#include "tar.h"
#include <TargetConditionals.h>
#define HAVE_QUARANTINE (!TARGET_OS_EMBEDDED)
#if HAVE_QUARANTINE
#include <quarantine.h>
#endif
#define CHKBLANKS " "
#define NAME_FIELD_SIZE 100
#define PREFIX_FIELD_SIZE 155
#define UNAME_FIELD_SIZE 32
#define GNAME_FIELD_SIZE 32
#ifndef GLOBAL
# define GLOBAL extern
#endif
#define TAREXIT_SUCCESS PAXEXIT_SUCCESS
#define TAREXIT_DIFFERS PAXEXIT_DIFFERS
#define TAREXIT_FAILURE PAXEXIT_FAILURE
#include "arith.h"
#include <backupfile.h>
#include <exclude.h>
#include <full-write.h>
#include <modechange.h>
#include <quote.h>
#include <safe-read.h>
#include <stat-time.h>
#include <timespec.h>
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
#include <obstack.h>
#include <paxlib.h>
#define LG_8 3
#define LG_64 6
#define LG_256 8
GLOBAL const char *program_name;
enum subcommand
{
UNKNOWN_SUBCOMMAND,
APPEND_SUBCOMMAND,
CAT_SUBCOMMAND,
CREATE_SUBCOMMAND,
DELETE_SUBCOMMAND,
DIFF_SUBCOMMAND,
EXTRACT_SUBCOMMAND,
LIST_SUBCOMMAND,
UPDATE_SUBCOMMAND
};
GLOBAL enum subcommand subcommand_option;
GLOBAL enum archive_format archive_format;
GLOBAL char filename_terminator;
GLOBAL int blocking_factor;
GLOBAL size_t record_size;
GLOBAL bool absolute_names_option;
GLOBAL bool utc_option;
GLOBAL int after_date_option;
enum atime_preserve
{
no_atime_preserve,
replace_atime_preserve,
system_atime_preserve
};
GLOBAL enum atime_preserve atime_preserve_option;
GLOBAL bool backup_option;
GLOBAL enum backup_type backup_type;
GLOBAL bool block_number_option;
GLOBAL unsigned checkpoint_option;
enum checkpoint_style
{
checkpoint_text,
checkpoint_dot
};
GLOBAL enum checkpoint_style checkpoint_style;
GLOBAL const char *use_compress_program_option;
GLOBAL bool dereference_option;
GLOBAL int check_links_option;
GLOBAL struct exclude *excluded;
enum exclusion_tag_type
{
exclusion_tag_none,
exclusion_tag_contents,
exclusion_tag_under,
exclusion_tag_all,
};
GLOBAL gid_t group_option;
GLOBAL bool ignore_failed_read_option;
GLOBAL bool ignore_zeros_option;
GLOBAL bool incremental_option;
GLOBAL const char *info_script_option;
GLOBAL bool interactive_option;
GLOBAL uintmax_t occurrence_option;
enum old_files
{
DEFAULT_OLD_FILES,
NO_OVERWRITE_DIR_OLD_FILES,
OVERWRITE_OLD_FILES,
UNLINK_FIRST_OLD_FILES,
KEEP_OLD_FILES,
KEEP_NEWER_FILES
};
GLOBAL enum old_files old_files_option;
GLOBAL const char *listed_incremental_option;
GLOBAL struct mode_change *mode_option;
GLOBAL mode_t initial_umask;
GLOBAL bool multi_volume_option;
GLOBAL struct timespec newer_mtime_option;
GLOBAL bool set_mtime_option;
GLOBAL struct timespec mtime_option;
#define NEWER_OPTION_INITIALIZED(opt) (0 <= (opt).tv_nsec)
#define OLDER_STAT_TIME(st, m) \
(timespec_cmp (get_stat_##m##time (&(st)), newer_mtime_option) < 0)
#define OLDER_TAR_STAT_TIME(st, m) \
(timespec_cmp ((st).m##time, newer_mtime_option) < 0)
GLOBAL int recursion_option;
GLOBAL bool numeric_owner_option;
GLOBAL bool one_file_system_option;
GLOBAL uid_t owner_option;
GLOBAL bool recursive_unlink_option;
GLOBAL bool read_full_records_option;
GLOBAL bool remove_files_option;
GLOBAL const char *rmt_command_option;
GLOBAL const char *rsh_command_option;
GLOBAL bool same_order_option;
GLOBAL int same_owner_option;
GLOBAL int same_permissions_option;
GLOBAL size_t strip_name_components;
GLOBAL bool show_omitted_dirs_option;
GLOBAL bool sparse_option;
