libbb: spawn_and_wait() fflushes before forking NOEXEC; child reinits logmode

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/docs/nofork_noexec.txt b/docs/nofork_noexec.txt
index 2fb184a03..a24dd9c27 100644
--- a/docs/nofork_noexec.txt
+++ b/docs/nofork_noexec.txt
@@ -99,6 +99,13 @@ applet_name. Thus, for example, caller does not need to worry about
 option_mask32 getting trashed.
 
 
+        Calling NOEXEC applets
+
+It's the same trusty spawn_and_wait(argv). If FEATURE_PREFER_APPLETS=y,
+it does NOEXEC trick. It resets xfunc_error_retval = 1 and
+logmode = LOGMODE_STDIO in the child.
+
+
         Relevant CONFIG options
 
 FEATURE_PREFER_APPLETS