#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
-#include <malloc.h>
+#include <mntent.h>
#include <netdb.h>
#include <setjmp.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
+#include <stddef.h>
#include <string.h>
#include <strings.h>
#include <sys/ioctl.h>
#if ENABLE_SELINUX
#include <selinux/selinux.h>
+#include <selinux/context.h>
#endif
#if ENABLE_LOCALE_SUPPORT
/* scary. better ideas? (but do *test* them first!) */
#define OFF_T_MAX ((off_t)~((off_t)1 << (sizeof(off_t)*8-1)))
-/* This structure defines protocol families and their handlers. */
-struct aftype {
- char *name;
- char *title;
- int af;
- int alen;
- char *(*print) (unsigned char *);
- char *(*sprint) (struct sockaddr *, int numeric);
- int (*input) (int type, char *bufp, struct sockaddr *);
- void (*herror) (char *text);
- int (*rprint) (int options);
- int (*rinput) (int typ, int ext, char **argv);
-
- /* may modify src */
- int (*getmask) (char *src, struct sockaddr * mask, char *name);
-
- int fd;
- char *flag_file;
-};
-
-/* This structure defines hardware protocols and their handlers. */
-struct hwtype {
- char *name;
- char *title;
- int type;
- int alen;
- char *(*print) (unsigned char *);
- int (*input) (char *, struct sockaddr *);
- int (*activate) (int fd);
- int suppress_null_addr;
-};
-
/* Some useful definitions */
#undef FALSE
#define FALSE ((int) 0)
/* buffer allocation schemes */
#if ENABLE_FEATURE_BUFFERS_GO_ON_STACK
-#define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len]
+#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
#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)
+#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
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);
-
-
-/* Size-saving "small" ints (arch-dependent) */
-#if defined(i386) || defined(__x86_64__) || defined(__mips__) || defined(__cris__)
-/* add other arches which benefit from this... */
-typedef signed char smallint;
-typedef unsigned char smalluint;
-#else
-/* for arches where byte accesses generate larger code: */
-typedef int smallint;
-typedef unsigned smalluint;
-#endif
+int sysinfo(struct sysinfo* info);
extern void chomp(char *s);
extern char *skip_whitespace(const char *);
extern char *skip_non_whitespace(const char *);
-extern const char *bb_mode_string(int mode);
+//TODO: supply a pointer to char[11] buffer (avoid statics)?
+extern const char *bb_mode_string(mode_t mode);
extern int is_directory(const char *name, int followLinks, struct stat *statBuf);
extern int remove_file(const char *path, int flags);
extern int copy_file(const char *source, const char *dest, int flags);
-extern int recursive_action(const char *fileName, int recurse,
- int followLinks, int depthFirst,
+enum {
+ ACTION_RECURSE = (1 << 0),
+ ACTION_FOLLOWLINKS = (1 << 1),
+ ACTION_DEPTHFIRST = (1 << 2),
+ /*ACTION_REVERSE = (1 << 3), - unused */
+};
+extern int recursive_action(const char *fileName, unsigned flags,
int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
- void* userData, int depth);
+ void* userData, const unsigned depth);
extern int device_open(const char *device, int mode);
extern int get_console_fd(void);
-extern char *find_block_device(char *path);
+extern char *find_block_device(const char *path);
/* bb_copyfd_XX print read/write errors and return -1 if they occur */
extern off_t bb_copyfd_eof(int fd1, int fd2);
extern off_t bb_copyfd_size(int fd1, int fd2, off_t size);
/* this helper yells "short read!" if param is not -1 */
extern void complain_copyfd_and_die(off_t sz) ATTRIBUTE_NORETURN;
extern char bb_process_escape_sequence(const char **ptr);
+/* TODO: sometimes modifies its parameter, which
+ * makes it rather inconvenient at times: */
extern char *bb_get_last_path_component(char *path);
-extern int ndelay_on(int fd);
-extern int ndelay_off(int fd);
+
+int ndelay_on(int fd);
+int ndelay_off(int fd);
+void xmove_fd(int, int);
-extern DIR *xopendir(const char *path);
-extern DIR *warn_opendir(const char *path);
+DIR *xopendir(const char *path);
+DIR *warn_opendir(const char *path);
-char *xgetcwd(char *cwd);
-char *xreadlink(const char *path);
+char *xrealloc_getcwd_or_warn(char *cwd);
+char *xmalloc_readlink_or_warn(const char *path);
char *xmalloc_realpath(const char *path);
-extern void xstat(char *filename, struct stat *buf);
