1 /* vi: set sw=4 ts=4: */
3 * Busybox main internal header file
5 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
6 * Permission has been granted to redistribute this code under the GPL.
8 * Licensed under the GPL version 2, see the file LICENSE in this tarball.
10 #ifndef __LIBBUSYBOX_H__
11 #define __LIBBUSYBOX_H__ 1
28 #include <sys/ioctl.h>
30 #include <sys/socket.h>
32 #include <sys/statfs.h>
34 #include <sys/types.h>
42 #include <selinux/selinux.h>
43 #include <selinux/context.h>
46 #if ENABLE_LOCALE_SUPPORT
49 #define setlocale(x,y) ((void)0)
54 /* ifdef it out, because it may include <shadow.h> */
55 /* and we may not even _have_ <shadow.h>! */
56 #if ENABLE_FEATURE_SHADOWPASSWDS
60 /* Try to pull in PATH_MAX */
62 #include <sys/param.h>
67 /* Tested to work correctly (IIRC :]) */
68 #define MAXINT(T) (T)( \
71 : (T)~((T)1 << (sizeof(T)*8-1)) \
74 #define MININT(T) (T)( \
77 : ((T)1 << (sizeof(T)*8-1)) \
80 /* Large file support */
81 /* Note that CONFIG_LFS forces bbox to be built with all common ops
82 * (stat, lseek etc) mapped to "largefile" variants by libc.
83 * Practically it means that open() automatically has O_LARGEFILE added
84 * and all filesize/file_offset parameters and struct members are "large"
85 * (in today's world - signed 64bit). For full support of large files,
86 * we need a few helper #defines (below) and careful use of off_t
87 * instead of int/ssize_t. No lseek64(), O_LARGEFILE etc necessary */
89 /* CONFIG_LFS is on */
90 # if ULONG_MAX > 0xffffffff
91 /* "long" is long enough on this system */
92 # define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
93 /* usage: sz = BB_STRTOOFF(s, NULL, 10); if (errno || sz < 0) die(); */
94 # define BB_STRTOOFF bb_strtoul
95 # define STRTOOFF strtoul
96 /* usage: printf("size: %"OFF_FMT"d (%"OFF_FMT"x)\n", sz, sz); */
99 /* "long" is too short, need "long long" */
100 # define XATOOFF(a) xatoull_range(a, 0, LLONG_MAX)
101 # define BB_STRTOOFF bb_strtoull
102 # define STRTOOFF strtoull
103 # define OFF_FMT "ll"
106 /* CONFIG_LFS is off */
107 # if UINT_MAX == 0xffffffff
108 /* While sizeof(off_t) == sizeof(int), off_t is typedef'ed to long anyway.
109 * gcc will throw warnings on printf("%d", off_t). Crap... */
110 # define XATOOFF(a) xatoi_u(a)
111 # define BB_STRTOOFF bb_strtou
112 # define STRTOOFF strtol
115 # define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
116 # define BB_STRTOOFF bb_strtoul
117 # define STRTOOFF strtol
121 /* scary. better ideas? (but do *test* them first!) */
122 #define OFF_T_MAX ((off_t)~((off_t)1 << (sizeof(off_t)*8-1)))
124 /* This structure defines protocol families and their handlers. */
130 char *(*print) (unsigned char *);
131 const char *(*sprint) (struct sockaddr *, int numeric);
132 int (*input) (/*int type,*/ const char *bufp, struct sockaddr *);
133 void (*herror) (char *text);
134 int (*rprint) (int options);
135 int (*rinput) (int typ, int ext, char **argv);
138 int (*getmask) (char *src, struct sockaddr * mask, char *name);
141 /* This structure defines hardware protocols and their handlers. */
147 char *(*print) (unsigned char *);
148 int (*input) (const char *, struct sockaddr *);
149 int (*activate) (int fd);
150 int suppress_null_addr;
153 /* Some useful definitions */
155 #define FALSE ((int) 0)
157 #define TRUE ((int) 1)
159 #define SKIP ((int) 2)
162 #define MTAB_GETMOUNTPT '1'
163 #define MTAB_GETDEVICE '2'
165 #define BUF_SIZE 8192
166 #define EXPAND_ALLOC 1024
168 /* Macros for min/max. */
170 #define MIN(a,b) (((a)<(b))?(a):(b))
174 #define MAX(a,b) (((a)>(b))?(a):(b))
177 /* buffer allocation schemes */
