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path: root/lib/libalpm/util.c
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2013-03-14Save and restore old locale when manipulating via setlocaleDan McGee
We shouldn't assume a frontend program didn't explicitly set the LC_TIME setting to a value not in the environment, which is what we previously assumed. Save the old locale before forcing the 'C' locale and restore it when we are done. Signed-off-by: Dan McGee <dan@archlinux.org> Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-29Use libarchive compat header for relevant symbolsDave Reisner
Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-28add caller prefix to alpm_logactionAndrew Gregory
prefix defaults to "UNKOWN" if null or an empty string is provided. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com> Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-28Make path to ldconfig configurableAllan McRae
The FHS (2.3) says having ldconfig in /sbin is optional and it is usually located in /usr/sbin. So /sbin/ldconfig should not be hard coded in pacman. Instead, provide a configure option --with-ldconfig that defaults to the current path. Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-28Revert execvp and related commitsAllan McRae
This reverts commit 4a8c2852a887d2b1aaa43be3071ab586eb24b9e3. This reverts commit 993700bc6b12cd291544d2a22845f480e8a7925e. This reverts commit bb4d2b72c1d35ab9d65d632be0dcaf00cfa7d600. This reverts commit 60b192e3836a150eb6950ce52241efebbee00f11. Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-17Do not use full path for ldconfigAllan McRae
The ldconfig binary is not guaranteed to be in /sbin. Change to calling just "ldconfig" rather than using the full path. This removed the check that the ldconfig binary exists. However, it is a reasonable assumption that it will exist if its configuration file does. Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-17Use execvp for running programs in chrootAllan McRae
This makes us more robust to utilities changing paths. There is no functional change when a full path is specified. Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-04Fix space between control structure and open parensGerardo Exequiel Pozzi
Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar> Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-04Fix missing spaces in operatorsGerardo Exequiel Pozzi
Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar> Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-04Split common utility functions for libalpm and pacmanAllan McRae
There is duplicated code in the util.c files in the libalpm and pacman source code. Split this into a separate file so that it can be shared via a symlink. This prevents code divergence between the two code bases. Also, move mbasename and mdirname from pacman/util.c into util-common.c in preparation for the following patch that uses them to add an extension to pacsave files. Signed-off-by: Allan McRae <allan@archlinux.org>
2013-01-03Update copyright year for 2013Allan McRae
Signed-off-by: Allan McRae <allan@archlinux.org>
2012-08-07coding style fixesFlorian Pritz
Signed-off-by: Florian Pritz <bluewind@xinu.at> Signed-off-by: Dan McGee <dan@archlinux.org>
2012-08-01util: fix line length calc in _alpm_archive_fgetsDave Reisner
74274b5dc347ba70 which added the real_line_size to the buffer struct didn't properly account for what happens when archive_fgets has to loop more than once to find the end of a line. In most cases, this isn't a problem, but could potentially cause a longer line such as PGP signature to be improperly read. This patch fixes the oversight and focuses on only calculating the line length when we hit the end of line marker. The effective length is then calculated via pointer arithmetic as: (start_of_last_read + read_length) - start_of_line Signed-off-by: Dave Reisner <dreisner@archlinux.org>
2012-06-25add line length parameter to _alpm_strip_newlineDave Reisner
If known, callers can pass the line size to this function in order to avoid an strlen call. Otherwise, they simply pass 0 and _alpm_strip_newline will do the call instead. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
2012-06-25add real_line_size to alpm_read_bufferDave Reisner
We inevitably call strlen() or similar on the line returned from _alpm_archive_fgets(), so include the line size of the interesting line in the struct. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
2012-04-29Convert ALLOC_FAIL macro into a functionDan McGee
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>
2012-04-08Various tweaks to support building with excessive GCC warning flagsDan McGee
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>
2012-03-08Remove _alpm_csumAllan McRae
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>
2012-02-20Use "mode" in _alpm_makepath_modeAllan McRae
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>
2012-02-20util: reduce pointer hell in _alpm_makepath_modeDave Reisner
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>
2012-02-13Reset errno before opening archiveAllan McRae
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>
2012-02-13use _alpm_access in a few more places for increased debugging infoFlorian Pritz
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>
2012-01-23Remove rmrf implementation from backendDan McGee
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>
2012-01-23Merge branch 'maint'Dan McGee
Conflicts: lib/libalpm/diskspace.c src/pacman/util.h
2012-01-18Update copyright on changed files since beginning of yearDan McGee
Signed-off-by: Dan McGee <dan@archlinux.org>
2012-01-18util.c, rmrf(): only create string when neededOlivier Brunel
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>
2012-01-18Use isdigit() rather than character range comparisonsDan McGee
This is safer and guaranteed to work with even exotic character sets. Signed-off-by: Dan McGee <dan@archlinux.org>
2012-01-08Fix segfaults on opening invalid archive filesDan McGee
"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>
2011-12-31Simplify hash function to a single multiplicationDan McGee
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>
2011-12-23Remove strtrim function from backendDan McGee
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>
2011-12-21Created hex_representation() in lib/libalpm/util.cDiogo Sousa
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>
2011-12-21include config.h via MakefilesDave Reisner
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>
2011-12-12code syntax cleanupDave Reisner
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>
2011-12-07Merge branch 'maint'Dan McGee
2011-12-05Use correct size in memsetDan McGee
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>
2011-11-30Merge branch 'maint'Dan McGee
2011-11-30_alpm_ldconfig: return value from _alpm_run_chrootDan McGee
Signed-off-by: Dan McGee <dan@archlinux.org>
2011-11-22added doxygen documentationandrew.gregory.8@gmail.com
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>
2011-11-16Add helper method for creating and opening archive objectDan McGee
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>
2011-11-13add support for back end fnmatch'd optionsDave Reisner
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>
2011-11-07Merge branch 'maint'Dan McGee
2011-11-01Fix thinko in _alpm_strip_newlineDan McGee
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>
2011-11-01libalpm/util: don't use sprintf to convert from bin to hexDan McGee
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>
2011-11-01libalpm/util: use low-level I/O for copyfile and checksum routinesDan McGee
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>
2011-11-01Add OPEN() and CLOSE() util macrosDan McGee
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>
2011-11-01Merge branch 'maint'Dan McGee
2011-10-27Introduce ALPM_BUFFER_SIZE constantDan McGee
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>
2011-10-26libalpm/util: two stat() related cleanupsDan McGee
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>
2011-10-13Fix some strict 32-bit gcc warningsDan McGee
Signed-off-by: Dan McGee <dan@archlinux.org>
2011-10-12_alpm_archive_fgets: optimize EOL searchDan McGee
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>
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