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path: root/lib/libalpm/util.c
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* Convert ALLOC_FAIL macro into a functionDan McGee2012-04-29
| | | | | | | | | | | | | This path is rarely (read: never) taken in any normal run of the code, so injecting the fprintf() call everywhere with the macro is a bit overkill. Instead, add a lightweight _alpm_alloc_fail() function that gets called instead. This does have a reasonable effect on the size of the generated code; most places using the macros provided by util.c have their code size reduced. Signed-off-by: Dan McGee <dan@archlinux.org>
* Various tweaks to support building with excessive GCC warning flagsDan McGee2012-04-08
| | | | | | | | | This fixes a bunch of small issues in order to enable a clean successful build with a crazy number of GCC warning flags. A lot of these changes are covered by -Wshadow, -Wformat-security, and -Wstrict-overflow=5. Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove _alpm_csumAllan McRae2012-03-08
| | | | | | | The enum alpm_pkgvalidation_t is essentially a more generic version of _alpm_csum, so use it instead. Signed-off-by: Allan McRae <allan@archlinux.org>
* Use "mode" in _alpm_makepath_modeAllan McRae2012-02-20
| | | | | | | | It seems that if we pass the permissions that we want the created directory to have, then we should probably use it... Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* util: reduce pointer hell in _alpm_makepath_modeDave Reisner2012-02-20
| | | | | | | | | | | | Simplify the implementation: - allocate and manipulate a copy of the passed in path rather than building out a path as the while loop progresses - use simple pointer arithmetic to skip uninteresting cases - use mkdir(3)'s return value and errno to detect failure Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* Reset errno before opening archiveAllan McRae2012-02-13
| | | | | | | | | | | | | | | | | | | Set errno to 0 at the start of _alpm_open_archive as it is not set when archive_read_open_fd fails. This can result in _alpm_pkg_load_internal thinking errno == ENOENT and setting the wrong pm_errno. e.g. Before: > testpkg pacman-4.0.1-4-i686.pkg.tar.gz.sig error: could not open file pacman-4.0.1-4-i686.pkg.tar.gz.sig: Unrecognized archive format Cannot find the given file. After: > testpkg pacman-4.0.1-4-i686.pkg.tar.gz.sig error: could not open file pacman-4.0.1-4-i686.pkg.tar.gz.sig: Unrecognized archive format Cannot open the given file. Signed-off-by: Allan McRae <allan@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* use _alpm_access in a few more places for increased debugging infoFlorian Pritz2012-02-13
| | | | | | | | | | | | | pacman -U <pkg> returns a bogus "could not find or read package" if the file is on a fuse file system that doesn't allow root access. Debug output isn't very helpful here either so we should log why the access check failed. The other 2 checks already log something when failing so logging a more specific error won't hurt either. Signed-off-by: Florian Pritz <bluewind@xinu.at> Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove rmrf implementation from backendDan McGee2012-01-23
| | | | | | | | | This moves the code for removal of local database entries right into be_local.c, which was the last user of the rmrf() function we had in our utility source file. We can simplify the implementation and make it non-recursive as we know the structure of the local database entries. Signed-off-by: Dan McGee <dan@archlinux.org>
* Merge branch 'maint'Dan McGee2012-01-23
|\ | | | | | | | | | | Conflicts: lib/libalpm/diskspace.c src/pacman/util.h
| * Update copyright on changed files since beginning of yearDan McGee2012-01-18
| | | | | | | | Signed-off-by: Dan McGee <dan@archlinux.org>
| * util.c, rmrf(): only create string when neededOlivier Brunel2012-01-18
| | | | | | | | | | | | | | | | The entry's name is only used when not "." or ".." so only print the string then. Signed-off-by: Olivier Brunel <i.am.jack.mail@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
| * Use isdigit() rather than character range comparisonsDan McGee2012-01-18
