On operating systems we support, the behavior is always such that the
kernel will do the right thing as far as invalidating the file
descriptor, regardless of the eventual return value. Therefore,
potentially looping and calling close multiple times is wrong.
At best, we call close again on an invalid FD and throw a spurious EBADF
error. At worst, we might close an FD which doesn't belong to us when a
multi-threaded application opens its own file descriptor between
iterations of the loop.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
When attempting to install a package (either via -S or -U) and the
signature is missing, the current error message "invalid or corrupted
package (PGP signature)" is very unclear. Instead inform the user
that the package is missing the required signature.
Partial fix for FS#34741.
Signed-off-by: Allan McRae <allan@archlinux.org>
When installing a package with "pacman -U" that has a detached
signature, check if the needed key is in the keyring and download
if necessary.
Signed-off-by: Allan McRae <allan@archlinux.org>
We have a few of these and might as well gather them together. This also
cleans up the code a bit by using an enum instead of integer values, as
well as makes a "search for file in filelist" function public so
frontends can do better than straight linear search of the filelists.
Signed-off-by: Dan McGee <dan@archlinux.org>
On the assumption that these arrays are already mostly sorted, use the
standard quicksort method to sort the files arrays. The files_msort
function name is tweaked to give it a more general name to reflect this
change.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@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>
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>
Failure isn't always due to the package file location not existing;
permission issues can also play a part on something like a FUSE-based
filesystem inaccessible to root.
Signed-off-by: Dan McGee <dan@archlinux.org>
When installing a package, store information on which validation
method was used and output this on "pacman -Qi" operations.
e.g.
Validated By : SHA256 Sum
Possible values are Unknown, None, MD5 Sum, SHA256 Sum, Signature.
Dan: just a few very minor tweaks.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
No new behaviour introduced, everything should work exactly as before.
Dan: refactored to use the single alpm_depend_t structure.
Signed-off-by: Benedikt Morbach <benedikt.morbach@googlemail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
If we begin to create a file list when loading a package, but abort
because of an error to one of our goto labels, the memory used to create
the file list will leak. This is because we use a set of local variables
to hold the data, and thus _alpm_pkg_free() cannot clean up for us.
Use the file list struct on the package object as much as possible to
keep state when building the file list, thus allowing _alpm_pkg_free()
to clean up any partially built data.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is easily triggered via a `pacman -Sc` operation when it attempts
to open a delta file as a package- we end up leaking loads of memory
due to us never freeing the archive object. When you have upwards of
1200 delta files in your sync database directory, this results in a
memory leak of nearly 1.5 MiB.
Also fix another memory leak noticed at the same time- we need to call
the internal _alpm_pkg_free() function, as without the origin data being
set the public free function will do nothing.
Signed-off-by: Dan McGee <dan@archlinux.org>
Add 2012 to the copyright range for all libalpm and pacman source files.
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>
"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>
be_package.c: In function 'parse_descfile':
be_package.c:181:28: error: comparison between signed and unsigned
integer expressions [-Werror=sign-compare]
ptr - key + 2 is guaranteed to be > 0 so we can cast to size_t
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
This eliminates the need for strtrim() usage completely, instead relying
on the fact that the only allowed delimiter between key and value is the
" = " string.
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>
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 gives us a bit more control and over the archive reading process,
and a bit less is done behind the scenes. It also allows us to use
fstat() in preference to stat(), which should avoid some potential race
conditions.
Some reorganization is necessary to move the stat calls after the open()
calls. Error handling and cleanup in general is also improved, as we had
several potential memory and file handle leaks before in some error
paths.
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>
There is some pecular behavior going on here when a package is loaded
that has no files, as is very common in our test suite. When we enter
the realloc/sort code, a package without files will call the following:
files = realloc(NULL, 0);
One would assume this is a no-op, returning a NULL pointer, but that is
not the case and valgrind later reports we are leaking memory. Fix the
whole thing by skipping the reallocation and sort steps if the pointer
is NULL, as we have nothing to do.
Note that the package still gets marked as 'files loaded', becuase
although there were none, we tried and were successful.
Signed-off-by: Dan McGee <dan@archlinux.org>
This moves the result processing out of the validation check loop itself
and into a new loop. Errors will be presented to the user one-by-one
after we fully complete the validation loop, so they no longer overlap
the progress bar.
Unlike the database validation, we may have several errors to process in
sequence here, so we use a function-scoped struct to track all the
necessary information between seeing an error and asking the user about
it.
The older prompt_to_delete() callback logic is still kept, but only for
checksum failures. It is debatable whether we should do this at all or
just delegate said actions to the user.
Signed-off-by: Dan McGee <dan@archlinux.org>
_alpm_pkg_load_internal() was becoming a monster. Extract the top bit of
the method that dealt with checksum and signature validation into a
separate method that should be called before one loads a package to
ensure it is valid.
Signed-off-by: Dan McGee <dan@archlinux.org>
This shouldn't really be declared with const, and causes a compile error
when -Wcast-qual is used. Remove the const specifier from the function
specification and all implementations.
Also fix one other trivial -Wcast-qual warning in _alpm_db_cmp().
Signed-off-by: Dan McGee <dan@archlinux.org>
Changes in commit dc3336c277 caused this to stop working as expected for
sync packages, due to the way the logic is structured. Ensure we always
enter the signature code if the bitflag is flipped on to check
signatures for packages. Rename 'use_sig' to 'has_sig' for clarity.
Signed-off-by: Dan McGee <dan@archlinux.org>
We were using atol(), which on 32 bit, cannot handle values greater than
2GiB, which is fail.
