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 | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 29 | #include <stdlib.h> |
| 30 | #include <stdarg.h> |
| 31 | #include <string.h> |
| 32 | #include <unistd.h> |
| 33 | #include <errno.h> |
| 34 | #include <sys/stat.h> |
| 35 | #include <sys/param.h> |
Eric Andersen | 01bda5d | 2001-01-02 01:16:38 +0000 | [diff] [blame] | 36 | #include <sys/types.h> |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 37 | #include <mntent.h> |
| 38 | #include <regex.h> |
| 39 | /* for the _syscall() macros */ |
| 40 | #include <sys/syscall.h> |
| 41 | #include <linux/unistd.h> |
| 42 | |
Eric Andersen | 01bda5d | 2001-01-02 01:16:38 +0000 | [diff] [blame] | 43 | #ifdef DMALLOC |
| 44 | #include "dmalloc.h" |
| 45 | #endif |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 46 | |
| 47 | /* Some useful definitions */ |
Eric Andersen | 2187adc | 2000-12-04 20:31:45 +0000 | [diff] [blame] | 48 | #define FALSE ((int) 0) |
| 49 | #define TRUE ((int) 1) |
Matt Kraai | a1f9775 | 2000-12-19 06:24:08 +0000 | [diff] [blame] | 50 | #define SKIP ((int) 2) |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 51 | |
| 52 | /* for mtab.c */ |
| 53 | #define MTAB_GETMOUNTPT '1' |
| 54 | #define MTAB_GETDEVICE '2' |
| 55 | |
| 56 | #define BUF_SIZE 8192 |
| 57 | #define EXPAND_ALLOC 1024 |
| 58 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 59 | static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); } |
| 60 | static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); } |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 61 | |
| 62 | /* Macros for min/max. */ |
| 63 | #ifndef MIN |
| 64 | #define MIN(a,b) (((a)<(b))?(a):(b)) |
| 65 | #endif |
| 66 | |
| 67 | #ifndef MAX |
| 68 | #define MAX(a,b) (((a)>(b))?(a):(b)) |
| 69 | #endif |
| 70 | |
| 71 | |
| 72 | /* I don't like nested includes, but the string and io functions are used |
| 73 | * too often |
| 74 | */ |
| 75 | #include <stdio.h> |
| 76 | #if !defined(NO_STRING_H) || defined(STDC_HEADERS) |
| 77 | # include <string.h> |
| 78 | # if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__) |
| 79 | # include <memory.h> |
| 80 | # endif |
| 81 | # define memzero(s, n) memset ((void *)(s), 0, (n)) |
| 82 | #else |
| 83 | # include <strings.h> |
| 84 | # define strchr index |
| 85 | # define strrchr rindex |
| 86 | # define memcpy(d, s, n) bcopy((s), (d), (n)) |
| 87 | # define memcmp(s1, s2, n) bcmp((s1), (s2), (n)) |
| 88 | # define memzero(s, n) bzero((s), (n)) |
| 89 | #endif |
| 90 | |
| 91 | |
| 92 | enum Location { |
| 93 | _BB_DIR_ROOT = 0, |
| 94 | _BB_DIR_BIN, |
| 95 | _BB_DIR_SBIN, |
| 96 | _BB_DIR_USR_BIN, |
| 97 | _BB_DIR_USR_SBIN |
| 98 | }; |
| 99 | |
| 100 | struct BB_applet { |
| 101 | const char* name; |
| 102 | int (*main)(int argc, char** argv); |
| 103 | enum Location location; |
| 104 | const char* usage; |
| 105 | }; |
| 106 | /* From busybox.c */ |
| 107 | extern const struct BB_applet applets[]; |
| 108 | |
Eric Andersen | 8c725e6 | 2000-11-30 00:27:06 +0000 | [diff] [blame] | 109 | /* Automagically pull in all the applet function prototypes and |
Eric Andersen | 8755982 | 2000-12-01 19:02:24 +0000 | [diff] [blame] | 110 | * applet usage strings. These are all of the form: |
Eric Andersen | 8c725e6 | 2000-11-30 00:27:06 +0000 | [diff] [blame] | 111 | * extern int foo_main(int argc, char **argv); |
| 112 | * extern const char foo_usage[]; |
| 113 | * These are all autogenerated from the set of currently defined applets. |
| 114 | */ |
| 115 | #define PROTOTYPES |
| 116 | #include "applets.h" |
| 117 | #undef PROTOTYPES |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 118 | |
| 119 | extern const char *applet_name; |
Eric Andersen | 8c725e6 | 2000-11-30 00:27:06 +0000 | [diff] [blame] | 120 | extern int applet_name_compare(const void *x, const void *y); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 121 | |
| 122 | extern void usage(const char *usage) __attribute__ ((noreturn)); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 123 | extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); |
