1 /* vi: set sw=4 ts=4: */
3 * Busybox main internal header file
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
21 * Permission has been granted to redistribute this code under the GPL.
24 #ifndef __LIBCONFIG_H__
25 #define __LIBCONFIG_H__ 1
30 #include <sys/types.h>
40 #if (__GNU_LIBRARY__ < 5) && (!defined __dietlibc__)
41 /* libc5 doesn't define socklen_t */
42 typedef unsigned int socklen_t;
43 /* libc5 doesn't implement BSD 4.4 daemon() */
44 extern int daemon (int nochdir, int noclose);
45 /* libc5 doesn't implement strtok_r */
46 char *strtok_r(char *s, const char *delim, char **ptrptr);
49 /* Some useful definitions */
50 #define FALSE ((int) 0)
51 #define TRUE ((int) 1)
52 #define SKIP ((int) 2)
55 #define MTAB_GETMOUNTPT '1'
56 #define MTAB_GETDEVICE '2'
59 #define EXPAND_ALLOC 1024
61 static inline int is_decimal(int ch) { return ((ch >= '0') && (ch <= '9')); }
62 static inline int is_octal(int ch) { return ((ch >= '0') && (ch <= '7')); }
64 /* Macros for min/max. */
66 #define MIN(a,b) (((a)<(b))?(a):(b))
70 #define MAX(a,b) (((a)>(b))?(a):(b))
75 extern void show_usage(void) __attribute__ ((noreturn));
76 extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
77 extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
78 extern void perror_msg(const char *s, ...);
79 extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
80 extern void vherror_msg(const char *s, va_list p);
81 extern void herror_msg(const char *s, ...);
82 extern void herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
84 /* These two are used internally -- you shouldn't need to use them */
85 extern void verror_msg(const char *s, va_list p);
86 extern void vperror_msg(const char *s, va_list p);
88 const char *mode_string(int mode);
89 const char *time_string(time_t timeVal);
90 int is_directory(const char *name, int followLinks, struct stat *statBuf);
91 int isDevice(const char *name);
93 int remove_file(const char *path, int flags);
94 int copy_file(const char *source, const char *dest, int flags);
95 int copy_file_chunk(FILE *src_file, FILE *dst_file, unsigned long long chunksize);
96 char *buildName(const char *dirName, const char *fileName);
97 int makeString(int argc, const char **argv, char *buf, int bufLen);
98 char *getChunk(int size);
99 char *chunkstrdup(const char *str);
100 void freeChunks(void);
101 ssize_t safe_read(int fd, void *buf, size_t count);
102 int full_write(int fd, const char *buf, int len);
103 int full_read(int fd, char *buf, int len);
104 int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst,
105 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
106 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
109 extern int parse_mode( const char* s, mode_t* theMode);
111 extern int get_kernel_revision(void);
113 extern int get_console_fd(char* tty_name);
114 extern struct mntent *find_mount_point(const char *name, const char *table);
115 extern void write_mtab(char* blockDevice, char* directory,
116 char* filesystemType, long flags, char* string_flags);
117 extern void erase_mtab(const char * name);
118 extern long atoi_w_units (const char *cp);
119 extern long* find_pid_by_name( char* pidName);
120 extern char *find_real_root_device_name(const char* name);
121 extern char *get_line_from_file(FILE *file);
122 extern void print_file(FILE *file);
123 extern int copyfd(int fd1, int fd2);
124 extern int print_file_by_name(char *filename);
125 extern char process_escape_sequence(const char **ptr);
126 extern char *get_last_path_component(char *path);
127 extern FILE *wfopen(const char *path, const char *mode);
128 extern FILE *xfopen(const char *path, const char *mode);
129 extern void chomp(char *s);
130 extern void trim(char *s);
131 extern struct BB_applet *find_applet_by_name(const char *name);
132 void run_applet_by_name(const char *name, int argc, char **argv);
135 extern void *xmalloc (size_t size);
136 extern void *xrealloc(void *old, size_t size);
137 extern void *xcalloc(size_t nmemb, size_t size);
138 extern char *xstrdup (const char *s);
140 extern char *xstrndup (const char *s, int n);
141 extern char * safe_strncpy(char *dst, const char *src, size_t size);
148 extern unsigned long parse_number(const char *numstr,
149 const struct suffix_mult *suffixes);
152 /* These parse entries in /etc/passwd and /etc/group. This is desirable
153 * for BusyBox since we want to avoid using the glibc NSS stuff, which
154 * increases target size and is often not needed embedded systems. */
155 extern long my_getpwnam(const char *name);
156 extern long my_getgrnam(const char *name);
157 extern void my_getpwuid(char *name, long uid);
158 extern void my_getgrgid(char *group, long gid);
159 extern long my_getpwnamegid(const char *name);
