From 97b738d359c0398942d0dc4301415a2fe814eace Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Sun, 6 Aug 2017 18:06:46 +0200 Subject: [PATCH] setserial: make it NOEXEC Signed-off-by: Denys Vlasenko --- NOFORK_NOEXEC.lst | 2 +- miscutils/setserial.c | 7 ++++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/NOFORK_NOEXEC.lst b/NOFORK_NOEXEC.lst index 3bd82aa60..30690af61 100644 --- a/NOFORK_NOEXEC.lst +++ b/NOFORK_NOEXEC.lst @@ -310,7 +310,7 @@ setfont setkeycodes setlogcons setpriv - spawner, changes state, let's play safe and not be noexec -setserial +setserial - noexec setsid - spawner, uses fork_or_rexec() [not audited to work in noexec], let's play safe and not be noexec setuidgid - noexec. spawner sha1sum - noexec. runner diff --git a/miscutils/setserial.c b/miscutils/setserial.c index a4d59f898..2000de7b1 100644 --- a/miscutils/setserial.c +++ b/miscutils/setserial.c @@ -15,7 +15,7 @@ //config: help //config: Retrieve or set Linux serial port. -//applet:IF_SETSERIAL(APPLET(setserial, BB_DIR_BIN, BB_SUID_DROP)) +//applet:IF_SETSERIAL(APPLET_NOEXEC(setserial, setserial, BB_DIR_BIN, BB_SUID_DROP, setserial)) //kbuild:lib-$(CONFIG_SETSERIAL) += setserial.o @@ -746,14 +746,15 @@ int setserial_main(int argc UNUSED_PARAM, char **argv) opts = getopt32(argv, "bGavzgq"); argv += optind; - if (!argv[1]) /* one arg only? */ - opts |= OPT_LIST_OF_DEVS; + if (!argv[1]) /* one arg only? (nothing to change?) */ + opts |= OPT_LIST_OF_DEVS; /* force display */ if (!(opts & OPT_LIST_OF_DEVS)) { serial_set(argv, opts); argv[1] = NULL; } + /* -v effect: "after setting params, do not be silent, show them" */ if (opts & (OPT_VERBOSE | OPT_LIST_OF_DEVS)) { do { serial_get(*argv, opts & OPT_MODE_MASK);