[BusyBox] Applets Question

[vda]

On Thursday 09 October 2003 20:15, Karthik M wrote:
> Hi everyone,
>
> I am a newbie to busybox and am trying to understand
> how it works. I read the source code and got the feel
> of how it works overall but have a basic question.
...............
> Inside do_mount() there is a stmt :
>
> status = mount (.....);
>
> i am confused about this above statement and does it
> actually call the systemcall mount ?? , if so how does
> busybox know to invoke the system call as mount in
> this case should again recognize the /bin/mount which
> is symlinked to busybox again ??

You are confused about syscalls, C library calls and binaries.

# mount /dev/hda /mnt - this is binary being started from shell prompt

v=mount(...); - this is C function being called in a C program

I won't present an example of syscall since you most probably will never
need to open code it.
--
vda