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putty-source/unix/uxputty.c
Simon Tatham 89da2ddf56 Giant const-correctness patch of doom!
Having found a lot of unfixed constness issues in recent development,
I thought perhaps it was time to get proactive, so I compiled the
whole codebase with -Wwrite-strings. That turned up a huge load of
const problems, which I've fixed in this commit: the Unix build now
goes cleanly through with -Wwrite-strings, and the Windows build is as
close as I could get it (there are some lingering issues due to
occasional Windows API functions like AcquireCredentialsHandle not
having the right constness).

Notable fallout beyond the purely mechanical changing of types:
 - the stuff saved by cmdline_save_param() is now explicitly
   dupstr()ed, and freed in cmdline_run_saved.
 - I couldn't make both string arguments to cmdline_process_param()
   const, because it intentionally writes to one of them in the case
   where it's the argument to -pw (in the vain hope of being at least
   slightly friendly to 'ps'), so elsewhere I had to temporarily
   dupstr() something for the sake of passing it to that function
 - I had to invent a silly parallel version of const_cmp() so I could
   pass const string literals in to lookup functions.
 - stripslashes() in pscp.c and psftp.c has the annoying strchr nature
2015-05-15 12:47:44 +01:00

151 lines
3.4 KiB
C

/*
* Unix PuTTY main program.
*/
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include <gdk/gdk.h>
#include "putty.h"
#include "storage.h"
/*
* Stubs to avoid uxpty.c needing to be linked in.
*/
const int use_pty_argv = FALSE;
char **pty_argv; /* never used */
/*
* Clean up and exit.
*/
void cleanup_exit(int code)
{
/*
* Clean up.
*/
sk_cleanup();
random_save_seed();
exit(code);
}
Backend *select_backend(Conf *conf)
{
Backend *back = backend_from_proto(conf_get_int(conf, CONF_protocol));
assert(back != NULL);
return back;
}
int cfgbox(Conf *conf)
{
char *title = dupcat(appname, " Configuration", NULL);
int ret = do_config_box(title, conf, 0, 0);
sfree(title);
return ret;
}
static int got_host = 0;
const int use_event_log = 1, new_session = 1, saved_sessions = 1;
int process_nonoption_arg(const char *arg, Conf *conf, int *allow_launch)
{
char *argdup, *p, *q;
argdup = dupstr(arg);
q = argdup;
if (got_host) {
/*
* If we already have a host name, treat this argument as a
* port number. NB we have to treat this as a saved -P
* argument, so that it will be deferred until it's a good
* moment to run it.
*/
int ret = cmdline_process_param("-P", argdup, 1, conf);
assert(ret == 2);
} else if (!strncmp(q, "telnet:", 7)) {
/*
* If the hostname starts with "telnet:",
* set the protocol to Telnet and process
* the string as a Telnet URL.
*/
char c;
q += 7;
if (q[0] == '/' && q[1] == '/')
q += 2;
conf_set_int(conf, CONF_protocol, PROT_TELNET);
p = q;
p += host_strcspn(p, ":/");
c = *p;
if (*p)
*p++ = '\0';
if (c == ':')
conf_set_int(conf, CONF_port, atoi(p));
else
conf_set_int(conf, CONF_port, -1);
conf_set_str(conf, CONF_host, q);
got_host = 1;
} else {
/*
* Otherwise, treat this argument as a host name.
*/
p = argdup;
while (*p && !isspace((unsigned char)*p))
p++;
if (*p)
*p++ = '\0';
conf_set_str(conf, CONF_host, q);
got_host = 1;
}
if (got_host)
*allow_launch = TRUE;
sfree(argdup);
return 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;
int main(int argc, char **argv)
{
extern int pt_main(int argc, char **argv);
int ret;
sk_init();
flags = FLAG_VERBOSE | FLAG_INTERACTIVE;
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;
}
ret = pt_main(argc, argv);
cleanup_exit(ret);
return ret; /* not reached, but placates optimisers */
}