| 124 | extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); |
| 125 | extern void perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); |
| 126 | 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] | 127 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 128 | const char *mode_string(int mode); |
| 129 | const char *time_string(time_t timeVal); |
| 130 | int is_directory(const char *name, const int followLinks, struct stat *statBuf); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 131 | int isDevice(const char *name); |
| 132 | |
| 133 | typedef struct ino_dev_hash_bucket_struct { |
| 134 | struct ino_dev_hash_bucket_struct *next; |
| 135 | ino_t ino; |
| 136 | dev_t dev; |
| 137 | char name[1]; |
| 138 | } ino_dev_hashtable_bucket_t; |
| 139 | int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name); |
| 140 | void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name); |
| 141 | void reset_ino_dev_hashtable(void); |
| 142 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 143 | int copy_file(const char *srcName, const char *destName, |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 144 | int setModes, int followLinks, int forceFlag); |
Mark Whitley | 4758368 | 2000-12-05 20:03:17 +0000 | [diff] [blame] | 145 | int copy_file_chunk(int srcFd, int dstFd, size_t remaining); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 146 | char *buildName(const char *dirName, const char *fileName); |
| 147 | int makeString(int argc, const char **argv, char *buf, int bufLen); |
| 148 | char *getChunk(int size); |
| 149 | char *chunkstrdup(const char *str); |
| 150 | void freeChunks(void); |
Matt Kraai | bfa7967 | 2000-12-15 22:34:34 +0000 | [diff] [blame] | 151 | ssize_t safe_read(int fd, void *buf, size_t count); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 152 | int full_write(int fd, const char *buf, int len); |
| 153 | int full_read(int fd, char *buf, int len); |
| 154 | int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst, |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 155 | int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData), |
| 156 | int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData), |
| 157 | void* userData); |
| 158 | |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 159 | extern int create_path (const char *name, int mode); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 160 | extern int parse_mode( const char* s, mode_t* theMode); |
| 161 | |
| 162 | extern int get_kernel_revision(void); |
| 163 | |
| 164 | extern int get_console_fd(char* tty_name); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 165 | extern struct mntent *find_mount_point(const char *name, const char *table); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 166 | extern void write_mtab(char* blockDevice, char* directory, |
| 167 | char* filesystemType, long flags, char* string_flags); |
| 168 | extern void erase_mtab(const char * name); |
| 169 | extern void mtab_read(void); |
| 170 | extern char *mtab_first(void **iter); |
| 171 | extern char *mtab_next(void **iter); |
| 172 | extern char *mtab_getinfo(const char *match, const char which); |
| 173 | extern int check_wildcard_match(const char* text, const char* pattern); |
Mark Whitley | f57c944 | 2000-12-07 19:56:48 +0000 | [diff] [blame] | 174 | extern long atoi_w_units (const char *cp); |
| 175 | extern pid_t* find_pid_by_name( char* pidName); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 176 | extern int find_real_root_device_name(char* name); |
| 177 | extern char *get_line_from_file(FILE *file); |
| 178 | extern void print_file(FILE *file); |
| 179 | extern int print_file_by_name(char *filename); |
| 180 | extern char process_escape_sequence(char **ptr); |
| 181 | extern char *get_last_path_component(char *path); |
| 182 | extern void xregcomp(regex_t *preg, const char *regex, int cflags); |
Matt Kraai | c0321f9 | 2000-09-27 04:09:22 +0000 | [diff] [blame] | 183 | extern FILE *wfopen(const char *path, const char *mode); |
Matt Kraai | e0bcce0 | 2000-09-27 02:29:39 +0000 | [diff] [blame] | 184 | extern FILE *xfopen(const char *path, const char *mode); |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 185 | |
