From: lm@mcvoy.com (Larry McVoy)
Subject: [TUHS] Sockets and the true UNIX
Date: Thu, 21 Sep 2017 09:17:44 -0700 [thread overview]
Message-ID: <20170921161744.GD25650@mcvoy.com> (raw)
In-Reply-To: <201709211613.v8LGDcuN015299@darkstar.fourwinds.com>
On Thu, Sep 21, 2017 at 09:13:38AM -0700, Jon Steinhart wrote:
> Maybe this is naive of me, but I have never liked parts of the sockets
> interface. I understand that at some level it was a political/legal
> keeping the networking code independent of the rest of the kernel.
> >From a technical and historical standpoint, I view it as the tip of
> the iceberg bloating the number of system calls.
>
> In particular, I have often thought that it would have been a better
> and more consistent with the philosophy to have it implemented as
> open("/dev/tcp") and so on. Granted that networking added some new
> functionality that justified some of the system calls, just not socket().
If you look in the lmbench code I sort of had similar thoughts but did
them as functions. I've never been fond of the socket API though I
am sympathetic, it's easy to do the easy parts as /dev/tcp but as I
recall there are all sorts of weird cases that don't fit. I've tried
to come up with a /dev/tcp style that covers all the cases and I failed.
lib_tcp.h
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
int tcp_server(int prog, int rdwr);
int tcp_done(int prog);
int tcp_accept(int sock, int rdwr);
int tcp_connect(char *host, int prog, int rdwr);
void sock_optimize(int sock, int rdwr);
int sockport(int s);
#ifndef NO_PORTMAPPER
u_short pmap_getport(struct sockaddr_in *addr, u_long prognum, u_long versnum,
u_int protocol);
bool_t pmap_set(u_long prognum, u_long versnum, u_long protocol, u_short port);
bool_t pmap_unset(u_long prognum, u_long versnum);
#endif
next prev parent reply other threads:[~2017-09-21 16:17 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-21 16:01 Ian Zimmerman
2017-09-21 16:07 ` Chet Ramey
2017-09-21 16:10 ` Larry McVoy
2017-09-21 16:20 ` David Edmondson
2017-09-21 16:25 ` Clem Cole
2017-09-21 16:27 ` Larry McVoy
2017-09-21 16:37 ` [TUHS] Sockets and the true UNIX [ actually carping about streams ] Jon Steinhart
2017-09-21 18:26 ` [TUHS] Sockets and the true UNIX Chet Ramey
2017-09-21 16:13 ` Jon Steinhart
2017-09-21 16:17 ` Larry McVoy [this message]
2017-09-21 20:36 ` Chris Torek
2017-09-21 18:56 ` Bakul Shah
2017-09-21 19:13 ` Steve Simon
2017-09-21 19:31 ` Bakul Shah
2017-09-21 20:15 ` ron minnich
2017-09-21 20:34 ` Clem Cole
2017-09-21 23:26 ` Dave Horsfall
[not found] <mailman.1105.1506026200.3779.tuhs@minnie.tuhs.org>
2017-09-22 10:36 ` Paul Ruizendaal
2017-09-22 14:32 ` Clem Cole
2017-09-22 14:42 ` Chet Ramey
2017-09-22 14:47 ` Chet Ramey
2017-09-22 14:52 ` Lars Brinkhoff
2017-09-22 14:49 ` Larry McVoy
2017-09-22 14:57 ` Chet Ramey
2017-09-22 18:14 ` Chris Torek
2017-09-22 18:43 ` Clem Cole
2017-09-22 19:08 ` Chet Ramey
2017-09-22 20:57 ` Chris Torek
2017-09-24 18:04 ` Chet Ramey
2017-09-22 18:00 ` Chris Torek
2017-09-25 17:57 Norman Wilson
2017-09-25 18:55 ` Clem Cole
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