X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Flist.c;h=2d05873d846b327a3e91aa4e6452ebf9865d5b39;hb=84378fa99ae3ce256fea9eb25d8ae999d1c91fdf;hp=0657fcff036492fd4f9367de5303e9e2b0dccc12;hpb=0fd49f51a052c54a86f9dcc12d9820c897262fa8;p=chaz%2Ftar diff --git a/src/list.c b/src/list.c index 0657fcf..2d05873 100644 --- a/src/list.c +++ b/src/list.c @@ -1,7 +1,7 @@ /* List a tar archive, with support routines for reading a tar archive. Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1998, 1999, 2000, - 2001, 2003, 2004, 2005 Free Software Foundation, Inc. + 2001, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. Written by John Gilmore, on 1985-08-26. @@ -17,12 +17,10 @@ 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. */ - -/* Define to non-zero for forcing old ctime format instead of ISO format. */ -#undef USE_OLD_CTIME + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include +#include #include #include "common.h" @@ -68,6 +66,7 @@ read_and (void (*do_something) (void)) { enum read_header status = HEADER_STILL_UNREAD; enum read_header prev_status; + struct timespec mtime; base64_init (); name_gather (); @@ -95,14 +94,13 @@ read_and (void (*do_something) (void)) || (NEWER_OPTION_INITIALIZED (newer_mtime_option) /* FIXME: We get mtime now, and again later; this causes duplicate diagnostics if header.mtime is bogus. */ - && ((current_stat_info.stat.st_mtime + && ((mtime.tv_sec = TIME_FROM_HEADER (current_header->header.mtime)), -#ifdef ST_MTIM_NSEC /* FIXME: Grab fractional time stamps from extended header. */ - current_stat_info.stat.st_mtim.ST_MTIM_NSEC = 0, -#endif - OLDER_STAT_TIME (current_stat_info.stat, m))) + mtime.tv_nsec = 0, + current_stat_info.mtime = mtime, + OLDER_TAR_STAT_TIME (current_stat_info, m))) || excluded_name (current_stat_info.file_name)) { switch (current_header->header.typeflag) @@ -207,63 +205,24 @@ read_and (void (*do_something) (void)) void list_archive (void) { + off_t block_ordinal = current_block_ordinal (); /* Print the header block. */ decode_header (current_header, ¤t_stat_info, ¤t_format, 0); if (verbose_option) - print_header (¤t_stat_info, -1); + print_header (¤t_stat_info, block_ordinal); - if (incremental_option && current_header->header.typeflag == GNUTYPE_DUMPDIR) + if (incremental_option) { - off_t size; - size_t written, check; - union block *data_block; - - set_next_block_after (current_header); - if (multi_volume_option) + if (verbose_option > 2) { - assign_string (&save_name, current_stat_info.file_name); - save_totsize = current_stat_info.stat.st_size; + if (is_dumpdir (¤t_stat_info)) + list_dumpdir (current_stat_info.dumpdir, + dumpdir_size (current_stat_info.dumpdir)); } - for (size = current_stat_info.stat.st_size; size > 0; size -= written) - { - if (multi_volume_option) - save_sizeleft = size; - data_block = find_next_block (); - if (!data_block) - { - ERROR ((0, 0, _("Unexpected EOF in archive"))); - break; /* FIXME: What happens, then? */ - } - written = available_space_after (data_block); - if (written > size) - written = size; - errno = 0; - check = fwrite (data_block->buffer, sizeof (char), written, stdlis); - set_next_block_after ((union block *) - (data_block->buffer + written - 1)); - if (check != written) - { - write_error_details (current_stat_info.file_name, check, written); - skip_file (size - written); - break; - } - } - if (multi_volume_option) - assign_string (&save_name, 0); - fputc ('\n', stdlis); - fflush (stdlis); - return; - } - if (multi_volume_option) - assign_string (&save_name, current_stat_info.file_name); - skip_member (); - - if (multi_volume_option) - assign_string (&save_name, 0); } /* Check header checksum */ @@ -369,7 +328,8 @@ read_header (bool raw_extended_headers) if (header->header.typeflag == GNUTYPE_LONGNAME || header->header.typeflag == GNUTYPE_LONGLINK || header->header.typeflag == XHDTYPE - || header->header.typeflag == XGLTYPE) + || header->header.typeflag == XGLTYPE + || header->header.typeflag == SOLARIS_XHDTYPE) { if (raw_extended_headers) return HEADER_SUCCESS_EXTENDED; @@ -427,12 +387,14 @@ read_header (bool raw_extended_headers) *bp = '\0'; } - else if (header->header.typeflag == XHDTYPE) + else if (header->header.typeflag == XHDTYPE + || header->header.typeflag == SOLARIS_XHDTYPE) xheader_read (header, OFF_FROM_HEADER (header->header.size)); else if (header->header.typeflag == XGLTYPE) { xheader_read (header, OFF_FROM_HEADER (header->header.size)); xheader_decode_global (); + xheader_destroy (&extended_header); } /* Loop! */ @@ -541,22 +503,27 @@ decode_header (union block *header, struct tar_stat_info *stat_info, *format_pointer = format; stat_info->stat.st_mode = MODE_FROM_HEADER (header->header.mode); - stat_info->stat.st_mtime = TIME_FROM_HEADER (header->header.mtime); + stat_info->mtime.tv_sec = TIME_FROM_HEADER (header->header.mtime); + stat_info->mtime.tv_nsec = 0; assign_string (&stat_info->uname, header->header.uname[0] ? header->header.uname : NULL); assign_string (&stat_info->gname, header->header.gname[0] ? header->header.gname : NULL); - stat_info->devmajor = MAJOR_FROM_HEADER (header->header.devmajor); - stat_info->devminor = MINOR_FROM_HEADER (header->header.devminor); - - stat_info->stat.st_atime = start_time; - stat_info->stat.st_ctime = start_time; if (format == OLDGNU_FORMAT && incremental_option) { - stat_info->stat.st_atime = TIME_FROM_HEADER (header->oldgnu_header.atime); - stat_info->stat.st_ctime = TIME_FROM_HEADER (header->oldgnu_header.ctime); + stat_info->atime.tv_sec = TIME_FROM_HEADER (header->oldgnu_header.atime); + stat_info->ctime.tv_sec = TIME_FROM_HEADER (header->oldgnu_header.ctime); + stat_info->atime.tv_nsec = stat_info->ctime.tv_nsec = 0; + } + else if (format == STAR_FORMAT) + { + stat_info->atime.tv_sec = TIME_FROM_HEADER (header->star_header.atime); + stat_info->ctime.tv_sec = TIME_FROM_HEADER (header->star_header.ctime); + stat_info->atime.tv_nsec = stat_info->ctime.tv_nsec = 0; } + else + stat_info->atime = stat_info->ctime = start_time; if (format == V7_FORMAT) { @@ -566,13 +533,6 @@ decode_header (union block *header, struct tar_stat_info *stat_info, } else { - - if (format == STAR_FORMAT) - { - stat_info->stat.st_atime = TIME_FROM_HEADER (header->star_header.atime); - stat_info->stat.st_ctime = TIME_FROM_HEADER (header->star_header.ctime); - } - if (do_user_group) { /* FIXME: Decide if this should somewhat depend on -p. */ @@ -592,8 +552,9 @@ decode_header (union block *header, struct tar_stat_info *stat_info, { case BLKTYPE: case CHRTYPE: - stat_info->stat.st_rdev = makedev (stat_info->devmajor, - stat_info->devminor); + stat_info->stat.st_rdev = + makedev (MAJOR_FROM_HEADER (header->header.devmajor), + MINOR_FROM_HEADER (header->header.devminor)); break; default: @@ -610,7 +571,14 @@ decode_header (union block *header, struct tar_stat_info *stat_info, stat_info->is_sparse = true; } else - stat_info->is_sparse = false; + { + stat_info->is_sparse = false; + if (((current_format == GNU_FORMAT + || current_format == OLDGNU_FORMAT) + && current_header->header.typeflag == GNUTYPE_DUMPDIR) + || stat_info->dumpdir) + stat_info->is_dumpdir = true; + } } /* Convert buffer at WHERE0 of size DIGS from external format to @@ -918,61 +886,61 @@ uintmax_from_header (const char *p, size_t s) } -/* Format O as a null-terminated decimal string into BUF _backwards_; - return pointer to start of result. */ -char * -stringify_uintmax_t_backwards (uintmax_t o, char *buf) -{ - *--buf = '\0'; - do - *--buf = '0' + (int) (o % 10); - while ((o /= 10) != 0); - return buf; -} - /* Return a printable representation of T. The result points to static storage that can be reused in the next call to this - function, to ctime, or to asctime. */ + function, to ctime, or to asctime. If FULL_TIME, then output the + time stamp to its full resolution; otherwise, just output it to + 1-minute resolution. */ char const * -tartime (time_t t) +tartime (struct timespec t, bool full_time) { + enum { fraclen = sizeof ".FFFFFFFFF" - 1 }; static char buffer[max (UINTMAX_STRSIZE_BOUND + 1, - INT_STRLEN_BOUND (int) + 16)]; + INT_STRLEN_BOUND (int) + 16) + + fraclen]; + struct tm *tm; + time_t s = t.tv_sec; + int ns = t.tv_nsec; + bool negative = s < 0; char *p; -#if USE_OLD_CTIME - p = ctime (&t); - if (p) + if (negative && ns != 0) { - char const *time_stamp = p + 4; - for (p += 16; p[3] != '\n'; p++) - p[0] = p[3]; - p[0] = '\0'; - return time_stamp; + s++; + ns = 1000000000 - ns; } -#else - /* Use ISO 8610 format. See: - http://www.cl.cam.ac.uk/~mgk25/iso-time.html */ - struct tm *tm = utc_option ? gmtime (&t) : localtime (&t); + + tm = utc_option ? gmtime (&s) : localtime (&s); if (tm) { - sprintf (buffer, "%04ld-%02d-%02d %02d:%02d:%02d", - tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday, - tm->tm_hour, tm->tm_min, tm->tm_sec); + if (full_time) + { + sprintf (buffer, "%04ld-%02d-%02d %02d:%02d:%02d", + tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday, + tm->tm_hour, tm->tm_min, tm->tm_sec); + code_ns_fraction (ns, buffer + strlen (buffer)); + } + else + sprintf (buffer, "%04ld-%02d-%02d %02d:%02d", + tm->tm_year + 1900L, tm->tm_mon + 1, tm->tm_mday, + tm->tm_hour, tm->tm_min); return buffer; } -#endif /* The time stamp cannot be broken down, most likely because it is out of range. Convert it as an integer, right-adjusted in a field with the same width as the usual - 19-byte 4-year ISO time format. */ - p = stringify_uintmax_t_backwards (t < 0 ? - (uintmax_t) t : (uintmax_t) t, - buffer + sizeof buffer); - if (t < 0) + 4-year ISO time format. */ + p = umaxtostr (negative ? - (uintmax_t) s : s, + buffer + sizeof buffer - UINTMAX_STRSIZE_BOUND - fraclen); + if (negative) *--p = '-'; - while (buffer + sizeof buffer - 19 - 1 < p) + while ((buffer + sizeof buffer - sizeof "YYYY-MM-DD HH:MM" + + (full_time ? sizeof ":SS.FFFFFFFFF" - 1 : 0)) + < p) *--p = ' '; + if (full_time) + code_ns_fraction (ns, buffer + sizeof buffer - 1 - fraclen); return p; } @@ -989,23 +957,24 @@ tartime (time_t t) /* FIXME: Note that print_header uses the globals HEAD, HSTAT, and HEAD_STANDARD, which must be set up in advance. Not very clean.. */ -/* UGSWIDTH starts with 18, so with user and group names <= 8 chars, the - columns never shift during the listing. */ -#define UGSWIDTH 18 -static int ugswidth = UGSWIDTH; /* maximum width encountered so far */ +/* Width of "user/group size", with initial value chosen + heuristically. This grows as needed, though this may cause some + stairstepping in the output. Make it too small and the output will + almost always look ragged. Make it too large and the output will + be spaced out too far. */ +static int ugswidth = 19; -/* DATEWIDTH is the number of columns taken by the date and time fields. */ -#if USE_OLD_CDATE -# define DATEWIDTH 19 -#else -# define DATEWIDTH 18 -#endif +/* Width of printed time stamps. It grows if longer time stamps are + found (typically, those with nanosecond resolution). Like + USGWIDTH, some stairstepping may occur. */ +static int datewidth = sizeof "YYYY-MM-DD HH:MM" - 1; void print_header (struct tar_stat_info *st, off_t block_ordinal) { char modes[11]; char const *time_stamp; + int time_stamp_len; char *temp_name = st->orig_file_name ? st->orig_file_name : st->file_name; /* These hold formatted ints. */ @@ -1015,6 +984,28 @@ print_header (struct tar_stat_info *st, off_t block_ordinal) /* holds formatted size or major,minor */ char uintbuf[UINTMAX_STRSIZE_BOUND]; int pad; + int sizelen; + + if (test_label_option && current_header->header.typeflag != GNUTYPE_VOLHDR) + return; + + if (show_stored_names_option) + { + switch (subcommand_option) + { + case CAT_SUBCOMMAND: + case UPDATE_SUBCOMMAND: + case APPEND_SUBCOMMAND: + case CREATE_SUBCOMMAND: + temp_name = st->file_name ? st->file_name : st->orig_file_name; + break; + + default: + temp_name = st->orig_file_name ? st->orig_file_name : st->file_name; + } + } + else + temp_name = st->orig_file_name ? st->orig_file_name : st->file_name; if (block_number_option) { @@ -1090,11 +1081,14 @@ print_header (struct tar_stat_info *st, off_t block_ordinal) break; } - decode_mode (st->stat.st_mode, modes + 1); + pax_decode_mode (st->stat.st_mode, modes + 1); /* Time stamp. */ - time_stamp = tartime (st->stat.st_mtime); + time_stamp = tartime (st->mtime, false); + time_stamp_len = strlen (time_stamp); + if (datewidth < time_stamp_len) + datewidth = time_stamp_len; /* User and group names. */ @@ -1169,12 +1163,14 @@ print_header (struct tar_stat_info *st, off_t block_ordinal) /* Figure out padding and print the whole line. */ - pad = strlen (user) + strlen (group) + strlen (size) + 1; + sizelen = strlen (size); + pad = strlen (user) + 1 + strlen (group) + 1 + sizelen; if (pad > ugswidth) ugswidth = pad; - fprintf (stdlis, "%s %s/%s %*s%s %s", - modes, user, group, ugswidth - pad, "", size, time_stamp); + fprintf (stdlis, "%s %s/%s %*s %-*s", + modes, user, group, ugswidth - pad + sizelen, size, + datewidth, time_stamp); fprintf (stdlis, " %s", quotearg (temp_name)); @@ -1249,7 +1245,7 @@ print_for_mkdir (char *dirname, int length, mode_t mode) /* File type and modes. */ modes[0] = 'd'; - decode_mode (mode, modes + 1); + pax_decode_mode (mode, modes + 1); if (block_number_option) { @@ -1258,7 +1254,7 @@ print_for_mkdir (char *dirname, int length, mode_t mode) STRINGIFY_BIGINT (current_block_ordinal (), buf)); } - fprintf (stdlis, "%s %*s %.*s\n", modes, ugswidth + DATEWIDTH, + fprintf (stdlis, "%s %*s %.*s\n", modes, ugswidth + 1 + datewidth, _("Creating directory:"), length, quotearg (dirname)); } } @@ -1269,25 +1265,19 @@ skip_file (off_t size) { union block *x; - if (multi_volume_option) - { - save_totsize = size; - save_sizeleft = size; - } + /* FIXME: Make sure mv_begin is always called before it */ if (seekable_archive) { off_t nblk = seek_archive (size); if (nblk >= 0) - { - size -= nblk * BLOCKSIZE; - if (multi_volume_option) /* Argh.. */ - save_sizeleft -= nblk * BLOCKSIZE; - } + size -= nblk * BLOCKSIZE; else seekable_archive = false; } + mv_size_left (size); + while (size > 0) { x = find_next_block (); @@ -1296,8 +1286,7 @@ skip_file (off_t size) set_next_block_after (x); size -= BLOCKSIZE; - if (multi_volume_option) - save_sizeleft -= BLOCKSIZE; + mv_size_left (size); } } @@ -1306,13 +1295,18 @@ skip_file (off_t size) void skip_member (void) { - char save_typeflag = current_header->header.typeflag; - set_next_block_after (current_header); + if (!current_stat_info.skipped) + { + char save_typeflag = current_header->header.typeflag; + set_next_block_after (current_header); + + mv_begin (¤t_stat_info); - assign_string (&save_name, current_stat_info.file_name); + if (current_stat_info.is_sparse) + sparse_skip_file (¤t_stat_info); + else if (save_typeflag != DIRTYPE) + skip_file (current_stat_info.stat.st_size); - if (current_stat_info.is_sparse) - sparse_skip_file (¤t_stat_info); - else if (save_typeflag != DIRTYPE) - skip_file (current_stat_info.stat.st_size); + mv_end (); + } }