GLOBAL unsigned tar_sparse_major;
GLOBAL unsigned tar_sparse_minor;
GLOBAL bool starting_file_option;
GLOBAL tarlong tape_length_option;
GLOBAL bool to_stdout_option;
GLOBAL bool totals_option;
GLOBAL bool touch_option;
GLOBAL char *to_command_option;
GLOBAL bool ignore_command_error_option;
GLOBAL bool restrict_option;
#define EXTRACT_OVER_PIPE (to_stdout_option || to_command_option)
GLOBAL int verbose_option;
GLOBAL bool verify_option;
GLOBAL const char *volno_file_option;
GLOBAL const char *volume_label_option;
GLOBAL int archive;
#if HAVE_QUARANTINE
GLOBAL qtn_file_t archive_qtn_file;
#endif
GLOBAL bool dev_null_output;
GLOBAL struct timespec start_time;
GLOBAL struct timespec volume_start_time;
GLOBAL struct timespec last_stat_time;
GLOBAL struct tar_stat_info current_stat_info;
GLOBAL const char **archive_name_array;
GLOBAL size_t archive_names;
GLOBAL size_t allocated_archive_names;
GLOBAL const char **archive_name_cursor;
GLOBAL char const *index_file_name;
struct name
{
struct name *next;
int change_dir;
uintmax_t found_count;
int matching_flags;
char const *dir_contents;
size_t length;
char name[1];
};
GLOBAL dev_t ar_dev;
GLOBAL ino_t ar_ino;
GLOBAL bool seekable_archive;
GLOBAL dev_t root_device;
GLOBAL bool unquote_option;
GLOBAL bool test_label_option;
GLOBAL bool show_transformed_names_option;
GLOBAL bool delay_directory_restore_option;
GLOBAL bool warn_regex_usage;
enum access_mode
{
ACCESS_READ,
ACCESS_WRITE,
ACCESS_UPDATE
};
extern enum access_mode access_mode;
extern FILE *stdlis;
extern bool write_archive_to_stdout;
extern char *volume_label;
extern char *continued_file_name;
extern uintmax_t continued_file_size;
extern uintmax_t continued_file_offset;
size_t available_space_after (union block *pointer);
off_t current_block_ordinal (void);
void close_archive (void);
void closeout_volume_number (void);
void compute_duration (void);
union block *find_next_block (void);
void flush_read (void);
void flush_write (void);
void flush_archive (void);
void init_volume_number (void);
void open_archive (enum access_mode mode);
void print_total_stats (void);
void reset_eof (void);
void set_next_block_after (union block *block);
void clear_read_error_count (void);
void xclose (int fd);
void archive_write_error (ssize_t status) __attribute__ ((noreturn));
void archive_read_error (void);
off_t seek_archive (off_t size);
void set_start_time (void);
void mv_begin (struct tar_stat_info *st);
void mv_end (void);
void mv_total_size (off_t size);
void mv_size_left (off_t size);
void buffer_write_global_xheader (void);
enum dump_status
{
dump_status_ok,
dump_status_short,
dump_status_fail,
dump_status_not_implemented
};
void add_exclusion_tag (const char *name, enum exclusion_tag_type type,
bool (*)(const char*));
bool cachedir_file_p (const char *name);
bool file_dumpable_p (struct tar_stat_info *st);
void create_archive (void);
void pad_archive (off_t size_left);
void dump_file (const char *st, int top_level, dev_t parent_device);
union block *start_header (struct tar_stat_info *st);
void finish_header (struct tar_stat_info *st, union block *header,
off_t block_ordinal);
void simple_finish_header (union block *header);
union block * write_extended (bool global, struct tar_stat_info *st,
union block *old_header);
union block *start_private_header (const char *name, size_t size);
void write_eot (void);
