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2011-08-19Rework finding a writable cache directoryDan McGee1-15/+29
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>
2011-08-18Remove usages of alpm_list_next() in backendDan McGee1-2/+2
Another function call that can be replaced by a single pointer dereference. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-08-15Validate the sha256sum if availableDan McGee1-19/+26
Adjust load_internal() to check the sha256sum value if we have it. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-08-15Add ALPM sha256sum routinesDan McGee1-0/+80
These mirror ones we already have for md5sums. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-08-09Don't walk off front of string when stripping newlineDan McGee1-1/+1
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>
2011-08-08_alpm_access(): don't call gettext() in debug level loggersDan McGee1-4/+8
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>
2011-08-02Don't trim whitespace when reading database entriesDan McGee1-0/+20
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>
2011-07-18add _alpm_access() wrapperFlorian Pritz1-0/+47
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>
2011-07-18Handle removal of empty directories properlyDan McGee1-0/+42
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>
2011-07-02Prefix _alpm_errno_t members with ALPMAllan McRae1-2/+2
Signed-off-by: Allan McRae <allan@archlinux.org>
2011-07-02Prefix alpm_transevt_t members with ALPMAllan McRae1-1/+1
Signed-off-by: Allan McRae <allan@archlinux.org>
2011-07-02Prefix alpm_loglevel_t members with ALPMAllan McRae1-25/+25
Signed-off-by: Allan McRae <allan@archlinux.org>
2011-06-30Merge remote-tracking branch 'allan/breakshit'Dan McGee1-7/+7
2011-06-30lib/util: modify entry_prefix, not prefixDave Reisner1-1/+1
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>
2011-06-28Rename pmhandle_t to alpm_handle_tAllan McRae1-7/+7
Signed-off-by: Allan McRae <allan@archlinux.org>
2011-06-27Fix several -Wshadow warningsDan McGee1-9/+9
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>
2011-06-24Make sync DB reading a bit more flexibleDan McGee1-19/+27
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>
2011-06-24archive_fgets(): ensure we return any trailing text with no newlineDan McGee1-6/+12
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>
2011-06-20Clean up util md5sum methodDan McGee1-2/+1
Signed-off-by: Dan McGee <dan@archlinux.org>
2011-06-13Switch all logging to use handle directlyDan McGee1-26/+25
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>
2011-06-13Move pm_errno onto the handleDan McGee1-26/+28
This involves some serious changes and a very messy diff, unfortunately. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-06-09Require handle argument to all alpm_option_(get|set)_*() methodsDan McGee1-5/+7
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>
2011-06-09Require handle argument to alpm_logaction()Dan McGee1-7/+7
This is the first in a series of patches to update the API to remove the implicit global handle variable. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-06-09_alpm_lstat: only duplicate string if necessaryDan McGee1-7/+8
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>
2011-06-07Add helper methods for setting directory optionsDan McGee1-3/+7
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>
2011-06-03Use standard errno codes in return from _alpm_archive_fgetsDan McGee1-4/+3
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>
2011-06-03Remove global handle from util.cDan McGee1-12/+11
Signed-off-by: Dan McGee <dan@archlinux.org>
2011-06-03Push down extern handle variable to files that need itDan McGee1-0/+3
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>
2011-06-03Remove ALPM_LOG_FUNC macroDan McGee1-6/+0
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>
2011-04-20Header inclusion cleanupDan McGee1-1/+0
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>
2011-04-20syntax: if/while statements should have no trailing spaceDan McGee1-7/+7
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>
2011-04-20style cleanup: cast as (type *) not (type*)Dave Reisner1-2/+2
Signed-off-by: Dave Reisner <d@falconindy.com> Signed-off-by: Dan McGee <dan@archlinux.org>
2011-04-05Merge branch 'maint'Dan McGee1-0/+1
Conflicts: lib/libalpm/be_sync.c lib/libalpm/db.c src/pacman/util.c
2011-04-02util.c: include limits.h for PATH_MAX macroRémy Oudompheng1-0/+1
Signed-off-by: Rémy Oudompheng <remy@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
2011-03-23Merge branch 'maint'Dan McGee1-0/+3
2011-03-21Fix line_offset not being reset in _alpm_archive_fgets()Dan McGee1-0/+3
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>
2011-03-20Style change: return(x) --> return xDan McGee1-44/+44
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>
2011-02-28Fix some easy to find double translationsDan McGee1-3/+4
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>
2011-02-28Move locking functions to where they are neededDan McGee1-40/+0
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>
2011-02-27Fix double close of the lock fileJonathan Conder1-4/+3
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>
2011-02-04Add more error checking and loggingDan McGee1-1/+1
Signed-off-by: Dan McGee <dan@archlinux.org>
2011-02-04Ensure found files are actually filesDan McGee1-1/+2
We located files in a few places but didn't check if they were files or directories. Ensure they are actually files using stat() and S_ISREG(); this showed itself when trying to download to the directory name itself in FS#22645. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-02-01Fix locale.h/setlocale inclusion with --disable-nlsDan McGee1-2/+3
Noted in FS#22697. When I factored out _alpm_parsedate() into a common function, I didn't move the <locale.h> include properly, causing a build failure when NLS is disabled and this header isn't automatically included everywhere. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-01-21Improve splitname memory allocationDan McGee1-14/+13
We don't need to create a temporary copy of the string if we are smart with our pointer manipulation and string copying. This saves a bunch of string duplication during database parsing, both local and sync. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-01-21Add strndup fallback function to libalpm utilDan McGee1-0/+22
The same fallback we are currently using in the pacman frontend. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-01-07Fix some more simple conversion "errors"Dan McGee1-4/+5
None of these warn at the normal "-Wall -Werror" level, but casts do occur that we are fine with. Make them explicit to silence some warnings when using "-Wconversion". Signed-off-by: Dan McGee <dan@archlinux.org>
2011-01-07Refactor old date parsing into single methodDan McGee1-0/+13
We've managed to duplicate this four times at this point, so make it a method in util.c instead. Signed-off-by: Dan McGee <dan@archlinux.org>
2011-01-07Update copyright years for 2011Allan McRae1-1/+1
Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
2011-01-02Fix function indentationDan McGee1-22/+22
Signed-off-by: Dan McGee <dan@archlinux.org>
2010-12-21Overhaul archive fgets functionDan McGee1-22/+78
The old function was written in a time before we relied on it for nearly every operation. Since then, we have switched to the archive backend and now fast parsing is a big deal. The former function made a per-character call to the libarchive archive_read_data() function, which resulted in some 21 million calls in a typical "load all sync dbs" operation. If we instead do some buffering of our own and read the blocks directly, and then find our newlines from there, we can cut out the multiple layers of overhead and go from archive to parsed data much quicker. Both users of the former function are switched over to the new signature, made easier by the macros now in place in the sync backend parsing code. Performance: for a `pacman -Su` (no upgrades available), _alpm_archive_fgets() goes from being 29% of the total time to 12% The time spent on the libarchive function being called dropped from 24% to 6%. This pushes _alpm_pkg_find back to the title of slowest low-level function. Signed-off-by: Dan McGee <dan@archlinux.org>
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