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path: root/include/busybox.h (plain)
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1/* vi: set sw=4 ts=4: */
2/*
3 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
4 */
5#ifndef BUSYBOX_H
6#define BUSYBOX_H 1
7
8#include "libbb.h"
9/* BB_DIR_foo and BB_SUID_bar constants: */
10#include "applet_metadata.h"
11
12PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
13
14/* Defined in appletlib.c (by including generated applet_tables.h) */
15/* Keep in sync with applets/applet_tables.c! */
16extern const char applet_names[] ALIGN1;
17extern int (*const applet_main[])(int argc, char **argv);
18extern const uint8_t applet_flags[] ALIGN1;
19extern const uint8_t applet_suid[] ALIGN1;
20extern const uint8_t applet_install_loc[] ALIGN1;
21
22#if ENABLE_FEATURE_PREFER_APPLETS \
23 || ENABLE_FEATURE_SH_STANDALONE \
24 || ENABLE_FEATURE_SH_NOFORK
25# define APPLET_IS_NOFORK(i) (applet_flags[(i)/4] & (1 << (2 * ((i)%4))))
26# define APPLET_IS_NOEXEC(i) (applet_flags[(i)/4] & (1 << ((2 * ((i)%4))+1)))
27#else
28# define APPLET_IS_NOFORK(i) 0
29# define APPLET_IS_NOEXEC(i) 0
30#endif
31
32#if ENABLE_FEATURE_SUID
33# define APPLET_SUID(i) ((applet_suid[(i)/4] >> (2 * ((i)%4)) & 3))
34#endif
35
36#if ENABLE_FEATURE_INSTALLER
37#define APPLET_INSTALL_LOC(i) ({ \
38 unsigned v = (i); \
39 if (v & 1) v = applet_install_loc[v/2] >> 4; \
40 else v = applet_install_loc[v/2] & 0xf; \
41 v; })
42#endif
43
44
45/* Length of these names has effect on size of libbusybox
46 * and "individual" binaries. Keep them short.
47 */
48#if ENABLE_BUILD_LIBBUSYBOX
49#if ENABLE_FEATURE_SHARED_BUSYBOX
50int lbb_main(char **argv) EXTERNALLY_VISIBLE;
51#else
52int lbb_main(char **argv);
53#endif
54#endif
55
56POP_SAVED_FUNCTION_VISIBILITY
57
58#endif
59