void check_links (void);
#define GID_TO_CHARS(val, where) gid_to_chars (val, where, sizeof (where))
#define MAJOR_TO_CHARS(val, where) major_to_chars (val, where, sizeof (where))
#define MINOR_TO_CHARS(val, where) minor_to_chars (val, where, sizeof (where))
#define MODE_TO_CHARS(val, where) mode_to_chars (val, where, sizeof (where))
#define OFF_TO_CHARS(val, where) off_to_chars (val, where, sizeof (where))
#define SIZE_TO_CHARS(val, where) size_to_chars (val, where, sizeof (where))
#define TIME_TO_CHARS(val, where) time_to_chars (val, where, sizeof (where))
#define UID_TO_CHARS(val, where) uid_to_chars (val, where, sizeof (where))
#define UINTMAX_TO_CHARS(val, where) uintmax_to_chars (val, where, sizeof (where))
#define UNAME_TO_CHARS(name,buf) string_to_chars (name, buf, sizeof(buf))
#define GNAME_TO_CHARS(name,buf) string_to_chars (name, buf, sizeof(buf))
bool gid_to_chars (gid_t gid, char *buf, size_t size);
bool major_to_chars (major_t m, char *buf, size_t size);
bool minor_to_chars (minor_t m, char *buf, size_t size);
bool mode_to_chars (mode_t m, char *buf, size_t size);
bool off_to_chars (off_t off, char *buf, size_t size);
bool size_to_chars (size_t v, char *buf, size_t size);
bool time_to_chars (time_t t, char *buf, size_t size);
bool uid_to_chars (uid_t uid, char *buf, size_t size);
bool uintmax_to_chars (uintmax_t v, char *buf, size_t size);
void string_to_chars (char const *s, char *buf, size_t size);
extern bool now_verifying;
void diff_archive (void);
void diff_init (void);
void verify_volume (void);
void extr_init (void);
void extract_archive (void);
void extract_finish (void);
bool rename_directory (char *src, char *dst);
void delete_archive_members (void);
char *get_directory_contents (char *dir_name, dev_t device);
const char *append_incremental_renames (const char *dump);
void read_directory_file (void);
void write_directory_file (void);
void purge_directory (char const *directory_name);
void list_dumpdir (char *buffer, size_t size);
void update_parent_directory (const char *name);
size_t dumpdir_size (const char *p);
bool is_dumpdir (struct tar_stat_info *stat_info);
enum read_header
{
HEADER_STILL_UNREAD,
HEADER_SUCCESS,
HEADER_SUCCESS_EXTENDED,
HEADER_ZERO_BLOCK,
HEADER_END_OF_FILE,
HEADER_FAILURE
};
extern union block *current_header;
extern enum archive_format current_format;
extern size_t recent_long_name_blocks;
extern size_t recent_long_link_blocks;
void decode_header (union block *header, struct tar_stat_info *stat_info,
enum archive_format *format_pointer, int do_user_group);
char const *tartime (struct timespec t, bool full_time);
#define GID_FROM_HEADER(where) gid_from_header (where, sizeof (where))
#define MAJOR_FROM_HEADER(where) major_from_header (where, sizeof (where))
#define MINOR_FROM_HEADER(where) minor_from_header (where, sizeof (where))
#define MODE_FROM_HEADER(where) mode_from_header (where, sizeof (where))
#define OFF_FROM_HEADER(where) off_from_header (where, sizeof (where))
#define SIZE_FROM_HEADER(where) size_from_header (where, sizeof (where))
#define TIME_FROM_HEADER(where) time_from_header (where, sizeof (where))
#define UID_FROM_HEADER(where) uid_from_header (where, sizeof (where))
#define UINTMAX_FROM_HEADER(where) uintmax_from_header (where, sizeof (where))
gid_t gid_from_header (const char *buf, size_t size);
major_t major_from_header (const char *buf, size_t size);
