X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Fcommon.h;h=549ef6141ea3cda7e3d336d6da94601a8c0a3d88;hb=322114744f56ed23688077e33dc459efcf529f41;hp=b8671b9097388631e2ebf2ac9151721af3567fa3;hpb=236deef28ef1d0438aee02729e0a377636962b1a;p=chaz%2Ftar diff --git a/src/common.h b/src/common.h index b8671b9..549ef61 100644 --- a/src/common.h +++ b/src/common.h @@ -1,7 +1,7 @@ /* Common declarations for the tar program. Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001, - 2003 Free Software Foundation, Inc. + 2003, 2004 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the @@ -38,11 +38,6 @@ /* Some various global definitions. */ /* Name of file to use for interacting with user. */ -#if MSDOS -# define TTY_NAME "con" -#else -# define TTY_NAME "/dev/tty" -#endif /* GLOBAL is defined to empty in tar.c only, and left alone in other *.c modules. Here, we merely set it to "extern" if it is not already set. @@ -85,6 +80,7 @@ GLOBAL int exit_status; #include #include #include +#include /* Log base 2 of common values. */ #define LG_8 3 @@ -159,11 +155,12 @@ GLOBAL int check_links_option; /* Patterns that match file names to be excluded. */ GLOBAL struct exclude *excluded; +/* Exclude directories containing a cache directory tag. */ +GLOBAL bool exclude_caches_option; + /* Specified file containing names to work on. */ GLOBAL const char *files_from_option; -GLOBAL bool force_local_option; - /* Specified value to be put into tar file in place of stat () results, or just -1 if such an override should not take place. */ GLOBAL gid_t group_option; @@ -189,7 +186,7 @@ enum old_files OVERWRITE_OLD_FILES, /* --overwrite */ UNLINK_FIRST_OLD_FILES, /* --unlink-first */ KEEP_OLD_FILES, /* --keep-old-files */ - KEEP_NEWER_FILES, /* --keep-newer-files */ + KEEP_NEWER_FILES /* --keep-newer-files */ }; GLOBAL enum old_files old_files_option; @@ -201,13 +198,23 @@ GLOBAL struct mode_change *mode_option; GLOBAL bool multi_volume_option; -/* The same variable hold the time, whether mtime or ctime. Just fake a +/* The same variable holds the time, whether mtime or ctime. Just fake a non-existing option, for making the code clearer, elsewhere. */ #define newer_ctime_option newer_mtime_option /* Specified threshold date and time. Files having an older time stamp do not get archived (also see after_date_option above). */ -GLOBAL time_t newer_mtime_option; +GLOBAL struct timespec newer_mtime_option; + +/* Return true if newer_mtime_option is initialized. */ +#define NEWER_OPTION_INITIALIZED(opt) (0 <= (opt).tv_nsec) + +/* Return true if the struct stat ST's M time is less than + newer_mtime_option. */ +#define OLDER_STAT_TIME(st, m) \ + ((st).st_##m##time < newer_mtime_option.tv_sec \ + || ((st).st_##m##time == newer_mtime_option.tv_sec \ + && TIMESPEC_NS ((st).st_##m##tim) < newer_mtime_option.tv_nsec)) /* Zero if there is no recursion, otherwise FNM_LEADING_DIR. */ GLOBAL int recursion_option; @@ -226,6 +233,9 @@ GLOBAL bool read_full_records_option; GLOBAL bool remove_files_option; +/* Specified rmt command. */ +GLOBAL const char *rmt_command_option; + /* Specified remote shell command. */ GLOBAL const char *rsh_command_option; @@ -237,9 +247,9 @@ GLOBAL int same_owner_option; /* If positive, preserve permissions when extracting. */ GLOBAL int same_permissions_option; -/* When set, strip the given number of path elements from the file name +/* When set, strip the given number of file name components from the file name before extracting */ -GLOBAL size_t strip_path_elements; +GLOBAL size_t strip_name_components; GLOBAL bool show_omitted_dirs_option; @@ -317,6 +327,10 @@ struct name GLOBAL dev_t ar_dev; GLOBAL ino_t ar_ino; +GLOBAL bool seekable_archive; + +GLOBAL dev_t root_device; + /* Declarations for each module. */ @@ -356,6 +370,8 @@ void clear_read_error_count (void); void xclose (int fd); void archive_write_error (ssize_t) __attribute__ ((noreturn)); void archive_read_error (void); +off_t seek_archive (off_t size); +void set_start_time (void); /* Module create.c. */ @@ -367,7 +383,7 @@ enum dump_status dump_status_not_implemented }; -bool file_dumpable_p (struct tar_stat_info *stat); +bool file_dumpable_p (struct tar_stat_info *); void create_archive (void); void pad_archive (off_t size_left); void dump_file (char *, int, dev_t); @@ -426,7 +442,7 @@ void delete_archive_members (void); char *get_directory_contents (char *, dev_t); void read_directory_file (void); void write_directory_file (void); -void gnu_restore (char const *); +void purge_directory (char const *); /* Module list.c. */ @@ -485,6 +501,7 @@ void print_for_mkdir (char *, int, mode_t); void print_header (struct tar_stat_info *, off_t); void read_and (void (*) (void)); enum read_header read_header (bool); +enum read_header tar_checksum (union block *header); void skip_file (off_t); void skip_member (void); @@ -504,7 +521,15 @@ enum remove_option { ORDINARY_REMOVE_OPTION, RECURSIVE_REMOVE_OPTION, - WANT_DIRECTORY_REMOVE_OPTION + + /* FIXME: The following value is never used. It seems to