- if (chroot (*argv) || (chdir ("/"))) {
- fprintf(stderr, "chroot: cannot change root directory to %s: %s\n",
- *argv, strerror(errno));
- exit( FALSE);
- }
+ if ((argc < 2) || (**(argv + 1) == '-')) {
+ show_usage();
+ }
+ argc--;
+ argv++;
+
+ if (chroot(*argv) || (chdir("/"))) {
+ perror_msg_and_die("cannot change root directory to %s", *argv);
+ }
+
+ argc--;
+ argv++;
+ if (argc >= 1) {
+ prog = *argv;
+ execvp(*argv, argv);
+ } else {
+#if defined shell_main && defined CONFIG_FEATURE_SH_STANDALONE_SHELL
+ char shell[] = "/bin/sh";
+ char *shell_argv[2] = { shell, NULL };
+ applet_name = shell;
+ shell_main(1, shell_argv);
+ return EXIT_SUCCESS;
+#else
+ prog = getenv("SHELL");
+ if (!prog)
+ prog = "/bin/sh";
+ execlp(prog, prog, NULL);
+#endif
+ }
+ perror_msg_and_die("cannot execute %s", prog);