Switch to a strtoull() wrapper function tailored toward parsing off_t
values. This allows parsing of very large positive integer values. off_t
is a signed type, but in our usages, we never parse or have a need for
negative values, so the function will return -1 on error.
Before:
$ pacman -Si flightgear-data | grep Size
Download Size : 2097152.00 K
Installed Size : 2097152.00 K
After:
$ ./src/pacman/pacman -Si flightgear-data | grep Size
Download Size : 2312592.52 KiB
Installed Size : 5402896.00 KiB
Signed-off-by: Dan McGee <dan@archlinux.org>
There are many other ways to fail a package load other than "file not
found". We should also use the correct error code in this case. Clean it
up a bit in the various callers.
Signed-off-by: Dan McGee <dan@archlinux.org>
Just pass the entire sync package in if we have it; that way we can do
any necessary operations involving it rather than have a parameter list
growing endlessly.
Signed-off-by: Dan McGee <dan@archlinux.org>
This one wasn't all that necessary as we only used it in one place in
the function, which can be checked easily enough at the call site.
Signed-off-by: Dan McGee <dan@archlinux.org>
The precedence goes as follows: signature > sha256sum > md5sum
Add some logic and helper methods to check what we have available when
loading a package, and then only check what is necessary to verify the
package. This should speed up sync database verifies as we no longer
will be doing both a checksum and a signature validation.
Signed-off-by: Dan McGee <dan@archlinux.org>
We did this with depends way back in commit c244cfecf6 in 2007. We
can do it with these fields as well.
Of note is the inclusion of provides even though only '=' is supported-
we'll parse other things, but no guarantees are given as to behavior,
which is more or less similar to before since we only looked for the
equals sign.
Also of note is the non-inclusion of optdepends; this will likely be
resolved down the road.
The biggest benefactors of this change will be the resolving code that
formerly had to parse and reparse several of these fields; it only
happens once now at load time. This does lead to the disadvantage that
we will now always be parsing this information up front even if we never
need it in the split form, but as these are uncommon fields and our
parser is quite efficient it shouldn't be a big concern.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is a bit of a mess, due to the fact that we have a progress meter
running. It is also ironic that we are in the midst of a method named
"commit" when we haven't done a damn thing yet, and can still fail hard
if either a checksum or signature is invalid or unrecognized.
Adapt the former test_md5sum method to be invoked for any of the various
failure types, which at least gives the user some indication of what
packages are failing. A second patch will be needed to actually show
worthwhile error codes, but this is going to involve modifying the
actual data passed with the callback.
Signed-off-by: Dan McGee <dan@archlinux.org>
If we are missing a local database file, we get repeated messages over
and over telling us the same thing, rather than being sane and erroring
only once. This package adds an INFRQ_ERROR level that is added to the
mask if we encounter any errors on a local_db_read() operation, and
short circuits future calls if found in the value. This fixes FS#25313.
Note that this does not make any behavior changes other than suppressing
error messages and repeated code calls to failure cases; we still have
more to do in the "local database is hosed" department.
Also make a small update to the wrong but unused flags set in
be_package; using INFRQ_ALL there was not totally correct.
Signed-off-by: Dan McGee <dan@archlinux.org>
We don't write with extra or unknown whitespace, so there is little
reason for us to trim it when reading either. This also fixes the
hopefully never encountered "paths that start or end with spaces" issue,
for which two pactests have been added. The tests also contain other
evil characters that we have encountered before and handle just fine,
but it doesn't hurt to ensure we don't break such support in the future.
Signed-off-by: Dan McGee <dan@archlinux.org>
This accomplishes quite a few things with one rather invasive change.
1. Iteration is much more performant, due to a reduction in pointer
chasing and linear item access.
2. Data structures are smaller- we no longer have the overhead of the
linked list as the file struts are now laid out consecutively in
memory.
3. Memory allocation has been massively reworked. Before, we would
allocate three different pieces of memory per file item- the list
struct, the file struct, and the copied filename. What this resulted
in was massive fragmentation of memory when loading filelists since
the memory allocator had to leave holes all over the place. The new
situation here now removes the need for any list item allocation;
allocates the file structs in contiguous memory (and reallocs as
necessary), leaving only the strings as individually allocated. Tests
using valgrind (massif) show some pretty significant memory
reductions on the worst case `pacman -Ql > /dev/null` (366387 files
on my machine):
Before:
Peak heap: 54,416,024 B
Useful heap: 36,840,692 B
Extra heap: 17,575,332 B
After:
Peak heap: 38,004,352 B
Useful heap: 28,101,347 B
Extra heap: 9,903,005 B
Several small helper methods have been introduced, including a list to
array conversion helper as well as a filelist merge sort that works
directly on arrays.
Signed-off-by: Dan McGee <dan@archlinux.org>
This gives us more granularity than the former Never/Optional/Always
trifecta. The frontend still uses these values temporarily but that will
be changed in a future patch.
* Use 'siglevel' consistenly in method names, 'level' as variable name
* The level becomes an enum bitmask value for flexibility
* Signature check methods now return a array of status codes rather than
a simple integer success/failure value. This allows callers to
determine whether things such as an unknown signature are valid.
* Specific signature error codes mostly disappear in favor of the above
returned status code; pm_errno is now set only to PKG_INVALID_SIG or
DB_INVALID_SIG as appropriate.
Signed-off-by: Dan McGee <dan@archlinux.org>
This allows us to capture size and mode data when building filelists
from package files. Future patches will take advantage of this newly
available information, and frontends can use it as well.
Signed-off-by: Dan McGee <dan@archlinux.org>
