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
29 /* #include <strings.h> - said to be obsolete */
31 #include <sys/ioctl.h>
33 #include <sys/socket.h>
35 #include <sys/statfs.h>
37 #include <sys/types.h>
45 #include <selinux/selinux.h>
46 #include <selinux/context.h>
49 #if ENABLE_LOCALE_SUPPORT
52 #define setlocale(x,y) ((void)0)
57 /* ifdef it out, because it may include <shadow.h> */
58 /* and we may not even _have_ <shadow.h>! */
59 #if ENABLE_FEATURE_SHADOWPASSWDS
63 /* Try to pull in PATH_MAX */
65 #include <sys/param.h>
70 /* Tested to work correctly (IIRC :]) */
71 #define MAXINT(T) (T)( \
74 : (T)~((T)1 << (sizeof(T)*8-1)) \
77 #define MININT(T) (T)( \
80 : ((T)1 << (sizeof(T)*8-1)) \
83 /* Large file support */
84 /* Note that CONFIG_LFS forces bbox to be built with all common ops
85 * (stat, lseek etc) mapped to "largefile" variants by libc.
86 * Practically it means that open() automatically has O_LARGEFILE added
87 * and all filesize/file_offset parameters and struct members are "large"
88 * (in today's world - signed 64bit). For full support of large files,
89 * we need a few helper #defines (below) and careful use of off_t
90 * instead of int/ssize_t. No lseek64(), O_LARGEFILE etc necessary */
92 /* CONFIG_LFS is on */
93 # if ULONG_MAX > 0xffffffff
94 /* "long" is long enough on this system */
95 # define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
96 /* usage: sz = BB_STRTOOFF(s, NULL, 10); if (errno || sz < 0) die(); */
97 # define BB_STRTOOFF bb_strtoul
98 # define STRTOOFF strtoul
99 /* usage: printf("size: %"OFF_FMT"d (%"OFF_FMT"x)\n", sz, sz); */
102 /* "long" is too short, need "long long" */
103 # define XATOOFF(a) xatoull_range(a, 0, LLONG_MAX)
104 # define BB_STRTOOFF bb_strtoull
105 # define STRTOOFF strtoull
106 # define OFF_FMT "ll"
109 /* CONFIG_LFS is off */
110 # if UINT_MAX == 0xffffffff
111 /* While sizeof(off_t) == sizeof(int), off_t is typedef'ed to long anyway.
112 * gcc will throw warnings on printf("%d", off_t). Crap... */
113 # define XATOOFF(a) xatoi_u(a)
114 # define BB_STRTOOFF bb_strtou
115 # define STRTOOFF strtol
118 # define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
119 # define BB_STRTOOFF bb_strtoul
120 # define STRTOOFF strtol
124 /* scary. better ideas? (but do *test* them first!) */
125 #define OFF_T_MAX ((off_t)~((off_t)1 << (sizeof(off_t)*8-1)))
127 /* Some useful definitions */
129 #define FALSE ((int) 0)
131 #define TRUE ((int) 1)
133 #define SKIP ((int) 2)
136 #define MTAB_GETMOUNTPT '1'
137 #define MTAB_GETDEVICE '2'
139 #define BUF_SIZE 8192
140 #define EXPAND_ALLOC 1024
142 /* Macros for min/max. */
144 #define MIN(a,b) (((a)<(b))?(a):(b))
148 #define MAX(a,b) (((a)>(b))?(a):(b))
151 /* buffer allocation schemes */
152 #if ENABLE_FEATURE_BUFFERS_GO_ON_STACK
153 #define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len]
154 #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
155 #define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
157 #if ENABLE_FEATURE_BUFFERS_GO_IN_BSS
158 #define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len]
159 #define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
160 #define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
162 #define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer = xmalloc(len)
163 #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer = xmalloc(len)
164 #define RELEASE_CONFIG_BUFFER(buffer) free(buffer)
169 #if defined(__GLIBC__)
170 /* glibc uses __errno_location() to get a ptr to errno */
171 /* We can just memorize it once - no multithreading in busybox :) */
172 extern int *const bb_errno;
174 #define errno (*bb_errno)
177 #if defined(__GLIBC__) && __GLIBC__ < 2
178 int vdprintf(int d, const char *format, va_list ap);
180 // This is declared here rather than #including <libgen.h> in order to avoid
181 // confusing the two versions of basename. See the dirname/basename man page
183 char *dirname(char *path);
184 /* Include our own copy of struct sysinfo to avoid binary compatibility
185 * problems with Linux 2.4, which changed things. Grumble, grumble. */
187 long uptime; /* Seconds since boot */
188 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
189 unsigned long totalram; /* Total usable main memory size */
190 unsigned long freeram; /* Available memory size */
191 unsigned long sharedram; /* Amount of shared memory */
192 unsigned long bufferram; /* Memory used by buffers */
193 unsigned long totalswap; /* Total swap space size */
194 unsigned long freeswap; /* swap space still available */
195 unsigned short procs; /* Number of current processes */
196 unsigned short pad; /* Padding needed for m68k */
197 unsigned long totalhigh; /* Total high memory size */
198 unsigned long freehigh; /* Available high memory size */
199 unsigned int mem_unit; /* Memory unit size in bytes */
200 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
202 int sysinfo(struct sysinfo* info);
204 unsigned long long monotonic_us(void);
205 unsigned monotonic_sec(void);
207 extern void chomp(char *s);
208 extern void trim(char *s);
209 extern char *skip_whitespace(const char *);
210 extern char *skip_non_whitespace(const char *);
212 //TODO: supply a pointer to char[11] buffer (avoid statics)?
