# st

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    commit 375b28720f7c78e6fac1c274f9dee7c40a78aacb
    parent d836561b96097b04760104e7e0f8d014f5889a18
    Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
    Date:   Sat, 21 Nov 2015 18:21:03 +0100

    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.

    Diffstat:
    Mst.c | 4++--

    1 file changed, 2 insertions(+), 2 deletions(-)
    diff --git 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;