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The *at() functions take a flags argument which, if set, says not
to follow symlinks. By default, this is passed to pseudo_root_path.
But the open() functions take a flags argument which is unrelated,
and should not be used by default.
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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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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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* Improve makewrappers handling of function pointer arguments.
* Regenerate wrappers when makewrappers is touched.
* Move path resolution from pseudo_client_op into wrapper
functions.
* Eliminate dependency on PATH_MAX.
* Related cleanup, such as tracking CWD better, and using
the tracked value for getcwd().
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Peter Seebach