git.maemo.org Git - busybox4maemo/blob - 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_main[])(int argc, char **argv);
  32 extern const uint16_t applet_nameofs[];
  33 extern const uint8_t applet_install_loc[];
  34
  35 #if ENABLE_FEATURE_SUID || ENABLE_FEATURE_PREFER_APPLETS
  36 #define APPLET_NAME(i) (applet_names + (applet_nameofs[i] & 0x0fff))
  37 #else
  38 #define APPLET_NAME(i) (applet_names + applet_nameofs[i])
  39 #endif
  40
  41 #if ENABLE_FEATURE_PREFER_APPLETS
  42 #define APPLET_IS_NOFORK(i) (applet_nameofs[i] & (1 << 12))
  43 #define APPLET_IS_NOEXEC(i) (applet_nameofs[i] & (1 << 13))
  44 #endif
  45
  46 #if ENABLE_FEATURE_SUID
  47 #define APPLET_SUID(i) ((applet_nameofs[i] >> 14) & 0x3)
  48 #endif
  49
  50 #if ENABLE_FEATURE_INSTALLER
  51 #define APPLET_INSTALL_LOC(i) ({ \
  52         unsigned v = (i); \
  53         if (v & 1) v = applet_install_loc[v/2] >> 4; \
  54         else v = applet_install_loc[v/2] & 0xf; \
  55         v; })
  56 #endif
  57
  58
  59 /* Length of these names has effect on size of libbusybox
  60  * and "individual" binaries. Keep them short.
  61  */
  62 void lbb_prepare(const char *applet
  63         USE_FEATURE_INDIVIDUAL(, char **argv)
  64         ) MAIN_EXTERNALLY_VISIBLE;
  65 #if ENABLE_BUILD_LIBBUSYBOX
  66 #if ENABLE_FEATURE_SHARED_BUSYBOX
  67 int lbb_main(char **argv) EXTERNALLY_VISIBLE;
  68 #else
  69 int lbb_main(char **argv);
  70 #endif
  71 #endif
  72
  73
  74 #endif  /* _BB_INTERNAL_H_ */