source: MondoRescue/trunk/mindi-busybox/include/libbb.h@ 954

Last change on this file since 954 was 821, checked in by Bruno Cornec, 18 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)
File size: 19.0 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Busybox main internal header file
4 *
5 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
6 *
7 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
8 * Permission has been granted to redistribute this code under the GPL.
9 *
10 */
11#ifndef __LIBBUSYBOX_H__
12#define __LIBBUSYBOX_H__ 1
13
14#include "bb_config.h"
15#include "platform.h"
16
17#include <ctype.h>
18#include <dirent.h>
19#include <fcntl.h>
20#include <inttypes.h>
21#include <netdb.h>
22#include <stdio.h>
23#include <stdlib.h>
24#include <stdarg.h>
25#include <string.h>
26#include <strings.h>
27#include <sys/socket.h>
28#include <sys/stat.h>
29#include <sys/time.h>
30#include <sys/types.h>
31#include <termios.h>
32#include <unistd.h>
33
34#ifdef CONFIG_SELINUX
35#include <selinux/selinux.h>
36#endif
37
38#include "pwd_.h"
39#include "grp_.h"
40#ifdef CONFIG_FEATURE_SHADOWPASSWDS
41#include "shadow_.h"
42#endif
43#ifdef CONFIG_FEATURE_SHA1_PASSWORDS
44# include "sha1.h"
45#endif
46
47/* Try to pull in PATH_MAX */
48#include <limits.h>
49#include <sys/param.h>
50#ifndef PATH_MAX
51#define PATH_MAX 256
52#endif
53
54#ifdef DMALLOC
55#include <dmalloc.h>
56#endif
57
58/* Some useful definitions */
59#undef FALSE
60#define FALSE ((int) 0)
61#undef TRUE
62#define TRUE ((int) 1)
63#undef SKIP
64#define SKIP ((int) 2)
65
66/* for mtab.c */
67#define MTAB_GETMOUNTPT '1'
68#define MTAB_GETDEVICE '2'
69
70#define BUF_SIZE 8192
71#define EXPAND_ALLOC 1024
72
73/* Macros for min/max. */
74#ifndef MIN
75#define MIN(a,b) (((a)<(b))?(a):(b))
76#endif
77
78#ifndef MAX
79#define MAX(a,b) (((a)>(b))?(a):(b))
80#endif
81
82/* buffer allocation schemes */
83#ifdef CONFIG_FEATURE_BUFFERS_GO_ON_STACK
84#define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len]
85#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len]
86#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
87#else
88#ifdef CONFIG_FEATURE_BUFFERS_GO_IN_BSS
89#define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len]
90#define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len]
91#define RELEASE_CONFIG_BUFFER(buffer) ((void)0)
92#else
93#define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer=xmalloc(len)
94#define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len)
95#define RELEASE_CONFIG_BUFFER(buffer) free (buffer)
96#endif
97#endif
98
99
100typedef struct llist_s {
101 char *data;
102 struct llist_s *link;
103} llist_t;
104extern void llist_add_to(llist_t **old_head, void *data);
105extern void llist_add_to_end(llist_t **list_head, void *data);
106extern void *llist_pop(llist_t **elm);
107extern void llist_free(llist_t *elm, void (*freeit)(void *data));
108
109
110extern void bb_show_usage(void) ATTRIBUTE_NORETURN ATTRIBUTE_EXTERNALLY_VISIBLE;
111extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
112extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
113extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
114extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
115extern void bb_vherror_msg(const char *s, va_list p);
116extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
117extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
118
119extern void bb_perror_nomsg_and_die(void) ATTRIBUTE_NORETURN;
120extern void bb_perror_nomsg(void);
121
122/* These two are used internally -- you shouldn't need to use them */
123extern void bb_verror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0)));
124extern void bb_vperror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0)));
125
126extern int bb_echo(int argc, char** argv);
127extern int bb_test(int argc, char** argv);
128
129extern const char *bb_mode_string(int mode);
130extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
131extern DIR *bb_opendir(const char *path);
132extern DIR *bb_xopendir(const char *path);
133
134extern int remove_file(const char *path, int flags);
135extern int copy_file(const char *source, const char *dest, int flags);
136extern ssize_t safe_read(int fd, void *buf, size_t count);
137extern ssize_t bb_full_read(int fd, void *buf, size_t len);
138extern ssize_t safe_write(int fd, const void *buf, size_t count);
139extern ssize_t bb_full_write(int fd, const void *buf, size_t len);
140extern int recursive_action(const char *fileName, int recurse,
141 int followLinks, int depthFirst,
142 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
143 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
