/* libguestfs * Copyright (C) 2009-2012 Red Hat Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef GUESTFS_INTERNAL_H_ #define GUESTFS_INTERNAL_H_ #include #include #include #include #include #ifdef HAVE_LIBVIRT #include #endif #include "hash.h" #ifndef SOCK_CLOEXEC #define SOCK_CLOEXEC 0 #endif #define STREQ(a,b) (strcmp((a),(b)) == 0) #define STRCASEEQ(a,b) (strcasecmp((a),(b)) == 0) #define STRNEQ(a,b) (strcmp((a),(b)) != 0) #define STRCASENEQ(a,b) (strcasecmp((a),(b)) != 0) #define STREQLEN(a,b,n) (strncmp((a),(b),(n)) == 0) #define STRCASEEQLEN(a,b,n) (strncasecmp((a),(b),(n)) == 0) #define STRNEQLEN(a,b,n) (strncmp((a),(b),(n)) != 0) #define STRCASENEQLEN(a,b,n) (strncasecmp((a),(b),(n)) != 0) #define STRPREFIX(a,b) (strncmp((a),(b),strlen((b))) == 0) #define STRSUFFIX(a,b) (strlen((a)) >= strlen((b)) && STREQ((a)+strlen((a))-strlen((b)),(b))) #define _(str) dgettext(PACKAGE, (str)) #define N_(str) dgettext(PACKAGE, (str)) #if ENABLE_PROBES #include /* NB: The 'name' parameter is a literal identifier, NOT a string! */ #define TRACE0(name) DTRACE_PROBE(guestfs, name) #define TRACE1(name, arg1) \ DTRACE_PROBE(guestfs, name, (arg1)) #define TRACE2(name, arg1, arg2) \ DTRACE_PROBE(guestfs, name, (arg1), (arg2)) #define TRACE3(name, arg1, arg2, arg3) \ DTRACE_PROBE(guestfs, name, (arg1), (arg2), (arg3)) #define TRACE4(name, arg1, arg2, arg3, arg4) \ DTRACE_PROBE(guestfs, name, (arg1), (arg2), (arg3), (arg4)) #else /* !ENABLE_PROBES */ #define TRACE0(name) #define TRACE1(name, arg1) #define TRACE2(name, arg1, arg2) #define TRACE3(name, arg1, arg2, arg3) #define TRACE4(name, arg1, arg2, arg3, arg4) #endif #define TMP_TEMPLATE_ON_STACK(g,var) \ char *ttos_tmpdir = guestfs_get_tmpdir (g); \ char var[strlen (ttos_tmpdir) + 32]; \ sprintf (var, "%s/libguestfsXXXXXX", ttos_tmpdir); \ free (ttos_tmpdir) #ifdef __APPLE__ #define UNIX_PATH_MAX 104 #else #define UNIX_PATH_MAX 108 #endif #ifndef MAX #define MAX(a,b) ((a)>(b)?(a):(b)) #endif #ifdef __APPLE__ #define xdr_uint32_t xdr_u_int32_t #endif /* Some limits on what the inspection code will read, for safety. */ /* Small text configuration files. * * The upper limit is for general files that we grep or download. The * largest such file is probably "txtsetup.sif" from Windows CDs * (~500K). This number has to be larger than any legitimate file and * smaller than the protocol message size. * * The lower limit is for files parsed by Augeas on the daemon side, * where Augeas is running in reduced memory and can potentially * create a lot of metadata so we really need to be careful about * those. */ #define MAX_SMALL_FILE_SIZE (2 * 1000 * 1000) #define MAX_AUGEAS_FILE_SIZE (100 * 1000) /* Maximum RPM or dpkg database we will download to /tmp. RPM * 'Packages' database can get very large: 70 MB is roughly the * standard size for a new Fedora install, and after lots of package * installation/removal I have seen well over 100 MB databases. */ #define MAX_PKG_DB_SIZE (300 * 1000 * 1000) /* Maximum size of Windows explorer.exe. 2.6MB on Windows 7. */ #define MAX_WINDOWS_EXPLORER_SIZE (4 * 1000 * 1000) /* GuestFS handle and connection. */ enum state { CONFIG, LAUNCHING, READY, NO_HANDLE }; /* Attach method. */ enum attach_method { ATTACH_METHOD_APPLIANCE, ATTACH_METHOD_LIBVIRT, ATTACH_METHOD_UNIX, }; /* Event. */ struct event { uint64_t event_bitmask; guestfs_event_callback cb; void *opaque; /* opaque2 is not exposed through the API, but is used internally to * emulate the old-style callback API. */ void *opaque2; }; /* Drives added to the handle. */ struct drive { char *path; int readonly; char *format; char *iface; char *name; char *disk_label; bool use_cache_none; void *priv; /* Data used by attach method. */ void (*free_priv) (void *); }; /* Extra qemu parameters (from guestfs_config). */ struct qemu_param { struct qemu_param *next; char *qemu_param; char *qemu_value; /* May be NULL. */ }; /* Backend (attach-method) operations. */ struct attach_ops { int (*launch) (guestfs_h *g, const char *arg); /* Initialize and launch. */ /* Shutdown and cleanup. */ int (*shutdown) (guestfs_h *g, int check_for_errors); int (*get_pid) (guestfs_h *g); /* get-pid API. */ int (*max_disks) (guestfs_h *g); /* max-disks API. */ /* Hotplugging drives. */ int (*hot_add_drive) (guestfs_h *g, struct drive *drv, size_t drv_index); int (*hot_remove_drive) (guestfs_h *g, struct drive *drv, size_t drv_index); }; extern struct attach_ops attach_ops_appliance; extern struct attach_ops attach_ops_libvirt; extern struct attach_ops attach_ops_unix; /* Stack of old error handlers. */ struct error_cb_stack { struct error_cb_stack *next; guestfs_error_handler_cb error_cb; void * error_cb_data; }; struct guestfs_h { struct guestfs_h *next; /* Linked list of open handles. */ enum state state; /* See the state machine diagram in guestfs(3)*/ /**** Configuration of the handle. ****/ bool verbose; /* Debugging. */ bool trace; /* Trace calls. */ bool autosync; /* Autosync. */ bool direct; /* Direct mode. */ bool recovery_proc; /* Create a recovery process. */ bool enable_network; /* Enable the network. */ bool selinux; /* selinux enabled? */ bool pgroup; /* Create process group for children? */ bool close_on_exit; /* Is this handle on the atexit list? */ int smp; /* If > 1, -smp flag passed to qemu. */ int memsize; /* Size of RAM (megabytes). */ char *path; /* Path to the appliance. */ char *qemu; /* Qemu binary. */ char *append; /* Append to kernel command line. */ struct qemu_param *qemu_params; /* Extra qemu parameters. */ /* Array of drives added by add-drive* APIs. * * Before launch this list can be empty or contain some drives. * * During launch, a dummy slot may be added which represents the * slot taken up by the appliance drive. * * When hotplugging is supported by the attach method, drives can be * added to the end of this list after launch. Also hot-removing a * drive causes a NULL slot to appear in the list. * * During shutdown, this list is deleted, so that each launch gets a * fresh set of drives (however callers: don't do this, create a new * handle each time). * * Always use ITER_DRIVES macro to iterate over this list! */ struct drive **drives; size_t nr_drives; #define ITER_DRIVES(g,i,drv) \ for (i = 0; i < (g)->nr_drives; ++i) \ if (((drv) = (g)->drives[i]) != NULL) /* Attach method, and associated backend operations. */ enum attach_method attach_method; char *attach_method_arg; const struct attach_ops *attach_ops; /**** Runtime information. ****/ char *last_error; /* Last error on handle. */ int last_errnum; /* errno, or 0 if there was no errno */ /* Temporary and cache directories. */ /* The actual temporary directory - this is not created with the * handle, you have to call guestfs___lazy_make_tmpdir. */ char *tmpdir; /* Environment variables that affect tmpdir/cachedir locations. */ char *env_tmpdir; /* $TMPDIR (NULL if not set) */ char *int_tmpdir; /* $LIBGUESTFS_TMPDIR or guestfs_set_tmpdir or NULL */ char *int_cachedir; /* $LIBGUESTFS_CACHEDIR or guestfs_set_cachedir or NULL */ /* Error handler, plus stack of old error handlers. */ guestfs_error_handler_cb error_cb; void * error_cb_data; struct error_cb_stack *error_cb_stack; /* Out