-extern pid_t spawn(char **argv);
-extern pid_t xspawn(char **argv);
-extern int wait4pid(int pid);
-extern void xsetgid(gid_t gid);
-extern void xsetuid(uid_t uid);
-extern void xdaemon(int nochdir, int noclose);
-/* More clever/thorough xdaemon */
-extern void bb_sanitize_server_stdio(int daemonize);
-extern void xchdir(const char *path);
-extern void xsetenv(const char *key, const char *value);
-extern int xopen(const char *pathname, int flags);
-extern int xopen3(const char *pathname, int flags, int mode);
-extern off_t xlseek(int fd, off_t offset, int whence);
-extern off_t fdlength(int fd);
-
-
-extern int xsocket(int domain, int type, int protocol);
-extern void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
-extern void xlisten(int s, int backlog);
-extern void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen);
-extern int xconnect_tcp_v4(struct sockaddr_in *s_addr);
-extern struct hostent *xgethostbyname(const char *name);
-extern struct hostent *xgethostbyname2(const char *name, int af);
-extern int setsockopt_reuseaddr(int fd);
-extern int setsockopt_broadcast(int fd);
-
-/* "new" (ipv4+ipv6) API */
+
+
+//TODO: signal(sid, f) is the same? then why?
+extern void sig_catch(int,void (*)(int));
+//#define sig_ignore(s) (sig_catch((s), SIG_IGN))
+//#define sig_uncatch(s) (sig_catch((s), SIG_DFL))
+extern void sig_block(int);
+extern void sig_unblock(int);
+/* UNUSED: extern void sig_blocknone(void); */
+extern void sig_pause(void);
+
+
+void xsetgid(gid_t gid);
+void xsetuid(uid_t uid);
+void xchdir(const char *path);
+void xsetenv(const char *key, const char *value);
+void xunlink(const char *pathname);
+void xstat(const char *pathname, struct stat *buf);
+int xopen(const char *pathname, int flags);
+int xopen3(const char *pathname, int flags, int mode);
+int open_or_warn(const char *pathname, int flags);
+int open3_or_warn(const char *pathname, int flags, int mode);
+off_t xlseek(int fd, off_t offset, int whence);
+off_t fdlength(int fd);
+
+
+int xsocket(int domain, int type, int protocol);
+void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
+void xlisten(int s, int backlog);
+void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen);
+ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
+ socklen_t tolen);
+int setsockopt_reuseaddr(int fd);
+int setsockopt_broadcast(int fd);
+/* NB: returns port in host byte order */
+unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port);
typedef struct len_and_sockaddr {
- int len;
+ socklen_t len;
union {
struct sockaddr sa;
struct sockaddr_in sin;
#endif
};
} len_and_sockaddr;
+enum {
+ LSA_SIZEOF_SA = sizeof(
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in sin;
+#if ENABLE_FEATURE_IPV6
+ struct sockaddr_in6 sin6;
+#endif
+ }
+ )
+};
/* Create stream socket, and allocated suitable lsa
* (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6)) */
+int xsocket_type(len_and_sockaddr **lsap, int sock_type);
int xsocket_stream(len_and_sockaddr **lsap);
-/* Create server TCP socket bound to bindaddr:port. bindaddr can be NULL,
+/* Create server socket bound to bindaddr:port. bindaddr can be NULL,
* numeric IP ("N.N.N.N") or numeric IPv6 address,
* and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
- * If there is no suffix, port argument is used */
-extern int create_and_bind_stream_or_die(const char *bindaddr, int port);
+ * Only if there is no suffix, port argument is used */
+int create_and_bind_stream_or_die(const char *bindaddr, int port);
+int create_and_bind_dgram_or_die(const char *bindaddr, int port);
/* Create client TCP socket connected to peer:port. Peer cannot be NULL.
* Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname,
* and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT").
* If there is no suffix, port argument is used */
-extern int create_and_connect_stream_or_die(const char *peer, int port);
+int create_and_connect_stream_or_die(const char *peer, int port);
/* Connect to peer identified by lsa */
-extern int xconnect_stream(const len_and_sockaddr *lsa);
+int xconnect_stream(const len_and_sockaddr *lsa);
/* Return malloc'ed len_and_sockaddr with socket address of host:port
* Currently will return IPv4 or IPv6 sockaddrs only
* (depending on host), but in theory nothing prevents e.g.
