[indiana-discuss] "no scripting zone" and isaexec(3C) == architectural

[UNIX admin]

> One solution is to create a little program that
>  utilizes the
> isaexec API and accepts a pathname to an
>  executable.
>   See  isaexec(3C).

Thanks Moinak.

I did exactly what you told me, and it worked, except that I replicated /usr/lib/isaexec functionality.
As it turns out, a hard link is needed because of getexecname(3C), as follows:

return(isaexec(getexecname(), argv, envp));

getexecname(3C) follows a symbolic link, so isaexec(3C) now has a wrong argument for *path.

If I were to follow this approach, a small program with either a hardcoded path

return(isaexec("/opt/abcd/bin/bla", argv, envp));

would have to be compiled for every single binary of every single product I deliver (think of it as one copy of isaexec(3C) per binary), or I would use one such "isaexec" in /opt/abcd/lib, but then I'm back to the hard links cannot span filesystems problem.

Finally, a third approach would be to build my own parser similar to getexecname(3C), which would return the name of the symbollic link instead of the name of the target file, but this would require path reconstruction in order to pass to isaexec(3C) correctly.

Any other ideas?
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