[PATCH] nc: fix client hang

[Tomoya Adachi]

When nc is running as a persistent server, the client's socket is not
closed in the parent process. This causes the client process to hang.
Here is a simple example:

$ ./busybox nc -l -l -p 8000 -e /bin/echo Hello &
[1] 5994

$ nc localhost 8000
Hello
       <---- it doesn't return to the shell prompt

Signed-off-by: Tomoya Adachi <adachi at il.is.s.u-tokyo.ac.jp>
---
 networking/nc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/networking/nc.c b/networking/nc.c
index e4db238..b344978 100644
--- a/networking/nc.c
+++ b/networking/nc.c
@@ -146,6 +146,7 @@ int nc_main(int argc, char **argv)
                        close(0);
                        close(1);
                        close(2);
+                       close(cfd);
                        goto accept_again;
                }
                /* child (or main thread if no multiple -l) */
--
1.6.3.3