move remaining help text from include/usage.src.h

[oweals/busybox.git] / selinux / runcon.c

diff --git a/selinux/runcon.c b/selinux/runcon.c
index 015a233225c40b0f92b9871be6f615af47615d36..f0b21269f7e3ea5cdb891f51729c4e86bb136448 100644 (file)
--- a/selinux/runcon.c
+++ b/selinux/runcon.c
@@ -25,7 +25,31 @@
  *
  * Port to busybox: KaiGai Kohei <kaigai@kaigai.gr.jp>
  *                  - based on coreutils-5.97 (in Fedora Core 6)
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
  */
+
+//usage:#define runcon_trivial_usage
+//usage:       "[-c] [-u USER] [-r ROLE] [-t TYPE] [-l RANGE] PROG ARGS\n"
+//usage:       "runcon CONTEXT PROG ARGS"
+//usage:#define runcon_full_usage "\n\n"
+//usage:       "Run PROG in a different security context\n"
+//usage:     "\n       CONTEXT         Complete security context\n"
+//usage:       IF_FEATURE_RUNCON_LONG_OPTIONS(
+//usage:     "\n       -c,--compute    Compute process transition context before modifying"
+//usage:     "\n       -t,--type=TYPE  Type (for same role as parent)"
+//usage:     "\n       -u,--user=USER  User identity"
+//usage:     "\n       -r,--role=ROLE  Role"
+//usage:     "\n       -l,--range=RNG  Levelrange"
+//usage:       )
+//usage:       IF_NOT_FEATURE_RUNCON_LONG_OPTIONS(
+//usage:     "\n       -c      Compute process transition context before modifying"
+//usage:     "\n       -t TYPE Type (for same role as parent)"
+//usage:     "\n       -u USER User identity"
+//usage:     "\n       -r ROLE Role"
+//usage:     "\n       -l RNG  Levelrange"
+//usage:       )
+
 #include <getopt.h>
 #include <selinux/context.h>
 #include <selinux/flask.h>
@@ -39,13 +63,13 @@ static context_t runcon_compute_new_context(char *user, char *role, char *type,
        security_context_t cur_context;
 
        if (getcon(&cur_context))
-               bb_error_msg_and_die("cannot get current context");
+               bb_error_msg_and_die("can't get current context");
 
        if (compute_trans) {
                security_context_t file_context, new_context;
 
                if (getfilecon(command, &file_context) < 0)
-                       bb_error_msg_and_die("cannot retrieve attributes of '%s'",
+                       bb_error_msg_and_die("can't retrieve attributes of '%s'",
                                             command);
                if (security_compute_create(cur_context, file_context,
                                            SECCLASS_PROCESS, &new_context))
@@ -57,13 +81,13 @@ static context_t runcon_compute_new_context(char *user, char *role, char *type,
        if (!con)
                bb_error_msg_and_die("'%s' is not a valid context", cur_context);
        if (user && context_user_set(con, user))
-               bb_error_msg_and_die("failed to set new user '%s'", user);
+               bb_error_msg_and_die("can't set new user '%s'", user);
        if (type && context_type_set(con, type))
-               bb_error_msg_and_die("failed to set new type '%s'", type);
+               bb_error_msg_and_die("can't set new type '%s'", type);
        if (range && context_range_set(con, range))
-               bb_error_msg_and_die("failed to set new range '%s'", range);
+               bb_error_msg_and_die("can't set new range '%s'", range);
        if (role && context_role_set(con, role))
-               bb_error_msg_and_die("failed to set new role '%s'", role);
+               bb_error_msg_and_die("can't set new role '%s'", role);
 
        return con;
 }
@@ -87,8 +111,8 @@ static const char runcon_longopts[] ALIGN1 =
 #define OPTS_HELP      (1<<5)  /* h */
 #define OPTS_CONTEXT_COMPONENT         (OPTS_ROLE | OPTS_TYPE | OPTS_USER | OPTS_RANGE)
 
-int runcon_main(int argc, char **argv);
-int runcon_main(int argc, char **argv)
+int runcon_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int runcon_main(int argc UNUSED_PARAM, char **argv)
 {
        char *role = NULL;
        char *range = NULL;
@@ -104,7 +128,7 @@ int runcon_main(int argc, char **argv)
        applet_long_options = runcon_longopts;
 #endif
        opt_complementary = "-1";
-       opts = getopt32(argc, argv, "r:t:u:l:ch", &role, &type, &user, &range);
+       opts = getopt32(argv, "r:t:u:l:ch", &role, &type, &user, &range);
        argv += optind;
 
        if (!(opts & OPTS_CONTEXT_COMPONENT)) {
@@ -127,10 +151,8 @@ int runcon_main(int argc, char **argv)
                                     context_str(con));
 
        if (setexeccon(context_str(con)))
-               bb_error_msg_and_die("cannot set up security context '%s'",
+               bb_error_msg_and_die("can't set up security context '%s'",
                                     context_str(con));
 
-       execvp(argv[0], argv);
-
-       bb_perror_msg_and_die("cannot execute '%s'", argv[0]);
+       BB_EXECVP_or_die(argv);
 }