73 lines
2.1 KiB
Diff
73 lines
2.1 KiB
Diff
From d437ecf75de2d6fdeb2aed6f45c4b3b16373389b Mon Sep 17 00:00:00 2001
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From: Sergey Poznyakoff <gray@gnu.org>
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Date: Fri, 11 Aug 2023 21:35:30 +0300
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Subject: [PATCH] Revert "Fix savannah bug #63567"
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Commit e89c7a45eb broke deletion from archives. The reported number
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of bytes read is rounded to the nearest record anyway, revert the
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commit and document the fact.
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Reported by Ed Santiago. See
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https://bugzilla.redhat.com/show_bug.cgi?id=2230127
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* doc/tar.texi: Document the fact that --totals rounds up the
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number of bytes reads to the nearest record.
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* src/buffer.c: Revert changes.
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* tests/delete06.at: Fix expected status code and stderr.
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---
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doc/tar.texi | 5 +++++
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src/buffer.c | 3 +--
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tests/delete06.at | 7 +++++--
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3 files changed, 11 insertions(+), 4 deletions(-)
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diff --git a/doc/tar.texi b/doc/tar.texi
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index d43b39e4..ee631137 100644
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--- a/doc/tar.texi
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+++ b/doc/tar.texi
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@@ -4215,6 +4215,11 @@ Total bytes read: 7924664320 (7.4GiB, 95MiB/s)
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@end group
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@end smallexample
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+Notice, that since @command{tar} operates on @dfn{records}, the number
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+of bytes reported can be rounded up to the nearest full record. This
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+can happen, in particular, when the last record in the archive is
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+partial. @xref{Blocking}.
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+
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Finally, when deleting from an archive, the @option{--totals} option
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displays both numbers plus number of bytes removed from the archive:
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diff --git a/src/buffer.c b/src/buffer.c
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index 12a0579f..8a575f9a 100644
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--- a/src/buffer.c
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+++ b/src/buffer.c
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@@ -987,8 +987,7 @@ short_read (size_t status)
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}
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record_end = record_start + (record_size - left) / BLOCKSIZE;
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- if (left == 0)
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- records_read++;
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+ records_read++;
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}
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/* Flush the current buffer to/from the archive. */
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diff --git a/tests/delete06.at b/tests/delete06.at
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index 9668a28c..c84ba20e 100644
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--- a/tests/delete06.at
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+++ b/tests/delete06.at
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@@ -36,7 +36,10 @@ esac
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dd if=archive.tar of=trunc.tar bs=$size count=1 2>/dev/null
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tar --delete 'b/' -f trunc.tar
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],
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-[0],
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-[],[],[],[],[gnu, pax])
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+[2],
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+[],
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+[tar: lseek: trunc.tar: Value too large for defined data type
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+tar: Exiting with failure status due to previous errors
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+],[],[],[gnu, pax])
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AT_CLEANUP
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--
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2.41.0
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