X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=src%2Flist.c;h=ddf044df0e1f1621b8669aceacbf42df43b2c297;hb=d659cbaccdc1f3279c49107cf15f15a639738529;hp=f3c706b2774f9aa13c35b17ff7aa0932fa77de23;hpb=1e2e868af584e5e922948424545f73dc54fb634a;p=chaz%2Ftar diff --git a/src/list.c b/src/list.c index f3c706b..ddf044d 100644 --- a/src/list.c +++ b/src/list.c @@ -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" @@ -37,7 +35,7 @@ size_t recent_long_name_blocks; /* number of blocks in recent_long_name */ size_t recent_long_link_blocks; /* likewise, for long link */ static uintmax_t from_header (const char *, size_t, const char *, - uintmax_t, uintmax_t, bool); + uintmax_t, uintmax_t, bool, bool); /* Base 64 digits; see Internet RFC 2045 Table 1. */ static char const base_64_digits[64] = @@ -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 (); @@ -95,13 +94,12 @@ 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 + mtime.tv_nsec = 0, + set_stat_mtime (¤t_stat_info.stat, mtime), OLDER_STAT_TIME (current_stat_info.stat, m))) || excluded_name (current_stat_info.file_name)) { @@ -222,7 +220,7 @@ list_archive (void) set_next_block_after (current_header); if (multi_volume_option) { - assign_string (&save_name, current_stat_info.file_name); + assign_string (&save_name, current_stat_info.orig_file_name); save_totsize = current_stat_info.stat.st_size; } for (size = current_stat_info.stat.st_size; size > 0; size -= written) @@ -258,7 +256,7 @@ list_archive (void) } if (multi_volume_option) - assign_string (&save_name, current_stat_info.file_name); + assign_string (&save_name, current_stat_info.orig_file_name); skip_member (); @@ -285,7 +283,7 @@ tar_checksum (union block *header, bool silent) int recorded_sum; uintmax_t parsed_sum; char *p; - + p = header->buffer; for (i = sizeof *header; i-- != 0;) { @@ -309,12 +307,12 @@ tar_checksum (union block *header, bool silent) parsed_sum = from_header (header->header.chksum, sizeof header->header.chksum, 0, (uintmax_t) 0, - (uintmax_t) TYPE_MAXIMUM (int), silent); + (uintmax_t) TYPE_MAXIMUM (int), true, silent); if (parsed_sum == (uintmax_t) -1) return HEADER_FAILURE; recorded_sum = parsed_sum; - + if (unsigned_sum != recorded_sum && signed_sum != recorded_sum) return HEADER_FAILURE; @@ -337,7 +335,6 @@ tar_checksum (union block *header, bool silent) enum read_header read_header (bool raw_extended_headers) { - char *p; union block *header; union block *header_copy; char *bp; @@ -351,7 +348,7 @@ read_header (bool raw_extended_headers) while (1) { enum read_header status; - + header = find_next_block (); current_header = header; if (!header) @@ -370,7 +367,8 @@ 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; @@ -382,7 +380,7 @@ read_header (bool raw_extended_headers) size = name_size + BLOCKSIZE; if (n) size += BLOCKSIZE - n; - + if (name_size != current_stat_info.stat.st_size || size < name_size) xalloc_die (); @@ -428,7 +426,8 @@ 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) { @@ -466,11 +465,6 @@ read_header (bool raw_extended_headers) np[sizeof h->prefix] = '\0'; np += strlen (np); *np++ = '/'; - - /* Prevent later references to current_header from - mistakenly treating this as an old GNU header. - This assignment invalidates h->prefix. */ - current_header->oldgnu_header.isextended = 0; } memcpy (np, h->name, sizeof h->name); np[sizeof h->name] = '\0'; @@ -526,6 +520,9 @@ decode_header (union block *header, struct tar_stat_info *stat_info, enum archive_format *format_pointer, int do_user_group) { enum archive_format format; + struct timespec atime; + struct