2 /* Toybox infrastructure.
4 * Copyright 2006 Rob Landley <rob@landley.net>
6 * Licensed under GPL version 2, see file LICENSE in this tarball for details.
11 // The monster fun applet list.
13 struct toy_list toy_list[] = {
14 // This one is out of order on purpose.
15 {"toybox", toybox_main, 0},
16 // The rest of these are alphabetical, for binary search.
17 {"cd", cd_main, TOYFLAG_NOFORK},
18 {"df", df_main, TOYFLAG_USR|TOYFLAG_SBIN},
19 {"exit", exit_main, TOYFLAG_NOFORK},
20 {"hello", hello_main, TOYFLAG_NOFORK|TOYFLAG_USR},
21 {"sh", toysh_main, TOYFLAG_BIN},
22 {"toysh", toysh_main, TOYFLAG_BIN}
25 #define TOY_LIST_LEN (sizeof(toy_list)/sizeof(struct toy_list))
27 // global context for this applet.
29 struct toy_context toys;
31 struct toy_list *toy_find(char *name)
33 int top, bottom, middle;
35 // If the name starts with "toybox", accept that as a match. Otherwise
36 // skip the first entry, which is out of order.
38 if (!strncmp(name,"toybox",6)) return toy_list;
41 // Binary search to find this applet.
47 middle = (top+bottom)/2;
48 if (middle<bottom || middle>top) return NULL;
49 result = strcmp(name,toy_list[middle].name);
50 if (!result) return toy_list+middle;
51 if (result<0) top=--middle;
52 else bottom = ++middle;
56 void toy_init(struct toy_list *which, char *argv[])
58 // Free old toys contents here?
66 void toy_exec(char *argv[])
68 struct toy_list *which;
70 which = toy_find(argv[0]);
73 toy_init(which, argv);
75 exit(toys.which->toy_main());
80 static char *toy_paths[]={"usr/","bin/","sbin/",0};
84 if (toys.argv[1][0]!='-') {
85 toy_exec(toys.argv+1);
86 error_exit("No behavior for %s\n",toys.argv[1]);
90 // Output list of applets.
91 for (i=1; i<TOY_LIST_LEN; i++) {
92 int fl = toy_list[i].flags;
93 if (fl & TOYMASK_LOCATION) {
96 for (j=0; toy_paths[j]; j++)
97 if (fl & (1<<j)) len += printf("%s", toy_paths[j]);
99 len += printf("%s ",toy_list[i].name);
110 int main(int argc, char *argv[])
114 // Figure out which applet to call.
115 name = rindex(argv[0], '/');
116 if (!name) name=argv[0];
121 return toybox_main();