Don't write input if ICANON is enabled. Also, write one byte at a time.

diff --git a/regress/bin/ksh/edit/edit.c b/regress/bin/ksh/edit/edit.c
index 0e707af..247e0b0 100644 (file)
--- a/regress/bin/ksh/edit/edit.c
+++ b/regress/bin/ksh/edit/edit.c
@@ -34,6 +34,7 @@ int
 main(int argc, char *argv[])
 {
        char            in[BUFSIZ], out[BUFSIZ];
+       struct termios  tio;
        struct pollfd   pfd;
        struct winsize  ws;
        pid_t           pid;
@@ -100,7 +101,12 @@ main(int argc, char *argv[])
                        if (nread == 0)
                                continue;
 
-                       n = write(ptyfd, &in[nwrite], nin - nwrite);
+                       if (tcgetattr(ptyfd, &tio) == -1)
+                               err(1, "tcgetattr");
+                       if ((tio.c_lflag & ICANON) == ICANON)
+                               continue;
+
+                       n = write(ptyfd, &in[nwrite], 1);
                        if (n == -1)
                                err(1, "write");
                        nwrite += n;