1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Busybox main internal header file
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4 | *
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5 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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6 | */
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7 | #ifndef BUSYBOX_H
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8 | #define BUSYBOX_H 1
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9 |
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10 | #include "libbb.h"
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11 |
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12 | PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
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13 |
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14 | /* order matters: used as index into "install_dir[]" in appletlib.c */
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15 | typedef enum bb_install_loc_t {
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16 | _BB_DIR_ROOT = 0,
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17 | _BB_DIR_BIN,
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18 | _BB_DIR_SBIN,
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19 | #if ENABLE_INSTALL_NO_USR
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20 | _BB_DIR_USR_BIN = _BB_DIR_BIN,
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21 | _BB_DIR_USR_SBIN = _BB_DIR_SBIN,
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22 | #else
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23 | _BB_DIR_USR_BIN,
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24 | _BB_DIR_USR_SBIN,
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25 | #endif
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26 | } bb_install_loc_t;
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27 |
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28 | typedef enum bb_suid_t {
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29 | _BB_SUID_DROP = 0,
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30 | _BB_SUID_MAYBE,
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31 | _BB_SUID_REQUIRE
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32 | } bb_suid_t;
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33 |
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34 |
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35 | /* Defined in appletlib.c (by including generated applet_tables.h) */
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36 | /* Keep in sync with applets/applet_tables.c! */
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37 | extern const char applet_names[];
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38 | extern int (*const applet_main[])(int argc, char **argv);
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39 | extern const uint16_t applet_nameofs[];
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40 | extern const uint8_t applet_install_loc[];
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41 |
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42 | #if ENABLE_FEATURE_SUID || ENABLE_FEATURE_PREFER_APPLETS
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43 | # define APPLET_NAME(i) (applet_names + (applet_nameofs[i] & 0x0fff))
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44 | #else
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45 | # define APPLET_NAME(i) (applet_names + applet_nameofs[i])
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46 | #endif
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47 |
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48 | #if ENABLE_FEATURE_PREFER_APPLETS
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49 | # define APPLET_IS_NOFORK(i) (applet_nameofs[i] & (1 << 12))
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50 | # define APPLET_IS_NOEXEC(i) (applet_nameofs[i] & (1 << 13))
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51 | #else
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52 | # define APPLET_IS_NOFORK(i) 0
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53 | # define APPLET_IS_NOEXEC(i) 0
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54 | #endif
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55 |
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56 | #if ENABLE_FEATURE_SUID
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57 | # define APPLET_SUID(i) ((applet_nameofs[i] >> 14) & 0x3)
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58 | #endif
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59 |
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60 | #if ENABLE_FEATURE_INSTALLER
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61 | #define APPLET_INSTALL_LOC(i) ({ \
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62 | unsigned v = (i); \
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63 | if (v & 1) v = applet_install_loc[v/2] >> 4; \
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64 | else v = applet_install_loc[v/2] & 0xf; \
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65 | v; })
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66 | #endif
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67 |
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68 |
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69 | /* Length of these names has effect on size of libbusybox
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70 | * and "individual" binaries. Keep them short.
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71 | */
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72 | #if ENABLE_BUILD_LIBBUSYBOX
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73 | #if ENABLE_FEATURE_SHARED_BUSYBOX
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74 | int lbb_main(char **argv) EXTERNALLY_VISIBLE;
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75 | #else
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76 | int lbb_main(char **argv);
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77 | #endif
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78 | #endif
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79 |
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80 | POP_SAVED_FUNCTION_VISIBILITY
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81 |
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82 | #endif
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