213 extern const char *bb_mode_string(mode_t mode);
214 extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
215 extern int remove_file(const char *path, int flags);
216 extern int copy_file(const char *source, const char *dest, int flags);
218 ACTION_RECURSE = (1 << 0),
219 ACTION_FOLLOWLINKS = (1 << 1),
220 ACTION_FOLLOWLINKS_L0 = (1 << 2),
221 ACTION_DEPTHFIRST = (1 << 3),
222 /*ACTION_REVERSE = (1 << 4), - unused */
224 extern int recursive_action(const char *fileName, unsigned flags,
225 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
226 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
227 void* userData, unsigned depth);
228 extern int device_open(const char *device, int mode);
229 extern int get_console_fd(void);
230 extern char *find_block_device(const char *path);
231 /* bb_copyfd_XX print read/write errors and return -1 if they occur */
232 extern off_t bb_copyfd_eof(int fd1, int fd2);
233 extern off_t bb_copyfd_size(int fd1, int fd2, off_t size);
234 extern void bb_copyfd_exact_size(int fd1, int fd2, off_t size);
235 /* "short" copy can be detected by return value < size */
236 /* this helper yells "short read!" if param is not -1 */
237 extern void complain_copyfd_and_die(off_t sz) ATTRIBUTE_NORETURN;
238 extern char bb_process_escape_sequence(const char **ptr);
239 /* xxxx_strip version can modify its parameter:
243 * "abc/def/" -> "def" !!
245 extern char *bb_get_last_path_component_strip(char *path);
246 /* "abc/def/" -> "" and it never modifies 'path' */
247 extern char *bb_get_last_path_component_nostrip(const char *path);
249 int ndelay_on(int fd);
250 int ndelay_off(int fd);
251 int close_on_exec_on(int fd);
252 void xdup2(int, int);
253 void xmove_fd(int, int);
256 DIR *xopendir(const char *path);
257 DIR *warn_opendir(const char *path);
259 /* UNUSED: char *xmalloc_realpath(const char *path); */
260 char *xmalloc_readlink(const char *path);
261 char *xmalloc_readlink_or_warn(const char *path);
262 char *xrealloc_getcwd_or_warn(char *cwd);
265 //TODO: signal(sid, f) is the same? then why?
266 extern void sig_catch(int,void (*)(int));
267 //#define sig_ignore(s) (sig_catch((s), SIG_IGN))
268 //#define sig_uncatch(s) (sig_catch((s), SIG_DFL))
269 extern void sig_block(int);
270 extern void sig_unblock(int);
271 /* UNUSED: extern void sig_blocknone(void); */
272 extern void sig_pause(void);
275 void xsetgid(gid_t gid);
276 void xsetuid(uid_t uid);
277 void xchdir(const char *path);
278 void xsetenv(const char *key, const char *value);
279 void xunlink(const char *pathname);
280 void xstat(const char *pathname, struct stat *buf);
281 int xopen(const char *pathname, int flags);
282 int xopen3(const char *pathname, int flags, int mode);
283 int open_or_warn(const char *pathname, int flags);
284 int open3_or_warn(const char *pathname, int flags, int mode);
285 void xpipe(int filedes[2]);
286 off_t xlseek(int fd, off_t offset, int whence);
287 off_t fdlength(int fd);
289 int xsocket(int domain, int type, int protocol);
290 void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
291 void xlisten(int s, int backlog);
292 void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen);
293 ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
295 /* SO_REUSEADDR allows a server to rebind to an address that is already
296 * "in use" by old connections to e.g. previous server instance which is
297 * killed or crashed. Without it bind will fail until all such connections
298 * time out. Linux does not allow multiple live binds on same ip:port
299 * regardless of SO_REUSEADDR (unlike some other flavors of Unix).
300 * Turn it on before you call bind(). */
301 void setsockopt_reuseaddr(int fd); /* On Linux this never fails. */
302 int setsockopt_broadcast(int fd);
303 /* NB: returns port in host byte order */
304 unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port);
305 typedef struct len_and_sockaddr {
309 struct sockaddr_in sin;
310 #if ENABLE_FEATURE_IPV6
311 struct sockaddr_in6 sin6;
316 LSA_SIZEOF_SA = sizeof(
319 struct sockaddr_in sin;
320 #if ENABLE_FEATURE_IPV6
321 struct sockaddr_in6 sin6;
326 /* Create stream socket, and allocate suitable lsa.
327 * (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6))
328 * af == AF_UNSPEC will result in trying to create IPv6 socket,
329 * and if kernel doesn't support it, IPv4.
331 int xsocket_type(len_and_sockaddr **lsap, USE_FEATURE_IPV6(int af,) int sock_type);
332 int xsocket_stream(len_and_sockaddr **lsap);
333 /* Create server socket bound to bindaddr:port. bindaddr can be NULL,
334 * numeric IP ("N.N.N.N") or numeric IPv6 address,
335 * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
336 * Only if there is no suffix, port argument is used */
337 /* NB: these set SO_REUSEADDR before bind */
338 int create_and_bind_stream_or_die(const char *bindaddr, int port);
339 int create_and_bind_dgram_or_die(const char *bindaddr, int port);
340 /* Create client TCP socket connected to peer:port. Peer cannot be NULL.
341 * Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname,
342 * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
343 * If there is no suffix, port argument is used */
344 int create_and_connect_stream_or_die(const char *peer, int port);
345 /* Connect to peer identified by lsa */
346 int xconnect_stream(const len_and_sockaddr *lsa);
347 /* Return malloc'ed len_and_sockaddr with socket address of host:port
348 * Currently will return IPv4 or IPv6 sockaddrs only
349 * (depending on host), but in theory nothing prevents e.g.
350 * UNIX socket address being returned, IPX sockaddr etc...