178 #if ENABLE_FEATURE_BUFFERS_GO_ON_STACK
179 #define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len]
180 #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
181 #define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
183 #if ENABLE_FEATURE_BUFFERS_GO_IN_BSS
184 #define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len]
185 #define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
186 #define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
188 #define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer=xmalloc(len)
189 #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len)
190 #define RELEASE_CONFIG_BUFFER(buffer) free (buffer)
195 #if defined(__GLIBC__) && __GLIBC__ < 2
196 int vdprintf(int d, const char *format, va_list ap);
198 // This is declared here rather than #including <libgen.h> in order to avoid
199 // confusing the two versions of basename. See the dirname/basename man page
201 char *dirname(char *path);
202 /* Include our own copy of struct sysinfo to avoid binary compatibility
203 * problems with Linux 2.4, which changed things. Grumble, grumble. */
205 long uptime; /* Seconds since boot */
206 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
207 unsigned long totalram; /* Total usable main memory size */
208 unsigned long freeram; /* Available memory size */
209 unsigned long sharedram; /* Amount of shared memory */
210 unsigned long bufferram; /* Memory used by buffers */
211 unsigned long totalswap; /* Total swap space size */
212 unsigned long freeswap; /* swap space still available */
213 unsigned short procs; /* Number of current processes */
214 unsigned short pad; /* Padding needed for m68k */
215 unsigned long totalhigh; /* Total high memory size */
216 unsigned long freehigh; /* Available high memory size */
217 unsigned int mem_unit; /* Memory unit size in bytes */
218 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
220 extern int sysinfo(struct sysinfo* info);
223 extern void chomp(char *s);
224 extern void trim(char *s);
225 extern char *skip_whitespace(const char *);
226 extern char *skip_non_whitespace(const char *);
228 //TODO: supply a pointer to char[11] buffer (avoid statics)?
229 extern const char *bb_mode_string(mode_t mode);
230 extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
231 extern int remove_file(const char *path, int flags);
232 extern int copy_file(const char *source, const char *dest, int flags);
233 extern int recursive_action(const char *fileName, int recurse,
234 int followLinks, int depthFirst,
235 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
236 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
237 void* userData, int depth);
238 extern int device_open(const char *device, int mode);
239 extern int get_console_fd(void);
240 extern char *find_block_device(const char *path);
241 /* bb_copyfd_XX print read/write errors and return -1 if they occur */
242 extern off_t bb_copyfd_eof(int fd1, int fd2);
243 extern off_t bb_copyfd_size(int fd1, int fd2, off_t size);
244 extern void bb_copyfd_exact_size(int fd1, int fd2, off_t size);
245 /* "short" copy can be detected by return value < size */
246 /* this helper yells "short read!" if param is not -1 */
247 extern void complain_copyfd_and_die(off_t sz) ATTRIBUTE_NORETURN;
248 extern char bb_process_escape_sequence(const char **ptr);
249 /* TODO: sometimes modifies its parameter, which
250 * makes it rather inconvenient at times: */
251 extern char *bb_get_last_path_component(char *path);
252 extern int ndelay_on(int fd);
253 extern int ndelay_off(int fd);
256 extern DIR *xopendir(const char *path);
