wall: access FILE under real user's credentials

While at it, move applet/config/kbuild bits into wall.c.
(This way, it's more visible that applet is suid'ed).

function                                             old     new   delta
wall_main                                             87     138     +51

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

1 files changed, 0 insertions, 7 deletions

diff --git a/miscutils/Config.src b/miscutils/Config.src
index b9fc196d8..117ec7739 100644
--- a/miscutils/Config.src
+++ b/miscutils/Config.src
@@ -591,13 +591,6 @@ config VOLNAME
         help
           Prints a CD-ROM volume name.
 
-config WALL
-        bool "wall"
-        default y
-        depends on FEATURE_UTMP
-        help
-          Write a message to all users that are logged in.
-
 config WATCHDOG
         bool "watchdog"
         default y