aboutsummaryrefslogtreecommitdiff
path: root/internal.h
blob: c39dfde62df91e21495c2dc8f396f012c27d6efd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
/* 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 "busybox.def.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 <mntent.h>
#if ! defined(__GLIBC__) && ! defined (__UCLIBC__)
#include <asm/string.h>
#endif


/* Some useful definitions */
#define FALSE   ((int) 1)
#define TRUE    ((int) 0)

/* for mtab.c */
#define MTAB_GETMOUNTPT '1'
#define MTAB_GETDEVICE  '2'

#define BUF_SIZE        8192
#define EXPAND_ALLOC    1024


#define isBlank(ch)     (((ch) == ' ') || ((ch) == '\t'))
#define isDecimal(ch)   (((ch) >= '0') && ((ch) <= '9'))
#define isOctal(ch)     (((ch) >= '0') && ((ch) <= '7'))
#define isWildCard(ch)  (((ch) == '*') || ((ch) == '?') || ((ch) == '['))

/* 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;
};
/* From busybox.c */
extern const struct BB_applet applets[];

extern int ar_main(int argc, char **argv);
extern int basename_main(int argc, char **argv);
extern int busybox_main(int argc, char** argv);
extern int block_device_main(int argc, char** argv);
extern int cat_main(int argc, char** argv);
extern int chmod_chown_chgrp_main(int argc, char** argv);
extern int chroot_main(int argc, char** argv);
extern int chvt_main(int argc, char** argv);
extern int clear_main(int argc, char** argv);
extern int cp_mv_main(int argc, char** argv);
extern int cut_main(int argc, char** argv);
extern int date_main(int argc, char** argv);
extern int dc_main(int argc, char** argv);
extern int dd_main(int argc, char** argv);
extern int dirname_main(int argc, char** argv);
extern int deallocvt_main(int argc, char** argv);
extern int df_main(int argc, char** argv);
extern int dmesg_main(int argc, char** argv);
extern int du_main(int argc, char** argv);
extern int dutmp_main(int argc, char** argv);
extern int echo_main(int argc, char** argv);
extern int false_main(int argc, char** argv);
extern int fbset_main(int argc, char** argv);
extern int fdisk_main(int argc, char** argv);
extern int fdflush_main(int argc, char **argv);
extern int fsck_minix_main(int argc, char **argv);
extern int find_main(int argc, char** argv);
extern int free_main(int argc, char** argv);
extern int freeramdisk_main(int argc, char** argv);
extern int grep_main(int argc, char** argv);
extern int gunzip_main (int argc, char** argv);
extern int gzip_main(int argc, char** argv);
extern int halt_main(int argc, char** argv);
extern int head_main(int argc, char** argv);
extern int hostid_main(int argc, char** argv);
extern int hostname_main(int argc, char** argv);
extern int id_main(int argc, char** argv);
extern int init_main(int argc, char** argv);
extern int insmod_main(int argc, char** argv);
extern int kill_main(int argc, char** argv);
extern int length_main(int argc, char** argv);
extern int ln_main(int argc, char** argv);
extern int loadacm_main(int argc, char** argv);
extern int loadfont_main(int argc, char** argv);
extern int loadkmap_main(int argc, char** argv);
extern int losetup_main(int argc, char** argv);
extern int logger_main(int argc, char **argv);
extern int logname_main(int argc, char **argv);
extern int ls_main(int argc, char** argv);
extern int lsmod_main(int argc, char** argv);
extern int makedevs_main(int argc, char** argv);
extern int md5sum_main(int argc, char** argv);
extern int mkdir_main(int argc, char** argv);
extern int mkfifo_main(int argc, char **argv);
extern int mkfs_minix_main(int argc, char **argv);
extern int mknod_main(int argc, char** argv);
extern int mkswap_main(int argc, char** argv);
extern int mktemp_main(int argc, char **argv);
extern int nc_main(int argc, char** argv);
extern int more_main(int argc, char** argv);
extern int mount_main(int argc, char** argv);
extern int mt_main(int argc, char** argv);
extern int nslookup_main(int argc, char **argv);
extern int ping_main(int argc, char **argv);
extern int poweroff_main(int argc, char **argv);
extern int printf_main(int argc, char** argv);
extern int ps_main(int argc, char** argv);
extern int pwd_main(int argc, char** argv);
extern int reboot_main(int argc, char** argv);
extern int rm_main(int argc, char** argv);
extern int rmdir_main(int argc, char **argv);
extern int rmmod_main(int argc, char** argv);
extern int sed_main(int argc, char** argv);
extern int sfdisk_main(int argc, char** argv);
extern int setkeycodes_main(int argc, char** argv);
extern int shell_main(int argc, char** argv);
extern int sleep_main(int argc, char** argv);
extern int sort_main(int argc, char** argv);
extern int swap_on_off_main(int argc, char** argv);
extern int sync_main(int argc, char** argv);
extern int syslogd_main(int argc, char **argv);
extern int tail_main(int argc, char** argv);
extern int tar_main(int argc, char** argv);
extern int tee_main(int argc, char** argv);
extern int test_main(int argc, char** argv);
extern int telnet_main(int argc, char** argv);
extern int touch_main(int argc, char** argv);
extern int tr_main(int argc, char** argv);
extern int true_main(int argc, char** argv);
extern int tput_main(int argc, char** argv);
extern int tryopen_main(int argc, char** argv);
extern int tty_main(int argc, char** argv);
extern int uuencode_main(int argc, char** argv);
extern int uudecode_main(int argc, char** argv);
extern int umount_main(int argc, char** argv);
extern int uname_main(int argc, char** argv);
extern int uptime_main(int argc, char** argv);
extern int uniq_main(int argc, char** argv);
extern int update_main(int argc, char** argv);
extern int usleep_main(int argc, char** argv);
extern int wc_main(int argc, char** argv);
extern int which_main(int argc, char** argv);
extern int whoami_main(int argc, char** argv);
extern int yes_main(int argc, char** argv);


extern void usage(const char *usage) __attribute__ ((noreturn));
extern void errorMsg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
extern void fatalError(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));

const char *modeString(int mode);
const char *timeString(time_t timeVal);
int isDirectory(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 copyFile(const char *srcName, const char *destName,
		 int setModes, int followLinks, int forceFlag);
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);
int fullWrite(int fd, const char *buf, int len);
int fullRead(int fd, char *buf, int len);
int recursiveAction(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);
const char* timeString(time_t timeVal);

extern int createPath (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 *findMountPoint(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 getNum (const char *cp);
extern pid_t* findPidByName( char* pidName);
extern void *xmalloc (size_t size);
extern int find_real_root_device_name(char* name);
extern char *cstring_lineFromFile(FILE *f);

/* 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 unsigned long my_getpwnam(char *name);
extern unsigned long my_getgrnam(char *name);
extern void my_getpwuid(char *name, unsigned long uid);
extern void my_getgrgid(char *group, unsigned long gid);
extern unsigned long my_getpwnamegid(char *name);


#if defined BB_INIT || defined BB_SYSLOGD
extern int device_open(char *device, int mode);
#endif
#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, unsigned long *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_ */