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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).
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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.
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are generated from text files and templates, making it now (we hope)
impossible for the list of strings to get out of sync with the
enum.
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bug in the speculative-unlink operation.
The intent is to mark and then confirm or cancel the delete. This
removes the quirk where we tried to stash old database entries,
which didn't handle directories anyway; "rmdir non-empty-directory"
is a bit too common a case to dismiss as unthinkable.
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Send program name (program_invocation_name from glibc) along with the
tag.
Along the way, restructure the fds/pids/tags arrays to be an array
of client structures in pseudo_server, and add the message type
to the set of things logged -- logging that a message was a ping is
more useful than appending the text "ping" to it. Add support
for type and program to pseudolog.
Add deletion to pseudolog.
Handle usage message formatting when there's an odd number of known
specifiers for pseudolog.
Conflicts:
ChangeLog.txt
pseudo_server.c
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This patch adds support for checking whether a file was opened for
reading, writing, or both, as well as tracking append flags. It is
not very well tested. This is preparation for improved host
contamination checking.
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Peter Seebach
seebs
Peter Seebach