]> andersk Git - gssapi-openssh.git/blobdiff - openssh/clientloop.c
Initial revision
[gssapi-openssh.git] / openssh / clientloop.c
index 65a6682a68e194b7db5c171745316a0a40c8c30c..cbcb1d1998a26dbebd2f28d3b61277ba12097a6b 100644 (file)
@@ -59,7 +59,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: clientloop.c,v 1.96 2002/02/06 14:55:15 markus Exp $");
+RCSID("$OpenBSD: clientloop.c,v 1.87 2001/11/09 18:59:23 markus Exp $");
 
 #include "ssh.h"
 #include "ssh1.h"
@@ -101,8 +101,8 @@ extern char *host;
  * window size to be sent to the server a little later.  This is volatile
  * because this is updated in a signal handler.
  */
-static volatile sig_atomic_t received_window_change_signal = 0;
-static volatile sig_atomic_t received_signal = 0;
+static volatile int received_window_change_signal = 0;
+static volatile int received_signal = 0;
 
 /* Flag indicating whether the user\'s terminal is in non-blocking mode. */
 static int in_non_blocking_mode = 0;
@@ -254,7 +254,7 @@ client_make_packets_from_stdin_data(void)
 
        /* Send buffered stdin data to the server. */
        while (buffer_len(&stdin_buffer) > 0 &&
-           packet_not_very_much_data_to_write()) {
+              packet_not_very_much_data_to_write()) {
                len = buffer_len(&stdin_buffer);
                /* Keep the packets at reasonable size. */
                if (len > packet_get_maxsize())
@@ -417,9 +417,9 @@ client_suspend_self(Buffer *bin, Buffer *bout, Buffer *berr)
        /* Check if the window size has changed. */
        if (ioctl(fileno(stdin), TIOCGWINSZ, &newws) >= 0 &&
            (oldws.ws_row != newws.ws_row ||
-           oldws.ws_col != newws.ws_col ||
-           oldws.ws_xpixel != newws.ws_xpixel ||
-           oldws.ws_ypixel != newws.ws_ypixel))
+            oldws.ws_col != newws.ws_col ||
+            oldws.ws_xpixel != newws.ws_xpixel ||
+            oldws.ws_ypixel != newws.ws_ypixel))
                received_window_change_signal = 1;
 
        /* OK, we have been continued by the user. Reinitialize buffers. */
@@ -949,7 +949,7 @@ client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id)
        if (received_signal) {
                if (in_non_blocking_mode)       /* XXX */
                        leave_non_blocking();
-               fatal("Killed by signal %d.", (int) received_signal);
+               fatal("Killed by signal %d.", received_signal);
        }
 
        /*
@@ -994,11 +994,11 @@ client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id)
        /* Report bytes transferred, and transfer rates. */
        total_time = get_current_time() - start_time;
        debug("Transferred: stdin %lu, stdout %lu, stderr %lu bytes in %.1f seconds",
-           stdin_bytes, stdout_bytes, stderr_bytes, total_time);
+             stdin_bytes, stdout_bytes, stderr_bytes, total_time);
        if (total_time > 0)
                debug("Bytes per second: stdin %.1f, stdout %.1f, stderr %.1f",
-                   stdin_bytes / total_time, stdout_bytes / total_time,
-                   stderr_bytes / total_time);
+                     stdin_bytes / total_time, stdout_bytes / total_time,
+                     stderr_bytes / total_time);
 
        /* Return the exit status of the program. */
        debug("Exit status %d", exit_status);
@@ -1008,30 +1008,30 @@ client_loop(int have_pty, int escape_char_arg, int ssh2_chan_id)
 /*********/
 
 static void
-client_input_stdout_data(int type, u_int32_t seq, void *ctxt)
+client_input_stdout_data(int type, int plen, void *ctxt)
 {
        u_int data_len;
        char *data = packet_get_string(&data_len);
-       packet_check_eom();
+       packet_integrity_check(plen, 4 + data_len, type);
        buffer_append(&stdout_buffer, data, data_len);
        memset(data, 0, data_len);
        xfree(data);
 }
 static void
-client_input_stderr_data(int type, u_int32_t seq, void *ctxt)
+client_input_stderr_data(int type, int plen, void *ctxt)
 {
        u_int data_len;
        char *data = packet_get_string(&data_len);
-       packet_check_eom();
+       packet_integrity_check(plen, 4 + data_len, type);
        buffer_append(&stderr_buffer, data, data_len);
        memset(data, 0, data_len);
        xfree(data);
 }
 static void
-client_input_exit_status(int type, u_int32_t seq, void *ctxt)
+client_input_exit_status(int type, int plen, void *ctxt)
 {
+       packet_integrity_check(plen, 4, type);
        exit_status = packet_get_int();
-       packet_check_eom();
        /* Acknowledge the exit. */
        packet_start(SSH_CMSG_EXIT_CONFIRMATION);
        packet_send();
@@ -1057,7 +1057,7 @@ client_request_forwarded_tcpip(const char *request_type, int rchan)
        listen_port = packet_get_int();
        originator_address = packet_get_string(NULL);
        originator_port = packet_get_int();
-       packet_check_eom();
+       packet_done();
 
