source: branches/2.2.9/mindi-busybox/include/libbb.h @ 2142

Last change on this file since 2142 was 1772, checked in by bruno, 12 years ago

Update mindi-busybox to 1.7.3

File size: 40.7 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Busybox main internal header file
4 *
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.
7 *
8 * Licensed under the GPL version 2, see the file LICENSE in this tarball.
9 */
10#ifndef __LIBBUSYBOX_H__
11#define __LIBBUSYBOX_H__    1
12
13#include "platform.h"
14
15#include <ctype.h>
16#include <dirent.h>
17#include <errno.h>
18#include <fcntl.h>
19#include <inttypes.h>
20#include <mntent.h>
21#include <netdb.h>
22#include <setjmp.h>
23#include <signal.h>
24#include <stdio.h>
25#include <stdlib.h>
26#include <stdarg.h>
27#include <stddef.h>
28#include <string.h>
29/* #include <strings.h> - said to be obsolete */
30#include <sys/ioctl.h>
31#include <sys/mman.h>
32#include <sys/socket.h>
33#include <sys/stat.h>
34#include <sys/statfs.h>
35#include <sys/time.h>
36#include <sys/types.h>
37#include <sys/wait.h>
38#include <termios.h>
39#include <time.h>
40#include <unistd.h>
41#include <utime.h>
42
43#if ENABLE_SELINUX
44#include <selinux/selinux.h>
45#include <selinux/context.h>
46#endif
47
48#if ENABLE_LOCALE_SUPPORT
49#include <locale.h>
50#else
51#define setlocale(x,y) ((void)0)
52#endif
53
54#include "pwd_.h"
55#include "grp_.h"
56/* ifdef it out, because it may include <shadow.h> */
57/* and we may not even _have_ <shadow.h>! */
58#if ENABLE_FEATURE_SHADOWPASSWDS
59#include "shadow_.h"
60#endif
61
62/* Try to pull in PATH_MAX */
63#include <limits.h>
64#include <sys/param.h>
65#ifndef PATH_MAX
66#define PATH_MAX 256
67#endif
68
69/* Tested to work correctly (IIRC :]) */
70#define MAXINT(T) (T)( \
71    ((T)-1) > 0 \
72    ? (T)-1 \
73    : (T)~((T)1 << (sizeof(T)*8-1)) \
74    )
75
76#define MININT(T) (T)( \
77    ((T)-1) > 0 \
78    ? (T)0 \
79    : ((T)1 << (sizeof(T)*8-1)) \
80    )
81
82/* Large file support */
83/* Note that CONFIG_LFS forces bbox to be built with all common ops
84 * (stat, lseek etc) mapped to "largefile" variants by libc.
85 * Practically it means that open() automatically has O_LARGEFILE added
86 * and all filesize/file_offset parameters and struct members are "large"
87 * (in today's world - signed 64bit). For full support of large files,
88 * we need a few helper #defines (below) and careful use of off_t
89 * instead of int/ssize_t. No lseek64(), O_LARGEFILE etc necessary */
90#if ENABLE_LFS
91/* CONFIG_LFS is on */
92# if ULONG_MAX > 0xffffffff
93/* "long" is long enough on this system */
94#  define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
95/* usage: sz = BB_STRTOOFF(s, NULL, 10); if (errno || sz < 0) die(); */
96#  define BB_STRTOOFF bb_strtoul
97#  define STRTOOFF strtoul
98/* usage: printf("size: %"OFF_FMT"d (%"OFF_FMT"x)\n", sz, sz); */
99#  define OFF_FMT "l"
100# else
101/* "long" is too short, need "long long" */
102#  define XATOOFF(a) xatoull_range(a, 0, LLONG_MAX)
103#  define BB_STRTOOFF bb_strtoull
104#  define STRTOOFF strtoull
105#  define OFF_FMT "ll"
106# endif
107#else
108/* CONFIG_LFS is off */
109# if UINT_MAX == 0xffffffff
110/* While sizeof(off_t) == sizeof(int), off_t is typedef'ed to long anyway.
111 * gcc will throw warnings on printf("%d", off_t). Crap... */
112#  define XATOOFF(a) xatoi_u(a)
113#  define BB_STRTOOFF bb_strtou
114#  define STRTOOFF strtol
115#  define OFF_FMT "l"
116# else
117#  define XATOOFF(a) xatoul_range(a, 0, LONG_MAX)
118#  define BB_STRTOOFF bb_strtoul
119#  define STRTOOFF strtol
120#  define OFF_FMT "l"
121# endif
122#endif
123/* scary. better ideas? (but do *test* them first!) */
124#define OFF_T_MAX  ((off_t)~((off_t)1 << (sizeof(off_t)*8-1)))
125
126/* Some useful definitions */
127#undef FALSE
128#define FALSE   ((int) 0)
129#undef TRUE
130#define TRUE    ((int) 1)
131#undef SKIP
132#define SKIP    ((int) 2)
133
134/* for mtab.c */
135#define MTAB_GETMOUNTPT '1'
136#define MTAB_GETDEVICE  '2'
137
138#define BUF_SIZE        8192
139#define EXPAND_ALLOC    1024
140
141/* Macros for min/max.  */
142#ifndef MIN
143#define MIN(a,b) (((a)<(b))?(a):(b))
144#endif
145
146#ifndef MAX
147#define MAX(a,b) (((a)>(b))?(a):(b))
148#endif
149
150/* buffer allocation schemes */
151#if ENABLE_FEATURE_BUFFERS_GO_ON_STACK
152#define RESERVE_CONFIG_BUFFER(buffer,len)  char buffer[len]
153#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
154#define RELEASE_CONFIG_BUFFER(buffer)      ((void)0)
155#else
156#if ENABLE_FEATURE_BUFFERS_GO_IN_BSS
157#define RESERVE_CONFIG_BUFFER(buffer,len)  static          char buffer[len]
158#define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
159#define RELEASE_CONFIG_BUFFER(buffer)      ((void)0)
160#else
161#define RESERVE_CONFIG_BUFFER(buffer,len)  char *buffer = xmalloc(len)
162#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer = xmalloc(len)
163#define RELEASE_CONFIG_BUFFER(buffer)      free(buffer)
164#endif
165#endif
166
167
168#if defined(__GLIBC__)
169/* glibc uses __errno_location() to get a ptr to errno */
170/* We can just memorize it once - no multithreading in busybox :) */
171extern int *const bb_errno;
172#undef errno
173#define errno (*bb_errno)
174#endif
175
176#if defined(__GLIBC__) && __GLIBC__ < 2
177int vdprintf(int d, const char *format, va_list ap);
178#endif
179// This is declared here rather than #including <libgen.h> in order to avoid
180// confusing the two versions of basename.  See the dirname/basename man page
181// for details.
