Avoid recursive call to ttywrite from ttyread

Ttyread() calls to ttywrite, so if we check for reading before
that for writing in ttywrite we can get a circular call sequence.

1 files changed, 2 insertions, 2 deletions

diff --git a/st.c b/st.c
index a47f094..c5d62c1 100644
--- a/st.c
+++ b/st.c
@@ -1518,8 +1518,6 @@ ttywrite(const char *s, size_t n)
                                 continue;
                         die("select failed: %s\n", strerror(errno));
                 }
-                if (FD_ISSET(cmdfd, &rfd))
-                        lim = ttyread();
                 if (FD_ISSET(cmdfd, &wfd)) {
                         /*
                          * Only write the bytes written by ttywrite() or the
@@ -1543,6 +1541,8 @@ ttywrite(const char *s, size_t n)
                                 break;
                         }
                 }
+                if (FD_ISSET(cmdfd, &rfd))
+                        lim = ttyread();
         }
         return;