X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/971bcc0afc69f7e754285167e88885c8893d0229..a4451dd11df30dc2d0d262dd6c36642aa2a02b91:/raw.c

diff --git a/raw.c b/raw.c
index e7a159cd..b4b1108f 100644
--- a/raw.c
+++ b/raw.c
@@ -1,3 +1,7 @@
+/*
+ * "Raw" backend.
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 
@@ -29,7 +33,23 @@ static void c_write(Raw raw, char *buf, int len)
     sk_set_frozen(raw->s, backlog > RAW_MAX_BACKLOG);
 }
 
-static int raw_closing(Plug plug, char *error_msg, int error_code,
+static void raw_log(Plug plug, int type, SockAddr addr, int port,
+		    const char *error_msg, int error_code)
+{
+    Raw raw = (Raw) plug;
+    char addrbuf[256], *msg;
+
+    sk_getaddr(addr, addrbuf, lenof(addrbuf));
+
+    if (type == 0)
+	msg = dupprintf("Connecting to %s port %d", addrbuf, port);
+    else
+	msg = dupprintf("Failed to connect to %s: %s", addrbuf, error_msg);
+
+    logevent(raw->frontend, msg);
+}
+
+static int raw_closing(Plug plug, const char *error_msg, int error_code,
 		       int calling_back)
 {
     Raw raw = (Raw) plug;
@@ -37,6 +57,7 @@ static int raw_closing(Plug plug, char *error_msg, int error_code,
     if (raw->s) {
         sk_close(raw->s);
         raw->s = NULL;
+	notify_remote_exit(raw->frontend);
     }
     if (error_msg) {
 	/* A socket error has occurred. */
@@ -67,17 +88,19 @@ static void raw_sent(Plug plug, int bufsize)
  * Also places the canonical host name into `realhost'. It must be
  * freed by the caller.
  */
-static char *raw_init(void *frontend_handle, void **backend_handle,
-		      Config *cfg,
-		      char *host, int port, char **realhost, int nodelay)
+static const char *raw_init(void *frontend_handle, void **backend_handle,
+			    Config *cfg,
+			    char *host, int port, char **realhost, int nodelay,
+			    int keepalive)
 {
     static const struct plug_function_table fn_table = {
+	raw_log,
 	raw_closing,
 	raw_receive,
 	raw_sent
     };
     SockAddr addr;
-    char *err;
+    const char *err;
     Raw raw;
 
     raw = snew(struct raw_backend_data);
@@ -92,13 +115,18 @@ static char *raw_init(void *frontend_handle, void **backend_handle,
      */
     {
 	char *buf;
-	buf = dupprintf("Looking up host \"%s\"", host);
+	buf = dupprintf("Looking up host \"%s\"%s", host,
+			(cfg->addressfamily == ADDRTYPE_IPV4 ? " (IPv4)" :
+			 (cfg->addressfamily == ADDRTYPE_IPV6 ? " (IPv6)" :
+			  "")));
 	logevent(raw->frontend, buf);
 	sfree(buf);
     }
-    addr = name_lookup(host, port, realhost, cfg);
-    if ((err = sk_addr_error(addr)) != NULL)
+    addr = name_lookup(host, port, realhost, cfg, cfg->addressfamily);
+    if ((err = sk_addr_error(addr)) != NULL) {
+	sk_addr_free(addr);
 	return err;
+    }
 
     if (port < 0)
 	port = 23;		       /* default telnet port */
@@ -106,20 +134,11 @@ static char *raw_init(void *frontend_handle, void **backend_handle,
     /*
      * Open socket.
      */
-    {
-	char *buf, addrbuf[100];
-	sk_getaddr(addr, addrbuf, 100);
-	buf = dupprintf("Connecting to %s port %d", addrbuf, port);
-	logevent(raw->frontend, buf);
-	sfree(buf);
-    }
-    raw->s = new_connection(addr, *realhost, port, 0, 1, nodelay,
+    raw->s = new_connection(addr, *realhost, port, 0, 1, nodelay, keepalive,
 			    (Plug) raw, cfg);
     if ((err = sk_socket_error(raw->s)) != NULL)
 	return err;
 
-    sk_addr_free(addr);
-
     return NULL;
 }
 
@@ -190,10 +209,10 @@ static const struct telnet_special *raw_get_specials(void *handle)
     return NULL;
 }
 
-static Socket raw_socket(void *handle)
+static int raw_connected(void *handle)
 {
     Raw raw = (Raw) handle;
-    return raw->s;
+    return raw->s != NULL;
 }
 
 static int raw_sendok(void *handle)
@@ -234,6 +253,14 @@ static int raw_exitcode(void *handle)
         return 0;
 }
 
+/*
+ * cfg_info for Raw does nothing at all.
+ */
+static int raw_cfg_info(void *handle)
+{
+    return 0;
+}
+
 Backend raw_backend = {
     raw_init,
     raw_free,
@@ -243,12 +270,15 @@ Backend raw_backend = {
     raw_size,
     raw_special,
     raw_get_specials,
-    raw_socket,
+    raw_connected,
     raw_exitcode,
     raw_sendok,
     raw_ldisc,
     raw_provide_ldisc,
     raw_provide_logctx,
     raw_unthrottle,
-    1
+    raw_cfg_info,
+    "raw",
+    PROT_RAW,
+    0
 };