X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Ftar.c;h=8396ad5e4e4e753f2c6284643b1939b7a52e3887;hb=7b68ef3d918603f3afb03e939ba72f5cad10edf4;hp=455ebacb44507ef5b5e2dd199efd900bc728246a;hpb=48c24ac71192f1d0f7933802357ad38ecc064301;p=chaz%2Ftar diff --git a/src/tar.c b/src/tar.c index 455ebac..8396ad5 100644 --- a/src/tar.c +++ b/src/tar.c @@ -1,13 +1,13 @@ /* A tar (tape archiver) program. Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, - 2001, 2003, 2004 Free Software Foundation, Inc. + 2001, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. Written by John Gilmore, starting 1985-08-25. 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 - Free Software Foundation; either version 2, or (at your option) any later + Free Software Foundation; either version 3, or (at your option) any later version. This program is distributed in the hope that it will be useful, but @@ -17,12 +17,14 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ -#include "system.h" +#include #include -#include +#include +#include +#include #include #if ! defined SIGCHLD && defined SIGCLD @@ -36,11 +38,18 @@ #define GLOBAL #include "common.h" +#include +#include +#include +#include #include -#include +#include +#include #include #include +#include #include +#include /* Local declarations. */ @@ -73,12 +82,15 @@ request_stdin (const char *option) stdin_used_by = option; } -/* Returns true if and only if the user typed 'y' or 'Y'. */ +extern int rpmatch (char const *response); + +/* Returns true if and only if the user typed an affirmative response. */ int confirm (const char *message_action, const char *message_name) { static FILE *confirm_file; static int confirm_file_EOF; + bool status = false; if (!confirm_file) { @@ -98,22 +110,24 @@ confirm (const char *message_action, const char *message_name) fprintf (stdlis, "%s %s?", message_action, quote (message_name)); fflush (stdlis); - { - int reply = confirm_file_EOF ? EOF : getc (confirm_file); - int character; + if (!confirm_file_EOF) + { + char *response = NULL; + size_t response_size = 0; + if (getline (&response, &response_size, confirm_file) < 0) + confirm_file_EOF = 1; + else + status = rpmatch (response) > 0; + free (response); + } - for (character = reply; - character != '\n'; - character = getc (confirm_file)) - if (character == EOF) - { - confirm_file_EOF = 1; - fputc ('\n', stdlis); - fflush (stdlis); - break; - } - return reply == 'y' || reply == 'Y'; - } + if (confirm_file_EOF) + { + fputc ('\n', stdlis); + fflush (stdlis); + } + + return status; } static struct fmttab { @@ -128,7 +142,8 @@ static struct fmttab { { "star", STAR_FORMAT }, #endif { "gnu", GNU_FORMAT }, - { NULL, 0 } + { "pax", POSIX_FORMAT }, /* An alias for posix */ + { NULL, 0 } }; static void @@ -144,7 +159,7 @@ set_archive_format (char const *name) archive_format = p->fmt; } -static const char * +const char * archive_format_string (enum archive_format fmt) { struct fmttab const *p; @@ -160,404 +175,738 @@ archive_format_string (enum archive_format fmt) static void assert_format(unsigned fmt_mask) { - if ((FORMAT_MASK(archive_format) & fmt_mask) == 0) + if ((FORMAT_MASK (archive_format) & fmt_mask) == 0) USAGE_ERROR ((0, 0, _("GNU features wanted on incompatible archive format"))); } +const char * +subcommand_string (enum subcommand c) +{ + switch (c) + { + case UNKNOWN_SUBCOMMAND: + return "unknown?"; + + case APPEND_SUBCOMMAND: + return "-r"; + + case CAT_SUBCOMMAND: + return "-A"; + + case CREATE_SUBCOMMAND: + return "-c"; + + case DELETE_SUBCOMMAND: + return "-D"; + + case DIFF_SUBCOMMAND: + return "-d"; + + case EXTRACT_SUBCOMMAND: + return "-x"; + + case LIST_SUBCOMMAND: + return "-t"; + + case UPDATE_SUBCOMMAND: + return "-u"; + + default: + abort (); + } +} + +void +tar_list_quoting_styles (argp_fmtstream_t fs, char *prefix) +{ + int i; + + for (i = 0; quoting_style_args[i]; i++) + argp_fmtstream_printf (fs, "%s%s\n", prefix, quoting_style_args[i]); +} + +void +tar_set_quoting_style (char *arg) +{ + int i; + + for (i = 0; quoting_style_args[i]; i++) + if (strcmp (arg, quoting_style_args[i]) == 0) + { + set_quoting_style (NULL, i); + return; + } + FATAL_ERROR ((0, 0, + _("Unknown quoting style `%s'. Try `%s --quoting-style=help' to get a list."), arg, program_invocation_short_name)); +} /* Options. */ -/* For long options that unconditionally set a single flag, we have getopt - do it. For the others, we share the code for the equivalent short - named option, the name of which is stored in the otherwise-unused `val' - field of the `struct option'; for long options that have no equivalent - short option, we use non-characters as pseudo short options, - starting at CHAR_MAX + 1 and going upwards. */ - enum { ANCHORED_OPTION = CHAR_MAX + 1, ATIME_PRESERVE_OPTION, BACKUP_OPTION, + CHECK_DEVICE_OPTION, CHECKPOINT_OPTION, + CHECKPOINT_ACTION_OPTION, + DELAY_DIRECTORY_RESTORE_OPTION, + HARD_DEREFERENCE_OPTION, DELETE_OPTION, + EXCLUDE_CACHES_OPTION, + EXCLUDE_CACHES_UNDER_OPTION, + EXCLUDE_CACHES_ALL_OPTION, EXCLUDE_OPTION, + EXCLUDE_TAG_OPTION, + EXCLUDE_TAG_UNDER_OPTION, + EXCLUDE_TAG_ALL_OPTION, + EXCLUDE_VCS_OPTION, FORCE_LOCAL_OPTION, - FORMAT_OPTION, GROUP_OPTION, + HANG_OPTION, IGNORE_CASE_OPTION, + IGNORE_COMMAND_ERROR_OPTION, IGNORE_FAILED_READ_OPTION, INDEX_FILE_OPTION, KEEP_NEWER_FILES_OPTION, + LZOP_OPTION, MODE_OPTION, + MTIME_OPTION, NEWER_MTIME_OPTION, NO_ANCHORED_OPTION, + NO_AUTO_COMPRESS_OPTION, + NO_CHECK_DEVICE_OPTION, + NO_DELAY_DIRECTORY_RESTORE_OPTION, NO_IGNORE_CASE_OPTION, + NO_IGNORE_COMMAND_ERROR_OPTION, + NO_NULL_OPTION, NO_OVERWRITE_DIR_OPTION, - NO_WILDCARDS_OPTION, + NO_QUOTE_CHARS_OPTION, + NO_RECURSION_OPTION, + NO_SAME_OWNER_OPTION, + NO_SAME_PERMISSIONS_OPTION, + NO_UNQUOTE_OPTION, NO_WILDCARDS_MATCH_SLASH_OPTION, + NO_WILDCARDS_OPTION, NULL_OPTION, NUMERIC_OWNER_OPTION, OCCURRENCE_OPTION, + OLD_ARCHIVE_OPTION, + ONE_FILE_SYSTEM_OPTION, + OVERWRITE_DIR_OPTION, OVERWRITE_OPTION, OWNER_OPTION, PAX_OPTION, POSIX_OPTION, PRESERVE_OPTION, + QUOTE_CHARS_OPTION, + QUOTING_STYLE_OPTION, RECORD_SIZE_OPTION, + RECURSION_OPTION, RECURSIVE_UNLINK_OPTION, REMOVE_FILES_OPTION, + RESTRICT_OPTION, RMT_COMMAND_OPTION, RSH_COMMAND_OPTION, + SAME_OWNER_OPTION, SHOW_DEFAULTS_OPTION, SHOW_OMITTED_DIRS_OPTION, - STRIP_PATH_OPTION, + SHOW_TRANSFORMED_NAMES_OPTION, + SPARSE_VERSION_OPTION, + STRIP_COMPONENTS_OPTION, SUFFIX_OPTION, + TEST_LABEL_OPTION, TOTALS_OPTION, - USE_COMPRESS_PROGRAM_OPTION, + TO_COMMAND_OPTION, + TRANSFORM_OPTION, + UNQUOTE_OPTION, + USAGE_OPTION, UTC_OPTION, + VERSION_OPTION, VOLNO_FILE_OPTION, - WILDCARDS_OPTION, - WILDCARDS_MATCH_SLASH_OPTION -}; - -/* If nonzero, display usage information and exit. */ -static int show_help; - -/* If nonzero, print the version on standard output and exit. */ -static int show_version; - -static struct option long_options[] = -{ - {"absolute-names", no_argument, 0, 'P'}, - {"after-date", required_argument, 0, 'N'}, - {"anchored", no_argument, 0, ANCHORED_OPTION}, - {"append", no_argument, 0, 'r'}, - {"atime-preserve", no_argument, 0, ATIME_PRESERVE_OPTION}, - {"backup", optional_argument, 0, BACKUP_OPTION}, - {"block-number", no_argument, 0, 'R'}, - {"blocking-factor", required_argument, 0, 'b'}, - {"bzip2", no_argument, 0, 'j'}, - {"catenate", no_argument, 0, 'A'}, - {"checkpoint", no_argument, 0, CHECKPOINT_OPTION}, - {"check-links", no_argument, &check_links_option, 1}, - {"compare", no_argument, 0, 'd'}, - {"compress", no_argument, 0, 'Z'}, - {"concatenate", no_argument, 0, 'A'}, - {"confirmation", no_argument, 0, 'w'}, - /* FIXME: --selective as a synonym for --confirmation? */ - {"create", no_argument, 0, 'c'}, - {"delete", no_argument, 0, DELETE_OPTION}, - {"dereference", no_argument, 0, 'h'}, - {"diff", no_argument, 0, 'd'}, - {"directory", required_argument, 0, 'C'}, - {"exclude", required_argument, 0, EXCLUDE_OPTION}, - {"exclude-from", required_argument, 0, 'X'}, - {"extract", no_argument, 0, 'x'}, - {"file", required_argument, 0, 'f'}, - {"files-from", required_argument, 0, 'T'}, - {"force-local", no_argument, 0, FORCE_LOCAL_OPTION}, - {"format", required_argument, 0, FORMAT_OPTION}, - {"get", no_argument, 0, 'x'}, - {"group", required_argument, 0, GROUP_OPTION}, - {"gunzip", no_argument, 0, 'z'}, - {"gzip", no_argument, 0, 'z'}, - {"help", no_argument, &show_help, 1}, - {"ignore-case", no_argument, 0, IGNORE_CASE_OPTION}, - {"ignore-failed-read", no_argument, 0, IGNORE_FAILED_READ_OPTION}, - {"ignore-zeros", no_argument, 0, 'i'}, - /* FIXME: --ignore-end as a new name for --ignore-zeros? */ - {"incremental", no_argument, 0, 'G'}, - {"index-file", required_argument, 0, INDEX_FILE_OPTION}, - {"info-script", required_argument, 0, 'F'}, - {"interactive", no_argument, 0, 'w'}, - {"keep-newer-files", no_argument, 0, KEEP_NEWER_FILES_OPTION}, - {"keep-old-files", no_argument, 0, 'k'}, - {"label", required_argument, 0, 'V'}, - {"list", no_argument, 0, 't'}, - {"listed-incremental", required_argument, 0, 'g'}, - {"mode", required_argument, 0, MODE_OPTION}, - {"multi-volume", no_argument, 0, 'M'}, - {"new-volume-script", required_argument, 0, 'F'}, - {"newer", required_argument, 0, 'N'}, - {"newer-mtime", required_argument, 0, NEWER_MTIME_OPTION}, - {"null", no_argument, 0, NULL_OPTION}, - {"no-anchored", no_argument, 0, NO_ANCHORED_OPTION}, - {"no-ignore-case", no_argument, 0, NO_IGNORE_CASE_OPTION}, - {"no-overwrite-dir", no_argument, 0, NO_OVERWRITE_DIR_OPTION}, - {"no-wildcards", no_argument, 0, NO_WILDCARDS_OPTION}, - {"no-wildcards-match-slash", no_argument, 0, NO_WILDCARDS_MATCH_SLASH_OPTION}, - {"no-recursion", no_argument, &recursion_option, 0}, - {"no-same-owner", no_argument, &same_owner_option, -1}, - {"no-same-permissions", no_argument, &same_permissions_option, -1}, - {"numeric-owner", no_argument, 0, NUMERIC_OWNER_OPTION}, - {"occurrence", optional_argument, 0, OCCURRENCE_OPTION}, - {"old-archive", no_argument, 0, 'o'}, - {"one-file-system", no_argument, 0, 'l'}, - {"overwrite", no_argument, 0, OVERWRITE_OPTION}, - {"owner", required_argument, 0, OWNER_OPTION}, - {"pax-option", required_argument, 0, PAX_OPTION}, - {"portability", no_argument, 0, 'o'}, - {"posix", no_argument, 0, POSIX_OPTION}, - {"preserve", no_argument, 0, PRESERVE_OPTION}, - {"preserve-order", no_argument, 0, 's'}, - {"preserve-permissions", no_argument, 0, 'p'}, - {"recursion", no_argument, &recursion_option, FNM_LEADING_DIR}, - {"recursive-unlink", no_argument, 0, RECURSIVE_UNLINK_OPTION}, - {"read-full-records", no_argument, 0, 'B'}, - /* FIXME: --partial-blocks might be a synonym for --read-full-records? */ - {"record-size", required_argument, 0, RECORD_SIZE_OPTION}, - {"remove-files", no_argument, 0, REMOVE_FILES_OPTION}, - {"rmt-command", required_argument, 0, RMT_COMMAND_OPTION}, - {"rsh-command", required_argument, 0, RSH_COMMAND_OPTION}, - {"same-order", no_argument, 0, 's'}, - {"same-owner", no_argument, &same_owner_option, 1}, - {"same-permissions", no_argument, 0, 'p'}, - {"show-defaults", no_argument, 0, SHOW_DEFAULTS_OPTION}, - {"show-omitted-dirs", no_argument, 0, SHOW_OMITTED_DIRS_OPTION}, - {"sparse", no_argument, 0, 'S'}, - {"starting-file", required_argument, 0, 'K'}, - {"strip-path", required_argument, 0, STRIP_PATH_OPTION }, - {"suffix", required_argument, 0, SUFFIX_OPTION}, - {"tape-length", required_argument, 0, 'L'}, - {"to-stdout", no_argument, 0, 'O'}, - {"totals", no_argument, 0, TOTALS_OPTION}, - {"touch", no_argument, 0, 'm'}, - {"uncompress", no_argument, 0, 'Z'}, - {"ungzip", no_argument, 0, 'z'}, - {"unlink-first", no_argument, 0, 'U'}, - {"update", no_argument, 0, 'u'}, - {"utc", no_argument, 0, UTC_OPTION }, - {"use-compress-program", required_argument, 0, USE_COMPRESS_PROGRAM_OPTION}, - {"verbose", no_argument, 0, 'v'}, - {"verify", no_argument, 0, 'W'}, - {"version", no_argument, &show_version, 1}, - {"volno-file", required_argument, 0, VOLNO_FILE_OPTION}, - {"wildcards", no_argument, 0, WILDCARDS_OPTION}, - {"wildcards-match-slash", no_argument, 0, WILDCARDS_MATCH_SLASH_OPTION}, - - {0, 0, 0, 0} + WILDCARDS_MATCH_SLASH_OPTION, + WILDCARDS_OPTION }; -/* Print a usage message and exit with STATUS. */ -void -usage (int status) -{ - if (status != TAREXIT_SUCCESS) - fprintf (stderr, _("Try `%s --help' for more information.