351 * On error does bb_error_msg and returns NULL */
352 len_and_sockaddr* host2sockaddr(const char *host, int port);
353 /* Version which dies on error */
354 len_and_sockaddr* xhost2sockaddr(const char *host, int port);
355 len_and_sockaddr* xdotted2sockaddr(const char *host, int port);
356 #if ENABLE_FEATURE_IPV6
357 /* Same, useful if you want to force family (e.g. IPv6) */
358 len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af);
359 len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af);
361 /* [we evaluate af: think about "host_and_af2sockaddr(..., af++)"] */
362 #define host_and_af2sockaddr(host, port, af) ((void)(af), host2sockaddr((host), (port)))
363 #define xhost_and_af2sockaddr(host, port, af) ((void)(af), xhost2sockaddr((host), (port)))
365 /* Assign sin[6]_port member if the socket is an AF_INET[6] one,
366 * otherwise no-op. Useful for ftp.
367 * NB: does NOT do htons() internally, just direct assignment. */
368 void set_nport(len_and_sockaddr *lsa, unsigned port);
369 /* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */
370 int get_nport(const struct sockaddr *sa);
371 /* Reverse DNS. Returns NULL on failure. */
372 char* xmalloc_sockaddr2host(const struct sockaddr *sa);
373 /* This one doesn't append :PORTNUM */
374 char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa);
375 /* This one also doesn't fall back to dotted IP (returns NULL) */
376 char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa);
377 /* inet_[ap]ton on steroids */
378 char* xmalloc_sockaddr2dotted(const struct sockaddr *sa);
379 char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa);
380 // "old" (ipv4 only) API
381 // users: traceroute.c hostname.c - use _list_ of all IPs
382 struct hostent *xgethostbyname(const char *name);
383 // Also mount.c and inetd.c are using gethostbyname(),
384 // + inet_common.c has additional IPv4-only stuff
387 void socket_want_pktinfo(int fd);
388 ssize_t send_to_from(int fd, void *buf, size_t len, int flags,
389 const struct sockaddr *from, const struct sockaddr *to,
391 ssize_t recv_from_to(int fd, void *buf, size_t len, int flags,
392 struct sockaddr *from, struct sockaddr *to,
395 char *xstrdup(const char *s);
396 char *xstrndup(const char *s, int n);
397 char *safe_strncpy(char *dst, const char *src, size_t size);
398 /* Guaranteed to NOT be a macro (smallest code). Saves nearly 2k on uclibc.
399 * But potentially slow, don't use in one-billion-times loops */
400 int bb_putchar(int ch);
401 char *xasprintf(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
402 // gcc-4.1.1 still isn't good enough at optimizing it
403 // (+200 bytes compared to macro)
404 //static ALWAYS_INLINE
405 //int LONE_DASH(const char *s) { return s[0] == '-' && !s[1]; }
406 //static ALWAYS_INLINE
407 //int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; }
408 #define LONE_DASH(s) ((s)[0] == '-' && !(s)[1])
409 #define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
410 #define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1])
411 #define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1])
412 #define DOT_OR_DOTDOT(s) ((s)[0] == '.' && (!(s)[1] || ((s)[1] == '.' && !(s)[2])))
414 /* dmalloc will redefine these to it's own implementation. It is safe
415 * to have the prototypes here unconditionally. */
416 extern void *malloc_or_warn(size_t size);
417 extern void *xmalloc(size_t size);
418 extern void *xzalloc(size_t size);
419 extern void *xrealloc(void *old, size_t size);
421 extern ssize_t safe_read(int fd, void *buf, size_t count);
422 extern ssize_t full_read(int fd, void *buf, size_t count);
423 extern void xread(int fd, void *buf, size_t count);
424 extern unsigned char xread_char(int fd);
425 // Read one line a-la fgets. Uses one read(), works only on seekable streams
426 extern char *reads(int fd, char *buf, size_t count);
427 // Read one line a-la fgets. Reads byte-by-byte.
428 // Useful when it is important to not read ahead.
429 extern char *xmalloc_reads(int fd, char *pfx);
430 extern ssize_t read_close(int fd, void *buf, size_t count);
431 extern ssize_t open_read_close(const char *filename, void *buf, size_t count);
432 extern void *xmalloc_open_read_close(const char *filename, size_t *sizep);
434 extern ssize_t safe_write(int fd, const void *buf, size_t count);
435 extern ssize_t full_write(int fd, const void *buf, size_t count);
436 extern void xwrite(int fd, const void *buf, size_t count);
438 /* Reads and prints to stdout till eof, then closes FILE. Exits on error: */
439 extern void xprint_and_close_file(FILE *file);
440 extern char *xmalloc_fgets(FILE *file);
441 /* Read up to (and including) TERMINATING_STRING: */
442 extern char *xmalloc_fgets_str(FILE *file, const char *terminating_string);
443 /* Chops off '\n' from the end, unlike fgets: */
444 extern char *xmalloc_getline(FILE *file);
445 extern char *bb_get_chunk_from_file(FILE *file, int *end);
446 extern void die_if_ferror(FILE *file, const char *msg);
447 extern void die_if_ferror_stdout(void);
448 extern void xfflush_stdout(void);
449 extern void fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN;
450 extern int fclose_if_not_stdin(FILE *file);
451 extern FILE *xfopen(const char *filename, const char *mode);
452 /* Prints warning to stderr and returns NULL on failure: */
453 extern FILE *fopen_or_warn(const char *filename, const char *mode);
454 /* "Opens" stdin if filename is special, else just opens file: */
455 extern FILE *fopen_or_warn_stdin(const char *filename);
457 /* Wrapper which restarts poll on EINTR or ENOMEM.
458 * On other errors complains [perror("poll")] and returns.
459 * Warning! May take (much) longer than timeout_ms to return!
