llvm/lib/Support/Errno.cpp: [Win32] Fix usage of strerror_s().

FYI, two arguments of strerror_s() is provided in C++ on msvc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159103 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/Errno.cpp b/lib/Support/Errno.cpp
index 18c658173a7ab0fd4561e773ea588e80108a05ce..dd218f60990e5ef40f9767062acdc6a78e99e64c 100644 (file)
--- a/lib/Support/Errno.cpp
+++ b/lib/Support/Errno.cpp
@@ -52,7 +52,7 @@ std::string StrError(int errnum) {
 # endif
 #elif HAVE_DECL_STRERROR_S // "Windows Secure API"
     if (errnum)
-      strerror_s(buffer, errnum);
+      strerror_s(buffer, MaxErrStrLen - 1, errnum);
 #elif defined(HAVE_STRERROR)
   // Copy the thread un-safe result of strerror into
   // the buffer as fast as possible to minimize impact