X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Ftar.c;h=b460211d6338ef750268741bbf588ef5e641974a;hb=3fe0f0d7f87777815e100766e0633fa5ec0321e7;hp=3ef89ba931a7513ebb5b0ccdc50b18fce7521457;hpb=ab1964205372c8a1e85fd7576966869a2d50d141;p=chaz%2Ftar diff --git a/src/tar.c b/src/tar.c index 3ef89ba..b460211 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, 2005, 2006 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 @@ -41,10 +41,11 @@ #include #include +#include #include #include -#include #include +#include #include #include #include @@ -253,7 +254,12 @@ enum DELAY_DIRECTORY_RESTORE_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, FORCE_LOCAL_OPTION, GROUP_OPTION, HANG_OPTION, @@ -301,6 +307,7 @@ enum SHOW_DEFAULTS_OPTION, SHOW_OMITTED_DIRS_OPTION, SHOW_TRANSFORMED_NAMES_OPTION, + SPARSE_VERSION_OPTION, STRIP_COMPONENTS_OPTION, SUFFIX_OPTION, TEST_LABEL_OPTION, @@ -319,13 +326,16 @@ enum const char *argp_program_version = "tar (" PACKAGE_NAME ") " VERSION; const char *argp_program_bug_address = "<" PACKAGE_BUGREPORT ">"; -static char doc[] = N_("GNU `tar' saves many files together into a single tape or disk archive, and can restore individual files from the archive.\n\ +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\ 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\ -\vThe backup suffix is `~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.\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\ @@ -382,6 +392,8 @@ static struct argp_option options[] = { {"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, @@ -400,7 +412,7 @@ static struct argp_option options[] = { #define GRID 30 {NULL, 0, NULL, 0, - N_("Overwrite control:\n"), GRID+1 }, + N_("Overwrite control:"), GRID }, {"verify", 'W', 0, 0, N_("attempt to verify the archive after writing it"), GRID+1 }, @@ -482,7 +494,7 @@ static struct argp_option options[] = { #define GRID 60 {NULL, 0, NULL, 0, - N_("Device selection and switching:\n"), GRID+1 }, + N_("Device selection and switching:"), GRID }, {"file", 'f', N_("ARCHIVE"), 0, N_("use archive file or device ARCHIVE"), GRID+1 }, @@ -521,7 +533,7 @@ static struct argp_option options[] = { #define GRID 70 {NULL, 0, NULL, 0, - N_("Device blocking:"), GRID+1 }, + N_("Device blocking:"), GRID }, {"blocking-factor", 'b', N_("BLOCKS"), 0, N_("BLOCKS x 512 bytes per record"), GRID+1 }, @@ -596,7 +608,20 @@ static struct argp_option options[] = { {"exclude-from", 'X', N_("FILE"), 0, N_("exclude patterns listed in FILE"), GRID+1 }, {"exclude-caches", EXCLUDE_CACHES_OPTION, 0, 0, - N_("exclude directories containing a cache tag"), GRID+1 }, + 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 }, {"no-recursion", NO_RECURSION_OPTION, 0, 0, N_("avoid descending automatically in directories"), GRID+1 }, {"one-file-system", ONE_FILE_SYSTEM_OPTION, 0, 0, @@ -627,10 +652,10 @@ static struct argp_option options[] = { 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 }, + N_("use sed replace EXPRESSION to transform file names"), GRID+1 }, #undef GRID -#define GRID 95 +#define GRID 95 {NULL, 0, NULL, 0, N_("File name matching options (affect both exclude and include patterns):"), GRID }, @@ -651,7 +676,7 @@ static struct argp_option options[] = { {"wildcards-match-slash", WILDCARDS_MATCH_SLASH_OPTION, 0, 0, N_("wildcards match `/' (default for exclusion)"), GRID+1 }, #undef GRID - + #define GRID 100 {NULL, 0, NULL, 0, N_("Informative output:"), GRID }, @@ -771,7 +796,7 @@ struct tar_args /* Variables used during option parsing */ | (args)->matching_flags \ | recursion_option) -#ifdef REMOTE_SHELL +#ifdef REMOTE_SHELL # define DECL_SHOW_DEFAULT_SETTINGS(stream, printer) \ { \ printer (stream, \ @@ -799,7 +824,7 @@ struct tar_args /* Variables used during option parsing */ 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) @@ -869,7 +894,7 @@ set_stat_signal (const char *name) { "QUIT", SIGQUIT } }; struct sigtab *p; - + for (p = sigtab; p < sigtab + sizeof (sigtab) / sizeof (sigtab[0]); p++) if (strcmp (p->name, name) == 0) { @@ -947,7 +972,8 @@ 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_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 FILENAME_TERMINATOR and put them @@ -965,13 +991,15 @@ read_name_from_file (FILE *fp, struct obstack *stk) { /* We have read a zero separator. The file possibly is zero-separated */ - /* FATAL_ERROR((0, 0, N_("file name contains null character"))); */ return file_list_zero; } obstack_1grow (stk, c); counter++; } + if (counter == 0 && c != EOF) + return file_list_skip; + obstack_1grow (stk, 0); return (counter == 0 && c == EOF) ? file_list_end : file_list_success; @@ -1052,31 +1080,42 @@ update_argv (const char *filename, struct