Hi
Sorry guys, this question is a little bit off topic, but maybe someone
has an answer, I am sure that there is a simple one. :-)
Ok, I have to find 3 possibilities to create a directory with 3 small c
programs:
1 -> using libc: mkdir(dir,mode)
2 -> using libcsyscall: syscall(__NR_mkdir, "mkdirLibcSyscall", 0777);
3 -> using kernel directly
Ok, the third one is a little bit tricky, at least for me. I found an
example for lseek, but I don't know how to convert that for mkdir. I
don't know the necessary arguments, ..
> #include <linux/unistd.h>
>
> _syscall5(int, _llseek, unsigned int, fd,
> unsigned long, offset_high, unsigned long, offset_low,
> long long *, result, unsigned int, origin)
>
> long long
> my_llseek(unsigned int fd, unsigned long long offset, unsigned int origin) {
> long long result;
> int retval;
>
> retval = _llseek (fd, offset >> 32, offset & 0xffffffff,
> &result, origin);
> return (retval == -1) ? -1 : result;
> }
Any help would be much appreciated. Thxs
regards
peda
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