On 2008-02-25 21:23, a arcadia <[EMAIL PROTECTED]> wrote:
> This is likely a silly question but where exactly is the source for
> connect? Under /usr/src/lib/libc/sys there is connect.2 but no
> connect.c, or any other socket functions for that matter.
It is a system call. The userlevel part of system calls is,
traditionally, only a very thin wrapper around their kernel
counterparts.
If you look at `/usr/src/sys/kern/syscalls.master' you can see a line
which maps the connect(2) system call to the connect() kernel function:
% 98 AUE_CONNECT STD { int connect(int s, caddr_t name, \
% int namelen); }
The connect() function itself is easy to locate in src/sys/kern:
% [EMAIL PROTECTED]:/usr/src/sys/kern$ grep -n '^connect' *.c
% uipc_syscalls.c:501:connect(td, uap)
% [EMAIL PROTECTED]:/usr/src/sys/kern$
This is the entry point of the connect(2) system call. Things go on
from this point into the network stack & protocol support code.
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