Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 1 | /* 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 _BB_INTERNAL_H_ |
| 25 | #define _BB_INTERNAL_H_ 1 |
| 26 | |
| 27 | #include "Config.h" |
| 28 | |
Eric Andersen | ed3ef50 | 2001-01-27 08:24:39 +0000 | [diff] [blame] | 29 | #include <stdio.h> |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 30 | #include <stdarg.h> |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 31 | #include <sys/stat.h> |
Eric Andersen | 01bda5d | 2001-01-02 01:16:38 +0000 | [diff] [blame] | 32 | #include <sys/types.h> |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 33 | |
Eric Andersen | 01bda5d | 2001-01-02 01:16:38 +0000 | [diff] [blame] | 34 | #ifdef DMALLOC |
| 35 | #include "dmalloc.h" |
| 36 | #endif |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 37 | |
| 38 | /* Some useful definitions */ |
Eric Andersen | 2187adc | 2000-12-04 20:31:45 +0000 | [diff] [blame] | 39 | #define FALSE ((int) 0) |
| 40 | #define TRUE ((int) 1) |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 41 | #define SKIP ((int) 2) |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 42 | |
| 43 | /* for mtab.c */ |
| 44 | #define MTAB_GETMOUNTPT '1' |
| 45 | #define MTAB_GETDEVICE '2' |
| 46 | |
| 47 | #define BUF_SIZE 8192 |
| 48 | #define EXPAND_ALLOC 1024 |
| 49 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 50 | static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); } |
| 51 | static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); } |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 52 | |
| 53 | /* Macros for min/max. */ |
| 54 | #ifndef MIN |
| 55 | #define MIN(a,b) (((a)<(b))?(a):(b)) |
| 56 | #endif |
| 57 | |
| 58 | #ifndef MAX |
| 59 | #define MAX(a,b) (((a)>(b))?(a):(b)) |
| 60 | #endif |
| 61 | |
| 62 | |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 63 | enum Location { |
| 64 | _BB_DIR_ROOT = 0, |
| 65 | _BB_DIR_BIN, |
| 66 | _BB_DIR_SBIN, |
| 67 | _BB_DIR_USR_BIN, |
| 68 | _BB_DIR_USR_SBIN |
| 69 | }; |
| 70 | |
| 71 | struct BB_applet { |
| 72 | const char* name; |
| 73 | int (*main)(int argc, char** argv); |
| 74 | enum Location location; |
| 75 | const char* usage; |
| 76 | }; |
| 77 | /* From busybox.c */ |
| 78 | extern const struct BB_applet applets[]; |
| 79 | |
Eric Andersen | 8c725e6 | 2000-11-30 00:27:06 +0000 | [diff] [blame] | 80 | /* Automagically pull in all the applet function prototypes and |
Eric Andersen | 8755982 | 2000-12-01 19:02:24 +0000 | [diff] [blame] | 81 | * applet usage strings. These are all of the form: |
Eric Andersen | 8c725e6 | 2000-11-30 00:27:06 +0000 | [diff] [blame] | 82 | * extern int foo_main(int argc, char **argv); |
| 83 | * extern const char foo_usage[]; |
| 84 | * These are all autogenerated from the set of currently defined applets. |
| 85 | */ |
| 86 | #define PROTOTYPES |
| 87 | #include "applets.h" |
| 88 | #undef PROTOTYPES |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 89 | |
| 90 | extern const char *applet_name; |
Eric Andersen | 8c725e6 | 2000-11-30 00:27:06 +0000 | [diff] [blame] | 91 | extern int applet_name_compare(const void *x, const void *y); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 92 | |
| 93 | extern void usage(const char *usage) __attribute__ ((noreturn)); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 94 | extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); |
| 95 | extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); |
| 96 | extern void perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); |
| 97 | extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 98 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 99 | const char *mode_string(int mode); |
| 100 | const char *time_string(time_t timeVal); |
| 101 | int is_directory(const char *name, const int followLinks, struct stat *statBuf); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 102 | int isDevice(const char *name); |
| 103 | |
| 104 | typedef struct ino_dev_hash_bucket_struct { |
| 105 | struct ino_dev_hash_bucket_struct *next; |