\n"), - program_name); - else - { - fputs (_("\ -GNU `tar' saves many files together into a single tape or disk archive, and\n\ -can restore individual files from the archive.\n"), - stdout); - printf (_("\nUsage: %s [OPTION]... [FILE]...\n\ +const char *argp_program_version = "tar (" PACKAGE_NAME ") " VERSION; +const char *argp_program_bug_address = "<" PACKAGE_BUGREPORT ">"; +static char const doc[] = N_("\ +GNU `tar' saves many files together into a single tape or disk archive, \ +and can restore individual files from the archive.\n\ \n\ Examples:\n\ - %s -cf archive.tar foo bar # Create archive.tar from files foo and bar.\n\ - %s -tvf archive.tar # List all files in archive.tar verbosely.\n\ - %s -xf archive.tar # Extract all files from archive.tar.\n"), - program_name, program_name, program_name, program_name); - fputs (_("\ -\n\ -If a long option shows an argument as mandatory, then it is mandatory\n\ -for the equivalent short option also. Similarly for optional arguments.\n"), - stdout); - fputs(_("\ -\n\ -Main operation mode:\n\ - -t, --list list the contents of an archive\n\ - -x, --extract, --get extract files from an archive\n\ - -c, --create create a new archive\n\ - -d, --diff, --compare find differences between archive and file system\n\ - -r, --append append files to the end of an archive\n\ - -u, --update only append files newer than copy in archive\n\ - -A, --catenate append tar files to an archive\n\ - --concatenate same as -A\n\ - --delete delete from the archive (not on mag tapes!)\n"), - stdout); - fputs (_("\ -\n\ -Operation modifiers:\n\ - -W, --verify attempt to verify the archive after writing it\n\ - --remove-files remove files after adding them to the archive\n\ - -k, --keep-old-files don't replace existing files when extracting\n\ - --keep-newer-files don't replace existing files that are newer\n\ - than their archive copies\n\ - --overwrite overwrite existing files when extracting\n\ - --no-overwrite-dir preserve metadata of existing directories\n\ - -U, --unlink-first remove each file prior to extracting over it\n\ - --recursive-unlink empty hierarchies prior to extracting directory\n\ - -S, --sparse handle sparse files efficiently\n\ - -O, --to-stdout extract files to standard output\n\ - -G, --incremental handle old GNU-format incremental backup\n\ - -g, --listed-incremental=FILE\n\ - handle new GNU-format incremental backup\n\ - --ignore-failed-read do not exit with nonzero on unreadable files\n\ - --occurrence[=NUM] process only the NUMth occurrence of each file in\n\ - the archive. This option is valid only in\n\ - conjunction with one of the subcommands --delete,\n\ - --diff, --extract or --list and when a list of\n\ - files is given either on the command line or\n\ - via -T option.\n\ - NUM defaults to 1.\n"), - stdout); - fputs (_("\ -\n\ -Handling of file attributes:\n\ - --owner=NAME force NAME as owner for added files\n\ - --group=NAME force NAME as group for added files\n\ - --mode=CHANGES force (symbolic) mode CHANGES for added files\n\ - --atime-preserve don't change access times on dumped files\n\ - -m, --modification-time don't extract file modified time\n\ - --same-owner try extracting files with the same ownership\n\ - --no-same-owner extract files as yourself\n\ - --numeric-owner always use numbers for user/group names\n\ - -p, --same-permissions extract permissions information\n\ - --no-same-permissions do not extract permissions information\n\ - --preserve-permissions same as -p\n\ - -s, --same-order sort names to extract to match archive\n\ - --preserve-order same as -s\n\ - --preserve same as both -p and -s\n"), - stdout); - fputs (_("\ -\n\ -Device selection and switching:\n\ - -f, --file=ARCHIVE use archive file or device ARCHIVE\n\ - --force-local archive file is local even if has a colon\n\ - --rmt-command=COMMAND use given rmt COMMAND instead of /etc/rmt\n\ - --rsh-command=COMMAND use remote COMMAND instead of rsh\n\ - -[0-7][lmh] specify drive and density\n\ - -M, --multi-volume create/list/extract multi-volume archive\n\ - -L, --tape-length=NUM change tape after writing NUM x 1024 bytes\n\ - -F, --info-script=FILE run script at end of each tape (implies -M)\n\ - --new-volume-script=FILE same as -F FILE\n\ - --volno-file=FILE use/update the volume number in FILE\n"), - stdout); - fputs (_("\ -\n\ -Device blocking:\n\ - -b, --blocking-factor=BLOCKS BLOCKS x 512 bytes per record\n\ - --record-size=SIZE SIZE bytes per record, multiple of 512\n\ - -i, --ignore-zeros ignore zeroed blocks in archive (means EOF)\n\ - -B, --read-full-records reblock as we read (for 4.2BSD pipes)\n"), - stdout); - fputs (_("\ -\n\ -Archive format selection:\n\ - --format=FMTNAME create archive of the given format.\n\ - FMTNAME is one of the following:\n\ - v7 old V7 tar format\n\ - oldgnu GNU format as per tar <= 1.12\n\ - gnu GNU tar 1.13 format\n\ - ustar POSIX 1003.1-1988 (ustar) format\n\ - posix POSIX 1003.1-2001 (pax) format\n\ - --old-archive, --portability same as --format=v7\n\ - --posix same as --format=posix\n\ - --pax-option keyword[[:]=value][,keyword[[:]=value], ...]\n\ - control pax keywords\n\ - -V, --label=NAME create archive with volume name NAME\n\ - PATTERN at list/extract time, a globbing PATTERN\n\ - -j, --bzip2 filter the archive through bzip2\n\ - -z, --gzip, --ungzip filter the archive through gzip\n\ - -Z, --compress, --uncompress filter the archive through compress\n\ - --use-compress-program=PROG filter through PROG (must accept -d)\n"), - stdout); - fputs (_("\ -\n\ -Local file selection:\n\ - -C, --directory=DIR change to directory DIR\n\ - -T, --files-from=NAME get names to extract or create from file NAME\n\ - --null -T reads null-terminated names, disable -C\n\ - --exclude=PATTERN exclude files, given as a PATTERN\n\ - -X, --exclude-from=FILE exclude patterns listed in FILE\n\ - --anchored exclude patterns match file name start (default)\n\ - --no-anchored exclude patterns match after any /\n\ - --ignore-case exclusion ignores case\n\ - --no-ignore-case exclusion is case sensitive (default)\n\ - --wildcards exclude patterns use wildcards (default)\n\ - --no-wildcards exclude patterns are plain strings\n\ - --wildcards-match-slash exclude pattern wildcards match '/' (default)\n\ - --no-wildcards-match-slash exclude pattern wildcards do not match '/'\n\ - -P, --absolute-names don't strip leading `/'s from file names\n\ - -h, --dereference dump instead the files symlinks point to\n\ - --no-recursion avoid descending automatically in directories\n\ - -l, --one-file-system stay in local file system when creating archive\n\ - -K, --starting-file=NAME begin at file NAME in the archive\n\ - --strip-path=NUM strip NUM leading components from file names\n\ - before extraction\n"), - stdout); -#if !MSDOS - fputs (_("\ - -N, --newer=DATE-OR-FILE only store files newer than DATE-OR-FILE\n\ - --newer-mtime=DATE compare date and time when data changed only\n\ - --after-date=DATE same as -N\n"), - stdout); -#endif - fputs (_("\ - --backup[=CONTROL] backup before removal, choose version control\n\ - --suffix=SUFFIX backup before removal, override usual suffix\n"), - stdout); - fputs (_("\ -\n\ -Informative output:\n\ - --help print this help, then exit\n\ - --version print tar program version number, then exit\n\ - -v, --verbose verbosely list files processed\n\ - --checkpoint print directory names while reading the archive\n\ - --check-links print a message if not all links are dumped\n\ - --totals print total bytes written while creating archive\n\ - --index-file=FILE send verbose output to FILE\n\ - --utc print file modification dates in UTC\n\ - -R, --block-number show block number within archive with each message\n\ - -w, --interactive ask for confirmation for every action\n\ - --confirmation same as -w\n"), - stdout); - fputs (_("\ -\n\ -Compatibility options:\n\ - -o when creating, same as --old-archive\n\ - when extracting, same as --no-same-owner\n"), - stdout); - - fputs (_("\ -\n\ -The backup suffix is `~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.\n\ -The version control may be set with --backup or VERSION_CONTROL, values are:\n\ -\n\ + tar -cf archive.tar foo bar # Create archive.tar from files foo and bar.\n\ + tar -tvf archive.tar # List all files in archive.tar verbosely.\n\ + tar -xf archive.tar # Extract all files from archive.tar.\n") +"\v" +N_("The backup suffix is `~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.\n\ +The version control may be set with --backup or VERSION_CONTROL, values are:\n\n\ + none, off never make backups\n\ t, numbered make numbered backups\n\ nil, existing numbered if numbered backups exist, simple otherwise\n\ - never, simple always make simple backups\n"), - stdout); - printf (_("\ -\n\ -ARCHIVE may be FILE, HOST:FILE or USER@HOST:FILE; DATE may be a textual date\n\ -or a file name starting with `/' or `.', in which case the file's date is used.\n\ -*This* `tar' defaults to `--format=%s -f%s -b%d'.\n"), - archive_format_string (DEFAULT_ARCHIVE_FORMAT), - DEFAULT_ARCHIVE, DEFAULT_BLOCKING); - printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT); - } - exit (status); -} + never, simple always make simple backups\n"); -/* Parse the options for tar. */ -/* Available option letters are DEHIJQY and aenqy. Some are reserved: +/* NOTE: + + Available option letters are DEQY and eqy. Consider the following + assignments: + [For Solaris tar compatibility =/= Is it important at all?] e exit immediately with a nonzero exit status if unexpected errors occur - E use extended headers (draft POSIX headers, that is) - I same as T (for compatibility with Solaris tar) - n the archive is quickly seekable, so don't worry about random seeks - q stop after extracting the first occurrence of the named file + E use extended headers (--format=posix) + + [q alias for --occurrence=1 =/= this would better be used for quiet?] + y per-file gzip compression Y per-block gzip compression */ -#define OPTION_STRING \ - "-01234567ABC:F:GIK:L:MN:OPRST:UV:WX:Zb:cdf:g:hijklmoprstuvwxyz" +static struct argp_option options[] = { +#define GRID 10 + {NULL, 0, NULL, 0, + N_("Main operation mode:"), GRID }, + + {"list", 't', 0, 0, + N_("list the contents of an archive"), GRID+1 }, + {"extract", 'x', 0, 0, + N_("extract files from an archive"), GRID+1 }, + {"get", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"create", 'c', 0, 0, + N_("create a new archive"), GRID+1 }, + {"diff", 'd', 0, 0, + N_("find differences between archive and file system"), GRID+1 }, + {"compare", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"append", 'r', 0, 0, + N_("append files to the end of an archive"), GRID+1 }, + {"update", 'u', 0, 0, + N_("only append files newer than copy in archive"), GRID+1 }, + {"catenate", 'A', 0, 0, + N_("append tar files to an archive"), GRID+1 }, + {"concatenate", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"delete", DELETE_OPTION, 0, 0, + N_("delete from the archive (not on mag tapes!)"), GRID+1 }, + {"test-label", TEST_LABEL_OPTION, NULL, 0, + N_("test the archive volume label and exit"), GRID+1 }, +#undef GRID + +#define GRID 20 + {NULL, 0, NULL, 0, + N_("Operation modifiers:"), GRID }, + + {"sparse", 'S', 0, 0, + N_("handle sparse files efficiently"), GRID+1 }, + {"sparse-version", SPARSE_VERSION_OPTION, N_("MAJOR[.MINOR]"), 0, + N_("set version of the sparse format to use (implies --sparse)"), GRID+1}, + {"incremental", 'G', 0, 0, + N_("handle old GNU-format incremental backup"), GRID+1 }, + {"listed-incremental", 'g', N_("FILE"), 0, + N_("handle