version 1.84, 2001/10/11 15:24:00 |
version 1.84.2.2, 2002/03/07 17:37:46 |
|
|
* window size to be sent to the server a little later. This is volatile |
* window size to be sent to the server a little later. This is volatile |
* because this is updated in a signal handler. |
* because this is updated in a signal handler. |
*/ |
*/ |
static volatile int received_window_change_signal = 0; |
static volatile sig_atomic_t received_window_change_signal = 0; |
static volatile int received_signal = 0; |
static volatile sig_atomic_t received_signal = 0; |
|
|
/* Flag indicating whether the user\'s terminal is in non-blocking mode. */ |
/* Flag indicating whether the user\'s terminal is in non-blocking mode. */ |
static int in_non_blocking_mode = 0; |
static int in_non_blocking_mode = 0; |
|
|
|
|
/* Send buffered stdin data to the server. */ |
/* Send buffered stdin data to the server. */ |
while (buffer_len(&stdin_buffer) > 0 && |
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); |
len = buffer_len(&stdin_buffer); |
/* Keep the packets at reasonable size. */ |
/* Keep the packets at reasonable size. */ |
if (len > packet_get_maxsize()) |
if (len > packet_get_maxsize()) |
|
|
if (session_closed && !channel_still_open() && |
if (session_closed && !channel_still_open() && |
!packet_have_data_to_write()) { |
!packet_have_data_to_write()) { |
/* clear mask since we did not call select() */ |
/* clear mask since we did not call select() */ |
memset(*readsetp, 0, *maxfdp); |
memset(*readsetp, 0, *nallocp); |
memset(*writesetp, 0, *maxfdp); |
memset(*writesetp, 0, *nallocp); |
return; |
return; |
} else { |
} else { |
FD_SET(connection_in, *readsetp); |
FD_SET(connection_in, *readsetp); |
|
|
* We have to return, because the mainloop checks for the flags |
* We have to return, because the mainloop checks for the flags |
* set by the signal handlers. |
* set by the signal handlers. |
*/ |
*/ |
memset(*readsetp, 0, *maxfdp); |
memset(*readsetp, 0, *nallocp); |
memset(*writesetp, 0, *maxfdp); |
memset(*writesetp, 0, *nallocp); |
|
|
if (errno == EINTR) |
if (errno == EINTR) |
return; |
return; |
|
|
/* Check if the window size has changed. */ |
/* Check if the window size has changed. */ |
if (ioctl(fileno(stdin), TIOCGWINSZ, &newws) >= 0 && |
if (ioctl(fileno(stdin), TIOCGWINSZ, &newws) >= 0 && |
(oldws.ws_row != newws.ws_row || |
(oldws.ws_row != newws.ws_row || |
oldws.ws_col != newws.ws_col || |
oldws.ws_col != newws.ws_col || |
oldws.ws_xpixel != newws.ws_xpixel || |
oldws.ws_xpixel != newws.ws_xpixel || |
oldws.ws_ypixel != newws.ws_ypixel)) |
oldws.ws_ypixel != newws.ws_ypixel)) |
received_window_change_signal = 1; |
received_window_change_signal = 1; |
|
|
/* OK, we have been continued by the user. Reinitialize buffers. */ |
/* OK, we have been continued by the user. Reinitialize buffers. */ |
|
|
continue; |
continue; |
|
|
case '&': |
case '&': |
/* XXX does not work yet with proto 2 */ |
|
if (compat20) |
|
continue; |
|
/* |
/* |
* Detach the program (continue to serve connections, |
* Detach the program (continue to serve connections, |
* but put in background and no more new connections). |
* but put in background and no more new connections). |
*/ |
*/ |
if (!stdin_eof) { |
|
/* |
|
* Sending SSH_CMSG_EOF alone does not always appear |
|
* to be enough. So we try to send an EOF character |
|
* first. |
|
*/ |
|
packet_start(SSH_CMSG_STDIN_DATA); |
|
packet_put_string("\004", 1); |
|
packet_send(); |
|
/* Close stdin. */ |
|
stdin_eof = 1; |
|
if (buffer_len(bin) == 0) { |
|
packet_start(SSH_CMSG_EOF); |
|
packet_send(); |
|
} |
|
} |
|
/* Restore tty modes. */ |
/* Restore tty modes. */ |
leave_raw_mode(); |
leave_raw_mode(); |
|
|
/* Stop listening for new connections. */ |
/* Stop listening for new connections. */ |
channel_close_all(); /* proto1 only XXXX */ |
channel_stop_listening(); |
|
|
printf("%c& [backgrounded]\n", escape_char); |
snprintf(string, sizeof string, |
|
"%c& [backgrounded]\n", escape_char); |
|
buffer_append(berr, string, strlen(string)); |
