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>
44 #ifdef CONFIG_FEATURE_SHADOWPASSWDS
47 #ifdef CONFIG_FEATURE_SHA1_PASSWORDS
51 /* Compatability with ANSI C */
56 #if (__GNU_LIBRARY__ < 5) && (!defined __dietlibc__)
57 /* libc5 doesn't define socklen_t */
60 typedef unsigned int socklen_t;
62 /* libc5 doesn't implement BSD 4.4 daemon() */
63 extern int daemon (int nochdir, int noclose);
64 /* libc5 doesn't implement strtok_r */
65 char *strtok_r(char *s, const char *delim, char **ptrptr);
68 /* Some useful definitions */
69 #define FALSE ((int) 0)
70 #define TRUE ((int) 1)
71 #define SKIP ((int) 2)
74 #define MTAB_GETMOUNTPT '1'
75 #define MTAB_GETDEVICE '2'
78 #define EXPAND_ALLOC 1024
80 /* Macros for min/max. */
82 #define MIN(a,b) (((a)<(b))?(a):(b))
86 #define MAX(a,b) (((a)>(b))?(a):(b))
89 extern void show_usage(void) __attribute__ ((noreturn));
90 extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
91 extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
92 extern void perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
93 extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
94 extern void vherror_msg(const char *s, va_list p);
95 extern void herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
96 extern void herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
98 /* These two are used internally -- you shouldn't need to use them */
99 extern void verror_msg(const char *s, va_list p);
100 extern void vperror_msg(const char *s, va_list p);
102 const char *mode_string(int mode);
103 const char *time_string(time_t timeVal);
104 int is_directory(const char *name, int followLinks, struct stat *statBuf);
105 int isDevice(const char *name);
107 int remove_file(const char *path, int flags);
108 int copy_file(const char *source, const char *dest, int flags);
109 int copy_file_chunk(FILE *src_file, FILE *dst_file, unsigned long long chunksize);
110 char *buildName(const char *dirName, const char *fileName);
111 int makeString(int argc, const char **argv, char *buf, int bufLen);
112 char *getChunk(int size);
113 char *chunkstrdup(const char *str);
114 void freeChunks(void);
115 ssize_t safe_read(int fd, void *buf, size_t count);
116 int full_write(int fd, const char *buf, int len);
117 int full_read(int fd, char *buf, int len);
118 int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst,
119 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
120 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
123 extern int parse_mode( const char* s, mode_t* theMode);
124 extern long bb_xgetlarg(char *arg, int base, long lower, long upper);
126 extern int get_kernel_revision(void);
128 extern int get_console_fd(void);
129 extern struct mntent *find_mount_point(const char *name, const char *table);
130 extern void write_mtab(char* blockDevice, char* directory,
131 char* filesystemType, long flags, char* string_flags);
132 extern void erase_mtab(const char * name);
133 extern long atoi_w_units (const char *cp);
134 extern long* find_pid_by_name( const char* pidName);
135 extern char *find_real_root_device_name(const char* name);
136 extern char *get_line_from_file(FILE *file);
137 extern void print_file(FILE *file);
138 extern int copyfd(int fd1, int fd2, const off_t chunksize);
139 extern int print_file_by_name(char *filename);
140 extern char process_escape_sequence(const char **ptr);
141 extern char *get_last_path_component(char *path);
142 extern FILE *wfopen(const char *path, const char *mode);
143 extern FILE *xfopen(const char *path, const char *mode);
144 extern void chomp(char *s);
145 extern void trim(char *s);
146 extern struct BB_applet *find_applet_by_name(const char *name);
147 void run_applet_by_name(const char *name, int argc, char **argv);
150 extern void *xmalloc (size_t size);
151 extern void *xrealloc(void *old, size_t size);
152 extern void *xcalloc(size_t nmemb, size_t size);
153 extern char *xstrdup (const char *s);
155 extern char *xstrndup (const char *s, int n);
156 extern char * safe_strncpy(char *dst, const char *src, size_t size);
163 extern unsigned long parse_number(const char *numstr,
164 const struct suffix_mult *suffixes);
167 /* These parse entries in /etc/passwd and /etc/group. This is desirable
168 * for BusyBox since we want to avoid using the glibc NSS stuff, which
169 * increases target size and is often not needed embedded systems. */
170 extern long my_getpwnam(const char *name);
171 extern long my_getgrnam(const char *name);
172 extern char * my_getpwuid(char *name, long uid);
173 extern char * my_getgrgid(char *group, long gid);
174 extern long my_getpwnamegid(const char *name);
176 extern int device_open(const char *device, int mode);
178 extern int del_loop(const char *device);
179 extern int set_loop(const char *device, const char *file, int offset, int *loopro);
180 extern char *find_unused_loop_device (void);
184 extern int vdprintf(int d, const char *format, va_list ap);
187 int nfsmount(const char *spec, const char *node, int *flags,
188 char **extra_opts, char **mount_opts, int running_bg);
190 void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg);
191 void syslog_msg(int facility, int pri, const char *msg);
193 /* Include our own copy of struct sysinfo to avoid binary compatability
194 * problems with Linux 2.4, which changed things. Grumble, grumble. */
196 long uptime; /* Seconds since boot */
197 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
198 unsigned long totalram; /* Total usable main memory size */
199 unsigned long freeram; /* Available memory size */
200 unsigned long sharedram; /* Amount of shared memory */
201 unsigned long bufferram; /* Memory used by buffers */
202 unsigned long totalswap; /* Total swap space size */