timespec ctime; + struct timespec mtime; if (strcmp (header->header.magic, TMAGIC) == 0) { @@ -547,22 +544,31 @@ 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); + mtime.tv_sec = TIME_FROM_HEADER (header->header.mtime); + mtime.tv_nsec = 0; + set_stat_mtime (&stat_info->stat, mtime); 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); + atime.tv_sec = TIME_FROM_HEADER (header->oldgnu_header.atime); + ctime.tv_sec = TIME_FROM_HEADER (header->oldgnu_header.ctime); + atime.tv_nsec = ctime.tv_nsec = 0; } + else if (format == STAR_FORMAT) + { + atime.tv_sec = TIME_FROM_HEADER (header->star_header.atime); + ctime.tv_sec = TIME_FROM_HEADER (header->star_header.ctime); + atime.tv_nsec = ctime.tv_nsec = 0; + } + else + atime = ctime = start_time; + + set_stat_atime (&stat_info->stat, atime); + set_stat_ctime (&stat_info->stat, ctime); if (format == V7_FORMAT) { @@ -572,13 +578,6 @@ 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. */ @@ -598,8 +597,9 @@ 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: @@ -620,14 +620,15 @@ decode_header (union block *header, struct tar_stat_info *stat_info, } /* Convert buffer at WHERE0 of size DIGS from external format to - uintmax_t. The data is of type TYPE. The buffer must represent a - value in the range -MINUS_MINVAL through MAXVAL. DIGS must be - positive. SILENT=true inhibits printing diagnostic messages. - Return -1 on error, diagnosing the error if TYPE is - nonzero. */ + uintmax_t. DIGS must be positive. If TYPE is nonnull, the data + are of type TYPE. The buffer must represent a value in the range + -MINUS_MINVAL through MAXVAL. If OCTAL_ONLY, allow only octal + numbers instead of the other GNU extensions. Return -1 on error, + diagnosing the error if TYPE is nonnull and if !SILENT. */ static uintmax_t from_header (char const *where0, size_t digs, char const *type, - uintmax_t minus_minval, uintmax_t maxval, bool silent) + uintmax_t minus_minval, uintmax_t maxval, + bool octal_only, bool silent) { uintmax_t value; char const *where = where0; @@ -717,19 +718,24 @@ from_header (char const *where0, size_t digs, char const *type, return -1; } } + else if (octal_only) + { + /* Suppress the following extensions. */ + } else if (*where == '-' || *where == '+') { /* Parse base-64 output produced only by tar test versions 1.13.6 (1999-08-11) through 1.13.11 (1999-08-23). Support for this will be withdrawn in future releases. */ int dig; - static int warned_once; - if (! warned_once) + if (!silent) { - warned_once = 1; - if (!silent) - WARN ((0, 0, - _("Archive contains obsolescent base-64 headers"))); + static bool warned_once; + if (! warned_once) + { + warned_once = true; + WARN ((0, 0, _("Archive contains obsolescent base-64 headers"))); + } } negative = *where++ == '-'; while (where != lim @@ -838,7 +844,7 @@ gid_from_header (const char *p, size_t s) return from_header (p, s, "gid_t", - (uintmax_t) TYPE_MINIMUM (gid_t), (uintmax_t) TYPE_MAXIMUM (gid_t), - false); + false, false); } major_t @@ -846,7 +852,7 @@ major_from_header (const char *p, size_t s) { return from_header (p, s, "major_t", - (uintmax_t) TYPE_MINIMUM (major_t), - (uintmax_t) TYPE_MAXIMUM (major_t), false); + (uintmax_t) TYPE_MAXIMUM (major_t), false, false); } minor_t @@ -854,7 +860,7 @@ minor_from_header (const char *p, size_t s) { return from_header (p, s, "minor_t", - (uintmax_t) TYPE_MINIMUM (minor_t), - (uintmax_t) TYPE_MAXIMUM (minor_t), false); + (uintmax_t) TYPE_MAXIMUM (minor_t), false, false); } mode_t @@ -863,7 +869,7 @@ mode_from_header (const char *p, size_t s) /* Do not complain