sysctlbyname

[uslanmaz]

Hi everyone, I have a problem with getting the memory size. when I use the folloeing:
int a=sysctlbyname("hw.physmem", &physmem, &len, NULL, 0);

I get an error saying implicit declaration of function sysctlbyname

(I include sysctl.h) is there any way to get rid of this or any other way to get the memory info in the kernel source code?

Thanks in advance.

[Ole]

sys/types.h needed too.

Also you can look this (http://forums.freebsd.org/showthread.php?t=1102&highlight=sysctlbyname)

[uslanmaz]

I include sys/types.h too, but still I have the error

[lyuts]

Can you show this code?

[expl]

Are you trying to include this code into kernel? It will not work, its part of libc(userland).