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
52 #if (__GNU_LIBRARY__ < 5) && (!defined __dietlibc__)
53 /* libc5 doesn't define socklen_t */
54 typedef unsigned int socklen_t;
55 /* libc5 doesn't implement BSD 4.4 daemon() */
56 extern int daemon (int nochdir, int noclose);
57 /* libc5 doesn't implement strtok_r */
58 char *strtok_r(char *s, const char *delim, char **ptrptr);
61 /* Some useful definitions */
62 #define FALSE ((int) 0)
63 #define TRUE ((int) 1)
64 #define SKIP ((int) 2)
67 #define MTAB_GETMOUNTPT '1'
68 #define MTAB_GETDEVICE '2'
71 #define EXPAND_ALLOC 1024
73 /* Macros for min/max. */
75 #define MIN(a,b) (((a)<(b))?(a):(b))
79 #define MAX(a,b) (((a)>(b))?(a):(b))
84 extern void show_usage(void) __attribute__ ((noreturn));
85 extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
86 extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
87 extern void perror_msg(const char *s, ...);
88 extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
89 extern void vherror_msg(const char *s, va_list p);
90 extern void herror_msg(const char *s, ...);
91 extern void herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
93 /* These two are used internally -- you shouldn't need to use them */
94 extern void verror_msg(const char *s, va_list p);
95 extern void vperror_msg(const char *s, va_list p);
97 const char *mode_string(int mode);
98 const char *time_string(time_t timeVal);
99 int is_directory(const char *name, int followLinks, struct stat *statBuf);
100 int isDevice(const char *name);
102 int remove_file(const char *path, int flags);
103 int copy_file(const char *source, const char *dest, int flags);
104 int copy_file_chunk(FILE *src_file, FILE *dst_file, unsigned long long chunksize);
105 char *buildName(const char *dirName, const char *fileName);
106 int makeString(int argc, const char **argv, char *buf, int bufLen);
107 char *getChunk(int size);
108 char *chunkstrdup(const char *str);
109 void freeChunks(void);
110 ssize_t safe_read(int fd, void *buf, size_t count);
111 int full_write(int fd, const char *buf, int len);
112 int full_read(int fd, char *buf, int len);
113 int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst,
114 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
115 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
118 extern int parse_mode( const char* s, mode_t* theMode);
120 extern int get_kernel_revision(void);
122 extern int get_console_fd(char* tty_name);
123 extern struct mntent *find_mount_point(const char *name, const char *table);
124 extern void write_mtab(char* blockDevice, char* directory,
125 char* filesystemType, long flags, char* string_flags);
126 extern void erase_mtab(const char * name);
127 extern long atoi_w_units (const char *cp);
128 extern long* find_pid_by_name( char* pidName);
129 extern char *find_real_root_device_name(const char* name);
130 extern char *get_line_from_file(FILE *file);
131 extern void print_file(FILE *file);
132 extern int copyfd(int fd1, int fd2);
133 extern int print_file_by_name(char *filename);
134 extern char process_escape_sequence(const char **ptr);
135 extern char *get_last_path_component(char *path);
136 extern FILE *wfopen(const char *path, const char *mode);
137 extern FILE *xfopen(const char *path, const char *mode);
138 extern void chomp(char *s);
139 extern void trim(char *s);
140 extern struct BB_applet *find_applet_by_name(const char *name);
141 void run_applet_by_name(const char *name, int argc, char **argv);
144 extern void *xmalloc (size_t size);
145 extern void *xrealloc(void *old, size_t size);
146 extern void *xcalloc(size_t nmemb, size_t size);
147 extern char *xstrdup (const char *s);
149 extern char *xstrndup (const char *s, int n);
150 extern char * safe_strncpy(char *dst, const char *src, size_t size);
157 extern unsigned long parse_number(const char *numstr,
158 const struct suffix_mult *suffixes);
161 /* These parse entries in /etc/passwd and /etc/group. This is desirable
162 * for BusyBox since we want to avoid using the glibc NSS stuff, which
163 * increases target size and is often not needed embedded systems. */
164 extern long my_getpwnam(const char *name);
165 extern long my_getgrnam(const char *name);
166 extern void my_getpwuid(char *name, long uid);
167 extern void my_getgrgid(char *group, long gid);
168 extern long my_getpwnamegid(const char *name);
170 extern int device_open(char *device, int mode);
172 extern int del_loop(const char *device);
173 extern int set_loop(const char *device, const char *file, int offset, int *loopro);
174 extern char *find_unused_loop_device (void);
178 extern int vdprintf(int d, const char *format, va_list ap);
181 int nfsmount(const char *spec, const char *node, int *flags,
182 char **extra_opts, char **mount_opts, int running_bg);
184 void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg);
185 void syslog_msg(int facility, int pri, const char *msg);
187 /* Include our own copy of struct sysinfo to avoid binary compatability
188 * problems with Linux 2.4, which changed things. Grumble, grumble. */
190 long uptime; /* Seconds since boot */
191 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
192 unsigned long totalram; /* Total usable main memory size */