| | | | | | | | | | | | This is safer and guaranteed to work with even exotic character sets. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Fix segfaults on opening invalid archive filesDan McGee2012-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "invalid" in this case simply means files that may or may not be archives. Discovered via a `pacman -Sc` operation with delta files in the package cache directory, but can be triggered if any file is passed to `pacman -Ql` that isn't an archive, for instance, or if the sync database file is not an archive. Fix it up so we are more careful about calling archive_read_finish() only on archives that are valid and have not already been closed, and teach our archive open function to set the returned archive to NULL if we aren't going to be returning something valid anyway. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Simplify hash function to a single multiplicationDan McGee2011-12-31
| | | | | | | | | | | | | | | | | | | | More than likely the compiler will do the three operation breakdown we had here before (2 shifts + subtraction), but let the compiler do the optimizations and make the actual operation more obvious. This actually slightly shrinks the function binary size, likely due to instruction reordering or something. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Remove strtrim function from backendDan McGee2011-12-23
| | | | | | | | | | | | | | The last user of this was the code in the backend for loading packages, but this no longer uses it. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Created hex_representation() in lib/libalpm/util.cDiogo Sousa2011-12-21
| | | | | | | | | | | | | | Used in alpm_compute_md5sum() and alpm_compute_sha256sum(). Signed-off-by: Diogo Sousa <diogogsousa@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* | include config.h via MakefilesDave Reisner2011-12-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensures that config.h is always ordered correctly (first) in the includes. Also means that new source files get this for free without having to remember to add it. We opt for -imacros over -include as its more portable, and the added constraint by -imacros doesn't bother us for config.h. This also touches the HACKING file to remove the explicit mention of config.h as part of the includes. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | code syntax cleanupDave Reisner2011-12-12
| | | | | | | | | | | | | | As per HACKING file, we use 'CTRL(' rather than 'CTRL (' Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
* | Merge branch 'maint'Dan McGee2011-12-07
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| * Use correct size in memsetDan McGee2011-12-05
| | | | | | | | | | | | | | | | We were using the size of a pointer, not the size of the whole archive_read_buffer struct. Thanks to Clang/LLVM 3.0 and Allan/Dave in IRC for finding this one. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Merge branch 'maint'Dan McGee2011-11-30
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| * _alpm_ldconfig: return value from _alpm_run_chrootDan McGee2011-11-30
| | | | | | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* | added doxygen documentationandrew.gregory.8@gmail.com2011-11-22
| | | | | | | | | | | | | | | | | | Made existing documentation more consistent and added documentation where there was none. One function still needs documentation and is marked with 'TODO'. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* | Add helper method for creating and opening archive objectDan McGee2011-11-16
| | | | | | | | | | | | | | | | | | | | | | | | | | This moves the common setup code of about 5 different callers into one method. Error messages will now be common and shared in all places; several paths did not have any messages at all before. In addition, we now pick an ideal block size for the archive read based off the larger value of our default buffer size or the st.st_blksize field. For a filesystem such as NFS, this is often much larger than the default 8192- values such as 32768 and 131072 are common. Signed-off-by: Dan McGee <dan@archlinux.org>
* | add support for back end fnmatch'd optionsDave Reisner2011-11-13
| | | | | | | | | | | | | | | | | | | | | | | | | | This is work originally provided by Sascha Kruse on FS#20360 with only minor adjustments to the implementation. It's been expanded to cover: NoUpgrade, NoExtract, IgnorePkg, IgnoreGroup. Adds tests ignore008, sync139, sync502, and sync503. Also satisfies FS#18988. Original-work-by: Sascha Kruse <knopwob@googlemail.com> Signed-off-by: Dave Reisner <dreisner@archlinux.org>
* | Merge branch 'maint'Dan McGee2011-11-07
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| * Fix thinko in _alpm_strip_newlineDan McGee2011-11-01