257 extern DIR *warn_opendir(const char *path);
259 char *xrealloc_getcwd_or_warn(char *cwd);
260 char *xmalloc_readlink_or_warn(const char *path);
261 char *xmalloc_realpath(const char *path);
262 extern void xstat(const char *filename, struct stat *buf);
263 extern pid_t spawn(char **argv);
264 extern pid_t xspawn(char **argv);
265 extern int wait4pid(int pid);
266 extern void xsetgid(gid_t gid);
267 extern void xsetuid(uid_t uid);
268 extern void xdaemon(int nochdir, int noclose);
269 /* More clever/thorough xdaemon */
270 extern void bb_sanitize_stdio_maybe_daemonize(int daemonize);
271 extern void bb_sanitize_stdio(void);
272 /* NB: be careful: dont open syslog/network sockets before bb_daemonize */
273 extern void bb_daemonize(void);
274 extern void xchdir(const char *path);
275 extern void xsetenv(const char *key, const char *value);
276 extern int xopen(const char *pathname, int flags);
277 extern int xopen3(const char *pathname, int flags, int mode);
278 extern off_t xlseek(int fd, off_t offset, int whence);
279 extern off_t fdlength(int fd);
282 int xsocket(int domain, int type, int protocol);
283 void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
284 void xlisten(int s, int backlog);
285 void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen);
286 int setsockopt_reuseaddr(int fd);
287 int setsockopt_broadcast(int fd);
288 /* NB: returns port in host byte order */
289 unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port);
290 typedef struct len_and_sockaddr {
294 struct sockaddr_in sin;
295 #if ENABLE_FEATURE_IPV6
296 struct sockaddr_in6 sin6;
300 /* Create stream socket, and allocated suitable lsa
301 * (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6)) */
302 int xsocket_stream(len_and_sockaddr **lsap);
303 /* Create server TCP socket bound to bindaddr:port. bindaddr can be NULL,
304 * numeric IP ("N.N.N.N") or numeric IPv6 address,
305 * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
306 * If there is no suffix, port argument is used */
307 int create_and_bind_stream_or_die(const char *bindaddr, int port);
308 /* Create client TCP socket connected to peer:port. Peer cannot be NULL.
309 * Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname,
310 * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
311 * If there is no suffix, port argument is used */
312 int create_and_connect_stream_or_die(const char *peer, int port);
313 /* Connect to peer identified by lsa */
314 int xconnect_stream(const len_and_sockaddr *lsa);
315 /* Return malloc'ed len_and_sockaddr with socket address of host:port
316 * Currently will return IPv4 or IPv6 sockaddrs only
317 * (depending on host), but in theory nothing prevents e.g.
318 * UNIX socket address being returned, IPX sockaddr etc...
319 * On error does bb_error_msg and returns NULL */
320 len_and_sockaddr* host2sockaddr(const char *host, int port);
321 /* Version which dies on error */
322 len_and_sockaddr* xhost2sockaddr(const char *host, int port);
323 len_and_sockaddr* xdotted2sockaddr(const char *host, int port);
324 #if ENABLE_FEATURE_IPV6
325 /* Same, useful if you want to force family (e.g. IPv6) */
326 len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af);
327 len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af);
329 /* [we evaluate af: think about "host_and_af2sockaddr(..., af++)"] */
330 #define host_and_af2sockaddr(host, port, af) ((void)(af), host2sockaddr((host), (port)))
331 #define xhost_and_af2sockaddr(host, port, af) ((void)(af), xhost2sockaddr((host), (port)))
333 /* Assign sin[6]_port member if the socket is of corresponding type,
334 * otherwise no-op. Useful for ftp.