argp_state *state) open_fatal (filename); } - while ((read_state = read_name_from_file (fp, &argv_stk)) == file_list_success) - count++; - - if (read_state == file_list_zero) + while ((read_state = read_name_from_file (fp, &argv_stk)) != file_list_end) { - size_t size; + switch (read_state) + { + case file_list_success: + count++; + break; - WARN ((0, 0, N_("%s: file name read contains nul character"), - quotearg_colon (filename))); + case file_list_end: /* won't happen, just to pacify gcc */ + break; - /* 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 - obstack_1grow (&argv_stk, '\n'); - obstack_1grow (&argv_stk, 0); - count = 1; - - /* Read rest of files using new filename terminator */ - filename_terminator = 0; - while (read_name_from_file (fp, &argv_stk) == file_list_success) - count++; + 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 + obstack_1grow (&argv_stk, '\n'); + obstack_1grow (&argv_stk, 0); + count = 1; + /* Read rest of files using new filename terminator */ + filename_terminator = 0; + break; + } + + case file_list_skip: + break; + } } if (!is_stdin) @@ -1119,11 +1158,11 @@ tar_help (struct argp_state *state) 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'); @@ -1139,11 +1178,11 @@ parse_opt (int key, char *arg, struct argp_state *state) 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 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); @@ -1283,7 +1322,7 @@ parse_opt (int key, char *arg, struct argp_state *state) get_date_or_file (args, "--mtime", arg, &mtime_option); set_mtime_option = true; break; - + case 'n': seekable_archive = true; break; @@ -1324,7 +1363,7 @@ parse_opt (int key, char *arg, struct argp_state *state) /* 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 ans most + 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. */ @@ -1332,7 +1371,7 @@ parse_opt (int key, char *arg, struct argp_state *state) break; case 's': - /* Names to extr are sorted. */ + /* Names to extract are sorted. */ same_order_option = true; break; @@ -1341,6 +1380,22 @@ parse_opt (int key, char *arg, struct argp_state *state) 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++; @@ -1467,7 +1522,30 @@ parse_opt (int key, char *arg, struct argp_state *state) break; case EXCLUDE_CACHES_OPTION: - exclude_caches_option = true; + 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; + + case EXCLUDE_CACHES_ALL_OPTION: + add_exclusion_tag ("CACHEDIR.TAG", exclusion_tag_all, + cachedir_file_p); + break; + + case EXCLUDE_TAG_OPTION: + add_exclusion_tag (arg, exclusion_tag_contents, NULL); + break; + + case EXCLUDE_TAG_UNDER_OPTION: + add_exclusion_tag (arg, exclusion_tag_under, NULL); + break; + + case EXCLUDE_TAG_ALL_OPTION: + add_exclusion_tag (arg, exclusion_tag_all, NULL); break; case FORCE_LOCAL_OPTION: @@ -1698,7 +1776,7 @@ parse_opt (int key, char *arg, struct argp_state *state) case TRANSFORM_OPTION: set_transform_expr (arg); break; - + case USE_COMPRESS_PROGRAM_OPTION: set_use_compress_program_option (arg); break; @@ -1895,6 +1973,8 @@ decode_options (int argc, char **argv) newer_mtime_option.tv_nsec = -1; recursion_option = FNM_LEADING_DIR; unquote_option = true; + tar_sparse_major = 1; + tar_sparse_minor = 0; owner_option = -1; group_option = -1; @@ -1998,7 +2078,7 @@ decode_options (int argc, char **argv) /* 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) @@ -2017,13 +2097,6 @@ decode_options (int argc, char **argv) | FORMAT_MASK (GNU_FORMAT) | FORMAT_MASK (POSIX_FORMAT)); - if (multi_volume_option - && archive_format == POSIX_FORMAT - && subcommand_option == CREATE_SUBCOMMAND - && !tape_length_option) - USAGE_ERROR ((0, 0, - _("creating multi-volume archives in posix format requires using --tape-length (-L) option"))); - if (occurrence_option) { if (!args.input_files) @@ -2177,6 +2250,16 @@ decode_options (int argc, char **argv) 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. */ @@ -2236,6 +2319,7 @@ main (int argc, char **argv) /* Decode options. */ decode_options (argc, argv); + name_init (); /* Main command execution. */ @@ -2297,13 +2381,14 @@ main (int argc, char **argv) free (archive_name_array); name_term (); - if (stdlis == stdout) - close_stdout (); - if (exit_status == TAREXIT_FAILURE) error (0, 0, _("Error exit delayed from previous errors")); - if (ferror (stderr) || fclose (stderr) != 0) + + if (stdlis == stdout) + close_stdout (); + else if (ferror (stderr) || fclose (stderr) != 0) exit_status = TAREXIT_FAILURE; + return exit_status; } @@ -2323,6 +2408,7 @@ tar_stat_destroy (struct tar_stat_info *st) free (st->gname); free (st->sparse_map); free (st->dumpdir); + xheader_destroy (&st->xhdr); memset (st, 0, sizeof (*st)); }