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2019-05-15Add SPDX-License-Identifier: LGPL-2.1-only to filesRichard Purdie24-24/+48
This adds SPDX license headers to all source files in pseudo so license identification models current best practise. Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-01-20Fix openat flag #ifdef typopseudo-1.9.0PSEUDO_1_9_0Seebs1-1/+1
Whoops, missed this one. Reported/submitted by <joshua.g.lock@linux.intel.com>. Signed-off-by: Seebs <seebs@seebs.net>
2018-01-16Handle long lines in /etc/groupSeebs1-15/+39
This allows the pseudo /etc/group to contain extremely long lines, e.g. when a group has a lot of members. Without this, chown and chgrp fail for group names that occur after such long lines. Signed-off-by: Zoltán Böszörményi <zboszor@pr.hu> Signed-off-by: Seebs <seebs@seebs.net> --- ports/darwin/guts/getgrouplist.c | 54 +++++++++++++++++++++++++++----------- ports/linux/guts/getgrouplist.c | 54 +++++++++++++++++++++++++++----------- ports/uids_generic/guts/getgrent.c | 26 +++++++++++++++--- ports/uids_generic/guts/getgrgid.c | 26 +++++++++++++++--- ports/uids_generic/guts/getgrnam.c | 25 +++++++++++++++--- 5 files changed, 146 insertions(+), 39 deletions(-)
2015-09-03Finish (I hope) working around 0700 umasks.Peter Seebach1-1/+1
There's some changes to allow things to work even if umask is 0700; originally this was just regarded as a broken state, but it became necessary to fix it in order for the xattrdb code to work, only the fix could result in files having a raw filesystem mode that lacked execute bits it should have had. Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
2015-08-24xattrdb bug fixesPeter Seebach1-0/+1
When xattr emulation is used to store extended attributes, dummy entries get made in the db using whatever UID/GID were in the real stat buffer if no entry already existed. Change these to -1, and treat -1 uid/gid as a missing entry for stat purposes. xattrdb was not merging existing uid/gid values. Change this by loading existing values to merge them in when executing chown/chmod commands. Newly-created files could end up with a filesystem mode of 0 if you used umask, but this breaks xattrdb. Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
2015-08-21New option: Use extended attributes to store db values.Peter Seebach1-1/+1
This is a moderately experimental feature which stores values in an extended attribute called 'user.pseudo_data' instead of in the database. Still missing: Database<->filesystem synchronization for this. For at least some workloads, this can dramatically improve performance. Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
2015-08-20Initial profiling implementation.Peter Seebach1-1/+2
A partially-implemented profiler for client time, which basically just inserts (optional) gettimeofday calls in various places and stashes data in a flat file containing one data block per pid. Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
2014-07-10make xattr work on DarwinSeebs10-39/+355
More complicated, because we actually need to make com.apple stuff work probably.
2014-05-27Honor umaskPeter Seebach1-0/+3
We used to rely on filesystem operations to apply the umask when appropriate, but when we started masking out 022, that stopped working. Start watching umask.
2013-06-25Change debugging to use flags rather than levelsPeter Seebach2-4/+4
This is a moderately intrusive change. The basic overall effect: Debugging messages are now controlled, not by a numeric "level", but by a series of flags, which are expressed as a string of letters. Each flag has a single-letter form used for string specifications, a name, a description, a numeric value (1 through N), and a flag value (which is 1 << the numeric value). (This does mean that no flag has the value 1, so we only have 31 bits available. Tiny violins play.) The other significant change is that the pseudo_debug calls are now implemented with a do/while macro containing a conditional, so that computationally-expensive arguments are never evaluated if the corresponding debug flags weren't set. The assumption is that in the vast majority of cases (specifically, all of them so far) the debug flags for a given call are a compile-time constant, so the nested conditional will never actually show up in code when compiled with optimization; we'll just see the appropriate conditional test. The VERBOSE flag is magical, in that if the VERBOSE flag is used in a message, the debug flags have to have both VERBOSE and at least one other flag for the call to be made. This should dramatically improve performance for a lot of cases without as much need for PSEUDO_NDEBUG, and improve the ability of users to get coherent debugging output that means something and is relevant to a given case. It's also intended to set the stage for future development work involving improving the clarity and legibility of pseudo's diagnostic messages in general. Old things which used numeric values for PSEUDO_DEBUG will sort of continue to work, though they will almost always be less verbose than they used to. There should probably be a pass through adding "| PDBGF_CONSISTENCY" to a lot of the messages that are specific to some other type.
