327 lines
11 KiB
C
327 lines
11 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Busybox main internal header file
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Based in part on code from sash, Copyright (c) 1999 by David I. Bell
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* Permission has been granted to redistribute this code under the GPL.
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*
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*/
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#ifndef __LIBBB_H__
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#define __LIBBB_H__ 1
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#include <stdio.h>
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#include <stdarg.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <netdb.h>
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#ifdef DMALLOC
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#include "dmalloc.h"
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#endif
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#include <features.h>
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#ifndef _BB_INTERNAL_H_
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#include "../busybox.h"
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#endif
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#if (__GNU_LIBRARY__ < 5) && (!defined __dietlibc__)
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/* libc5 doesn't define socklen_t */
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typedef unsigned int socklen_t;
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/* libc5 doesn't implement BSD 4.4 daemon() */
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extern int daemon (int nochdir, int noclose);
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/* libc5 doesn't implement strtok_r */
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char *strtok_r(char *s, const char *delim, char **ptrptr);
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#endif
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/* Some useful definitions */
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#define FALSE ((int) 0)
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#define TRUE ((int) 1)
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#define SKIP ((int) 2)
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/* for mtab.c */
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#define MTAB_GETMOUNTPT '1'
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#define MTAB_GETDEVICE '2'
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#define BUF_SIZE 8192
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#define EXPAND_ALLOC 1024
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static inline int is_decimal(int ch) { return ((ch >= '0') && (ch <= '9')); }
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static inline int is_octal(int ch) { return ((ch >= '0') && (ch <= '7')); }
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/* Macros for min/max. */
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#ifndef MIN
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#define MIN(a,b) (((a)<(b))?(a):(b))
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#endif
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#ifndef MAX
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#define MAX(a,b) (((a)>(b))?(a):(b))
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#endif
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extern void show_usage(void) __attribute__ ((noreturn));
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extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
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extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
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extern void perror_msg(const char *s, ...);
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extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
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extern void vherror_msg(const char *s, va_list p);
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extern void herror_msg(const char *s, ...);
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extern void herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn));
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/* These two are used internally -- you shouldn't need to use them */
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extern void verror_msg(const char *s, va_list p);
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extern void vperror_msg(const char *s, va_list p);
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const char *mode_string(int mode);
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const char *time_string(time_t timeVal);
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int is_directory(const char *name, int followLinks, struct stat *statBuf);
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int isDevice(const char *name);
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int remove_file(const char *path, int flags);
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int copy_file(const char *source, const char *dest, int flags);
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int copy_file_chunk(FILE *src_file, FILE *dst_file, unsigned long long chunksize);
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char *buildName(const char *dirName, const char *fileName);
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int makeString(int argc, const char **argv, char *buf, int bufLen);
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char *getChunk(int size);
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char *chunkstrdup(const char *str);
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void freeChunks(void);
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ssize_t safe_read(int fd, void *buf, size_t count);
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int full_write(int fd, const char *buf, int len);
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int full_read(int fd, char *buf, int len);
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int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst,
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int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
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int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
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void* userData);
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extern int parse_mode( const char* s, mode_t* theMode);
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extern int get_kernel_revision(void);
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extern int get_console_fd(char* tty_name);
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extern struct mntent *find_mount_point(const char *name, const char *table);
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extern void write_mtab(char* blockDevice, char* directory,
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char* filesystemType, long flags, char* string_flags);
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extern void erase_mtab(const char * name);
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extern long atoi_w_units (const char *cp);
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extern pid_t* find_pid_by_name( char* pidName);
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extern char *find_real_root_device_name(const char* name);
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extern char *get_line_from_file(FILE *file);
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extern void print_file(FILE *file);
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extern int copyfd(int fd1, int fd2);
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extern int print_file_by_name(char *filename);
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extern char process_escape_sequence(const char **ptr);
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extern char *get_last_path_component(char *path);
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extern FILE *wfopen(const char *path, const char *mode);
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extern FILE *xfopen(const char *path, const char *mode);
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extern void chomp(char *s);
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extern void trim(char *s);
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extern struct BB_applet *find_applet_by_name(const char *name);
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void run_applet_by_name(const char *name, int argc, char **argv);
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#ifndef DMALLOC
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extern void *xmalloc (size_t size);
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extern void *xrealloc(void *old, size_t size);
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extern void *xcalloc(size_t nmemb, size_t size);
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extern char *xstrdup (const char *s);
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#endif
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extern char *xstrndup (const char *s, int n);
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extern char * safe_strncpy(char *dst, const char *src, size_t size);
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struct suffix_mult {
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const char *suffix;
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int mult;
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};
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extern unsigned long parse_number(const char *numstr,
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const struct suffix_mult *suffixes);
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/* These parse entries in /etc/passwd and /etc/group. This is desirable
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* for BusyBox since we want to avoid using the glibc NSS stuff, which
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* increases target size and is often not needed embedded systems. */
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extern long my_getpwnam(const char *name);
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extern long my_getgrnam(const char *name);
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extern void my_getpwuid(char *name, long uid);
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extern void my_getgrgid(char *group, long gid);
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extern long my_getpwnamegid(const char *name);
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extern int device_open(char *device, int mode);
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extern int del_loop(const char *device);
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extern int set_loop(const char *device, const char *file, int offset, int *loopro);
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extern char *find_unused_loop_device (void);
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#if (__GLIBC__ < 2)
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extern int vdprintf(int d, const char *format, va_list ap);
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#endif
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int nfsmount(const char *spec, const char *node, int *flags,
