74274b5dc3 which added the real_line_size to the buffer struct
didn't properly account for what happens when archive_fgets has to loop
more than once to find the end of a line. In most cases, this isn't a
problem, but could potentially cause a longer line such as PGP signature
to be improperly read.
This patch fixes the oversight and focuses on only calculating the line
length when we hit the end of line marker. The effective length is then
calculated via pointer arithmetic as:
(start_of_last_read + read_length) - start_of_line
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
If known, callers can pass the line size to this function in order to
avoid an strlen call. Otherwise, they simply pass 0 and
_alpm_strip_newline will do the call instead.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
We inevitably call strlen() or similar on the line returned from
_alpm_archive_fgets(), so include the line size of the interesting line
in the struct.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
This path is rarely (read: never) taken in any normal run of the code,
so injecting the fprintf() call everywhere with the macro is a bit
overkill. Instead, add a lightweight _alpm_alloc_fail() function that
gets called instead.
This does have a reasonable effect on the size of the generated code;
most places using the macros provided by util.c have their code size
reduced.
Signed-off-by: Dan McGee <dan@archlinux.org>
This fixes a bunch of small issues in order to enable a clean
successful build with a crazy number of GCC warning flags. A lot of
these changes are covered by -Wshadow, -Wformat-security, and
-Wstrict-overflow=5.
Signed-off-by: Dan McGee <dan@archlinux.org>
It seems that if we pass the permissions that we want the created
directory to have, then we should probably use it...
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Simplify the implementation:
- allocate and manipulate a copy of the passed in path rather than
building out a path as the while loop progresses
- use simple pointer arithmetic to skip uninteresting cases
- use mkdir(3)'s return value and errno to detect failure
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Set errno to 0 at the start of _alpm_open_archive as it is not set when
archive_read_open_fd fails. This can result in _alpm_pkg_load_internal
thinking errno == ENOENT and setting the wrong pm_errno. e.g.
Before:
> testpkg pacman-4.0.1-4-i686.pkg.tar.gz.sig
error: could not open file pacman-4.0.1-4-i686.pkg.tar.gz.sig: Unrecognized archive format
Cannot find the given file.
After:
> testpkg pacman-4.0.1-4-i686.pkg.tar.gz.sig
error: could not open file pacman-4.0.1-4-i686.pkg.tar.gz.sig: Unrecognized archive format
Cannot open the given file.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
pacman -U <pkg> returns a bogus "could not find or read package" if the
file is on a fuse file system that doesn't allow root access. Debug
output isn't very helpful here either so we should log why the access
check failed.
The other 2 checks already log something when failing so logging a more
specific error won't hurt either.
Signed-off-by: Florian Pritz <bluewind@xinu.at>
Signed-off-by: Dan McGee <dan@archlinux.org>
This moves the code for removal of local database entries right into
be_local.c, which was the last user of the rmrf() function we had in our
utility source file. We can simplify the implementation and make it
non-recursive as we know the structure of the local database entries.
Signed-off-by: Dan McGee <dan@archlinux.org>
The entry's name is only used when not "." or ".." so only print the
string then.
Signed-off-by: Olivier Brunel <i.am.jack.mail@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
"invalid" in this case simply means files that may or may not be
archives. Discovered via a `pacman -Sc` operation with delta files in
the package cache directory, but can be triggered if any file is passed
to `pacman -Ql` that isn't an archive, for instance, or if the sync
database file is not an archive.
Fix it up so we are more careful about calling archive_read_finish()
only on archives that are valid and have not already been closed, and
teach our archive open function to set the returned archive to NULL if
we aren't going to be returning something valid anyway.
Signed-off-by: Dan McGee <dan@archlinux.org>
More than likely the compiler will do the three operation breakdown we
had here before (2 shifts + subtraction), but let the compiler do the
optimizations and make the actual operation more obvious. This actually
slightly shrinks the function binary size, likely due to instruction
reordering or something.
Signed-off-by: Dan McGee <dan@archlinux.org>
Used in alpm_compute_md5sum() and alpm_compute_sha256sum().
Signed-off-by: Diogo Sousa <diogogsousa@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
Ensures that config.h is always ordered correctly (first) in the
includes. Also means that new source files get this for free without
having to remember to add it.
We opt for -imacros over -include as its more portable, and the
added constraint by -imacros doesn't bother us for config.h.
This also touches the HACKING file to remove the explicit mention of
config.h as part of the includes.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
As per HACKING file, we use 'CTRL(' rather than 'CTRL ('
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
We were using the size of a pointer, not the size of the whole
archive_read_buffer struct. Thanks to Clang/LLVM 3.0 and Allan/Dave in
IRC for finding this one.
Signed-off-by: Dan McGee <dan@archlinux.org>
Made existing documentation more consistent and added
documentation where there was none. One function still
needs documentation and is marked with 'TODO'.
Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This moves the common setup code of about 5 different callers into one
method. Error messages will now be common and shared in all places;
several paths did not have any messages at all before.
