A typical diff will not show what's going on and you need to see full
functions. The core code is like this, at the end of of write_one()
e->idx.offset = *offset;
size = write_object(f, e, *offset);
if (!size) {
e->idx.offset = recursing;
return WRITE_ONE_BREAK;
}
written_list[nr_written++] = &e->idx;
/* make sure off_t is sufficiently large not to wrap */
if (signed_add_overflows(*offset, size))
die("pack too large for current definition of off_t");
*offset += size;
Here we can see that the in-pack object size is returned by
write_object (or indirectly by write_reuse_object). And it's used to
calculate object offsets, which end up in the pack index file,
generated at the end.
If "size" overflows (on 32-bit sytems, unsigned long is 32-bit while
off_t can be 64-bit), we got wrong offsets and produce incorrect .idx
file, which may make it look like the .pack file is corrupted.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
unpack_entry_data() receives an off_t value from unpack_raw_entry(),
which could be larger than unsigned long on 32-bit systems with large
file support. Correct the type so truncation does not happen. This
only affects bad object reporting though.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use the right type for offsets in this case, off_t, which makes a
difference on 32-bit systems with large file support, and change
formatting code accordingly.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On 32-bit systems with large file support, one entry could be larger
than 4GB and overflow "len". Correct it so we can unpack a full entry.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This field, filled by sha1_object_info() contains the on-disk size of
an object, which could go over 4GB limit of unsigned long on 32-bit
systems. Use off_t for it instead and update all callers.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
On 32 bit systems with large file support, unsigned long is 32-bit
while the two offsets in the subtraction expression (pack-objects has
the exact same expression as in sha1_file.c but not shown in diff) are
in 64-bit. If an in-pack object is larger than 2^32 len/datalen is
truncated and we get a misleading "error: bad packed object CRC for
..." as a result.
Use off_t for len and datalen. check_pack_crc() already accepts this
argument as off_t and can deal with 4+ GB.
Noticed-by: Christoph Michelbach <michelbach94@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "are we talking with TTY, doing an interactive session?"
detection has been updated to work better for "Git for Windows".
* kb/msys2-tty:
mingw: make isatty() recognize MSYS2's pseudo terminals (/dev/pty*)
A couple of bugs around core.autocrlf have been fixed.
* tb/core-eol-fix:
convert.c: ident + core.autocrlf didn't work
t0027: test cases for combined attributes
convert: allow core.autocrlf=input and core.eol=crlf
t0027: make commit_chk_wrnNNO() reliable
Many commands normalize command line arguments from NFD to NFC
variant of UTF-8 on OSX, but commands in the "diff" family did
not, causing "git diff $path" to complain that no such path is
known to Git. They have been taught to do the normalization.
* ar/diff-args-osx-precompose:
diff: run arguments through precompose_argv
Correct faulty recommendation to use "git submodule deinit ." when
de-initialising all submodules, which would result in a strange
error message in a pathological corner case.
* sb/submodule-deinit-all:
submodule deinit: require '--all' instead of '.' for all submodules
"http.cookieFile" configuration variable clearly wants a pathname,
but we forgot to treat it as such by e.g. applying tilde expansion.
* bn/http-cookiefile-config:
http: expand http.cookieFile as a path
Documentation: config: improve word ordering for http.cookieFile
Running tests with '-x' option to trace the individual command
executions is a useful way to debug test scripts, but some tests
that capture the standard error stream and check what the command
said can be broken with the trace output mixed in. When running
our tests under "bash", however, we can redirect the trace output
to another file descriptor to keep the standard error of programs
being tested intact.
* jk/test-send-sh-x-trace-elsewhere:
test-lib: set BASH_XTRACEFD automatically
"git describe --contains" often made a hard-to-justify choice of
tag to give name to a given commit, because it tried to come up
with a name with smallest number of hops from a tag, causing an old
commit whose close descendant that is recently tagged were not
described with respect to an old tag but with a newer tag. It did
not help that its computation of "hop" count was further tweaked to
penalize being on a side branch of a merge. The logic has been
updated to favor using the tag with the oldest tagger date, which
is a lot easier to explain to the end users: "We describe a commit
in terms of the (chronologically) oldest tag that contains the
commit."
* js/name-rev-use-oldest-ref:
name-rev: include taggerdate in considering the best name
"git fsck" learned to catch NUL byte in a commit object as
potential error and warn.
* jc/fsck-nul-in-commit:
fsck: detect and warn a commit with embedded NUL
fsck_commit_buffer(): do not special case the last validation
Portability enhancement for "rebase -i" to help platforms whose
shell does not like "for i in <empty>" (which is not POSIX-kosher).
* jk/rebase-interative-eval-fix:
rebase--interactive: avoid empty list in shell for-loop
On Windows, .git and optionally any files whose name starts with a
dot are now marked as hidden, with a core.hideDotFiles knob to
customize this behaviour.
* js/windows-dotgit:
mingw: remove unnecessary definition
mingw: introduce the 'core.hideDotFiles' setting
Documentation for "git merge --verify-signatures" has been updated
to clarify that the signature of only the commit at the tip is
verified. Also the phrasing used for signature and key validity is
adjusted to align with that used by OpenPGP.
* kf/gpg-sig-verification-doc:
Documentation: clarify signature verification
Mark several messages for translation.
* va/i18n-misc-updates:
i18n: unpack-trees: avoid substituting only a verb in sentences
i18n: builtin/pull.c: split strings marked for translation
i18n: builtin/pull.c: mark placeholders for translation
i18n: git-parse-remote.sh: mark strings for translation
i18n: branch: move comment for translators
i18n: branch: unmark string for translation
i18n: builtin/rm.c: remove a comma ',' from string
i18n: unpack-trees: mark strings for translation
i18n: builtin/branch.c: mark option for translation
i18n: index-pack: use plural string instead of normal one
MSYS2 emulates pseudo terminals via named pipes, and isatty() returns 0
for such file descriptors. Therefore, some interactive functionality
(such as launching a pager, asking if a failed unlink should be repeated
etc.) doesn't work when run in a terminal emulator that uses MSYS2's
ptys (such as mintty).
However, MSYS2 uses special names for its pty pipes ('msys-*-pty*'),
which allows us to distinguish them from normal piped input / output.
On startup, check if stdin / stdout / stderr are connected to such pipes
using the NtQueryObject API from NTDll.dll. If the names match, adjust
the flags in MSVCRT's ioinfo structure accordingly.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Commit f2f0267 (archive-tar: use xsnprintf for trivial
formatting, 2015-09-24) converted cases of "sprintf" to
"xsnprintf", but accidentally left one as just "snprintf".
This meant that we could silently truncate the resulting
buffer instead of flagging an error.
In practice, this is impossible to achieve, as we are
formatting a ustar checksum, which can be at most 7
characters. But the point of xsnprintf is to document and
check for "should be impossible" conditions; this site was
just accidentally mis-converted during f2f0267.
Noticed-by: Paul Green <Paul.Green@stratus.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* sb/misc-cleanups:
submodule-config: don't shadow `cache`
config.c: drop local variable
credential-cache, send_request: close fd when done
bundle: don't leak an fd in case of early return
abbrev_sha1_in_line: don't leak memory
notes: don't leak memory in git_config_get_notes_strategy
Some multi-byte encoding can have a backslash byte as a later part
of one letter, which would confuse "highlight" filter used in
gitweb.
* sk/gitweb-highlight-encoding:
gitweb: apply fallback encoding before highlight