193 unsigned long freeram; /* Available memory size */
194 unsigned long sharedram; /* Amount of shared memory */
195 unsigned long bufferram; /* Memory used by buffers */
196 unsigned long totalswap; /* Total swap space size */
197 unsigned long freeswap; /* swap space still available */
198 unsigned short procs; /* Number of current processes */
199 unsigned short pad; /* Padding needed for m68k */
200 unsigned long totalhigh; /* Total high memory size */
201 unsigned long freehigh; /* Available high memory size */
202 unsigned int mem_unit; /* Memory unit size in bytes */
203 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
205 extern int sysinfo (struct sysinfo* info);
209 MEGABYTE = (KILOBYTE*1024),
210 GIGABYTE = (MEGABYTE*1024)
212 const char *make_human_readable_str(unsigned long size, unsigned long block_size, unsigned long display_unit);
214 int ask_confirmation(void);
215 int klogctl(int type, char * b, int len);
217 char *xgetcwd(char *cwd);
218 char *xreadlink(const char *path);
219 char *concat_path_file(const char *path, const char *filename);
220 char *last_char_is(const char *s, int c);
222 extern long arith (const char *startbuf, int *errcode);
224 int read_package_field(const char *package_buffer, char **field_name, char **field_value);
225 char *fgets_str(FILE *file, const char *terminating_string);
227 extern int inflate(FILE *in, FILE *out);
228 extern int unzip(FILE *l_in_file, FILE *l_out_file);
229 extern void gz_close(int gunzip_pid);
230 extern FILE *gz_open(FILE *compressed_file, int *pid);
232 extern struct hostent *xgethostbyname(const char *name);
233 extern struct hostent *xgethostbyname2(const char *name, int af);
234 extern int create_icmp_socket(void);
235 extern int create_icmp6_socket(void);
236 extern int xconnect(const char *host, const char *port);
238 char *dirname (char *path);
240 int make_directory (char *path, long mode, int flags);
242 const char *u_signal_names(const char *str_sig, int *signo, int startnum);
243 char *simplify_path(const char *path);
246 #define CT_UNIX2DOS 1
247 #define CT_DOS2UNIX 2
248 /* extern int convert(char *fn, int ConvType); */
251 FILEUTILS_PRESERVE_STATUS = 1,
252 FILEUTILS_DEREFERENCE = 2,
255 FILEUTILS_INTERACTIVE = 16
258 extern const char *applet_name;
259 extern const char * const full_version;
260 extern const char * const name_too_long;
261 extern const char * const omitting_directory;
262 extern const char * const not_a_directory;
263 extern const char * const memory_exhausted;
264 extern const char * const invalid_date;
265 extern const char * const invalid_option;
266 extern const char * const io_error;
267 extern const char * const dash_dash_help;
268 extern const char * const write_error;
269 extern const char * const too_few_args;
270 extern const char * const name_longer_than_foo;
271 extern const char * const unknown;
272 extern const char * const can_not_create_raw_socket;
273 extern const char * const nologin_file;
274 extern const char * const passwd_file;
275 extern const char * const shadow_file;
276 extern const char * const gshadow_file;
277 extern const char * const group_file;
278 extern const char * const securetty_file;
279 extern const char * const motd_file;
280 extern const char * const issue_file;
281 extern const char * const _path_login;
283 #ifdef CONFIG_FEATURE_DEVFS
284 # define CURRENT_VC "/dev/vc/0"
285 # define VC_1 "/dev/vc/1"
286 # define VC_2 "/dev/vc/2"
287 # define VC_3 "/dev/vc/3"
288 # define VC_4 "/dev/vc/4"
289 # define VC_5 "/dev/vc/5"
290 # define SC_0 "/dev/tts/0"
291 # define SC_1 "/dev/tts/1"
292 # define VC_FORMAT "/dev/vc/%d"
293 # define SC_FORMAT "/dev/tts/%d"
294 # define LOOP_FORMAT "/dev/loop/%d"
296 # define CURRENT_VC "/dev/tty0"
297 # define VC_1 "/dev/tty1"
298 # define VC_2 "/dev/tty2"
299 # define VC_3 "/dev/tty3"
300 # define VC_4 "/dev/tty4"
301 # define VC_5 "/dev/tty5"
302 # define SC_0 "/dev/ttyS0"
303 # define SC_1 "/dev/ttyS1"
304 # define VC_FORMAT "/dev/tty%d"
305 # define SC_FORMAT "/dev/ttyS%d"
306 # define LOOP_FORMAT "/dev/loop%d"
309 /* The following devices are the same on devfs and non-devfs systems. */
310 #define CURRENT_TTY "/dev/tty"
311 #define CONSOLE_DEV "/dev/console"
313 int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
314 void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
315 void reset_ino_dev_hashtable(void);
317 /* Stupid gcc always includes its own builtin strlen()... */
318 extern size_t xstrlen(const char *string);
319 #define strlen(x) xstrlen(x)
321 void bb_asprintf(char **string_ptr, const char *format, ...) __attribute__ ((format (printf, 2, 3)));
325 extern void change_identity ( const struct passwd *pw );
326 extern void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args );
327 extern int restricted_shell ( const char *shell );
328 extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw );
329 extern int correct_password ( const struct passwd *pw );
330 extern char *pw_encrypt(const char *clear, const char *salt);
331 extern struct spwd *pwd_to_spwd(const struct passwd *pw);
332 extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
334 #endif /* __LIBCONFIG_H__ */