of memory error handler. */ guestfs_abort_cb abort_cb; /* Events. */ struct event *events; size_t nr_events; /* Information gathered by inspect_os. Must be freed by calling * guestfs___free_inspect_info. */ struct inspect_fs *fses; size_t nr_fses; /* Private data area. */ struct hash_table *pda; struct pda_entry *pda_next; /* Used by src/actions.c:trace_* functions. */ FILE *trace_fp; char *trace_buf; size_t trace_len; /* User cancelled transfer. Not signal-atomic, but it doesn't * matter for this case because we only care if it is != 0. */ int user_cancel; struct timeval launch_t; /* The time that we called guestfs_launch. */ /* Used by bindtests. */ FILE *test_fp; /* Used to generate unique numbers, eg for temp files. To use this, * '++g->unique'. Note these are only unique per-handle, not * globally unique. */ int unique; /*** Protocol. ***/ int fd[2]; /* Stdin/stdout of qemu. */ int sock; /* Daemon communications socket. */ int msg_next_serial; #if HAVE_FUSE /**** Used by the mount-local APIs. ****/ const char *localmountpoint; struct fuse *fuse; /* FUSE handle. */ int ml_dir_cache_timeout; /* Directory cache timeout. */ Hash_table *lsc_ht, *xac_ht, *rlc_ht; /* Directory cache. */ int ml_read_only; /* If mounted read-only. */ int ml_debug_calls; /* Extra debug info on each FUSE call. */ #endif #ifdef HAVE_LIBVIRT /* Used by src/libvirt-auth.c. */ #define NR_CREDENTIAL_TYPES 9 unsigned int nr_supported_credentials; int supported_credentials[NR_CREDENTIAL_TYPES]; const char *saved_libvirt_uri; /* Doesn't need to be freed. */ unsigned int nr_requested_credentials; virConnectCredentialPtr requested_credentials; #endif /**** Private data for attach-methods. ****/ /* NB: This cannot be a union because of a pathological case where * the user changes attach-method while reusing the handle to launch * multiple times (not a recommended thing to do). Some fields here * cache things across launches so that would break if we used a * union. */ struct { /* Used only by src/launch-appliance.c. */ pid_t pid; /* Qemu PID. */ pid_t recoverypid; /* Recovery process PID. */ char *qemu_help; /* Output of qemu -help. */ char *qemu_version; /* Output of qemu -version. */ char *qemu_devices; /* Output of qemu -device ? */ char **cmdline; /* Only used in child, does not need freeing. */ size_t cmdline_size; int virtio_scsi; /* See function qemu_supports_virtio_scsi */ } app; #ifdef HAVE_LIBVIRT struct { /* Used only by src/launch-libvirt.c. */ virConnectPtr conn; /* libvirt connection */ virDomainPtr dom; /* libvirt domain */ } virt; #endif }; /* Per-filesystem data stored for inspect_os. */ enum inspect_fs_content { FS_CONTENT_UNKNOWN = 0, FS_CONTENT_LINUX_ROOT, FS_CONTENT_WINDOWS_ROOT, FS_CONTENT_WINDOWS_VOLUME_WITH_APPS, FS_CONTENT_WINDOWS_VOLUME, FS_CONTENT_LINUX_BOOT, FS_CONTENT_LINUX_USR, FS_CONTENT_LINUX_USR_LOCAL, FS_CONTENT_LINUX_VAR, FS_CONTENT_FREEBSD_ROOT, FS_CONTENT_NETBSD_ROOT, FS_CONTENT_INSTALLER, FS_CONTENT_HURD_ROOT, FS_CONTENT_FREEDOS_ROOT, }; enum inspect_os_format { OS_FORMAT_UNKNOWN = 0, OS_FORMAT_INSTALLED, OS_FORMAT_INSTALLER, /* in future: supplemental disks */ }; enum inspect_os_type { OS_TYPE_UNKNOWN = 0, OS_TYPE_LINUX, OS_TYPE_WINDOWS, OS_TYPE_FREEBSD, OS_TYPE_NETBSD, OS_TYPE_HURD, OS_TYPE_DOS, OS_TYPE_OPENBSD, }; enum inspect_os_distro { OS_DISTRO_UNKNOWN = 0, OS_DISTRO_DEBIAN, OS_DISTRO_FEDORA, OS_DISTRO_REDHAT_BASED, OS_DISTRO_RHEL, OS_DISTRO_WINDOWS, OS_DISTRO_PARDUS, OS_DISTRO_ARCHLINUX, OS_DISTRO_GENTOO, OS_DISTRO_UBUNTU, OS_DISTRO_MEEGO, OS_DISTRO_LINUX_MINT, OS_DISTRO_MANDRIVA, OS_DISTRO_SLACKWARE, OS_DISTRO_CENTOS, OS_DISTRO_SCIENTIFIC_LINUX, OS_DISTRO_TTYLINUX, OS_DISTRO_MAGEIA, OS_DISTRO_OPENSUSE, OS_DISTRO_BUILDROOT, OS_DISTRO_CIRROS, OS_DISTRO_FREEDOS, OS_DISTRO_SUSE_BASED, OS_DISTRO_SLES, OS_DISTRO_OPENBSD, }; enum