new GNU-format incremental backup"), GRID+1 }, + {"ignore-failed-read", IGNORE_FAILED_READ_OPTION, 0, 0, + N_("do not exit with nonzero on unreadable files"), GRID+1 }, + {"occurrence", OCCURRENCE_OPTION, N_("NUMBER"), OPTION_ARG_OPTIONAL, + N_("process only the NUMBERth occurrence of each file in the archive;" + " this option is valid only in conjunction with one of the subcommands" + " --delete, --diff, --extract or --list and when a list of files" + " is given either on the command line or via the -T option;" + " NUMBER defaults to 1"), GRID+1 }, + {"seek", 'n', NULL, 0, + N_("archive is seekable"), GRID+1 }, + {"no-check-device", NO_CHECK_DEVICE_OPTION, NULL, 0, + N_("do not check device numbers when creating incremental archives"), + GRID+1 }, + {"check-device", CHECK_DEVICE_OPTION, NULL, 0, + N_("check device numbers when creating incremental archives (default)"), + GRID+1 }, +#undef GRID + +#define GRID 30 + {NULL, 0, NULL, 0, + N_("Overwrite control:"), GRID }, + + {"verify", 'W', 0, 0, + N_("attempt to verify the archive after writing it"), GRID+1 }, + {"remove-files", REMOVE_FILES_OPTION, 0, 0, + N_("remove files after adding them to the archive"), GRID+1 }, + {"keep-old-files", 'k', 0, 0, + N_("don't replace existing files when extracting"), GRID+1 }, + {"keep-newer-files", KEEP_NEWER_FILES_OPTION, 0, 0, + N_("don't replace existing files that are newer than their archive copies"), GRID+1 }, + {"overwrite", OVERWRITE_OPTION, 0, 0, + N_("overwrite existing files when extracting"), GRID+1 }, + {"unlink-first", 'U', 0, 0, + N_("remove each file prior to extracting over it"), GRID+1 }, + {"recursive-unlink", RECURSIVE_UNLINK_OPTION, 0, 0, + N_("empty hierarchies prior to extracting directory"), GRID+1 }, + {"no-overwrite-dir", NO_OVERWRITE_DIR_OPTION, 0, 0, + N_("preserve metadata of existing directories"), GRID+1 }, + {"overwrite-dir", OVERWRITE_DIR_OPTION, 0, 0, + N_("overwrite metadata of existing directories when extracting (default)"), + GRID+1 }, +#undef GRID + +#define GRID 40 + {NULL, 0, NULL, 0, + N_("Select output stream:"), GRID }, + + {"to-stdout", 'O', 0, 0, + N_("extract files to standard output"), GRID+1 }, + {"to-command", TO_COMMAND_OPTION, N_("COMMAND"), 0, + N_("pipe extracted files to another program"), GRID+1 }, + {"ignore-command-error", IGNORE_COMMAND_ERROR_OPTION, 0, 0, + N_("ignore exit codes of children"), GRID+1 }, + {"no-ignore-command-error", NO_IGNORE_COMMAND_ERROR_OPTION, 0, 0, + N_("treat non-zero exit codes of children as error"), GRID+1 }, +#undef GRID + +#define GRID 50 + {NULL, 0, NULL, 0, + N_("Handling of file attributes:"), GRID }, + + {"owner", OWNER_OPTION, N_("NAME"), 0, + N_("force NAME as owner for added files"), GRID+1 }, + {"group", GROUP_OPTION, N_("NAME"), 0, + N_("force NAME as group for added files"), GRID+1 }, + {"mtime", MTIME_OPTION, N_("DATE-OR-FILE"), 0, + N_("set mtime for added files from DATE-OR-FILE"), GRID+1 }, + {"mode", MODE_OPTION, N_("CHANGES"), 0, + N_("force (symbolic) mode CHANGES for added files"), GRID+1 }, + {"atime-preserve", ATIME_PRESERVE_OPTION, + N_("METHOD"), OPTION_ARG_OPTIONAL, + N_("preserve access times on dumped files, either by restoring the times" + " after reading (METHOD='replace'; default) or by not setting the times" + " in the first place (METHOD='system')"), GRID+1 }, + {"touch", 'm', 0, 0, + N_("don't extract file modified time"), GRID+1 }, + {"same-owner", SAME_OWNER_OPTION, 0, 0, + N_("try extracting files with the same ownership"), GRID+1 }, + {"no-same-owner", NO_SAME_OWNER_OPTION, 0, 0, + N_("extract files as yourself"), GRID+1 }, + {"numeric-owner", NUMERIC_OWNER_OPTION, 0, 0, + N_("always use numbers for user/group names"), GRID+1 }, + {"preserve-permissions", 'p', 0, 0, + N_("extract information about file permissions (default for superuser)"), + GRID+1 }, + {"same-permissions", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"no-same-permissions", NO_SAME_PERMISSIONS_OPTION, 0, 0, + N_("apply the user's umask when extracting permissions from the archive (default for ordinary users)"), GRID+1 }, + {"preserve-order", 's', 0, 0, + N_("sort names to extract to match archive"), GRID+1 }, + {"same-order", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"preserve", PRESERVE_OPTION, 0, 0, + N_("same as both -p and -s"), GRID+1 }, + {"delay-directory-restore", DELAY_DIRECTORY_RESTORE_OPTION, 0, 0, + N_("delay setting modification times and permissions of extracted" + " directories until the end of extraction"), GRID+1 }, + {"no-delay-directory-restore", NO_DELAY_DIRECTORY_RESTORE_OPTION, 0, 0, + N_("cancel the effect of --delay-directory-restore option"), GRID+1 }, +#undef GRID + +#define GRID 60 + {NULL, 0, NULL, 0, + N_("Device selection and switching:"), GRID }, + + {"file", 'f', N_("ARCHIVE"), 0, + N_("use archive file or device ARCHIVE"), GRID+1 }, + {"force-local", FORCE_LOCAL_OPTION, 0, 0, + N_("archive file is local even if it has a colon"), GRID+1 }, + {"rmt-command", RMT_COMMAND_OPTION, N_("COMMAND"), 0, + N_("use given rmt COMMAND instead of rmt"), GRID+1 }, + {"rsh-command", RSH_COMMAND_OPTION, N_("COMMAND"), 0, + N_("use remote COMMAND instead of rsh"), GRID+1 }, +#ifdef DEVICE_PREFIX + {"-[0-7][lmh]", 0, NULL, OPTION_DOC, /* It is OK, since `name' will never be + translated */ + N_("specify drive and density"), GRID+1 }, +#endif + {NULL, '0', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '1', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '2', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '3', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '4', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '5', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '6', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '7', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '8', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + {NULL, '9', NULL, OPTION_HIDDEN, NULL, GRID+1 }, + + {"multi-volume", 'M', 0, 0, + N_("create/list/extract multi-volume archive"), GRID+1 }, + {"tape-length", 'L', N_("NUMBER"), 0, + N_("change tape after writing NUMBER x 1024 bytes"), GRID+1 }, + {"info-script", 'F', N_("NAME"), 0, + N_("run script at end of each tape (implies -M)"), GRID+1 }, + {"new-volume-script", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"volno-file", VOLNO_FILE_OPTION, N_("FILE"), 0, + N_("use/update the volume number in FILE"), GRID+1 }, +#undef GRID + +#define GRID 70 + {NULL, 0, NULL, 0, + N_("Device blocking:"), GRID }, + + {"blocking-factor", 'b', N_("BLOCKS"), 0, + N_("BLOCKS x 512 bytes per record"), GRID+1 }, + {"record-size", RECORD_SIZE_OPTION, N_("NUMBER"), 0, + N_("NUMBER of bytes per record, multiple of 512"), GRID+1 }, + {"ignore-zeros", 'i', 0, 0, + N_("ignore zeroed blocks in archive (means EOF)"), GRID+1 }, + {"read-full-records", 'B', 0, 0, + N_("reblock as we read (for 4.2BSD pipes)"), GRID+1 }, +#undef GRID + +#define GRID 80 + {NULL, 0, NULL, 0, + N_("Archive format selection:"), GRID }, + + {"format", 'H', N_("FORMAT"), 0, + N_("create archive of the given format"), GRID+1 }, + + {NULL, 0, NULL, 0, N_("FORMAT is one of the following:"), GRID+2 }, + {" v7", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, N_("old V7 tar format"), + GRID+3 }, + {" oldgnu", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, + N_("GNU format as per tar <= 1.12"), GRID+3 }, + {" gnu", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, + N_("GNU tar 1.13.x format"), GRID+3 }, + {" ustar", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, + N_("POSIX 1003.1-1988 (ustar) format"), GRID+3 }, + {" pax", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, + N_("POSIX 1003.1-2001 (pax) format"), GRID+3 }, + {" posix", 0, NULL, OPTION_DOC|OPTION_NO_TRANS, N_("same as pax"), GRID+3 }, + + {"old-archive", OLD_ARCHIVE_OPTION, 0, 0, /* FIXME */ + N_("same as --format=v7"), GRID+8 }, + {"portability", 0, 0, OPTION_ALIAS, NULL, GRID+8 }, + {"posix", POSIX_OPTION, 0, 0, + N_("same as --format=posix"), GRID+8 }, + {"pax-option", PAX_OPTION, N_("keyword[[:]=value][,keyword[[:]=value]]..."), 0, + N_("control pax keywords"), GRID+8 }, + {"label", 'V', N_("TEXT"), 0, + N_("create archive with volume name TEXT; at list/extract time, use TEXT as a globbing pattern for volume name"), GRID+8 }, +#undef GRID + +#define GRID 90 + {NULL, 0, NULL, 0, + N_("Compression options:"), GRID }, + {"auto-compress", 'a', 0, 0, + N_("use archive suffix to determine the compression program"), GRID+1 }, + {"no-auto-compress", NO_AUTO_COMPRESS_OPTION, 0, 0, + N_("do not use use archive suffix to determine the compression program"), + GRID+1 }, + {"bzip2", 'j', 0, 0, + N_("filter the archive through bzip2"), GRID+1 }, + {"gzip", 'z', 0, 0, + N_("filter the archive through gzip"), GRID+1 }, + {"gunzip", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"ungzip", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"compress", 'Z', 0, 0, + N_("filter the archive through compress"), GRID+1 }, + {"uncompress", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"lzma", 'J', 0, 0, + N_("filter the archive through lzma"), GRID+1 }, + {"lzop", LZOP_OPTION, 0, 0, + N_("filter the archive through lzop"), GRID+8 }, + {"use-compress-program", 'I', N_("PROG"), 0, + N_("filter through PROG (must accept -d)"), GRID+1 }, +#undef GRID + +#define GRID 100 + {NULL, 0, NULL, 0, + N_("Local file selection:"), GRID }, + + {"add-file", ARGP_KEY_ARG, N_("FILE"), 0, + N_("add given FILE to the archive (useful if its name starts with a dash)"), GRID+1 }, + {"directory", 'C', N_("DIR"), 0, + N_("change to directory DIR"), GRID+1 }, + {"files-from", 'T', N_("FILE"), 0, + N_("get names to extract or create from FILE"), GRID+1 }, + {"null", NULL_OPTION, 0, 0, + N_("-T reads null-terminated names, disable -C"), GRID+1 }, + {"no-null", NO_NULL_OPTION, 0, 0, + N_("disable the effect of the previous --null option"), GRID+1 }, + {"unquote", UNQUOTE_OPTION, 0, 0, + N_("unquote filenames read with -T (default)"), GRID+1 }, + {"no-unquote", NO_UNQUOTE_OPTION, 0, 0, + N_("do not unquote filenames read with -T"), GRID+1 }, + {"exclude", EXCLUDE_OPTION, N_("PATTERN"), 0, + N_("exclude files, given as a PATTERN"), GRID+1 }, + {"exclude-from", 'X', N_("FILE"), 0, + N_("exclude patterns listed in FILE"), GRID+1 }, + {"exclude-caches", EXCLUDE_CACHES_OPTION, 0, 0, + N_("exclude contents of directories containing CACHEDIR.TAG, " + "except for the tag file itself"), GRID+1 }, + {"exclude-caches-under", EXCLUDE_CACHES_UNDER_OPTION, 0, 0, + N_("exclude everything under directories containing CACHEDIR.TAG"), + GRID+1 }, + {"exclude-caches-all", EXCLUDE_CACHES_ALL_OPTION, 0, 0, + N_("exclude directories containing CACHEDIR.TAG"), GRID+1 }, + {"exclude-tag", EXCLUDE_TAG_OPTION, N_("FILE"), 0, + N_("exclude contents of directories containing FILE, except" + " for FILE itself"), GRID+1 }, + {"exclude-tag-under", EXCLUDE_TAG_UNDER_OPTION, N_("FILE"), 0, + N_("exclude everything under directories containing FILE"), GRID+1 }, + {"exclude-tag-all", EXCLUDE_TAG_ALL_OPTION, N_("FILE"), 0, + N_("exclude directories containing FILE"), GRID+1 }, + {"exclude-vcs", EXCLUDE_VCS_OPTION, NULL, 0, + N_("exclude version control system directories"), GRID+1 }, + {"no-recursion", NO_RECURSION_OPTION, 0, 0, + N_("avoid descending automatically in directories"), GRID+1 }, + {"one-file-system", ONE_FILE_SYSTEM_OPTION, 0, 0, + N_("stay in local file system when creating archive"), GRID+1 }, + {"recursion", RECURSION_OPTION, 0, 0, + N_("recurse into directories (default)"), GRID+1 }, + {"absolute-names", 'P', 0, 0, + N_("don't strip leading `/'s from file names"), GRID+1 }, + {"dereference", 'h', 0, 0, + N_("follow symlinks; archive and dump the files they point to"), GRID+1 }, + {"hard-dereference", HARD_DEREFERENCE_OPTION, 0, 0, + N_("follow hard links; archive and dump the files they refer to"), GRID+1 }, + {"starting-file", 'K', N_("MEMBER-NAME"), 