335 * NB: does NOT do htons() internally, just direct assignment. */
336 void set_nport(len_and_sockaddr *lsa, unsigned port);
337 /* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */
338 int get_nport(const len_and_sockaddr *lsa);
339 /* Reverse DNS. Returns NULL on failure. */
340 char* xmalloc_sockaddr2host(const struct sockaddr *sa, socklen_t salen);
341 /* This one doesn't append :PORTNUM */
342 char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa, socklen_t salen);
343 /* This one also doesn't fall back to dotted IP (returns NULL) */
344 char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa, socklen_t salen);
345 /* inet_[ap]ton on steroids */
346 char* xmalloc_sockaddr2dotted(const struct sockaddr *sa, socklen_t salen);
347 char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa, socklen_t salen);
348 // "old" (ipv4 only) API
349 // users: traceroute.c hostname.c
350 struct hostent *xgethostbyname(const char *name);
351 // Also inetd.c and inetd.c are using gethostbyname(),
352 // + inet_common.c has additional IPv4-only stuff
355 extern char *xstrdup(const char *s);
356 extern char *xstrndup(const char *s, int n);
357 extern char *safe_strncpy(char *dst, const char *src, size_t size);
358 extern char *xasprintf(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
359 // gcc-4.1.1 still isn't good enough at optimizing it
360 // (+200 bytes compared to macro)
361 //static ATTRIBUTE_ALWAYS_INLINE
362 //int LONE_DASH(const char *s) { return s[0] == '-' && !s[1]; }
363 //static ATTRIBUTE_ALWAYS_INLINE
364 //int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; }
365 #define LONE_DASH(s) ((s)[0] == '-' && !(s)[1])
366 #define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
367 #define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1])
368 #define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1])
370 /* dmalloc will redefine these to it's own implementation. It is safe
371 * to have the prototypes here unconditionally. */
372 extern void *xmalloc(size_t size);
373 extern void *xrealloc(void *old, size_t size);
374 extern void *xzalloc(size_t size);
376 extern ssize_t safe_read(int fd, void *buf, size_t count);
377 extern ssize_t full_read(int fd, void *buf, size_t count);
378 extern void xread(int fd, void *buf, size_t count);
379 extern unsigned char xread_char(int fd);
380 extern char *reads(int fd, char *buf, size_t count);
381 extern ssize_t read_close(int fd, void *buf, size_t count);
382 extern ssize_t open_read_close(const char *filename, void *buf, size_t count);
383 extern void *xmalloc_open_read_close(const char *filename, size_t *sizep);
385 extern ssize_t safe_write(int fd, const void *buf, size_t count);
386 extern ssize_t full_write(int fd, const void *buf, size_t count);
387 extern void xwrite(int fd, const void *buf, size_t count);
389 /* Reads and prints to stdout till eof, then closes FILE. Exits on error: */
390 extern void xprint_and_close_file(FILE *file);
391 extern char *xmalloc_fgets(FILE *file);
392 /* Read up to (and including) TERMINATING_STRING: */
393 extern char *xmalloc_fgets_str(FILE *file, const char *terminating_string);
394 /* Chops off '\n' from the end, unlike fgets: */
395 extern char *xmalloc_getline(FILE *file);
396 extern char *bb_get_chunk_from_file(FILE *file, int *end);
397 extern void die_if_ferror(FILE *file, const char *msg);
398 extern void die_if_ferror_stdout(void);
399 extern void xfflush_stdout(void);
400 extern void fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN;
401 extern int fclose_if_not_stdin(FILE *file);
402 extern FILE *xfopen(const char *filename, const char *mode);
403 /* Prints warning to stderr and returns NULL on failure: */
404 extern FILE *fopen_or_warn(const char *filename, const char *mode);
405 /* "Opens" stdin if filename is special, else just opens file: */
406 extern FILE *fopen_or_warn_stdin(const char *filename);
409 extern void utoa_to_buf(unsigned n, char *buf, unsigned buflen);
410 extern char *utoa(unsigned n);
411 extern void itoa_to_buf(int n, char *buf, unsigned buflen);
412 extern char *itoa(int n);
413 extern void smart_ulltoa5(unsigned long long ul, char buf[5]);
414 /* Put a string of hex bytes (ala "1b"), return advanced pointer */
415 extern char *bin2hex(char *buf, const char *cp, int count);
423 /* Using xatoi() instead of naive atoi() is not always convenient -
424 * in many places people want *non-negative* values, but store them
425 * in signed int. Therefore we need this one:
426 * dies if input is not in [0, INT_MAX] range. Also will reject '-0' etc */
427 int xatoi_u(const char *numstr);
428 /* Useful for reading port numbers */