minor_t minor_from_header (const char *buf, size_t size);
mode_t mode_from_header (const char *buf, size_t size);
off_t off_from_header (const char *buf, size_t size);
size_t size_from_header (const char *buf, size_t size);
time_t time_from_header (const char *buf, size_t size);
uid_t uid_from_header (const char *buf, size_t size);
uintmax_t uintmax_from_header (const char * buf, size_t size);
void list_archive (void);
void print_for_mkdir (char *dirname, int length, mode_t mode);
void print_header (struct tar_stat_info *st, off_t block_ordinal);
void read_and (void (*do_something) (void));
enum read_header read_header_primitive (bool raw_extended_headers,
struct tar_stat_info *info);
enum read_header read_header (bool raw_extended_headers);
enum read_header tar_checksum (union block *header, bool silent);
void skip_file (off_t size);
void skip_member (void);
void assign_string (char **dest, const char *src);
char *quote_copy_string (const char *str);
int unquote_string (char *str);
void code_ns_fraction (int ns, char *p);
char const *code_timespec (struct timespec ts, char *sbuf);
enum { BILLION = 1000000000, LOG10_BILLION = 9 };
enum { TIMESPEC_STRSIZE_BOUND =
UINTMAX_STRSIZE_BOUND + LOG10_BILLION + sizeof "-." - 1 };
enum remove_option
{
ORDINARY_REMOVE_OPTION,
RECURSIVE_REMOVE_OPTION,
WANT_DIRECTORY_REMOVE_OPTION
};
int remove_any_file (const char *file_name, enum remove_option option);
bool maybe_backup_file (const char *file_name, bool this_is_the_archive);
void undo_last_backup (void);
int deref_stat (bool deref, char const *name, struct stat *buf);
int chdir_arg (char const *dir);
void chdir_do (int dir);
void close_diag (char const *name);
void open_diag (char const *name);
void read_diag_details (char const *name, off_t offset, size_t size);
void readlink_diag (char const *name);
void savedir_diag (char const *name);
void seek_diag_details (char const *name, off_t offset);
void stat_diag (char const *name);
void write_error_details (char const *name, size_t status, size_t size);
void write_fatal (char const *name) __attribute__ ((noreturn));
void write_fatal_details (char const *name, ssize_t status, size_t size)
__attribute__ ((noreturn));
pid_t xfork (void);
void xpipe (int fd[2]);
void *page_aligned_alloc (void **ptr, size_t size);
int set_file_atime (int fd, char const *file,
struct timespec const timespec[2]);
extern struct name *gnu_list_name;
void gid_to_gname (gid_t gid, char **gname);
int gname_to_gid (char const *gname, gid_t *pgid);
void uid_to_uname (uid_t uid, char **uname);
int uname_to_uid (char const *uname, uid_t *puid);
void name_init (void);
void name_add_name (const char *name, int matching_flags);
void name_add_dir (const char *name);
void name_term (void);
const char *name_next (int change_dirs);
void name_gather (void);
struct name *addname (char const *string, int change_dir);
bool name_match (const char *name);
void names_notfound (void);
void collect_and_sort_names (void);
struct name *name_scan (const char *name);
char *name_from_list (void);
void blank_name_list (void);
char *new_name (const char *dir_name, const char *name);
size_t stripped_prefix_len (char const *file_name, size_t num);
bool all_names_found (struct tar_stat_info *st);
bool excluded_name (char const *name);
void add_avoided_name (char const *name);
bool is_avoided_name (char const *name);