|
|
/* Fork into background. */ |
/* Fork into background. */ |
pid = fork(); |
pid = fork(); |
|
|
exit(0); |
exit(0); |
} |
} |
/* The child continues serving connections. */ |
/* The child continues serving connections. */ |
continue; /*XXX ? */ |
if (compat20) { |
|
buffer_append(bin, "\004", 1); |
|
/* fake EOF on stdin */ |
|
return -1; |
|
} else if (!stdin_eof) { |
|
/* |
|
* Sending SSH_CMSG_EOF alone does not always appear |
|
* to be enough. So we try to send an EOF character |
|
* first. |
|
*/ |
|
packet_start(SSH_CMSG_STDIN_DATA); |
|
packet_put_string("\004", 1); |
|
packet_send(); |
|
/* Close stdin. */ |
|
stdin_eof = 1; |
|
if (buffer_len(bin) == 0) { |
|
packet_start(SSH_CMSG_EOF); |
|
packet_send(); |
|
} |
|
} |
|
continue; |
|
|
case '?': |
case '?': |
snprintf(string, sizeof string, |
snprintf(string, sizeof string, |
|
|
signal(SIGINT, signal_handler); |
signal(SIGINT, signal_handler); |
signal(SIGQUIT, signal_handler); |
signal(SIGQUIT, signal_handler); |
signal(SIGTERM, signal_handler); |
signal(SIGTERM, signal_handler); |
signal(SIGPIPE, SIG_IGN); |
|
if (have_pty) |
if (have_pty) |
signal(SIGWINCH, window_change_handler); |
signal(SIGWINCH, window_change_handler); |
|
|
|
|
if (received_signal) { |
if (received_signal) { |
if (in_non_blocking_mode) /* XXX */ |
if (in_non_blocking_mode) /* XXX */ |
leave_non_blocking(); |
leave_non_blocking(); |
fatal("Killed by signal %d.", received_signal); |
fatal("Killed by signal %d.", (int) received_signal); |
} |
} |
|
|
/* |
/* |
|
|
/* Report bytes transferred, and transfer rates. */ |
/* Report bytes transferred, and transfer rates. */ |
total_time = get_current_time() - start_time; |
total_time = get_current_time() - start_time; |
debug("Transferred: stdin %lu, stdout %lu, stderr %lu bytes in %.1f seconds", |
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) |
if (total_time > 0) |
debug("Bytes per second: stdin %.1f, stdout %.1f, stderr %.1f", |
debug("Bytes per second: stdin %.1f, stdout %.1f, stderr %.1f", |
stdin_bytes / total_time, stdout_bytes / total_time, |
stdin_bytes / total_time, stdout_bytes / total_time, |
stderr_bytes / total_time); |
stderr_bytes / total_time); |
|
|
/* Return the exit status of the program. */ |
/* Return the exit status of the program. */ |
debug("Exit status %d", exit_status); |
debug("Exit status %d", exit_status); |
|
|
/*********/ |
/*********/ |
|
|
static void |
static void |
client_input_stdout_data(int type, int plen, void *ctxt) |
client_input_stdout_data(int type, u_int32_t seq, void *ctxt) |
{ |
{ |
u_int data_len; |
u_int data_len; |
char *data = packet_get_string(&data_len); |
char *data = packet_get_string(&data_len); |
packet_integrity_check(plen, 4 + data_len, type); |
packet_check_eom(); |
buffer_append(&stdout_buffer, data, data_len); |
buffer_append(&stdout_buffer, data, data_len); |
memset(data, 0, data_len); |
memset(data, 0, data_len); |
xfree(data); |
xfree(data); |
} |
} |
static void |
static void |
client_input_stderr_data(int type, int plen, void *ctxt) |
client_input_stderr_data(int type, u_int32_t seq, void *ctxt) |
{ |
{ |
u_int data_len; |
u_int data_len; |
char *data = packet_get_string(&data_len); |
char *data = packet_get_string(&data_len); |
packet_integrity_check(plen, 4 + data_len, type); |
packet_check_eom(); |
buffer_append(&stderr_buffer, data, data_len); |
buffer_append(&stderr_buffer, data, data_len); |
memset(data, 0, data_len); |
memset(data, 0, data_len); |
xfree(data); |
xfree(data); |
} |
} |
static void |
static void |
client_input_exit_status(int type, int plen, void *ctxt) |
client_input_exit_status(int type, u_int32_t seq, void *ctxt) |
{ |
{ |
packet_integrity_check(plen, 4, type); |
|
exit_status = packet_get_int(); |
exit_status = packet_get_int(); |
|
packet_check_eom(); |
/* Acknowledge the exit. */ |
/* Acknowledge the exit. */ |
packet_start(SSH_CMSG_EXIT_CONFIRMATION); |
packet_start(SSH_CMSG_EXIT_CONFIRMATION); |
packet_send(); |
packet_send(); |
|
|
listen_port = packet_get_int(); |
