Hi John,
Thanks a lot for this fast reply. One more quick question i don't see
any function socket(int,int,int) in uipc_syscalls.c though i see
sys_socket function in this file. From what i understand socket libraby
function should call trap which should call syscall function which in
turn should call this sys_socket function. What i am looking for is the
source code for this libraby function socket() whose prototype is
defined in socket.h. I tried using cscope on the source files and i
could not locate it through that also.
Thanks
Regards
Shankar
John Gregor wrote:
>
> > I am trying to find out where the function socket() is actually defined.
>
> sys/kern/uipc_syscalls.c
>
> cscope is your friend.
>
> > Moreover is see __P with all the function prototypes. Can anyone
> > tell me what do they mean. I am right now assuming for my work that
> > they just mean blank.
>
> Bad assumption. Depending on the compiler, __P either returns the
> argument passed to the macro or '()'. This is because pre-ANSI C
> didn't support function prototypes.
>
> pre-ANSI
>
> int foo();
>
> ANSI
>
> int foo(char *, int *, int, int);
>
> Again, cscope is your friend.
>
> -JohnG
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