- * UNIX socket address being returned, IPX sockaddr etc... */
-extern len_and_sockaddr* host2sockaddr(const char *host, int port);
+ * UNIX socket address being returned, IPX sockaddr etc...
+ * On error does bb_error_msg and returns NULL */
+len_and_sockaddr* host2sockaddr(const char *host, int port);
+/* Version which dies on error */
+len_and_sockaddr* xhost2sockaddr(const char *host, int port);
+len_and_sockaddr* xdotted2sockaddr(const char *host, int port);
+#if ENABLE_FEATURE_IPV6
+/* Same, useful if you want to force family (e.g. IPv6) */
+len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af);
+len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af);
+#else
+/* [we evaluate af: think about "host_and_af2sockaddr(..., af++)"] */
+#define host_and_af2sockaddr(host, port, af) ((void)(af), host2sockaddr((host), (port)))
+#define xhost_and_af2sockaddr(host, port, af) ((void)(af), xhost2sockaddr((host), (port)))
+#endif
/* Assign sin[6]_port member if the socket is of corresponding type,
- * otherwise noop. Useful for ftp.
+ * otherwise no-op. Useful for ftp.
* NB: does NOT do htons() internally, just direct assignment. */
-extern void set_nport(len_and_sockaddr *lsa, unsigned port);
-/* Retrieve sin[6]_port or return -1 for non-inet lsa's */
-extern int get_nport(len_and_sockaddr *lsa);
-extern char* xmalloc_sockaddr2host(const struct sockaddr *sa, socklen_t salen);
-extern char* xmalloc_sockaddr2dotted(const struct sockaddr *sa, socklen_t salen);
+void set_nport(len_and_sockaddr *lsa, unsigned port);
+/* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */
+int get_nport(const struct sockaddr *sa);
+/* Reverse DNS. Returns NULL on failure. */
+char* xmalloc_sockaddr2host(const struct sockaddr *sa, socklen_t salen);
+/* This one doesn't append :PORTNUM */
+char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa, socklen_t salen);
+/* This one also doesn't fall back to dotted IP (returns NULL) */
+char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa, socklen_t salen);
+/* inet_[ap]ton on steroids */
+char* xmalloc_sockaddr2dotted(const struct sockaddr *sa, socklen_t salen);
+char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa, socklen_t salen);
+// "old" (ipv4 only) API
+// users: traceroute.c hostname.c - use _list_ of all IPs
+struct hostent *xgethostbyname(const char *name);
+// Also mount.c and inetd.c are using gethostbyname(),
+// + inet_common.c has additional IPv4-only stuff
+
+
+void socket_want_pktinfo(int fd);
+ssize_t send_to_from(int fd, void *buf, size_t len, int flags,
+ const struct sockaddr *from, const struct sockaddr *to,
+ socklen_t tolen);
+ssize_t recv_from_to(int fd, void *buf, size_t len, int flags,
+ struct sockaddr *from, struct sockaddr *to,
+ socklen_t sa_size);
extern char *xstrdup(const char *s);
//int LONE_DASH(const char *s) { return s[0] == '-' && !s[1]; }
//static ATTRIBUTE_ALWAYS_INLINE
//int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; }
-#define LONE_DASH(s) ((s)[0] == '-' && !(s)[1])
+#define LONE_DASH(s) ((s)[0] == '-' && !(s)[1])
#define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
-#define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1])
+#define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1])
#define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1])
+#define DOT_OR_DOTDOT(s) ((s)[0] == '.' && (!(s)[1] || ((s)[1] == '.' && !(s)[2])))
/* dmalloc will redefine these to it's own implementation. It is safe
* to have the prototypes here unconditionally. */
+extern void *malloc_or_warn(size_t size);
extern void *xmalloc(size_t size);
-extern void *xrealloc(void *old, size_t size);
extern void *xzalloc(size_t size);
+extern void *xrealloc(void *old, size_t size);
extern ssize_t safe_read(int fd, void *buf, size_t count);
extern ssize_t full_read(int fd, void *buf, size_t count);
/* "Opens" stdin if filename is special, else just opens file: */
extern FILE *fopen_or_warn_stdin(const char *filename);
+/* Convert each alpha char in str to lower-case */
+extern char* str_tolower(char *str);
-extern void utoa_to_buf(unsigned n, char *buf, unsigned buflen);
-extern char *utoa(unsigned n);
-extern void itoa_to_buf(int n, char *buf, unsigned buflen);
-extern char *itoa(int n);
-extern void smart_ulltoa5(unsigned long long ul, char buf[5]);
-/* Put a string of hex bytes (ala "1b"), return advanced pointer */
-extern char *bin2hex(char *buf, const char *cp, int count);
+char *utoa(unsigned n);
+char *itoa(int n);
+/* Returns a pointer past the formatted number, does NOT null-terminate */
+char *utoa_to_buf(unsigned n, char *buf, unsigned buflen);
+char *itoa_to_buf(int n, char *buf, unsigned buflen);
+void smart_ulltoa5(unsigned long long ul, char buf[5]);
+//TODO: provide pointer to buf (avoid statics)?