inspect_os_package_format { OS_PACKAGE_FORMAT_UNKNOWN = 0, OS_PACKAGE_FORMAT_RPM, OS_PACKAGE_FORMAT_DEB, OS_PACKAGE_FORMAT_PACMAN, OS_PACKAGE_FORMAT_EBUILD, OS_PACKAGE_FORMAT_PISI, OS_PACKAGE_FORMAT_PKGSRC, }; enum inspect_os_package_management { OS_PACKAGE_MANAGEMENT_UNKNOWN = 0, OS_PACKAGE_MANAGEMENT_YUM, OS_PACKAGE_MANAGEMENT_UP2DATE, OS_PACKAGE_MANAGEMENT_APT, OS_PACKAGE_MANAGEMENT_PACMAN, OS_PACKAGE_MANAGEMENT_PORTAGE, OS_PACKAGE_MANAGEMENT_PISI, OS_PACKAGE_MANAGEMENT_URPMI, OS_PACKAGE_MANAGEMENT_ZYPPER, }; struct inspect_fs { int is_root; char *device; int is_mountable; int is_swap; enum inspect_fs_content content; enum inspect_os_type type; enum inspect_os_distro distro; enum inspect_os_package_format package_format; enum inspect_os_package_management package_management; char *product_name; char *product_variant; int major_version; int minor_version; char *arch; char *hostname; char *windows_systemroot; char *windows_current_control_set; char **drive_mappings; enum inspect_os_format format; int is_live_disk; int is_netinst_disk; int is_multipart_disk; struct inspect_fstab_entry *fstab; size_t nr_fstab; }; struct inspect_fstab_entry { char *device; char *mountpoint; }; struct guestfs_message_header; struct guestfs_message_error; struct guestfs_progress; /* alloc.c */ extern void *guestfs_safe_realloc (guestfs_h *g, void *ptr, size_t nbytes); extern char *guestfs_safe_strdup (guestfs_h *g, const char *str); extern char *guestfs_safe_strndup (guestfs_h *g, const char *str, size_t n); extern void *guestfs_safe_memdup (guestfs_h *g, const void *ptr, size_t size); extern char *guestfs_safe_asprintf (guestfs_h *g, const char *fs, ...) __attribute__((format (printf,2,3))); #define safe_calloc guestfs_safe_calloc #define safe_malloc guestfs_safe_malloc #define safe_realloc guestfs_safe_realloc #define safe_strdup guestfs_safe_strdup #define safe_strndup guestfs_safe_strndup #define safe_memdup guestfs_safe_memdup #define safe_asprintf guestfs_safe_asprintf /* errors.c */ extern void guestfs___init_error_handler (guestfs_h *g); extern void guestfs_error (guestfs_h *g, const char *fs, ...) __attribute__((format (printf,2,3))); extern void guestfs_error_errno (guestfs_h *g, int errnum, const char *fs, ...) __attribute__((format (printf,3,4))); extern void guestfs_perrorf (guestfs_h *g, const char *fs, ...) __attribute__((format (printf,2,3))); extern void guestfs___warning (guestfs_h *g, const char *fs, ...) __attribute__((format (printf,2,3))); extern void guestfs___debug (guestfs_h *g, const char *fs, ...) __attribute__((format (printf,2,3))); extern void guestfs___trace (guestfs_h *g, const char *fs, ...) __attribute__((format (printf,2,3))); extern void guestfs___print_BufferIn (FILE *out, const char *buf, size_t buf_size); extern void guestfs___print_BufferOut (FILE *out, const char *buf, size_t buf_size); #define error(g,...) guestfs_error_errno((g),0,__VA_ARGS__) #define perrorf guestfs_perrorf #define warning(g,...) guestfs___warning((g),__VA_ARGS__) #define debug(g,...) \ do { if ((g)->verbose) guestfs___debug ((g),__VA_ARGS__); } while (0) /* utils.c */ extern void guestfs___free_string_list (char **); /* actions-support.c */ extern int guestfs___check_reply_header (guestfs_h *g, const struct guestfs_message_header *hdr, unsigned int proc_nr, unsigned int serial); extern int guestfs___check_appliance_up (guestfs_h *g, const char *caller); extern FILE *guestfs___trace_open (guestfs_h *g); extern void guestfs___trace_send_line (guestfs_h *g); /* match.c */ extern int guestfs___match (guestfs_h *g, const char *str, const pcre *re); extern char *guestfs___match1 (guestfs_h *g, const char *str, const pcre *re); extern int guestfs___match2 (guestfs_h *g, const char *str, const pcre *re, char **ret1, char **ret2); extern int guestfs___match3 (guestfs_h *g, const char *str, const pcre *re, char **ret1, char **ret2, char **ret3); #define match guestfs___match #define match1 guestfs___match1 #define match2 guestfs___match2 #define match3 guestfs___match3 /* proto.c */ extern int guestfs___send (guestfs_h *g, int proc_nr, uint64_t progress_hint, uint64_t optargs_bitmask, xdrproc_t xdrp, char *args); extern int guestfs___recv (guestfs_h *g, const char *fn, struct guestfs_message_header *hdr, struct guestfs_message_error *err, xdrproc_t xdrp, char *ret); extern int guestfs___recv_discard (guestfs_h *g, const char *fn); extern int guestfs___send_file (guestfs_h *g, const char *filename); extern int guestfs___recv_file (guestfs_h *g, const char *filename); extern int guestfs___send_to_daemon (guestfs_h *g, const void *v_buf, size_t n); extern int guestfs___recv_from_daemon (guestfs_h *g, uint32_t *size_rtn, void **buf_rtn); extern int guestfs___accept_from_daemon (guestfs_h *g); extern void guestfs___progress_message_callback (guestfs_h *g, const struct guestfs_progress *message); /* events.c */ extern void guestfs___call_callbacks_void (guestfs_h *g, uint64_t event); extern void guestfs___call_callbacks_message (guestfs_h *g, uint64_t event, const char *buf, size_t buf_len); extern void guestfs___call_callbacks_array (guestfs_h *g, uint64_t event, const uint64_t *array, size_t array_len); /* tmpdirs.c */ extern int guestfs___lazy_make_tmpdir (guestfs_h *g); extern void guestfs___remove_tmpdir (guestfs_h *g); extern void guestfs___recursive_remove_dir (guestfs_h *g, const char *dir); /* appliance.c */ extern int guestfs___build_appliance (guestfs_h *g, char **kernel, char **initrd, char **appliance); /* launch.c */ extern int64_t guestfs___timeval_diff (const struct timeval *x, const struct timeval *y); extern void guestfs___print_timestamped_message (guestfs_h *g, const char *fs, ...); extern void guestfs___launch_send_progress (guestfs_h *g, int perdozen); extern size_t guestfs___checkpoint_drives (guestfs_h *g); extern void guestfs___rollback_drives (guestfs_h *g, size_t); extern void guestfs___launch_failed_error (guestfs_h *g); extern void guestfs___add_dummy_appliance_drive (guestfs_h *g); extern void guestfs___free_drives (guestfs_h *g); extern char *guestfs___appliance_command_line (guestfs_h *g, const char *appliance_dev, int flags); #define APPLIANCE_COMMAND_LINE_IS_TCG 1 /* launch-appliance.c */ extern char *guestfs___drive_name (size_t index, char *ret); /* inspect.c */ extern void guestfs___free_inspect_info (guestfs_h *g); extern int guestfs___feature_available (guestfs_h *g, const char *feature); extern char *guestfs___download_to_tmp (guestfs_h *g, struct inspect_fs *fs, const char *filename, const char *basename, uint64_t max_size); extern struct inspect_fs *guestfs___search_for_root (guestfs_h *g, const char *root); /* inspect-fs.c */ extern int guestfs___is_file_nocase (guestfs_h *g, const char *); extern int guestfs___is_dir_nocase (guestfs_h *g, const char *); extern int guestfs___check_for_filesystem_on (guestfs_h *g, const char *device, int is_block, int is_partnum); extern int guestfs___parse_unsigned_int (guestfs_h *g, const char *str); extern int guestfs___parse_unsigned_int_ignore_trailing (guestfs_h *g, const char *str); extern int guestfs___parse_major_minor (guestfs_h *g, struct inspect_fs *fs); extern char *guestfs___first_line_of_file (guestfs_h *g, const char *filename); extern int guestfs___first_egrep_of_file (guestfs_h *g, const char *filename, const char *eregex, int iflag, char **ret); extern void guestfs___check_package_format (guestfs_h *g, struct inspect_fs *fs); extern void guestfs___check_package_management (guestfs_h *g, struct inspect_fs *fs); /* inspect-fs-unix.c */ extern int guestfs___check_linux_root (guestfs_h *g, struct inspect_fs *fs); extern int guestfs___check_freebsd_root (guestfs_h *g, struct inspect_fs *fs); extern int guestfs___check_netbsd_root (guestfs_h *g, struct inspect_fs *fs); extern int guestfs___check_hurd_root (guestfs_h *g, struct inspect_fs *fs); /* inspect-fs-windows.c */ extern char *guestfs___case_sensitive_path_silently (guestfs_h *g, const char *); extern int guestfs___has_windows_systemroot (guestfs_h *g); extern int guestfs___check_windows_root (guestfs_h *g, struct inspect_fs *fs); /* inspect-fs-cd.c */ extern int guestfs___check_installer_root (guestfs_h *g, struct inspect_fs *fs); extern int guestfs___check_installer_iso (guestfs_h *g, struct inspect_fs *fs, const char *device); /* dbdump.c */ typedef int (*guestfs___db_dump_callback) (guestfs_h *g, const unsigned char *key, size_t keylen, const unsigned char *value, size_t valuelen, void *opaque); extern int guestfs___read_db_dump (guestfs_h *g, const char *dumpfile, void *opaque, guestfs___db_dump_callback callback); /* lpj.c */ extern int guestfs___get_lpj (guestfs_h *g); /* fuse.c */ #if HAVE_FUSE extern void guestfs___free_fuse (guestfs_h *g); #endif /* libvirt-auth.c */ #ifdef HAVE_LIBVIRT extern virConnectPtr guestfs___open_libvirt_connection (guestfs_h *g, const char *uri, unsigned int flags); #endif /* osinfo.c */ struct osinfo { /* Data provided by libosinfo database. */ enum inspect_os_type type; enum inspect_os_distro distro; char *product_name; int major_version; int minor_version; char *arch; int is_live_disk; #if 0 /* Not yet available in libosinfo database. */ char *product_variant; int is_netinst_disk; int is_multipart_disk; #endif /* The regular expressions used to match ISOs. */ pcre *re_system_id; pcre *re_volume_id; pcre *re_publisher_id; pcre *re_application_id; }; extern int guestfs___osinfo_map (guestfs_h *g, const struct guestfs_isoinfo *isoinfo, const struct osinfo **osinfo_ret); /* command.c */ struct command; typedef void (*cmd_stdout_callback) (guestfs_h *g, void *data, const char *line, size_t len); extern struct command *guestfs___new_command (guestfs_h *g); extern void guestfs___cmd_add_arg (struct command *, const char *arg); extern void guestfs___cmd_add_arg_format (struct command *, const char *fs, ...) __attribute__((format (printf,2,3))); extern void guestfs___cmd_add_string_unquoted (struct command *, const char *str); extern void guestfs___cmd_add_string_quoted (struct command *, const char *str); extern void guestfs___cmd_set_stdout_callback (struct command *, cmd_stdout_callback stdout_callback, void *data, unsigned flags); #define CMD_STDOUT_FLAG_LINE_BUFFER 0 #define CMD_STDOUT_FLAG_UNBUFFERED 1 #define CMD_STDOUT_FLAG_WHOLE_BUFFER 2 extern void guestfs___cmd_set_stderr_to_stdout (struct command *); extern void guestfs___cmd_clear_capture_errors (struct command *); extern int guestfs___cmd_run (struct command *); extern void guestfs___cmd_close (struct command *); #endif /* GUESTFS_INTERNAL_H_ */