182char *dirname(char *path);
183/* Include our own copy of struct sysinfo to avoid binary compatibility
184 * problems with Linux 2.4, which changed things.  Grumble, grumble. */
185struct sysinfo {
186    long uptime;            /* Seconds since boot */
187    unsigned long loads[3];     /* 1, 5, and 15 minute load averages */
188    unsigned long totalram;     /* Total usable main memory size */
189    unsigned long freeram;      /* Available memory size */
190    unsigned long sharedram;    /* Amount of shared memory */
191    unsigned long bufferram;    /* Memory used by buffers */
192    unsigned long totalswap;    /* Total swap space size */
193    unsigned long freeswap;     /* swap space still available */
194    unsigned short procs;       /* Number of current processes */
195    unsigned short pad;         /* Padding needed for m68k */
196    unsigned long totalhigh;    /* Total high memory size */
197    unsigned long freehigh;     /* Available high memory size */
198    unsigned int mem_unit;      /* Memory unit size in bytes */
199    char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
200};
201int sysinfo(struct sysinfo* info);
202
203unsigned long long monotonic_us(void);
204unsigned monotonic_sec(void);
205
206extern void chomp(char *s);
207extern void trim(char *s);
208extern char *skip_whitespace(const char *);
209extern char *skip_non_whitespace(const char *);
210
211//TODO: supply a pointer to char[11] buffer (avoid statics)?
212extern const char *bb_mode_string(mode_t mode);
213extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
214extern int remove_file(const char *path, int flags);
215extern int copy_file(const char *source, const char *dest, int flags);
216enum {
217    ACTION_RECURSE        = (1 << 0),
218    ACTION_FOLLOWLINKS    = (1 << 1),
219    ACTION_FOLLOWLINKS_L0 = (1 << 2),
220    ACTION_DEPTHFIRST     = (1 << 3),
221    /*ACTION_REVERSE      = (1 << 4), - unused */
222};
223extern int recursive_action(const char *fileName, unsigned flags,
224    int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
225    int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
226    void* userData, unsigned depth);
227extern int device_open(const char *device, int mode);
228extern int get_console_fd(void);
229extern char *find_block_device(const char *path);
230/* bb_copyfd_XX print read/write errors and return -1 if they occur */
231extern off_t bb_copyfd_eof(int fd1, int fd2);
232extern off_t bb_copyfd_size(int fd1, int fd2, off_t size);
233extern void bb_copyfd_exact_size(int fd1, int fd2, off_t size);
234/* "short" copy can be detected by return value < size */
235/* this helper yells "short read!" if param is not -1 */
236extern void complain_copyfd_and_die(off_t sz) ATTRIBUTE_NORETURN;
237extern char bb_process_escape_sequence(const char **ptr);
238/* TODO: sometimes modifies its parameter, which
239 * makes it rather inconvenient at times: */
240extern char *bb_get_last_path_component(char *path);
241
242int ndelay_on(int fd);
243int ndelay_off(int fd);
244void xdup2(int, int);
245void xmove_fd(int, int);
246
247
248DIR *xopendir(const char *path);
249DIR *warn_opendir(const char *path);
250
251/* UNUSED: char *xmalloc_realpath(const char *path); */
252char *xmalloc_readlink(const char *path);
253char *xmalloc_readlink_or_warn(const char *path);
254char *xrealloc_getcwd_or_warn(char *cwd);
255
256
257//TODO: signal(sid, f) is the same? then why?
258extern void sig_catch(int,void (*)(int));
259//#define sig_ignore(s) (sig_catch((s), SIG_IGN))
260//#define sig_uncatch(s) (sig_catch((s), SIG_DFL))
261extern void sig_block(int);
262extern void sig_unblock(int);
263/* UNUSED: extern void sig_blocknone(void); */
264extern void sig_pause(void);
265
266
267void xsetgid(gid_t gid);
268void xsetuid(uid_t uid);
269void xchdir(const char *path);
270void xsetenv(const char *key, const char *value);
271void xunlink(const char *pathname);
272void xstat(const char *pathname, struct stat *buf);
273int xopen(const char *pathname, int flags);
274int xopen3(const char *pathname, int flags, int mode);
275int open_or_warn(const char *pathname, int flags);
276int open3_or_warn(const char *pathname, int flags, int mode);
277void xpipe(int filedes[2]);
278off_t xlseek(int fd, off_t offset, int whence);
279off_t fdlength(int fd);
280
281int xsocket(int domain, int type, int protocol);
282void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
283void xlisten(int s, int backlog);
284void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen);
285ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
286                socklen_t tolen);
287/* SO_REUSEADDR allows a server to rebind to an address that is already
288 * "in use" by old connections to e.g. previous server instance which is
289 * killed or crashed. Without it bind will fail until all such connections
290 * time out. Linux does not allow multiple live binds on same ip:port
291 * regardless of SO_REUSEADDR (unlike some other flavors of Unix).
292 * Turn it on before you call bind(). */
293void setsockopt_reuseaddr(int fd); /* On Linux this never fails. */
294int setsockopt_broadcast(int fd);
295/* NB: returns port in host byte order */
296unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port);
297typedef struct len_and_sockaddr {
298    socklen_t len;
299    union {
300        struct sockaddr sa;
301        struct sockaddr_in sin;
302#if ENABLE_FEATURE_IPV6
303        struct sockaddr_in6 sin6;
304#endif
305    };
306} len_and_sockaddr;
307enum {
308    LSA_SIZEOF_SA = sizeof(
309        union {
310            struct sockaddr sa;
311            struct sockaddr_in sin;
312#if ENABLE_FEATURE_IPV6
313            struct sockaddr_in6 sin6;
314#endif
315        }
316    )
317};
318/* Create stream socket, and allocate suitable lsa.
