263 lines
8.8 KiB
C
263 lines
8.8 KiB
C
/* 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 <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <mntent.h>
|
|
#include <regex.h>
|
|
/* for the _syscall() macros */
|
|
#include <sys/syscall.h>
|
|
#include <linux/unistd.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
|
|
|
|
|
|
/* I don't like nested includes, but the string and io functions are used
|
|
* too often
|
|
*/
|
|
#include <stdio.h>
|
|
#if !defined(NO_STRING_H) || defined(STDC_HEADERS)
|
|
# include <string.h>
|
|
# if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__)
|
|
# include <memory.h>
|
|
# endif
|
|
# define memzero(s, n) memset ((void *)(s), 0, (n))
|
|
#else
|
|
# include <strings.h>
|
|
# 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_ */
|