cli: Disable XON/XOFF in the tty

[vpp.git] / src / vlib / unix / cli.c

diff --git a/src/vlib/unix/cli.c b/src/vlib/unix/cli.c
index 6c49d80..727b954 100644 (file)
--- a/src/vlib/unix/cli.c
+++ b/src/vlib/unix/cli.c
@@ -2927,8 +2927,12 @@ unix_cli_config (vlib_main_t * vm, unformat_input_t * input)
          tio = um->tio_stdin;
          /* echo off, canonical mode off, ext'd input processing off */
          tio.c_lflag &= ~(ECHO | ICANON | IEXTEN);
+         /* disable XON/XOFF, so ^S invokes the history search */
+         tio.c_iflag &= ~(IXON | IXOFF);
          tio.c_cc[VMIN] = 1;   /* 1 byte at a time */
          tio.c_cc[VTIME] = 0;  /* no timer */
+         tio.c_cc[VSTOP] = _POSIX_VDISABLE;    /* not ^S */
+         tio.c_cc[VSTART] = _POSIX_VDISABLE;   /* not ^Q */
          tcsetattr (STDIN_FILENO, TCSAFLUSH, &tio);
 
          /* See if we can do ANSI/VT100 output */