(main): Check for negative value from `read'.

1 files changed, 2 insertions, 0 deletions

diff --git a/lib-src/movemail.c b/lib-src/movemail.c
index d3ec1fcd178..1f73ee88ba8 100644
--- a/lib-src/movemail.c
+++ b/lib-src/movemail.c
@@ -466,6 +466,8 @@ main (argc, argv)
         while (1)
           {
             nread = read (indesc, buf, sizeof buf);
+            if (nread < 0)
+              pfatal_with_name (inname);
             if (nread != write (outdesc, buf, nread))
               {
                 int saved_errno = errno;