be intended + as a placeholder for a hypothetical option that should instruct tar + to recursively remove subdirectories in purge_directory(), + as opposed to the functionality of --recursive-unlink + (RECURSIVE_REMOVE_OPTION value), which removes them in + prepare_to_extract() phase. However, with the addition of more + meta-info to the incremental dumps, this should become unnecessary */ + WANT_DIRECTORY_REMOVE_OPTION }; int remove_any_file (const char *, enum remove_option); bool maybe_backup_file (const char *, int); @@ -535,7 +560,7 @@ void open_diag (char const *name); void read_error (char const *); void read_error_details (char const *, off_t, size_t); void read_fatal (char const *) __attribute__ ((noreturn)); -void read_fatal_details (char const *, off_t, size_t); +void read_fatal_details (char const *, off_t, size_t) __attribute__ ((noreturn)); void read_warn_details (char const *, off_t, size_t); void read_diag_details (char const *name, off_t offset, size_t size); void readlink_error (char const *); @@ -559,7 +584,7 @@ void unlink_error (char const *); void utime_error (char const *); void waitpid_error (char const *); void write_error (char const *); -void write_error_details (char const *, ssize_t, size_t); +void write_error_details (char const *, size_t, size_t); void write_fatal (char const *) __attribute__ ((noreturn)); void write_fatal_details (char const *, ssize_t, size_t) __attribute__ ((noreturn)); @@ -567,18 +592,20 @@ void write_fatal_details (char const *, ssize_t, size_t) pid_t xfork (void); void xpipe (int[2]); +void *page_aligned_alloc (void **, size_t); + /* Module names.c. */ extern struct name *gnu_list_name; void gid_to_gname (gid_t, char **gname); -int gname_to_gid (char *gname, gid_t *); +int gname_to_gid (char const *, gid_t *); void uid_to_uname (uid_t, char **uname); -int uname_to_uid (char *uname, uid_t *); +int uname_to_uid (char const *, uid_t *); void init_names (void); void name_add (const char *); -void name_init (int, char *const *); +void name_init (void); void name_term (void); char *name_next (int); void name_close (void); @@ -599,9 +626,12 @@ bool excluded_name (char const *); void add_avoided_name (char const *); bool is_avoided_name (char const *); +bool is_individual_file (char const *); bool contains_dot_dot (char const *); +bool removed_prefixes_p (void); + #define ISFOUND(c) ((occurrence_option == 0) ? (c)->found_count : \ (c)->found_count == occurrence_option) #define WASFOUND(c) ((occurrence_option == 0) ? (c)->found_count : \ @@ -609,11 +639,14 @@ bool contains_dot_dot (char const *); /* Module tar.c. */ +void usage (int); + int confirm (const char *, const char *); void request_stdin (const char *); void tar_stat_init (struct tar_stat_info *st); void tar_stat_destroy (struct tar_stat_info *st); +void usage (int) __attribute__ ((noreturn)); /* Module update.c. */ @@ -624,16 +657,22 @@ void update_archive (void); /* Module xheader.c. */ void xheader_decode (struct tar_stat_info *); +void xheader_decode_global (void); void xheader_store (char const *, struct tar_stat_info const *, void *); void xheader_read (union block *, size_t); +void xheader_write (char type, char *name, struct xheader *xhdr); +void xheader_write_global (void); void xheader_finish (struct xheader *); void xheader_destroy (struct xheader *); char *xheader_xhdr_name (struct tar_stat_info *st); char *xheader_ghdr_name (void); +void xheader_write (char, char *, struct xheader *); +void xheader_write_global (void); +void xheader_set_option (char *string); /* Module system.c */ -void sys_stat_nanoseconds (struct tar_stat_info *stat); +void sys_stat_nanoseconds (struct tar_stat_info *); void sys_detect_dev_null_output (void); void sys_save_archive_dev_ino (void); void sys_drain_input_pipe (void); @@ -644,17 +683,23 @@ 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); -void sys_reset_uid_gid (void); pid_t sys_child_open_for_compress (void); pid_t sys_child_open_for_uncompress (void); -ssize_t sys_write_archive_buffer (void); +size_t sys_write_archive_buffer (void); bool sys_get_archive_stat (void); /* Module compare.c */ void report_difference (struct tar_stat_info *st, const char *message, ...); /* Module sparse.c */ -bool sparse_file_p (struct tar_stat_info *stat); -enum dump_status sparse_dump_file (int fd, struct tar_stat_info *stat); -enum dump_status sparse_extract_file (int fd, struct tar_stat_info *stat, off_t *size); -bool sparse_diff_file (int fd, struct tar_stat_info *stat); +bool sparse_file_p (struct tar_stat_info *); +bool sparse_member_p (struct tar_stat_info *); +bool sparse_fixup_header (struct tar_stat_info *); +enum dump_status sparse_dump_file (int, struct tar_stat_info *); +enum dump_status sparse_extract_file (int, struct tar_stat_info *, off_t *); +enum dump_status sparse_skip_file (struct tar_stat_info *); +bool sparse_diff_file (int, struct tar_stat_info *); + +/* Module utf8.c */ +bool string_ascii_p (const char *str); +bool utf8_convert (bool to_utf, char const *input, char **output);