429 uint16_t xatou16(const char *numstr);
432 /* These parse entries in /etc/passwd and /etc/group. This is desirable
433 * for BusyBox since we want to avoid using the glibc NSS stuff, which
434 * increases target size and is often not needed on embedded systems. */
435 long xuname2uid(const char *name);
436 long xgroup2gid(const char *name);
437 /* wrapper: allows string to contain numeric uid or gid */
438 unsigned long get_ug_id(const char *s, long (*xname2id)(const char *));
439 /* from chpst. Does not die, returns 0 on failure */
444 /* always sets uid and gid */
445 int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok);
446 /* chown-like handling of "user[:[group]" */
447 void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group);
449 /*extern char *bb_getug(char *buffer, char *idname, long id, int bufsize, char prefix);*/
450 char *bb_getpwuid(char *name, long uid, int bufsize);
451 char *bb_getgrgid(char *group, long gid, int bufsize);
452 /* versions which cache results (useful for ps, ls etc) */
453 const char* get_cached_username(uid_t uid);
454 const char* get_cached_groupname(gid_t gid);
455 void clear_username_cache(void);
456 /* internally usernames are saved in fixed-sized char[] buffers */
457 enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
460 enum { BB_GETOPT_ERROR = 0x80000000 };
461 extern const char *opt_complementary;
462 #if ENABLE_GETOPT_LONG
463 extern const struct option *applet_long_options;
465 extern uint32_t option_mask32;
466 extern uint32_t getopt32(int argc, char **argv, const char *applet_opts, ...);
469 typedef struct llist_s {
471 struct llist_s *link;
473 extern void llist_add_to(llist_t **old_head, void *data);
474 extern void llist_add_to_end(llist_t **list_head, void *data);
475 extern void *llist_pop(llist_t **elm);
476 extern void llist_unlink(llist_t **head, llist_t *elm);
477 extern void llist_free(llist_t *elm, void (*freeit)(void *data));
478 extern llist_t* llist_rev(llist_t *list);
482 LOGMODE_STDIO = 1<<0,
483 LOGMODE_SYSLOG = 1<<1,
484 LOGMODE_BOTH = LOGMODE_SYSLOG + LOGMODE_STDIO,
486 extern const char *msg_eol;
488 extern int die_sleep;
489 extern int xfunc_error_retval;
490 extern void sleep_and_die(void) ATTRIBUTE_NORETURN;
491 extern void bb_show_usage(void) ATTRIBUTE_NORETURN ATTRIBUTE_EXTERNALLY_VISIBLE;
492 extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
493 extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
494 extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
495 extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
496 extern void bb_vherror_msg(const char *s, va_list p);
497 extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
498 extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
499 extern void bb_perror_nomsg_and_die(void) ATTRIBUTE_NORETURN;
500 extern void bb_perror_nomsg(void);
501 extern void bb_info_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
502 /* These are used internally -- you shouldn't need to use them */
503 extern void bb_verror_msg(const char *s, va_list p, const char *strerr);
504 extern void bb_vperror_msg(const char *s, va_list p);
505 extern void bb_vinfo_msg(const char *s, va_list p);
508 /* applets which are useful from another applets */
509 int bb_cat(char** argv);
510 int bb_echo(char** argv);
511 int bb_test(int argc, char** argv);
513 void bb_displayroutes(int noresolve, int netstatfmt);
515 int chown_main(int argc, char **argv);
517 int gunzip_main(int argc, char **argv);
519 int bbunpack(char **argv,
520 char* (*make_new_name)(char *filename),
521 USE_DESKTOP(long long) int (*unpacker)(void)
526 int create_icmp_socket(void);
527 int create_icmp6_socket(void);
529 extern int interface_opt_a;
530 int display_interfaces(char *ifname);
531 const struct aftype *get_aftype(const char *name);
532 const struct hwtype *get_hwtype(const char *name);
533 const struct hwtype *get_hwntype(int type);
536 #ifndef BUILD_INDIVIDUAL
537 extern struct BB_applet *find_applet_by_name(const char *name);
538 extern void run_applet_by_name(const char *name, int argc, char **argv);
541 extern struct mntent *find_mount_point(const char *name, const char *table);
542 extern void erase_mtab(const char * name);
543 extern unsigned int tty_baud_to_value(speed_t speed);
544 extern speed_t tty_value_to_baud(unsigned int value);
545 extern void bb_warn_ignoring_args(int n);
547 extern int get_linux_version_code(void);
549 extern char *query_loop(const char *device);
550 extern int del_loop(const char *device);
551 extern int set_loop(char **device, const char *file, unsigned long long offset);
554 //TODO: provide pointer to buf (avoid statics)?