about unrecognized mode bits. */ unsigned u = from_header (p, s, "mode_t", - (uintmax_t) TYPE_MINIMUM (mode_t), - TYPE_MAXIMUM (uintmax_t), false); + TYPE_MAXIMUM (uintmax_t), false, false); return ((u & TSUID ? S_ISUID : 0) | (u & TSGID ? S_ISGID : 0) | (u & TSVTX ? S_ISVTX : 0) @@ -884,14 +890,14 @@ off_from_header (const char *p, size_t s) /* Negative offsets are not allowed in tar files, so invoke from_header with minimum value 0, not TYPE_MINIMUM (off_t). */ return from_header (p, s, "off_t", (uintmax_t) 0, - (uintmax_t) TYPE_MAXIMUM (off_t), false); + (uintmax_t) TYPE_MAXIMUM (off_t), false, false); } size_t size_from_header (const char *p, size_t s) { return from_header (p, s, "size_t", (uintmax_t) 0, - (uintmax_t) TYPE_MAXIMUM (size_t), false); + (uintmax_t) TYPE_MAXIMUM (size_t), false, false); } time_t @@ -899,7 +905,7 @@ time_from_header (const char *p, size_t s) { return from_header (p, s, "time_t", - (uintmax_t) TYPE_MINIMUM (time_t), - (uintmax_t) TYPE_MAXIMUM (time_t), false); + (uintmax_t) TYPE_MAXIMUM (time_t), false, false); } uid_t @@ -907,72 +913,72 @@ uid_from_header (const char *p, size_t s) { return from_header (p, s, "uid_t", - (uintmax_t) TYPE_MINIMUM (uid_t), - (uintmax_t) TYPE_MAXIMUM (uid_t), false); + (uintmax_t) TYPE_MAXIMUM (uid_t), false, false); } uintmax_t uintmax_from_header (const char *p, size_t s) { return from_header (p, s, "uintmax_t", (uintmax_t) 0, - TYPE_MAXIMUM (uintmax_t), false); + TYPE_MAXIMUM (uintmax_t), false, false); } -/* 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 +995,24 @@ 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 +1022,7 @@ 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 (block_number_option) { @@ -1090,15 +1098,20 @@ 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 (get_stat_mtime (&st->stat), false); + time_stamp_len = strlen (time_stamp); + if (datewidth < time_stamp_len) + datewidth = time_stamp_len; /* User and group names. */ - if (st->uname && current_format != V7_FORMAT + if (st->uname + && st->uname[0] + && current_format != V7_FORMAT && !numeric_owner_option) user = st->uname; else @@ -1110,7 +1123,7 @@ print_header (struct tar_stat_info *st, off_t block_ordinal) sizeof current_header->header.uid, 0, (uintmax_t) 0, (uintmax_t) TYPE_MAXIMUM (uintmax_t), - false); + false, false); if (u != -1) user = STRINGIFY_BIGINT (u, uform); else @@ -1121,7 +1134,9 @@ print_header (struct tar_stat_info *st, off_t block_ordinal) } } - if (st->gname && current_format != V7_FORMAT + if (st->gname + && st->gname[0] + && current_format != V7_FORMAT && !numeric_owner_option) group = st->gname; else @@ -1133,7 +1148,7 @@ print_header (struct tar_stat_info *st, off_t block_ordinal) sizeof current_header->header.gid, 0, (uintmax_t) 0, (uintmax_t) TYPE_MAXIMUM (uintmax_t), - false); + false, false); if (g != -1) group = STRINGIFY_BIGINT (g, gform); else @@ -1165,12 +1180,14 @@ 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)); @@ -1245,7 +1262,7 @@ 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) { @@ -1254,7 +1271,7 @@ 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)); } } @@ -1283,7 +1300,7 @@ skip_file (off_t size) else seekable_archive = false; } - + while (size > 0) { x = find_next_block (); @@ -1304,8 +1321,8 @@ skip_member (void) { char save_typeflag = current_header->header.typeflag; set_next_block_after (current_header); - - assign_string (&save_name, current_stat_info.file_name); + + assign_string (&save_name, current_stat_info.orig_file_name); if (current_stat_info.is_sparse) sparse_skip_file (¤t_stat_info);