listen_port = packet_get_int(); |
originator_address = packet_get_string(NULL); |
originator_address = packet_get_string(NULL); |
originator_port = packet_get_int(); |
originator_port = packet_get_int(); |
packet_done(); |
packet_check_eom(); |
|
|
debug("client_request_forwarded_tcpip: listen %s port %d, originator %s port %d", |
debug("client_request_forwarded_tcpip: listen %s port %d, originator %s port %d", |
listen_address, listen_port, originator_address, originator_port); |
listen_address, listen_port, originator_address, originator_port); |
|
|
SSH_CHANNEL_CONNECTING, sock, sock, -1, |
SSH_CHANNEL_CONNECTING, sock, sock, -1, |
CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0, |
CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0, |
xstrdup(originator_address), 1); |
xstrdup(originator_address), 1); |
if (c == NULL) { |
|
error("client_request_forwarded_tcpip: channel_new failed"); |
|
close(sock); |
|
} |
|
xfree(originator_address); |
xfree(originator_address); |
xfree(listen_address); |
xfree(listen_address); |
return c; |
return c; |
|
|
} else { |
} else { |
originator_port = packet_get_int(); |
originator_port = packet_get_int(); |
} |
} |
packet_done(); |
packet_check_eom(); |
/* XXX check permission */ |
/* XXX check permission */ |
debug("client_request_x11: request from %s %d", originator, |
debug("client_request_x11: request from %s %d", originator, |
originator_port); |
originator_port); |
|
|
SSH_CHANNEL_X11_OPEN, sock, sock, -1, |
SSH_CHANNEL_X11_OPEN, sock, sock, -1, |
CHAN_TCP_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, 0, |
CHAN_TCP_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, 0, |
xstrdup("x11"), 1); |
xstrdup("x11"), 1); |
if (c == NULL) { |
|
error("client_request_x11: channel_new failed"); |
|
close(sock); |
|
} |
|
c->force_drain = 1; |
c->force_drain = 1; |
return c; |
return c; |
} |
} |
|
|
SSH_CHANNEL_OPEN, sock, sock, -1, |
SSH_CHANNEL_OPEN, sock, sock, -1, |
CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0, |
CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0, |
xstrdup("authentication agent connection"), 1); |
xstrdup("authentication agent connection"), 1); |
if (c == NULL) { |
|
error("client_request_agent: channel_new failed"); |
|
close(sock); |
|
} |
|
c->force_drain = 1; |
c->force_drain = 1; |
return c; |
return c; |
} |
} |
|
|
/* XXXX move to generic input handler */ |
/* XXXX move to generic input handler */ |
static void |
static void |
client_input_channel_open(int type, int plen, void *ctxt) |
client_input_channel_open(int type, u_int32_t seq, void *ctxt) |
{ |
{ |
Channel *c = NULL; |
Channel *c = NULL; |
char *ctype; |
char *ctype; |
|
|
xfree(ctype); |
xfree(ctype); |
} |
} |
static void |
static void |
client_input_channel_req(int type, int plen, void *ctxt) |
client_input_channel_req(int type, u_int32_t seq, void *ctxt) |
{ |
{ |
Channel *c = NULL; |
Channel *c = NULL; |
int id, reply, success = 0; |
int id, reply, success = 0; |
|
|
} else if (strcmp(rtype, "exit-status") == 0) { |
} else if (strcmp(rtype, "exit-status") == 0) { |
success = 1; |
success = 1; |
exit_status = packet_get_int(); |
exit_status = packet_get_int(); |
packet_done(); |
packet_check_eom(); |
} |
} |
if (reply) { |
if (reply) { |
packet_start(success ? |
packet_start(success ? |
|
|
} |
} |
xfree(rtype); |
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 |
static void |
client_init_dispatch_20(void) |
client_init_dispatch_20(void) |
{ |
{ |
|
|
dispatch_set(SSH2_MSG_CHANNEL_OPEN_FAILURE, &channel_input_open_failure); |
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_REQUEST, &client_input_channel_req); |
dispatch_set(SSH2_MSG_CHANNEL_WINDOW_ADJUST, &channel_input_window_adjust); |
dispatch_set(SSH2_MSG_CHANNEL_WINDOW_ADJUST, &channel_input_window_adjust); |
|
dispatch_set(SSH2_MSG_GLOBAL_REQUEST, &client_input_global_request); |
|
|
/* rekeying */ |
/* rekeying */ |
dispatch_set(SSH2_MSG_KEXINIT, &kex_input_kexinit); |
dispatch_set(SSH2_MSG_KEXINIT, &kex_input_kexinit); |