0, + N_("begin at member MEMBER-NAME in the archive"), GRID+1 }, + {"newer", 'N', N_("DATE-OR-FILE"), 0, + N_("only store files newer than DATE-OR-FILE"), GRID+1 }, + {"after-date", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"newer-mtime", NEWER_MTIME_OPTION, N_("DATE"), 0, + N_("compare date and time when data changed only"), GRID+1 }, + {"backup", BACKUP_OPTION, N_("CONTROL"), OPTION_ARG_OPTIONAL, + N_("backup before removal, choose version CONTROL"), GRID+1 }, + {"suffix", SUFFIX_OPTION, N_("STRING"), 0, + N_("backup before removal, override usual suffix ('~' unless overridden by environment variable SIMPLE_BACKUP_SUFFIX)"), GRID+1 }, +#undef GRID + +#define GRID 110 + {NULL, 0, NULL, 0, + N_("File name transformations:"), GRID }, + {"strip-components", STRIP_COMPONENTS_OPTION, N_("NUMBER"), 0, + N_("strip NUMBER leading components from file names on extraction"), + GRID+1 }, + {"transform", TRANSFORM_OPTION, N_("EXPRESSION"), 0, + N_("use sed replace EXPRESSION to transform file names"), GRID+1 }, + {"xform", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, +#undef GRID + +#define GRID 120 + {NULL, 0, NULL, 0, + N_("File name matching options (affect both exclude and include patterns):"), + GRID }, + {"ignore-case", IGNORE_CASE_OPTION, 0, 0, + N_("ignore case"), GRID+1 }, + {"anchored", ANCHORED_OPTION, 0, 0, + N_("patterns match file name start"), GRID+1 }, + {"no-anchored", NO_ANCHORED_OPTION, 0, 0, + N_("patterns match after any `/' (default for exclusion)"), GRID+1 }, + {"no-ignore-case", NO_IGNORE_CASE_OPTION, 0, 0, + N_("case sensitive matching (default)"), GRID+1 }, + {"wildcards", WILDCARDS_OPTION, 0, 0, + N_("use wildcards (default for exclusion)"), GRID+1 }, + {"no-wildcards", NO_WILDCARDS_OPTION, 0, 0, + N_("verbatim string matching"), GRID+1 }, + {"no-wildcards-match-slash", NO_WILDCARDS_MATCH_SLASH_OPTION, 0, 0, + N_("wildcards do not match `/'"), GRID+1 }, + {"wildcards-match-slash", WILDCARDS_MATCH_SLASH_OPTION, 0, 0, + N_("wildcards match `/' (default for exclusion)"), GRID+1 }, +#undef GRID + +#define GRID 130 + {NULL, 0, NULL, 0, + N_("Informative output:"), GRID }, + + {"verbose", 'v', 0, 0, + N_("verbosely list files processed"), GRID+1 }, + {"checkpoint", CHECKPOINT_OPTION, N_("NUMBER"), OPTION_ARG_OPTIONAL, + N_("display progress messages every NUMBERth record (default 10)"), + GRID+1 }, + {"checkpoint-action", CHECKPOINT_ACTION_OPTION, N_("ACTION"), 0, + N_("execute ACTION on each checkpoint"), + GRID+1 }, + {"check-links", 'l', 0, 0, + N_("print a message if not all links are dumped"), GRID+1 }, + {"totals", TOTALS_OPTION, N_("SIGNAL"), OPTION_ARG_OPTIONAL, + N_("print total bytes after processing the archive; " + "with an argument - print total bytes when this SIGNAL is delivered; " + "Allowed signals are: SIGHUP, SIGQUIT, SIGINT, SIGUSR1 and SIGUSR2; " + "the names without SIG prefix are also accepted"), GRID+1 }, + {"utc", UTC_OPTION, 0, 0, + N_("print file modification dates in UTC"), GRID+1 }, + {"index-file", INDEX_FILE_OPTION, N_("FILE"), 0, + N_("send verbose output to FILE"), GRID+1 }, + {"block-number", 'R', 0, 0, + N_("show block number within archive with each message"), GRID+1 }, + {"interactive", 'w', 0, 0, + N_("ask for confirmation for every action"), GRID+1 }, + {"confirmation", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"show-defaults", SHOW_DEFAULTS_OPTION, 0, 0, + N_("show tar defaults"), GRID+1 }, + {"show-omitted-dirs", SHOW_OMITTED_DIRS_OPTION, 0, 0, + N_("when listing or extracting, list each directory that does not match search criteria"), GRID+1 }, + {"show-transformed-names", SHOW_TRANSFORMED_NAMES_OPTION, 0, 0, + N_("show file or archive names after transformation"), + GRID+1 }, + {"show-stored-names", 0, 0, OPTION_ALIAS, NULL, GRID+1 }, + {"quoting-style", QUOTING_STYLE_OPTION, N_("STYLE"), 0, + N_("set name quoting style; see below for valid STYLE values"), GRID+1 }, + {"quote-chars", QUOTE_CHARS_OPTION, N_("STRING"), 0, + N_("additionally quote characters from STRING"), GRID+1 }, + {"no-quote-chars", NO_QUOTE_CHARS_OPTION, N_("STRING"), 0, + N_("disable quoting for characters from STRING"), GRID+1 }, +#undef GRID + +#define GRID 140 + {NULL, 0, NULL, 0, + N_("Compatibility options:"), GRID }, + + {NULL, 'o', 0, 0, + N_("when creating, same as --old-archive; when extracting, same as --no-same-owner"), GRID+1 }, +#undef GRID + +#define GRID 150 + {NULL, 0, NULL, 0, + N_("Other options:"), GRID }, + + {"restrict", RESTRICT_OPTION, 0, 0, + N_("disable use of some potentially harmful options"), -1 }, + + {"help", '?', 0, 0, N_("give this help list"), -1}, + {"usage", USAGE_OPTION, 0, 0, N_("give a short usage message"), -1}, + {"version", VERSION_OPTION, 0, 0, N_("print program version"), -1}, + /* FIXME -V (--label) conflicts with the default short option for + --version */ + {"HANG", HANG_OPTION, "SECS", OPTION_ARG_OPTIONAL | OPTION_HIDDEN, + N_("hang for SECS seconds (default 3600)"), 0}, +#undef GRID + + {0, 0, 0, 0, 0, 0} +}; + +static char const *const atime_preserve_args[] = +{ + "replace", "system", NULL +}; + +static enum atime_preserve const atime_preserve_types[] = +{ + replace_atime_preserve, system_atime_preserve +}; + +/* Make sure atime_preserve_types has as much entries as atime_preserve_args + (minus 1 for NULL guard) */ +ARGMATCH_VERIFY (atime_preserve_args, atime_preserve_types); + +/* Wildcard matching settings */ +enum wildcards + { + default_wildcards, /* For exclusion == enable_wildcards, + for inclusion == disable_wildcards */ + disable_wildcards, + enable_wildcards + }; + +struct tar_args /* Variables used during option parsing */ +{ + struct textual_date *textual_date; /* Keeps the arguments to --newer-mtime + and/or --date option if they are + textual dates */ + enum wildcards wildcards; /* Wildcard settings (--wildcards/ + --no-wildcards) */ + int matching_flags; /* exclude_fnmatch options */ + int include_anchored; /* Pattern anchoring options used for + file inclusion */ + bool o_option; /* True if -o option was given */ + bool pax_option; /* True if --pax-option was given */ + char const *backup_suffix_string; /* --suffix option argument */ + char const *version_control_string; /* --backup option argument */ + bool input_files; /* True if some input files where given */ + int compress_autodetect; /* True if compression autodetection should + be attempted when creating archives */ +}; + + +#define MAKE_EXCL_OPTIONS(args) \ + ((((args)->wildcards != disable_wildcards) ? EXCLUDE_WILDCARDS : 0) \ + | (args)->matching_flags \ + | recursion_option) + +#define MAKE_INCL_OPTIONS(args) \ + ((((args)->wildcards == enable_wildcards) ? EXCLUDE_WILDCARDS : 0) \ + | (args)->include_anchored \ + | (args)->matching_flags \ + | recursion_option) + +void +exclude_vcs_files () +{ + int i; + static char *vcs_file[] = { + /* CVS: */ + "CVS", + ".cvsignore", + /* RCS: */ + "RCS", + /* SCCS: */ + "SCCS", + /* SVN: */ + ".svn", + /* git: */ + ".git", + ".gitignore", + /* Arch: */ + ".arch-ids", + "{arch}", + "=RELEASE-ID", + "=meta-update", + "=update", + /* Bazaar */ + ".bzr", + ".bzrignore", + ".bzrtags", + /* Mercurial */ + ".hg", + ".hgignore", + ".hgtags", + /* darcs */ + "_darcs", + NULL + }; + + for (i = 0; vcs_file[i]; i++) + add_exclude (excluded, vcs_file[i], 0); +} + + +#ifdef REMOTE_SHELL +# define DECL_SHOW_DEFAULT_SETTINGS(stream, printer) \ +{ \ + printer (stream, \ + "--format=%s -f%s -b%d --quoting-style=%s --rmt-command=%s", \ + archive_format_string (DEFAULT_ARCHIVE_FORMAT), \ + DEFAULT_ARCHIVE, DEFAULT_BLOCKING, \ + quoting_style_args[DEFAULT_QUOTING_STYLE], \ + DEFAULT_RMT_COMMAND); \ + printer (stream, " --rsh-command=%s", REMOTE_SHELL); \ + printer (stream, "\n"); \ +} +#else +# define DECL_SHOW_DEFAULT_SETTINGS(stream, printer) \ +{ \ + printer (stream, \ + "--format=%s -f%s -b%d --quoting-style=%s --rmt-command=%s", \ + archive_format_string (DEFAULT_ARCHIVE_FORMAT), \ + DEFAULT_ARCHIVE, DEFAULT_BLOCKING, \ + quoting_style_args[DEFAULT_QUOTING_STYLE], \ + DEFAULT_RMT_COMMAND); \ + printer (stream, "\n"); \ +} +#endif + +static void +show_default_settings (FILE *fp) + DECL_SHOW_DEFAULT_SETTINGS(fp, fprintf) + +static void +show_default_settings_fs (argp_fmtstream_t fs) + DECL_SHOW_DEFAULT_SETTINGS(fs, argp_fmtstream_printf) static void set_subcommand_option (enum subcommand subcommand) @@ -573,693 +922,1251 @@ set_subcommand_option (enum subcommand subcommand) static void set_use_compress_program_option (const char *string) { - if (use_compress_program_option && strcmp (use_compress_program_option, string) != 0) + if (use_compress_program_option + && strcmp (use_compress_program_option, string) != 0) USAGE_ERROR ((0, 0, _("Conflicting compression options"))); use_compress_program_option = string; } + +static RETSIGTYPE +sigstat (int signo) +{ + compute_duration (); + print_total_stats (); +#ifndef HAVE_SIGACTION + signal (signo, sigstat); +#endif +} static void -decode_options (int argc, char **argv) +stat_on_signal (int signo) { - int optchar; /* option letter */ - int input_files; /* number of input files */ - char const *textual_date_option = 0; - char const *backup_suffix_string; - char const *version_control_string = 0; - int exclude_options = EXCLUDE_WILDCARDS; - bool o_option = 0; - int pax_option = 0; +#ifdef HAVE_SIGACTION + struct sigaction act; + act.sa_handler = sigstat; + sigemptyset (&act.sa_mask); + act.sa_flags = 0; + sigaction (signo, &act, NULL); +#else + signal (signo, sigstat); +#endif +} - /* Set some default option values. */ +void +set_stat_signal (const char *name) +{ + static struct sigtab + { + char *name; + int signo; + } sigtab[] = { + { "SIGUSR1", SIGUSR1 }, + { "USR1", SIGUSR1 }, + { "SIGUSR2", SIGUSR2 }, + { "USR2", SIGUSR2 }, + { "SIGHUP", SIGHUP }, + { "HUP", SIGHUP }, + { "SIGINT", SIGINT }, + { "INT", SIGINT }, + { "SIGQUIT", SIGQUIT }, + { "QUIT", SIGQUIT } + }; + struct sigtab *p; + + for (p = sigtab; p < sigtab + sizeof (sigtab) / sizeof (sigtab[0]); p++) + if (strcmp (p->name, name) == 0) + { + stat_on_signal (p->signo); + return; + } + FATAL_ERROR ((0, 0, _("Unknown signal name: %s"), name)); +} - subcommand_option = UNKNOWN_SUBCOMMAND; - archive_format = DEFAULT_FORMAT; - blocking_factor = DEFAULT_BLOCKING; - record_size = DEFAULT_BLOCKING * BLOCKSIZE; - excluded = new_exclude (); - newer_mtime_option.tv_sec = TYPE_MINIMUM (time_t); - newer_mtime_option.tv_nsec = -1; - recursion_option = FNM_LEADING_DIR; + +struct textual_date +{ + struct textual_date *next; + struct timespec *ts; + const char *option; + const char *date; +}; - owner_option = -1; - group_option = -1; +static void +get_date_or_file (struct tar_args *args, const char *option, + const char *str, struct timespec *ts) +{ + if (FILE_SYSTEM_PREFIX_LEN (str) != 0 + || ISSLASH (*str) + || *str == '.') + { + struct stat st; + if (deref_stat (dereference_option, str, &st) != 0) + { + stat_error (str); + USAGE_ERROR ((0, 0, _("Date sample file not found"))); + } + *ts = get_stat_mtime (&st); + } + else + { + if (! get_date (ts, str, NULL)) + { + WARN ((0, 0, _("Substituting %s for unknown date format %s"), + tartime (*ts, false), quote (str))); + ts->tv_nsec = 0; + } + else + { + struct textual_date *p = xmalloc (sizeof (*p)); + p->ts = ts; + p->option = option; + p->date = str; + p->next = args->textual_date; + args->textual_date = p; + } + } +} - backup_suffix_string = getenv ("SIMPLE_BACKUP_SUFFIX"); +static void +report_textual_dates (struct tar_args *args) +{ + struct textual_date *p; + for (p = args->textual_date; p; ) + { + struct textual_date *next = p->next; + char const *treated_as = tartime (*p->ts, true); + if (strcmp (p->date, treated_as) != 0) + WARN ((0, 0, _("Option %s: Treating date `%s' as %s"), + p->option, p->date, treated_as)); + free (p); + p = next; + } +} - /* Convert old-style tar call by exploding option element and rearranging - options accordingly. */ + +static volatile int _argp_hang; - if (argc > 1 && argv[1][0] != '-') +/* Either NL or NUL, as decided by the --null option. */ +static char filename_terminator; + +enum read_file_list_state /* Result of reading file name from the list file */ + { + file_list_success, /* OK, name read successfully */ + file_list_end, /* End of list file */ + file_list_zero, /* Zero separator encountered where it should not */ + file_list_skip /* Empty (zero-length) entry encountered, skip it */ + }; + +/* Read from FP a sequence of characters up to TERM and put them + into STK. + */ +static enum read_file_list_state +read_name_from_file (FILE *fp, struct obstack *stk, int term) +{ + int c; + size_t counter = 0; + + for (c = getc (fp); c != EOF && c != term; c = getc (fp)) { - int new_argc; /* argc value for rearranged arguments */ - char **new_argv; /* argv value for rearranged arguments */ - char *const *in; /* cursor into original argv */ - char **out; /* cursor into rearranged argv */ - const char *letter; /* cursor into old option letters */ - char buffer[3]; /* constructed option buffer */ - const char *cursor; /* cursor in OPTION_STRING */ + if (c == 0) + { + /* We have read a zero separator. The file possibly is + zero-separated */ + return file_list_zero; + } + obstack_1grow (stk, c); + counter++; + } - /* Initialize a constructed option. */ + if (counter == 0 && c != EOF) + return file_list_skip; - buffer[0] = '-'; - buffer[2] = '\0'; + obstack_1grow (stk, 0); - /* Allocate a new argument array, and copy program name in it. */ + return (counter == 0 && c == EOF) ? file_list_end : file_list_success; +} - new_argc = argc - 1 + strlen (argv[1]); - new_argv = xmalloc ((new_argc + 1) * sizeof (char *)); - in = argv; - out = new_argv; - *out++ = *in++; + +static bool files_from_option; /* When set, tar will not refuse to create + empty archives */ +static struct obstack argv_stk; /* Storage for additional command line options + read using -T option */ - /* Copy each old letter option as a separate option, and have the - corresponding argument moved next to it. */ +/* Prevent recursive inclusion of the same file */ +struct file_id_list +{ + struct file_id_list *next; + ino_t ino; + dev_t dev; +}; - for (letter = *in++; *letter; letter++) +static struct file_id_list *file_id_list; + +static void +add_file_id (const char *filename) +{ + struct file_id_list *p; + struct stat st; + + if (stat (filename, &st)) + stat_fatal (filename); + for (p = file_id_list; p; p = p->next) + if (p->ino == st.st_ino && p->dev == st.st_dev) + { + FATAL_ERROR ((0, 0, _("%s: file list already read"), + quotearg_colon (filename))); + } + p = xmalloc (sizeof *p); + p->next = file_id_list; + p->ino = st.st_ino; + p->dev = st.st_dev; + file_id_list = p; +} + +/* Default density numbers for [0-9][lmh] device specifications */ + +#ifndef LOW_DENSITY_NUM +# define LOW_DENSITY_NUM 0 +#endif + +#ifndef MID_DENSITY_NUM +# define MID_DENSITY_NUM 8 +#endif + +#ifndef HIGH_DENSITY_NUM +# define HIGH_DENSITY_NUM 16 +#endif + +static void +update_argv (const char *filename, struct argp_state *state) +{ + FILE *fp; + size_t count = 0, i; + char *start, *p; + char **new_argv; + size_t new_argc; + bool is_stdin = false; + enum read_file_list_state read_state; + int term = filename_terminator; + + if (!strcmp (filename, "-")) + { + is_stdin = true; + request_stdin ("-T"); + fp = stdin; + } + else + { + add_file_id (filename); + if ((fp = fopen (filename, "r")) == NULL) + open_fatal (filename); + } + + while ((read_state = read_name_from_file (fp, &argv_stk, term)) + != file_list_end) + { + switch (read_state) { - buffer[1] = *letter; - *out++ = xstrdup (buffer); - cursor = strchr (OPTION_STRING, *letter); - if (cursor && cursor[1] == ':') - { - if (in < argv + argc) - *out++ = *in++; + case file_list_success: + count++; + break; + + case file_list_end: /* won't happen, just to pacify gcc */ + break; + + case file_list_zero: + { + size_t size; + + WARN ((0, 0, N_("%s: file name read contains nul character"), + quotearg_colon (filename))); + + /* Prepare new stack contents */ + size = obstack_object_size (&argv_stk); + p = obstack_finish (&argv_stk); + for (; size > 0; size--, p++) + if (*p) + obstack_1grow (&argv_stk, *p); else - USAGE_ERROR ((0, 0, _("Old option `%c' requires an argument."), - *letter)); + obstack_1grow (&argv_stk, '\n'); + obstack_1grow (&argv_stk, 0); + count = 1; + /* Read rest of files using new filename terminator */ + term = 0; + break; + } + + case file_list_skip: + break; + } + } + + if (!is_stdin) + fclose (fp); + + if (count == 0) + return; + + start = obstack_finish (&argv_stk); + + if (term == 0) + for (p = start; *p; p += strlen (p) + 1) + if (p[0] == '-') + count++; + + new_argc = state->argc + count; + new_argv = xmalloc (sizeof (state->argv[0]) * (new_argc + 1)); + memcpy (new_argv, state->argv, sizeof (state->argv[0]) * (state->argc + 1)); + state->argv = new_argv; + memmove (&state->argv[state->next + count], &state->argv[state->next], + (state->argc - state->next + 1) * sizeof (state->argv[0])); + + state->argc = new_argc; + + for (i = state->next, p = start; *p; p += strlen (p) + 1, i++) + { + if (term == 0 && p[0] == '-') + state->argv[i++] = "--add-file"; + state->argv[i] = p; + } +} + + +static void +tar_help (struct argp_state *state) +{ + argp_fmtstream_t fs; + state->flags |= ARGP_NO_EXIT; + argp_state_help (state, state->out_stream, + ARGP_HELP_STD_HELP & ~ARGP_HELP_BUG_ADDR); + /* FIXME: use struct uparams.rmargin (from argp-help.c) instead of 79 */ + fs = argp_make_fmtstream (state->out_stream, 0, 79, 0); + + argp_fmtstream_printf (fs, "\n%s\n\n", + _("Valid arguments for --quoting-style options are:")); + tar_list_quoting_styles (fs, " "); + + argp_fmtstream_puts (fs, _("\n*This* tar defaults to:\n")); + show_default_settings_fs (fs); + argp_fmtstream_putc (fs, '\n'); + argp_fmtstream_printf (fs, _("Report bugs to %s.\n"), + argp_program_bug_address); + argp_fmtstream_free (fs); +} + +static error_t +parse_opt (int key, char *arg, struct argp_state *state) +{ + struct tar_args *args = state->input; + + switch (key) + { + case ARGP_KEY_ARG: + /* File name or non-parsed option, because of ARGP_IN_ORDER */ + name_add_name (arg, MAKE_INCL_OPTIONS (args)); + args->input_files = true; + break; + + case 'A': + set_subcommand_option (CAT_SUBCOMMAND); + break; + + case 'a': + args->compress_autodetect = true; + break; + + case NO_AUTO_COMPRESS_OPTION: + args->compress_autodetect = false; + break; + + case 'b': + { + uintmax_t u; + if (! (xstrtoumax (arg, 0, 10, &u, "") == LONGINT_OK + && u == (blocking_factor = u) + && 0 < blocking_factor + && u == (record_size = u * BLOCKSIZE) / BLOCKSIZE)) + USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (arg), + _("Invalid blocking factor"))); + } + break; + + case 'B': + /* Try to reblock input records. For reading 4.2BSD pipes. */ + + /* It would surely make sense to exchange -B and -R, but it seems + that -B has been used for a long while in Sun tar and most + BSD-derived systems. This is a consequence of the block/record + terminology confusion. */ + + read_full_records_option = true; + break; + + case 'c': + set_subcommand_option (CREATE_SUBCOMMAND); + break; + + case 'C': + name_add_dir (arg); + break; + + case 'd': + set_subcommand_option (DIFF_SUBCOMMAND); + break; + + case 'f': + if (archive_names == allocated_archive_names) + archive_name_array = x2nrealloc (archive_name_array, + &allocated_archive_names, + sizeof (archive_name_array[0])); + + archive_name_array[archive_names++] = arg; + break; + + case 'F': + /* Since -F is only useful with -M, make it implied. Run this + script at the end of each tape. */ + + info_script_option = arg; + multi_volume_option = true; + break; + + case 'g': + listed_incremental_option = arg; + after_date_option = true; + /* Fall through. */ + + case 'G': + /* We are making an incremental dump (FIXME: are we?); save + directories at the beginning of the archive, and include in each + directory its contents. */ + + incremental_option = true; + break; + + case 'h': + /* Follow symbolic links. */ + dereference_option = true; + break; + + case HARD_DEREFERENCE_OPTION: + hard_dereference_option = true; + break; + + case 'i': + /* Ignore zero blocks (eofs). This can't be the default, + because Unix tar writes two blocks of zeros, then pads out + the record with garbage. */ + + ignore_zeros_option = true; + break; + + case 'j': + set_use_compress_program_option ("bzip2"); + break; + + case 'J': + set_use_compress_program_option ("lzma"); + break; + + case 'k': + /* Don't replace existing files. */ + old_files_option = KEEP_OLD_FILES; + break; + + case 'K': + starting_file_option = true; + addname (arg, 0); + break; + + case ONE_FILE_SYSTEM_OPTION: + /* When dumping directories, don't dump files/subdirectories + that are on other filesystems. */ + one_file_system_option = true; + break; + + case 'l': + check_links_option = 1; + break; + + case 'L': + { + uintmax_t u; + if (xstrtoumax (arg, 0, 10, &u, "") != LONGINT_OK) + USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (arg), + _("Invalid tape length"))); + tape_length_option = 1024 * (tarlong) u; + multi_volume_option = true; + } + break; + + case LZOP_OPTION: + set_use_compress_program_option ("lzop"); + break; + + case 'm': + touch_option = true; + break; + + case 'M': + /* Make multivolume archive: when we can't write any more into + the archive, re-open it, and continue writing. */ + + multi_volume_option = true; + break; + + case MTIME_OPTION: + get_date_or_file (args, "--mtime", arg, &mtime_option); + set_mtime_option = true; + break; + + case 'n': + seekable_archive = true; + break; + + case 'N': + after_date_option = true; + /* Fall through. */ + + case NEWER_MTIME_OPTION: + if (NEWER_OPTION_INITIALIZED (newer_mtime_option)) + USAGE_ERROR ((0, 0, _("More than one threshold date"))); + get_date_or_file (args, + key == NEWER_MTIME_OPTION ? "--newer-mtime" + : "--after-date", arg, &newer_mtime_option); + break; + + case 'o': + args->o_option = true; + break; + + case 'O': + to_stdout_option = true; + break; + + case 'p': + same_permissions_option = true; + break; + + case 'P': + absolute_names_option = true; + break; + + case 'r': + set_subcommand_option (APPEND_SUBCOMMAND); + break; + + case 'R': + /* Print block numbers for debugging bad tar archives. */ + + /* It would surely make sense to exchange -B and -R, but it seems + that -B has been used for a long while in Sun tar and most + BSD-derived systems. This is a consequence of the block/record + terminology confusion. */ + + block_number_option = true; + break; + + case 's': + /* Names to extract are sorted. */ + + same_order_option = true; + break; + + case 'S': + sparse_option = true; + break; + + case SPARSE_VERSION_OPTION: + sparse_option = true; + { + char *p; + tar_sparse_major = strtoul (arg, &p, 10); + if (*p) + { + if (*p != '.') + USAGE_ERROR ((0, 0, _("Invalid sparse version value"))); + tar_sparse_minor = strtoul (p + 1, &p, 10); + if (*p) + USAGE_ERROR ((0, 0, _("Invalid sparse version value"))); + } + } + break; + + case 't': + set_subcommand_option (LIST_SUBCOMMAND); + verbose_option++; + break; + + case TEST_LABEL_OPTION: + set_subcommand_option (LIST_SUBCOMMAND); + test_label_option = true; + break; + + case 'T': + update_argv (arg, state); + /* Indicate we've been given -T option. This is for backward + compatibility only, so that `tar cfT archive /dev/null will + succeed */ + files_from_option = true; + break; + + case 'u': + set_subcommand_option (UPDATE_SUBCOMMAND); + break; + + case 'U': + old_files_option = UNLINK_FIRST_OLD_FILES; + break; + + case UTC_OPTION: + utc_option = true; + break; + + case 'v': + verbose_option++; + break; + + case 'V': + volume_label_option = arg; + break; + + case 'w': + interactive_option = true; + break; + + case 'W': + verify_option = true; + break; + + case 