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SSH-2 rekey bug compatibility setting wasn't being saved
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1 /*
2  * settings.c: read and write saved sessions. (platform-independent)
3  */
4
5 #include <assert.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8 #include "putty.h"
9 #include "storage.h"
10
11 /*
12  * Tables of string <-> enum value mappings
13  */
14 struct keyval { char *s; int v; };
15
16 /* The cipher order given here is the default order. */
17 static const struct keyval ciphernames[] = {
18     { "aes",        CIPHER_AES },
19     { "blowfish",   CIPHER_BLOWFISH },
20     { "3des",       CIPHER_3DES },
21     { "WARN",       CIPHER_WARN },
22     { "arcfour",    CIPHER_ARCFOUR },
23     { "des",        CIPHER_DES }
24 };
25
26 static const struct keyval kexnames[] = {
27     { "dh-gex-sha1",        KEX_DHGEX },
28     { "dh-group14-sha1",    KEX_DHGROUP14 },
29     { "dh-group1-sha1",     KEX_DHGROUP1 },
30     { "WARN",               KEX_WARN }
31 };
32
33 /*
34  * All the terminal modes that we know about for the "TerminalModes"
35  * setting. (Also used by config.c for the drop-down list.)
36  * This is currently precisely the same as the set in ssh.c, but could
37  * in principle differ if other backends started to support tty modes
38  * (e.g., the pty backend).
39  */
40 const char *const ttymodes[] = {
41     "INTR",     "QUIT",     "ERASE",    "KILL",     "EOF",
42     "EOL",      "EOL2",     "START",    "STOP",     "SUSP",
43     "DSUSP",    "REPRINT",  "WERASE",   "LNEXT",    "FLUSH",
44     "SWTCH",    "STATUS",   "DISCARD",  "IGNPAR",   "PARMRK",
45     "INPCK",    "ISTRIP",   "INLCR",    "IGNCR",    "ICRNL",
46     "IUCLC",    "IXON",     "IXANY",    "IXOFF",    "IMAXBEL",
47     "ISIG",     "ICANON",   "XCASE",    "ECHO",     "ECHOE",
48     "ECHOK",    "ECHONL",   "NOFLSH",   "TOSTOP",   "IEXTEN",
49     "ECHOCTL",  "ECHOKE",   "PENDIN",   "OPOST",    "OLCUC",
50     "ONLCR",    "OCRNL",    "ONOCR",    "ONLRET",   "CS7",
51     "CS8",      "PARENB",   "PARODD",   NULL
52 };
53
54 static void gpps(void *handle, const char *name, const char *def,
55                  char *val, int len)
56 {
57     if (!read_setting_s(handle, name, val, len)) {
58         char *pdef;
59
60         pdef = platform_default_s(name);
61         if (pdef) {
62             strncpy(val, pdef, len);
63             sfree(pdef);
64         } else {
65             strncpy(val, def, len);
66         }
67
68         val[len - 1] = '\0';
69     }
70 }
71
72 /*
73  * gppfont and gppfile cannot have local defaults, since the very
74  * format of a Filename or Font is platform-dependent. So the
75  * platform-dependent functions MUST return some sort of value.
76  */
77 static void gppfont(void *handle, const char *name, FontSpec *result)
78 {
79     if (!read_setting_fontspec(handle, name, result))
80         *result = platform_default_fontspec(name);
81 }
82 static void gppfile(void *handle, const char *name, Filename *result)
83 {
84     if (!read_setting_filename(handle, name, result))
85         *result = platform_default_filename(name);
86 }
87
88 static void gppi(void *handle, char *name, int def, int *i)
89 {
90     def = platform_default_i(name, def);
91     *i = read_setting_i(handle, name, def);
92 }
93
94 /*
95  * Read a set of name-value pairs in the format we occasionally use:
96  *   NAME\tVALUE\0NAME\tVALUE\0\0 in memory
97  *   NAME=VALUE,NAME=VALUE, in storage
98  * `def' is in the storage format.
99  */
100 static void gppmap(void *handle, char *name, char *def, char *val, int len)
101 {
102     char *buf = snewn(2*len, char), *p, *q;
103     gpps(handle, name, def, buf, 2*len);
104     p = buf;
105     q = val;
106     while (*p) {
107         while (*p && *p != ',') {
108             int c = *p++;
109             if (c == '=')
110                 c = '\t';
111             if (c == '\\')
112                 c = *p++;
113             *q++ = c;
114         }
115         if (*p == ',')
116             p++;
117         *q++ = '\0';
118     }
119     *q = '\0';
120     sfree(buf);
121 }
122
123 /*
124  * Write a set of name/value pairs in the above format.
125  */
126 static void wmap(void *handle, char const *key, char const *value, int len)
127 {
128     char *buf = snewn(2*len, char), *p;
129     const char *q;
130     p = buf;
131     q = value;
132     while (*q) {
133         while (*q) {
134             int c = *q++;
135             if (c == '=' || c == ',' || c == '\\')
136                 *p++ = '\\';
137             if (c == '\t')
138                 c = '=';
139             *p++ = c;
140         }
141         *p++ = ',';
142         q++;
143     }
144     *p = '\0';
145     write_setting_s(handle, key, buf);
146     sfree(buf);
147 }
148
149 static int key2val(const struct keyval *mapping, int nmaps, char *key)
150 {
151     int i;
152     for (i = 0; i < nmaps; i++)
153         if (!strcmp(mapping[i].s, key)) return mapping[i].v;
154     return -1;
155 }
156
157 static const char *val2key(const struct keyval *mapping, int nmaps, int val)
158 {
159     int i;
160     for (i = 0; i < nmaps; i++)
161         if (mapping[i].v == val) return mapping[i].s;
162     return NULL;
163 }
164
165 /*
166  * Helper function to parse a comma-separated list of strings into
167  * a preference list array of values. Any missing values are added
168  * to the end and duplicates are weeded.