| 106 | ino_t ino; |
| 107 | dev_t dev; |
| 108 | char name[1]; |
| 109 | } ino_dev_hashtable_bucket_t; |
| 110 | int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name); |
| 111 | void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name); |
| 112 | void reset_ino_dev_hashtable(void); |
| 113 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 114 | int copy_file(const char *srcName, const char *destName, |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 115 | int setModes, int followLinks, int forceFlag); |
Mark Whitley | 4758368 | 2000-12-05 20:03:17 +0000 | [diff] [blame] | 116 | int copy_file_chunk(int srcFd, int dstFd, size_t remaining); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 117 | char *buildName(const char *dirName, const char *fileName); |
| 118 | int makeString(int argc, const char **argv, char *buf, int bufLen); |
| 119 | char *getChunk(int size); |
| 120 | char *chunkstrdup(const char *str); |
| 121 | void freeChunks(void); |
Matt Kraai | bfa7967 | 2000-12-15 22:34:34 +0000 | [diff] [blame] | 122 | ssize_t safe_read(int fd, void *buf, size_t count); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 123 | int full_write(int fd, const char *buf, int len); |
| 124 | int full_read(int fd, char *buf, int len); |
| 125 | int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst, |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 126 | int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData), |
| 127 | int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData), |
| 128 | void* userData); |
| 129 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 130 | extern int create_path (const char *name, int mode); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 131 | extern int parse_mode( const char* s, mode_t* theMode); |
| 132 | |
| 133 | extern int get_kernel_revision(void); |
| 134 | |
| 135 | extern int get_console_fd(char* tty_name); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 136 | extern struct mntent *find_mount_point(const char *name, const char *table); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 137 | extern void write_mtab(char* blockDevice, char* directory, |
| 138 | char* filesystemType, long flags, char* string_flags); |
| 139 | extern void erase_mtab(const char * name); |
| 140 | extern void mtab_read(void); |
| 141 | extern char *mtab_first(void **iter); |
| 142 | extern char *mtab_next(void **iter); |
| 143 | extern char *mtab_getinfo(const char *match, const char which); |
| 144 | extern int check_wildcard_match(const char* text, const char* pattern); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 145 | extern long atoi_w_units (const char *cp); |
| 146 | extern pid_t* find_pid_by_name( char* pidName); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 147 | extern int find_real_root_device_name(char* name); |
| 148 | extern char *get_line_from_file(FILE *file); |
| 149 | extern void print_file(FILE *file); |
| 150 | extern int print_file_by_name(char *filename); |
| 151 | extern char process_escape_sequence(char **ptr); |
| 152 | extern char *get_last_path_component(char *path); |
Matt Kraai | c0321f9 | 2000-09-27 04:09:22 +0000 | [diff] [blame] | 153 | extern FILE *wfopen(const char *path, const char *mode); |
Matt Kraai | e0bcce0 | 2000-09-27 02:29:39 +0000 | [diff] [blame] | 154 | extern FILE *xfopen(const char *path, const char *mode); |
Matt Kraai | 05e782d | 2001-02-01 16:49:30 +0000 | [diff] [blame^] | 155 | extern void chomp(char *s); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 156 | |
Eric Andersen | 01bda5d | 2001-01-02 01:16:38 +0000 | [diff] [blame] | 157 | #ifndef DMALLOC |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 158 | extern void *xmalloc (size_t size); |
| 159 | extern void *xrealloc(void *old, size_t size); |
| 160 | extern void *xcalloc(size_t nmemb, size_t size); |
| 161 | extern char *xstrdup (const char *s); |
| 162 | #endif |
| 163 | extern char *xstrndup (const char *s, int n); |
| 164 | |
