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This is a wrapper function for access() which logs some debug
information and eases handling in case of split directory and filename.
Signed-off-by: Florian Pritz <bluewind@xinu.at>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This addresses FS#25141. We shouldn't remove every empty directory we
come across during the removal process unless it is truly not known to
any other package. This will prevent removal of essential directories
such as '/var/lock/'.
This is accomplished by first checking the empty/non-empty status of a
directory, which was previously done implicitly by calling rmdir() and
ignoring errors. We do this to avoid the next (new) check in most cases,
which is to look at all local packages to see if the to-be-removed
directory is present in another packages' filelist. If we do not find it
anywhere, then we remove it, else we keep the file around.
The pactest has been updated to test more cases, as well as finding a
flaw in the original expected to fail case- we need separate DIR and
FILE based EXIST rules.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This can only ever operate on the local database, and a local package at
that. Change the function signature to take a handle and package object,
add the relevant asserts, and ensure the frontend can detect the package
not found condition when finding packages to pass to this method.
Signed-off-by: Dan McGee <dan@archlinux.org>
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The bulk of this commit is adding new tests to ensure the new behavior
works without disrupting old behavior. This is a relatively sane maneuver
when a package adds a conf file (e.g. '/etc/mercurial/hgrc') that was
not previously in the package, but it is placed in the backup array. In
essence, we can treat the existing file as having always been a part of
the package and do our normal compare/install as pacnew logic checks.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This code duplication has always been a rather clumsy casuality of
fixing some past upgrade issues. Unify the removal code across upgrade
and remove operations into a new _alpm_remove_single_package() method
wihch makes it very clear how we handle upgrade and remove differently,
via several conditionals on newpkg.
This commit highlights interesting behavior such as the fact that the
implicit removal in every package upgrade never gets transaction events
or progress callbacks.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Fixes "error: no previous prototype for '_alpm_raw_cmp'
[-Werror=missing-prototypes]" warnings, and also prevents someone from
getting the prototypes and functions out of sync.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This transitional struct becomes delicious noms for dload_payload.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
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Restore some sanity to the number of arguments passed to _alpm_download
and curl_download_internal.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
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This means creating a new struct which can pass more descriptive data
from the back end sync functions to the downloader. In particular, we're
interested in the download size read from the sync DB. When the remote
server reports a size larger than this (via a content-length header),
abort the transfer.
In cases where the size is unknown, we set a hard upper limit of:
* 25MiB for a sync DB
* 16KiB for a signature
For reference, 25MiB is more than twice the size of all of the current
binary repos (with files) combined, and 16KiB is a truly gargantuan
signature.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
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URLs might end with a slash and follow redirects, or could be a
generated by a script such as /getpkg.php?id=12345. In both cases, we
may have a better filename that we can write to, taken from either
content-disposition header, or the effective URL.
Specific to the first case, we write to a temporary file of the format
'alpmtmp.XXXXXX', where XXXXXX is randomized by mkstemp(3). Since this
is a randomly generated file, we cannot support resuming and the file is
unlinked in the event of an interrupt.
We also run into the possibility of changing out the filename from under
alpm on a -U operation, so callers of _alpm_download can optionally pass
a pointer to a *char to be filled in by curl_download_internal with the
actual filename we wrote to. Any sync operation will pass a NULL pointer
here, as we rely on specific names for packages from a mirror.
Fixes FS#22645.
Signed-off-by: Dave Reisner <d@falconindy.com>
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The supposed safety blanket of this function is better handled by
explicit length checking and usages of strlen() on known NULL-terminated
strings rather than hoping things fit in a buffer. We also have no need
to fully fill a PATH_MAX length variable with NULLs every time as long
as a single terminating byte is there. Remove usages of it by using
strcpy() or memcpy() as appropriate, after doing length checks via
strlen().
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dave Reisner <dreisner@archlinux.org>
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We'll need these functions to do locale agnostic and case insensitive
string comparisons.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
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We can readily detect the first node in a list by checking if
node->prev->next is NULL. So there is no need to pass the head
of the list to this function and its prototype now looks like
all the other item accessors.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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The only thing this accessor did was remove the const qualifier
given our entire list implementation requires passing around the
head anyway.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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They are placeholders, but important for things like trying to re-sync a
database missing a signature. By using the alpm_db_validity() method at
the right time, a client can take the appropriate action with these
invalid databases as necessary.
