extern char **do_strings_e (const char *encoding, const char *path);
extern char *do_hexdump (const char *path);
extern int do_zerofree (const char *device);
+extern int do_pvresize (const char *device);
+extern int do_sfdisk_N (const char *device, int n, int cyls, int heads, int sectors, const char *line);
+extern char *do_sfdisk_l (const char *device);
+extern char *do_sfdisk_kernel_geometry (const char *device);
+extern char *do_sfdisk_disk_geometry (const char *device);
+extern int do_vg_activate_all (int activate);
+extern int do_vg_activate (int activate, char * const* const volgroups);
+extern int do_lvresize (const char *device, int mbytes);
+extern int do_resize2fs (const char *device);
+extern char **do_find (const char *directory);
+extern int do_e2fsck_f (const char *device);