Is busybox available in shared library form?

Question

Is busybox available in shared library form? I would like to use individual apps programmatically instead of using system(). I've heard about libbusybox and libbb but could not find any documentation.

Answer 1

There exists busybox library in a shared form called libbusybox(.so), you just have to enable it while making menuconfig. When you have compiled, it will be avalible in 0_lib folder. In this library you have nice little function called int lbb_main(char **argv).

What you need to do in your code is something like this:

extern int lbb_main(char **argv);

int main()
{
    char* strarray[] = {"ifconfig",0};
    lbb_main(strarray);

    return 1;
}

You could import libb.h, but that didn't work for me, because I got many errors.

After that you just have to compile using somethin like gcc -o code code.c -Lpath_to_0_lib_fodler -lbusyboxand that's it!

To intercept output you will have to redefine printf and similar calls, buts that's clearly doable by using soemthing macros like #define printf(...) code' inlibb.h'.

You could even spawn busybox's shell that doesn't use fork or system, but that doesn't work well yet.