1 files changed, 64 insertions, 0 deletions
diff --git a/openmp/runtime/src/kmp_safe_c_api.h b/openmp/runtime/src/kmp_safe_c_api.h
new file mode 100644
index 00000000000..fbdca7bac4f
--- /dev/null
+++ b/openmp/runtime/src/kmp_safe_c_api.h
@@ -0,0 +1,64 @@
+
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.txt for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+#ifndef KMP_SAFE_C_API_H
+#define KMP_SAFE_C_API_H
+
+//
+// Replacement for banned C API
+//
+
+// Not every unsafe call listed here is handled now, but keeping everything
+// in one place should be handy for future maintenance.
+#if KMP_OS_WINDOWS
+
+# define RSIZE_MAX_STR ( 4UL << 10 ) // 4KB
+
+// _malloca was suggested, but it is not a drop-in replacement for _alloca
+// TODO: test performance and replace with _alloca (as below)
+# define KMP_ALLOCA                  alloca
+//# define KMP_ALLOCA                  _alloca
+
+# define KMP_MEMCPY_S                memcpy_s
+# define KMP_SNPRINTF                sprintf_s
+# define KMP_SSCANF                  sscanf_s
+# define KMP_STRCPY_S                strcpy_s
+# define KMP_STRNCPY_S               strncpy_s
+
+// Use this only when buffer size is unknown
+# define KMP_MEMCPY(dst, src, cnt)   memcpy_s(dst, cnt, src, cnt)
+
+# define KMP_STRLEN(str)             strnlen_s(str, RSIZE_MAX_STR)
+
+// Use this only when buffer size is unknown
+# define KMP_STRNCPY(dst, src, cnt)  strncpy_s(dst, cnt, src, cnt)
+
+// _TRUNCATE insures buffer size > max string to print.
+# define KMP_VSNPRINTF(dst, cnt, fmt, arg)  vsnprintf_s(dst, cnt, _TRUNCATE, fmt, arg)
+
+#else // KMP_OS_WINDOWS
+
+// For now, these macros use the existing API.
+
+# define KMP_ALLOCA                         alloca
+# define KMP_MEMCPY_S(dst, bsz, src, cnt)   memcpy(dst, src, cnt)
+# define KMP_SNPRINTF                       snprintf
+# define KMP_SSCANF                         sscanf
+# define KMP_STRCPY_S(dst, bsz, src)        strcpy(dst, src) 
+# define KMP_STRNCPY_S(dst, bsz, src, cnt)  strncpy(dst, src, cnt)
+# define KMP_VSNPRINTF                      vsnprintf
+# define KMP_STRNCPY                        strncpy
+# define KMP_STRLEN                         strlen
+# define KMP_MEMCPY                         memcpy
+
+#endif // KMP_OS_WINDOWS
+
+#endif // KMP_SAFE_C_API_H