Don't write to the text console if we don't need to.

[netwatch.git] / watcher / watcher.c

diff --git a/watcher/watcher.c b/watcher/watcher.c
index 7427c5e3cb3e5abdda777ebb00e9d9764dcb8c6d..65d79965908165180d577fa2d2b8e8c8e1ebdbae 100644 (file)
--- a/watcher/watcher.c
+++ b/watcher/watcher.c
@@ -73,8 +73,6 @@ void out(char *buf, unsigned short start)
       last = col;
       if (c == 0)
        c = ' ';
-      if (!isprint(c))
-        c = 'X';
       printf("%c", c);
       fflush(stdout);
     }
@@ -120,6 +118,21 @@ void send_text(char *d, int len)
                perror("sendto");
 }
 
+void send_reboot() {
+       frame f;
+       struct sockaddr_ll addr;
+
+       memcpy(f.header, "\x00\xb0\xd0\x97\xbc\xac\x00\x03\x93\x87\x84\x8C\x13\x38", 14);
+       f.datalen = 0;
+       f.cmd = 0xFE;
+       addr.sll_family = AF_PACKET;
+       addr.sll_ifindex = 2;
+       addr.sll_halen = 0;
+
+       if (sendto(sendsock, &f, sizeof(frame), 0, (struct sockaddr *)&addr, sizeof(addr)) < sizeof(frame))
+               perror("sendto");
+}
+
 void handler (u_char * user, const struct pcap_pkthdr *h, const u_char *bytes)
 {
        netwatch_frame * f = (netwatch_frame *) bytes;
@@ -148,6 +161,25 @@ void handler (u_char * user, const struct pcap_pkthdr *h, const u_char *bytes)
                        pcap_breakloop(pcap);
                if (c == '\r') c = '\n';
                if (c == 127) c = '\b';
+               if (c == 0x1B)
+               {
+                       /* Escape */
+                       c = getchar();
+                       if (c == '[')
+                       {
+                               c = getchar();
+                               if (c == 'A')
+                                       c = 0x82;
+                               if (c == 'B')
+                                       c = 0x83;
+                               if (c == 'D')
+                                       c = 0x84;
+                               if (c == 'C')
+                                       c = 0x85;
+                               if (c == '4')
+                                       send_reboot();
+                       }
+               }
 
                char ch = c;
                send_text(&ch, 1);