1
2
3
4
5
6#include "toys.h"
7
8#ifndef TOYBOX_VERSION
9#ifndef TOYBOX_VENDOR
10#define TOYBOX_VENDOR ""
11#endif
12#define TOYBOX_VERSION "0.7.7"TOYBOX_VENDOR
13#endif
14
15
16
17#undef NEWTOY
18#undef OLDTOY
19#define NEWTOY(name, opts, flags) {#name, name##_main, OPTSTR_##name, flags},
20#define OLDTOY(name, oldname, flags) \
21 {#name, oldname##_main, OPTSTR_##oldname, flags},
22
23struct toy_list toy_list[] = {
24#include "generated/newtoys.h"
25};
26
27
28
29struct toy_context toys;
30union global_union this;
31char toybuf[4096], libbuf[4096];
32
33struct toy_list *toy_find(char *name)
34{
35 int top, bottom, middle;
36
37 if (!CFG_TOYBOX) return 0;
38
39
40
41
42 if (!strncmp(name,"toybox",6)) return toy_list;
43 bottom = 1;
44
45
46
47 top = ARRAY_LEN(toy_list)-1;
48 for (;;) {
49 int result;
50
51 middle = (top+bottom)/2;
52 if (middle<bottom || middle>top) return NULL;
53 result = strcmp(name,toy_list[middle].name);
54 if (!result) return toy_list+middle;
55 if (result<0) top = --middle;
56 else bottom = ++middle;
57 }
58}
59
60
61
62
63
64
65#undef NEWTOY
66#undef OLDTOY
67#define NEWTOY(name, opts, flags) opts ||
68#define OLDTOY(name, oldname, flags) OPTSTR_##oldname ||
69static const int NEED_OPTIONS =
70#include "generated/newtoys.h"
710;
72
73static void unknown(char *name)
74{
75 toys.exitval = 127;
76 toys.which = toy_list;
77 error_exit("Unknown command %s", name);
78}
79
80
81static void toy_singleinit(struct toy_list *which, char *argv[])
82{
83 toys.which = which;
84 toys.argv = argv;
85
86 if (CFG_TOYBOX_I18N) setlocale(LC_CTYPE, "C.UTF-8");
87
88
89 if (CFG_TOYBOX_HELP_DASHDASH && !(which->flags & TOYFLAG_NOHELP) && argv[1]) {
90 if (!strcmp(argv[1], "--help")) {
91 if (CFG_TOYBOX && toys.which == toy_list && toys.argv[2])
92 if (!(toys.which = toy_find(toys.argv[2]))) unknown(toys.argv[2]);
93 show_help(stdout);
94 xexit();
95 }
96
97 if (!strcmp(argv[1], "--version")) {
98 xputs("toybox "TOYBOX_VERSION);
99 xexit();
100 }
101 }
102
103 if (NEED_OPTIONS && which->options) get_optflags();
104 else {
105 toys.optargs = argv+1;
106 for (toys.optc = 0; toys.optargs[toys.optc]; toys.optc++);
107 }
108 toys.old_umask = umask(0);
109 if (!(which->flags & TOYFLAG_UMASK)) umask(toys.old_umask);
110 toys.signalfd--;
111 toys.toycount = ARRAY_LEN(toy_list);
112}
113
114
115void toy_init(struct toy_list *which, char *argv[])
116{
117 void *oldwhich = toys.which;
118
119
120
121 if (CFG_TOYBOX_SUID) {
122 if (!toys.which) toys.which = toy_list;
123
124 uid_t uid = getuid(), euid = geteuid();
125
126 if (!(which->flags & TOYFLAG_STAYROOT)) {
127 if (uid != euid) {
128 if (setuid(uid)) perror_exit("setuid %d->%d", euid, uid);
129 euid = uid;
130 toys.wasroot++;
131 }
132 } else if (CFG_TOYBOX_DEBUG && uid && which != toy_list)
133 error_msg("Not installed suid root");
134
135 if ((which->flags & TOYFLAG_NEEDROOT) && euid) help_exit("Not root");
136 }
137
138
139
140 if (argv<toys.optargs || argv>toys.optargs+toys.optc) free(toys.optargs);
141 memset(&toys, 0, offsetof(struct toy_context, rebound));
142 if (oldwhich) memset(&this, 0, sizeof(this));
143
144
145 toy_singleinit(which, argv);
146}
147
148
149
150void toy_exec(char *argv[])
151{
152 struct toy_list *which;
153
154
155 if (!(which = toy_find(*argv))) return;
156
157
158
159
160
161 if (!CFG_TOYBOX_NORECURSE)
162 if (toys.stacktop && labs((long)toys.stacktop-(long)&which)>6000) return;
163
164
165 if (toys.which && (which->flags&TOYFLAG_ROOTONLY) && toys.wasroot) return;
166
167
168 toy_init(which, argv);
169 if (toys.which) toys.which->toy_main();
170 xexit();
171}
172
173
174
175void toybox_main(void)
176{
177 static char *toy_paths[]={"usr/","bin/","sbin/",0};
178 int i, len = 0;
179
180
181
182 if (toys.argv[1]) toy_exec(toys.argv+1);
183
184
185 toys.which = toy_list;
186
187 if (toys.argv[1] && toys.argv[1][0] != '-') unknown(toys.argv[1]);
188
189
190 for (i=1; i<ARRAY_LEN(toy_list); i++) {
191 int fl = toy_list[i].flags;
192 if (fl & TOYMASK_LOCATION) {
193 if (toys.argv[1]) {
194 int j;
195 for (j=0; toy_paths[j]; j++)
196 if (fl & (1<<j)) len += printf("%s", toy_paths[j]);
197 }
198 len += printf("%s",toy_list[i].name);
199 if (++len > 65) len = 0;
200 xputc(len ? ' ' : '\n');
201 }
202 }
203 xputc('\n');
204}
205
206int main(int argc, char *argv[])
207{
208 if (!*argv) return 127;
209
210
211
212 else {
213 int stack;
214
215 toys.stacktop = &stack;
216 }
217 *argv = getbasename(*argv);
218
219
220
221
222
223
224
225 if (CFG_TOYBOX_ON_ANDROID) signal(SIGPIPE, SIG_DFL);
226
227
228
229 if (!CFG_TOYBOX_FORK) {
230 if (0x80 & **argv) {
231 **argv &= 0x7f;
232 toys.stacktop = 0;
233 }
234 }
235
236 if (CFG_TOYBOX) {
237
238
239 toys.argv = argv-1;
240 toybox_main();
241 } else {
242
243 toy_singleinit(toy_list, argv);
244 toy_list->toy_main();
245 }
246
247 xexit();
248}
249