/* vi: set sw=4 ts=4: */
/*
- * Busybox main internal header file
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
- * Permission has been granted to redistribute this code under the GPL.
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#ifndef _BB_INTERNAL_H_
-#define _BB_INTERNAL_H_ 1
+#ifndef BUSYBOX_H
+#define BUSYBOX_H 1
-#include "Config.h"
+#include "libbb.h"
+/* BB_DIR_foo and BB_SUID_bar constants: */
+#include "applet_metadata.h"
-#include <stdio.h>
-#include <stdarg.h>
-#include <sys/stat.h>
-#include <sys/types.h>
+PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
-#ifdef DMALLOC
-#include "dmalloc.h"
-#endif
-
-/* Some useful definitions */
-#define FALSE ((int) 0)
-#define TRUE ((int) 1)
-#define SKIP ((int) 2)
-
-/* for mtab.c */
-#define MTAB_GETMOUNTPT '1'
-#define MTAB_GETDEVICE '2'
-
-#define BUF_SIZE 8192
-#define EXPAND_ALLOC 1024
-
-static inline int is_decimal(ch) { return ((ch >= '0') && (ch <= '9')); }
-static inline int is_octal(ch) { return ((ch >= '0') && (ch <= '7')); }
+/* Defined in appletlib.c (by including generated applet_tables.h) */
+/* Keep in sync with applets/applet_tables.c! */
+extern const char applet_names[];
+extern int (*const applet_main[])(int argc, char **argv);
+extern const uint16_t applet_nameofs[];
+extern const uint8_t applet_install_loc[];
-/* Macros for min/max. */
-#ifndef MIN
-#define MIN(a,b) (((a)<(b))?(a):(b))
-#endif
-
-#ifndef MAX
-#define MAX(a,b) (((a)>(b))?(a):(b))
+#if ENABLE_FEATURE_SUID || ENABLE_FEATURE_PREFER_APPLETS
+# define APPLET_NAME(i) (applet_names + (applet_nameofs[i] & 0x0fff))
+#else
+# define APPLET_NAME(i) (applet_names + applet_nameofs[i])
#endif
-
-enum Location {
- _BB_DIR_ROOT = 0,
- _BB_DIR_BIN,
- _BB_DIR_SBIN,
- _BB_DIR_USR_BIN,
- _BB_DIR_USR_SBIN
-};
-
-struct BB_applet {
- const char* name;
- int (*main)(int argc, char** argv);
- enum Location location;
- const char* usage;
-};
-/* From busybox.c */
-extern const struct BB_applet applets[];
-
-/* Automagically pull in all the applet function prototypes and
- * applet usage strings. These are all of the form:
- * extern int foo_main(int argc, char **argv);
- * extern const char foo_usage[];
- * These are all autogenerated from the set of currently defined applets.
- */
-#define PROTOTYPES
-#include "applets.h"
-#undef PROTOTYPES
-
-extern const char *applet_name;
-
-extern void usage(const char *usage) __attribute__ ((noreturn));
-extern void error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
-extern void error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
-extern void perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
-extern void perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
-
-const char *mode_string(int mode);
-const char *time_string(time_t timeVal);
-int is_directory(const char *name, const int followLinks, struct stat *statBuf);
-int isDevice(const char *name);
-
-typedef struct ino_dev_hash_bucket_struct {
- struct ino_dev_hash_bucket_struct *next;
- ino_t ino;
- dev_t dev;
- char name[1];
-} ino_dev_hashtable_bucket_t;
-int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
-void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
-void reset_ino_dev_hashtable(void);
-
-int copy_file(const char *srcName, const char *destName,
- int setModes, int followLinks, int forceFlag);
-int copy_file_chunk(int srcFd, int dstFd, size_t remaining);
-char *buildName(const char *dirName, const char *fileName);
-int makeString(int argc, const char **argv, char *buf, int bufLen);
-char *getChunk(int size);
-char *chunkstrdup(const char *str);
-void freeChunks(void);
-ssize_t safe_read(int fd, void *buf, size_t count);
-int full_write(int fd, const char *buf, int len);
-int full_read(int fd, char *buf, int len);
-int recursive_action(const char *fileName, int recurse, int followLinks, int depthFirst,
- int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData),
- int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData),
- void* userData);
-
-extern int create_path (const char *name, int mode);
-extern int parse_mode( const char* s, mode_t* theMode);
-
-extern int get_kernel_revision(void);
-
-extern int get_console_fd(char* tty_name);
-extern struct mntent *find_mount_point(const char *name, const char *table);
-extern void write_mtab(char* blockDevice, char* directory,
- char* filesystemType, long flags, char* string_flags);
-extern void erase_mtab(const char * name);
-extern void mtab_read(void);
-extern char *mtab_first(void **iter);
-extern char *mtab_next(void **iter);
-extern char *mtab_getinfo(const char *match, const char which);
-extern int check_wildcard_match(const char* text, const char* pattern);
-extern long atoi_w_units (const char *cp);
-extern pid_t* find_pid_by_name( char* pidName);
