+/*----------------------------------------------------------------------.
+| 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. */
+char const *
+tartime (time_t t)
+{
+ static char buffer[max (UINTMAX_STRSIZE_BOUND + 1,
+ INT_STRLEN_BOUND (int) + 16)];
+ char *p;
+
+#if USE_OLD_CTIME
+ p = ctime (&t);
+ if (p)
+ {
+ char const *time_stamp = p + 4;
+ for (p += 16; p[4] != '\n'; p++)
+ p[0] = p[4];
+ p[0] = '\0';
+ return time_stamp;
+ }
+#else
+ /* Use ISO 8610 format. See:
+ http://www.cl.cam.ac.uk/~mgk25/iso-time.html */
+ struct tm *tm = localtime (&t);
+ if (tm)
+ {
+ sprintf (buffer, "%04d-%02d-%02d %02d:%02d:%02d",
+ tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ 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)
+ *--p = '-';
+ while (buffer + sizeof buffer - 19 - 1 < p)
+ *--p = ' ';
+ return p;
+}
+
+/*-------------------------------------------------------------------------.
+| Actually print it. |
+| |
+| Plain and fancy file header block logging. Non-verbose just prints the |
+| name, e.g. for "tar t" or "tar x". This should just contain file names, |
+| so it can be fed back into tar with xargs or the "-T" option. The |
+| verbose option can give a bunch of info, one line per file. I doubt |
+| anybody tries to parse its format, or if they do, they shouldn't. Unix |
+| tar is pretty random here anyway. |
+`-------------------------------------------------------------------------*/
+
+/* 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 */
+
+/* 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
+