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-rw-r--r--tools/plink/proxy.h249
1 files changed, 125 insertions, 124 deletions
diff --git a/tools/plink/proxy.h b/tools/plink/proxy.h
index 9e64aadd0..12b47e16d 100644
--- a/tools/plink/proxy.h
+++ b/tools/plink/proxy.h
@@ -1,124 +1,125 @@
-/*
- * Network proxy abstraction in PuTTY
- *
- * A proxy layer, if necessary, wedges itself between the
- * network code and the higher level backend.
- *
- * Supported proxies: HTTP CONNECT, generic telnet, SOCKS 4 & 5
- */
-
-#ifndef PUTTY_PROXY_H
-#define PUTTY_PROXY_H
-
-#define PROXY_ERROR_GENERAL 8000
-#define PROXY_ERROR_UNEXPECTED 8001
-
-typedef struct Socket_proxy_tag * Proxy_Socket;
-
-struct Socket_proxy_tag {
- const struct socket_function_table *fn;
- /* the above variable absolutely *must* be the first in this structure */
-
- char * error;
-
- Socket sub_socket;
- Plug plug;
- SockAddr remote_addr;
- int remote_port;
-
- bufchain pending_output_data;
- bufchain pending_oob_output_data;
- int pending_flush;
- bufchain pending_input_data;
- int pending_eof;
-
-#define PROXY_STATE_NEW -1
-#define PROXY_STATE_ACTIVE 0
-
- int state; /* proxy states greater than 0 are implementation
- * dependent, but represent various stages/states
- * of the initialization/setup/negotiation with the
- * proxy server.
- */
- int freeze; /* should we freeze the underlying socket when
- * we are done with the proxy negotiation? this
- * simply caches the value of sk_set_frozen calls.
- */
-
-#define PROXY_CHANGE_NEW -1
-#define PROXY_CHANGE_CLOSING 0
-#define PROXY_CHANGE_SENT 1
-#define PROXY_CHANGE_RECEIVE 2
-#define PROXY_CHANGE_ACCEPTING 3
-
- /* something has changed (a call from the sub socket
- * layer into our Proxy Plug layer, or we were just
- * created, etc), so the proxy layer needs to handle
- * this change (the type of which is the second argument)
- * and further the proxy negotiation process.
- */
-
- int (*negotiate) (Proxy_Socket /* this */, int /* change type */);
-
- /* current arguments of plug handlers
- * (for use by proxy's negotiate function)
- */
-
- /* closing */
- const char *closing_error_msg;
- int closing_error_code;
- int closing_calling_back;
-
- /* receive */
- int receive_urgent;
- char *receive_data;
- int receive_len;
-
- /* sent */
- int sent_bufsize;
-
- /* accepting */
- OSSocket accepting_sock;
-
- /* configuration, used to look up proxy settings */
- Conf *conf;
-
- /* CHAP transient data */
- int chap_num_attributes;
- int chap_num_attributes_processed;
- int chap_current_attribute;
- int chap_current_datalen;
-};
-
-typedef struct Plug_proxy_tag * Proxy_Plug;
-
-struct Plug_proxy_tag {
- const struct plug_function_table *fn;
- /* the above variable absolutely *must* be the first in this structure */
-
- Proxy_Socket proxy_socket;
-
-};
-
-extern void proxy_activate (Proxy_Socket);
-
-extern int proxy_http_negotiate (Proxy_Socket, int);
-extern int proxy_telnet_negotiate (Proxy_Socket, int);
-extern int proxy_socks4_negotiate (Proxy_Socket, int);
-extern int proxy_socks5_negotiate (Proxy_Socket, int);
-
-/*
- * This may be reused by local-command proxies on individual
- * platforms.
- */
-char *format_telnet_command(SockAddr addr, int port, Conf *conf);
-
-/*
- * These are implemented in cproxy.c or nocproxy.c, depending on
- * whether encrypted proxy authentication is available.
