plink: updated to revision 10170 of putty

1 files changed, 94 insertions, 227 deletions

diff --git a/tools/plink/winproxy.c b/tools/plink/winproxy.c
index 7a8c7b69b..aa14b91ae 100644
--- a/tools/plink/winproxy.c
+++ b/tools/plink/winproxy.c
@@ -1,227 +1,94 @@
-/*

- * winproxy.c: Windows implementation of platform_new_connection(),

- * supporting an OpenSSH-like proxy command via the winhandl.c

- * mechanism.

- */

-

-#include <stdio.h>

-#include <assert.h>

-

-#define DEFINE_PLUG_METHOD_MACROS

-#include "tree234.h"

-#include "putty.h"

-#include "network.h"

-#include "proxy.h"

-

-typedef struct Socket_localproxy_tag *Local_Proxy_Socket;

-

-struct Socket_localproxy_tag {

-    const struct socket_function_table *fn;

-    /* the above variable absolutely *must* be the first in this structure */

-

-    HANDLE to_cmd_H, from_cmd_H;

-    struct handle *to_cmd_h, *from_cmd_h;

-

-    char *error;

-

-    Plug plug;

-

-    void *privptr;

-};

-

-int localproxy_gotdata(struct handle *h, void *data, int len)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) handle_get_privdata(h);

-

-    if (len < 0) {

-	return plug_closing(ps->plug, "Read error from local proxy command",

-			    0, 0);

-    } else if (len == 0) {

-	return plug_closing(ps->plug, NULL, 0, 0);

-    } else {

-	return plug_receive(ps->plug, 0, data, len);

-    }

-}

-

-void localproxy_sentdata(struct handle *h, int new_backlog)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) handle_get_privdata(h);

-    

-    plug_sent(ps->plug, new_backlog);

-}

-

-static Plug sk_localproxy_plug (Socket s, Plug p)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-    Plug ret = ps->plug;

-    if (p)

-	ps->plug = p;

-    return ret;

-}

-

-static void sk_localproxy_close (Socket s)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-

-    handle_free(ps->to_cmd_h);

-    handle_free(ps->from_cmd_h);

-    CloseHandle(ps->to_cmd_H);

-    CloseHandle(ps->from_cmd_H);

-

-    sfree(ps);

-}

-

-static int sk_localproxy_write (Socket s, const char *data, int len)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-

-    return handle_write(ps->to_cmd_h, data, len);

-}

-

-static int sk_localproxy_write_oob(Socket s, const char *data, int len)

-{

-    /*

-     * oob data is treated as inband; nasty, but nothing really

-     * better we can do

-     */

-    return sk_localproxy_write(s, data, len);

-}

-

-static void sk_localproxy_write_eof(Socket s)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-

-    handle_write_eof(ps->to_cmd_h);

-}

-

-static void sk_localproxy_flush(Socket s)

-{

-    /* Local_Proxy_Socket ps = (Local_Proxy_Socket) s; */

-    /* do nothing */

-}

-

-static void sk_localproxy_set_private_ptr(Socket s, void *ptr)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-    ps->privptr = ptr;

-}

-

-static void *sk_localproxy_get_private_ptr(Socket s)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-    return ps->privptr;

-}

-

-static void sk_localproxy_set_frozen(Socket s, int is_frozen)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-

-    /*

-     * FIXME

-     */

-}

-

-static const char *sk_localproxy_socket_error(Socket s)

-{

-    Local_Proxy_Socket ps = (Local_Proxy_Socket) s;

-    return ps->error;

-}

-

-Socket platform_new_connection(SockAddr addr, char *hostname,

-			       int port, int privport,

-			       int oobinline, int nodelay, int keepalive,

-			       Plug plug, Conf *conf)

-{

-    char *cmd;

-

-    static const struct socket_function_table socket_fn_table = {

-	sk_localproxy_plug,

-	sk_localproxy_close,

-	sk_localproxy_write,

-	sk_localproxy_write_oob,

-	sk_localproxy_write_eof,

-	sk_localproxy_flush,

-	sk_localproxy_set_private_ptr,

-	sk_localproxy_get_private_ptr,

-	sk_localproxy_set_frozen,

-	sk_localproxy_socket_error

-    };

-

-    Local_Proxy_Socket ret;

-    HANDLE us_to_cmd, us_from_cmd, cmd_to_us, cmd_from_us;

-    SECURITY_ATTRIBUTES sa;

-    STARTUPINFO si;

-    PROCESS_INFORMATION pi;

-

-    if (conf_get_int(conf, CONF_proxy_type) != PROXY_CMD)

-	return NULL;

-

-    cmd = format_telnet_command(addr, port, conf);

-

-    {

-	char *msg = dupprintf("Starting local proxy command: %s", cmd);

-	/* We're allowed to pass NULL here, because we're part of the Windows

-	 * front end so we know logevent doesn't expect any data. */

-	logevent(NULL, msg);

-	sfree(msg);

-    }

-

-    ret = snew(struct Socket_localproxy_tag);

-    ret->fn = &socket_fn_table;

-    ret->plug = plug;

-    ret->error = NULL;

-

-    /*

-     * Create the pipes to the proxy command, and spawn the proxy

-     * command process.

