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This fixes the following valgrind warning :
==26831== Syscall param rt_sigaction(act->sa_flags) points to uninitialised
byte(s)
==26831== at 0x4282547: __libc_sigaction (in /lib/libc-2.10.1.so)
==26831== by 0x403C693: download_internal (dload.c:152)
==26831== by 0x403D0E4: _alpm_download_single_file (dload.c:311)
==26831== by 0x4033B72: alpm_db_update (be_files.c:319)
==26831== by 0x805205E: pacman_sync (sync.c:257)
==26831== by 0x804EE54: main (pacman.c:1120)
==26831== Address 0xbec6cc04 is on thread 1's stack
==26831==
==26831== Syscall param rt_sigaction(act->sa_restorer) points to
uninitialised byte(s)
==26831== at 0x4282547: __libc_sigaction (in /lib/libc-2.10.1.so)
==26831== by 0x403C693: download_internal (dload.c:152)
==26831== by 0x403D0E4: _alpm_download_single_file (dload.c:311)
==26831== by 0x4033B72: alpm_db_update (be_files.c:319)
==26831== by 0x805205E: pacman_sync (sync.c:257)
==26831== by 0x804EE54: main (pacman.c:1120)
==26831== Address 0xbec6cc08 is on thread 1's stack
==26831==
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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Conflicts:
lib/libalpm/dload.c
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fetchIO_read returns -1 in case of error, and the return type is
ssize_t, not size_t ! So we converted -1 to an unsigned, which led to
huge file write.
The rest is just changing the error return a bit.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Conflicts:
lib/libalpm/dload.c
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- fix one memleak if get_filename failed
- cleanup according to Joerg's feedback:
"url_for_string: If fetchParseURL returned successful, you should always
have a scheme set. The logic for anonftp should only be needed for very
broken server -- do you know of any such?
download_internal:
Specifying 'p' is now a nop -- it is tried by default first with
fall-back to active FTP."
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
[Dan: remove from pacman.conf and pacman.conf.5]
Signed-off-by: Dan McGee <dan@archlinux.org>
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libfetch supports checking mtime so we do not need to do it manually.
when the databases are already up-to-date, initiating a connection with
fetchXGet and closing it right after with fetchIO_close took a very long
time (up to 10min!) on some network.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
(cherry picked from commit d7675e393ff3cecb5408c243898ebaae80c5988d)
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We had 10000 as our timeout value, assuming it was expressed in ms. This is
false after looking at the current code, so reset it back to 10 seconds.
Addresses FS#15369.
Signed-off-by: Dan McGee <dan@archlinux.org>
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I assume the loop was never iterated more than once, because the write
location was not updated at each loop iteration (buffer instead of buffer +
nwritten), yet we never had reports of corrupted download.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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libfetch supports checking mtime so we do not need to do it manually.
when the databases are already up-to-date, initiating a connection with
fetchXGet and closing it right after with fetchIO_close took a very long
time (up to 10min!) on some network.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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After commit 30c4d53ce5c16cbbb17a88fe1ad14faf53d91999, get_destfile and
get_tempfile are only used for internal download, so move these two
functions inside the ifdef
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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This allows a frontend to define its own download algorithm so that the
libfetch dependency can be omitted without using an external process.
The callback will be used when if it is defined, otherwise the old
behavior applies.
Signed-off-by: Sebastian Nowicki <sebnow@gmail.com>
[Dan: minor cleanups]
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 fixes FS#14899. When running an -Sp operation without servers
configured for a repository, we would segfault, so add an assert to the
backend method returning the first server preventing a null pointer
dereference.
In addition, add a new error code to libalpm that indicates we have no
servers configured for a repository. This makes -Sy and -S <package>
operations fail gracefully and helpfully when a repo is set up with no
servers, as the default mirrorlist in Arch is provided this way.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Aaron said to consider libdownload a dead project so libdownload support was
removed to more easily fix libfetch one (otherwise many ifdef needed).
There was no direct replacement for ferror to detect an error while
downloading. So instead, I added a check at the end to see if the file was
fully downloaded, which is just a small chunk of code taken from here:
http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/net/libfetch/files/fetch.c?only_with_tag=MAIN
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Conflicts:
lib/libalpm/dload.c
po/it.po
scripts/makepkg.sh.in
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May help debug issues we come across with proxy behavior (e.g. those pesky
segfaults) as well as be informative to the user when things aren't working
quite right. Addresses FS#12396.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Conflicts:
lib/libalpm/dload.c
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Mostly noticed when compiling libalpm/pacman with ICC.
