1 /* vi: set sw=4 ts=4: */
8 #ifdef BB_LOCALE_SUPPORT
12 int been_there_done_that = 0; /* Also used in applets.c */
13 const char *applet_name;
15 #ifdef BB_FEATURE_INSTALLER
18 * this should be consistent w/ the enum, busybox.h::Location,
21 static char* install_dir[] = {
30 typedef int (*__link_f)(const char *, const char *);
33 * Where in the filesystem is this busybox?
35 * malloc'd string w/ full pathname of busybox's location
38 static char *busybox_fullpath()
40 return xreadlink("/proc/self/exe");
43 /* create (sym)links for each applet */
44 static void install_links(const char *busybox, int use_symbolic_links)
52 if (use_symbolic_links)
55 for (i = 0; applets[i].name != NULL; i++) {
56 fpc = concat_path_file(
57 install_dir[applets[i].location], applets[i].name);
58 rc = Link(busybox, fpc);
59 if (rc!=0 && errno!=EEXIST) {
60 perror_msg("%s", fpc);
66 #endif /* BB_FEATURE_INSTALLER */
68 int main(int argc, char **argv)
72 for (s = applet_name = argv[0]; *s != '\0';) {
78 /* Add in a special case hack -- whenever **argv == '-'
79 * (i.e. '-su' or '-sh') always invoke the shell */
80 if (**argv == '-' && *(*argv+1)!= '-') {
85 #ifdef BB_LOCALE_SUPPORT
86 if(getpid()!=1) /* Do not set locale for `init' */
87 setlocale(LC_ALL, "");
90 run_applet_by_name(applet_name, argc, argv);
91 error_msg_and_die("applet not found");
95 int busybox_main(int argc, char **argv)
99 #ifdef BB_FEATURE_INSTALLER
101 * This style of argument parsing doesn't scale well
102 * in the event that busybox starts wanting more --options.
103 * If someone has a cleaner approach, by all means implement it.
105 if (argc > 1 && (strcmp(argv[1], "--install") == 0)) {
106 int use_symbolic_links = 0;
110 /* to use symlinks, or not to use symlinks... */
112 if ((strcmp(argv[2], "-s") == 0)) {
113 use_symbolic_links = 1;
118 busybox = busybox_fullpath();
120 install_links(busybox, use_symbolic_links);
127 #endif /* BB_FEATURE_INSTALLER */
131 /* If we've already been here once, exit now */
132 if (been_there_done_that == 1 || argc < 1) {
133 const struct BB_applet *a = applets;
135 fprintf(stderr, "%s\n\n"
136 "Usage: busybox [function] [arguments]...\n"
137 " or: [function] [arguments]...\n\n"
138 "\tBusyBox is a multi-call binary that combines many common Unix\n"
139 "\tutilities into a single executable. Most people will create a\n"
140 "\tlink to busybox for each function they wish to use, and BusyBox\n"
141 "\twill act like whatever it was invoked as.\n"
142 "\nCurrently defined functions:\n", full_version);
144 while (a->name != 0) {
146 fprintf(stderr, "%s%s", ((col == 0) ? "\t" : ", "),
148 if (col > 60 && a->name != 0) {
149 fprintf(stderr, ",\n");
153 fprintf(stderr, "\n\n");
157 /* Flag that we've been here already */
158 been_there_done_that = 1;
160 /* Move the command line down a notch */
161 len = argv[argc] + strlen(argv[argc]) - argv[1];
162 memmove(argv[0], argv[1], len);
163 memset(argv[0] + len, 0, argv[1] - argv[0]);
165 /* Fix up the argv pointers */
166 len = argv[1] - argv[0];
167 memmove(argv, argv + 1, sizeof(char *) * (argc + 1));
168 for (i = 0; i < argc; i++)
171 return (main(argc, argv));
176 c-file-style: "linux"