2013-02-17Darwin fixes for fsync changes, uninitialized variablePeter Seebach2-0/+14
Darwin's off_t is a 64-bit type, so there's no off64_t. Also, there's an uninitialized variable usage in unlinkat which LLVM catches. Signed-off-by: Peter Seebach <peter.seebach@windriver.com>
2013-02-16allow pseudo to force asynchronous behaviorPeter Seebach1-1/+4
The openembedded build, at least with RPM or SMART, is heavily affected by the cost of calling fsync or fdatasync on package databases all the time. Gosh, wouldn't it be nice if we could suppress that without making dozens of highly intrusive and risky changes into RPM, various database packages, and so on? Yes, yes it would. If only there were a program which could intercept system calls and change their behavior! Enter --enable-force-async. There are now wrappers for fsync, fdatasync, and a few related functions. If --enable-force-async is set, these wrappers instantly return 0, even if PSEUDO_DISABLED is set. And with any luck, bitbake will now perform a bit better. Credit for this insight goes to Richard Purdie. I've reimplemented this to add the configure option, and make the fsync suppression work even when PSEUDO_DISABLED is set.
2012-12-12bitrot and linkat() fixes for Darwin.SEEBS_TESTINGPeter Seebach1-1/+1
2012-12-12add linkat() implementationPeter Seebach1-0/+3
We never had an implementation for linkat() because no one used it; now someone uses it. link() is now implemented on top of linkat(). Note the abnormal AT_SYMLINK_FOLLOW (as opposed to _NOFOLLOW) flag.
2012-08-02Remove the _plain thing, use PSEUDO_STATBUF everywhere.Peter Seebach2-5/+3
The _plain thing was added because of clashes between Linux ("struct stat64 for 64-bit file sizes") and Darwin ("struct stat is already 64 bits"). But it turns out not to be enough, because stat will *fail* if it cannot represent a file size, so when something like unlinkat() calls a non-64-bit stat in order to determine whether a file exists, it gets the wrong answer if the file is over 2GB in size. Solution: Continue using PSEUDO_STATBUF, and also provide defines for base_stat() which can be either real_stat() or real_stat64(), etcetera. This eliminates any reason to need the _plain functions. It also suggests that the other real___fxstatat() calls should someday go away because that is an ugly, ugly, implementation detail. As part of testing this, fix up some bitrot which affected Darwin (such as the continue outside of a loop, but inside an #ifdef; that was left over from the conversion of init_one_wrapper to a separate function).
2011-05-31Change logic on file creation/chmod so that we only secretly mask inPeter Seebach1-4/+6
the 0100 bit for directories. The reason is that otherwise we create plain files which are 0700 on disk, which means they're non-zero &0111, which breaks euidaccess(X_OK).
2011-03-25Make subports/preports executable.Peter Seebach2-0/+0
2011-03-25Merge in ports workPeter Seebach24-0/+761
This is a spiffied-up rebase of a bunch of intermediate changes, presented as a whole because it is, surprisingly, less confusing that way. The basic idea is to separate the guts code into categories ranging from generic stuff that can be the same everywhere and specific variants. The big scary one is the Darwin support, which actually seems to run okay on 64-bit OS X 10.6. (No other variants were tested.) The other example given is support for the old clone() syscall on RHEL 4, which affects some wrlinux use cases. There's a few minor cleanup bits here, such as a function with inconsistent calling conventions, but nothing really exciting.