555 const char *make_human_readable_str(unsigned long long size,
556 unsigned long block_size, unsigned long display_unit);
558 //TODO: pass buf pointer or return allocated buf (avoid statics)?
559 char *bb_askpass(int timeout, const char * prompt);
560 int bb_ask_confirmation(void);
561 int klogctl(int type, char * b, int len);
563 extern int bb_parse_mode(const char* s, mode_t* theMode);
565 char *concat_path_file(const char *path, const char *filename);
566 char *concat_subpath_file(const char *path, const char *filename);
567 char *last_char_is(const char *s, int c);
569 int execable_file(const char *name);
570 char *find_execable(const char *filename);
571 int exists_execable(const char *filename);
573 #if ENABLE_FEATURE_EXEC_PREFER_APPLETS
574 int bb_execvp(const char *file, char *const argv[]);
575 #define BB_EXECVP(prog,cmd) bb_execvp(prog,cmd)
576 #define BB_EXECLP(prog,cmd,...) \
577 execlp((find_applet_by_name(prog)) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
580 #define BB_EXECVP(prog,cmd) execvp(prog,cmd)
581 #define BB_EXECLP(prog,cmd,...) execlp(prog,cmd, __VA_ARGS__)
584 USE_DESKTOP(long long) int uncompress(int fd_in, int fd_out);
585 int inflate(int in, int out);
588 int bb_make_directory(char *path, long mode, int flags);
590 int get_signum(const char *name);
591 const char *get_signame(int number);
593 char *bb_simplify_path(const char *path);
596 extern void bb_do_delay(int seconds);
597 extern void change_identity(const struct passwd *pw);
598 extern const char *change_identity_e2str(const struct passwd *pw);
599 extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args);
601 extern void renew_current_security_context(void);
602 extern void set_current_security_context(security_context_t sid);
603 extern context_t set_security_context_component(security_context_t cur_context,
604 char *user, char *role, char *type, char *range);
605 extern void setfscreatecon_or_die(security_context_t scontext);
607 extern void selinux_or_die(void);
608 extern int restricted_shell(const char *shell);
609 extern void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw);
610 extern int correct_password(const struct passwd *pw);
611 extern char *pw_encrypt(const char *clear, const char *salt);
612 extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
613 extern int index_in_str_array(const char * const string_array[], const char *key);
614 extern int index_in_substr_array(const char * const string_array[], const char *key);
615 extern void print_login_issue(const char *issue_file, const char *tty);
616 extern void print_login_prompt(void);
618 extern void vfork_daemon(int nochdir, int noclose);
619 extern void vfork_daemon_rexec(int nochdir, int noclose,
620 int argc, char **argv, char *foreground_opt);
622 extern int get_terminal_width_height(const int fd, int *width, int *height);
624 char *is_in_ino_dev_hashtable(const struct stat *statbuf);
625 void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
626 void reset_ino_dev_hashtable(void);
628 /* At least glibc has horrendously large inline for this, so wrap it */
629 extern unsigned long long bb_makedev(unsigned int major, unsigned int minor);
631 #define makedev(a,b) bb_makedev(a,b)
635 #if ENABLE_FEATURE_EDITING
636 /* It's NOT just ENABLEd or disabled. It's a number: */
637 #ifdef CONFIG_FEATURE_EDITING_HISTORY
638 #define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
640 #define MAX_HISTORY 0
642 struct line_input_t {
