reorganize applet table. Eliminates pointers to names.
[oweals/busybox.git] / include / busybox.h
1 /* vi: set sw=4 ts=4: */
2 /*
3  * Busybox main internal header file
4  *
5  * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
6  */
7 #ifndef _BB_INTERNAL_H_
8 #define _BB_INTERNAL_H_    1
9
10 #include "libbb.h"
11
12 /* order matters: used as index into "install_dir[]" in appletlib.c */
13 typedef enum bb_install_loc_t {
14         _BB_DIR_ROOT = 0,
15         _BB_DIR_BIN,
16         _BB_DIR_SBIN,
17         _BB_DIR_USR_BIN,
18         _BB_DIR_USR_SBIN
19 } bb_install_loc_t;
20
21 typedef enum bb_suid_t {
22         _BB_SUID_NEVER = 0,
23         _BB_SUID_MAYBE,
24         _BB_SUID_ALWAYS
25 } bb_suid_t;
26
27
28 /* Defined in appletlib.c (by including generated applet_tables.h) */
29 /* Keep in sync with applets/applet_tables.c! */
30 extern const char applet_names[];
31 extern int (*const applet_mains[])(int argc, char **argv);
32
33 #if ENABLE_FEATURE_INSTALLER || ENABLE_FEATURE_PREFER_APPLETS
34 extern const uint32_t applet_nameofs[];
35 #else
36 extern const uint16_t applet_nameofs[];
37 #endif
38
39 #if ENABLE_FEATURE_SUID
40 #define APPLET_NAME(i) (applet_names + (applet_nameofs[i] & 0x3fff))
41 #define APPLET_SUID(i) ((applet_nameofs[i] >> 14) & 0x3)
42 #else
43 #define APPLET_NAME(i) (applet_names + (applet_nameofs[i] & 0xffff))
44 #endif
45
46 #if ENABLE_FEATURE_INSTALLER
47 #define APPLET_INSTALL_LOC(i) ((applet_nameofs[i] >> 16) & 0x7)
48 #endif
49
50 #if ENABLE_FEATURE_PREFER_APPLETS
51 #define APPLET_IS_NOFORK(i) (applet_nameofs[i] & (1 << 19))
52 #define APPLET_IS_NOEXEC(i) (applet_nameofs[i] & (1 << 20))
53 #endif
54
55
56 /* Length of these names has effect on size of libbusybox
57  * and "individual" binaries. Keep them short.
58  */
59 void lbb_prepare(const char *applet, char **argv) MAIN_EXTERNALLY_VISIBLE;
60 #if ENABLE_BUILD_LIBBUSYBOX
61 #if ENABLE_FEATURE_SHARED_BUSYBOX
62 int lbb_main(int argc, char **argv) EXTERNALLY_VISIBLE;
63 #else
64 int lbb_main(int argc, char **argv);
65 #endif
66 #endif
67
68
69 #endif  /* _BB_INTERNAL_H_ */