+ memcpy(ptr, str, n);
+ return ptr;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _WIN32 */
+
+#endif /* STRNDUP_H */