489 lines
17 KiB
C
489 lines
17 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 __LIBCONFIG_H__
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#define __LIBCONFIG_H__ 1
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#include <stdio.h>
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#include <stdlib.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 <regex.h>
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#include <termios.h>
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#include <stdint.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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#include "config.h"
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#ifdef CONFIG_SELINUX
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#include <proc_secure.h>
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#endif
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#include "pwd_.h"
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#include "grp_.h"
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#ifdef CONFIG_FEATURE_SHADOWPASSWDS
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#include "shadow_.h"
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#endif
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#ifdef CONFIG_FEATURE_SHA1_PASSWORDS
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# include "sha1.h"
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#endif
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/* Convenience macros to test the version of gcc. */
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#if defined __GNUC__ && defined __GNUC_MINOR__
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# define __GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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#else
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# define __GNUC_PREREQ(maj, min) 0
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#endif
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/* __restrict is known in EGCS 1.2 and above. */
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#if !__GNUC_PREREQ (2,92)
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# define __restrict /* Ignore */
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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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/* 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 bb_show_usage(void) __attribute__ ((noreturn));
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extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
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extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
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extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
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extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
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extern void bb_vherror_msg(const char *s, va_list p);
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extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2)));
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extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2)));
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extern void bb_perror_nomsg_and_die(void) __attribute__ ((noreturn));
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extern void bb_perror_nomsg(void);
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/* These two are used internally -- you shouldn't need to use them */
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extern void bb_verror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0)));
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extern void bb_vperror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0)));
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extern const char *bb_mode_string(int mode);
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extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
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extern int remove_file(const char *path, int flags);
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extern int copy_file(const char *source, const char *dest, int flags);
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extern ssize_t safe_read(int fd, void *buf, size_t count);
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extern ssize_t bb_full_read(int fd, void *buf, size_t len);
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extern ssize_t safe_write(int fd, const void *buf, size_t count);
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extern ssize_t bb_full_write(int fd, const void *buf, size_t len);
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extern int recursive_action(const char *fileName, int recurse,
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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 bb_parse_mode( const char* s, mode_t* theMode);
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extern long bb_xgetlarg(const char *arg, int base, long lower, long upper);
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extern unsigned long bb_baud_to_value(speed_t speed);
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extern speed_t bb_value_to_baud(unsigned long value);
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extern int get_kernel_revision(void);
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extern int get_console_fd(void);
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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 *find_pid_by_name( const char* pidName);
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extern char *find_real_root_device_name(void);
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extern char *bb_get_line_from_file(FILE *file);
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extern char *bb_get_chomped_line_from_file(FILE *file);
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extern char *bb_get_chunk_from_file(FILE *file);
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extern int bb_copyfd_size(int fd1, int fd2, const off_t size);
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extern int bb_copyfd_eof(int fd1, int fd2);
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extern void bb_xprint_and_close_file(FILE *file);
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extern int bb_xprint_file_by_name(const char *filename);
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extern char bb_process_escape_sequence(const char **ptr);
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extern char *bb_get_last_path_component(char *path);
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extern FILE *bb_wfopen(const char *path, const char *mode);
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extern FILE *bb_xfopen(const char *path, const char *mode);
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//#warning rename?
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extern int bb_fclose_nonstdin(FILE *f);
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extern void bb_fflush_stdout_and_exit(int retval) __attribute__ ((noreturn));
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extern const char *bb_opt_complementaly;
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extern const struct option *bb_applet_long_options;
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extern unsigned long bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...);
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//#warning rename?
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extern FILE *bb_wfopen_input(const char *filename);
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extern int bb_vfprintf(FILE * __restrict stream, const char * __restrict format,
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va_list arg) __attribute__ ((format (printf, 2, 0)));
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extern int bb_vprintf(const char * __restrict format, va_list arg)
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__attribute__ ((format (printf, 1, 0)));
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extern int bb_fprintf(FILE * __restrict stream, const char * __restrict format, ...)
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__attribute__ ((format (printf, 2, 3)));
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extern int bb_printf(const char * __restrict format, ...)
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__attribute__ ((format (printf, 1, 2)));
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//#warning rename to xferror_filename?