bool is_individual_file (char const *name);
bool contains_dot_dot (char const *name);
#define ISFOUND(c) ((occurrence_option == 0) ? (c)->found_count : \
(c)->found_count == occurrence_option)
#define WASFOUND(c) ((occurrence_option == 0) ? (c)->found_count : \
(c)->found_count >= occurrence_option)
void usage (int);
int confirm (const char *message_action, const char *name);
void request_stdin (const char *option);
void tar_stat_init (struct tar_stat_info *st);
void tar_stat_destroy (struct tar_stat_info *st);
void usage (int) __attribute__ ((noreturn));
int tar_timespec_cmp (struct timespec a, struct timespec b);
const char *archive_format_string (enum archive_format fmt);
const char *subcommand_string (enum subcommand c);
extern char *output_start;
void update_archive (void);
void xheader_init (struct xheader *xhdr);
void xheader_decode (struct tar_stat_info *stat);
void xheader_decode_global (struct xheader *xhdr);
void xheader_store (char const *keyword, struct tar_stat_info *st,
void const *data);
void xheader_read (struct xheader *xhdr, union block *header, size_t size);
void xheader_write (char type, char *name, struct xheader *xhdr);
void xheader_write_global (struct xheader *xhdr);
void xheader_finish (struct xheader *hdr);
void xheader_destroy (struct xheader *hdr);
char *xheader_xhdr_name (struct tar_stat_info *st);
char *xheader_ghdr_name (void);
void xheader_set_option (char *string);
void xheader_string_begin (struct xheader *xhdr);
void xheader_string_add (struct xheader *xhdr, char const *s);
bool xheader_string_end (struct xheader *xhdr, char const *keyword);
bool xheader_keyword_deleted_p (const char *kw);
char *xheader_format_name (struct tar_stat_info *st, const char *fmt,
size_t n);
void sys_detect_dev_null_output (void);
void sys_save_archive_dev_ino (void);
void sys_drain_input_pipe (void);
void sys_wait_for_child (pid_t);
void sys_spawn_shell (void);
bool sys_compare_uid (struct stat *a, struct stat *b);
bool sys_compare_gid (struct stat *a, struct stat *b);
bool sys_file_is_archive (struct tar_stat_info *p);
bool sys_compare_links (struct stat *link_data, struct stat *stat_data);
int sys_truncate (int fd);
pid_t sys_child_open_for_compress (void);
pid_t sys_child_open_for_uncompress (void);
size_t sys_write_archive_buffer (void);
bool sys_get_archive_stat (void);
int sys_exec_command (char *file_name, int typechar, struct tar_stat_info *st);
void sys_wait_command (void);
int sys_exec_info_script (const char **archive_name, int volume_number);
void report_difference (struct tar_stat_info *st, const char *message, ...);
bool sparse_member_p (struct tar_stat_info *st);
bool sparse_fixup_header (struct tar_stat_info *st);
enum dump_status sparse_dump_file (int, struct tar_stat_info *st);
enum dump_status sparse_extract_file (int fd, struct tar_stat_info *st,
off_t *size);
enum dump_status sparse_skip_file (struct tar_stat_info *st);
bool sparse_diff_file (int, struct tar_stat_info *st);
bool string_ascii_p (const char *str);
bool utf8_convert (bool to_utf, char const *input, char **output);
typedef enum
{
xform_regfile,
xform_link,
xform_symlink
} xform_type;
void set_transform_expr (const char *expr);
bool transform_name (char **pinput);
bool transform_member_name (char **pinput, xform_type type);
bool transform_name_fp (char **pinput, char *(*fun)(char *, void *), void *);