+const char *make_human_readable_str(unsigned long long size,
+ unsigned long block_size, unsigned long display_unit);
+/* Put a string of hex bytes ("1b2e66fe"...), return advanced pointer */
+char *bin2hex(char *buf, const char *cp, int count);
struct suffix_mult {
const char *suffix;
/* 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 xuname2uid(const char *name);
-extern long xgroup2gid(const char *name);
+long xuname2uid(const char *name);
+long xgroup2gid(const char *name);
/* wrapper: allows string to contain numeric uid or gid */
-extern unsigned long get_ug_id(const char *s, long (*xname2id)(const char *));
+unsigned long get_ug_id(const char *s, long (*xname2id)(const char *));
/* from chpst. Does not die, returns 0 on failure */
struct bb_uidgid_t {
uid_t uid;
gid_t gid;
};
-extern int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok);
+/* always sets uid and gid */
+int get_uidgid(struct bb_uidgid_t*, const char*, int numeric_ok);
+/* chown-like handling of "user[:[group]" */
+void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group);
/* what is this? */
/*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);
+char *bb_getpwuid(char *name, long uid, int bufsize);
+char *bb_getgrgid(char *group, long gid, int bufsize);
+/* versions which cache results (useful for ps, ls etc) */
+const char* get_cached_username(uid_t uid);
+const char* get_cached_groupname(gid_t gid);
+void clear_username_cache(void);
+/* internally usernames are saved in fixed-sized char[] buffers */
+enum { USERNAME_MAX_SIZE = 16 - sizeof(int) };
+
+
+struct bb_applet;
+int execable_file(const char *name);
+char *find_execable(const char *filename);
+int exists_execable(const char *filename);
+
+#if ENABLE_FEATURE_PREFER_APPLETS
+int bb_execvp(const char *file, char *const argv[]);
+#define BB_EXECVP(prog,cmd) bb_execvp(prog,cmd)
+#define BB_EXECLP(prog,cmd,...) \
+ execlp((find_applet_by_name(prog)) ? CONFIG_BUSYBOX_EXEC_PATH : prog, \
+ cmd, __VA_ARGS__)
+#else
+#define BB_EXECVP(prog,cmd) execvp(prog,cmd)
+#define BB_EXECLP(prog,cmd,...) execlp(prog,cmd, __VA_ARGS__)
+#endif
+/* NOMMU friendy fork+exec */
+pid_t spawn(char **argv);
+pid_t xspawn(char **argv);
+
+/* Unlike waitpid, waits ONLY for one process,
+ * It's safe to pass negative 'pids' from failed [v]fork -
+ * wait4pid will return -1 (and will not clobber [v]fork's errno).