'x': + set_subcommand_option (EXTRACT_SUBCOMMAND); + break; + + case 'X': + if (add_exclude_file (add_exclude, excluded, arg, + MAKE_EXCL_OPTIONS (args), '\n') + != 0) + { + int e = errno; + FATAL_ERROR ((0, e, "%s", quotearg_colon (arg))); + } + break; + + case 'z': + set_use_compress_program_option ("gzip"); + break; + + case 'Z': + set_use_compress_program_option ("compress"); + break; + + case ANCHORED_OPTION: + args->matching_flags |= EXCLUDE_ANCHORED; + break; + + case ATIME_PRESERVE_OPTION: + atime_preserve_option = + (arg + ? XARGMATCH ("--atime-preserve", arg, + atime_preserve_args, atime_preserve_types) + : replace_atime_preserve); + if (! O_NOATIME && atime_preserve_option == system_atime_preserve) + FATAL_ERROR ((0, 0, + _("--atime-preserve='system' is not supported" + " on this platform"))); + break; + + case CHECK_DEVICE_OPTION: + check_device_option = true; + break; + + case NO_CHECK_DEVICE_OPTION: + check_device_option = false; + break; + + case CHECKPOINT_OPTION: + if (arg) + { + char *p; + + if (*arg == '.') + { + checkpoint_compile_action ("."); + arg++; } + checkpoint_option = strtoul (arg, &p, 0); + if (*p) + FATAL_ERROR ((0, 0, + _("--checkpoint value is not an integer"))); } + else + checkpoint_option = DEFAULT_CHECKPOINT; + break; - /* Copy all remaining options. */ + case CHECKPOINT_ACTION_OPTION: + checkpoint_compile_action (arg); + break; + + case BACKUP_OPTION: + backup_option = true; + if (arg) + args->version_control_string = arg; + break; - while (in < argv + argc) - *out++ = *in++; - *out = 0; + case DELAY_DIRECTORY_RESTORE_OPTION: + delay_directory_restore_option = true; + break; + + case NO_DELAY_DIRECTORY_RESTORE_OPTION: + delay_directory_restore_option = false; + break; + + case DELETE_OPTION: + set_subcommand_option (DELETE_SUBCOMMAND); + break; + + case EXCLUDE_OPTION: + add_exclude (excluded, arg, MAKE_EXCL_OPTIONS (args)); + break; + + case EXCLUDE_CACHES_OPTION: + add_exclusion_tag ("CACHEDIR.TAG", exclusion_tag_contents, + cachedir_file_p); + break; + + case EXCLUDE_CACHES_UNDER_OPTION: + add_exclusion_tag ("CACHEDIR.TAG", exclusion_tag_under, + cachedir_file_p); + break; - /* Replace the old option list by the new one. */ + case EXCLUDE_CACHES_ALL_OPTION: + add_exclusion_tag ("CACHEDIR.TAG", exclusion_tag_all, + cachedir_file_p); + break; - argc = new_argc; - argv = new_argv; - } + case EXCLUDE_TAG_OPTION: + add_exclusion_tag (arg, exclusion_tag_contents, NULL); + break; - /* Parse all options and non-options as they appear. */ + case EXCLUDE_TAG_UNDER_OPTION: + add_exclusion_tag (arg, exclusion_tag_under, NULL); + break; - input_files = 0; + case EXCLUDE_TAG_ALL_OPTION: + add_exclusion_tag (arg, exclusion_tag_all, NULL); + break; - prepend_default_options (getenv ("TAR_OPTIONS"), &argc, &argv); + case EXCLUDE_VCS_OPTION: + exclude_vcs_files (); + break; + + case FORCE_LOCAL_OPTION: + force_local_option = true; + break; - while (optchar = getopt_long (argc, argv, OPTION_STRING, long_options, 0), - optchar != -1) - switch (optchar) - { - case '?': - usage (TAREXIT_FAILURE); + case 'H': + set_archive_format (arg); + break; + + case INDEX_FILE_OPTION: + index_file_name = arg; + break; - case 0: - break; + case IGNORE_CASE_OPTION: + args->matching_flags |= FNM_CASEFOLD; + break; - case 1: - /* File name or non-parsed option, because of RETURN_IN_ORDER - ordering triggered by the leading dash in OPTION_STRING. */ + case IGNORE_COMMAND_ERROR_OPTION: + ignore_command_error_option = true; + break; - name_add (optarg); - input_files++; - break; + case IGNORE_FAILED_READ_OPTION: + ignore_failed_read_option = true; + break; - case 'A': - set_subcommand_option (CAT_SUBCOMMAND); - break; + case KEEP_NEWER_FILES_OPTION: + old_files_option = KEEP_NEWER_FILES; + break; - case 'b': + case GROUP_OPTION: + if (! (strlen (arg) < GNAME_FIELD_SIZE + && gname_to_gid (arg, &group_option))) { - uintmax_t u; - if (! (xstrtoumax (optarg, 0, 10, &u, "") == LONGINT_OK - && u == (blocking_factor = u) - && 0 < blocking_factor - && u == (record_size = u * BLOCKSIZE) / BLOCKSIZE)) - USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (optarg), - _("Invalid blocking factor"))); + uintmax_t g; + if (xstrtoumax (arg, 0, 10, &g, "") == LONGINT_OK + && g == (gid_t) g) + group_option = g; + else + FATAL_ERROR ((0, 0, "%s: %s", quotearg_colon (arg), + _("%s: Invalid group"))); } - break; + break; - case 'B': - /* Try to reblock input records. For reading 4.2BSD pipes. */ + case MODE_OPTION: + mode_option = mode_compile (arg); + if (!mode_option) + FATAL_ERROR ((0, 0, _("Invalid mode given on option"))); + initial_umask = umask (0); + umask (initial_umask); + break; - /* It would surely make sense to exchange -B and -R, but it seems - that -B has been used for a long while in Sun tar and most - BSD-derived systems. This is a consequence of the block/record - terminology confusion. */ + case NO_ANCHORED_OPTION: + args->include_anchored = 0; /* Clear the default for comman line args */ + args->matching_flags &= ~ EXCLUDE_ANCHORED; + break; - read_full_records_option = true; - break; + case NO_IGNORE_CASE_OPTION: + args->matching_flags &= ~ FNM_CASEFOLD; + break; - case 'c': - set_subcommand_option (CREATE_SUBCOMMAND); - break; + case NO_IGNORE_COMMAND_ERROR_OPTION: + ignore_command_error_option = false; + break; - case 'C': - name_add ("-C"); - name_add (optarg); - break; + case NO_OVERWRITE_DIR_OPTION: + old_files_option = NO_OVERWRITE_DIR_OLD_FILES; + break; - case 'd': - set_subcommand_option (DIFF_SUBCOMMAND); - break; + case NO_QUOTE_CHARS_OPTION: + for (;*arg; arg++) + set_char_quoting (NULL, *arg, 0); + break; - case 'f': - if (archive_names == allocated_archive_names) - { - allocated_archive_names *= 2; - archive_name_array = - xrealloc (archive_name_array, - sizeof (const char *) * allocated_archive_names); - } - archive_name_array[archive_names++] = optarg; - break; + case NO_WILDCARDS_OPTION: + args->wildcards = disable_wildcards; + break; - case 'F': - /* Since -F is only useful with -M, make it implied. Run this - script at the end of each tape. */ + case NO_WILDCARDS_MATCH_SLASH_OPTION: + args->matching_flags |= FNM_FILE_NAME; + break; - info_script_option = optarg; - multi_volume_option = true; - break; + case NULL_OPTION: + filename_terminator = '\0'; + break; - case 'g': - listed_incremental_option = optarg; - after_date_option = true; - /* Fall through. */ + case NO_NULL_OPTION: + filename_terminator = '\n'; + break; + + case NUMERIC_OWNER_OPTION: + numeric_owner_option = true; + break; - case 'G': - /* We are making an incremental dump (FIXME: are we?); save - directories at the beginning of the archive, and include in each - directory its contents. */ + case OCCURRENCE_OPTION: + if (!arg) + occurrence_option = 1; + else + { + uintmax_t u; + if (xstrtoumax (arg, 0, 10, &u, "") == LONGINT_OK) + occurrence_option = u; + else + FATAL_ERROR ((0, 0, "%s: %s", quotearg_colon (arg), + _("Invalid number"))); + } + break; - incremental_option = true; - break; + case OVERWRITE_DIR_OPTION: + old_files_option = DEFAULT_OLD_FILES; + break; - case 'h': - /* Follow symbolic links. */ - dereference_option = true; - break; + case OVERWRITE_OPTION: + old_files_option = OVERWRITE_OLD_FILES; + break; - case 'i': - /* Ignore zero blocks (eofs). This can't be the default, - because Unix tar writes two blocks of zeros, then pads out - the record with garbage. */ + case OWNER_OPTION: + if (! (strlen (arg) < UNAME_FIELD_SIZE + && uname_to_uid (arg, &owner_option))) + { + uintmax_t u; + if (xstrtoumax (arg, 0, 10, &u, "") == LONGINT_OK + && u == (uid_t) u) + owner_option = u; + else + FATAL_ERROR ((0, 0, "%s: %s", quotearg_colon (arg), + _("Invalid owner"))); + } + break; - ignore_zeros_option = true; - break; + case QUOTE_CHARS_OPTION: + for (;*arg; arg++) + set_char_quoting (NULL, *arg, 1); + break; - case 'I': - USAGE_ERROR ((0, 0, - _("Warning: the -I option is not supported;" - " perhaps you meant -j or -T?"))); - break; + case QUOTING_STYLE_OPTION: + tar_set_quoting_style (arg); + break; - case 'j': - set_use_compress_program_option ("bzip2"); - break; + case PAX_OPTION: + args->pax_option = true; + xheader_set_option (arg); + break; - case 'k': - /* Don't replace existing files. */ - old_files_option = KEEP_OLD_FILES; - break; + case POSIX_OPTION: + set_archive_format ("posix"); + break; - case 'K': - starting_file_option = true; - addname (optarg, 0); - break; + case PRESERVE_OPTION: + /* FIXME: What it is good for? */ + same_permissions_option = true; + same_order_option = true; + WARN ((0, 0, _("The --preserve option is deprecated, " + "use --preserve-permissions --preserve-order instead"))); + break; - case 'l': - /* When dumping directories, don't dump files/subdirectories - that are on other filesystems. */ + case RECORD_SIZE_OPTION: + { + uintmax_t u; + if (! (xstrtoumax (arg, 0, 10, &u, "") == LONGINT_OK + && u == (size_t) u)) + USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (arg), + _("Invalid record size"))); + record_size = u; + if (record_size % BLOCKSIZE != 0) + USAGE_ERROR ((0, 0, _("Record size must be a multiple of %d."), + BLOCKSIZE)); + blocking_factor = record_size / BLOCKSIZE; + } + break; - one_file_system_option = true; - break; + case RECURSIVE_UNLINK_OPTION: + recursive_unlink_option = true; + break; - case 'L': - { - uintmax_t u; - if (xstrtoumax (optarg, 0, 10, &u, "") != LONGINT_OK) - USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (optarg), - _("Invalid tape length"))); - tape_length_option = 1024 * (tarlong) u; - multi_volume_option = true; - } - break; + case REMOVE_FILES_OPTION: + remove_files_option = true; + break; - case 'm': - touch_option = true; - break; + case RESTRICT_OPTION: + restrict_option = true; + break; - case 'M': - /* Make multivolume archive: when we can't write any more into - the archive, re-open it, and continue writing. */ + case RMT_COMMAND_OPTION: + rmt_command = arg; + break; - multi_volume_option = true; - break; + case RSH_COMMAND_OPTION: + rsh_command_option = arg; + break; -#if !MSDOS - case 'N': - after_date_option = true; - /* Fall through. */ + case SHOW_DEFAULTS_OPTION: + show_default_settings (stdout); + close_stdout (); + exit (0); - case NEWER_MTIME_OPTION: - if (NEWER_OPTION_INITIALIZED (newer_mtime_option)) - USAGE_ERROR ((0, 0, _("More than one threshold date"))); + case STRIP_COMPONENTS_OPTION: + { + uintmax_t u; + if (! (xstrtoumax (arg, 0, 10, &u, "") == LONGINT_OK + && u == (size_t) u)) + USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (arg), + _("Invalid number of elements"))); + strip_name_components = u; + } + break; - if (FILESYSTEM_PREFIX_LEN (optarg) != 0 - || ISSLASH (*optarg) - || *optarg == '.') - { - struct stat st; - if (deref_stat (dereference_option, optarg, &st) != 0) - { - stat_error (optarg); - USAGE_ERROR ((0, 0, _("Date file not found"))); - } - newer_mtime_option.tv_sec = st.st_mtime; - newer_mtime_option.tv_nsec = TIMESPEC_NS (st.st_mtim); - } - else - { - if (! get_date (&newer_mtime_option, optarg, NULL)) - { - WARN ((0, 0, _("Substituting %s for unknown date format %s"), - tartime (newer_mtime_option.tv_sec), quote (optarg))); - newer_mtime_option.tv_nsec = 0; - } - else - textual_date_option = optarg; - } + case SHOW_OMITTED_DIRS_OPTION: + show_omitted_dirs_option = true; + break; - break; -#endif /* not MSDOS */ + case SHOW_TRANSFORMED_NAMES_OPTION: + show_transformed_names_option = true; + break; - case 'o': - o_option = true; - break; + case SUFFIX_OPTION: + backup_option = true; + args->backup_suffix_string = arg; + break; - case 'O': - to_stdout_option = true; - break; + case TO_COMMAND_OPTION: + if (to_command_option) + USAGE_ERROR ((0, 0, _("Only one --to-command option allowed"))); + to_command_option = arg; + break; - case 'p': - same_permissions_option = true; - break; + case TOTALS_OPTION: + if (arg) + set_stat_signal (arg); + else + totals_option = true; + break; - case 'P': - absolute_names_option = true; - break; + case TRANSFORM_OPTION: + set_transform_expr (arg); + break; - case 'r': - set_subcommand_option (APPEND_SUBCOMMAND); - break; + case 'I': + set_use_compress_program_option (arg); + break; - case 'R': - /* Print block numbers for debugging bad tar archives. */ + case VOLNO_FILE_OPTION: + volno_file_option = arg; + break; - /* It would surely make sense to exchange -B and -R, but it seems - that -B has been used for a long while in Sun tar ans most - BSD-derived systems. This is a consequence of the block/record - terminology confusion. */ + case WILDCARDS_OPTION: + args->wildcards = enable_wildcards; + break; - block_number_option = true; - break; + case WILDCARDS_MATCH_SLASH_OPTION: + args->matching_flags &= ~ FNM_FILE_NAME; + break; - case 's': - /* Names to extr are sorted. */ + case NO_RECURSION_OPTION: + recursion_option = 0; + break; - same_order_option = true; - break; + case NO_SAME_OWNER_OPTION: + same_owner_option = -1; + break; - case 'S': - sparse_option = true; - break; + case NO_SAME_PERMISSIONS_OPTION: + same_permissions_option = -1; + break; - case 't': - set_subcommand_option (LIST_SUBCOMMAND); - verbose_option++; - break; + case RECURSION_OPTION: + recursion_option = FNM_LEADING_DIR; + break; - case 'T': - files_from_option = optarg; - break; + case SAME_OWNER_OPTION: + same_owner_option = 1; + break; - case 'u': - set_subcommand_option (UPDATE_SUBCOMMAND); - break; + case UNQUOTE_OPTION: + unquote_option = true; + break; - case 'U': - old_files_option = UNLINK_FIRST_OLD_FILES; - break; + case NO_UNQUOTE_OPTION: + unquote_option = false; + break; - case UTC_OPTION: - utc_option = true; - break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': - case 'v': - verbose_option++; - break; +#ifdef DEVICE_PREFIX + { + int device = key - '0'; + int density; + static char buf[sizeof DEVICE_PREFIX + 10]; + char *cursor; - case 'V': - volume_label_option = optarg; - break; + if (arg[1]) + argp_error (state, _("Malformed density argument: %s"), quote (arg)); - case 'w': - interactive_option = true; - break; + strcpy (buf, DEVICE_PREFIX); + cursor = buf + strlen (buf); - case 'W': - verify_option = true; - break; +#ifdef DENSITY_LETTER - case 'x': - set_subcommand_option (EXTRACT_SUBCOMMAND); - break; + sprintf (cursor, "%d%c", device, arg[0]); - case 'X': - if (add_exclude_file (add_exclude, excluded, optarg, - exclude_options | recursion_option, '\n') - != 0) - { - int e = errno; - FATAL_ERROR ((0, e, "%s", quotearg_colon (optarg))); - } - break; +#else /* not DENSITY_LETTER */ - case 'y': - USAGE_ERROR ((0, 0, - _("Warning: the -y option is not supported;" - " perhaps you meant -j?"))); - break; - - case 'z': - set_use_compress_program_option ("gzip"); - break; - - case 'Z': - set_use_compress_program_option ("compress"); - break; - - case ANCHORED_OPTION: - exclude_options |= EXCLUDE_ANCHORED; - break; - - case ATIME_PRESERVE_OPTION: - atime_preserve_option = true; - break; - - case CHECKPOINT_OPTION: - checkpoint_option = true; - break; - - case BACKUP_OPTION: - backup_option = true; - if (optarg) - version_control_string = optarg; - break; - - case DELETE_OPTION: - set_subcommand_option (DELETE_SUBCOMMAND); - break; - - case EXCLUDE_OPTION: - add_exclude (excluded, optarg, exclude_options | recursion_option); - break; - - case FORCE_LOCAL_OPTION: - force_local_option = true; - break; - - case FORMAT_OPTION: - set_archive_format (optarg); - break; - - case INDEX_FILE_OPTION: - index_file_name = optarg; - break; - - case IGNORE_CASE_OPTION: - exclude_options |= FNM_CASEFOLD; - break; - - case IGNORE_FAILED_READ_OPTION: - ignore_failed_read_option = true; - break; - - case KEEP_NEWER_FILES_OPTION: - old_files_option = KEEP_NEWER_FILES; - break; - - case GROUP_OPTION: - if (! (strlen (optarg) < GNAME_FIELD_SIZE - && gname_to_gid (optarg, &group_option))) - { - uintmax_t g; - if (xstrtoumax (optarg, 0, 10, &g, "") == LONGINT_OK - && g == (gid_t) g) - group_option = g; - else - FATAL_ERROR ((0, 0, "%s: %s", quotearg_colon (optarg), - _("%s: Invalid group"))); - } - break; - - case MODE_OPTION: - mode_option - = mode_compile (optarg, - MODE_MASK_EQUALS | MODE_MASK_PLUS | MODE_MASK_MINUS); - if (mode_option == MODE_INVALID) - FATAL_ERROR ((0, 0, _("Invalid mode given on option"))); - if (mode_option == MODE_MEMORY_EXHAUSTED) - xalloc_die (); - break; - - case NO_ANCHORED_OPTION: - exclude_options &= ~ EXCLUDE_ANCHORED; - break; - - case NO_IGNORE_CASE_OPTION: - exclude_options &= ~ FNM_CASEFOLD; - break; - - case NO_OVERWRITE_DIR_OPTION: - old_files_option = NO_OVERWRITE_DIR_OLD_FILES; - break; - - case NO_WILDCARDS_OPTION: - exclude_options &= ~ EXCLUDE_WILDCARDS; - break; - - case NO_WILDCARDS_MATCH_SLASH_OPTION: - exclude_options |= FNM_FILE_NAME; - break; - - case NULL_OPTION: - filename_terminator = '\0'; - break; - - case NUMERIC_OWNER_OPTION: - numeric_owner_option = true; - break; - - case OCCURRENCE_OPTION: - if (!optarg) - occurrence_option = 1; - else + switch (arg[0]) { - uintmax_t u; - if (xstrtoumax (optarg, 0, 10, &u, "") == LONGINT_OK) - occurrence_option = u; - else - FATAL_ERROR ((0, 0, "%s: %s", quotearg_colon (optarg), - _("Invalid number"))); - } - break; + case 'l': + device += LOW_DENSITY_NUM; + break; - case OVERWRITE_OPTION: - old_files_option = OVERWRITE_OLD_FILES; - break; + case 'm': + device += MID_DENSITY_NUM; + break; - case OWNER_OPTION: - if (! (strlen (optarg) < UNAME_FIELD_SIZE - && uname_to_uid (optarg, &owner_option))) - { - uintmax_t u; - if (xstrtoumax (optarg, 0, 10, &u, "") == LONGINT_OK - && u == (uid_t) u) - owner_option = u; - else - FATAL_ERROR ((0, 0, "%s: %s", quotearg_colon (optarg), - _("Invalid owner"))); + case 'h': + device += HIGH_DENSITY_NUM; + break; + + default: + argp_error (state, _("Unknown density: `%c'"), arg[0]); } - break; + sprintf (cursor, "%d", device); - case PAX_OPTION: - pax_option++; - xheader_set_option (optarg); - break; +#endif /* not DENSITY_LETTER */ + + if (archive_names == allocated_archive_names) + archive_name_array = x2nrealloc (archive_name_array, + &allocated_archive_names, + sizeof (archive_name_array[0])); + archive_name_array[archive_names++] = xstrdup (buf); + } + break; - case POSIX_OPTION: - set_archive_format ("posix"); - break; +#else /* not DEVICE_PREFIX */ - case PRESERVE_OPTION: - same_permissions_option = true; - same_order_option = true; - break; + argp_error (state, + _("Options `-[0-7][lmh]' not supported by *this* tar")); - case RECORD_SIZE_OPTION: - { - uintmax_t u; - if (! (xstrtoumax (optarg, 0, 10, &u, "") == LONGINT_OK - && u == (size_t) u)) - USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (optarg), - _("Invalid record size"))); - record_size = u; - if (record_size % BLOCKSIZE != 0) - USAGE_ERROR ((0, 0, _("Record size must be a multiple of %d."), - BLOCKSIZE)); - blocking_factor = record_size / BLOCKSIZE; - } - break; - - case RECURSIVE_UNLINK_OPTION: - recursive_unlink_option = true; - break; - - case REMOVE_FILES_OPTION: - remove_files_option = true; - break; - - case RMT_COMMAND_OPTION: - rmt_command_option = optarg; - break; - - case RSH_COMMAND_OPTION: - rsh_command_option = optarg; - break; - - case SHOW_DEFAULTS_OPTION: - printf ("--format=%s -f%s -b%d\n", - archive_format_string (DEFAULT_ARCHIVE_FORMAT), - DEFAULT_ARCHIVE, DEFAULT_BLOCKING); - exit(0); - - case STRIP_PATH_OPTION: - { - uintmax_t u; - if (! (xstrtoumax (optarg, 0, 10, &u, "") == LONGINT_OK - && u == (size_t) u)) - USAGE_ERROR ((0, 0, "%s: %s", quotearg_colon (optarg), - _("Invalid number of elements"))); - strip_path_elements = u; - } - break; +#endif /* not DEVICE_PREFIX */ - case SUFFIX_OPTION: - backup_option = true; - backup_suffix_string = optarg; - break; + case '?': + tar_help (state); + close_stdout (); + exit (0); + + case USAGE_OPTION: + argp_state_help (state, state->out_stream, ARGP_HELP_USAGE); + close_stdout (); + exit (0); + + case VERSION_OPTION: + version_etc (state->out_stream, "tar", PACKAGE_NAME, VERSION, + "John Gilmore", "Jay Fenlason", (char *) NULL); + close_stdout (); + exit (0); + + case HANG_OPTION: + _argp_hang = atoi (arg ? arg : "3600"); + while (_argp_hang-- > 0) + sleep (1); + break; - case TOTALS_OPTION: - totals_option = true; - break; + default: + return ARGP_ERR_UNKNOWN; + } + return 0; +} - case USE_COMPRESS_PROGRAM_OPTION: - set_use_compress_program_option (optarg); - break; +static struct argp argp = { + options, + parse_opt, + N_("[FILE]..."), + doc, + NULL, + NULL, + NULL +}; - case VOLNO_FILE_OPTION: - volno_file_option = optarg; - break; +void +usage (int status) +{ + argp_help (&argp, stderr, ARGP_HELP_SEE, (char*) program_name); + close_stdout (); + exit (status); +} - case WILDCARDS_OPTION: - exclude_options |= EXCLUDE_WILDCARDS; - break; +/* Parse the options for tar. */ - case WILDCARDS_MATCH_SLASH_OPTION: - exclude_options &= ~ FNM_FILE_NAME; - break; +static struct argp_option * +find_argp_option (struct argp_option *o, int letter) +{ + for (; + !(o->name == NULL + && o->key == 0 + && o->arg == 0 + && o->flags == 0 + && o->doc == NULL); o++) + if (o->key == letter) + return o; + return NULL; +} - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': +static void +decode_options (int argc, char **argv) +{ + int idx; + struct tar_args args; -#ifdef DEVICE_PREFIX - { - int device = optchar - '0'; - int density; - static char buf[sizeof DEVICE_PREFIX + 10]; - char *cursor; + /* Set some default option values. */ + args.textual_date = NULL; + args.wildcards = default_wildcards; + args.matching_flags = 0; + args.include_anchored = EXCLUDE_ANCHORED; + args.o_option = false; + args.pax_option = false; + args.backup_suffix_string = getenv ("SIMPLE_BACKUP_SUFFIX"); + args.version_control_string = 0; + args.input_files = false; + args.compress_autodetect = false; + + subcommand_option = UNKNOWN_SUBCOMMAND; + archive_format = DEFAULT_FORMAT; + blocking_factor = DEFAULT_BLOCKING; + record_size = DEFAULT_BLOCKING * BLOCKSIZE; + excluded = new_exclude (); + newer_mtime_option.tv_sec = TYPE_MINIMUM (time_t); + newer_mtime_option.tv_nsec = -1; + recursion_option = FNM_LEADING_DIR; + unquote_option = true; + tar_sparse_major = 1; + tar_sparse_minor = 0; - density = getopt_long (argc, argv, "lmh", 0, 0); - strcpy (buf, DEVICE_PREFIX); - cursor = buf + strlen (buf); + owner_option = -1; + group_option = -1; -#ifdef DENSITY_LETTER + check_device_option = true; + + /* Convert old-style tar call by exploding option element and rearranging + options accordingly. */ - sprintf (cursor, "%d%c", device, density); + if (argc > 1 && argv[1][0] != '-') + { + int new_argc; /* argc value for rearranged arguments */ + char **new_argv; /* argv value for rearranged arguments */ + char *const *in; /* cursor into original argv */ + char **out; /* cursor into rearranged argv */ + const char *letter; /* cursor into old option letters */ + char buffer[3]; /* constructed option buffer */ -#else /* not DENSITY_LETTER */ + /* Initialize a constructed option. */ - switch (density) - { - case 'l': -#ifdef LOW_NUM - device += LOW_NUM; -#endif - break; + buffer[0] = '-'; + buffer[2] = '\0'; - case 'm': -#ifdef MID_NUM - device += MID_NUM; -#else - device += 8; -#endif - break; + /* Allocate a new argument array, and copy program name in it. */ - case 'h': -#ifdef HGH_NUM - device += HGH_NUM; -#else - device += 16; -#endif - break; + new_argc = argc - 1 + strlen (argv[1]); + new_argv = xmalloc ((new_argc + 1) * sizeof (char *)); + in = argv; + out = new_argv; + *out++ = *in++; - default: - usage (TAREXIT_FAILURE); - } - sprintf (cursor, "%d", device); + /* Copy each old letter option as a separate option, and have the + corresponding argument moved next to it. */ -#endif /* not DENSITY_LETTER */ + for (letter = *in++; *letter; letter++) + { + struct argp_option *opt; - if (archive_names == allocated_archive_names) + buffer[1] = *letter; + *out++ = xstrdup (buffer); + opt = find_argp_option (options, *letter); + if (opt && opt->arg) { - allocated_archive_names *= 2; - archive_name_array = - xrealloc (archive_name_array, - sizeof (const char *) * allocated_archive_names); + if (in < argv + argc) + *out++ = *in++; + else + USAGE_ERROR ((0, 0, _("Old option `%c' requires an argument."), + *letter)); } - archive_name_array[archive_names++] = strdup (buf); } - break; -#else /* not DEVICE_PREFIX */ + /* Copy all remaining options. */ - USAGE_ERROR ((0, 0, - _("Options `-[0-7][lmh]' not supported by *this* tar"))); + while (in < argv + argc) + *out++ = *in++; + *out = 0; + + /* Replace the old option list by the new one. */ + + argc = new_argc; + argv = new_argv; + } + + /* Parse all options and non-options as they appear. */ + + prepend_default_options (getenv ("TAR_OPTIONS"), &argc, &argv); + + if (argp_parse (&argp, argc, argv, ARGP_IN_ORDER|ARGP_NO_HELP, + &idx, &args)) + exit (TAREXIT_FAILURE); -#endif /* not DEVICE_PREFIX */ - } /* Special handling for 'o' option: @@ -1270,7 +2177,7 @@ decode_options (int argc, char **argv) The old GNU tar semantics is retained when used with --create option, otherwise UNIX98 semantics is assumed */ - if (o_option) + if (args.o_option) { if (subcommand_option == CREATE_SUBCOMMAND) { @@ -1280,62 +2187,42 @@ decode_options (int argc, char **argv) else { /* UNIX98 compatibility */ - same_owner_option = 1; + same_owner_option = -1; } } /* Handle operands after any "--" argument. */ - for (; optind < argc; optind++) - { - name_add (argv[optind]); - input_files++; - } - - /* Process trivial options. */ - - if (show_version) + for (; idx < argc; idx++) { - printf ("tar (%s) %s\n%s\n", PACKAGE_NAME, PACKAGE_VERSION, - "Copyright (C) 2004 Free Software Foundation, Inc."); - puts (_("\ -This program comes with NO WARRANTY, to the extent permitted by law.\n\ -You may redistribute it under the terms of the GNU General Public License;\n\ -see the file named COPYING for details.")); - - puts (_("Written by John Gilmore and Jay Fenlason.")); - - exit (TAREXIT_SUCCESS); + name_add_name (argv[idx], MAKE_INCL_OPTIONS (&args)); + args.input_files = true; } - if (show_help) - usage (TAREXIT_SUCCESS); + /* Warn about implicit use of the wildcards in command line arguments. + See TODO */ + warn_regex_usage = args.wildcards == default_wildcards; /* Derive option values and check option consistency. */ if (archive_format == DEFAULT_FORMAT) { - if (pax_option) + if (args.pax_option) archive_format = POSIX_FORMAT; else archive_format = DEFAULT_ARCHIVE_FORMAT; } - if (volume_label_option && subcommand_option == CREATE_SUBCOMMAND) - assert_format (FORMAT_MASK (OLDGNU_FORMAT) - | FORMAT_MASK (GNU_FORMAT)); - - - if (incremental_option || multi_volume_option) - assert_format (FORMAT_MASK (OLDGNU_FORMAT) | FORMAT_MASK (GNU_FORMAT)); - - if (sparse_option) + if ((volume_label_option && subcommand_option == CREATE_SUBCOMMAND) + || incremental_option + || multi_volume_option + || sparse_option) assert_format (FORMAT_MASK (OLDGNU_FORMAT) | FORMAT_MASK (GNU_FORMAT) | FORMAT_MASK (POSIX_FORMAT)); if (occurrence_option) { - if (!input_files && !files_from_option) + if (!args.input_files) USAGE_ERROR ((0, 0, _("--occurrence is meaningless without a file list"))); if (subcommand_option != DELETE_SUBCOMMAND @@ -1346,6 +2233,18 @@ see the file named COPYING for details.")); _("--occurrence cannot be used in the requested operation mode"))); } + if (seekable_archive && subcommand_option == DELETE_SUBCOMMAND) + { + /* The current code in delete.c is based on the assumption that + skip_member() reads all data from the archive. So, we should + make sure it won't use seeks. On the other hand, the same code + depends on the ability to backspace a record in the archive, + so setting seekable_archive to false is technically incorrect. + However, it is tested only in skip_member(), so it's not a + problem. */ + seekable_archive = false; + } + if (archive_names == 0) { /* If no archive file name given, try TAPE from the environment, or @@ -1370,22 +2269,27 @@ see the file named COPYING for details.")); if (volume_label_option) { - size_t volume_label_max_len = - (sizeof current_header->header.name - - 1 /* for trailing '\0' */ - - (multi_volume_option - ? (sizeof " Volume " - - 1 /* for null at end of " Volume " */ - + INT_STRLEN_BOUND (int) /* for volume number */ - - 1 /* for sign, as 0 <= volno */) - : 0)); - if (volume_label_max_len < strlen (volume_label_option)) - USAGE_ERROR ((0, 0, - ngettext ("%s: Volume label is too long (limit is %lu byte)", - "%s: Volume label is too long (limit is %lu bytes)", - volume_label_max_len), - quotearg_colon (volume_label_option), - (unsigned long) volume_label_max_len)); + if (archive_format == GNU_FORMAT || archive_format == OLDGNU_FORMAT) + { + size_t volume_label_max_len = + (sizeof current_header->header.name + - 1 /* for trailing '\0' */ + - (multi_volume_option + ? (sizeof " Volume " + - 1 /* for null at end of " Volume " */ + + INT_STRLEN_BOUND (int) /* for volume number */ + - 1 /* for sign, as 0 <= volno */) + : 0)); + if (volume_label_max_len < strlen (volume_label_option)) + USAGE_ERROR ((0, 0, + ngettext ("%s: Volume label is too long (limit is %lu byte)", + "%s: Volume label is too long (limit is %lu bytes)", + volume_label_max_len), + quotearg_colon (volume_label_option), + (unsigned long) volume_label_max_len)); + } + /* else FIXME + Label length in PAX format is limited by the volume size. */ } if (verify_option) @@ -1400,15 +2304,19 @@ see the file named COPYING for details.")); { if (multi_volume_option) USAGE_ERROR ((0, 0, _("Cannot use multi-volume compressed archives"))); - if (subcommand_option == UPDATE_SUBCOMMAND) + if (subcommand_option == UPDATE_SUBCOMMAND + || subcommand_option == APPEND_SUBCOMMAND + || subcommand_option == DELETE_SUBCOMMAND) USAGE_ERROR ((0, 0, _("Cannot update compressed archives"))); + if (subcommand_option == CAT_SUBCOMMAND) + USAGE_ERROR ((0, 0, _("Cannot concatenate compressed archives"))); } /* It is no harm to use --pax-option on non-pax archives in archive reading mode. It may even be useful, since it allows to override file attributes from tar headers. Therefore I allow such usage. --gray */ - if (pax_option + if (args.pax_option && archive_format != POSIX_FORMAT && (subcommand_option != EXTRACT_SUBCOMMAND || subcommand_option != DIFF_SUBCOMMAND @@ -1419,11 +2327,23 @@ see the file named COPYING for details.")); if (recursive_unlink_option) old_files_option = UNLINK_FIRST_OLD_FILES; - if (utc_option) + + if (test_label_option) + { + /* --test-label is silent if the user has specified the label name to + compare against. */ + if (!args.input_files) + verbose_option++; + } + else if (utc_option) verbose_option = 2; - if (!rmt_command_option) - rmt_command_option = DEFAULT_RMT_COMMAND; + if (tape_length_option && tape_length_option < record_size) + USAGE_ERROR ((0, 0, _("Volume length cannot be less than record size"))); + + if (same_order_option && listed_incremental_option) + USAGE_ERROR ((0, 0, _("--preserve-order is not compatible with " + "--listed-incremental"))); /* Forbid using -c with no input files whatsoever. Check that `-f -', explicit or implied, is used correctly. */ @@ -1431,9 +2351,13 @@ see the file named COPYING for details.")); switch (subcommand_option) { case CREATE_SUBCOMMAND: - if (input_files == 0 && !files_from_option) + if (!args.input_files && !files_from_option) USAGE_ERROR ((0, 0, _("Cowardly refusing to create an empty archive"))); + if (args.compress_autodetect && archive_names + && strcmp (archive_name_array[0], "-")) + set_comression_program_by_suffix (archive_name_array[0], + use_compress_program_option); break; case EXTRACT_SUBCOMMAND: @@ -1460,25 +2384,36 @@ see the file named COPYING for details.")); break; } + /* Initialize stdlis */ + if (index_file_name) + { + stdlis = fopen (index_file_name, "w"); + if (! stdlis) + open_error (index_file_name); + } + else + stdlis = to_stdout_option ? stderr : stdout; + archive_name_cursor = archive_name_array; /* Prepare for generating backup names. */ - if (backup_suffix_string) - simple_backup_suffix = xstrdup (backup_suffix_string); + if (args.backup_suffix_string) + simple_backup_suffix = xstrdup (args.backup_suffix_string); if (backup_option) - backup_type = xget_version ("--backup", version_control_string); - - if (verbose_option && textual_date_option) { - /* FIXME: tartime should support nanoseconds, too, so that this - comparison doesn't complain about lost nanoseconds. */ - char const *treated_as = tartime (newer_mtime_option.tv_sec); - if (strcmp (textual_date_option, treated_as) != 0) - WARN ((0, 0, _("Treating date `%s' as %s + %ld nanoseconds"), - textual_date_option, treated_as, newer_mtime_option.tv_nsec)); + backup_type = xget_version ("--backup", args.version_control_string); + /* No backup is needed either if explicitely disabled or if + the extracted files are not being written to disk. */ + if (backup_type == no_backups || EXTRACT_OVER_PIPE) + backup_option = false; } + + checkpoint_finish_compile (); + + if (verbose_option) + report_textual_dates (&args); } @@ -1488,18 +2423,20 @@ see the file named COPYING for details.")); int main (int argc, char **argv) { -#if HAVE_CLOCK_GETTIME - if (clock_gettime (CLOCK_REALTIME, &start_timespec) != 0) -#endif - start_time = time (0); + set_start_time (); program_name = argv[0]; + setlocale (LC_ALL, ""); bindtextdomain (PACKAGE, LOCALEDIR); textdomain (PACKAGE); + exit_failure = TAREXIT_FAILURE; exit_status = TAREXIT_SUCCESS; filename_terminator = '\n'; - set_quoting_style (0, escape_quoting_style); + set_quoting_style (0, DEFAULT_QUOTING_STYLE); + + /* Make sure we have first three descriptors available */ + stdopen (); /* Pre-allocate a few structures. */ @@ -1508,16 +2445,17 @@ main (int argc, char **argv) xmalloc (sizeof (const char *) * allocated_archive_names); archive_names = 0; + obstack_init (&argv_stk); + #ifdef SIGCHLD /* System V fork+wait does not work if SIGCHLD is ignored. */ signal (SIGCHLD, SIG_DFL); #endif - init_names (); - /* Decode options. */ decode_options (argc, argv); + name_init (); /* Main command execution. */ @@ -1543,10 +2481,6 @@ main (int argc, char **argv) case CREATE_SUBCOMMAND: create_archive (); - name_close (); - - if (totals_option) - print_total_written (); break; case EXTRACT_SUBCOMMAND: @@ -1569,8 +2503,11 @@ main (int argc, char **argv) break; } + if (totals_option) + print_total_stats (); + if (check_links_option) - check_links (); + check_links (); if (volno_file_option) closeout_volume_number (); @@ -1580,12 +2517,14 @@ main (int argc, char **argv) free (archive_name_array); name_term (); - if (stdlis != stderr && (ferror (stdlis) || fclose (stdlis) != 0)) - FATAL_ERROR ((0, 0, _("Error in writing to standard output"))); if (exit_status == TAREXIT_FAILURE) - error (0, 0, _("Error exit delayed from previous errors")); - if (ferror (stderr) || fclose (stderr) != 0) + error (0, 0, _("Exiting with failure status due to previous errors")); + + if (stdlis == stdout) + close_stdout (); + else if (ferror (stderr) || fclose (stderr) != 0) exit_status = TAREXIT_FAILURE; + return exit_status; } @@ -1604,5 +2543,21 @@ tar_stat_destroy (struct tar_stat_info *st) free (st->uname); free (st->gname); free (st->sparse_map); + free (st->dumpdir); + xheader_destroy (&st->xhdr); memset (st, 0, sizeof (*st)); } + +/* Format mask for all available formats that support nanosecond + timestamp resolution. */ +#define NS_PRECISION_FORMAT_MASK FORMAT_MASK (POSIX_FORMAT) + +/* Same as timespec_cmp, but ignore nanoseconds if current archive + format does not provide sufficient resolution. */ +int +tar_timespec_cmp (struct timespec a, struct timespec b) +{ + if (!(FORMAT_MASK (current_format) & NS_PRECISION_FORMAT_MASK)) + a.tv_nsec = b.tv_nsec = 0; + return timespec_cmp (a, b); +}