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These wrap the normal open() and close() low-level I/O calls and ensure
EINTR is handled correctly.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Replacing the strdup when after the first NULL check assures that we get
continue with payload->remote_name defined.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
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Dan: fix mask calculation, add it to the success/fail block instead.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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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>
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There aretwo seperate issues in the same block of file conflict
checking code here:
1) If realpath errored, such as when a symlink was broken, we would call
'continue' rather than simply exit this particular method of
resolution. This was likely just a copy-paste mistake as the previous
resolving steps all use loops where continue makes sense. Refactor
the check so we only proceed if realpath is successful, and continue
with the rest of the checks either way.
2) The real problem this code was trying to solve was canonicalizing
path component (e.g., directory) symlinks. The final component, if
not a directory, should not be handled at all in this loop. Add a
!S_ISLNK() condition to the loop so we only call this for real files.
There are few other small cleanups to the debug messages that I made
while debugging this problem- we don't need to keep printing the file
name, and ensure every block that sets resolved_conflict to true prints
a debug message so we know how it was resolved.
This fixes the expected failures from symlink010.py and symlink011.py,
while still ensuring the fix for fileconflict007.py works.
Signed-off-by: Dan McGee <dan@archlinux.org>
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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>
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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>
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Extend the return values of compute_download_size to allow callers to
know that a .part file exists for the package.
This extra value isn't currently used, but it'll be needed later on.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This adds a logger to the CURLE_OK case so we can always know the return
code if it was >= 400, and debug log it regardless. Also adjust another
logger to use the cURL error message directly, as well as use fstat()
when we have an open file handle rather than stat().
Signed-off-by: Dan McGee <dan@archlinux.org>
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Conflicts:
src/pacman/package.c
Signed-off-by: Dan McGee <dan@archlinux.org>
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Create a new static function called 'download_single_file' which
iterates over the servers for each payload.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dave Reisner <dreisner@archlinux.org>
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This is done by both the delta and regular file code, so we can extract
a little helper method. Done mostly to satisfy my "why are we repeating
code here" itch.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Break out the logic of finding payloads into a separate static function
to avoid nesting mayhem. After gathering all the records, download them
all at once.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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We don't use this anywhere; "comment" it out so we still remain
relatively close to the upstream sources.
Signed-off-by: Dan McGee <dan@archlinux.org>
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The absolutely terrible part about this is the failure on GPGME's part
to distinguish between "key not found" and "keyserver timeout". Instead,
it returns the same silly GPG_ERR_EOF in both cases (why isn't
GPG_ERR_TIMEOUT being used?), leaving us helpless to tell them apart.
Spit out a generic enough error message that covers both cases;
unfortunately we can't provide much guidance to the user because we
aren't sure what actually happened.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This logic is reused in both diskspace and downloadspace check
functions, so pull it out into its own static method.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This function determines if the given cachedir has at least the given
amount of free space on it. This will be later used in the sync code to
preemptively halt downloads.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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We can take a large shortcut here that saves us a lot of time,
especially when upgrading packages with lots of directories. Obviously
iterating the full file list of every single package to determine if
this directory was present in any other package can take quite some time
on a system with many packages installed. We don't need to remove a
directory at all if we are upgrading a package and the version we are
moving to still had the directory.
Also make a small optimization on the package comparsion- we really only
care about equality here, not the result of the compare, so we can
shortcut using our name_hash.
What kind of benefit does this give us? Oh, only a reduction from 295.7
million to 1.4 million strcmp() calls (99.5% fewer) during a
`pacman -S linux libreoffice-common` operation.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Thanks to Eduardo Tongson on the mailing list.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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This is in the realm of "probably not going to happen", but if someone
were to translate "disk" to a string longer than 256 characters, we
would have a smashed/corrupted stack due to our unchecked strcpy() call.
Rework the function to always length-check the value we copy into the
hostname buffer, and do it with memcpy rather than the more cumbersome
and unnecessary snprintf.
Finally, move the magic 256 value into a constant and pass it into the
function which is going to get inlined anyway.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Conflicts:
src/pacman/util.c
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This should help point users in the right direction if they have not
initialized via pacman-key just yet.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This one is pretty darn useless. Just derefence the ->data attribute
since the type is public anyway and save yourself the function call.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This will be useful when extending disk space checks to free space
checking before we download package files.
Signed-off-by: Dan McGee <dan@archlinux.org>
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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>
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In the default configuration, we can enter the signing code but still
have nothing to do with GPGME- for example, if database signatures are
optional but none are present. Delay initialization of GPGME until we
know there is a signature file present or we were passed base64-encoded
data.
This also makes debugging with valgrind a lot easier as you don't have
to deal with all the GPGME error noise because their code leaks like a
sieve.
Signed-off-by: Dan McGee <dan@archlinux.org>
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If you need zero-filled allocations, call CALLOC() instead.
This was from the original definition of these macros in commit
cc754bc6e3be0f3; hopefully our code is in the shape it needs to be to
switch this behavior.
Signed-off-by: Dan McGee <dan@archlinux.org>
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These backup-related paths in package extraction are used on relatively
few files during the install process, so bump them off the stack and
into the heap. This removes the artificial PATH_MAX limitation on their
length as well.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This moves the repetitive (and highly unlikely) logging work to a
single location.
Signed-off-by: Dan McGee <dan@archlinux.org>
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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>
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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>
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We have a few incomplete translations, but these should be addressable
before the 4.0.1 maint release that is surely not that far in the
future.
Signed-off-by: Dan McGee <dan@archlinux.org>
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In prep for the 4.0.0 release.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Similar to what we did in edd9ed6a, disconnect the relationship with our
stack allocated error buffer from the curl handle. Just as an FTP
connection might have some network chatter on teardown causing the
progress callback to be triggered, we might also hit an error condition
that causes curl to write to our (now out of scope) error buffer.
I'm unable to reproduce FS#26327, but I have a suspicion that this
should fix it.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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This was a bad oversight on my part, pointed out by Jakob. Whoops.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Another place where we were doing the dirty work by hand.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Expose the current static get_pkgpath() function internally to the rest
of the library as _alpm_local_db_pkgpath(). This allows use of this
convenience function in add.c and remove.c when forming the path to the
scriptlet location.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Add an is_archive parameter to reduce the amount of black magic going
on. Rework to use fewer PATH_MAX sized local variables, and simplify
some of the logic where appropriate in both this function and in the
callers where duplicate calls can be replaced by some conditional
parameter code.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This is a poor place for it, and it will likely move again in the
future, but it's better to have it here than as a static variable.
Initialization of this variable is now no longer necessary as its
zeroed on creation of the payload struct.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This was done to squash a memory leak in the sync database download
code. When we downloaded a database and then reused the payload struct,
we could find ourselves calling get_fullpath() for the signatures and
overwriting non-freed values we had left over from the database
download.
Refactor the payload_free function into a payload_reset function that we
can call that does NOT free the payload itself, so we can reuse payload
structs. This also allows us to move the payload to the stack in some
call paths, relieving us of the need to alloc space.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Rather than always initializing it on any handle creation. There are
several frontend operations (search, info, etc.) that never need the
download code, so spending time initializing this every single time is a
bit silly. This makes it a bit more like the GPGME code init path.
Signed-off-by: Dan McGee <dan@archlinux.org>
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