[PATCH] ash: job: option to restore term io after job is stopped/killed

[Björn Bidar]

This moves the restore IOS support into a build option so it can be
disabled/enabled. Using this fixes lost terminal stdout after using ^C
on programs like /bin/su.

Signed-off-by: Björn Bidar <bjorn.bidar at jolla.com>
---
 shell/ash.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/shell/ash.c b/shell/ash.c
index ecb9b132b..97bf55994 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -77,6 +77,14 @@
 //config:	default y
 //config:	depends on SHELL_ASH
 //config:
+//config:config ASH_JOB_RESTORE_TERM_IOS
+//config:   bool "Restore termio"
+//config:   default y
+//config:   depends on ASH || SH_IS_ASH || BASH_IS_ASH
+//config:   help
+//config:   Restore IO after foreground job received SIGINT/SIGKILL/SIGSTOP.
+//config:   Avoids lost STDOUT after programs like su recieves ^C.
+//config:
 //config:config ASH_ALIAS
 //config:	bool "Alias support"
 //config:	default y
@@ -3796,7 +3804,7 @@ static unsigned njobs; //4
 /* current job */
 static struct job *curjob; //lots
 
-#if 0
+#if ENABLE_ASH_JOB_RESTORE_TERM_IOS
 /* Bash has a feature: it restores termios after a successful wait for
  * a foreground job which had at least one stopped or sigkilled member.
  * The probable rationale is that SIGSTOP and SIGKILL can preclude task from
-- 
2.29.1