-     */

-    sa.nLength = sizeof(sa);

-    sa.lpSecurityDescriptor = NULL;    /* default */

-    sa.bInheritHandle = TRUE;

-    if (!CreatePipe(&us_from_cmd, &cmd_to_us, &sa, 0)) {

-	ret->error = dupprintf("Unable to create pipes for proxy command");

-	return (Socket)ret;

-    }

-

-    if (!CreatePipe(&cmd_from_us, &us_to_cmd, &sa, 0)) {

-	CloseHandle(us_from_cmd);

-	CloseHandle(cmd_to_us);

-	ret->error = dupprintf("Unable to create pipes for proxy command");

-	return (Socket)ret;

-    }

-

-    SetHandleInformation(us_to_cmd, HANDLE_FLAG_INHERIT, 0);

-    SetHandleInformation(us_from_cmd, HANDLE_FLAG_INHERIT, 0);

-

-    si.cb = sizeof(si);

-    si.lpReserved = NULL;

-    si.lpDesktop = NULL;

-    si.lpTitle = NULL;

-    si.dwFlags = STARTF_USESTDHANDLES;

-    si.cbReserved2 = 0;

-    si.lpReserved2 = NULL;

-    si.hStdInput = cmd_from_us;

-    si.hStdOutput = cmd_to_us;

-    si.hStdError = NULL;

-    CreateProcess(NULL, cmd, NULL, NULL, TRUE,

-		  CREATE_NO_WINDOW | NORMAL_PRIORITY_CLASS,

-		  NULL, NULL, &si, &pi);

-

-    sfree(cmd);

-

-    CloseHandle(cmd_from_us);

-    CloseHandle(cmd_to_us);

-

-    ret->to_cmd_H = us_to_cmd;

-    ret->from_cmd_H = us_from_cmd;

-

-    ret->from_cmd_h = handle_input_new(ret->from_cmd_H, localproxy_gotdata,

-				       ret, 0);

-    ret->to_cmd_h = handle_output_new(ret->to_cmd_H, localproxy_sentdata,

-				      ret, 0);

-

-    /* We are responsible for this and don't need it any more */

-    sk_addr_free(addr);

-

-    return (Socket) ret;

-}

+/*
+ * winproxy.c: Windows implementation of platform_new_connection(),
+ * supporting an OpenSSH-like proxy command via the winhandl.c
+ * mechanism.
+ */
+
+#include <stdio.h>
+#include <assert.h>
+
+#define DEFINE_PLUG_METHOD_MACROS
+#include "tree234.h"
+#include "putty.h"
+#include "network.h"
+#include "proxy.h"
+
+Socket make_handle_socket(HANDLE send_H, HANDLE recv_H, Plug plug,
+                          int overlapped);
+
+Socket platform_new_connection(SockAddr addr, char *hostname,
+			       int port, int privport,
+			       int oobinline, int nodelay, int keepalive,
+			       Plug plug, Conf *conf)
+{
+    char *cmd;
+    HANDLE us_to_cmd, us_from_cmd, cmd_to_us, cmd_from_us;
+    SECURITY_ATTRIBUTES sa;
+    STARTUPINFO si;
+    PROCESS_INFORMATION pi;
+
+    if (conf_get_int(conf, CONF_proxy_type) != PROXY_CMD)
+	return NULL;
+
+    cmd = format_telnet_command(addr, port, conf);
+
+    /* We are responsible for this and don't need it any more */
+    sk_addr_free(addr);
+
+    {
+	char *msg = dupprintf("Starting local proxy command: %s", cmd);
+	/* We're allowed to pass NULL here, because we're part of the Windows
+	 * front end so we know logevent doesn't expect any data. */
+	logevent(NULL, msg);
+	sfree(msg);
+    }
+
+    /*
+     * Create the pipes to the proxy command, and spawn the proxy
+     * command process.
+     */
+    sa.nLength = sizeof(sa);
+    sa.lpSecurityDescriptor = NULL;    /* default */
+    sa.bInheritHandle = TRUE;
+    if (!CreatePipe(&us_from_cmd, &cmd_to_us, &sa, 0)) {
+	Socket ret =
+            new_error_socket("Unable to create pipes for proxy command", plug);
+        sfree(cmd);
+	return ret;
+    }
+
+    if (!CreatePipe(&cmd_from_us, &us_to_cmd, &sa, 0)) {
+	Socket ret =
+            new_error_socket("Unable to create pipes for proxy command", plug);
+        sfree(cmd);
+	CloseHandle(us_from_cmd);
+	CloseHandle(cmd_to_us);
+	return ret;
+    }
+
+    SetHandleInformation(us_to_cmd, HANDLE_FLAG_INHERIT, 0);
+    SetHandleInformation(us_from_cmd, HANDLE_FLAG_INHERIT, 0);
+
+    si.cb = sizeof(si);
+    si.lpReserved = NULL;
+    si.lpDesktop = NULL;
+    si.lpTitle = NULL;
+    si.dwFlags = STARTF_USESTDHANDLES;
+    si.cbReserved2 = 0;
+    si.lpReserved2 = NULL;
+    si.hStdInput = cmd_from_us;
+    si.hStdOutput = cmd_to_us;
+    si.hStdError = NULL;
+    CreateProcess(NULL, cmd, NULL, NULL, TRUE,
+		  CREATE_NO_WINDOW | NORMAL_PRIORITY_CLASS,
+		  NULL, NULL, &si, &pi);
+    CloseHandle(pi.hProcess);
+    CloseHandle(pi.hThread);
+
+    sfree(cmd);
+
+    CloseHandle(cmd_from_us);
+    CloseHandle(cmd_to_us);
+
+    return make_handle_socket(us_to_cmd, us_from_cmd, plug, FALSE);
+}