+/* Stupid gcc always includes its own builtin strlen()... */
+extern size_t bb_strlen(const char *string);
+#define strlen(x) bb_strlen(x)
+
+void bb_xasprintf(char **string_ptr, const char *format, ...) __attribute__ ((format (printf, 2, 3)));
+
+
+#define FAIL_DELAY 3
+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
+ , security_id_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);
+
+typedef struct {
+ int pid;
+ char user[9];
+ char state[4];
+ unsigned long rss;
+ int ppid;
+#ifdef FEATURE_CPU_USAGE_PERCENTAGE
+ unsigned pcpu;
+ unsigned long stime, utime;
+#endif
+ char *cmd;
+
+ /* basename of executable file in call to exec(2),
+ size from kernel headers */
+ char short_cmd[16];
+} procps_status_t;
+
+extern procps_status_t * procps_scan(int save_user_arg0
+#ifdef CONFIG_SELINUX
+ , int use_selinux, security_id_t *sid
+#endif
+);
+extern unsigned short compare_string_array(const char *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 void print_login_issue(const char *issue_file, const char *tty);
+extern void print_login_prompt(void);
+
+extern void vfork_daemon_rexec(int argc, char **argv, char *foreground_opt);
+extern void get_terminal_width_height(int fd, int *width, int *height);
+extern unsigned long get_ug_id(const char *s, long (*my_getxxnam)(const char *));
+extern void xregcomp(regex_t *preg, const char *regex, int cflags);
+
+#define HASH_SHA1 1
+#define HASH_MD5 2
+extern int hash_fd(int fd, const off_t size, const uint8_t hash_algo, uint8_t *hashval);
+
+