460 * If this is a problem, use bare poll and open-code EINTR/ENOMEM handling */
461 int safe_poll(struct pollfd *ufds, nfds_t nfds, int timeout_ms);
463 /* Convert each alpha char in str to lower-case */
464 char* str_tolower(char *str);
466 char *utoa(unsigned n);
468 /* Returns a pointer past the formatted number, does NOT null-terminate */
469 char *utoa_to_buf(unsigned n, char *buf, unsigned buflen);
470 char *itoa_to_buf(int n, char *buf, unsigned buflen);
471 void smart_ulltoa5(unsigned long long ul, char buf[5]);
472 //TODO: provide pointer to buf (avoid statics)?
473 const char *make_human_readable_str(unsigned long long size,
474 unsigned long block_size, unsigned long display_unit);
475 /* Put a string of hex bytes ("1b2e66fe"...), return advanced pointer */
476 char *bin2hex(char *buf, const char *cp, int count);
478 /* Last element is marked by mult == 0 */
485 /* Using xatoi() instead of naive atoi() is not always convenient -
486 * in many places people want *non-negative* values, but store them
487 * in signed int. Therefore we need this one:
488 * dies if input is not in [0, INT_MAX] range. Also will reject '-0' etc */
489 int xatoi_u(const char *numstr);
490 /* Useful for reading port numbers */
491 uint16_t xatou16(const char *numstr);
494 /* These parse entries in /etc/passwd and /etc/group. This is desirable
495 * for BusyBox since we want to avoid using the glibc NSS stuff, which
496 * increases target size and is often not needed on embedded systems. */
497 long xuname2uid(const char *name);
498 long xgroup2gid(const char *name);
499 /* wrapper: allows string to contain numeric uid or gid */
500 unsigned long get_ug_id(const char *s, long (*xname2id)(const char *));
501 /* from chpst. Does not die, returns 0 on failure */
506 /* always sets uid and gid */
507 int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok);
508 /* chown-like handling of "user[:[group]" */
509 void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group);
510 /* bb_getpwuid, bb_getgrgid:
511 * bb_getXXXid(buf, bufsz, id) - copy user/group name or id
512 * as a string to buf, return user/group name or NULL
513 * bb_getXXXid(NULL, 0, id) - return user/group name or NULL
514 * bb_getXXXid(NULL, -1, id) - return user/group name or exit
516 char *bb_getpwuid(char *name, int bufsize, long uid);
517 char *bb_getgrgid(char *group, int bufsize, long gid);
518 /* versions which cache results (useful for ps, ls etc) */
519 const char* get_cached_username(uid_t uid);
520 const char* get_cached_groupname(gid_t gid);
521 void clear_username_cache(void);
522 /* internally usernames are saved in fixed-sized char[] buffers */
523 enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
527 int execable_file(const char *name);
528 char *find_execable(const char *filename);
529 int exists_execable(const char *filename);
531 /* BB_EXECxx always execs (it's not doing NOFORK/NOEXEC stuff),
532 * but it may exec busybox and call applet instead of searching PATH.
534 #if ENABLE_FEATURE_PREFER_APPLETS
535 int bb_execvp(const char *file, char *const argv[]);
536 #define BB_EXECVP(prog,cmd) bb_execvp(prog,cmd)
537 #define BB_EXECLP(prog,cmd,...) \
538 execlp((find_applet_by_name(prog)) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
541 #define BB_EXECVP(prog,cmd) execvp(prog,cmd)
542 #define BB_EXECLP(prog,cmd,...) execlp(prog,cmd, __VA_ARGS__)
545 /* NOMMU friendy fork+exec */
546 pid_t spawn(char **argv);
547 pid_t xspawn(char **argv);
549 /* Unlike waitpid, waits ONLY for one process,
550 * It's safe to pass negative 'pids' from failed [v]fork -
551 * wait4pid will return -1 (and will not clobber [v]fork's errno).
552 * IOW: rc = wait4pid(spawn(argv));
553 * if (rc < 0) bb_perror_msg("%s", argv[0]);
554 * if (rc > 0) bb_error_msg("exit code: %d", rc);
556 int wait4pid(int pid);
557 int wait_pid(int *wstat, int pid);
558 int wait_nohang(int *wstat);
559 #define wait_crashed(w) ((w) & 127)
560 #define wait_exitcode(w) ((w) >> 8)
561 #define wait_stopsig(w) ((w) >> 8)
562 #define wait_stopped(w) (((w) & 127) == 127)
563 /* wait4pid(spawn(argv)) + NOFORK/NOEXEC (if configured) */
564 int spawn_and_wait(char **argv);
565 struct nofork_save_area {
567 const struct bb_applet *current_applet;
568 int xfunc_error_retval;
569 uint32_t option_mask32;
573 void save_nofork_data(struct nofork_save_area *save);
574 void restore_nofork_data(struct nofork_save_area *save);
575 /* Does NOT check that applet is NOFORK, just blindly runs it */
576 int run_nofork_applet(const struct bb_applet *a, char **argv);
577 int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet *a, char **argv);
579 /* Helpers for daemonization.
581 * bb_daemonize(flags) = daemonize, does not compile on NOMMU
583 * bb_daemonize_or_rexec(flags, argv) = daemonizes on MMU (and ignores argv),
584 * rexec's itself on NOMMU with argv passed as command line.
585 * Thus bb_daemonize_or_rexec may cause your <applet>_main() to be re-executed
586 * from the start. (It will detect it and not reexec again second time).
587 * You have to audit carefully that you don't do something twice as a result
588 * (opening files/sockets, parsing config files etc...)!
590 * Both of the above will redirect fd 0,1,2 to /dev/null and drop ctty
591 * (will do setsid()).
593 * forkexit_or_rexec(argv) = bare-bones "fork + parent exits" on MMU,
594 * "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid().
595 * Currently used for openvt. On MMU ignores argv.