In addition, we now pick an ideal block size for the archive read based
off the larger value of our default buffer size or the st.st_blksize
field. For a filesystem such as NFS, this is often much larger than the
default 8192- values such as 32768 and 131072 are common.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is work originally provided by Sascha Kruse on FS#20360 with only
minor adjustments to the implementation. It's been expanded to cover:
NoUpgrade, NoExtract, IgnorePkg, IgnoreGroup.
Adds tests ignore008, sync139, sync502, and sync503.
Also satisfies FS#18988.
Original-work-by: Sascha Kruse <knopwob@googlemail.com>
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
The point of this early compare to NULL byte check was so we could bail
early and skip the strcmp() call. Given we weren't doing the check
right, this never exited early. Fix it to work as intended.
Noticed-by: Pepe Juárez <trulustapa@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This is a trivial operation that doesn't require calling a function over
and over- just do some math and indexing into a character array.
Signed-off-by: Dan McGee <dan@archlinux.org>
This removes an unnecessary level of buffering. We are not doing
line-based I/O here, so we can read in blocks of 8K at a time directly
from the file.
Signed-off-by: Dan McGee <dan@archlinux.org>
This takes the place of three previously used constants:
ARCHIVE_DEFAULT_BYTES_PER_BLOCK, BUFFER_SIZE, and CPBUFSIZE.
In libarchive 3.0, the first constant will be no more, so we can ensure
we are forward-compatible by removing our usage of it now. The rest are
unified for consistency.
By default, we will use the value of BUFSIZ provided by <stdio.h>, which
is 8192 on Linux. If that is undefined, a default value is provided.
Signed-off-by: Dan McGee <dan@archlinux.org>
First, use fstat() in preference to stat() since we already have an open
file handle. This also removes the need to check for a symlink as that
is not possible when a file is opened.
Next, use archive_entry_mode() rather than archive_entry_stat() as we
only use the mode portion of the stat struct and the call is much
cheaper. Also delay it until it is necessary.
Signed-off-by: Dan McGee <dan@archlinux.org>
Instead of iterating character by character, use memchr() calls to
hopefully speed up the search. A newline is the most likely culprit, so
search for that first followed by a NULL byte if there was no newline in
the buffer.
Signed-off-by: Dan McGee <dan@archlinux.org>
This will always be a 64-bit signed integer rather than the variable length
time_t type. Dates beyond 2038 should be fully supported in the library; the
frontend still lags behind because 32-bit platforms provide no localtime64()
or equivalent function to convert from an epoch value to a broken down time
structure.
Signed-off-by: Dan McGee <dan@archlinux.org>
This prepares the function to handle values past year 2038. The return type
is still limited to 32-bits on 32-bit systems; this will be adjusted in a
future patch.
Signed-off-by: Dan McGee <dan@archlinux.org>
No wonder these were slower than expected. We were only reading 4
(32-bit) or 8 (64-bit) bytes at a time and feeding it to the hash
functions. Define a buffer size constant and use it correctly so we feed
8K at a time into the hashing algorithm.
This cut one larger `-Sw --noconfirm` operation, with nothing to
actually download so only timing integrity, from 3.3s to 1.7s.
This has been broken since the original commit eba521913d introducing
OpenSSL usage for crypto hash functions. Boy do I feel stupid.
Signed-off-by: Dan McGee <dan@archlinux.org>
Rather than using a string-based path, we can restore the working
directory via a file descriptor and use of fchdir().
From the getcwd manpage:
Opening the current directory (".") and calling fchdir(2) to
return is usually a faster and more reliable alternative when
sufficiently many file descriptors are available.
Signed-off-by: Dan McGee <dan@archlinux.org>
_alpm_filecache_setup() destroys the list of cachedirs when it finds no
writeable directories in the config. This put us in an awkward situation
where _alpm_filecache_find() would locate a downloaded file in a r/o
cachedir, but then fail to install it after _alpm_filecache_setup() is
called (with a NULL argument). Change this behavior to merely prepend
the temporary directory to the list of available cachedirs.
Dan exposed it in e07547ee4e, as now a package can be found in a
directory we may not be able to actually store packages in.
Reported-by: Rémy Oudompheng <remy@archlinux.org>
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Put all the callback stuff in alpm.h in one spot, and make the following
renames for clarity with the new structure:
ALPM_TRANS_EVT_* --> ALPM_EVENT_*
ALPM_TRANS_CONV_* --> ALPM_QUESTION_*
ALPM_TRANS_PROGRESS_* --> ALPM_PROGRESS_*
alpm_option_get_convcb() --> alpm_option_get_questioncb()
alpm_option_set_convcb() --> alpm_option_set_questioncb()
Signed-off-by: Dan McGee <dan@archlinux.org>
This was just disgusting before, unnecessary to limit these to only
usage in a transaction. Still a lot of more room for cleanup but we'll
start by attaching them to the handle rather than the transaction we may
or may not even want to use these callbacks.
Signed-off-by: Dan McGee <dan@archlinux.org>