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extern void bb_xferror(FILE *fp, const char *fn);
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extern void bb_xferror_stdout(void);
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extern void bb_xfflush_stdout(void);
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extern void bb_warn_ignoring_args(int n);
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extern void chomp(char *s);
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extern void trim(char *s);
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extern const char *bb_skip_whitespace(const char *);
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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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//#warning is this needed anymore?
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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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#endif
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extern char *bb_xstrdup (const char *s);
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extern char *bb_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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extern int safe_strtoi(char *arg, int* value);
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extern int safe_strtod(char *arg, double* value);
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extern int safe_strtol(char *arg, long* value);
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extern int safe_strtoul(char *arg, unsigned long* value);
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struct suffix_mult {
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const char *suffix;
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unsigned int mult;
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};
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extern unsigned long bb_xgetularg_bnd_sfx(const char *arg, int base,
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unsigned long lower,
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unsigned long upper,
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const struct suffix_mult *suffixes);
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extern unsigned long bb_xgetularg_bnd(const char *arg, int base,
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unsigned long lower,
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unsigned long upper);
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extern unsigned long bb_xgetularg10_bnd(const char *arg,
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unsigned long lower,
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unsigned long upper);
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extern unsigned long bb_xgetularg10(const char *arg);
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extern long bb_xgetlarg_bnd_sfx(const char *arg, int base,
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long lower,
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long upper,
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const struct suffix_mult *suffixes);
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extern long bb_xgetlarg10_sfx(const char *arg, const struct suffix_mult *suffixes);
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//#warning pitchable now?
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extern unsigned long bb_xparse_number(const char *numstr,
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const struct suffix_mult *suffixes);
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//#warning change names?
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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 char * my_getug(char *buffer, char *idname, long id, int bufsize, char prefix);
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extern char * my_getpwuid(char *name, long uid, int bufsize);
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extern char * my_getgrgid(char *group, long gid, int bufsize);
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extern char *bb_askpass(int timeout, const char * prompt);
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extern int device_open(const 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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/* 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 long size,
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unsigned long block_size, unsigned long display_unit);
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int bb_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 *concat_subpath_file(const char *path, const char *filename);
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char *last_char_is(const char *s, int c);
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int read_package_field(const char *package_buffer, char **field_name, char **field_value);
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//#warning yuk!
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char *fgets_str(FILE *file, const char *terminating_string);
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extern int uncompress(int fd_in, int fd_out);
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extern int inflate(int in, int out);
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extern struct hostent *xgethostbyname(const char *name);
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extern struct hostent *xgethostbyname2(const char *name, int af);
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extern int create_icmp_socket(void);
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extern int create_icmp6_socket(void);
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extern int xconnect(struct sockaddr_in *s_addr);
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extern unsigned short bb_lookup_port(const char *port, const char *protocol, unsigned short default_port);
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extern void bb_lookup_host(struct sockaddr_in *s_in, const char *host);
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//#warning wrap this?
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char *dirname (char *path);
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int bb_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 *bb_simplify_path(const char *path);
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enum { /* DO NOT CHANGE THESE VALUES! cp.c depends on them. */
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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 *bb_applet_name;
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extern const char * const bb_msg_full_version;
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extern const char * const bb_msg_memory_exhausted;
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extern const char * const bb_msg_invalid_date;
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extern const char * const bb_msg_io_error;
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extern const char * const bb_msg_write_error;
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extern const char * const bb_msg_name_longer_than_foo;
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extern const char * const bb_msg_unknown;
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extern const char * const bb_msg_can_not_create_raw_socket;
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extern const char * const bb_msg_perm_denied_are_you_root;
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extern const char * const bb_msg_standard_input;
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extern const char * const bb_msg_standard_output;
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extern const char * const bb_path_nologin_file;
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extern const char * const bb_path_passwd_file;
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extern const char * const bb_path_shadow_file;
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extern const char * const bb_path_gshadow_file;
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extern const char * const bb_path_group_file;
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extern const char * const bb_path_securetty_file;
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extern const char * const bb_path_motd_file;
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/*
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* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don`t use,
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* use bb_default_login_shell and next defines,
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* if you LIBBB_DEFAULT_LOGIN_SHELL change,
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* don`t lose change increment constant!