319 * (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6))
320 * af == AF_UNSPEC will result in trying to create IPv6 socket,
321 * and if kernel doesn't support it, IPv4.
322 */
323int xsocket_type(len_and_sockaddr **lsap, USE_FEATURE_IPV6(int af,) int sock_type);
324int xsocket_stream(len_and_sockaddr **lsap);
325/* Create server socket bound to bindaddr:port. bindaddr can be NULL,
326 * numeric IP ("N.N.N.N") or numeric IPv6 address,
327 * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
328 * Only if there is no suffix, port argument is used */
329/* NB: these set SO_REUSEADDR before bind */
330int create_and_bind_stream_or_die(const char *bindaddr, int port);
331int create_and_bind_dgram_or_die(const char *bindaddr, int port);
332/* Create client TCP socket connected to peer:port. Peer cannot be NULL.
333 * Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname,
334 * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
335 * If there is no suffix, port argument is used */
336int create_and_connect_stream_or_die(const char *peer, int port);
337/* Connect to peer identified by lsa */
338int xconnect_stream(const len_and_sockaddr *lsa);
339/* Return malloc'ed len_and_sockaddr with socket address of host:port
340 * Currently will return IPv4 or IPv6 sockaddrs only
341 * (depending on host), but in theory nothing prevents e.g.
342 * UNIX socket address being returned, IPX sockaddr etc...
343 * On error does bb_error_msg and returns NULL */
344len_and_sockaddr* host2sockaddr(const char *host, int port);
345/* Version which dies on error */
346len_and_sockaddr* xhost2sockaddr(const char *host, int port);
347len_and_sockaddr* xdotted2sockaddr(const char *host, int port);
348#if ENABLE_FEATURE_IPV6
349/* Same, useful if you want to force family (e.g. IPv6) */
350len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af);
351len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af);
352#else
353/* [we evaluate af: think about "host_and_af2sockaddr(..., af++)"] */
354#define host_and_af2sockaddr(host, port, af) ((void)(af), host2sockaddr((host), (port)))
355#define xhost_and_af2sockaddr(host, port, af) ((void)(af), xhost2sockaddr((host), (port)))
356#endif
357/* Assign sin[6]_port member if the socket is an AF_INET[6] one,
358 * otherwise no-op. Useful for ftp.
359 * NB: does NOT do htons() internally, just direct assignment. */
360void set_nport(len_and_sockaddr *lsa, unsigned port);
361/* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */
362int get_nport(const struct sockaddr *sa);
363/* Reverse DNS. Returns NULL on failure. */
364char* xmalloc_sockaddr2host(const struct sockaddr *sa);
365/* This one doesn't append :PORTNUM */
366char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa);
367/* This one also doesn't fall back to dotted IP (returns NULL) */
368char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa);
369/* inet_[ap]ton on steroids */
370char* xmalloc_sockaddr2dotted(const struct sockaddr *sa);
371char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa);
372// "old" (ipv4 only) API
373// users: traceroute.c hostname.c - use _list_ of all IPs
374struct hostent *xgethostbyname(const char *name);
375// Also mount.c and inetd.c are using gethostbyname(),
376// + inet_common.c has additional IPv4-only stuff
377
378
379void socket_want_pktinfo(int fd);
380ssize_t send_to_from(int fd, void *buf, size_t len, int flags,
381        const struct sockaddr *from, const struct sockaddr *to,
382        socklen_t tolen);
383ssize_t recv_from_to(int fd, void *buf, size_t len, int flags,
384        struct sockaddr *from, struct sockaddr *to,
385        socklen_t sa_size);
386
387
388extern char *xstrdup(const char *s);
389extern char *xstrndup(const char *s, int n);
390extern char *safe_strncpy(char *dst, const char *src, size_t size);
391extern char *xasprintf(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
392// gcc-4.1.1 still isn't good enough at optimizing it
393// (+200 bytes compared to macro)
394//static ALWAYS_INLINE
395//int LONE_DASH(const char *s) { return s[0] == '-' && !s[1]; }
396//static ALWAYS_INLINE
397//int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; }
398#define LONE_DASH(s)     ((s)[0] == '-' && !(s)[1])
399#define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
400#define LONE_CHAR(s,c)     ((s)[0] == (c) && !(s)[1])
401#define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1])
402#define DOT_OR_DOTDOT(s) ((s)[0] == '.' && (!(s)[1] || ((s)[1] == '.' && !(s)[2])))
403
404/* dmalloc will redefine these to it's own implementation. It is safe
405 * to have the prototypes here unconditionally.  */
406extern void *malloc_or_warn(size_t size);
407extern void *xmalloc(size_t size);
408extern void *xzalloc(size_t size);
409extern void *xrealloc(void *old, size_t size);
410
411extern ssize_t safe_read(int fd, void *buf, size_t count);
412extern ssize_t full_read(int fd, void *buf, size_t count);
413extern void xread(int fd, void *buf, size_t count);
414extern unsigned char xread_char(int fd);
415// Read one line a-la fgets. Uses one read(), works only on seekable streams
416extern char *reads(int fd, char *buf, size_t count);
417// Read one line a-la fgets. Reads byte-by-byte.
418// Useful when it is important to not read ahead.
