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 */
58 typedef unsigned int socklen_t;
59 /* libc5 doesn't implement BSD 4.4 daemon() */
60 extern int daemon (int nochdir, int noclose);
61 /* libc5 doesn't implement strtok_r */
62 char *strtok_r(char *s, const char *delim, char **ptrptr);
65 /* Some useful definitions */
66 #define FALSE ((int) 0)
67 #define TRUE ((int) 1)
68 #define SKIP ((int) 2)
71 #define MTAB_GETMOUNTPT '1'
72 #define MTAB_GETDEVICE '2'
75 #define EXPAND_ALLOC 1024
77 /* Macros for min/max. */
79 #define MIN(a,b) (((a)<(b))?(a):(b))
83 #define MAX(a,b) (((a)>(b))?(a):(b))
86 extern void show_usage(void) __attribute__ ((noreturn));
87 extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
88 extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
89 extern void perror_msg(const char *s, ...);
90 extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
91 extern void vherror_msg(const char *s, va_list p);
92 extern void herror_msg(const char *s, ...);
93 extern void herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
95 /* These two are used internally -- you shouldn't need to use them */
96 extern void verror_msg(const char *s, va_list p);
97 extern void vperror_msg(const char *s, va_list p);
99 const char *mode_string(int mode);
100 const char *time_string(time_t timeVal);
101 int is_directory(const char *name, int followLinks, struct stat *statBuf);
102 int isDevice(const char *name);
104 int remove_file(const char *path, int flags);
105 int copy_file(const char *source, const char *dest, int flags);
106 int copy_file_chunk(FILE *src_file, FILE *dst_file, unsigned long long chunksize);
107 char *buildName(const char *dirName, const char *fileName);
108 int makeString(int argc, const char **argv, char *buf, int bufLen);
109 char *getChunk(int size);
110 char *chunkstrdup(const char *str);
111 void freeChunks(void);
112 ssize_t safe_read(int fd, void *buf, size_t count);
113 int full_write(int fd, const char *buf, int len);
114 int full_read(int fd, char *buf, int len);
115 int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst,
116 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
117 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
120 extern int parse_mode( const char* s, mode_t* theMode);
122 extern int get_kernel_revision(void);
124 extern int get_console_fd(void);
125 extern struct mntent *find_mount_point(const char *name, const char *table);
126 extern void write_mtab(char* blockDevice, char* directory,
127 char* filesystemType, long flags, char* string_flags);
128 extern void erase_mtab(const char * name);
129 extern long atoi_w_units (const char *cp);
130 extern long* find_pid_by_name( const char* pidName);
131 extern char *find_real_root_device_name(const char* name);
132 extern char *get_line_from_file(FILE *file);
133 extern void print_file(FILE *file);
134 extern int copyfd(int fd1, int fd2);
135 extern int print_file_by_name(char *filename);
136 extern char process_escape_sequence(const char **ptr);
137 extern char *get_last_path_component(char *path);
138 extern FILE *wfopen(const char *path, const char *mode);
139 extern FILE *xfopen(const char *path, const char *mode);
140 extern void chomp(char *s);
141 extern void trim(char *s);
142 extern struct BB_applet *find_applet_by_name(const char *name);
143 void run_applet_by_name(const char *name, int argc, char **argv);
146 extern void *xmalloc (size_t size);
147 extern void *xrealloc(void *old, size_t size);
148 extern void *xcalloc(size_t nmemb, size_t size);
149 extern char *xstrdup (const char *s);
151 extern char *xstrndup (const char *s, int n);
152 extern char * safe_strncpy(char *dst, const char *src, size_t size);
159 extern unsigned long parse_number(const char *numstr,
160 const struct suffix_mult *suffixes);
163 /* These parse entries in /etc/passwd and /etc/group. This is desirable
164 * for BusyBox since we want to avoid using the glibc NSS stuff, which
165 * increases target size and is often not needed embedded systems. */
166 extern long my_getpwnam(const char *name);
167 extern long my_getgrnam(const char *name);
168 extern char * my_getpwuid(char *name, long uid);
169 extern char * my_getgrgid(char *group, long gid);
170 extern long my_getpwnamegid(const char *name);
172 extern int device_open(char *device, int mode);
174 extern int del_loop(const char *device);
175 extern int set_loop(const char *device, const char *file, int offset, int *loopro);
176 extern char *find_unused_loop_device (void);
180 extern int vdprintf(int d, const char *format, va_list ap);
183 int nfsmount(const char *spec, const char *node, int *flags,
184 char **extra_opts, char **mount_opts, int running_bg);
186 void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg);
187 void syslog_msg(int facility, int pri, const char *msg);
189 /* Include our own copy of struct sysinfo to avoid binary compatability
190 * problems with Linux 2.4, which changed things. Grumble, grumble. */
192 long uptime; /* Seconds since boot */
193 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
194 unsigned long totalram; /* Total usable main memory size */
195 unsigned long freeram; /* Available memory size */
196 unsigned long sharedram; /* Amount of shared memory */
197 unsigned long bufferram; /* Memory used by buffers */
198 unsigned long totalswap; /* Total swap space size */
199 unsigned long freeswap; /* swap space still available */
200 unsigned short procs; /* Number of current processes */
201 unsigned short pad; /* Padding needed for m68k */
202 unsigned long totalhigh; /* Total high memory size */
203 unsigned long freehigh; /* Available high memory size */
204 unsigned int mem_unit; /* Memory unit size in bytes */
205 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
207 extern int sysinfo (struct sysinfo* info);
211 MEGABYTE = (KILOBYTE*1024),
212 GIGABYTE = (MEGABYTE*1024)
214 const char *make_human_readable_str(unsigned long size, unsigned long block_size, unsigned long display_unit);
216 int ask_confirmation(void);
217 int klogctl(int type, char * b, int len);
219 char *xgetcwd(char *cwd);
220 char *xreadlink(const char *path);
221 char *concat_path_file(const char *path, const char *filename);
222 char *last_char_is(const char *s, int c);
224 extern long arith (const char *startbuf, int *errcode);
226 int read_package_field(const char *package_buffer, char **field_name, char **field_value);
227 char *fgets_str(FILE *file, const char *terminating_string);
229 extern int uncompress(int fd_in, int fd_out);
230 extern int inflate(int in, int out);
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 run_parts(char **args, const unsigned char test_mode);
328 extern int restricted_shell ( const char *shell );
329 extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw );
330 extern int correct_password ( const struct passwd *pw );
331 extern char *pw_encrypt(const char *clear, const char *salt);
332 extern struct spwd *pwd_to_spwd(const struct passwd *pw);
333 extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
335 extern int xopen(const char *pathname, int flags);
336 extern ssize_t xread(int fd, void *buf, size_t count);
337 extern void xread_all(int fd, void *buf, size_t count);
338 extern unsigned char xread_char(int fd);
346 #ifdef FEATURE_CPU_USAGE_PERCENTAGE
348 unsigned long stime, utime;
352 /* basename of executable file in call to exec(2),
353 size from kernel headers */
357 extern procps_status_t * procps_scan(int save_user_arg0);
358 extern unsigned short compare_string_array(const char *string_array[], const char *key);
360 #endif /* __LIBCONFIG_H__ */