+ * IOW: rc = wait4pid(spawn(argv));
+ * if (rc < 0) bb_perror_msg("%s", argv[0]);
+ * if (rc > 0) bb_error_msg("exit code: %d", rc);
+ */
+int wait4pid(int pid);
+int wait_pid(int *wstat, int pid);
+int wait_nohang(int *wstat);
+#define wait_crashed(w) ((w) & 127)
+#define wait_exitcode(w) ((w) >> 8)
+#define wait_stopsig(w) ((w) >> 8)
+#define wait_stopped(w) (((w) & 127) == 127)
+/* wait4pid(spawn(argv)) + NOFORK/NOEXEC (if configured) */
+int spawn_and_wait(char **argv);
+struct nofork_save_area {
+ const struct bb_applet *current_applet;
+ int xfunc_error_retval;
+ uint32_t option_mask32;
+ int die_sleep;
+ smallint saved;
+};
+void save_nofork_data(struct nofork_save_area *save);
+void restore_nofork_data(struct nofork_save_area *save);
+/* Does NOT check that applet is NOFORK, just blindly runs it */
+int run_nofork_applet(const struct bb_applet *a, char **argv);
+int run_nofork_applet_prime(struct nofork_save_area *old, const struct bb_applet *a, char **argv);
+/* Helpers for daemonization.
+ *
+ * bb_daemonize(flags) = daemonize, does not compile on NOMMU
+ *
+ * bb_daemonize_or_rexec(flags, argv) = daemonizes on MMU (and ignores argv),
+ * rexec's itself on NOMMU with argv passed as command line.
+ * Thus bb_daemonize_or_rexec may cause your <applet>_main() to be re-executed
+ * from the start. (It will detect it and not reexec again second time).
+ * You have to audit carefully that you don't do something twice as a result
+ * (opening files/sockets, parsing config files etc...)!
+ *
+ * Both of the above will redirect fd 0,1,2 to /dev/null and drop ctty
+ * (will do setsid()).
+ *
+ * forkexit_or_rexec(argv) = bare-bones "fork + parent exits" on MMU,
+ * "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid().
+ * Currently used for openvt. On MMU ignores argv.
+ *
+ * Helper for network daemons in foreground mode:
+ *
+ * bb_sanitize_stdio() = make sure that fd 0,1,2 are opened by opening them
+ * to /dev/null if they are not.
+ */
+enum {
+ DAEMON_CHDIR_ROOT = 1,
+ DAEMON_DEVNULL_STDIO = /* 2 */ 0, /* no users so far */
+ DAEMON_CLOSE_EXTRA_FDS = 4,
+ DAEMON_ONLY_SANITIZE = 8, /* internal use */
+};
+#if BB_MMU
+ void forkexit_or_rexec(void);
+# define forkexit_or_rexec(argv) forkexit_or_rexec()
+# define bb_daemonize_or_rexec(flags, argv) bb_daemonize_or_rexec(flags)
+# define bb_daemonize(flags) bb_daemonize_or_rexec(flags, bogus)
+#else
+ void forkexit_or_rexec(char **argv);
+ extern bool re_execed;
+# define fork() BUG_fork_is_unavailable_on_nommu()
+# define daemon(a,b) BUG_daemon_is_unavailable_on_nommu()
+# define bb_daemonize(a) BUG_bb_daemonize_is_unavailable_on_nommu()
+#endif
+void bb_daemonize_or_rexec(int flags, char **argv);
+void bb_sanitize_stdio(void);
+
+
+// TODO: always error out?
enum { BB_GETOPT_ERROR = 0x80000000 };
extern const char *opt_complementary;
#if ENABLE_GETOPT_LONG
extern uint32_t getopt32(int argc, char **argv, const char *applet_opts, ...);
-typedef struct llist_s {
+typedef struct llist_t {
char *data;
- struct llist_s *link;
+ struct llist_t *link;
} llist_t;
-extern void llist_add_to(llist_t **old_head, void *data);
-extern void llist_add_to_end(llist_t **list_head, void *data);
-extern void *llist_pop(llist_t **elm);
-extern void llist_free(llist_t *elm, void (*freeit)(void *data));
-extern llist_t* rev_llist(llist_t *list);
+void llist_add_to(llist_t **old_head, void *data);
+void llist_add_to_end(llist_t **list_head, void *data);
+void *llist_pop(llist_t **elm);
+void llist_unlink(llist_t **head, llist_t *elm);
+void llist_free(llist_t *elm, void (*freeit)(void *data));
