I'm writing user-level code on a high performance computer (IBM Blue
Gene). The OS is missing some system calls, including fork/exec. I was
hoping to use busybox to fill in some functionality, maybe like this:
ret = bb_system("ls -l foo*");
E.g., I would need to build all the commands into the shell, and then
call the shell itself using a library function, instead of the usual
fork/exec (or system(3)) call.
I've been studying the busybox config system, mailing list archives,
and code architecture. It seems like most of the parts are there, but
I don't see any way to put together a busybox system that can be called
from user code without fork/exec. Am I missing something?
Thanks,
Lee Busby
Livermore National Lab
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