1 /* vi: set sw=4 ts=4: */
3 * BusyBox' main applet dispatcher.
5 * Licensed under GPLv2, see file LICENSE in this tarball for details.
9 const char *applet_name ATTRIBUTE_EXTERNALLY_VISIBLE;
11 #ifdef CONFIG_FEATURE_INSTALLER
14 * this should be consistent w/ the enum, busybox.h::Location,
17 static const char usr_bin [] ="/usr/bin";
18 static const char usr_sbin[] ="/usr/sbin";
20 static const char* const install_dir[] = {
21 &usr_bin [8], /* "", equivalent to "/" for concat_path_file() */
22 &usr_bin [4], /* "/bin" */
23 &usr_sbin[4], /* "/sbin" */
29 typedef int (*__link_f)(const char *, const char *);
31 /* create (sym)links for each applet */
32 static void install_links(const char *busybox, int use_symbolic_links)
40 if (use_symbolic_links)
43 for (i = 0; applets[i].name != NULL; i++) {
44 fpc = concat_path_file(
45 install_dir[applets[i].location], applets[i].name);
46 rc = Link(busybox, fpc);
47 if (rc!=0 && errno!=EEXIST) {
48 bb_perror_msg("%s", fpc);
55 #define install_links(x,y)
56 #endif /* CONFIG_FEATURE_INSTALLER */
58 int main(int argc, char **argv)
63 if (*applet_name == '-') applet_name++;
64 for (s = applet_name; *s ;)
65 if (*(s++) == '/') applet_name = s;
67 /* Set locale for everybody except `init' */
68 if(ENABLE_LOCALE_SUPPORT && getpid() != 1)
69 setlocale(LC_ALL, "");
71 run_applet_by_name(applet_name, argc, argv);
72 bb_error_msg_and_die("applet not found");
75 int busybox_main(int argc, char **argv)
78 * This style of argument parsing doesn't scale well
79 * in the event that busybox starts wanting more --options.
80 * If someone has a cleaner approach, by all means implement it.
82 if (ENABLE_FEATURE_INSTALLER && argc > 1 && !strcmp(argv[1], "--install")) {
83 int use_symbolic_links = 0;
87 /* to use symlinks, or not to use symlinks... */
89 if ((strcmp(argv[2], "-s") == 0)) {
90 use_symbolic_links = 1;
95 busybox = xreadlink("/proc/self/exe");
97 install_links(busybox, use_symbolic_links);
105 /* Deal with --help. (Also print help when called with no arguments) */
107 if (argc==1 || !strcmp(argv[1],"--help") ) {
109 applet_name = argv[2];
110 run_applet_by_name(applet_name, 2, argv);
112 const struct BB_applet *a;
113 int col, output_width;
115 if (ENABLE_FEATURE_AUTOWIDTH) {
116 /* Obtain the terminal width. */
117 get_terminal_width_height(0, &output_width, NULL);
118 /* leading tab and room to wrap */
119 output_width -= sizeof("start-stop-daemon, ") + 8;
120 } else output_width = 80 - sizeof("start-stop-daemon, ") - 8;
123 "Copyright (C) 1998-2006 Erik Andersen, Rob Landley, and others.\n"
124 "Licensed under GPLv2. See source distribution for full notice.\n\n"
125 "Usage: busybox [function] [arguments]...\n"
126 " or: [function] [arguments]...\n\n"
127 "\tBusyBox is a multi-call binary that combines many common Unix\n"
128 "\tutilities into a single executable. Most people will create a\n"
129 "\tlink to busybox for each function they wish to use and BusyBox\n"
130 "\twill act like whatever it was invoked as!\n"
131 "\nCurrently defined functions:\n", bb_msg_full_version);
134 for(a = applets; a->name;) {
135 col += printf("%s%s", (col ? ", " : "\t"), (a++)->name);
136 if (col > output_width && a->name) {
144 } else run_applet_by_name(argv[1], argc-1, argv+1);
146 bb_error_msg_and_die("applet not found");