144 void* userData);
145
146extern int bb_parse_mode( const char* s, mode_t* theMode);
147extern long bb_xgetlarg(const char *arg, int base, long lower, long upper);
148
149extern unsigned int tty_baud_to_value(speed_t speed);
150extern speed_t tty_value_to_baud(unsigned int value);
151
152extern int get_linux_version_code(void);
153
154extern int get_console_fd(void);
155extern struct mntent *find_mount_point(const char *name, const char *table);
156extern void erase_mtab(const char * name);
157extern long *find_pid_by_name( const char* pidName);
158extern long *pidlist_reverse(long *pidList);
159extern char *find_block_device(char *path);
160extern char *bb_get_line_from_file(FILE *file);
161extern char *bb_get_chomped_line_from_file(FILE *file);
162extern char *bb_get_chunk_from_file(FILE *file, int *end);
163extern int bb_copyfd_size(int fd1, int fd2, const off_t size);
164extern int bb_copyfd_eof(int fd1, int fd2);
165extern void bb_xprint_and_close_file(FILE *file);
166extern int bb_xprint_file_by_name(const char *filename);
167extern char bb_process_escape_sequence(const char **ptr);
168extern char *bb_get_last_path_component(char *path);
169extern FILE *bb_wfopen(const char *path, const char *mode);
170extern FILE *bb_wfopen_input(const char *filename);
171extern FILE *bb_xfopen(const char *path, const char *mode);
172
173extern int bb_fclose_nonstdin(FILE *f);
174extern void bb_fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN;
175
176extern void xstat(const char *filename, struct stat *buf);
177extern int bb_xsocket(int domain, int type, int protocol);
178extern pid_t bb_spawn(char **argv);
179extern pid_t bb_xspawn(char **argv);
180extern int wait4pid(int pid);
181extern void bb_xdaemon(int nochdir, int noclose);
182extern void bb_xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
183extern void bb_xlisten(int s, int backlog);
184extern void bb_xchdir(const char *path);
185extern void xsetgid(gid_t gid);
186extern void xsetuid(uid_t uid);
187
188#define BB_GETOPT_ERROR 0x80000000UL
189extern const char *bb_opt_complementally;
190extern const struct option *bb_applet_long_options;
191extern unsigned long bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...);
192
193extern int bb_vfprintf(FILE * __restrict stream, const char * __restrict format,
194 va_list arg) __attribute__ ((format (printf, 2, 0)));
195extern int bb_vprintf(const char * __restrict format, va_list arg)
196 __attribute__ ((format (printf, 1, 0)));
197extern int bb_fprintf(FILE * __restrict stream, const char * __restrict format, ...)
198 __attribute__ ((format (printf, 2, 3)));
199extern int bb_printf(const char * __restrict format, ...)
200 __attribute__ ((format (printf, 1, 2)));
201
202//#warning rename to xferror_filename?
203extern void bb_xferror(FILE *fp, const char *fn);
204extern void bb_xferror_stdout(void);
205extern void bb_xfflush_stdout(void);
206
207extern void bb_warn_ignoring_args(int n);
208
209extern void chomp(char *s);
210extern void trim(char *s);
211extern char *skip_whitespace(const char *);
212
213extern struct BB_applet *find_applet_by_name(const char *name);
214void run_applet_by_name(const char *name, int argc, char **argv);
215
216/* dmalloc will redefine these to it's own implementation. It is safe
217 * to have the prototypes here unconditionally. */
218extern void *xmalloc(size_t size);
219extern void *xrealloc(void *old, size_t size);
220extern void *xzalloc(size_t size);
221extern void *xcalloc(size_t nmemb, size_t size);
222
223extern char *bb_xstrdup (const char *s);
224extern char *bb_xstrndup (const char *s, int n);
225extern char *safe_strncpy(char *dst, const char *src, size_t size);
226extern int safe_strtoi(char *arg, int* value);
227extern int safe_strtod(char *arg, double* value);
228extern int safe_strtol(char *arg, long* value);
229extern int safe_strtoul(char *arg, unsigned long* value);
230
231struct suffix_mult {
232 const char *suffix;
233 unsigned int mult;
234};
235
236extern unsigned long bb_xgetularg_bnd_sfx(const char *arg, int base,
237 unsigned long lower,
238 unsigned long upper,
239 const struct suffix_mult *suffixes);
240extern unsigned long bb_xgetularg_bnd(const char *arg, int base,
241 unsigned long lower,
242 unsigned long upper);
243extern unsigned long bb_xgetularg10_bnd(const char *arg,
244 unsigned long lower,
245 unsigned long upper);
246extern unsigned long bb_xgetularg10(const char *arg);
247
248extern long bb_xgetlarg_bnd_sfx(const char *arg, int base,
249 long lower,
250 long upper,
251 const struct suffix_mult *suffixes);
252extern long bb_xgetlarg10_sfx(const char *arg, const struct suffix_mult *suffixes);
253
254
255//#warning pitchable now?