- */
-extern void proxy_socks5_offerencryptedauth(char *command, int *len);
-extern int proxy_socks5_handlechap (Proxy_Socket p);
-extern int proxy_socks5_selectchap(Proxy_Socket p);
-
-#endif
+/*
+ * Network proxy abstraction in PuTTY
+ *
+ * A proxy layer, if necessary, wedges itself between the
+ * network code and the higher level backend.
+ *
+ * Supported proxies: HTTP CONNECT, generic telnet, SOCKS 4 & 5
+ */
+
+#ifndef PUTTY_PROXY_H
+#define PUTTY_PROXY_H
+
+#define PROXY_ERROR_GENERAL 8000
+#define PROXY_ERROR_UNEXPECTED 8001
+
+typedef struct Socket_proxy_tag * Proxy_Socket;
+
+struct Socket_proxy_tag {
+ const struct socket_function_table *fn;
+ /* the above variable absolutely *must* be the first in this structure */
+
+ char * error;
+
+ Socket sub_socket;
+ Plug plug;
+ SockAddr remote_addr;
+ int remote_port;
+
+ bufchain pending_output_data;
+ bufchain pending_oob_output_data;
+ int pending_flush;
+ bufchain pending_input_data;
+ int pending_eof;
+
+#define PROXY_STATE_NEW -1
+#define PROXY_STATE_ACTIVE 0
+
+ int state; /* proxy states greater than 0 are implementation
+ * dependent, but represent various stages/states
+ * of the initialization/setup/negotiation with the
+ * proxy server.
+ */
+ int freeze; /* should we freeze the underlying socket when
+ * we are done with the proxy negotiation? this
+ * simply caches the value of sk_set_frozen calls.
+ */
+
+#define PROXY_CHANGE_NEW -1
+#define PROXY_CHANGE_CLOSING 0
+#define PROXY_CHANGE_SENT 1
+#define PROXY_CHANGE_RECEIVE 2
+#define PROXY_CHANGE_ACCEPTING 3
+
+ /* something has changed (a call from the sub socket
+ * layer into our Proxy Plug layer, or we were just
+ * created, etc), so the proxy layer needs to handle
+ * this change (the type of which is the second argument)
+ * and further the proxy negotiation process.
+ */
+
+ int (*negotiate) (Proxy_Socket /* this */, int /* change type */);
+
+ /* current arguments of plug handlers
+ * (for use by proxy's negotiate function)
+ */
+
+ /* closing */
+ const char *closing_error_msg;
+ int closing_error_code;
+ int closing_calling_back;
+
+ /* receive */
+ int receive_urgent;
+ char *receive_data;
+ int receive_len;
+
+ /* sent */
+ int sent_bufsize;
+
+ /* accepting */
+ accept_fn_t accepting_constructor;
+ accept_ctx_t accepting_ctx;
+
+ /* configuration, used to look up proxy settings */
+ Conf *conf;
+
+ /* CHAP transient data */
+ int chap_num_attributes;
+ int chap_num_attributes_processed;
+ int chap_current_attribute;
+ int chap_current_datalen;
+};
+
+typedef struct Plug_proxy_tag * Proxy_Plug;
+
+struct Plug_proxy_tag {
+ const struct plug_function_table *fn;
+ /* the above variable absolutely *must* be the first in this structure */
+
+ Proxy_Socket proxy_socket;
+
+};
+
+extern void proxy_activate (Proxy_Socket);
+
+extern int proxy_http_negotiate (Proxy_Socket, int);
+extern int proxy_telnet_negotiate (Proxy_Socket, int);
+extern int proxy_socks4_negotiate (Proxy_Socket, int);
+extern int proxy_socks5_negotiate (Proxy_Socket, int);
+
+/*
+ * This may be reused by local-command proxies on individual
+ * platforms.
+ */
+char *format_telnet_command(SockAddr addr, int port, Conf *conf);
+
+/*
+ * These are implemented in cproxy.c or nocproxy.c, depending on
+ * whether encrypted proxy authentication is available.
+ */
+extern void proxy_socks5_offerencryptedauth(char *command, int *len);
+extern int proxy_socks5_handlechap (Proxy_Socket p);
+extern int proxy_socks5_selectchap(Proxy_Socket p);
+
+#endif
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