Signed-off-by: Dan McGee <dan@archlinux.org>
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We don't want a failed write to kill our whole program when we are
downloading things, so set the SIGPIPE handler to ignore when downloading
and restore any previous signal handler when we complete the download.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Use libfetch naming in the code in place of libdownload names. This is in
preparation for dropping support for libdownload at some point as libfetch
can run on Linux.
Signed-off-by: Dan McGee <dan@archlinux.org>
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If a Server specified in pacman.conf had a trailing slash, libalpm ended up
building URLs with double slashes, and this broke libdownload with errors
like the following one :
error: failed retrieving file 'redland-1.0.8-1-i686.pkg.tar.gz'
from 192.168.0.90 : Command okay
So the public function alpm_db_set_server will make sure to remove the
trailing slash of servers. For the private function
_alpm_download_single_file, I only added a comment.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Before commit fc48dc31, file:/// urls forced the use of the internal
downloader (libdownload), because the default XferCommand, wget, does not
handle them. We tried to move away from forcing usage of libdownload, so
this commit implemented the handling of file:/// urls manually. However,
this implementation is way too basic. It does not handle the progress bar,
thus nothing at all appears in pacman's output when a file: repo is
synchronized, or when a file is downloaded from a sync repo. Also, it is not
able to detect when the repo is already up-to-date. When libdownload was
used, both were handled.
It seems better to just drop this implementation for now. All users who use
libdownload will get the much better file:// handling back. For the users of
XferCommand, it will be more problematic, but they have several options:
1) Switch to a downloader handling file:// (wget doesn't, but curl does for
example).
2) Drop the file:// repo, and set up light http or ftp servers instead.
Consider that going that way would make this repo available for the whole
local network, which can be useful.
3) Switch back to libdownload, which works perfectly for many users.
Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
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We have been using unsigned long as a file size type for a while, which
works but isn't quite correct and could easily break. Worse was probably our
use of int in the download callback functions, which could be restrictive
for packages > 2GB in size.
Switch all file size variables to use off_t, which is the preferred type for
file sizes. Note that at least on Linux, all applications compiled against
libalpm must now be sure to use large file support, where _FILE_OFFSET_BITS
is defined to be 64 or there will be some weird issues that crop up.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This should remove the need for any additional patching to run on platforms
that have libfetch available but not libdownload. It isn't the prettiest,
but we have kept our libdownload impact down to just a few files, so it can
be easily done.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Add a new --disable-internal-download flag to configure allowing the
internal download code to be skipped. This will be helpful on platforms that
currently don't support either libdownload or libfetch (such as Cygwin) and
for just compiling a lighter weight pacman binary.
This was made really easy by our recent refactoring of the download code
into separate internal and external functions, as well as some error code
cleanup.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Kill it where it isn't absolutely necessary.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Dan McGee <dan@archlinux.org>
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In the file:// download case, we didn't free the return from get_destfile()
after we were done with it. Fix it. (Found with xfercommand001.py)
Signed-off-by: Dan McGee <dan@archlinux.org>
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This should be the main step in the download refactoring initiated by commit
81a2a06818d367f8528c74311171417beb9e1592.
The stub functions introduced by that commit were implemented.
The big download code was mostly composed of two steps, and so it has been
naturally splitted in two functions : download_external and download_internal
file:/// urls are now handled manually, instead of forcing the use of the
internal downloader.
Thanks to Dan for fixing the remaining issues and cleaning up the patch :)
Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
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I screwed up originally when I accepted the TotalDownload patch,
8ec27835f40e3df1ce409bc3d913587c474a30c3. I didn't realize how deeply it
modified libalpm and I probably shouldn't have let it do what it did. This
commit reverts much of what that patch added in order to clean up our
internal function calls. We can find another way to do it right down the
road here but for now it has to go.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
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Remove what was a pretty weird abstraction in the libalpm backend. Instead
of parsing server URLs as we get them (of which we don't usually use more
than a handful anyway), wait until they are actually used, which allows us
to store them as a simple string list instead. This allows us to remove a
lot of code, and will greatly simplify the continuing refactoring of the
download code.
Signed-off-by: Dan McGee <dan@archlinux.org>
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Add new stub functions that work by calling the existing (terrible) download
forreal function, which needs a serious overhaul. Hide the existing
functions and switch all former users to the new functions.
Signed-off-by: Dan McGee <dan@archlinux.org>
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This is the first in what will be a series of patches to clean up the
current download code in libalpm. Start by moving download code out of
server.c and into download.c.
Signed-off-by: Dan McGee <dan@archlinux.org>
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