-extern int find_real_root_device_name(char* name);
-extern char *get_line_from_file(FILE *file);
-extern void print_file(FILE *file);
-extern int print_file_by_name(char *filename);
-extern char process_escape_sequence(char **ptr);
-extern char *get_last_path_component(char *path);
-extern FILE *wfopen(const char *path, const char *mode);
-extern FILE *xfopen(const char *path, const char *mode);
-extern void chomp(char *s);
-extern struct BB_applet *find_applet_by_name(const char *name);
-
-#ifndef DMALLOC
-extern void *xmalloc (size_t size);
-extern void *xrealloc(void *old, size_t size);
-extern void *xcalloc(size_t nmemb, size_t size);
-extern char *xstrdup (const char *s);
+#if ENABLE_FEATURE_PREFER_APPLETS
+# define APPLET_IS_NOFORK(i) (applet_nameofs[i] & (1 << 12))
+# define APPLET_IS_NOEXEC(i) (applet_nameofs[i] & (1 << 13))
+#else
+# define APPLET_IS_NOFORK(i) 0
+# define APPLET_IS_NOEXEC(i) 0
#endif
-extern char *xstrndup (const char *s, int n);
-extern char * safe_strncpy(char *dst, const char *src, size_t size);
-
-struct suffix_mult {
- char *suffix;
- int mult;
-};
-
-extern unsigned long parse_number(const char *numstr,
- const struct suffix_mult *suffixes);
-
-
-/* These parse entries in /etc/passwd and /etc/group. This is desirable
- * for BusyBox since we want to avoid using the glibc NSS stuff, which
- * increases target size and is often not needed embedded systems. */
-extern long my_getpwnam(char *name);
-extern long my_getgrnam(char *name);
-extern void my_getpwuid(char *name, long uid);
-extern void my_getgrgid(char *group, long gid);
-extern long my_getpwnamegid(char *name);
-
-extern int device_open(char *device, int mode);
-#if defined BB_FEATURE_MOUNT_LOOP
-extern int del_loop(const char *device);
-extern int set_loop(const char *device, const char *file, int offset, int *loopro);
-extern char *find_unused_loop_device (void);
+#if ENABLE_FEATURE_SUID
+# define APPLET_SUID(i) ((applet_nameofs[i] >> 14) & 0x3)
#endif
-
-#if (__GLIBC__ < 2) && (defined BB_SYSLOGD || defined BB_INIT)
-extern int vdprintf(int d, const char *format, va_list ap);
+#if ENABLE_FEATURE_INSTALLER
+#define APPLET_INSTALL_LOC(i) ({ \
+ unsigned v = (i); \
+ if (v & 1) v = applet_install_loc[v/2] >> 4; \
+ else v = applet_install_loc[v/2] & 0xf; \
+ v; })
#endif
-#if defined BB_NFSMOUNT
-int nfsmount(const char *spec, const char *node, int *flags,
- char **extra_opts, char **mount_opts, int running_bg);
-#endif
-#ifndef RB_POWER_OFF
-/* Stop system and switch power off if possible. */
-#define RB_POWER_OFF 0x4321fedc
+/* Length of these names has effect on size of libbusybox
+ * and "individual" binaries. Keep them short.
+ */
+#if ENABLE_BUILD_LIBBUSYBOX
+#if ENABLE_FEATURE_SHARED_BUSYBOX
+int lbb_main(char **argv) EXTERNALLY_VISIBLE;
+#else
+int lbb_main(char **argv);
#endif
-
-/* Include our own copy of struct sysinfo to avoid binary compatability
- * problems with Linux 2.4, which changed things. Grumble, grumble. */
-struct sysinfo {
- long uptime; /* Seconds since boot */
- unsigned long loads[3]; /* 1, 5, and 15 minute load averages */
- unsigned long totalram; /* Total usable main memory size */
- unsigned long freeram; /* Available memory size */
- unsigned long sharedram; /* Amount of shared memory */
- unsigned long bufferram; /* Memory used by buffers */
- unsigned long totalswap; /* Total swap space size */
- unsigned long freeswap; /* swap space still available */
- unsigned short procs; /* Number of current processes */
- unsigned long totalhigh; /* Total high memory size */
- unsigned long freehigh; /* Available high memory size */
- unsigned int mem_unit; /* Memory unit size in bytes */
- char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */
-};
-extern int sysinfo (struct sysinfo* info);
-
-/* Bit map related macros -- libc5 doens't provide these... sigh. */
-#ifndef setbit
-#define NBBY CHAR_BIT
-#define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY))
-#define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
-#define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY)))
-#define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
#endif
-#ifdef BB_FEATURE_HUMAN_READABLE
-const char *format(unsigned long val, unsigned long hr);
-#define KILOBYTE 1024
-#define MEGABYTE (KILOBYTE*1024)
-#define GIGABYTE (MEGABYTE*1024)
-#endif
+POP_SAVED_FUNCTION_VISIBILITY
-#ifdef BB_FEATURE_BUFFERS_GO_ON_STACK
-#define RESERVE_BB_BUFFER(buffer,len) char buffer[len]
-#define RESERVE_BB_UBUFFER(buffer,len) unsigned char buffer[len]
-#else
-#define RESERVE_BB_BUFFER(buffer,len) char *buffer=xmalloc(len)
-#define RESERVE_BB_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len)
#endif
-
-#endif /* _BB_INTERNAL_H_ */
projects / oweals / busybox.git / blobdiff