+llist_t *llist_rev(llist_t *list);
+/* BTW, surprisingly, changing API to
+ * llist_t *llist_add_to(llist_t *old_head, void *data)
+ * etc does not result in smaller code... */
+
+
+#if ENABLE_FEATURE_PIDFILE
+int write_pidfile(const char *path);
+#define remove_pidfile(f) ((void)unlink(f))
+#else
+/* Why? #defining it to 1 gives "warning: statement with no effect"... */
+static ATTRIBUTE_ALWAYS_INLINE int write_pidfile(const char *path) { return 1; }
+#define remove_pidfile(f) ((void)0)
+#endif
enum {
LOGMODE_NONE = 0,
LOGMODE_BOTH = LOGMODE_SYSLOG + LOGMODE_STDIO,
};
extern const char *msg_eol;
-extern int logmode;
+extern smallint logmode;
extern int die_sleep;
extern int xfunc_error_retval;
-extern void sleep_and_die(void) ATTRIBUTE_NORETURN;
+extern jmp_buf die_jmp;
+extern void xfunc_die(void) ATTRIBUTE_NORETURN;
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)));
/* applets which are useful from another applets */
-extern int bb_cat(char** argv);
-extern int bb_echo(char** argv);
-extern int bb_test(int argc, char** argv);
+int bb_cat(char** argv);
+int bb_echo(char** argv);
+int bb_test(int argc, char** argv);
+int kill_main(int argc, char **argv);
+#if ENABLE_ROUTE
+void bb_displayroutes(int noresolve, int netstatfmt);
+#endif
+int chown_main(int argc, char **argv);
+#if ENABLE_GUNZIP
+int gunzip_main(int argc, char **argv);
+#endif
+int bbunpack(char **argv,
+ char* (*make_new_name)(char *filename),
+ USE_DESKTOP(long long) int (*unpacker)(void)
+);
/* Networking */
int create_icmp_socket(void);
int create_icmp6_socket(void);
/* interface.c */
-struct aftype;
-struct hwtype;
+/* This structure defines protocol families and their handlers. */
+struct aftype {
+ const char *name;
+ const char *title;
+ int af;
+ int alen;
+ char *(*print) (unsigned char *);
+ const char *(*sprint) (struct sockaddr *, int numeric);
+ int (*input) (/*int type,*/ const char *bufp, struct sockaddr *);
+ void (*herror) (char *text);
+ int (*rprint) (int options);
+ int (*rinput) (int typ, int ext, char **argv);
+
+ /* may modify src */
+ int (*getmask) (char *src, struct sockaddr * mask, char *name);
+};
+/* This structure defines hardware protocols and their handlers. */
+struct hwtype {
+ const char *name;
+ const char *title;
+ int type;
+ int alen;
+ char *(*print) (unsigned char *);
+ int (*input) (const char *, struct sockaddr *);
+ int (*activate) (int fd);
+ int suppress_null_addr;
+};
extern int interface_opt_a;
int display_interfaces(char *ifname);
-struct aftype *get_aftype(const char *name);
+const struct aftype *get_aftype(const char *name);
const struct hwtype *get_hwtype(const char *name);
const struct hwtype *get_hwntype(int type);
#ifndef BUILD_INDIVIDUAL
-extern struct BB_applet *find_applet_by_name(const char *name);
-extern void run_applet_by_name(const char *name, int argc, char **argv);
+extern const struct bb_applet *find_applet_by_name(const char *name);
+/* Returns only if applet is not found. */
+extern void run_applet_and_exit(const char *name, char **argv);
+extern void run_current_applet_and_exit(char **argv) ATTRIBUTE_NORETURN;
#endif
+extern int match_fstype(const struct mntent *mt, const char *fstypes);
extern struct mntent *find_mount_point(const char *name, const char *table);
extern void erase_mtab(const char * name);
extern unsigned int tty_baud_to_value(speed_t speed);
extern int set_loop(char **device, const char *file, unsigned long long offset);
-const char *make_human_readable_str(unsigned long long size,
- unsigned long block_size, unsigned long display_unit);
-
+//TODO: pass buf pointer or return allocated buf (avoid statics)?
