X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fwcswidth-impl.h;h=865390c5e9ee2b760c64d2da7351b54854bc8ad3;hb=b65bfcd7ba0be84de3d96f22103103f21679a721;hp=dc1a60c53213e8b09834655b9991007ce1319694;hpb=cbe8a0a3fe09047b99e5c0cfb67f45634d036487;p=gnulib.git

diff --git a/lib/wcswidth-impl.h b/lib/wcswidth-impl.h
index dc1a60c53..865390c5e 100644
--- a/lib/wcswidth-impl.h
+++ b/lib/wcswidth-impl.h
@@ -28,6 +28,8 @@ wcswidth (const wchar_t *s, size_t n)
         int width = wcwidth (c);
         if (width < 0)
           goto found_nonprinting;
+        if (width > INT_MAX - count)
+          goto overflow;
         count += width;
       }
     }
@@ -35,4 +37,7 @@ wcswidth (const wchar_t *s, size_t n)
 
  found_nonprinting:
   return -1;
+
+ overflow:
+  return INT_MAX;
 }