        debug("client_request_forwarded_tcpip: listen %s port %d, originator %s port %d",
            listen_address, listen_port, originator_address, originator_port);
@@ -1072,6 +1072,10 @@ client_request_forwarded_tcpip(const char *request_type, int rchan)
            SSH_CHANNEL_CONNECTING, sock, sock, -1,
            CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0,
            xstrdup(originator_address), 1);
+       if (c == NULL) {
+               error("client_request_forwarded_tcpip: channel_new failed");
+               close(sock);
+       }
        xfree(originator_address);
        xfree(listen_address);
        return c;
@@ -1097,7 +1101,7 @@ client_request_x11(const char *request_type, int rchan)
        } else {
                originator_port = packet_get_int();
        }
-       packet_check_eom();
+       packet_done();
        /* XXX check permission */
        debug("client_request_x11: request from %s %d", originator,
            originator_port);
@@ -1109,6 +1113,10 @@ client_request_x11(const char *request_type, int rchan)
            SSH_CHANNEL_X11_OPEN, sock, sock, -1,
            CHAN_TCP_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, 0,
            xstrdup("x11"), 1);
+       if (c == NULL) {
+               error("client_request_x11: channel_new failed");
+               close(sock);
+       }
        c->force_drain = 1;
        return c;
 }
@@ -1131,13 +1139,17 @@ client_request_agent(const char *request_type, int rchan)
            SSH_CHANNEL_OPEN, sock, sock, -1,
            CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0,
            xstrdup("authentication agent connection"), 1);
+       if (c == NULL) {
+               error("client_request_agent: channel_new failed");
+               close(sock);
+       }
        c->force_drain = 1;
        return c;
 }
 
 /* XXXX move to generic input handler */
 static void
-client_input_channel_open(int type, u_int32_t seq, void *ctxt)
+client_input_channel_open(int type, int plen, void *ctxt)
 {
        Channel *c = NULL;
        char *ctype;
@@ -1189,7 +1201,7 @@ client_input_channel_open(int type, u_int32_t seq, void *ctxt)
        xfree(ctype);
 }
 static void
-client_input_channel_req(int type, u_int32_t seq, void *ctxt)
+client_input_channel_req(int type, int plen, void *ctxt)
 {
        Channel *c = NULL;
        int id, reply, success = 0;
@@ -1214,7 +1226,7 @@ client_input_channel_req(int type, u_int32_t seq, void *ctxt)
        } else if (strcmp(rtype, "exit-status") == 0) {
                success = 1;
                exit_status = packet_get_int();
-               packet_check_eom();
+               packet_done();
        }
        if (reply) {
                packet_start(success ?
@@ -1224,24 +1236,6 @@ client_input_channel_req(int type, u_int32_t seq, void *ctxt)
        }
        xfree(rtype);
 }
-static void
-client_input_global_request(int type, u_int32_t seq, void *ctxt)
-{
-       char *rtype;
-       int want_reply;
-       int success = 0;
-
-       rtype = packet_get_string(NULL);
-       want_reply = packet_get_char();
-       debug("client_input_global_request: rtype %s want_reply %d", rtype, want_reply);
-       if (want_reply) {
-               packet_start(success ?
-                   SSH2_MSG_REQUEST_SUCCESS : SSH2_MSG_REQUEST_FAILURE);
-               packet_send();
-               packet_write_wait();
-       }
-       xfree(rtype);
-}
 
 static void
 client_init_dispatch_20(void)
@@ -1256,7 +1250,6 @@ client_init_dispatch_20(void)
        dispatch_set(SSH2_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure);
        dispatch_set(SSH2_MSG_CHANNEL_REQUEST, &client_input_channel_req);
        dispatch_set(SSH2_MSG_CHANNEL_WINDOW_ADJUST, &channel_input_window_adjust);
-       dispatch_set(SSH2_MSG_GLOBAL_REQUEST, &client_input_global_request);
 
        /* rekeying */
        dispatch_set(SSH2_MSG_KEXINIT, &kex_input_kexinit);
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