char *bb_askpass(int timeout, const char * prompt);
int bb_ask_confirmation(void);
int klogctl(int type, char * b, int len);
char *concat_path_file(const char *path, const char *filename);
char *concat_subpath_file(const char *path, const char *filename);
+/* NB: can violate const-ness (similarly to strchr) */
char *last_char_is(const char *s, int c);
-int execable_file(const char *name);
-char *find_execable(const char *filename);
-int exists_execable(const char *filename);
USE_DESKTOP(long long) int uncompress(int fd_in, int fd_out);
int inflate(int in, int out);
-/* NB: returns port in host byte order */
-unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port);
-void bb_lookup_host(struct sockaddr_in *s_in, const char *host);
-
int bb_make_directory(char *path, long mode, int flags);
int get_signum(const char *name);
#if ENABLE_SELINUX
extern void renew_current_security_context(void);
extern void set_current_security_context(security_context_t sid);
+extern context_t set_security_context_component(security_context_t cur_context,
+ char *user, char *role, char *type, char *range);
+extern void setfscreatecon_or_die(security_context_t scontext);
#endif
+extern void selinux_or_die(void);
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 int index_in_substr_array(const char * const string_array[], const char *key);
extern void print_login_issue(const char *issue_file, const char *tty);
extern void print_login_prompt(void);
-#ifdef BB_NOMMU
-extern void vfork_daemon(int nochdir, int noclose);
-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);
-int is_in_ino_dev_hashtable(const struct stat *statbuf, char **name);
+extern void crypt_make_salt(char *p, int cnt);
+
+int get_terminal_width_height(const int fd, int *width, int *height);
+
+char *is_in_ino_dev_hashtable(const struct stat *statbuf);
void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
void reset_ino_dev_hashtable(void);
#ifdef __GLIBC__
/* At least glibc has horrendously large inline for this, so wrap it */
-extern unsigned long long bb_makedev(unsigned int major, unsigned int minor);
+unsigned long long bb_makedev(unsigned int major, unsigned int minor);
#undef makedev
#define makedev(a,b) bb_makedev(a,b)
#endif
+#if ENABLE_FEATURE_EDITING
+/* It's NOT just ENABLEd or disabled. It's a number: */
+#ifdef CONFIG_FEATURE_EDITING_HISTORY
+#define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
+#else
+#define MAX_HISTORY 0
+#endif
+typedef struct line_input_t {
+ int flags;
+ const char *path_lookup;
+#if MAX_HISTORY
+ int cnt_history;
+ int cur_history;
+ USE_FEATURE_EDITING_SAVEHISTORY(const char *hist_file;)
+ char *history[MAX_HISTORY + 1];
+#endif
+} line_input_t;
+enum {
+ DO_HISTORY = 1 * (MAX_HISTORY > 0),
+ SAVE_HISTORY = 2 * (MAX_HISTORY > 0) * ENABLE_FEATURE_EDITING_SAVEHISTORY,
+ TAB_COMPLETION = 4 * ENABLE_FEATURE_TAB_COMPLETION,
+ USERNAME_COMPLETION = 8 * ENABLE_FEATURE_USERNAME_COMPLETION,
+ VI_MODE = 0x10 * ENABLE_FEATURE_EDITING_VI,
+ WITH_PATH_LOOKUP = 0x20,
+ FOR_SHELL = DO_HISTORY | SAVE_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION,
+};
+line_input_t *new_line_input_t(int flags);
+int read_line_input(const char* prompt, char* command, int maxsize, line_input_t *state);
+#else
+int read_line_input(const char* prompt, char* command, int maxsize);
+#define read_line_input(prompt, command, maxsize, state) \
+ read_line_input(prompt, command, maxsize)
+#endif
+
+
#ifndef COMM_LEN
#ifdef TASK_COMM_LEN
enum { COMM_LEN = TASK_COMM_LEN };
DIR *dir;
/* Fields are set to 0/NULL if failed to determine (or not requested) */
char *cmd;
- unsigned long rss;
+ unsigned vsz, rss; /* we round it to kbytes */
unsigned long stime, utime;
unsigned pid;
