From 09e95b1a00a127a0af3fe146f4648cb0a3cda389 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Tue, 10 Nov 2009 14:52:56 +0000
Subject: first working version with return data from switch


diff --git a/switchctl.c b/switchctl.c
index 9650674..d7a7002 100644
--- a/switchctl.c
+++ b/switchctl.c
@@ -299,14 +299,13 @@ int process_cmd(const char* cmd, int fd, cmd_t **cmd_q, client_t* client_lst, op
   return 0;
 }
 
-int process_switch(int switch_fd)
+int process_switch(read_buffer_t* buffer, int switch_fd, cmd_t **cmd_q, client_t* client_lst)
 {
   int ret = 0;
   struct timeval tv;
   fd_set fds;
   FD_ZERO(&fds);
   FD_SET(switch_fd, &fds);
-  char buf[1];
 
   for(;;) {
     tv.tv_sec = 0;
@@ -317,13 +316,53 @@ int process_switch(int switch_fd)
     else if(ret < 0)
       return ret;
 
-    ret = read(switch_fd, buf, 1);
+    ret = read(switch_fd, &buffer->buf[buffer->offset], 1);
     if(!ret)
       return 2;
     if(ret == -1 && errno == EAGAIN)
       return 0;
     else if(ret < 0)
       break;
+
+    if(buffer->buf[buffer->offset] == '\n') {
+      buffer->buf[buffer->offset] = 0;
+
+      if(buffer->offset > 0 && buffer->buf[buffer->offset-1] == '\r')
+        buffer->buf[buffer->offset-1] = 0;
+
+      log_printf(NOTICE, "switch-firmware: %s", buffer->buf);
+
+      int cmd_fd = -1;
+      if(cmd_q && (*cmd_q)) {
+        cmd_fd = (*cmd_q)->fd;
+        send_response(cmd_fd, buffer->buf);
+      }
+      
+      if(!strncmp(buffer->buf, "S0L", 3)) {
+        client_t* client;
+        int listener_cnt = 0;
+        for(client = client_lst; client; client = client->next)
+          if(client->status_listener && client->fd != cmd_fd) {
+            send_response(client->fd, buffer->buf);
+            listener_cnt++;
+          }
+        log_printf(DEBUG, "sent status to %d additional listeners", listener_cnt);
+      }
+
+      if((!strncmp(buffer->buf, "RRR", 3)) || 
+         (!strncmp(buffer->buf, "EEE", 3)))
+        cmd_pop(cmd_q);
+
+      buffer->offset = 0;
+      return 0;
+    }
+
+    buffer->offset++;
+    if(buffer->offset >= sizeof(buffer->buf)) {
+      log_printf(DEBUG, "string too long (fd=%d)", switch_fd);
+      buffer->offset = 0;
+      return 0;
+    }
   }
 
   return ret;
@@ -341,6 +380,9 @@ int main_loop(int switch_fd, int cmd_listen_fd, options_t* opt)
   cmd_t* cmd_q = NULL;
   client_t* client_lst = NULL;
 
+  read_buffer_t switch_buffer;
+  switch_buffer.offset = 0;
+
   int sig_fd = signal_init();
   if(sig_fd < 0)
     return -1;
@@ -379,7 +421,7 @@ int main_loop(int switch_fd, int cmd_listen_fd, options_t* opt)
     }
    
     if(FD_ISSET(switch_fd, &tmpfds)) {
-      return_value = process_switch(switch_fd);
+      return_value = process_switch(&switch_buffer, switch_fd, &cmd_q, client_lst);
       if(return_value)
         break;
     }
@@ -532,7 +574,7 @@ int main(int argc, char* argv[])
     if(switch_fd < 0)
       ret = 2;
     else {
-      ret = setup_tty(switch_fd, B9600);
+      ret = setup_tty(switch_fd, B19200);
       if(ret)
         ret = 2;
       else
-- 
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