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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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* Add lckpwdf/ulckpwdf to guts/README
* Remove arguments from function pointer arguments.
While in theory the compar function pointer has always taken
"const struct dirent **", some systems (many) have declared
it instead as taking "const void *". For now, just omit
the types; a pointer to function taking unknown arguments
is a compatible type, and we never call the functions, we
just pass them to something else.
* Handle readlinkat() on systems without *at functions
* Fix pseudo_etc_file (spotted by "fortify")
When O_CREAT can be a flag, 0600 mode is needed. While we're
at it, remove a bogus dummy open.
* Fix mkdtemp()
Was returning the address of the internal buffer rather than the
user-provided buffer. Also fixed a typo in an error message.
* Don't call fgetgrent_r() with a null FILE *.
* A couple of other typo-type fixes.
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Corporate policy is that each module should have a copyright notice.
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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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Add chroot() and a large number of things needed to make it work.
The list of intercepted calls is large but not exhaustive.
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Peter Seebach
Peter Seebach