Eric Andersen | 01bda5d | 2001-01-02 01:16:38 +0000 | [diff] [blame] | 186 | #ifndef DMALLOC |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 187 | extern void *xmalloc (size_t size); |
| 188 | extern void *xrealloc(void *old, size_t size); |
| 189 | extern void *xcalloc(size_t nmemb, size_t size); |
| 190 | extern char *xstrdup (const char *s); |
| 191 | #endif |
| 192 | extern char *xstrndup (const char *s, int n); |
| 193 | |
Matt Kraai | 24ac017 | 2000-12-18 21:38:57 +0000 | [diff] [blame] | 194 | struct suffix_mult { |
| 195 | char *suffix; |
| 196 | int mult; |
| 197 | }; |
| 198 | |
| 199 | extern unsigned long parse_number(const char *numstr, struct suffix_mult *suffixes); |
| 200 | |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 201 | |
| 202 | /* These parse entries in /etc/passwd and /etc/group. This is desirable |
| 203 | * for BusyBox since we want to avoid using the glibc NSS stuff, which |
| 204 | * increases target size and is often not needed embedded systems. */ |
| 205 | extern long my_getpwnam(char *name); |
| 206 | extern long my_getgrnam(char *name); |
| 207 | extern void my_getpwuid(char *name, long uid); |
| 208 | extern void my_getgrgid(char *group, long gid); |
| 209 | extern long my_getpwnamegid(char *name); |
| 210 | |
| 211 | extern int device_open(char *device, int mode); |
| 212 | |
| 213 | #if defined BB_FEATURE_MOUNT_LOOP |
| 214 | extern int del_loop(const char *device); |
| 215 | extern int set_loop(const char *device, const char *file, int offset, int *loopro); |
| 216 | extern char *find_unused_loop_device (void); |
| 217 | #endif |
| 218 | |
| 219 | |
| 220 | #if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT) |
| 221 | extern int vdprintf(int d, const char *format, va_list ap); |
| 222 | #endif |
| 223 | |
| 224 | #if defined BB_NFSMOUNT |
| 225 | int nfsmount(const char *spec, const char *node, int *flags, |
| 226 | char **extra_opts, char **mount_opts, int running_bg); |
| 227 | #endif |
| 228 | |
| 229 | #ifndef RB_POWER_OFF |
| 230 | /* Stop system and switch power off if possible. */ |
| 231 | #define RB_POWER_OFF 0x4321fedc |
| 232 | #endif |
| 233 | |
| 234 | /* Include our own copy of struct sysinfo to avoid binary compatability |
| 235 | * problems with Linux 2.4, which changed things. Grumble, grumble. */ |
| 236 | struct sysinfo { |
| 237 | long uptime; /* Seconds since boot */ |
| 238 | unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ |
| 239 | unsigned long totalram; /* Total usable main memory size */ |
| 240 | unsigned long freeram; /* Available memory size */ |
| 241 | unsigned long sharedram; /* Amount of shared memory */ |
| 242 | unsigned long bufferram; /* Memory used by buffers */ |
| 243 | unsigned long totalswap; /* Total swap space size */ |
| 244 | unsigned long freeswap; /* swap space still available */ |
| 245 | unsigned short procs; /* Number of current processes */ |
| 246 | unsigned long totalhigh; /* Total high memory size */ |
| 247 | unsigned long freehigh; /* Available high memory size */ |
| 248 | unsigned int mem_unit; /* Memory unit size in bytes */ |
| 249 | char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ |
| 250 | }; |
| 251 | extern int sysinfo (struct sysinfo* info); |
| 252 | |
| 253 | /* Bit map related macros -- libc5 doens't provide these... sigh. */ |
| 254 | #ifndef setbit |
| 255 | #define NBBY CHAR_BIT |
| 256 | #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) |
| 257 | #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) |
| 258 | #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) |
| 259 | #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) |
| 260 | #endif |
| 261 | |
Richard June | 6d0921c | 2001-01-22 22:35:38 +0000 | [diff] [blame] | 262 | #ifdef BB_FEATURE_HUMAN_READABLE |
| 263 | char *format(unsigned long val, unsigned long hr); |
| 264 | #define KILOBYTE 1024 |
| 265 | #define MEGABYTE (KILOBYTE*1024) |
| 266 | #define GIGABYTE (MEGABYTE*1024) |
| 267 | #endif |
| 268 | |
Eric Andersen | f6b7139 | 2000-09-26 01:09:18 +0000 | [diff] [blame] | 269 | #endif /* _BB_INTERNAL_H_ */ |