161 extern int device_open(char *device, int mode);
163 extern int del_loop(const char *device);
164 extern int set_loop(const char *device, const char *file, int offset, int *loopro);
165 extern char *find_unused_loop_device (void);
169 extern int vdprintf(int d, const char *format, va_list ap);
172 int nfsmount(const char *spec, const char *node, int *flags,
173 char **extra_opts, char **mount_opts, int running_bg);
175 void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg);
176 void syslog_msg(int facility, int pri, const char *msg);
178 /* Include our own copy of struct sysinfo to avoid binary compatability
179 * problems with Linux 2.4, which changed things. Grumble, grumble. */
181 long uptime; /* Seconds since boot */
182 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
183 unsigned long totalram; /* Total usable main memory size */
184 unsigned long freeram; /* Available memory size */
185 unsigned long sharedram; /* Amount of shared memory */
186 unsigned long bufferram; /* Memory used by buffers */
187 unsigned long totalswap; /* Total swap space size */
188 unsigned long freeswap; /* swap space still available */
189 unsigned short procs; /* Number of current processes */
190 unsigned short pad; /* Padding needed for m68k */
191 unsigned long totalhigh; /* Total high memory size */
192 unsigned long freehigh; /* Available high memory size */
193 unsigned int mem_unit; /* Memory unit size in bytes */
194 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
196 extern int sysinfo (struct sysinfo* info);
200 MEGABYTE = (KILOBYTE*1024),
201 GIGABYTE = (MEGABYTE*1024)
203 const char *make_human_readable_str(unsigned long size, unsigned long block_size, unsigned long display_unit);
205 int ask_confirmation(void);
206 int klogctl(int type, char * b, int len);
208 char *xgetcwd(char *cwd);
209 char *xreadlink(const char *path);
210 char *concat_path_file(const char *path, const char *filename);
211 char *last_char_is(const char *s, int c);
213 extern long arith (const char *startbuf, int *errcode);
215 int read_package_field(const char *package_buffer, char **field_name, char **field_value);
216 char *fgets_str(FILE *file, const char *terminating_string);
218 extern int inflate(FILE *in, FILE *out);
219 extern int unzip(FILE *l_in_file, FILE *l_out_file);
220 extern void gz_close(int gunzip_pid);
221 extern FILE *gz_open(FILE *compressed_file, int *pid);
223 extern struct hostent *xgethostbyname(const char *name);
224 extern int create_icmp_socket(void);
226 char *dirname (char *path);
228 int make_directory (char *path, long mode, int flags);
230 const char *u_signal_names(const char *str_sig, int *signo, int startnum);
231 char *simplify_path(const char *path);
234 #define CT_UNIX2DOS 1
235 #define CT_DOS2UNIX 2
236 /* extern int convert(char *fn, int ConvType); */
239 FILEUTILS_PRESERVE_STATUS = 1,
240 FILEUTILS_DEREFERENCE = 2,
243 FILEUTILS_INTERACTIVE = 16
246 extern const char *applet_name;
247 extern const char * const full_version;
248 extern const char * const name_too_long;
249 extern const char * const omitting_directory;
250 extern const char * const not_a_directory;
251 extern const char * const memory_exhausted;
252 extern const char * const invalid_date;
253 extern const char * const invalid_option;
254 extern const char * const io_error;
255 extern const char * const dash_dash_help;
256 extern const char * const write_error;
257 extern const char * const too_few_args;
258 extern const char * const name_longer_than_foo;
259 extern const char * const unknown;
260 extern const char * const can_not_create_raw_socket;
262 #ifdef CONFIG_FEATURE_DEVFS
263 # define CURRENT_VC "/dev/vc/0"
264 # define VC_1 "/dev/vc/1"
265 # define VC_2 "/dev/vc/2"
266 # define VC_3 "/dev/vc/3"
267 # define VC_4 "/dev/vc/4"
268 # define VC_5 "/dev/vc/5"
269 # define SC_0 "/dev/tts/0"
270 # define SC_1 "/dev/tts/1"
271 # define VC_FORMAT "/dev/vc/%d"
272 # define SC_FORMAT "/dev/tts/%d"
273 # define LOOP_FORMAT "/dev/loop/%d"
275 # define CURRENT_VC "/dev/tty0"
276 # define VC_1 "/dev/tty1"
277 # define VC_2 "/dev/tty2"
278 # define VC_3 "/dev/tty3"
279 # define VC_4 "/dev/tty4"
280 # define VC_5 "/dev/tty5"
281 # define SC_0 "/dev/ttyS0"
282 # define SC_1 "/dev/ttyS1"
283 # define VC_FORMAT "/dev/tty%d"
284 # define SC_FORMAT "/dev/ttyS%d"
285 # define LOOP_FORMAT "/dev/loop%d"
288 /* The following devices are the same on devfs and non-devfs systems. */
289 #define CURRENT_TTY "/dev/tty"
290 #define CONSOLE_DEV "/dev/console"
292 int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
293 void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
294 void reset_ino_dev_hashtable(void);
296 #endif /* __LIBCONFIG_H__ */