419extern char *xmalloc_reads(int fd, char *pfx);
420extern ssize_t read_close(int fd, void *buf, size_t count);
421extern ssize_t open_read_close(const char *filename, void *buf, size_t count);
422extern void *xmalloc_open_read_close(const char *filename, size_t *sizep);
423
424extern ssize_t safe_write(int fd, const void *buf, size_t count);
425extern ssize_t full_write(int fd, const void *buf, size_t count);
426extern void xwrite(int fd, const void *buf, size_t count);
427
428/* Reads and prints to stdout till eof, then closes FILE. Exits on error: */
429extern void xprint_and_close_file(FILE *file);
430extern char *xmalloc_fgets(FILE *file);
431/* Read up to (and including) TERMINATING_STRING: */
432extern char *xmalloc_fgets_str(FILE *file, const char *terminating_string);
433/* Chops off '\n' from the end, unlike fgets: */
434extern char *xmalloc_getline(FILE *file);
435extern char *bb_get_chunk_from_file(FILE *file, int *end);
436extern void die_if_ferror(FILE *file, const char *msg);
437extern void die_if_ferror_stdout(void);
438extern void xfflush_stdout(void);
439extern void fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN;
440extern int fclose_if_not_stdin(FILE *file);
441extern FILE *xfopen(const char *filename, const char *mode);
442/* Prints warning to stderr and returns NULL on failure: */
443extern FILE *fopen_or_warn(const char *filename, const char *mode);
444/* "Opens" stdin if filename is special, else just opens file: */
445extern FILE *fopen_or_warn_stdin(const char *filename);
446
447/* Convert each alpha char in str to lower-case */
448extern char* str_tolower(char *str);
449
450char *utoa(unsigned n);
451char *itoa(int n);
452/* Returns a pointer past the formatted number, does NOT null-terminate */
453char *utoa_to_buf(unsigned n, char *buf, unsigned buflen);
454char *itoa_to_buf(int n, char *buf, unsigned buflen);
455void smart_ulltoa5(unsigned long long ul, char buf[5]);
456//TODO: provide pointer to buf (avoid statics)?
457const char *make_human_readable_str(unsigned long long size,
458        unsigned long block_size, unsigned long display_unit);
459/* Put a string of hex bytes ("1b2e66fe"...), return advanced pointer */
460char *bin2hex(char *buf, const char *cp, int count);
461
462/* Last element is marked by mult == 0 */
463struct suffix_mult {
464    char suffix[4];
465    unsigned mult;
466};
467#include "xatonum.h"
468/* Specialized: */
469/* Using xatoi() instead of naive atoi() is not always convenient -
470 * in many places people want *non-negative* values, but store them
471 * in signed int. Therefore we need this one:
472 * dies if input is not in [0, INT_MAX] range. Also will reject '-0' etc */
473int xatoi_u(const char *numstr);
474/* Useful for reading port numbers */
475uint16_t xatou16(const char *numstr);
476
477
478/* These parse entries in /etc/passwd and /etc/group.  This is desirable
479 * for BusyBox since we want to avoid using the glibc NSS stuff, which
480 * increases target size and is often not needed on embedded systems.  */
481long xuname2uid(const char *name);
482long xgroup2gid(const char *name);
483/* wrapper: allows string to contain numeric uid or gid */
484unsigned long get_ug_id(const char *s, long (*xname2id)(const char *));
485/* from chpst. Does not die, returns 0 on failure */
486struct bb_uidgid_t {
487    uid_t uid;
488    gid_t gid;
489};
490/* always sets uid and gid */
491int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok);
492/* chown-like handling of "user[:[group]" */
493void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group);
494/* bb_getpwuid, bb_getgrgid:
495 * bb_getXXXid(buf, bufsz, id) - copy user/group name or id
496 *              as a string to buf, return user/group name or NULL
497 * bb_getXXXid(NULL, 0, id) - return user/group name or NULL
498 * bb_getXXXid(NULL, -1, id) - return user/group name or exit
499*/
500char *bb_getpwuid(char *name, int bufsize, long uid);
501char *bb_getgrgid(char *group, int bufsize, long gid);
502/* versions which cache results (useful for ps, ls etc) */
503const char* get_cached_username(uid_t uid);
504const char* get_cached_groupname(gid_t gid);
505void clear_username_cache(void);
506/* internally usernames are saved in fixed-sized char[] buffers */
507enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
508
509
510struct bb_applet;
511int execable_file(const char *name);
512char *find_execable(const char *filename);
513int exists_execable(const char *filename);
514
515#if ENABLE_FEATURE_PREFER_APPLETS
516int bb_execvp(const char *file, char *const argv[]);
517#define BB_EXECVP(prog,cmd) bb_execvp(prog,cmd)
518#define BB_EXECLP(prog,cmd,...) \
519    execlp((find_applet_by_name(prog)) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
520        cmd, __VA_ARGS__)
521#else
522#define BB_EXECVP(prog,cmd)     execvp(prog,cmd)
523#define BB_EXECLP(prog,cmd,...) execlp(prog,cmd, __VA_ARGS__)
524#endif
525
526/* NOMMU friendy fork+exec */
527pid_t spawn(char **argv);
528pid_t xspawn(char **argv);
529
530/* Unlike waitpid, waits ONLY for one process,
531 * It's safe to pass negative 'pids' from failed [v]fork -
532 * wait4pid will return -1 (and will not clobber [v]fork's errno).
533 * IOW: rc = wait4pid(spawn(argv));
534 *      if (rc < 0) bb_perror_msg("%s", argv[0]);
535 *      if (rc > 0) bb_error_msg("exit code: %d", rc);
536 */
537int wait4pid(int pid);
538int wait_pid(int *wstat, int pid);
539int wait_nohang(int *wstat);
540#define wait_crashed(w) ((w) & 127)
541#define wait_exitcode(w) ((w) >> 8)
542#define wait_stopsig(w) ((w) >> 8)
543#define wait_stopped(w) (((w) & 127) == 127)
544/* wait4pid(spawn(argv)) + NOFORK/NOEXEC (if configured) */
545int spawn_and_wait(char **argv);
546struct nofork_save_area {
547    jmp_buf die_jmp;
548    const struct bb_applet *current_applet;
549    int xfunc_error_retval;
550    uint32_t option_mask32;
551    int die_sleep;
552    smallint saved;
553};
554void save_nofork_data(struct nofork_save_area *save);
555void restore_nofork_data(struct nofork_save_area *save);
556/* Does NOT check that applet is NOFORK, just blindly runs it */
557int run_nofork_applet(const struct bb_applet *a, char **argv);
558int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet *a, char **argv);
559
560/* Helpers for daemonization.
561 *
562 * bb_daemonize(flags) = daemonize, does not compile on NOMMU
563 *
564 * bb_daemonize_or_rexec(flags, argv) = daemonizes on MMU (and ignores argv),
565 *      rexec's itself on NOMMU with argv passed as command line.
566 * Thus bb_daemonize_or_rexec may cause your <applet>_main() to be re-executed
567 * from the start. (It will detect it and not reexec again second time).
