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| author | Patrick Steinhardt | 2017-07-02 15:42:50 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2017-07-04 17:10:31 +0200 |
| commit | d253b557a338c5fe27e8f5e55540db07e7842fc4 (patch) | |
| tree | 4d7143c4284d803cf559d394ed48392408ce7335 | |
| parent | 558aae1a3384fce626d98608730f3b2d919bb78f (diff) | |
| download | busybox-d253b557a338c5fe27e8f5e55540db07e7842fc4.zip busybox-d253b557a338c5fe27e8f5e55540db07e7842fc4.tar.gz | |
setpriv: do not process remaining args
By default, the 'getopt32' call will continue parsing the command line
even after hitting a non-option string. But in setpriv, this should be
avoided, as all parameters following the initial non-option argument are
in fact arguments to the binary that is to be executed by setpriv.
Otherwise, calling e.g. 'busybox setpriv ls -l' would result in an error
due to the unknown parameter "-l".
Fix the issue by passing "+" as the first character in the options
string. This will cause 'getopt32' to stop processing after hitting the
first non-option.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | util-linux/setpriv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/util-linux/setpriv.c b/util-linux/setpriv.c index 6bd663b..686ad45 100644 --- a/util-linux/setpriv.c +++ b/util-linux/setpriv.c @@ -62,7 +62,8 @@ int setpriv_main(int argc UNUSED_PARAM, char **argv) opt_complementary = "-1"; applet_long_options = setpriv_longopts; - opts = getopt32(argv, ""); + opts = getopt32(argv, "+"); + if (opts) { if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) bb_simple_perror_msg_and_die("prctl: NO_NEW_PRIVS"); |