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putty-source/unix/uxputty.c

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/*
* Unix PuTTY main program.
*/
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#define MAY_REFER_TO_GTK_IN_HEADERS
#include "putty.h"
#include "storage.h"
#include "gtkcompat.h"
/*
* Stubs to avoid uxpty.c needing to be linked in.
*/
const int use_pty_argv = FALSE;
char **pty_argv; /* never used */
char *pty_osx_envrestore_prefix;
/*
* Clean up and exit.
*/
void cleanup_exit(int code)
{
/*
* Clean up.
*/
sk_cleanup();
random_save_seed();
exit(code);
}
Post-release destabilisation! Completely remove the struct type 'Config' in putty.h, which stores all PuTTY's settings and includes an arbitrary length limit on every single one of those settings which is stored in string form. In place of it is 'Conf', an opaque data type everywhere outside the new file conf.c, which stores a list of (key, value) pairs in which every key contains an integer identifying a configuration setting, and for some of those integers the key also contains extra parts (so that, for instance, CONF_environmt is a string-to-string mapping). Everywhere that a Config was previously used, a Conf is now; everywhere there was a Config structure copy, conf_copy() is called; every lookup, adjustment, load and save operation on a Config has been rewritten; and there's a mechanism for serialising a Conf into a binary blob and back for use with Duplicate Session. User-visible effects of this change _should_ be minimal, though I don't doubt I've introduced one or two bugs here and there which will eventually be found. The _intended_ visible effects of this change are that all arbitrary limits on configuration strings and lists (e.g. limit on number of port forwardings) should now disappear; that list boxes in the configuration will now be displayed in a sorted order rather than the arbitrary order in which they were added to the list (since the underlying data structure is now a sorted tree234 rather than an ad-hoc comma-separated string); and one more specific change, which is that local and dynamic port forwardings on the same port number are now mutually exclusive in the configuration (putting 'D' in the key rather than the value was a mistake in the first place). One other reorganisation as a result of this is that I've moved all the dialog.c standard handlers (dlg_stdeditbox_handler and friends) out into config.c, because I can't really justify calling them generic any more. When they took a pointer to an arbitrary structure type and the offset of a field within that structure, they were independent of whether that structure was a Config or something completely different, but now they really do expect to talk to a Conf, which can _only_ be used for PuTTY configuration, so I've renamed them all things like conf_editbox_handler and moved them out of the nominally independent dialog-box management module into the PuTTY-specific config.c. [originally from svn r9214]
2011-07-14 18:52:21 +00:00
Backend *select_backend(Conf *conf)
{
Post-release destabilisation! Completely remove the struct type 'Config' in putty.h, which stores all PuTTY's settings and includes an arbitrary length limit on every single one of those settings which is stored in string form. In place of it is 'Conf', an opaque data type everywhere outside the new file conf.c, which stores a list of (key, value) pairs in which every key contains an integer identifying a configuration setting, and for some of those integers the key also contains extra parts (so that, for instance, CONF_environmt is a string-to-string mapping). Everywhere that a Config was previously used, a Conf is now; everywhere there was a Config structure copy, conf_copy() is called; every lookup, adjustment, load and save operation on a Config has been rewritten; and there's a mechanism for serialising a Conf into a binary blob and back for use with Duplicate Session. User-visible effects of this change _should_ be minimal, though I don't doubt I've introduced one or two bugs here and there which will eventually be found. The _intended_ visible effects of this change are that all arbitrary limits on configuration strings and lists (e.g. limit on number of port forwardings) should now disappear; that list boxes in the configuration will now be displayed in a sorted order rather than the arbitrary order in which they were added to the list (since the underlying data structure is now a sorted tree234 rather than an ad-hoc comma-separated string); and one more specific