568 * You have to audit carefully that you don't do something twice as a result
569 * (opening files/sockets, parsing config files etc...)!
570 *
571 * Both of the above will redirect fd 0,1,2 to /dev/null and drop ctty
572 * (will do setsid()).
573 *
574 * forkexit_or_rexec(argv) = bare-bones "fork + parent exits" on MMU,
575 *      "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid().
576 *      Currently used for openvt. On MMU ignores argv.
577 *
578 * Helper for network daemons in foreground mode:
579 *
580 * bb_sanitize_stdio() = make sure that fd 0,1,2 are opened by opening them
581 * to /dev/null if they are not.
582 */
583enum {
584    DAEMON_CHDIR_ROOT = 1,
585    DAEMON_DEVNULL_STDIO = 2,
586    DAEMON_CLOSE_EXTRA_FDS = 4,
587    DAEMON_ONLY_SANITIZE = 8, /* internal use */
588};
589#if BB_MMU
590  void forkexit_or_rexec(void);
591  enum { re_execed = 0 };
592# define forkexit_or_rexec(argv)            forkexit_or_rexec()
593# define bb_daemonize_or_rexec(flags, argv) bb_daemonize_or_rexec(flags)
594# define bb_daemonize(flags)                bb_daemonize_or_rexec(flags, bogus)
595#else
596  void re_exec(char **argv) ATTRIBUTE_NORETURN;
597  void forkexit_or_rexec(char **argv);
598  extern bool re_execed;
599# define fork()          BUG_fork_is_unavailable_on_nommu()
600# define daemon(a,b)     BUG_daemon_is_unavailable_on_nommu()
601# define bb_daemonize(a) BUG_bb_daemonize_is_unavailable_on_nommu()
602#endif
603void bb_daemonize_or_rexec(int flags, char **argv);
604void bb_sanitize_stdio(void);
605
606
607extern const char *opt_complementary;
608#if ENABLE_GETOPT_LONG
609#define No_argument "\0"
610#define Required_argument "\001"
611#define Optional_argument "\002"
612extern const char *applet_long_options;
613#endif
614extern uint32_t option_mask32;
615extern uint32_t getopt32(char **argv, const char *applet_opts, ...);
616
617
618typedef struct llist_t {
619    char *data;
620    struct llist_t *link;
621} llist_t;
622void llist_add_to(llist_t **old_head, void *data);
623void llist_add_to_end(llist_t **list_head, void *data);
624void *llist_pop(llist_t **elm);
625void llist_unlink(llist_t **head, llist_t *elm);
626void llist_free(llist_t *elm, void (*freeit)(void *data));
627llist_t *llist_rev(llist_t *list);
628/* BTW, surprisingly, changing API to
629 *   llist_t *llist_add_to(llist_t *old_head, void *data)
630 * etc does not result in smaller code... */
631
632/* start_stop_daemon and udhcpc are special - they want
633 * to create pidfiles regardless of FEATURE_PIDFILE */
634#if ENABLE_FEATURE_PIDFILE || defined(WANT_PIDFILE)
635/* True only if we created pidfile which is *file*, not /dev/null etc */
636extern smallint wrote_pidfile;
637void write_pidfile(const char *path);
638#define remove_pidfile(path) do { if (wrote_pidfile) unlink(path); } while (0)
639#else
640enum { wrote_pidfile = 0 };
641#define write_pidfile(path)  ((void)0)
642#define remove_pidfile(path) ((void)0)
643#endif
644
645enum {
646    LOGMODE_NONE = 0,
647    LOGMODE_STDIO = (1 << 0),
648    LOGMODE_SYSLOG = (1 << 1) * ENABLE_FEATURE_SYSLOG,
649    LOGMODE_BOTH = LOGMODE_SYSLOG + LOGMODE_STDIO,
650};
651extern const char *msg_eol;
652extern smallint logmode;
653extern int die_sleep;
654extern int xfunc_error_retval;
655extern jmp_buf die_jmp;
656extern void xfunc_die(void) ATTRIBUTE_NORETURN;
657extern void bb_show_usage(void) ATTRIBUTE_NORETURN ATTRIBUTE_EXTERNALLY_VISIBLE;
658extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
659extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
660extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
661extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
662extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
663extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
664extern void bb_perror_nomsg_and_die(void) ATTRIBUTE_NORETURN;
665extern void bb_perror_nomsg(void);
666extern void bb_info_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
667extern void bb_verror_msg(const char *s, va_list p, const char *strerr);
668
669
670/* applets which are useful from another applets */
671int bb_cat(char** argv);
672int bb_echo(char** argv);
673int test_main(int argc, char** argv);
674int kill_main(int argc, char **argv);
675#if ENABLE_ROUTE
676void bb_displayroutes(int noresolve, int netstatfmt);
677#endif
678int chown_main(int argc, char **argv);
679#if ENABLE_GUNZIP
680int gunzip_main(int argc, char **argv);
681#endif
682int bbunpack(char **argv,
683    char* (*make_new_name)(char *filename),
684    USE_DESKTOP(long long) int (*unpacker)(void)
685);
686
687
688/* Networking */
689int create_icmp_socket(void);
690int create_icmp6_socket(void);
691/* interface.c */
692/* This structure defines protocol families and their handlers. */
693struct aftype {
694    const char *name;
695    const char *title;
696    int af;
697    int alen;
698    char *(*print) (unsigned char *);
699    const char *(*sprint) (struct sockaddr *, int numeric);
700    int (*input) (/*int type,*/ const char *bufp, struct sockaddr *);
701    void (*herror) (char *text);
702    int (*rprint) (int options);
703    int (*rinput) (int typ, int ext, char **argv);
704
705    /* may modify src */
706    int (*getmask) (char *src, struct sockaddr * mask, char *name);
707};
708/* This structure defines hardware protocols and their handlers. */
709struct hwtype {
710    const char *name;
711    const char *title;
712    int type;
713    int alen;
714    char *(*print) (unsigned char *);
715    int (*input) (const char *, struct sockaddr *);
716    int (*activate) (int fd);
717    int suppress_null_addr;
718};
719extern smallint interface_opt_a;
720int display_interfaces(char *ifname);
721const struct aftype *get_aftype(const char *name);
722const struct hwtype *get_hwtype(const char *name);
723const struct hwtype *get_hwntype(int type);
724
725
726#ifndef BUILD_INDIVIDUAL
727extern const struct bb_applet *find_applet_by_name(const char *name);
728/* Returns only if applet is not found. */
729extern void run_applet_and_exit(const char *name, char **argv);
730extern void run_current_applet_and_exit(char **argv) ATTRIBUTE_NORETURN;
731#endif
732
733extern int match_fstype(const struct mntent *mt, const char *fstypes);
734extern struct mntent *find_mount_point(const char *name, const char *table);
735extern void erase_mtab(const char * name);
736extern unsigned int tty_baud_to_value(speed_t speed);
737extern speed_t tty_value_to_baud(unsigned int value);
738extern void bb_warn_ignoring_args(int n);
739
740extern int get_linux_version_code(void);
741
742extern char *query_loop(const char *device);
743extern int del_loop(const char *device);
744/* If *devname is not NULL, use that name, otherwise try to find free one,
745 * malloc and return it in *devname.
