[BusyBox] [PATCH] fix docs for CONFIG_FEATURE_SUID_CONFIG

[Patrick Huesmann]

This is really confusing for users who don't know all details of the
*nix file permission system.
Today, I changed my busybox system to use CONFIG_FEATURE_SUID_CONFIG.
After fighting with the file permissions for hours, I decided that
updating the documentation might be a good idea.

--- sysdeps/linux/Config.in.orig        2005-04-27 08:06:37.000000000 +0000
+++ sysdeps/linux/Config.in 2005-04-27 08:45:12.000000000 +0000
@@ -113,6 +113,11 @@

          cp = --- # disable applet cp for everyone

+         The file has to be owned by user root, group root and has to
be writeable only by root
+         (chown 0.0 /etc/busybox.conf; chmod 600 /etc/busybox.conf)
+         The busybox executable has to be owned by user root, group
root and has to be setuid root for this to work
+         (chown 0.0 /bin/busybox; chmod 4755 /bin/busybox)
+
          Robert 'sandman' Griebl has more information here:
          <url: http://www.softforge.de/bb/suid.html >.
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