tTry to be more clever about re-enabling terminal echo. From Axel Belinfante. - plan9port - [fork] Plan 9 from user space

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commit 8773b4b2383644cdbfed598bd9596921233b9e62

parent a87638642c99d88a3543e0cd5864c9e54133fbee

Author: wkj 

Date:   Mon,  2 Aug 2004 15:21:38 +0000

Try to be more clever about re-enabling terminal echo.
From Axel Belinfante.

Diffstat:
  M src/cmd/9term/9term.c               |       3 ++-

1 file changed, 2 insertions(+), 1 deletion(-)
---

diff --git a/src/cmd/9term/9term.c b/src/cmd/9term/9term.c

t@@ -1021,7 +1021,8 @@ consread(void)
                 s = setecho(sfd, 0);
                 if(write(rcfd, buf, n) < 0)
                         exits(0);
-                setecho(sfd, s);
+                if(s)
+                        setecho(sfd, s);
         }
 }