/* vi: set sw=4 ts=4: */ /* * Busybox main internal header file * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Based in part on code from sash, Copyright (c) 1999 by David I. Bell * Permission has been granted to redistribute this code under the GPL. * */ #ifndef _BB_INTERNAL_H_ #define _BB_INTERNAL_H_ 1 #include "Config.h" #ifdef DMALLOC #include "dmalloc.h" #endif #include #include #include #include #include #include #include #include #include /* for the _syscall() macros */ #include #include /* Some useful definitions */ #define FALSE ((int) 0) #define TRUE ((int) 1) #define SKIP ((int) 2) /* for mtab.c */ #define MTAB_GETMOUNTPT '1' #define MTAB_GETDEVICE '2' #define BUF_SIZE 8192 #define EXPAND_ALLOC 1024 static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); } static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); } /* Macros for min/max. */ #ifndef MIN #define MIN(a,b) (((a)<(b))?(a):(b)) #endif #ifndef MAX #define MAX(a,b) (((a)>(b))?(a):(b)) #endif /* I don't like nested includes, but the string and io functions are used * too often */ #include #if !defined(NO_STRING_H) || defined(STDC_HEADERS) # include # if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__) # include # endif # define memzero(s, n) memset ((void *)(s), 0, (n)) #else # include # define strchr index # define strrchr rindex # define memcpy(d, s, n) bcopy((s), (d), (n)) # define memcmp(s1, s2, n) bcmp((s1), (s2), (n)) # define memzero(s, n) bzero((s), (n)) #endif enum Location { _BB_DIR_ROOT = 0, _BB_DIR_BIN, _BB_DIR_SBIN, _BB_DIR_USR_BIN, _BB_DIR_USR_SBIN }; struct BB_applet { const char* name; int (*main)(int argc, char** argv); enum Location location; const char* usage; }; /* From busybox.c */ extern const struct BB_applet applets[]; /* Automagically pull in all the applet function prototypes and * applet usage strings. These are all of the form: * extern int foo_main(int argc, char **argv); * extern const char foo_usage[]; * These are all autogenerated from the set of currently defined applets. */ #define PROTOTYPES #include "applets.h" #undef PROTOTYPES extern const char *applet_name; extern int applet_name_compare(const void *x, const void *y); extern void usage(const char *usage) __attribute__ ((noreturn)); extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); extern void perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); const char *mode_string(int mode); const char *time_string(time_t timeVal); int is_directory(const char *name, const int followLinks, struct stat *statBuf); int isDevice(const char *name); typedef struct ino_dev_hash_bucket_struct { struct ino_dev_hash_bucket_struct *next; ino_t ino; dev_t dev; char name[1]; } ino_dev_hashtable_bucket_t; int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name); void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name); void reset_ino_dev_hashtable(void); int copy_file(const char *srcName, const char *destName, int setModes, int followLinks, int forceFlag); int copy_file_chunk(int srcFd, int dstFd, size_t remaining); char *buildName(const char *dirName, const char *fileName); int makeString(int argc, const char **argv, char *buf, int bufLen); char *getChunk(int size); char *chunkstrdup(const char *str); void freeChunks(void); ssize_t safe_read(int fd, void *buf, size_t count); int full_write(int fd, const char *buf, int len); int full_read(int fd, char *buf, int len); int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst, int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData), int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData), void* userData); extern int create_path (const char *name, int mode); extern int parse_mode( const char* s, mode_t* theMode); extern int get_kernel_revision(void); extern int get_console_fd(char* tty_name); extern struct mntent *find_mount_point(const char *name, const char *table); extern void write_mtab(char* blockDevice, char* directory, char* filesystemType, long flags, char* string_flags); extern void erase_mtab(const char * name); extern void mtab_read(void); extern char *mtab_first(void **iter); extern char *mtab_next(void **iter); extern char *mtab_getinfo(const char *match, const char which); extern int check_wildcard_match(const char* text, const char* pattern); extern long atoi_w_units (const char *cp); extern pid_t* find_pid_by_name( char* pidName); extern int find_real_root_device_name(char* name); extern char *get_line_from_file(FILE *file); extern void print_file(FILE *file); extern int print_file_by_name(char *filename); extern char process_escape_sequence(char **ptr); extern char *get_last_path_component(char *path); extern void xregcomp(regex_t *preg, const char *regex, int cflags); extern FILE *wfopen(const char *path, const char *mode); extern FILE *xfopen(const char *path, const char *mode); #ifndef DMALLOC extern void *xmalloc (size_t size); extern void *xrealloc(void *old, size_t size); extern void *xcalloc(size_t nmemb, size_t size); extern char *xstrdup (const char *s); #endif extern char *xstrndup (const char *s, int n); struct suffix_mult { char *suffix; int mult; }; extern unsigned long parse_number(const char *numstr, struct suffix_mult *suffixes); /* These parse entries in /etc/passwd and /etc/group. This is desirable * for BusyBox since we want to avoid using the glibc NSS stuff, which * increases target size and is often not needed embedded systems. */ extern long my_getpwnam(char *name); extern long my_getgrnam(char *name); extern void my_getpwuid(char *name, long uid); extern void my_getgrgid(char *group, long gid); extern long my_getpwnamegid(char *name); extern int device_open(char *device, int mode); #if defined BB_FEATURE_MOUNT_LOOP extern int del_loop(const char *device); extern int set_loop(const char *device, const char *file, int offset, int *loopro); extern char *find_unused_loop_device (void); #endif #if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT) extern int vdprintf(int d, const char *format, va_list ap); #endif #if defined BB_NFSMOUNT int nfsmount(const char *spec, const char *node, int *flags, char **extra_opts, char **mount_opts, int running_bg); #endif #ifndef RB_POWER_OFF /* Stop system and switch power off if possible. */ #define RB_POWER_OFF 0x4321fedc #endif /* Include our own copy of struct sysinfo to avoid binary compatability * problems with Linux 2.4, which changed things. Grumble, grumble. */ struct sysinfo { long uptime; /* Seconds since boot */ unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ unsigned long totalram; /* Total usable main memory size */ unsigned long freeram; /* Available memory size */ unsigned long sharedram; /* Amount of shared memory */ unsigned long bufferram; /* Memory used by buffers */ unsigned long totalswap; /* Total swap space size */ unsigned long freeswap; /* swap space still available */ unsigned short procs; /* Number of current processes */ unsigned long totalhigh; /* Total high memory size */ unsigned long freehigh; /* Available high memory size */ unsigned int mem_unit; /* Memory unit size in bytes */ char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ }; extern int sysinfo (struct sysinfo* info); /* Bit map related macros -- libc5 doens't provide these... sigh. */ #ifndef setbit #define NBBY CHAR_BIT #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) #endif #endif /* _BB_INTERNAL_H_ */