In pacman's case, we disallow just about anything that involves looking
at a sync database outside of an '-Sy' operation (although we do check
the validity immediately after). A few operations are still permitted-
'-Q' ops that don't touch sync databases as well as '-R'.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Show output in -Qip for each package signature, which includes the UID
string from the key ("Joe User <joe@example.com>") and the validity of
said key. Example output:
Signatures : Valid signature from "Dan McGee <dpmcgee@gmail.com>"
Unknown signature from "<Key Unknown>"
Invalid signature from "Dan McGee <dpmcgee@gmail.com>"
Also add a backend alpm_sigresult_cleanup() function since memory
allocation took place on this object, and we need some way of freeing
it.
Signed-off-by: Dan McGee <dan@archlinux.org>
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The error code is in fact a bitmask value of an error code and an error
source, so use the proper function to get only the relevant bits. For
the no error case, this shouldn't ever matter, but it bit me when I was
trying to compare the error code to other values and wondered why it
wasn't working, so set a good example.
Signed-off-by: Dan McGee <dan@archlinux.org>
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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>
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Conflicts:
lib/libalpm/be_local.c
lib/libalpm/be_package.c
lib/libalpm/conflict.c
lib/libalpm/diskspace.c
lib/libalpm/dload.c
lib/libalpm/remove.c
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We can take advantage of a few things on our new and improved filelist
in this code.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Now that the filelists capture mode and size information, we can read
the data from there and prevent having to loop through and uncompress
every archive to check required diskspace usage.
Signed-off-by: Dan McGee <dan@archlinux.org>
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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>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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This saves replicating the potentially large list of files in a package
that is being removed.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Helper function to get the previous item in a list
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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We can just perform the same search operation on both lists.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This removes some of the repetition in the code for reading and parsing
database file lines.
Signed-off-by: Dan McGee <dan@archlinux.org>
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We passed in 'line', but not 'buf.line'. In addition, the macros
building off of READ_NEXT() assume variable names anyway. Since we only
use these macros in one function, might as well simplify them.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
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Change the check into a loop over all signatures present and returned by
GPGME. Also modify the return values and checks slightly now that I know
a little bit more about what type of values are returned.
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 allows one to check if a database is valid or invalid.
Signed-off-by: Dan McGee <dan@archlinux.org>
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There is little need to expose the guts of this function even within the
library. Make it static in be_local.c, and clean up a few other things
since we know exactly where it is being called from:
* Remove unnecessary origin checks in _cache_get_*() methods- if you are
calling a cache method your package type will be correct.
* Remove sanity checks within local_db_read() itself- packages will
always have a name and version if they get this far, and the package
object will never be NULL either.
The one case calling this from outside the backend was in add.c, where
we forced a full load of a package before we duplicated it. Move this
concern elsewhere and have pkg_dup() always force a full package load
via a new force_load() function on the operations callback struct.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Some of these are legit (the backup hash NULL checks), while others are
either extemely unlikely or just impossible for the static code
analysis to prove, but are worth adding anyway because they have little
overhead.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Modifying prefix caused tmp directories to be left behind after
running scriptlets, and the path '/' to be passed to _alpm_rmrf. Broken
in f01c6f.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This avoids, probably among other things, leaving the lock file in place
after a SIGINT'd sync DB update.
Fixes regression introduced in 4f8ae2b.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This matches the naming in pacman.conf.
Signed-off-by: Allan McRae <allan@archlinux.org>
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The following function renames take place for the same reasoning as
the previous commit:
_alpm_grp_new -> _alpm_group_new
_alpm_grp_free -> _alpm_group_free
_alpm_db_free_grpcache -> _alpm_db_free_groupcache
_alpm_db_get_grpfromcache -> _alpm_db_get_groupfromcache
Signed-off-by: Allan McRae <allan@archlinux.org>
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