| /* 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" |
| |
| #include <stdio.h> |
| #include <stdarg.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #ifdef DMALLOC |
| #include "dmalloc.h" |
| #endif |
| |
| /* 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 |
| |
| |
| 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; |
| }; |
| /* 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 void show_usage(void) __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 FILE *wfopen(const char *path, const char *mode); |
| extern FILE *xfopen(const char *path, const char *mode); |
| extern void chomp(char *s); |
| extern struct BB_applet *find_applet_by_name(const char *name); |
| void run_applet_by_name(const char *name, int argc, char **argv); |
| |
| #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); |
| extern char * safe_strncpy(char *dst, const char *src, size_t size); |
| |
| struct suffix_mult { |
| char *suffix; |
| int mult; |
| }; |
| |
| extern unsigned long parse_number(const char *numstr, |
| const 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 |
| |
| #ifdef BB_FEATURE_HUMAN_READABLE |
| const char *format(unsigned long val, unsigned long hr); |
| #define KILOBYTE 1024 |
| #define MEGABYTE (KILOBYTE*1024) |
| #define GIGABYTE (MEGABYTE*1024) |
| #endif |
| |
| #ifdef BB_FEATURE_BUFFERS_GO_ON_STACK |
| #define RESERVE_BB_BUFFER(buffer,len) char buffer[len] |
| #define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len] |
| #else |
| #define RESERVE_BB_BUFFER(buffer,len) char *buffer=xmalloc(len) |
| #define RESERVE_BB_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len) |
| #endif |
| |
| #endif /* _BB_INTERNAL_H_ */ |