change, which is that local and dynamic port forwardings on the same port number are now mutually exclusive in the configuration (putting 'D' in the key rather than the value was a mistake in the first place). One other reorganisation as a result of this is that I've moved all the dialog.c standard handlers (dlg_stdeditbox_handler and friends) out into config.c, because I can't really justify calling them generic any more. When they took a pointer to an arbitrary structure type and the offset of a field within that structure, they were independent of whether that structure was a Config or something completely different, but now they really do expect to talk to a Conf, which can _only_ be used for PuTTY configuration, so I've renamed them all things like conf_editbox_handler and moved them out of the nominally independent dialog-box management module into the PuTTY-specific config.c. [originally from svn r9214]
2011-07-14 18:52:21 +00:00
Backend *back = backend_from_proto(conf_get_int(conf, CONF_protocol));
assert(back != NULL);
return back;
}
void initial_config_box(Conf *conf, post_dialog_fn_t after, void *afterctx)
{
char *title = dupcat(appname, " Configuration", NULL);
create_config_box(title, conf, FALSE, 0, after, afterctx);
sfree(title);
}
const int use_event_log = 1, new_session = 1, saved_sessions = 1;
const int dup_check_launchable = 1;
char *make_default_wintitle(char *hostname)
{
return dupcat(hostname, " - ", appname, NULL);
}
/*
* X11-forwarding-related things suitable for Gtk app.
*/
char *platform_get_x_display(void) {
const char *display;
/* Try to take account of --display and what have you. */
if (!(display = gdk_get_display()))
/* fall back to traditional method */
display = getenv("DISPLAY");
return dupstr(display);
}
const int share_can_be_downstream = TRUE;
const int share_can_be_upstream = TRUE;
void setup(int single)
{
sk_init();
flags = FLAG_VERBOSE | FLAG_INTERACTIVE;
Centralise PuTTY and Plink's non-option argument handling. This is another piece of long-overdue refactoring similar to the recent commit e3796cb77. But where that one dealt with normalisation of stuff already stored _in_ a Conf by whatever means (including, in particular, handling a user typing 'username@host.name' into the Hostname box of the GUI session dialog box), this one deals with handling argv entries and putting them into the Conf. This isn't exactly a pure no-functional-change-at-all refactoring. On the other hand, it isn't a full-on cleanup that completely rationalises all the user-visible behaviour as well as the code structure. It's somewhere in between: I've preserved all the behaviour quirks that I could imagine a reason for having intended, but taken the opportunity to _not_ faithfully replicate anything I thought was clearly just a bug. So, for example, the following inconsistency is carefully preserved: the command 'plink -load session nextword' treats 'nextword' as a host name if the loaded session hasn't provided a hostname already, and otherwise treats 'nextword' as the remote command to execute on the already-specified remote host, but the same combination of arguments to GUI PuTTY will _always_ treat 'nextword' as a hostname, overriding a hostname (if any) in the saved session. That makes some sense to me because of the different shapes of the overall command lines. On the other hand, there are two behaviour changes I know of as a result of this commit: a third argument to GUI PuTTY (after a hostname and port) now provokes an error message instead of being silently ignored, and in Plink, if you combine a -P option (specifying a port number) with the historical comma-separated protocol selection prefix on the hostname argument (which I'd completely forgotten even existed until this piece of work), then the -P will now override the selected protocol's default port number, whereas previously the default port would win. For example, 'plink -P 12345 telnet,hostname' will now connect via Telnet to port 12345 instead of to port 23. There may be scope for removing or rethinking some of the command- line syntax quirks in the wake of this change. If we do decide to do anything like that, then hopefully having it all in one place will make it easier to remove or change things consistently across the tools.
2017-12-07 19:59:43 +00:00
cmdline_tooltype |= TOOLTYPE_HOST_ARG | TOOLTYPE_PORT_ARG;
default_protocol = be_default_protocol;
/* Find the appropriate default port. */
{
Backend *b = backend_from_proto(default_protocol);
default_port = 0; /* illegal */
if (b)
default_port = b->default_port;
}
}