256extern unsigned long bb_xparse_number(const char *numstr,
257 const struct suffix_mult *suffixes);
258
259
260/* These parse entries in /etc/passwd and /etc/group. This is desirable
261 * for BusyBox since we want to avoid using the glibc NSS stuff, which
262 * increases target size and is often not needed on embedded systems. */
263extern long bb_xgetpwnam(const char *name);
264extern long bb_xgetgrnam(const char *name);
265extern char * bb_getug(char *buffer, char *idname, long id, int bufsize, char prefix);
266extern char * bb_getpwuid(char *name, long uid, int bufsize);
267extern char * bb_getgrgid(char *group, long gid, int bufsize);
268extern char *bb_askpass(int timeout, const char * prompt);
269
270extern int device_open(const char *device, int mode);
271
272extern char *query_loop(const char *device);
273extern int del_loop(const char *device);
274extern int set_loop(char **device, const char *file, int offset);
275
276#if (__GLIBC__ < 2)
277extern int vdprintf(int d, const char *format, va_list ap);
278#endif
279
280int nfsmount(const char *spec, const char *node, int *flags,
281 char **mount_opts, int running_bg);
282
283/* Include our own copy of struct sysinfo to avoid binary compatibility
284 * problems with Linux 2.4, which changed things. Grumble, grumble. */
285struct sysinfo {
286 long uptime; /* Seconds since boot */
287 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
288 unsigned long totalram; /* Total usable main memory size */
289 unsigned long freeram; /* Available memory size */
290 unsigned long sharedram; /* Amount of shared memory */
291 unsigned long bufferram; /* Memory used by buffers */
292 unsigned long totalswap; /* Total swap space size */
293 unsigned long freeswap; /* swap space still available */
294 unsigned short procs; /* Number of current processes */
295 unsigned short pad; /* Padding needed for m68k */
296 unsigned long totalhigh; /* Total high memory size */
297 unsigned long freehigh; /* Available high memory size */
298 unsigned int mem_unit; /* Memory unit size in bytes */
299 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
300};
301extern int sysinfo (struct sysinfo* info);
302
303enum {
304 KILOBYTE = 1024,
305 MEGABYTE = (KILOBYTE*1024),
306 GIGABYTE = (MEGABYTE*1024)
307};
308const char *make_human_readable_str(unsigned long long size,
309 unsigned long block_size, unsigned long display_unit);
310
311int bb_ask_confirmation(void);
312int klogctl(int type, char * b, int len);
313
314char *xgetcwd(char *cwd);
315char *xreadlink(const char *path);
316char *concat_path_file(const char *path, const char *filename);
317char *concat_subpath_file(const char *path, const char *filename);
318char *last_char_is(const char *s, int c);
319
320int read_package_field(const char *package_buffer, char **field_name, char **field_value);
321//#warning yuk!
322char *fgets_str(FILE *file, const char *terminating_string);
323
324extern int uncompress(int fd_in, int fd_out);
325extern int inflate(int in, int out);
326
327extern struct hostent *xgethostbyname(const char *name);
328extern struct hostent *xgethostbyname2(const char *name, int af);
329extern int create_icmp_socket(void);
330extern int create_icmp6_socket(void);
331extern int xconnect(struct sockaddr_in *s_addr);
332extern unsigned short bb_lookup_port(const char *port, const char *protocol, unsigned short default_port);
333extern void bb_lookup_host(struct sockaddr_in *s_in, const char *host);
334
335//#warning wrap this?