unsigned ppid;
unsigned sid;
unsigned uid;
unsigned gid;
- /* basename of executable file in call to exec(2), size from */
- /* sizeof(task_struct.comm) in /usr/include/linux/sched.h */
char state[4];
+ char tty_str[8]; /* "maj,min" or "?" */
+ /* basename of executable in exec(2), read from /proc/N/stat, */
+ /* size from sizeof(task_struct.comm) in /usr/include/linux/sched.h */
char comm[COMM_LEN];
-// user/group? - use passwd/group parsing functions
+ /* user/group? - use passwd/group parsing functions */
} procps_status_t;
enum {
PSSCAN_PID = 1 << 0,
PSSCAN_COMM = 1 << 5,
PSSCAN_CMD = 1 << 6,
PSSCAN_STATE = 1 << 7,
- PSSCAN_RSS = 1 << 8,
- PSSCAN_STIME = 1 << 9,
- PSSCAN_UTIME = 1 << 10,
+ PSSCAN_VSZ = 1 << 8,
+ PSSCAN_RSS = 1 << 9,
+ PSSCAN_STIME = 1 << 10,
+ PSSCAN_UTIME = 1 << 11,
+ PSSCAN_TTY = 1 << 12,
/* These are all retrieved from proc/NN/stat in one go: */
PSSCAN_STAT = PSSCAN_PPID | PSSCAN_PGID | PSSCAN_SID
| PSSCAN_COMM | PSSCAN_STATE
- | PSSCAN_RSS | PSSCAN_STIME | PSSCAN_UTIME,
+ | PSSCAN_VSZ | PSSCAN_RSS
+ | PSSCAN_STIME | PSSCAN_UTIME
+ | PSSCAN_TTY,
};
procps_status_t* alloc_procps_scan(int flags);
void free_procps_scan(procps_status_t* sp);
procps_status_t* procps_scan(procps_status_t* sp, int flags);
pid_t *find_pid_by_name(const char* procName);
pid_t *pidlist_reverse(pid_t *pidList);
-void clear_username_cache(void);
-const char* get_cached_username(uid_t uid);
-const char* get_cached_groupname(gid_t gid);
extern const char bb_uuenc_tbl_base64[];
void md5_hash(const void *data, size_t length, md5_ctx_t *ctx);
void *md5_end(void *resbuf, md5_ctx_t *ctx);
-uint32_t *crc32_filltable(int endian);
+uint32_t *crc32_filltable(uint32_t *tbl256, int endian);
-enum { /* DO NOT CHANGE THESE VALUES! cp.c depends on them. */
+enum { /* DO NOT CHANGE THESE VALUES! cp.c, mv.c, install.c depend on them. */
FILEUTILS_PRESERVE_STATUS = 1,
FILEUTILS_DEREFERENCE = 2,
FILEUTILS_RECUR = 4,
FILEUTILS_INTERACTIVE = 0x10,
FILEUTILS_MAKE_HARDLINK = 0x20,
FILEUTILS_MAKE_SOFTLINK = 0x40,
+#if ENABLE_SELINUX
+ FILEUTILS_PRESERVE_SECURITY_CONTEXT = 0x80,
+ FILEUTILS_SET_SECURITY_CONTEXT = 0x100
+#endif
};
-#define FILEUTILS_CP_OPTSTR "pdRfils"
+#define FILEUTILS_CP_OPTSTR "pdRfils" USE_SELINUX("c")
+extern const struct bb_applet *current_applet;
extern const char *applet_name;
extern const char BB_BANNER[];
extern const char bb_msg_standard_output[];
extern const char bb_str_default[];
-/* NB: (bb_hexdigits_upcase[i] | 0x10) -> lowercase hex digit */
+/* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */
extern const char bb_hexdigits_upcase[];
extern const char bb_path_mtab_file[];
extern const char bb_path_wtmp_file[];
extern const char bb_dev_null[];
+extern const int const_int_0;
+extern const int const_int_1;
+
+
#ifndef BUFSIZ
#define BUFSIZ 4096
#endif
-extern char bb_common_bufsiz1[BUFSIZ+1];
+/* Providing hard guarantee on minimum size (think of BUFSIZ == 128) */
+extern char bb_common_bufsiz1[(BUFSIZ > 256*sizeof(void*) ? BUFSIZ : 256*sizeof(void*)) + 1];
+/* This struct is deliberately not defined. */
+/* See docs/keep_data_small.txt */
+struct globals;
+/* '*const' ptr makes gcc optimize code much better.
+ * Magic prevents ptr_to_globals from going into rodata
+ * If you want to assign a value, use PTR_TO_GLOBALS = xxx */
+extern struct globals *const ptr_to_globals;
+#define PTR_TO_GLOBALS (*(struct globals**)&ptr_to_globals)
+
/* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don't use it,
* use bb_default_login_shell and following defines.
/* The following devices are the same on devfs and non-devfs systems. */
#define CURRENT_TTY "/dev/tty"
-#define CONSOLE_DEV "/dev/console"
+#define DEV_CONSOLE "/dev/console"
#ifndef RB_POWER_OFF