blob: 05f61f25b77059fd476347de2e812fd6b3afd047 [file] [log] [blame]
Eric Andersenaad1a882001-03-16 22:47:14 +00001/* vi: set sw=4 ts=4: */
2/*
3 * Busybox main internal header file
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
21 * Permission has been granted to redistribute this code under the GPL.
22 *
23 */
24#ifndef __LIBBB_H__
25#define __LIBBB_H__ 1
26
27#include <stdio.h>
28#include <stdarg.h>
29#include <sys/stat.h>
30#include <sys/types.h>
31
32#ifdef DMALLOC
33#include "dmalloc.h"
34#endif
35
36#include <features.h>
37/* Stupid libc doesn't have a reliable way for use to know
38 * that libc5 is being used. Assume this is good enough */
39#if ! defined __GLIBC__ && ! defined __UCLIBC__
40/* libc5 doesn't define socklen_t */
41typedef unsigned int socklen_t;
Eric Andersenb2e3e9b2001-04-04 19:25:57 +000042/* libc5 doesn't implement BSD 4.4 daemon() */
43extern int daemon (int nochdir, int noclose);
Eric Andersenaad1a882001-03-16 22:47:14 +000044#endif
45
46/* Some useful definitions */
47#define FALSE ((int) 0)
48#define TRUE ((int) 1)
49#define SKIP ((int) 2)
50
51/* for mtab.c */
52#define MTAB_GETMOUNTPT '1'
53#define MTAB_GETDEVICE '2'
54
55#define BUF_SIZE 8192
56#define EXPAND_ALLOC 1024
57
58static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); }
59static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); }
60
61/* Macros for min/max. */
62#ifndef MIN
63#define MIN(a,b) (((a)<(b))?(a):(b))
64#endif
65
66#ifndef MAX
67#define MAX(a,b) (((a)>(b))?(a):(b))
68#endif
69
70
71
72extern void show_usage(void) __attribute__ ((noreturn));
Eric Andersenb183dfa2001-03-19 19:24:06 +000073extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
74extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
Eric Andersenaad1a882001-03-16 22:47:14 +000075extern void perror_msg(const char *s, ...);
76extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
77
Eric Andersenb183dfa2001-03-19 19:24:06 +000078/* These two are used internally -- you shouldn't need to use them */
79extern void verror_msg(const char *s, va_list p);
80extern void vperror_msg(const char *s, va_list p);
81
Eric Andersenaad1a882001-03-16 22:47:14 +000082const char *mode_string(int mode);
83const char *time_string(time_t timeVal);
84int is_directory(const char *name, const int followLinks, struct stat *statBuf);
85int isDevice(const char *name);
86
87typedef struct ino_dev_hash_bucket_struct {
88 struct ino_dev_hash_bucket_struct *next;
89 ino_t ino;
90 dev_t dev;
91 char name[1];
92} ino_dev_hashtable_bucket_t;
93int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
94void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
95void reset_ino_dev_hashtable(void);
96
97int copy_file(const char *srcName, const char *destName,
98 int setModes, int followLinks, int forceFlag);
Eric Andersen250a2212001-04-05 23:26:44 +000099int copy_file_chunk(int srcFd, int dstFd, off_t remaining);
Eric Andersenaad1a882001-03-16 22:47:14 +0000100char *buildName(const char *dirName, const char *fileName);
101int makeString(int argc, const char **argv, char *buf, int bufLen);
102char *getChunk(int size);
103char *chunkstrdup(const char *str);
104void freeChunks(void);
105ssize_t safe_read(int fd, void *buf, size_t count);
106int full_write(int fd, const char *buf, int len);
107int full_read(int fd, char *buf, int len);
108int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst,
109 int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
110 int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
111 void* userData);
112
113extern int create_path (const char *name, int mode);
114extern int parse_mode( const char* s, mode_t* theMode);
115
116extern int get_kernel_revision(void);
117
118extern int get_console_fd(char* tty_name);
119extern struct mntent *find_mount_point(const char *name, const char *table);
120extern void write_mtab(char* blockDevice, char* directory,
121 char* filesystemType, long flags, char* string_flags);
122extern void erase_mtab(const char * name);