336char *dirname (char *path);
337
338int bb_make_directory (char *path, long mode, int flags);
339
340const char *u_signal_names(const char *str_sig, int *signo, int startnum);
341char *bb_simplify_path(const char *path);
342
343enum { /* DO NOT CHANGE THESE VALUES! cp.c depends on them. */
344 FILEUTILS_PRESERVE_STATUS = 1,
345 FILEUTILS_DEREFERENCE = 2,
346 FILEUTILS_RECUR = 4,
347 FILEUTILS_FORCE = 8,
348 FILEUTILS_INTERACTIVE = 16
349};
350
351extern const char *bb_applet_name;
352
353extern const char * const bb_msg_full_version;
354extern const char * const bb_msg_memory_exhausted;
355extern const char * const bb_msg_invalid_date;
356extern const char * const bb_msg_io_error;
357extern const char * const bb_msg_read_error;
358extern const char * const bb_msg_write_error;
359extern const char * const bb_msg_name_longer_than_foo;
360extern const char * const bb_msg_unknown;
361extern const char * const bb_msg_can_not_create_raw_socket;
362extern const char * const bb_msg_perm_denied_are_you_root;
363extern const char * const bb_msg_requires_arg;
364extern const char * const bb_msg_invalid_arg;
365extern const char * const bb_msg_standard_input;
366extern const char * const bb_msg_standard_output;
367
368extern const char * const bb_path_nologin_file;
369extern const char * const bb_path_passwd_file;
370extern const char * const bb_path_shadow_file;
371extern const char * const bb_path_gshadow_file;
372extern const char * const bb_path_group_file;
373extern const char * const bb_path_securetty_file;
374extern const char * const bb_path_motd_file;
375extern const char * const bb_path_wtmp_file;
376extern const char * const bb_dev_null;
377
378#ifndef BUFSIZ
379#define BUFSIZ 4096
380#endif
381extern char bb_common_bufsiz1[BUFSIZ+1];
382
383/*
384 * You can change LIBBB_DEFAULT_LOGIN_SHELL, but don`t use,
385 * use bb_default_login_shell and next defines,
386 * if you LIBBB_DEFAULT_LOGIN_SHELL change,
387 * don`t lose change increment constant!
388 */
389#define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh"
390
391extern const char * const bb_default_login_shell;
392/* "/bin/sh" */
393#define DEFAULT_SHELL (bb_default_login_shell+1)
394/* "sh" */
395#define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
396
397
398extern const char bb_path_mtab_file[];
399
400extern int bb_default_error_retval;
401
402#ifdef CONFIG_FEATURE_DEVFS
403# define CURRENT_VC "/dev/vc/0"
404# define VC_1 "/dev/vc/1"
405# define VC_2 "/dev/vc/2"
406# define VC_3 "/dev/vc/3"
407# define VC_4 "/dev/vc/4"
408# define VC_5 "/dev/vc/5"
409#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
410/* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their
411 respective serial ports .. as such, we can't use the common device paths for
412 these. -- PFM */
413# define SC_0 "/dev/ttsc/0"
414# define SC_1 "/dev/ttsc/1"
415# define SC_FORMAT "/dev/ttsc/%d"
416#else
417# define SC_0 "/dev/tts/0"
418# define SC_1 "/dev/tts/1"
419# define SC_FORMAT "/dev/tts/%d"
420#endif
421# define VC_FORMAT "/dev/vc/%d"
422# define LOOP_FORMAT "/dev/loop/%d"
423# define FB_0 "/dev/fb/0"
424#else
425# define CURRENT_VC "/dev/tty0"
426# define VC_1 "/dev/tty1"
427# define VC_2 "/dev/tty2"
428# define VC_3 "/dev/tty3"
429# define VC_4 "/dev/tty4"
430# define VC_5 "/dev/tty5"
431#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
432# define SC_0 "/dev/ttySC0"
433# define SC_1 "/dev/ttySC1"
434# define SC_FORMAT "/dev/ttySC%d"
435#else
436# define SC_0 "/dev/ttyS0"
437# define SC_1 "/dev/ttyS1"
438# define SC_FORMAT "/dev/ttyS%d"
439#endif
440# define VC_FORMAT "/dev/tty%d"
441# define LOOP_FORMAT "/dev/loop%d"
442# define FB_0 "/dev/fb0"
443#endif
444
445//#warning put these in .o files
446
447/* The following devices are the same on devfs and non-devfs systems. */
