/* vi: set sw=4 ts=4: */ /* * Busybox main internal header file * * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. * * 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. * */ #ifndef __LIBBUSYBOX_H__ #define __LIBBUSYBOX_H__ 1 #include #include #include #include #include #include #include #include #include #include #include #include "platform.h" #include "bb_config.h" #ifdef CONFIG_SELINUX #include #endif #include "pwd_.h" #include "grp_.h" #ifdef CONFIG_FEATURE_SHADOWPASSWDS #include "shadow_.h" #endif #ifdef CONFIG_FEATURE_SHA1_PASSWORDS # include "sha1.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 /* 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)) #endif /* buffer allocation schemes */ #ifdef CONFIG_FEATURE_BUFFERS_GO_ON_STACK #define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len] #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len] #define RELEASE_CONFIG_BUFFER(buffer) ((void)0) #else #ifdef CONFIG_FEATURE_BUFFERS_GO_IN_BSS #define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len] #define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len] #define RELEASE_CONFIG_BUFFER(buffer) ((void)0) #else #define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer=xmalloc(len) #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer=xmalloc(len) #define RELEASE_CONFIG_BUFFER(buffer) free (buffer) #endif #endif extern void bb_show_usage(void) ATTRIBUTE_NORETURN ATTRIBUTE_EXTERNALLY_VISIBLE; extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); extern void bb_vherror_msg(const char *s, va_list p); extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))); extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))); extern void bb_perror_nomsg_and_die(void) ATTRIBUTE_NORETURN; extern void bb_perror_nomsg(void); /* These two are used internally -- you shouldn't need to use them */ extern void bb_verror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0))); extern void bb_vperror_msg(const char *s, va_list p) __attribute__ ((format (printf, 1, 0))); extern int bb_echo(int argc, char** argv); extern const char *bb_mode_string(int mode); extern int is_directory(const char *name, int followLinks, struct stat *statBuf); extern DIR *bb_opendir(const char *path); extern DIR *bb_xopendir(const char *path); extern int remove_file(const char *path, int flags); extern int copy_file(const char *source, const char *dest, int flags); extern ssize_t safe_read(int fd, void *buf, size_t count); extern ssize_t bb_full_read(int fd, void *buf, size_t len); extern ssize_t safe_write(int fd, const void *buf, size_t count); extern ssize_t bb_full_write(int fd, const void *buf, size_t len); extern 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 bb_parse_mode( const char* s, mode_t* theMode); extern long bb_xgetlarg(const char *arg, int base, long lower, long upper); extern unsigned long bb_baud_to_value(speed_t speed); extern speed_t bb_value_to_baud(unsigned long value); extern int get_kernel_revision(void); extern int get_console_fd(void); extern struct mntent *find_mount_point(const char *name, const char *table); extern void erase_mtab(const char * name); extern long *find_pid_by_name( const char* pidName); extern long *pidlist_reverse(long *pidList); extern char *find_block_device(char *path); extern char *bb_get_line_from_file(FILE *file); extern char *bb_get_chomped_line_from_file(FILE *file); extern char *bb_get_chunk_from_file(FILE *file, int *end); extern int bb_copyfd_size(int fd1, int fd2, const off_t size); extern int bb_copyfd_eof(int fd1, int fd2); extern void bb_xprint_and_close_file(FILE *file); extern int bb_xprint_file_by_name(const char *filename); extern char bb_process_escape_sequence(const char **ptr); extern char *bb_get_last_path_component(char *path); extern FILE *bb_wfopen(const char *path, const char *mode); extern FILE *bb_wfopen_input(const char *filename); extern FILE *bb_xfopen(const char *path, const char *mode); extern int bb_fclose_nonstdin(FILE *f); extern void bb_fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN; extern void xstat(const char *filename, struct stat *buf); extern int bb_xsocket(int domain, int type, int protocol); #define BB_GETOPT_ERROR 0x80000000UL extern const char *bb_opt_complementally; extern const struct option *bb_applet_long_options; extern unsigned long bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...); extern int bb_vfprintf(FILE * __restrict stream, const char * __restrict format, va_list arg) __attribute__ ((format (printf, 2, 0))); extern int bb_vprintf(const char * __restrict format, va_list arg) __attribute__ ((format (printf, 1, 0))); extern int bb_fprintf(FILE * __restrict stream, const char * __restrict format, ...) __attribute__ ((format (printf, 2, 3))); extern int bb_printf(const char * __restrict format, ...) __attribute__ ((format (printf, 1, 2))); //#warning rename to xferror_filename? extern void bb_xferror(FILE *fp, const char *fn); extern void bb_xferror_stdout(void); extern void bb_xfflush_stdout(void); extern void bb_warn_ignoring_args(int n); extern void chomp(char *s); extern void trim(char *s); extern const char *bb_skip_whitespace(const char *); extern struct BB_applet *find_applet_by_name(const char *name); void run_applet_by_name(const char *name, int argc, char **argv); /* dmalloc will redefine these to it's own implementation. It is safe * to have the prototypes here unconditionally. */ 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 *bb_xstrdup (const char *s); extern char *bb_xstrndup (const char *s, int n); extern char *safe_strncpy(char *dst, const char *src, size_t size); extern int safe_strtoi(char *arg, int* value); extern int safe_strtod(char *arg, double* value); extern int safe_strtol(char *arg, long* value); extern int safe_strtoul(char *arg, unsigned long* value); struct suffix_mult { const char *suffix; unsigned int mult; }; extern unsigned long bb_xgetularg_bnd_sfx(const char *arg, int base, unsigned long lower, unsigned long upper, const struct suffix_mult *suffixes); extern unsigned long bb_xgetularg_bnd(const char *arg, int base, unsigned long lower, unsigned long upper); extern unsigned long bb_xgetularg10_bnd(const char *arg, unsigned long lower, unsigned long upper); extern unsigned long bb_xgetularg10(const char *arg); extern long bb_xgetlarg_bnd_sfx(const char *arg, int base, long lower, long upper, const struct suffix_mult *suffixes); extern long bb_xgetlarg10_sfx(const char *arg, const struct suffix_mult *suffixes); //#warning pitchable now? extern unsigned long bb_xparse_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 on embedded systems. */ extern long bb_xgetpwnam(const char *name); extern long bb_xgetgrnam(const char *name); extern char * bb_getug(char *buffer, char *idname, long id, int bufsize, char prefix); extern char * bb_getpwuid(char *name, long uid, int bufsize); extern char * bb_getgrgid(char *group, long gid, int bufsize); extern char *bb_askpass(int timeout, const char * prompt); extern int device_open(const char *device, int mode); extern char *query_loop(const char *device); extern int del_loop(const char *device); extern int set_loop(char **device, const char *file, int offset); #if (__GLIBC__ < 2) extern int vdprintf(int d, const char *format, va_list ap); #endif int nfsmount(const char *spec, const char *node, int *flags, char **mount_opts, int running_bg); /* Include our own copy of struct sysinfo to avoid binary compatibility * 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 short pad; /* Padding needed for m68k */ 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); enum { KILOBYTE = 1024, MEGABYTE = (KILOBYTE*1024), GIGABYTE = (MEGABYTE*1024) }; const char *make_human_readable_str(unsigned long long size, unsigned long block_size, unsigned long display_unit); int bb_ask_confirmation(void); int klogctl(int type, char * b, int len); char *xgetcwd(char *cwd); char *xreadlink(const char *path); char *concat_path_file(const char *path, const char *filename); char *concat_subpath_file(const char *path, const char *filename); char *last_char_is(const char *s, int c); int read_package_field(const char *package_buffer, char **field_name, char **field_value); //#warning yuk! char *fgets_str(FILE *file, const char *terminating_string); extern int uncompress(int fd_in, int fd_out); extern int inflate(int in, int out); extern struct hostent *xgethostbyname(const char *name); extern struct hostent *xgethostbyname2(const char *name, int af); extern int create_icmp_socket(void); extern int create_icmp6_socket(void); extern int xconnect(struct sockaddr_in *s_addr); extern unsigned short bb_lookup_port(const char *port, const char *protocol, unsigned short default_port); extern void bb_lookup_host(struct sockaddr_in *s_in, const char *host); //#warning wrap this? char *dirname (char *path); int bb_make_directory (char *path, long mode, int flags); const char *u_signal_names(const char *str_sig, int *signo, int startnum); char *bb_simplify_path(const char *path); enum { /* DO NOT CHANGE THESE VALUES! cp.c depends on them. */ FILEUTILS_PRESERVE_STATUS = 1, FILEUTILS_DEREFERENCE = 2, FILEUTILS_RECUR = 4, FILEUTILS_FORCE = 8, FILEUTILS_INTERACTIVE = 16 }; extern const char *bb_applet_name; extern const char * const bb_msg_full_version; extern const char * const bb_msg_memory_exhausted; extern const char * const bb_msg_invalid_date; extern const char * const bb_msg_io_error; extern const char * const bb_msg_read_error; extern const char * const bb_msg_write_error; extern const char * const bb_msg_name_longer_than_foo; extern const char * const bb_msg_unknown; extern const char * const bb_msg_can_not_create_raw_socket; extern const char * const bb_msg_perm_denied_are_you_root; extern const char * const bb_msg_standard_input; extern const char * const bb_msg_standard_output; extern const char * const bb_path_nologin_file; extern const char * const bb_path_passwd_file; extern const char * const bb_path_shadow_file; extern const char * const bb_path_gshadow_file; extern const char * const bb_path_group_file; extern const char * const bb_path_securetty_file; extern const char * const bb_path_motd_file; extern const char * const bb_dev_null; #ifndef BUFSIZ #define BUFSIZ 4096 #endif extern char bb_common_bufsiz1[BUFSIZ+1]; /* * You can change LIBBB_DEFAULT_LOGIN_SHELL, but don`t use, * use bb_default_login_shell and next defines, * if you LIBBB_DEFAULT_LOGIN_SHELL change, * don`t lose change increment constant! */ #define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh" extern const char * const bb_default_login_shell; /* "/bin/sh" */ #define DEFAULT_SHELL (bb_default_login_shell+1) /* "sh" */ #define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6) extern const char bb_path_mtab_file[]; extern int bb_default_error_retval; #ifdef CONFIG_FEATURE_DEVFS # define CURRENT_VC "/dev/vc/0" # define VC_1 "/dev/vc/1" # define VC_2 "/dev/vc/2" # define VC_3 "/dev/vc/3" # define VC_4 "/dev/vc/4" # define VC_5 "/dev/vc/5" #if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__) /* Yes, this sucks, but both SH (including sh64) and H8 have a SCI(F) for their respective serial ports .. as such, we can't use the common device paths for these. -- PFM */ # define SC_0 "/dev/ttsc/0" # define SC_1 "/dev/ttsc/1" # define SC_FORMAT "/dev/ttsc/%d" #else # define SC_0 "/dev/tts/0" # define SC_1 "/dev/tts/1" # define SC_FORMAT "/dev/tts/%d" #endif # define VC_FORMAT "/dev/vc/%d" # define LOOP_FORMAT "/dev/loop/%d" # define FB_0 "/dev/fb/0" #else # define CURRENT_VC "/dev/tty0" # define VC_1 "/dev/tty1" # define VC_2 "/dev/tty2" # define VC_3 "/dev/tty3" # define VC_4 "/dev/tty4" # define VC_5 "/dev/tty5" #if defined(__sh__) || defined(__H8300H__) || defined(__H8300S__) # define SC_0 "/dev/ttySC0" # define SC_1 "/dev/ttySC1" # define SC_FORMAT "/dev/ttySC%d" #else # define SC_0 "/dev/ttyS0" # define SC_1 "/dev/ttyS1" # define SC_FORMAT "/dev/ttyS%d" #endif # define VC_FORMAT "/dev/tty%d" # define LOOP_FORMAT "/dev/loop%d" # define FB_0 "/dev/fb0" #endif //#warning put these in .o files /* The following devices are the same on devfs and non-devfs systems. */ #define CURRENT_TTY "/dev/tty" #define CONSOLE_DEV "/dev/console" 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); /* Stupid gcc always includes its own builtin strlen()... */ extern size_t bb_strlen(const char *string); #ifndef BB_STRLEN_IMPLEMENTATION #define strlen(x) bb_strlen(x) #endif char *bb_xasprintf(const char *format, ...) __attribute__ ((format (printf, 1, 2))); #define FAIL_DELAY 3 extern void bb_do_delay(int seconds); extern void change_identity ( const struct passwd *pw ); extern const char *change_identity_e2str ( const struct passwd *pw ); extern void run_shell ( const char *shell, int loginshell, const char *command, const char **additional_args); #ifdef CONFIG_SELINUX extern void renew_current_security_context(void); extern void set_current_security_context(security_context_t sid); #endif extern int run_parts(char **args, const unsigned char test_mode, char **env); extern int restricted_shell ( const char *shell ); extern void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw ); extern int correct_password ( const struct passwd *pw ); extern char *pw_encrypt(const char *clear, const char *salt); extern struct spwd *pwd_to_spwd(const struct passwd *pw); extern int obscure(const char *old, const char *newval, const struct passwd *pwdp); extern int bb_xopen(const char *pathname, int flags); extern ssize_t bb_xread(int fd, void *buf, size_t count); extern void bb_xread_all(int fd, void *buf, size_t count); extern unsigned char bb_xread_char(int fd); #ifndef COMM_LEN /*#include *//* Task command name length */ #ifdef TASK_COMM_LEN #define COMM_LEN TASK_COMM_LEN #else #define COMM_LEN 16 /* synchronize with size of comm in struct task_struct in /usr/include/linux/sched.h */ #endif #endif typedef struct { int pid; char user[9]; char state[4]; unsigned long rss; int ppid; #ifdef CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE unsigned pcpu; unsigned pscpu; unsigned long stime, utime; #endif char *cmd; /* basename of executable file in call to exec(2), size from kernel headers */ char short_cmd[COMM_LEN]; } procps_status_t; extern procps_status_t * procps_scan(int save_user_arg0); extern int compare_string_array(const char * const string_array[], const char *key); extern int my_query_module(const char *name, int which, void **buf, size_t *bufsize, size_t *ret); typedef struct llist_s { char *data; struct llist_s *link; } llist_t; extern llist_t *llist_add_to(llist_t *old_head, char *new_item); extern llist_t *llist_add_to_end(llist_t *list_head, char *data); extern llist_t *llist_free_one(llist_t *elm); extern void llist_free(llist_t *elm); extern void print_login_issue(const char *issue_file, const char *tty); extern void print_login_prompt(void); #if defined(__uClinux__) extern void vfork_daemon_rexec(int nochdir, int noclose, int argc, char **argv, char *foreground_opt); #endif extern int get_terminal_width_height(int fd, int *width, int *height); extern unsigned long get_ug_id(const char *s, long (*__bb_getxxnam)(const char *)); typedef struct _sha1_ctx_t_ { uint32_t count[2]; uint32_t hash[5]; uint32_t wbuf[16]; } sha1_ctx_t; void sha1_begin(sha1_ctx_t *ctx); void sha1_hash(const void *data, size_t length, sha1_ctx_t *ctx); void *sha1_end(void *resbuf, sha1_ctx_t *ctx); typedef struct _md5_ctx_t_ { uint32_t A; uint32_t B; uint32_t C; uint32_t D; uint32_t total[2]; uint32_t buflen; char buffer[128]; } md5_ctx_t; void md5_begin(md5_ctx_t *ctx); void md5_hash(const void *data, size_t length, md5_ctx_t *ctx); void *md5_end(void *resbuf, md5_ctx_t *ctx); extern uint32_t *bb_crc32_filltable (int endian); /* busybox.h will include dmalloc later for us, else include it here. */ #if !defined _BB_INTERNAL_H_ && defined DMALLOC #include #endif #endif /* __LIBBUSYBOX_H__ */