203 unsigned long freeswap; /* swap space still available */
204 unsigned short procs; /* Number of current processes */
205 unsigned short pad; /* Padding needed for m68k */
206 unsigned long totalhigh; /* Total high memory size */
207 unsigned long freehigh; /* Available high memory size */
208 unsigned int mem_unit; /* Memory unit size in bytes */
209 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
211 extern int sysinfo (struct sysinfo* info);
215 MEGABYTE = (KILOBYTE*1024),
216 GIGABYTE = (MEGABYTE*1024)
218 const char *make_human_readable_str(unsigned long size, unsigned long block_size, unsigned long display_unit);
220 int ask_confirmation(void);
221 int klogctl(int type, char * b, int len);
223 char *xgetcwd(char *cwd);
224 char *xreadlink(const char *path);
225 char *concat_path_file(const char *path, const char *filename);
226 char *last_char_is(const char *s, int c);
228 extern long arith (const char *startbuf, int *errcode);
230 int read_package_field(const char *package_buffer, char **field_name, char **field_value);
231 char *fgets_str(FILE *file, const char *terminating_string);
233 extern int uncompress(int fd_in, int fd_out);
234 extern int inflate(int in, int out);
236 extern struct hostent *xgethostbyname(const char *name);
237 extern struct hostent *xgethostbyname2(const char *name, int af);
238 extern int create_icmp_socket(void);
239 extern int create_icmp6_socket(void);
240 extern int xconnect(const char *host, const char *port);
242 char *dirname (char *path);
244 int make_directory (char *path, long mode, int flags);
246 const char *u_signal_names(const char *str_sig, int *signo, int startnum);
247 char *simplify_path(const char *path);
250 #define CT_UNIX2DOS 1
251 #define CT_DOS2UNIX 2
252 /* extern int convert(char *fn, int ConvType); */
255 FILEUTILS_PRESERVE_STATUS = 1,
256 FILEUTILS_DEREFERENCE = 2,
259 FILEUTILS_INTERACTIVE = 16
262 extern const char *applet_name;
263 extern const char * const full_version;
264 extern const char * const name_too_long;
265 extern const char * const omitting_directory;
266 extern const char * const not_a_directory;
267 extern const char * const memory_exhausted;
268 extern const char * const invalid_date;
269 extern const char * const invalid_option;
270 extern const char * const io_error;
271 extern const char * const dash_dash_help;
272 extern const char * const write_error;
273 extern const char * const too_few_args;
274 extern const char * const name_longer_than_foo;
275 extern const char * const unknown;
276 extern const char * const can_not_create_raw_socket;
277 extern const char * const nologin_file;
278 extern const char * const passwd_file;
279 extern const char * const shadow_file;
280 extern const char * const gshadow_file;
281 extern const char * const group_file;
282 extern const char * const securetty_file;
283 extern const char * const motd_file;
284 extern const char * const _path_login;
286 #ifdef CONFIG_FEATURE_DEVFS
287 # define CURRENT_VC "/dev/vc/0"
288 # define VC_1 "/dev/vc/1"
289 # define VC_2 "/dev/vc/2"
290 # define VC_3 "/dev/vc/3"
291 # define VC_4 "/dev/vc/4"
292 # define VC_5 "/dev/vc/5"
293 # define SC_0 "/dev/tts/0"
294 # define SC_1 "/dev/tts/1"
295 # define VC_FORMAT "/dev/vc/%d"
296 # define SC_FORMAT "/dev/tts/%d"
297 # define LOOP_FORMAT "/dev/loop/%d"
299 # define CURRENT_VC "/dev/tty0"
300 # define VC_1 "/dev/tty1"
301 # define VC_2 "/dev/tty2"
302 # define VC_3 "/dev/tty3"
303 # define VC_4 "/dev/tty4"
304 # define VC_5 "/dev/tty5"
305 # define SC_0 "/dev/ttyS0"
306 # define SC_1 "/dev/ttyS1"
307 # define VC_FORMAT "/dev/tty%d"
308 # define SC_FORMAT "/dev/ttyS%d"
309 # define LOOP_FORMAT "/dev/loop%d"
312 /* The following devices are the same on devfs and non-devfs systems. */
313 #define CURRENT_TTY "/dev/tty"
314 #define CONSOLE_DEV "/dev/console"
316 int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
317 void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
318 void reset_ino_dev_hashtable(void);
320 /* Stupid gcc always includes its own builtin strlen()... */
321 extern size_t xstrlen(const char *string);
322 #define strlen(x) xstrlen(x)
324 void bb_asprintf(char **string_ptr, const char *format, ...) __attribute__ ((format (printf, 2, 3)));
328 extern void change_identity ( const struct passwd *pw );
329 extern void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args );
330 extern int run_parts(char **args, const unsigned char test_mode);
331 extern int restricted_shell ( const char *shell );
332 extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw );
333 extern int correct_password ( const struct passwd *pw );
334 extern char *pw_encrypt(const char *clear, const char *salt);
335 extern struct spwd *pwd_to_spwd(const struct passwd *pw);
336 extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
338 extern int xopen(const char *pathname, int flags);
339 extern ssize_t xread(int fd, void *buf, size_t count);
340 extern void xread_all(int fd, void *buf, size_t count);
341 extern unsigned char xread_char(int fd);
349 #ifdef FEATURE_CPU_USAGE_PERCENTAGE
351 unsigned long stime, utime;
355 /* basename of executable file in call to exec(2),
356 size from kernel headers */
360 extern procps_status_t * procps_scan(int save_user_arg0);
361 extern unsigned short compare_string_array(const char *string_array[], const char *key);
363 extern int my_query_module(const char *name, int which, void **buf, size_t *bufsize, size_t *ret);
365 typedef struct llist_s {
367 struct llist_s *link;
369 extern llist_t *llist_add_to(llist_t *old_head, char *new_item);
371 void print_login_issue(const char *issue_file, const char *tty);
372 void print_login_prompt(void);
374 #endif /* __LIBCONFIG_H__ */