448#define CURRENT_TTY "/dev/tty"
449#define CONSOLE_DEV "/dev/console"
450
451int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
452void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
453void reset_ino_dev_hashtable(void);
454
455char *bb_xasprintf(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
456
457#define FAIL_DELAY 3
458extern void bb_do_delay(int seconds);
459extern void change_identity ( const struct passwd *pw );
460extern const char *change_identity_e2str ( const struct passwd *pw );
461extern void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args);
462#ifdef CONFIG_SELINUX
463extern void renew_current_security_context(void);
464extern void set_current_security_context(security_context_t sid);
465#endif
466extern int run_parts(char **args, const unsigned char test_mode, char **env);
467extern int restricted_shell ( const char *shell );
468extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw );
469extern int correct_password ( const struct passwd *pw );
470extern char *pw_encrypt(const char *clear, const char *salt);
471extern struct spwd *pwd_to_spwd(const struct passwd *pw);
472extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
473
474extern int bb_xopen(const char *pathname, int flags);
475extern int bb_xopen3(const char *pathname, int flags, int mode);
476extern ssize_t bb_xread(int fd, void *buf, size_t count);
477extern void bb_xread_all(int fd, void *buf, size_t count);
478extern unsigned char bb_xread_char(int fd);
479
480#ifndef COMM_LEN
481#ifdef TASK_COMM_LEN
482#define COMM_LEN TASK_COMM_LEN
483#else
484/* synchronize with sizeof(task_struct.comm) in /usr/include/linux/sched.h */
485#define COMM_LEN 16
486#endif
487#endif
488typedef struct {
489 int pid;
490 char user[9];
491 char state[4];
492 unsigned long rss;
493 int ppid;
494#ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE
495 unsigned pcpu;
496 unsigned pscpu;
497 unsigned long stime, utime;
498#endif
499 char *cmd;
500
501 /* basename of executable file in call to exec(2),
502 size from kernel headers */
503 char short_cmd[COMM_LEN];
504} procps_status_t;
505
506extern procps_status_t * procps_scan(int save_user_arg0);
507extern int compare_string_array(const char * const string_array[], const char *key);
508
509extern int my_query_module(const char *name, int which, void **buf, size_t *bufsize, size_t *ret);
510
511extern void print_login_issue(const char *issue_file, const char *tty);
512extern void print_login_prompt(void);
513
514#ifdef BB_NOMMU
515extern void vfork_daemon(int nochdir, int noclose);
516extern void vfork_daemon_rexec(int nochdir, int noclose,
517 int argc, char **argv, char *foreground_opt);
518#endif
519
520extern int get_terminal_width_height(int fd, int *width, int *height);
521extern unsigned long get_ug_id(const char *s, long (*__bb_getxxnam)(const char *));
522
523typedef struct _sha1_ctx_t_ {
524 uint32_t count[2];
525 uint32_t hash[5];
526 uint32_t wbuf[16];
527} sha1_ctx_t;
528
529void sha1_begin(sha1_ctx_t *ctx);
530void sha1_hash(const void *data, size_t length, sha1_ctx_t *ctx);
531void *sha1_end(void *resbuf, sha1_ctx_t *ctx);
532
533typedef struct _md5_ctx_t_ {
534 uint32_t A;
535 uint32_t B;
536 uint32_t C;
537 uint32_t D;
538 uint64_t total;
539 uint32_t buflen;
540 char buffer[128];
541} md5_ctx_t;
542
543void md5_begin(md5_ctx_t *ctx);
544void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
545void *md5_end(void *resbuf, md5_ctx_t *ctx);
546
547extern uint32_t *bb_crc32_filltable (int endian);
548
549#ifndef RB_POWER_OFF
550/* Stop system and switch power off if possible. */
551#define RB_POWER_OFF 0x4321fedc
552#endif
553
554extern const char BB_BANNER[];
555
556#endif /* __LIBBUSYBOX_H__ */
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