| | | | | | | | | | | | | | | | | | The point of this early compare to NULL byte check was so we could bail early and skip the strcmp() call. Given we weren't doing the check right, this never exited early. Fix it to work as intended. Noticed-by: Pepe Juárez <trulustapa@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
* | libalpm/util: don't use sprintf to convert from bin to hexDan McGee2011-11-01
| | | | | | | | | | | | | | This is a trivial operation that doesn't require calling a function over and over- just do some math and indexing into a character array. Signed-off-by: Dan McGee <dan@archlinux.org>
* | libalpm/util: use low-level I/O for copyfile and checksum routinesDan McGee2011-11-01
| | | | | | | | | | | | | | | | This removes an unnecessary level of buffering. We are not doing line-based I/O here, so we can read in blocks of 8K at a time directly from the file. Signed-off-by: Dan McGee <dan@archlinux.org>
* | Add OPEN() and CLOSE() util macrosDan McGee2011-11-01
| | | | | | | | | | | | | | 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>
* | Merge branch 'maint'Dan McGee2011-11-01
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| * Introduce ALPM_BUFFER_SIZE constantDan McGee2011-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | libalpm/util: two stat() related cleanupsDan McGee2011-10-26
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | Fix some strict 32-bit gcc warningsDan McGee2011-10-13
| | | | | | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* | _alpm_archive_fgets: optimize EOL searchDan McGee2011-10-12
| | | | | | | | | | | | | | | | | | 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>
* | Introduce alpm_time_t typeDan McGee2011-10-12
| | | | | | | | | | | | | | | | | | | | 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>
* | _alpm_parsedate: use strtoll() to parse numeric valueDan McGee2011-10-12
|/ | | | | | | | 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>
* Parse '0' as a valid package installed sizeDan McGee2011-10-04
| | | | | | This was a bad oversight on my part, pointed out by Jakob. Whoops. Signed-off-by: Dan McGee <dan@archlinux.org>
* Use the full buffer when computing md5/sha256 sumsDan McGee2011-09-28
| | | | | | | | | | | | | | | No wonder these were slower than expected. We were only reading 4 (32-bit) or 8 (64-bit) bytes at a time and feeding it to the hash functions. Define a buffer size constant and use it correctly so we feed 8K at a time into the hashing algorithm. This cut one larger `-Sw --noconfirm` operation, with nothing to actually download so only timing integrity, from 3.3s to 1.7s. This has been broken since the original commit eba521913d6 introducing OpenSSL usage for crypto hash functions. Boy do I feel stupid. Signed-off-by: Dan McGee <dan@archlinux.org>
* Remove all usages of alpm_list_getdata() from the libraryDan McGee2011-09-20
| | | | | | No need for the indirection; just access ->data instead. Signed-off-by: Dan McGee <dan@archlinux.org>
* Use more efficient way of restoring working directoryDan McGee2011-09-19
| | | | | | | | | | | | 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>
* Ensure entire struct is zeroed in _alpm_parsedate()Dan McGee2011-09-18
| | | | | Signed-off-by: Dan McGee <dan@archlinux.org> Signed-off-by: Dave Reisner <dreisner@archlinux.org>
* avoid blowing out the filecache list when using tmpdirDave Reisner2011-09-06
| | | | | | | | | | | | | | | | _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 e07547ee4ed4, 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>
* Former transaction callback rename refactorDan McGee2011-09-02
| | | | | | | | | | | | | 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>
* Move all callbacks up to the handle levelDan McGee2011-09-02
| | | | | | | | | 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>
* _alpm_parsedate(): return time_t and not longDan McGee2011-09-01
| | | | Signed-off-by: Dan McGee <dan@archlinux.org>
* Parse > 2GiB file sizes correctlyDan McGee2011-08-29
| | | | | | | | | | | | | | | | | | | | | | 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>
* lib/libalpm/util.c: Fix two memory leaksLukas Fleischer2011-08-28
| | | | | | | | 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>
* strtrim: don't move empty stringDan McGee2011-08-25
| | | | | | | | | | 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>
* Rework finding a writable cache directoryDan McGee2011-08-19
| | | | | | | | | | | | | | | | | | | | 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>
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