597 * Helper for network daemons in foreground mode:
599 * bb_sanitize_stdio() = make sure that fd 0,1,2 are opened by opening them
600 * to /dev/null if they are not.
603 DAEMON_CHDIR_ROOT = 1,
604 DAEMON_DEVNULL_STDIO = 2,
605 DAEMON_CLOSE_EXTRA_FDS = 4,
606 DAEMON_ONLY_SANITIZE = 8, /* internal use */
609 void forkexit_or_rexec(void);
610 enum { re_execed = 0 };
611 # define forkexit_or_rexec(argv) forkexit_or_rexec()
612 # define bb_daemonize_or_rexec(flags, argv) bb_daemonize_or_rexec(flags)
613 # define bb_daemonize(flags) bb_daemonize_or_rexec(flags, bogus)
615 void re_exec(char **argv) ATTRIBUTE_NORETURN;
616 void forkexit_or_rexec(char **argv);
617 extern bool re_execed;
618 # define fork() BUG_fork_is_unavailable_on_nommu()
619 # define daemon(a,b) BUG_daemon_is_unavailable_on_nommu()
620 # define bb_daemonize(a) BUG_bb_daemonize_is_unavailable_on_nommu()
622 void bb_daemonize_or_rexec(int flags, char **argv);
623 void bb_sanitize_stdio(void);
626 extern const char *opt_complementary;
627 #if ENABLE_GETOPT_LONG
628 #define No_argument "\0"
629 #define Required_argument "\001"
630 #define Optional_argument "\002"
631 extern const char *applet_long_options;
633 extern uint32_t option_mask32;
634 extern uint32_t getopt32(char **argv, const char *applet_opts, ...);
637 typedef struct llist_t {
639 struct llist_t *link;
641 void llist_add_to(llist_t **old_head, void *data);
642 void llist_add_to_end(llist_t **list_head, void *data);
643 void *llist_pop(llist_t **elm);
644 void llist_unlink(llist_t **head, llist_t *elm);
645 void llist_free(llist_t *elm, void (*freeit)(void *data));
646 llist_t *llist_rev(llist_t *list);
647 /* BTW, surprisingly, changing API to
648 * llist_t *llist_add_to(llist_t *old_head, void *data)
649 * etc does not result in smaller code... */
651 /* start_stop_daemon and udhcpc are special - they want
652 * to create pidfiles regardless of FEATURE_PIDFILE */
653 #if ENABLE_FEATURE_PIDFILE || defined(WANT_PIDFILE)
654 /* True only if we created pidfile which is *file*, not /dev/null etc */
655 extern smallint wrote_pidfile;
656 void write_pidfile(const char *path);
657 #define remove_pidfile(path) do { if (wrote_pidfile) unlink(path); } while (0)
659 enum { wrote_pidfile = 0 };
660 #define write_pidfile(path) ((void)0)
661 #define remove_pidfile(path) ((void)0)
666 LOGMODE_STDIO = (1 << 0),
667 LOGMODE_SYSLOG = (1 << 1) * ENABLE_FEATURE_SYSLOG,
668 LOGMODE_BOTH = LOGMODE_SYSLOG + LOGMODE_STDIO,
670 extern const char *msg_eol;
671 extern smallint logmode;
672 extern int die_sleep;
673 extern int xfunc_error_retval;
674 extern jmp_buf die_jmp;
675 extern void xfunc_die(void) ATTRIBUTE_NORETURN;
676 extern void bb_show_usage(void) ATTRIBUTE_NORETURN ATTRIBUTE_EXTERNALLY_VISIBLE;
677 extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
678 extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
679 extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
680 extern void bb_simple_perror_msg(const char *s);
681 extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
682 extern void bb_simple_perror_msg_and_die(const char *s) __attribute__ ((noreturn));
683 extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
684 extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
685 extern void bb_perror_nomsg_and_die(void) ATTRIBUTE_NORETURN;
686 extern void bb_perror_nomsg(void);
687 extern void bb_info_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
688 extern void bb_verror_msg(const char *s, va_list p, const char *strerr);
691 /* applets which are useful from another applets */
692 int bb_cat(char** argv);
693 int bb_echo(char** argv);
694 int test_main(int argc, char** argv);
695 int kill_main(int argc, char **argv);
697 void bb_displayroutes(int noresolve, int netstatfmt);
699 int chown_main(int argc, char **argv);
701 int gunzip_main(int argc, char **argv);
703 int bbunpack(char **argv,
704 char* (*make_new_name)(char *filename),
705 USE_DESKTOP(long long) int (*unpacker)(void)
710 int create_icmp_socket(void);
711 int create_icmp6_socket(void);
713 /* This structure defines protocol families and their handlers. */
719 char *(*print) (unsigned char *);
720 const char *(*sprint) (struct sockaddr *, int numeric);
721 int (*input) (/*int type,*/ const char *bufp, struct sockaddr *);
722 void (*herror) (char *text);
723 int (*rprint) (int options);
724 int (*rinput) (int typ, int ext, char **argv);
727 int (*getmask) (char *src, struct sockaddr * mask, char *name);
729 /* This structure defines hardware protocols and their handlers. */
735 char *(*print) (unsigned char *);
736 int (*input) (const char *, struct sockaddr *);
737 int (*activate) (int fd);
738 int suppress_null_addr;
740 extern smallint interface_opt_a;
741 int display_interfaces(char *ifname);
742 const struct aftype *get_aftype(const char *name);
743 const struct hwtype *get_hwtype(const char *name);
744 const struct hwtype *get_hwntype(int type);
747 #ifndef BUILD_INDIVIDUAL
748 extern const struct bb_applet *find_applet_by_name(const char *name);
749 /* Returns only if applet is not found. */
750 extern void run_applet_and_exit(const char *name, char **argv);
751 extern void run_current_applet_and_exit(char **argv) ATTRIBUTE_NORETURN;
754 extern int match_fstype(const struct mntent *mt, const char *fstypes);
755 extern struct mntent *find_mount_point(const char *name, const char *table);
756 extern void erase_mtab(const char * name);
757 extern unsigned int tty_baud_to_value(speed_t speed);
758 extern speed_t tty_value_to_baud(unsigned int value);
759 extern void bb_warn_ignoring_args(int n);
761 extern int get_linux_version_code(void);
763 extern char *query_loop(const char *device);
764 extern int del_loop(const char *device);
765 /* If *devname is not NULL, use that name, otherwise try to find free one,
766 * malloc and return it in *devname.