746 * return value: 1: read-only loopdev was setup, 0: rw, < 0: error */
747extern int set_loop(char **devname, const char *file, unsigned long long offset);
748
749
750//TODO: pass buf pointer or return allocated buf (avoid statics)?
751char *bb_askpass(int timeout, const char * prompt);
752int bb_ask_confirmation(void);
753int klogctl(int type, char * b, int len);
754
755extern int bb_parse_mode(const char* s, mode_t* theMode);
756
757char *concat_path_file(const char *path, const char *filename);
758char *concat_subpath_file(const char *path, const char *filename);
759const char *bb_basename(const char *name);
760/* NB: can violate const-ness (similarly to strchr) */
761char *last_char_is(const char *s, int c);
762
763
764USE_DESKTOP(long long) int uncompress(int fd_in, int fd_out);
765int inflate(int in, int out);
766
767
768int bb_make_directory(char *path, long mode, int flags);
769
770int get_signum(const char *name);
771const char *get_signame(int number);
772
773char *bb_simplify_path(const char *path);
774
775#define FAIL_DELAY 3
776extern void bb_do_delay(int seconds);
777extern void change_identity(const struct passwd *pw);
778extern const char *change_identity_e2str(const struct passwd *pw);
779extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args) ATTRIBUTE_NORETURN;
780#if ENABLE_SELINUX
781extern void renew_current_security_context(void);
782extern void set_current_security_context(security_context_t sid);
783extern context_t set_security_context_component(security_context_t cur_context,
784                        char *user, char *role, char *type, char *range);
785extern void setfscreatecon_or_die(security_context_t scontext);
786#endif
787extern void selinux_or_die(void);
788extern int restricted_shell(const char *shell);
789extern void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw);
790extern int correct_password(const struct passwd *pw);
791/* Returns a ptr to static storage */
792extern char *pw_encrypt(const char *clear, const char *salt);
793extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
794extern int index_in_str_array(const char *const string_array[], const char *key);
795extern int index_in_strings(const char *strings, const char *key);
796extern int index_in_substr_array(const char *const string_array[], const char *key);
797extern int index_in_substrings(const char *strings, const char *key);
798extern void print_login_issue(const char *issue_file, const char *tty);
799extern void print_login_prompt(void);
800
801/* rnd is additional random input. New one is returned.
802 * Useful if you call crypt_make_salt many times in a row:
803 * rnd = crypt_make_salt(buf1, 4, 0);
804 * rnd = crypt_make_salt(buf2, 4, rnd);
805 * rnd = crypt_make_salt(buf3, 4, rnd);
806 * (otherwise we risk having same salt generated)
807 */
808extern int crypt_make_salt(char *p, int cnt, int rnd);
809
810/* Returns number of lines changed, or -1 on error */
811extern int update_passwd(const char *filename, const char *username,
812            const char *new_pw);
813
814/* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */
815int get_terminal_width_height(int fd, int *width, int *height);
816
817int ioctl_or_perror(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
818void ioctl_or_perror_and_die(int fd, int request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5)));
819#if ENABLE_IOCTL_HEX2STR_ERROR
820int bb_ioctl_or_warn(int fd, int request, void *argp, const char *ioctl_name);
821void bb_xioctl(int fd, int request, void *argp, const char *ioctl_name);
822#define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp,#request)
823#define xioctl(fd,request,argp)        bb_xioctl(fd,request,argp,#request)
824#else
825int bb_ioctl_or_warn(int fd, int request, void *argp);
826void bb_xioctl(int fd, int request, void *argp);
827#define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp)
828#define xioctl(fd,request,argp)        bb_xioctl(fd,request,argp)
829#endif
830
831char *is_in_ino_dev_hashtable(const struct stat *statbuf);
832void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
833void reset_ino_dev_hashtable(void);
834#ifdef __GLIBC__
835/* At least glibc has horrendously large inline for this, so wrap it */
836unsigned long long bb_makedev(unsigned int major, unsigned int minor);
837#undef makedev
838#define makedev(a,b) bb_makedev(a,b)
839#endif
840
841
842#if ENABLE_FEATURE_EDITING
843/* It's NOT just ENABLEd or disabled. It's a number: */
844#ifdef CONFIG_FEATURE_EDITING_HISTORY
845#define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
846#else
847#define MAX_HISTORY 0
848#endif
849typedef struct line_input_t {
850    int flags;
851    const char *path_lookup;
852#if MAX_HISTORY
853    int cnt_history;
854    int cur_history;
855    USE_FEATURE_EDITING_SAVEHISTORY(const char *hist_file;)
856    char *history[MAX_HISTORY + 1];
857#endif
858} line_input_t;
859enum {
860    DO_HISTORY = 1 * (MAX_HISTORY > 0),
861    SAVE_HISTORY = 2 * (MAX_HISTORY > 0) * ENABLE_FEATURE_EDITING_SAVEHISTORY,