644 const char *path_lookup;
648 USE_FEATURE_EDITING_SAVEHISTORY(const char *hist_file;)
649 char *history[MAX_HISTORY + 1];
653 DO_HISTORY = 1 * (MAX_HISTORY > 0),
654 SAVE_HISTORY = 2 * (MAX_HISTORY > 0) * ENABLE_FEATURE_EDITING_SAVEHISTORY,
655 TAB_COMPLETION = 4 * ENABLE_FEATURE_TAB_COMPLETION,
656 USERNAME_COMPLETION = 8 * ENABLE_FEATURE_USERNAME_COMPLETION,
657 VI_MODE = 0x10 * ENABLE_FEATURE_EDITING_VI,
658 WITH_PATH_LOOKUP = 0x20,
659 FOR_SHELL = DO_HISTORY | SAVE_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION,
661 typedef struct line_input_t line_input_t;
662 line_input_t *new_line_input_t(int flags);
663 int read_line_input(const char* prompt, char* command, int maxsize, line_input_t *state);
665 int read_line_input(const char* prompt, char* command, int maxsize);
666 #define read_line_input(prompt, command, maxsize, state) \
667 read_line_input(prompt, command, maxsize)
673 enum { COMM_LEN = TASK_COMM_LEN };
675 /* synchronize with sizeof(task_struct.comm) in /usr/include/linux/sched.h */
676 enum { COMM_LEN = 16 };
681 /* Fields are set to 0/NULL if failed to determine (or not requested) */
684 unsigned long stime, utime;
691 /* basename of executable file in call to exec(2), size from */
692 /* sizeof(task_struct.comm) in /usr/include/linux/sched.h */
695 // user/group? - use passwd/group parsing functions
699 PSSCAN_PPID = 1 << 1,
700 PSSCAN_PGID = 1 << 2,
702 PSSCAN_UIDGID = 1 << 4,
703 PSSCAN_COMM = 1 << 5,
705 PSSCAN_STATE = 1 << 7,
707 PSSCAN_STIME = 1 << 9,
708 PSSCAN_UTIME = 1 << 10,
709 /* These are all retrieved from proc/NN/stat in one go: */
710 PSSCAN_STAT = PSSCAN_PPID | PSSCAN_PGID | PSSCAN_SID
711 | PSSCAN_COMM | PSSCAN_STATE
712 | PSSCAN_VSZ | PSSCAN_STIME | PSSCAN_UTIME,
714 procps_status_t* alloc_procps_scan(int flags);
715 void free_procps_scan(procps_status_t* sp);
716 procps_status_t* procps_scan(procps_status_t* sp, int flags);
717 pid_t *find_pid_by_name(const char* procName);
718 pid_t *pidlist_reverse(pid_t *pidList);
721 extern const char bb_uuenc_tbl_base64[];
722 extern const char bb_uuenc_tbl_std[];
723 void bb_uuencode(const unsigned char *s, char *store, const int length, const char *tbl);
725 typedef struct sha1_ctx_t {
730 void sha1_begin(sha1_ctx_t *ctx);
731 void sha1_hash(const void *data, size_t length, sha1_ctx_t *ctx);
732 void *sha1_end(void *resbuf, sha1_ctx_t *ctx);
734 typedef struct md5_ctx_t {
743 void md5_begin(md5_ctx_t *ctx);
744 void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
745 void *md5_end(void *resbuf, md5_ctx_t *ctx);
747 uint32_t *crc32_filltable(int endian);
750 enum { /* DO NOT CHANGE THESE VALUES! cp.c, mv.c, install.c depend on them. */
751 FILEUTILS_PRESERVE_STATUS = 1,
752 FILEUTILS_DEREFERENCE = 2,
755 FILEUTILS_INTERACTIVE = 0x10,
756 FILEUTILS_MAKE_HARDLINK = 0x20,
757 FILEUTILS_MAKE_SOFTLINK = 0x40,
759 FILEUTILS_PRESERVE_SECURITY_CONTEXT = 0x80,
760 FILEUTILS_SET_SECURITY_CONTEXT = 0x100
764 #define FILEUTILS_CP_OPTSTR "pdRfils" USE_SELINUX("c")
765 extern const char *applet_name;
766 extern const char BB_BANNER[];
768 extern const char bb_msg_full_version[];
769 extern const char bb_msg_memory_exhausted[];
770 extern const char bb_msg_invalid_date[];
771 extern const char bb_msg_read_error[];
772 extern const char bb_msg_write_error[];
773 extern const char bb_msg_unknown[];
774 extern const char bb_msg_can_not_create_raw_socket[];
775 extern const char bb_msg_perm_denied_are_you_root[];