767 * return value: 1: read-only loopdev was setup, 0: rw, < 0: error */
768 extern int set_loop(char **devname, const char *file, unsigned long long offset);
771 //TODO: pass buf pointer or return allocated buf (avoid statics)?
772 char *bb_askpass(int timeout, const char * prompt);
773 int bb_ask_confirmation(void);
774 int klogctl(int type, char * b, int len);
776 extern int bb_parse_mode(const char* s, mode_t* theMode);
778 char *concat_path_file(const char *path, const char *filename);
779 char *concat_subpath_file(const char *path, const char *filename);
780 const char *bb_basename(const char *name);
781 /* NB: can violate const-ness (similarly to strchr) */
782 char *last_char_is(const char *s, int c);
785 USE_DESKTOP(long long) int uncompress(int fd_in, int fd_out);
786 int inflate(int in, int out);
789 int bb_make_directory(char *path, long mode, int flags);
791 int get_signum(const char *name);
792 const char *get_signame(int number);
793 void print_signames(void);
795 char *bb_simplify_path(const char *path);
798 extern void bb_do_delay(int seconds);
799 extern void change_identity(const struct passwd *pw);
800 extern const char *change_identity_e2str(const struct passwd *pw);
801 extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args) ATTRIBUTE_NORETURN;
802 extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args);
804 extern void renew_current_security_context(void);
805 extern void set_current_security_context(security_context_t sid);
806 extern context_t set_security_context_component(security_context_t cur_context,
807 char *user, char *role, char *type, char *range);
808 extern void setfscreatecon_or_die(security_context_t scontext);
810 extern void selinux_or_die(void);
811 extern int restricted_shell(const char *shell);
813 /* setup_environment:
814 * if loginshell = 1: cd(pw->pw_dir), clear environment, then set
816 * USER=pw->pw_name, LOGNAME=pw->pw_name
817 * PATH=bb_default_[root_]path
820 * else if changeenv = 1:
821 * if not root (if pw->pw_uid != 0):
822 * USER=pw->pw_name, LOGNAME=pw->pw_name
827 extern void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw);
828 extern int correct_password(const struct passwd *pw);
829 /* Returns a ptr to static storage */
830 extern char *pw_encrypt(const char *clear, const char *salt);
831 extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
832 extern int index_in_str_array(const char *const string_array[], const char *key);
833 extern int index_in_strings(const char *strings, const char *key);
834 extern int index_in_substr_array(const char *const string_array[], const char *key);
835 extern int index_in_substrings(const char *strings, const char *key);
836 extern void print_login_issue(const char *issue_file, const char *tty);
837 extern void print_login_prompt(void);
839 /* rnd is additional random input. New one is returned.
840 * Useful if you call crypt_make_salt many times in a row:
841 * rnd = crypt_make_salt(buf1, 4, 0);
842 * rnd = crypt_make_salt(buf2, 4, rnd);
843 * rnd = crypt_make_salt(buf3, 4, rnd);
844 * (otherwise we risk having same salt generated)
846 extern int crypt_make_salt(char *p, int cnt, int rnd);
848 /* Returns number of lines changed, or -1 on error */
849 extern int update_passwd(const char *filename, const char *username,
852 /* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */
853 int get_terminal_width_height(int fd, int *width, int *height);
855 int ioctl_or_perror(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
856 void ioctl_or_perror_and_die(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
857 #if ENABLE_IOCTL_HEX2STR_ERROR
858 int bb_ioctl_or_warn(int fd, int request, void *argp, const char *ioctl_name);
859 void bb_xioctl(int fd, int request, void *argp, const char *ioctl_name);
860 #define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp,#request)
861 #define xioctl(fd,request,argp) bb_xioctl(fd,request,argp,#request)
863 int bb_ioctl_or_warn(int fd, int request, void *argp);
864 void bb_xioctl(int fd, int request, void *argp);
865 #define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp)
866 #define xioctl(fd,request,argp) bb_xioctl(fd,request,argp)
869 char *is_in_ino_dev_hashtable(const struct stat *statbuf);
870 void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
871 void reset_ino_dev_hashtable(void);
873 /* At least glibc has horrendously large inline for this, so wrap it */
874 unsigned long long bb_makedev(unsigned int major, unsigned int minor);
876 #define makedev(a,b) bb_makedev(a,b)
880 #if ENABLE_FEATURE_EDITING
881 /* It's NOT just ENABLEd or disabled. It's a number: */
882 #ifdef CONFIG_FEATURE_EDITING_HISTORY
883 #define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
885 #define MAX_HISTORY 0
887 typedef struct line_input_t {
889 const char *path_lookup;
893 USE_FEATURE_EDITING_SAVEHISTORY(const char *hist_file;)
894 char *history[MAX_HISTORY + 1];
898 DO_HISTORY = 1 * (MAX_HISTORY > 0),
899 SAVE_HISTORY = 2 * (MAX_HISTORY > 0) * ENABLE_FEATURE_EDITING_SAVEHISTORY,
900 TAB_COMPLETION = 4 * ENABLE_FEATURE_TAB_COMPLETION,
901 USERNAME_COMPLETION = 8 * ENABLE_FEATURE_USERNAME_COMPLETION,
902 VI_MODE = 0x10 * ENABLE_FEATURE_EDITING_VI,
903 WITH_PATH_LOOKUP = 0x20,
904 FOR_SHELL = DO_HISTORY | SAVE_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION,
906 line_input_t *new_line_input_t(int flags);
908 * -1 on read errors or EOF, or on bare Ctrl-D.
