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>
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>
Free "md5sum" if md5_file() fails in alpm_compute_md5sum(). Free
"sha256sum" if sha2_file() fails in alpm_compute_sha256sum().
Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Signed-off-by: Dan McGee <dan@archlinux.org>
There were many cases where the string coming in was a blank line, e.g.
"\n\0", length 1. The trim routine starts by trimming leading spaces,
thus trimming everything. We would then proceed to do a memmove of the
NULL byte, which is completely worthless as we can just assign it
instead.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is a refactor and refresh of the code used to find where we should
download packages.
* Incorporate suggestions from FS#25435 to use TMPDIR from the
environment if set, otherwise fall back to /tmp as before.
* Make the writability tests a bit more in depth. We now do a three part
check consisting of:
- S_ISDIR(): is this even a directory
- access(W_OK): is this directory writable by the current user.
Unfortunately for root, this almost always returns that it is, but
in the case of a RO mount or NFS share inaccessible to root, this
check will exclude the directory.
- mode & (any write bit): is there a writable bit set on this
directory. This makes it possible to enforce a read-only cache
directory by setting permissions to 0555, for example.
Signed-off-by: Dan McGee <dan@archlinux.org>
If the string was zero-length to begin with, or consists of only newline
characters, nothing stopped us from incrementing right off the front of
the string. Ensure len stays above zero the whole time.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is standard procedure elsewhere and cuts down on translations that
won't be seen (and we don't want if we need English debug output
anyway).
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 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>
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>
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>
Only one of these looked like a real red flag, in find_requiredby(), but
it doesn't hurt to fix several of them up anyway.
Unfortunately, we can't turn this on universally due to things like the
sync(), remove(), etc. builtins which we often use as variable names.
Signed-off-by: Dan McGee <dan@archlinux.org>
We can reorganize things a bit to not require reading a directory-only
entry first (or at all). This was noticed while working on some pactest
improvements, but should be a good step forward anyway.
Also make _alpm_splitname() a bit more generic in where it stores the
data it parses.
Signed-off-by: Dan McGee <dan@archlinux.org>
Discovered this when doing some pactest rewrite work to generate
archives in memory only. If a sync database file or PKGINFO file is
missing a newline on the final line, the text from that line gets tossed
aside and never read into the package struct. This is pretty critical
when that last line is a depend or something.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is the last user of our global handle object. Once again the diff
is large but the functional changes are not.
Signed-off-by: Dan McGee <dan@archlinux.org>
This requires a lot of line changes, but not many functional changes as
more often than not our handle variable is already available in some
fashion.
Signed-off-by: Dan McGee <dan@archlinux.org>
The vast majority of the time we will just be passing the same string
value on to the lstat() call. The only time we need to duplicate it is
if the path ends in '/'. In one run using a profiler, only 400 of the
200,000 calls (0.2%) required the string to be copied first.
Signed-off-by: Dan McGee <dan@archlinux.org>
This keeps duplicate code to a minimum. This will come in more handy as
we refactor some of these option setters away.
Signed-off-by: Dan McGee <dan@archlinux.org>
This allows us to not require the context (e.g. handle) when calling
this function. Also beef up the checks in the two callers of this
function to bail if the last return code is not ARCHIVE_EOF, which is
the expected value.
This requires a change to one of the pactest return codes and the
overall result of the test, but results in a much safer operating
condition whereby invalid database entries will stop the operation.
Signed-off-by: Dan McGee <dan@archlinux.org>
This will make the patching process less invasive as we start to remove
this variable from all source files.
Signed-off-by: Dan McGee <dan@archlinux.org>
The usefulness of this is rather limited due to it not being compiled
into production builds. When you do choose to see the output, it is
often overwhelming and not helpful. The best bet is to use a debugger
and/or well-placed fprintf() statements.
Signed-off-by: Dan McGee <dan@archlinux.org>
This does touch a lot of things, and hopefully doesn't break things on
other platforms, but allows us to also clean up a bunch of crud that no
longer needs to be there.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is the standard, and we have had a few of these introduced lately
that should not be here.
Done with:
find -name '*.c' | xargs sed -i -e 's#if (#if(#g'
find -name '*.c' | xargs sed -i -e 's#while (#while(#g'
Signed-off-by: Dan McGee <dan@archlinux.org>
This is a rather serious data corruption issue that luckily manifested
itself today in a noticable way. A package in testing had replaces
entries read in as ["%RE pkgname", "%RE"] which was clearly wrong. This
happens when we hit the end of an archive block, do not have a newline,
and have to continue reading from the next block to complete the line.
Signed-off-by: Dan McGee <dan@archlinux.org>
This was discussed and more or less agreed upon on the mailing list. A
huge checkin, but if we just do it and let people adjust the pain will
end soon enough. Rebasing should be relatively straighforward for anyone
that sees conflicts; just be sure you use the new return style if
possible.
The following semantic patch was used to do the change, along with some
hand-massaging in order to preserve parenthesis where appropriate:
The semantic match that finds this problem is as follows, although some
hand-massaging was done in order to keep parenthesis where appropriate:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression a;
@@
- return(a);
+ return a;
// </smpl>
A macros_file was also provided with the following content:
Additional steps taken, mainly for ASSERT() macros:
$ sed -i -e 's#return(NULL)#return NULL#' lib/libalpm/*.c
$ sed -i -e 's#return(-1)#return -1#' lib/libalpm/*.c
Signed-off-by: Dan McGee <dan@archlinux.org>
A lot of these were places that should have used the same message but
didn't, or were very easy to convert to using the same message and
letting some of the burden off of the translators.
Signed-off-by: Dan McGee <dan@archlinux.org>
We only call these from the transaction init and teardown, so move them
to that file, mark them static, and push more of the logic of handle
manipulation into these functions.
Signed-off-by: Dan McGee <dan@archlinux.org>
According to FOPEN(3), using fclose on an fdopen'd file stream also
closes the underlying file descriptor. This happened in _alpm_lckmk
(util.c), which meant that when alpm_trans_release closed it again, the
log file (which reused the original file descriptor) was closed instead.
Signed-off-by: Jonathan Conder <jonno.conder@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