Matt Kraai | 24ac017 | 2000-12-18 21:38:57 +0000 | [diff] [blame] | 165 | struct suffix_mult { |
| 166 | char *suffix; |
| 167 | int mult; |
| 168 | }; |
| 169 | |
| 170 | extern unsigned long parse_number(const char *numstr, struct suffix_mult *suffixes); |
| 171 | |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 172 | |
| 173 | /* These parse entries in /etc/passwd and /etc/group. This is desirable |
| 174 | * for BusyBox since we want to avoid using the glibc NSS stuff, which |
| 175 | * increases target size and is often not needed embedded systems. */ |
| 176 | extern long my_getpwnam(char *name); |
| 177 | extern long my_getgrnam(char *name); |
| 178 | extern void my_getpwuid(char *name, long uid); |
| 179 | extern void my_getgrgid(char *group, long gid); |
| 180 | extern long my_getpwnamegid(char *name); |
| 181 | |
| 182 | extern int device_open(char *device, int mode); |
| 183 | |
| 184 | #if defined BB_FEATURE_MOUNT_LOOP |
| 185 | extern int del_loop(const char *device); |
| 186 | extern int set_loop(const char *device, const char *file, int offset, int *loopro); |
| 187 | extern char *find_unused_loop_device (void); |
| 188 | #endif |
| 189 | |
| 190 | |
| 191 | #if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT) |
| 192 | extern int vdprintf(int d, const char *format, va_list ap); |
| 193 | #endif |
| 194 | |
| 195 | #if defined BB_NFSMOUNT |
| 196 | int nfsmount(const char *spec, const char *node, int *flags, |
| 197 | char **extra_opts, char **mount_opts, int running_bg); |
| 198 | #endif |
| 199 | |
| 200 | #ifndef RB_POWER_OFF |
| 201 | /* Stop system and switch power off if possible. */ |
| 202 | #define RB_POWER_OFF 0x4321fedc |
| 203 | #endif |
| 204 | |
| 205 | /* Include our own copy of struct sysinfo to avoid binary compatability |
| 206 | * problems with Linux 2.4, which changed things. Grumble, grumble. */ |
| 207 | struct sysinfo { |
| 208 | long uptime; /* Seconds since boot */ |
| 209 | unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ |
| 210 | unsigned long totalram; /* Total usable main memory size */ |
| 211 | unsigned long freeram; /* Available memory size */ |
| 212 | unsigned long sharedram; /* Amount of shared memory */ |
| 213 | unsigned long bufferram; /* Memory used by buffers */ |
| 214 | unsigned long totalswap; /* Total swap space size */ |
| 215 | unsigned long freeswap; /* swap space still available */ |
| 216 | unsigned short procs; /* Number of current processes */ |
| 217 | unsigned long totalhigh; /* Total high memory size */ |
| 218 | unsigned long freehigh; /* Available high memory size */ |
| 219 | unsigned int mem_unit; /* Memory unit size in bytes */ |
| 220 | char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ |
| 221 | }; |
| 222 | extern int sysinfo (struct sysinfo* info); |
| 223 | |
| 224 | /* Bit map related macros -- libc5 doens't provide these... sigh. */ |
| 225 | #ifndef setbit |
| 226 | #define NBBY CHAR_BIT |
| 227 | #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) |
| 228 | #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) |
| 229 | #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) |
| 230 | #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) |
| 231 | #endif |
| 232 | |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 233 | #ifdef BB_FEATURE_HUMAN_READABLE |
| 234 | char *format(unsigned long val, unsigned long hr); |
| 235 | #define KILOBYTE 1024 |
| 236 | #define MEGABYTE (KILOBYTE*1024) |
| 237 | #define GIGABYTE (MEGABYTE*1024) |
| 238 | #endif |
| 239 | |
Eric Andersen | d35c215 | 2001-01-25 23:49:09 +0000 | [diff] [blame] | 240 | #ifdef BB_FEATURE_BUFFERS_GO_ON_STACK |
| 241 | #define RESERVE_BB_BUFFER(buffer,len) char buffer[len] |
| 242 | #define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len] |
| 243 | #else |
| 244 | #define RESERVE_BB_BUFFER(buffer,len) char *buffer=xmalloc(len) |
| 245 | #define RESERVE_BB_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len) |
| 246 | #endif |
| 247 | |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 248 | #endif /* _BB_INTERNAL_H_ */ |