910 * >0 length of input string, including terminating '\n'
911 * [is this true? stores "" in 'command' if return value is 0 or -1]
913 int read_line_input(const char* prompt, char* command, int maxsize, line_input_t *state);
915 int read_line_input(const char* prompt, char* command, int maxsize);
916 #define read_line_input(prompt, command, maxsize, state) \
917 read_line_input(prompt, command, maxsize)
923 enum { COMM_LEN = TASK_COMM_LEN };
925 /* synchronize with sizeof(task_struct.comm) in /usr/include/linux/sched.h */
926 enum { COMM_LEN = 16 };
929 typedef struct procps_status_t {
931 uint8_t shift_pages_to_bytes;
932 uint8_t shift_pages_to_kb;
933 /* Fields are set to 0/NULL if failed to determine (or not requested) */
935 USE_SELINUX(char *context;)
936 /* Everything below must contain no ptrs to malloc'ed data:
937 * it is memset(0) for each process in procps_scan() */
938 unsigned long vsz, rss; /* we round it to kbytes */
939 unsigned long stime, utime;
946 unsigned tty_major,tty_minor;
947 #if ENABLE_FEATURE_TOPMEM
948 unsigned long mapped_rw;
949 unsigned long mapped_ro;
950 unsigned long shared_clean;
951 unsigned long shared_dirty;
952 unsigned long private_clean;
953 unsigned long private_dirty;
957 /* basename of executable in exec(2), read from /proc/N/stat
958 * (if executable is symlink or script, it is NOT replaced
959 * by link target or interpreter name) */
961 /* user/group? - use passwd/group parsing functions */
965 PSSCAN_PPID = 1 << 1,
966 PSSCAN_PGID = 1 << 2,
968 PSSCAN_UIDGID = 1 << 4,
969 PSSCAN_COMM = 1 << 5,
970 /* PSSCAN_CMD = 1 << 6, - use read_cmdline instead */
971 PSSCAN_ARGV0 = 1 << 7,
972 /* PSSCAN_EXE = 1 << 8, - not implemented */
973 PSSCAN_STATE = 1 << 9,
974 PSSCAN_VSZ = 1 << 10,
975 PSSCAN_RSS = 1 << 11,
976 PSSCAN_STIME = 1 << 12,
977 PSSCAN_UTIME = 1 << 13,
978 PSSCAN_TTY = 1 << 14,
979 PSSCAN_SMAPS = (1 << 15) * ENABLE_FEATURE_TOPMEM,
980 PSSCAN_ARGVN = (1 << 16) * (ENABLE_PGREP | ENABLE_PKILL),
981 USE_SELINUX(PSSCAN_CONTEXT = 1 << 17,)
982 /* These are all retrieved from proc/NN/stat in one go: */
983 PSSCAN_STAT = PSSCAN_PPID | PSSCAN_PGID | PSSCAN_SID
984 | PSSCAN_COMM | PSSCAN_STATE
985 | PSSCAN_VSZ | PSSCAN_RSS
986 | PSSCAN_STIME | PSSCAN_UTIME
989 procps_status_t* alloc_procps_scan(int flags);
990 void free_procps_scan(procps_status_t* sp);
991 procps_status_t* procps_scan(procps_status_t* sp, int flags);
992 /* Format cmdline (up to col chars) into char buf[col+1] */
993 /* Puts [comm] if cmdline is empty (-> process is a kernel thread) */
994 void read_cmdline(char *buf, int col, unsigned pid, const char *comm);
995 pid_t *find_pid_by_name(const char* procName);
996 pid_t *pidlist_reverse(pid_t *pidList);
999 extern const char bb_uuenc_tbl_base64[];
1000 extern const char bb_uuenc_tbl_std[];
1001 void bb_uuencode(char *store, const void *s, int length, const char *tbl);
1003 typedef struct sha1_ctx_t {
1008 void sha1_begin(sha1_ctx_t *ctx);
1009 void sha1_hash(const void *data, size_t length, sha1_ctx_t *ctx);
1010 void *sha1_end(void *resbuf, sha1_ctx_t *ctx);
1012 typedef struct md5_ctx_t {
1021 void md5_begin(md5_ctx_t *ctx);
1022 void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
1023 void *md5_end(void *resbuf, md5_ctx_t *ctx);
1025 uint32_t *crc32_filltable(uint32_t *tbl256, int endian);
1028 enum { /* DO NOT CHANGE THESE VALUES! cp.c, mv.c, install.c depend on them. */
1029 FILEUTILS_PRESERVE_STATUS = 1,
1030 FILEUTILS_DEREFERENCE = 2,
1031 FILEUTILS_RECUR = 4,
1032 FILEUTILS_FORCE = 8,
1033 FILEUTILS_INTERACTIVE = 0x10,
1034 FILEUTILS_MAKE_HARDLINK = 0x20,
1035 FILEUTILS_MAKE_SOFTLINK = 0x40,
1037 FILEUTILS_PRESERVE_SECURITY_CONTEXT = 0x80,
1038 FILEUTILS_SET_SECURITY_CONTEXT = 0x100
1042 #define FILEUTILS_CP_OPTSTR "pdRfils" USE_SELINUX("c")
1043 extern const struct bb_applet *current_applet;
1044 extern const char *applet_name;
1045 /* "BusyBox vN.N.N (timestamp or extra_vestion)" */
1046 extern const char bb_banner[];
1047 extern const char bb_msg_memory_exhausted[];
1048 extern const char bb_msg_invalid_date[];
1049 extern const char bb_msg_read_error[];
1050 extern const char bb_msg_write_error[];
1051 extern const char bb_msg_unknown[];
1052 extern const char bb_msg_can_not_create_raw_socket[];
1053 extern const char bb_msg_perm_denied_are_you_root[];