123extern void mtab_read(void);
124extern char *mtab_first(void **iter);
125extern char *mtab_next(void **iter);
126extern char *mtab_getinfo(const char *match, const char which);
127extern int check_wildcard_match(const char* text, const char* pattern);
128extern long atoi_w_units (const char *cp);
129extern pid_t* find_pid_by_name( char* pidName);
130extern int find_real_root_device_name(char* name);
131extern char *get_line_from_file(FILE *file);
132extern void print_file(FILE *file);
133extern int print_file_by_name(char *filename);
134extern char process_escape_sequence(char **ptr);
135extern char *get_last_path_component(char *path);
136extern FILE *wfopen(const char *path, const char *mode);
137extern FILE *xfopen(const char *path, const char *mode);
138extern void chomp(char *s);
139extern void trim(char *s);
140extern struct BB_applet *find_applet_by_name(const char *name);
141void run_applet_by_name(const char *name, int argc, char **argv);
142
143#ifndef DMALLOC
144extern void *xmalloc (size_t size);
145extern void *xrealloc(void *old, size_t size);
146extern void *xcalloc(size_t nmemb, size_t size);
147extern char *xstrdup (const char *s);
148#endif
149extern char *xstrndup (const char *s, int n);
150extern char * safe_strncpy(char *dst, const char *src, size_t size);
151
152struct suffix_mult {
153 char *suffix;
154 int mult;
155};
156
157extern unsigned long parse_number(const char *numstr,
158 const struct suffix_mult *suffixes);
159
160
161/* These parse entries in /etc/passwd and /etc/group. This is desirable
162 * for BusyBox since we want to avoid using the glibc NSS stuff, which
163 * increases target size and is often not needed embedded systems. */
164extern long my_getpwnam(const char *name);
165extern long my_getgrnam(const char *name);
166extern void my_getpwuid(char *name, long uid);
167extern void my_getgrgid(char *group, long gid);
168extern long my_getpwnamegid(const char *name);
169
170extern int device_open(char *device, int mode);
171
172extern int del_loop(const char *device);
173extern int set_loop(const char *device, const char *file, int offset, int *loopro);
174extern char *find_unused_loop_device (void);
175
176
177#if (__GLIBC__ < 2)
178extern int vdprintf(int d, const char *format, va_list ap);
179#endif
180
181int nfsmount(const char *spec, const char *node, int *flags,
182 char **extra_opts, char **mount_opts, int running_bg);
183
184void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg);
185void syslog_msg(int facility, int pri, const char *msg);
186
187/* Include our own copy of struct sysinfo to avoid binary compatability
188 * problems with Linux 2.4, which changed things. Grumble, grumble. */
189struct sysinfo {
190 long uptime; /* Seconds since boot */
191 unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
192 unsigned long totalram; /* Total usable main memory size */
193 unsigned long freeram; /* Available memory size */
194 unsigned long sharedram; /* Amount of shared memory */
195 unsigned long bufferram; /* Memory used by buffers */
196 unsigned long totalswap; /* Total swap space size */
197 unsigned long freeswap; /* swap space still available */
198 unsigned short procs; /* Number of current processes */
199 unsigned long totalhigh; /* Total high memory size */
200 unsigned long freehigh; /* Available high memory size */
201 unsigned int mem_unit; /* Memory unit size in bytes */
202 char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
203};
204extern int sysinfo (struct sysinfo* info);
205
Matt Kraaid98e5742001-03-28 20:10:25 +0000206const char *make_human_readable_str(unsigned long val, unsigned long not_hr);
Eric Andersenaad1a882001-03-16 22:47:14 +0000207enum {
208 KILOBYTE = 1024,
209 MEGABYTE = (KILOBYTE*1024),
210 GIGABYTE = (MEGABYTE*1024)
211};
212
213int ask_confirmation(void);
Eric Andersene76c3b02001-04-05 03:14:39 +0000214int klogctl(int type, char * b, int len);
Eric Andersenaad1a882001-03-16 22:47:14 +0000215
216#endif /* __LIBBB_H__ */