* starttls.c (main): Clear fd sets before select().

diff --git a/starttls.c b/starttls.c
index 27ef839..f777d9b 100644 (file)
--- a/starttls.c
+++ b/starttls.c
@@ -260,6 +260,7 @@ main (argc, argv)
 
   while (1)
     {
+      FD_ZERO (&readfds);
       FD_SET (tls_fd, &readfds);
       FD_SET (in, &readfds);
       if (select (tls_fd+1, &readfds, NULL, NULL, NULL) == -1
@@ -276,6 +277,7 @@ main (argc, argv)
            goto finish;
          for (retry = buffer; nbuffer > 0; nbuffer -= wrote, retry += wrote)
            {
+             FD_ZERO (&writefds);
              FD_SET (tls_fd, &writefds);
              if (select (tls_fd+1, NULL, &writefds, NULL, NULL) == -1)
                {
@@ -299,6 +301,7 @@ main (argc, argv)
            goto finish;
          for (retry = buffer; nbuffer > 0; nbuffer -= wrote, retry += wrote)
            {
+             FD_ZERO (&writefds);
              FD_SET (out, &writefds);
              if (select (out+1, NULL, &writefds, NULL, NULL) == -1)
                {