1054 extern const char bb_msg_requires_arg[];
1055 extern const char bb_msg_invalid_arg[];
1056 extern const char bb_msg_standard_input[];
1057 extern const char bb_msg_standard_output[];
1059 extern const char bb_str_default[];
1060 /* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */
1061 extern const char bb_hexdigits_upcase[];
1063 extern const char bb_path_mtab_file[];
1064 extern const char bb_path_passwd_file[];
1065 extern const char bb_path_shadow_file[];
1066 extern const char bb_path_gshadow_file[];
1067 extern const char bb_path_group_file[];
1068 extern const char bb_path_motd_file[];
1069 extern const char bb_path_wtmp_file[];
1070 extern const char bb_dev_null[];
1071 extern const char bb_busybox_exec_path[];
1072 /* util-linux manpage says /sbin:/bin:/usr/sbin:/usr/bin,
1073 * but I want to save a few bytes here */
1074 extern const char bb_PATH_root_path[]; /* "PATH=/sbin:/usr/sbin:/bin:/usr/bin" */
1075 #define bb_default_root_path (bb_PATH_root_path + sizeof("PATH"))
1076 #define bb_default_path (bb_PATH_root_path + sizeof("PATH=/sbin:/usr/sbin"))
1078 extern const int const_int_0;
1079 extern const int const_int_1;
1085 /* Providing hard guarantee on minimum size (think of BUFSIZ == 128) */
1086 enum { COMMON_BUFSIZE = (BUFSIZ >= 256*sizeof(void*) ? BUFSIZ+1 : 256*sizeof(void*)) };
1087 extern char bb_common_bufsiz1[COMMON_BUFSIZE];
1088 /* This struct is deliberately not defined. */
1089 /* See docs/keep_data_small.txt */
1091 /* '*const' ptr makes gcc optimize code much better.
1092 * Magic prevents ptr_to_globals from going into rodata.
1093 * If you want to assign a value, use PTR_TO_GLOBALS = xxx */
1094 extern struct globals *const ptr_to_globals;
1095 #define PTR_TO_GLOBALS (*(struct globals**)&ptr_to_globals)
1098 /* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don't use it,
1099 * use bb_default_login_shell and following defines.
1100 * If you change LIBBB_DEFAULT_LOGIN_SHELL,
1101 * don't forget to change increment constant. */
1102 #define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh"
1103 extern const char bb_default_login_shell[];
1105 #define DEFAULT_SHELL (bb_default_login_shell+1)
1107 #define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
1110 #if ENABLE_FEATURE_DEVFS
1111 # define CURRENT_VC "/dev/vc/0"
1112 # define VC_1 "/dev/vc/1"
1113 # define VC_2 "/dev/vc/2"
1114 # define VC_3 "/dev/vc/3"
1115 # define VC_4 "/dev/vc/4"
1116 # define VC_5 "/dev/vc/5"
1117 #if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
1118 /* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their
1119 respective serial ports .. as such, we can't use the common device paths for
1121 # define SC_0 "/dev/ttsc/0"
1122 # define SC_1 "/dev/ttsc/1"
1123 # define SC_FORMAT "/dev/ttsc/%d"
1125 # define SC_0 "/dev/tts/0"
1126 # define SC_1 "/dev/tts/1"
1127 # define SC_FORMAT "/dev/tts/%d"
1129 # define VC_FORMAT "/dev/vc/%d"
1130 # define LOOP_FORMAT "/dev/loop/%d"
1131 # define LOOP_NAMESIZE (sizeof("/dev/loop/") + sizeof(int)*3 + 1)
1132 # define LOOP_NAME "/dev/loop/"
1133 # define FB_0 "/dev/fb/0"
1135 # define CURRENT_VC "/dev/tty0"
1136 # define VC_1 "/dev/tty1"
1137 # define VC_2 "/dev/tty2"
1138 # define VC_3 "/dev/tty3"
1139 # define VC_4 "/dev/tty4"
1140 # define VC_5 "/dev/tty5"
1141 #if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
1142 # define SC_0 "/dev/ttySC0"
1143 # define SC_1 "/dev/ttySC1"
1144 # define SC_FORMAT "/dev/ttySC%d"
1146 # define SC_0 "/dev/ttyS0"
1147 # define SC_1 "/dev/ttyS1"
1148 # define SC_FORMAT "/dev/ttyS%d"
1150 # define VC_FORMAT "/dev/tty%d"
1151 # define LOOP_FORMAT "/dev/loop%d"
1152 # define LOOP_NAMESIZE (sizeof("/dev/loop") + sizeof(int)*3 + 1)
1153 # define LOOP_NAME "/dev/loop"
1154 # define FB_0 "/dev/fb0"
1157 /* The following devices are the same on devfs and non-devfs systems. */
1158 #define CURRENT_TTY "/dev/tty"
1159 #define DEV_CONSOLE "/dev/console"
1162 #ifndef RB_POWER_OFF
1163 /* Stop system and switch power off if possible. */
1164 #define RB_POWER_OFF 0x4321fedc
1167 /* Make sure we call functions instead of macros. */
1181 /* This one is more efficient - we save ~400 bytes */
1183 #define isdigit(a) ((unsigned)((a) - '0') <= 9)
1187 #include <dmalloc.h>
1190 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
1192 #endif /* __LIBBUSYBOX_H__ */