From 5fa0354cd81ae1c0c92821e0f527ef90bbbdb87a Mon Sep 17 00:00:00 2001
From: Gaurav <g.gupta@samsung.com>
Date: Tue, 20 Oct 2015 14:54:48 +0530
Subject: [PATCH] Check return value of sprintf again.

At other places return value of sprintf is checked, but missed here.
---
 src/posix_api.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/posix_api.cpp b/src/posix_api.cpp
index 8a803b3c..4640ea13 100644
--- a/src/posix_api.cpp
+++ b/src/posix_api.cpp
@@ -185,10 +185,12 @@ BOOST_REGEX_DECL regsize_t BOOST_REGEX_CCALL regerrorA(int code, const regex_tA*
          }
       }
 #if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(_WIN32_WCE) && !defined(UNDER_CE)
-      (::sprintf_s)(localbuf, 5, "%d", 0);
+      int r = (::sprintf_s)(localbuf, 5, "%d", 0);
 #else
-      (std::sprintf)(localbuf, "%d", 0);
+      int r = (std::sprintf)(localbuf, "%d", 0);
 #endif
+      if(r < 0)
+         return 0; // sprintf failed
       if(std::strlen(localbuf) < buf_size)
          re_detail::strcpy_s(buf, buf_size, localbuf);
       return std::strlen(localbuf) + 1;