862    TAB_COMPLETION = 4 * ENABLE_FEATURE_TAB_COMPLETION,
863    USERNAME_COMPLETION = 8 * ENABLE_FEATURE_USERNAME_COMPLETION,
864    VI_MODE = 0x10 * ENABLE_FEATURE_EDITING_VI,
865    WITH_PATH_LOOKUP = 0x20,
866    FOR_SHELL = DO_HISTORY | SAVE_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION,
867};
868line_input_t *new_line_input_t(int flags);
869int read_line_input(const char* prompt, char* command, int maxsize, line_input_t *state);
870#else
871int read_line_input(const char* prompt, char* command, int maxsize);
872#define read_line_input(prompt, command, maxsize, state) \
873    read_line_input(prompt, command, maxsize)
874#endif
875
876
877#ifndef COMM_LEN
878#ifdef TASK_COMM_LEN
879enum { COMM_LEN = TASK_COMM_LEN };
880#else
881/* synchronize with sizeof(task_struct.comm) in /usr/include/linux/sched.h */
882enum { COMM_LEN = 16 };
883#endif
884#endif
885typedef struct {
886    DIR *dir;
887/* Fields are set to 0/NULL if failed to determine (or not requested) */
888    /*char *cmd;*/
889    char *argv0;
890    /*char *exe;*/
891    USE_SELINUX(char *context;)
892    /* Everything below must contain no ptrs to malloc'ed data:
893     * it is memset(0) for each process in procps_scan() */
894    unsigned vsz, rss; /* we round it to kbytes */
895    unsigned long stime, utime;
896    unsigned pid;
897    unsigned ppid;
898    unsigned pgid;
899    unsigned sid;
900    unsigned uid;
901    unsigned gid;
902    unsigned tty_major,tty_minor;
903    char state[4];
904    /* basename of executable in exec(2), read from /proc/N/stat
905     * (if executable is symlink or script, it is NOT replaced
906     * by link target or interpreter name) */
907    char comm[COMM_LEN];
908    /* user/group? - use passwd/group parsing functions */
909} procps_status_t;
910enum {
911    PSSCAN_PID      = 1 << 0,
912    PSSCAN_PPID     = 1 << 1,
913    PSSCAN_PGID     = 1 << 2,
914    PSSCAN_SID      = 1 << 3,
915    PSSCAN_UIDGID   = 1 << 4,
916    PSSCAN_COMM     = 1 << 5,
917    /* PSSCAN_CMD      = 1 << 6, - use read_cmdline instead */
918    PSSCAN_ARGV0    = 1 << 7,
919    /* PSSCAN_EXE      = 1 << 8, - not implemented */
920    PSSCAN_STATE    = 1 << 9,
921    PSSCAN_VSZ      = 1 << 10,
922    PSSCAN_RSS      = 1 << 11,
923    PSSCAN_STIME    = 1 << 12,
924    PSSCAN_UTIME    = 1 << 13,
925    PSSCAN_TTY      = 1 << 14,
926    USE_SELINUX(PSSCAN_CONTEXT  = 1 << 15,)
927    /* These are all retrieved from proc/NN/stat in one go: */
928    PSSCAN_STAT     = PSSCAN_PPID | PSSCAN_PGID | PSSCAN_SID
929                    | PSSCAN_COMM | PSSCAN_STATE
930                    | PSSCAN_VSZ | PSSCAN_RSS
931            | PSSCAN_STIME | PSSCAN_UTIME
932            | PSSCAN_TTY,
933};
934procps_status_t* alloc_procps_scan(int flags);
935void free_procps_scan(procps_status_t* sp);
936procps_status_t* procps_scan(procps_status_t* sp, int flags);
937/* Format cmdline (up to col chars) into char buf[col+1] */
938/* Puts [comm] if cmdline is empty (-> process is a kernel thread) */
939void read_cmdline(char *buf, int col, unsigned pid, const char *comm);
940pid_t *find_pid_by_name(const char* procName);
941pid_t *pidlist_reverse(pid_t *pidList);
942
943
944extern const char bb_uuenc_tbl_base64[];
945extern const char bb_uuenc_tbl_std[];
946void bb_uuencode(char *store, const void *s, int length, const char *tbl);
947
948typedef struct sha1_ctx_t {
949    uint32_t count[2];
950    uint32_t hash[5];
951    uint32_t wbuf[16];
952} sha1_ctx_t;
953void sha1_begin(sha1_ctx_t *ctx);
954void sha1_hash(const void *data, size_t length, sha1_ctx_t *ctx);
955void *sha1_end(void *resbuf, sha1_ctx_t *ctx);
956
957typedef struct md5_ctx_t {
958    uint32_t A;
959    uint32_t B;
960    uint32_t C;
961    uint32_t D;
962    uint64_t total;
963    uint32_t buflen;
964    char buffer[128];
965} md5_ctx_t;
966void md5_begin(md5_ctx_t *ctx);
967void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
968void *md5_end(void *resbuf, md5_ctx_t *ctx);
969
970uint32_t *crc32_filltable(uint32_t *tbl256, int endian);
971
972
973enum {  /* DO NOT CHANGE THESE VALUES!  cp.c, mv.c, install.c depend on them. */
974    FILEUTILS_PRESERVE_STATUS = 1,
975    FILEUTILS_DEREFERENCE = 2,
976    FILEUTILS_RECUR = 4,
977    FILEUTILS_FORCE = 8,
978    FILEUTILS_INTERACTIVE = 0x10,
979    FILEUTILS_MAKE_HARDLINK = 0x20,
980    FILEUTILS_MAKE_SOFTLINK = 0x40,
981#if ENABLE_SELINUX
982    FILEUTILS_PRESERVE_SECURITY_CONTEXT = 0x80,
983    FILEUTILS_SET_SECURITY_CONTEXT = 0x100
984#endif
985};
986
987#define FILEUTILS_CP_OPTSTR "pdRfils" USE_SELINUX("c")
988extern const struct bb_applet *current_applet;
989extern const char *applet_name;
990/* "BusyBox vN.N.N (timestamp or extra_vestion)" */
991extern const char bb_banner[];
992extern const char bb_msg_memory_exhausted[];
993extern const char bb_msg_invalid_date[];
994extern const char bb_msg_read_error[];
995extern const char bb_msg_write_error[];
996extern const char bb_msg_unknown[];
