On Mon, Jun 26, 2023 at 11:09:10AM -0600, Todd C. Miller wrote:
> If the mtime in the file header is larger than MAX_TIME_T, trucate
> it to MAX_TIME_T, not INT_MAX. The existing assignment dates from
> before we had a MAX_TIME_T definition in pax.
How strange the checks use MAX_TIME_T as a bound value, but the
assignments not. For FFS1 it likely does not matter, since its
timestamps are 32-bit on disk. But for ffs2 it does.
OK,
-Otto
>
> OK?
>
> - todd
>
> Index: cpio.c
> ===
> RCS file: /cvs/src/bin/pax/cpio.c,v
> retrieving revision 1.33
> diff -u -p -u -r1.33 cpio.c
> --- cpio.c16 Sep 2017 07:42:34 - 1.33
> +++ cpio.c26 Jun 2023 17:05:35 -
> @@ -294,7 +294,7 @@ cpio_rd(ARCHD *arcn, char *buf)
> arcn->sb.st_rdev = (dev_t)asc_ul(hd->c_rdev, sizeof(hd->c_rdev), OCT);
> val = asc_ull(hd->c_mtime, sizeof(hd->c_mtime), OCT);
> if (val > MAX_TIME_T)
> - arcn->sb.st_mtime = INT_MAX;/* XXX 2038 */
> + arcn->sb.st_mtime = MAX_TIME_T;
> else
> arcn->sb.st_mtime = val;
> arcn->sb.st_mtim.tv_nsec = 0;
> Index: tar.c
> ===
> RCS file: /cvs/src/bin/pax/tar.c,v
> retrieving revision 1.70
> diff -u -p -u -r1.70 tar.c
> --- tar.c 1 Mar 2022 21:19:11 - 1.70
> +++ tar.c 26 Jun 2023 17:05:35 -
> @@ -411,7 +411,7 @@ tar_rd(ARCHD *arcn, char *buf)
> arcn->sb.st_size = (off_t)asc_ull(hd->size, sizeof(hd->size), OCT);
> val = asc_ull(hd->mtime, sizeof(hd->mtime), OCT);
> if (val > MAX_TIME_T)
> - arcn->sb.st_mtime = INT_MAX;/* XXX 2038 */
> + arcn->sb.st_mtime = MAX_TIME_T;
> else
> arcn->sb.st_mtime = val;
> arcn->sb.st_ctime = arcn->sb.st_atime = arcn->sb.st_mtime;
> @@ -788,7 +788,7 @@ reset:
> if (arcn->sb.st_mtime == 0) {
> val = asc_ull(hd->mtime, sizeof(hd->mtime), OCT);
> if (val > MAX_TIME_T)
> - arcn->sb.st_mtime = INT_MAX;/* XXX 2038 */
> + arcn->sb.st_mtime = MAX_TIME_T;
> else
> arcn->sb.st_mtime = val;
> }
>