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char **extra_opts, char **mount_opts, int running_bg);
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void syslog_msg_with_name(const char *name, int facility, int pri, const char *msg);
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void syslog_msg(int facility, int pri, const char *msg);
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/* Include our own copy of struct sysinfo to avoid binary compatability
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* problems with Linux 2.4, which changed things. Grumble, grumble. */
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struct sysinfo {
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long uptime; /* Seconds since boot */
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unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
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unsigned long totalram; /* Total usable main memory size */
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unsigned long freeram; /* Available memory size */
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unsigned long sharedram; /* Amount of shared memory */
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unsigned long bufferram; /* Memory used by buffers */
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unsigned long totalswap; /* Total swap space size */
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unsigned long freeswap; /* swap space still available */
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unsigned short procs; /* Number of current processes */
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unsigned short pad; /* Padding needed for m68k */
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unsigned long totalhigh; /* Total high memory size */
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unsigned long freehigh; /* Available high memory size */
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unsigned int mem_unit; /* Memory unit size in bytes */
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char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
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};
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extern int sysinfo (struct sysinfo* info);
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enum {
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KILOBYTE = 1024,
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MEGABYTE = (KILOBYTE*1024),
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GIGABYTE = (MEGABYTE*1024)
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};
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const char *make_human_readable_str(unsigned long size, unsigned long block_size, unsigned long display_unit);
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int ask_confirmation(void);
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int klogctl(int type, char * b, int len);
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char *xgetcwd(char *cwd);
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char *xreadlink(const char *path);
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char *concat_path_file(const char *path, const char *filename);
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char *last_char_is(const char *s, int c);
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extern long arith (const char *startbuf, int *errcode);
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typedef struct file_headers_s {
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char *name;
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char *link_name;
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off_t size;
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uid_t uid;
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gid_t gid;
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mode_t mode;
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time_t mtime;
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dev_t device;
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} file_header_t;
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file_header_t *get_header_ar(FILE *in_file);
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file_header_t *get_header_cpio(FILE *src_stream);
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file_header_t *get_header_tar(FILE *tar_stream);
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enum extract_functions_e {
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extract_verbose_list = 1,
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extract_list = 2,
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extract_one_to_buffer = 4,
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extract_to_stdout = 8,
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extract_all_to_fs = 16,
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extract_preserve_date = 32,
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extract_data_tar_gz = 64,
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extract_control_tar_gz = 128,
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extract_unzip_only = 256,
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extract_unconditional = 512,
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extract_create_leading_dirs = 1024,
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extract_quiet = 2048,
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extract_exclude_list = 4096
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};
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char *unarchive(FILE *src_stream, FILE *out_stream, file_header_t *(*get_headers)(FILE *),
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const int extract_function, const char *prefix, char **include_name, char **exclude_name);
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char *deb_extract(const char *package_filename, FILE *out_stream, const int extract_function,
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const char *prefix, const char *filename);
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int read_package_field(const char *package_buffer, char **field_name, char **field_value);
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char *fgets_str(FILE *file, const char *terminating_string);
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extern int unzip(FILE *l_in_file, FILE *l_out_file);
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extern void gz_close(int gunzip_pid);
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extern FILE *gz_open(FILE *compressed_file, int *pid);
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extern struct hostent *xgethostbyname(const char *name);
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extern int create_icmp_socket(void);
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char *dirname (char *path);
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int make_directory (char *path, long mode, int flags);
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const char *u_signal_names(const char *str_sig, int *signo, int startnum);
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char *simplify_path(const char *path);
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#define CT_AUTO 0
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#define CT_UNIX2DOS 1
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#define CT_DOS2UNIX 2
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/* extern int convert(char *fn, int ConvType); */
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enum {
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FILEUTILS_PRESERVE_STATUS = 1,
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FILEUTILS_DEREFERENCE = 2,
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FILEUTILS_RECUR = 4,
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FILEUTILS_FORCE = 8,
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FILEUTILS_INTERACTIVE = 16
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};
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extern const char *applet_name;
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extern const char * const full_version;
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extern const char * const name_too_long;
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extern const char * const omitting_directory;
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extern const char * const not_a_directory;
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extern const char * const memory_exhausted;
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extern const char * const invalid_date;
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extern const char * const invalid_option;
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extern const char * const io_error;
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extern const char * const dash_dash_help;
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extern const char * const write_error;
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extern const char * const too_few_args;
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extern const char * const name_longer_than_foo;
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extern const char * const unknown;
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extern const char * const can_not_create_raw_socket;
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#ifdef BB_FEATURE_DEVFS
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# define CURRENT_VC "/dev/vc/0"
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# define VC_1 "/dev/vc/1"
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# define VC_2 "/dev/vc/2"
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# define VC_3 "/dev/vc/3"
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# define VC_4 "/dev/vc/4"
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# define VC_5 "/dev/vc/5"
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# define SC_0 "/dev/tts/0"
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# define SC_1 "/dev/tts/1"
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# define VC_FORMAT "/dev/vc/%d"
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# define SC_FORMAT "/dev/tts/%d"
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#else
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# define CURRENT_VC "/dev/tty0"
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# define VC_1 "/dev/tty1"
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# define VC_2 "/dev/tty2"
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# define VC_3 "/dev/tty3"
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# define VC_4 "/dev/tty4"
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# define VC_5 "/dev/tty5"
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# define SC_0 "/dev/ttyS0"
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# define SC_1 "/dev/ttyS1"
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# define VC_FORMAT "/dev/tty%d"
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# define SC_FORMAT "/dev/ttyS%d"
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#endif
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/* The following devices are the same on devfs and non-devfs systems. */
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#define CURRENT_TTY "/dev/tty"
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#define CONSOLE_DEV "/dev/console"
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#endif /* __LIBBB_H__ */
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