*
* 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 the GPL version 2, see the file LICENSE in this tarball.
*/
#ifndef __LIBBUSYBOX_H__
#if ENABLE_SELINUX
#include <selinux/selinux.h>
+#include <selinux/context.h>
#endif
#if ENABLE_LOCALE_SUPPORT
/* This structure defines protocol families and their handlers. */
struct aftype {
- char *name;
- char *title;
+ const char *name;
+ const char *title;
int af;
int alen;
char *(*print) (unsigned char *);
/* This structure defines hardware protocols and their handlers. */
struct hwtype {
- char *name;
- char *title;
+ const char *name;
+ const char *title;
int type;
int alen;
char *(*print) (unsigned char *);
extern int sysinfo(struct sysinfo* info);
-/* Size-saving "small" ints (arch-dependent) */
-#if defined(i386) || defined (__mips__)
-/* 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
-
-
extern void chomp(char *s);
extern void trim(char *s);
extern char *skip_whitespace(const char *);
extern char *skip_non_whitespace(const char *);
-extern const char *bb_mode_string(int mode);
+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);
void* userData, int 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);
extern DIR *xopendir(const char *path);
extern 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 void xstat(const 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_stdio_maybe_daemonize(int daemonize);
+extern void bb_sanitize_stdio(void);
+/* NB: be careful: dont open syslog/network sockets before bb_daemonize */
+extern void bb_daemonize(void);
extern void xchdir(const char *path);
extern void xsetenv(const char *key, const char *value);
extern int xopen(const char *pathname, int flags);
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);
-/* Create server TCP 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);
-/* 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 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);
+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;
+/* Create stream socket, and allocated suitable lsa
+ * (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6)) */
+int xsocket_stream(len_and_sockaddr **lsap);
+/* Create server TCP 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 */
+int create_and_bind_stream_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 */
+int create_and_connect_stream_or_die(const char *peer, int port);
+/* Connect to peer identified by 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 no-op. Useful for ftp.
+ * NB: does NOT do htons() internally, just direct assignment. */
+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 len_and_sockaddr *lsa);
+/* 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
+struct hostent *xgethostbyname(const char *name);
+// Also inetd.c and inetd.c are using gethostbyname(),
+// + inet_common.c has additional IPv4-only stuff
extern char *xstrdup(const char *s);
extern FILE *fopen_or_warn_stdin(const char *filename);
-extern void smart_ulltoa5(unsigned long long ul, char buf[5]);
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);
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;
+ 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) };
enum { BB_GETOPT_ERROR = 0x80000000 };
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_unlink(llist_t **head, llist_t *elm);
extern void llist_free(llist_t *elm, void (*freeit)(void *data));
-extern llist_t* rev_llist(llist_t *list);
+extern llist_t* llist_rev(llist_t *list);
enum {
LOGMODE_NONE = 0,
/* 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);
+#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 */
char *find_execable(const char *filename);
int exists_execable(const char *filename);
+#if ENABLE_FEATURE_EXEC_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
+
USE_DESKTOP(long long) int uncompress(int fd_in, int fd_out);
int inflate(int in, int out);
-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 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 int get_terminal_width_height(const int fd, int *width, int *height);
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);
#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
+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
+};
+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,
+};
+typedef struct line_input_t line_input_t;
+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 long vsz;
unsigned long stime, utime;
unsigned pid;
unsigned ppid;
PSSCAN_COMM = 1 << 5,
PSSCAN_CMD = 1 << 6,
PSSCAN_STATE = 1 << 7,
- PSSCAN_RSS = 1 << 8,
+ PSSCAN_VSZ = 1 << 8,
PSSCAN_STIME = 1 << 9,
PSSCAN_UTIME = 1 << 10,
/* 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_STIME | PSSCAN_UTIME,
};
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[];
uint32_t *crc32_filltable(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 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] | 0x20) -> lowercase hex digit */
+extern const char bb_hexdigits_upcase[];
extern const char bb_path_mtab_file[];
extern const char bb_path_nologin_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
/* 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
projects / oweals / busybox.git / blobdiff