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*/
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#define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh"
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extern const char * const bb_default_login_shell;
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/* "/bin/sh" */
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#define DEFAULT_SHELL (bb_default_login_shell+1)
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/* "sh" */
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#define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6)
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extern const char bb_path_mtab_file[];
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extern int bb_default_error_retval;
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#ifdef CONFIG_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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#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
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/* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their
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respective serial ports .. as such, we can't use the common device paths for
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these. -- PFM */
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# define SC_0 "/dev/ttsc/0"
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# define SC_1 "/dev/ttsc/1"
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# define SC_FORMAT "/dev/ttsc/%d"
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#else
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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 SC_FORMAT "/dev/tts/%d"
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#endif
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# define VC_FORMAT "/dev/vc/%d"
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# define LOOP_FORMAT "/dev/loop/%d"
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# define FB_0 "/dev/fb/0"
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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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#if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__)
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# define SC_0 "/dev/ttySC0"
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# define SC_1 "/dev/ttySC1"
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# define SC_FORMAT "/dev/ttySC%d"
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#else
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# define SC_0 "/dev/ttyS0"
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# define SC_1 "/dev/ttyS1"
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# define SC_FORMAT "/dev/ttyS%d"
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#endif
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# define VC_FORMAT "/dev/tty%d"
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# define LOOP_FORMAT "/dev/loop%d"
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# define FB_0 "/dev/fb0"
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#endif
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//#warning put these in .o files
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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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int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
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void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
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void reset_ino_dev_hashtable(void);
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/* Stupid gcc always includes its own builtin strlen()... */
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extern size_t bb_strlen(const char *string);
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#define strlen(x) bb_strlen(x)
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void bb_xasprintf(char **string_ptr, const char *format, ...) __attribute__ ((format (printf, 2, 3)));
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#define FAIL_DELAY 3
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extern void change_identity ( const struct passwd *pw );
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extern const char *change_identity_e2str ( const struct passwd *pw );
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extern void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args
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#ifdef CONFIG_SELINUX
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, security_id_t sid
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#endif
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);
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extern int run_parts(char **args, const unsigned char test_mode, char **env);
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extern int restricted_shell ( const char *shell );
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extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw );
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extern int correct_password ( const struct passwd *pw );
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extern char *pw_encrypt(const char *clear, const char *salt);
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extern struct spwd *pwd_to_spwd(const struct passwd *pw);
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extern int obscure(const char *old, const char *newval, const struct passwd *pwdp);
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extern int bb_xopen(const char *pathname, int flags);
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extern ssize_t bb_xread(int fd, void *buf, size_t count);
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extern void bb_xread_all(int fd, void *buf, size_t count);
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extern unsigned char bb_xread_char(int fd);
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typedef struct {
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int pid;
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char user[9];
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char state[4];
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unsigned long rss;
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int ppid;
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#ifdef FEATURE_CPU_USAGE_PERCENTAGE
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unsigned pcpu;
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unsigned long stime, utime;
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#endif
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char *cmd;
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/* basename of executable file in call to exec(2),
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size from kernel headers */
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char short_cmd[16];
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} procps_status_t;
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extern procps_status_t * procps_scan(int save_user_arg0
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#ifdef CONFIG_SELINUX
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, int use_selinux, security_id_t *sid
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#endif
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);
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extern unsigned short compare_string_array(const char *string_array[], const char *key);
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extern int my_query_module(const char *name, int which, void **buf, size_t *bufsize, size_t *ret);
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typedef struct llist_s {
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char *data;
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struct llist_s *link;
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} llist_t;
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extern llist_t *llist_add_to(llist_t *old_head, char *new_item);
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extern void print_login_issue(const char *issue_file, const char *tty);
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extern void print_login_prompt(void);
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extern void vfork_daemon_rexec(int nochdir, int noclose,
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int argc, char **argv, char *foreground_opt);
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extern void get_terminal_width_height(int fd, int *width, int *height);
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extern unsigned long get_ug_id(const char *s, long (*my_getxxnam)(const char *));
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extern void xregcomp(regex_t *preg, const char *regex, int cflags);
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#define HASH_SHA1 1
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#define HASH_MD5 2
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extern int hash_fd(int fd, const size_t size, const uint8_t hash_algo, uint8_t *hashval);
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#endif /* __LIBCONFIG_H__ */
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