997extern const char bb_msg_can_not_create_raw_socket[];
998extern const char bb_msg_perm_denied_are_you_root[];
999extern const char bb_msg_requires_arg[];
1000extern const char bb_msg_invalid_arg[];
1001extern const char bb_msg_standard_input[];
1002extern const char bb_msg_standard_output[];
1003
1004extern const char bb_str_default[];
1005/* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */
1006extern const char bb_hexdigits_upcase[];
1007
1008extern const char bb_path_mtab_file[];
1009extern const char bb_path_passwd_file[];
1010extern const char bb_path_shadow_file[];
1011extern const char bb_path_gshadow_file[];
1012extern const char bb_path_group_file[];
1013extern const char bb_path_motd_file[];
1014extern const char bb_path_wtmp_file[];
1015extern const char bb_dev_null[];
1016extern const char bb_busybox_exec_path[];
1017/* util-linux manpage says /sbin:/bin:/usr/sbin:/usr/bin,
1018 * but I want to save a few bytes here */
1019extern const char bb_PATH_root_path[]; /* "PATH=/sbin:/usr/sbin:/bin:/usr/bin" */
1020#define bb_default_root_path (bb_PATH_root_path + sizeof("PATH"))
1021#define bb_default_path      (bb_PATH_root_path + sizeof("PATH=/sbin:/usr/sbin"))
1022
1023extern const int const_int_0;
1024extern const int const_int_1;
1025
1026
1027#ifndef BUFSIZ
1028#define BUFSIZ 4096
1029#endif
1030/* Providing hard guarantee on minimum size (think of BUFSIZ == 128) */
1031enum { COMMON_BUFSIZE = (BUFSIZ >= 256*sizeof(void*) ? BUFSIZ+1 : 256*sizeof(void*)) };
1032extern char bb_common_bufsiz1[COMMON_BUFSIZE];
1033/* This struct is deliberately not defined. */
1034/* See docs/keep_data_small.txt */
1035struct globals;
1036/* '*const' ptr makes gcc optimize code much better.
1037 * Magic prevents ptr_to_globals from going into rodata.
1038 * If you want to assign a value, use PTR_TO_GLOBALS = xxx */
1039extern struct globals *const ptr_to_globals;
1040#define PTR_TO_GLOBALS (*(struct globals**)&ptr_to_globals)
1041
1042
1043/* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don't use it,
1044 * use bb_default_login_shell and following defines.
1045 * If you change LIBBB_DEFAULT_LOGIN_SHELL,
1046 * don't forget to change increment constant. */
1047#define LIBBB_DEFAULT_LOGIN_SHELL      "-/bin/sh"
1048extern const char bb_default_login_shell[];
1049/* "/bin/sh" */
1050#define DEFAULT_SHELL     (bb_default_login_shell+1)
1051/* "sh" */
1052#define DEFAULT_SHELL_SHORT_NAME     (bb_default_login_shell+6)
1053
1054
1055#if ENABLE_FEATURE_DEVFS
1056# define CURRENT_VC "/dev/vc/0"
1057# define VC_1 "/dev/vc/1"
1058# define VC_2 "/dev/vc/2"
1059# define VC_3 "/dev/vc/3"
1060# define VC_4 "/dev/vc/4"
1061# define VC_5 "/dev/vc/5"
1062#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
1063/* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their
1064   respective serial ports .. as such, we can't use the common device paths for
1065   these. -- PFM */
1066#  define SC_0 "/dev/ttsc/0"
1067#  define SC_1 "/dev/ttsc/1"
1068#  define SC_FORMAT "/dev/ttsc/%d"
1069#else
1070#  define SC_0 "/dev/tts/0"
1071#  define SC_1 "/dev/tts/1"
1072#  define SC_FORMAT "/dev/tts/%d"
1073#endif
1074# define VC_FORMAT "/dev/vc/%d"
1075# define LOOP_FORMAT "/dev/loop/%d"
1076# define LOOP_NAMESIZE (sizeof("/dev/loop/") + sizeof(int)*3 + 1)
1077# define LOOP_NAME "/dev/loop/"
1078# define FB_0 "/dev/fb/0"
1079#else
1080# define CURRENT_VC "/dev/tty0"
1081# define VC_1 "/dev/tty1"
1082# define VC_2 "/dev/tty2"
1083# define VC_3 "/dev/tty3"
1084# define VC_4 "/dev/tty4"
1085# define VC_5 "/dev/tty5"
1086#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
1087#  define SC_0 "/dev/ttySC0"
1088#  define SC_1 "/dev/ttySC1"
1089#  define SC_FORMAT "/dev/ttySC%d"
1090#else
1091#  define SC_0 "/dev/ttyS0"
1092#  define SC_1 "/dev/ttyS1"
1093#  define SC_FORMAT "/dev/ttyS%d"
1094#endif
1095# define VC_FORMAT "/dev/tty%d"
1096# define LOOP_FORMAT "/dev/loop%d"
1097# define LOOP_NAMESIZE (sizeof("/dev/loop") + sizeof(int)*3 + 1)
1098# define LOOP_NAME "/dev/loop"
1099# define FB_0 "/dev/fb0"
1100#endif
1101
1102/* The following devices are the same on devfs and non-devfs systems.  */
1103#define CURRENT_TTY "/dev/tty"
1104#define DEV_CONSOLE "/dev/console"
1105
1106
1107#ifndef RB_POWER_OFF
1108/* Stop system and switch power off if possible.  */
1109#define RB_POWER_OFF   0x4321fedc
1110#endif
1111
1112/* Make sure we call functions instead of macros.  */
1113#undef isalnum
1114#undef isalpha
1115#undef isascii
1116#undef isblank
1117#undef iscntrl
1118#undef isgraph
1119#undef islower
1120#undef isprint
1121#undef ispunct
1122#undef isspace
1123#undef isupper
1124#undef isxdigit
1125
1126/* This one is more efficient - we save ~400 bytes */
1127#undef isdigit
1128#define isdigit(a) ((unsigned)((a) - '0') <= 9)
1129
1130
1131#ifdef DMALLOC
1132#include <dmalloc.h>
1133#endif
1134
1135
1136#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
1137
1138#endif /* __LIBBUSYBOX_H__ */
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