776 extern const char bb_msg_requires_arg[];
777 extern const char bb_msg_invalid_arg[];
778 extern const char bb_msg_standard_input[];
779 extern const char bb_msg_standard_output[];
781 extern const char bb_str_default[];
782 /* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */
783 extern const char bb_hexdigits_upcase[];
785 extern const char bb_path_mtab_file[];
786 extern const char bb_path_nologin_file[];
787 extern const char bb_path_passwd_file[];
788 extern const char bb_path_shadow_file[];
789 extern const char bb_path_gshadow_file[];
790 extern const char bb_path_group_file[];
791 extern const char bb_path_securetty_file[];
792 extern const char bb_path_motd_file[];
793 extern const char bb_path_wtmp_file[];
794 extern const char bb_dev_null[];
796 extern const int const_int_0;
797 extern const int const_int_1;
802 extern char bb_common_bufsiz1[BUFSIZ+1];
803 /* This struct is deliberately not defined. */
804 /* See docs/keep_data_small.txt */
806 /* Magic prevents this from going into rodata */
807 /* If you want to assign a value, use PTR_TO_GLOBALS = xxx */
808 extern struct globals *const ptr_to_globals;
809 #define PTR_TO_GLOBALS (*(struct globals**)&ptr_to_globals)
811 /* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don't use it,
812 * use bb_default_login_shell and following defines.
813 * If you change LIBBB_DEFAULT_LOGIN_SHELL,
814 * don't forget to change increment constant. */
815 #define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh"
816 extern const char bb_default_login_shell[];
818 #define DEFAULT_SHELL (bb_default_login_shell+1)
820 #define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
823 #if ENABLE_FEATURE_DEVFS
824 # define CURRENT_VC "/dev/vc/0"
825 # define VC_1 "/dev/vc/1"
826 # define VC_2 "/dev/vc/2"
827 # define VC_3 "/dev/vc/3"
828 # define VC_4 "/dev/vc/4"
829 # define VC_5 "/dev/vc/5"
830 #if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
831 /* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their
832 respective serial ports .. as such, we can't use the common device paths for
834 # define SC_0 "/dev/ttsc/0"
835 # define SC_1 "/dev/ttsc/1"
836 # define SC_FORMAT "/dev/ttsc/%d"
838 # define SC_0 "/dev/tts/0"
839 # define SC_1 "/dev/tts/1"
840 # define SC_FORMAT "/dev/tts/%d"
842 # define VC_FORMAT "/dev/vc/%d"
843 # define LOOP_FORMAT "/dev/loop/%d"
844 # define LOOP_NAME "/dev/loop/"
845 # define FB_0 "/dev/fb/0"
847 # define CURRENT_VC "/dev/tty0"
848 # define VC_1 "/dev/tty1"
849 # define VC_2 "/dev/tty2"
850 # define VC_3 "/dev/tty3"
851 # define VC_4 "/dev/tty4"
852 # define VC_5 "/dev/tty5"
853 #if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
854 # define SC_0 "/dev/ttySC0"
855 # define SC_1 "/dev/ttySC1"
856 # define SC_FORMAT "/dev/ttySC%d"
858 # define SC_0 "/dev/ttyS0"
859 # define SC_1 "/dev/ttyS1"
860 # define SC_FORMAT "/dev/ttyS%d"
862 # define VC_FORMAT "/dev/tty%d"
863 # define LOOP_FORMAT "/dev/loop%d"
864 # define LOOP_NAME "/dev/loop"
865 # define FB_0 "/dev/fb0"
868 /* The following devices are the same on devfs and non-devfs systems. */
869 #define CURRENT_TTY "/dev/tty"
870 #define DEV_CONSOLE "/dev/console"
874 /* Stop system and switch power off if possible. */
875 #define RB_POWER_OFF 0x4321fedc
878 /* Make sure we call functions instead of macros. */
892 /* This one is more efficient - we save ~400 bytes */
894 #define isdigit(a) ((unsigned)((a) - '0') <= 9)
901 #endif /* __LIBBUSYBOX_H__ */