From 62bc1af6c6a1201db551e1ec523e757415464fd5 Mon Sep 17 00:00:00 2001
From: root <root@nolonger-other.tetra.james.local>
Date: Sun, 25 Oct 2020 13:26:29 +0000
Subject: tidy up, make less awful

---
 rx.c | 208 -------------------------------------------------------------------
 1 file changed, 208 deletions(-)
 delete mode 100644 rx.c

(limited to 'rx.c')

diff --git a/rx.c b/rx.c
deleted file mode 100644
index a02c964..0000000
--- a/rx.c
+++ /dev/null
@@ -1,208 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-
-
-void poll (int fd)
-{
-}
-
-int valid_fn (unsigned char fn)
-{
-  switch (fn) {
-  case 0x30:
-  case 0x31:
-  case 0x32:
-  case 0x33:
-  case 0x34:
-  case 0x35:
-  case 0x36:
-  case 0x37:
-  case 0x38:
-  case 0x08:
-  case 0x39:
-  case 0x09:
-  case 0x43:
-  case 0x45:
-  case 0x4E:
-  case 0x4F:
-  case 0x50:
-  case 0x40:
-  case 0x3F:
-  case 0x23:
-  case 0x26:
-  case 0x41:
-  case 0x58:
-  case 0x4C:
-  case 0x56:
-  case 0x76:
-  case 0x49:
-    return 1;
-  }
-
-  return 0;
-}
-
-
-void ack (int fd)
-{
-  char buf[3];
-
-  buf[0] = 0;
-  buf[1] = 0x38;
-  buf[2] = 0xff ^ buf[0] ^ buf[1];
-
-  write (fd, buf, sizeof (buf));
-
-}
-
-
-void msg (char *account, char *event, char *ascii)
-{
-  printf ("%s %64s %s\n", account, event, ascii);
-}
-
-
-int rx_pkt (int fd, unsigned char *pkt, unsigned len)
-{
-  unsigned char parity = 0xff;
-  unsigned i;
-
-  static char account[65];
-  static char event[65];
-  static char ascii[65];
-
-
-
-  for (i = 0; i < len; ++i)
-    parity ^= pkt[i];
-
-  if (parity) return -1;
-
-  len--;
-
-
-  switch (pkt[1]) {
-  case 0x23:
-    memcpy (account, &pkt[2], len - 2);
-    account[len - 2] = 0;
-    break;
-
-  case 0x4e:
-  case 0x4f:
-    memcpy (event, &pkt[2], len - 2);
-    event[len - 2] = 0;
-    break;
-
-  case 0x41:
-    memcpy (ascii, &pkt[2], len - 2);
-    ascii[len - 2] = 0;
-
-    msg (account, event, ascii);
-    break;
-  }
-
-
-  if (pkt[0] & 0x40) ack (fd);
-
-  return 0;
-}
-
-
-
-int rx (int fd)
-{
-  static unsigned char pkt[67];
-  static unsigned ptr;
-  unsigned char byte;
-  unsigned len;
-
-  if (read (fd, &byte, 1) != 1) {
-    ptr = 0;
-    return -1;
-  }
-
-  pkt[ptr++] = byte;
-
-  if (ptr > 2 && !valid_fn (pkt[1])) {
-    ptr = 0;
-    return 0;
-  }
-
-  len = pkt[0] & 0x3f;
-
-  if (ptr == (len + 3)) {
-    ptr = 0;
-    return rx_pkt (fd, pkt, len + 3);
-  }
-
-  return 0;
-}
-
-
-int main (int argc, char *argv)
-{
-  struct sockaddr_in sin;
-  struct timeval tv = {0};
-  int rc;
-  int fd;
-  int afd = -1;
-  fd_set rfds;
-  fd_set wfds;
-
-
-  fd = socket (PF_INET, SOCK_STREAM, 0);
-
-  sin.sin_family = AF_INET;
-  sin.sin_port = htons (10002);
-  sin.sin_addr.s_addr = INADDR_ANY;
-
-  bind (fd, (struct sockaddr *)&sin, sizeof (sin));
-
-  listen (fd, 5);
-
-  tv.tv_sec = 5;
-
-  FD_ZERO (&wfds);
-
-  for (;;) {
-
-    FD_ZERO (&rfds);
-
-    FD_SET (fd, &rfds);
-
-    if (afd > 0)
-      FD_SET (afd, &rfds);
-
-    rc = select (afd > fd ? afd + 1 : fd + 1, &rfds, &wfds, NULL, &tv);
-
-    if ((!rc)  && (afd > 0)) poll (afd);
-
-
-    if (FD_ISSET (fd, &rfds)) {
-      if (afd > 0) close (afd);
-
-      afd = accept (fd, NULL, NULL);
-    }
-
-    if ((afd > 0) && (FD_ISSET (afd, &rfds))) {
-      if (rx (afd)) {
-        close (afd);
-        afd = -1;
-      }
-    }
-
-    if (!tv.tv_sec && !tv.tv_usec)
-      tv.tv_sec = 5;
-
-
-
-
-  }
-}
-
-- 
cgit v1.2.3