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make 17 state-changing execing applets (ex: "nice PROG ARGS") noexec

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The applets with "<applet> [opts] PROG ARGS" API very quickly exec
another program, noexec is okay for them:

 chpst/envdir/envuidgid/softlimit/setuidgid
 chroot
 chrt
 ionice
 nice
 nohup
 setarch/linux32/linux64
 taskset
 cttyhack

"reset" and "sulogin" applets don't have this form, but also exec
another program at once, thus made noexec too.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2017-08-04 19:55:01 +02:00
parent 6514785f95
commit 5c527dc57e
12 changed files with 44 additions and 43 deletions
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3
coreutils/chroot.c
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@ -13,7 +13,7 @@
//config: chroot is used to change the root directory and run a command.
//config: The default command is '/bin/sh'.
//applet:IF_CHROOT(APPLET(chroot, BB_DIR_USR_SBIN, BB_SUID_DROP))
//applet:IF_CHROOT(APPLET_NOEXEC(chroot, chroot, BB_DIR_USR_SBIN, BB_SUID_DROP, chroot))
//kbuild:lib-$(CONFIG_CHROOT) += chroot.o
@ -40,6 +40,7 @@ int chroot_main(int argc UNUSED_PARAM, char **argv)
++argv;
if (!*argv)
bb_show_usage();
xchroot(*argv);
++argv;