169  * XXX: assumes vals in 'mapping' are small +ve integers
170  */
171 static void gprefs(void *sesskey, char *name, char *def,
172                    const struct keyval *mapping, int nvals,
173                    int *array)
174 {
175     char commalist[80];
176     char *tokarg = commalist;
177     int n;
178     unsigned long seen = 0;            /* bitmap for weeding dups etc */
179     gpps(sesskey, name, def, commalist, sizeof(commalist));
180
181     /* Grotty parsing of commalist. */
182     n = 0;
183     do {
184         int v;
185         char *key;
186         key = strtok(tokarg, ","); /* sorry */
187         tokarg = NULL;
188         if (!key) break;
189         if (((v = key2val(mapping, nvals, key)) != -1) &&
190             !(seen & 1<<v)) {
191             array[n] = v;
192             n++;
193             seen |= 1<<v;
194         }
195     } while (n < nvals);
196     /* Add any missing values (backward compatibility ect). */
197     {
198         int i;
199         for (i = 0; i < nvals; i++) {
200             assert(mapping[i].v < 32);
201             if (!(seen & 1<<mapping[i].v)) {
202                 array[n] = mapping[i].v;
203                 n++;
204             }
205         }
206     }
207 }
208
209 /* 
210  * Write out a preference list.
211  */
212 static void wprefs(void *sesskey, char *name,
213                    const struct keyval *mapping, int nvals,
214                    int *array)
215 {
216     char buf[80] = "";  /* XXX assumed big enough */
217     int l = sizeof(buf)-1, i;
218     buf[l] = '\0';
219     for (i = 0; l > 0 && i < nvals; i++) {
220         const char *s = val2key(mapping, nvals, array[i]);
221         if (s) {
222             int sl = strlen(s);
223             if (i > 0) {
224                 strncat(buf, ",", l);
225                 l--;
226             }
227             strncat(buf, s, l);
228             l -= sl;
229         }
230     }
231     write_setting_s(sesskey, name, buf);
232 }
233
234 char *save_settings(char *section, int do_host, Config * cfg)
235 {
236     void *sesskey;
237     char *errmsg;
238
239     sesskey = open_settings_w(section, &errmsg);
240     if (!sesskey)
241         return errmsg;
242     save_open_settings(sesskey, do_host, cfg);
243     close_settings_w(sesskey);
244     return NULL;
245 }
246
247 void save_open_settings(void *sesskey, int do_host, Config *cfg)
248 {
249     int i;
250     char *p;
251
252     write_setting_i(sesskey, "Present", 1);
253     if (do_host) {
254         write_setting_s(sesskey, "HostName", cfg->host);
255     }
256     write_setting_filename(sesskey, "LogFileName", cfg->logfilename);
257     write_setting_i(sesskey, "LogType", cfg->logtype);
258     write_setting_i(sesskey, "LogFileClash", cfg->logxfovr);
259     write_setting_i(sesskey, "LogFlush", cfg->logflush);
260     write_setting_i(sesskey, "SSHLogOmitPasswords", cfg->logomitpass);
261     write_setting_i(sesskey, "SSHLogOmitData", cfg->logomitdata);
262     p = "raw";
263     for (i = 0; backends[i].name != NULL; i++)
264         if (backends[i].protocol == cfg->protocol) {
265             p = backends[i].name;
266             break;
267         }
268     write_setting_s(sesskey, "Protocol", p);
269     write_setting_i(sesskey, "PortNumber", cfg->port);
270     /* The CloseOnExit numbers are arranged in a different order from
271      * the standard FORCE_ON / FORCE_OFF / AUTO. */
272     write_setting_i(sesskey, "CloseOnExit", (cfg->close_on_exit+2)%3);
273     write_setting_i(sesskey, "WarnOnClose", !!cfg->warn_on_close);
274     write_setting_i(sesskey, "PingInterval", cfg->ping_interval / 60);  /* minutes */
275     write_setting_i(sesskey, "PingIntervalSecs", cfg->ping_interval % 60);      /* seconds */
276     write_setting_i(sesskey, "TCPNoDelay", cfg->tcp_nodelay);
277     write_setting_i(sesskey, "TCPKeepalives", cfg->tcp_keepalives);
278     write_setting_s(sesskey, "TerminalType", cfg->termtype);
279     write_setting_s(sesskey, "TerminalSpeed", cfg->termspeed);
280     wmap(sesskey, "TerminalModes", cfg->ttymodes, lenof(cfg->ttymodes));
281
282     /* Address family selection */
283     write_setting_i(sesskey, "AddressFamily", cfg->addressfamily);
284
285     /* proxy settings */
286     write_setting_s(sesskey, "ProxyExcludeList", cfg->proxy_exclude_list);
287     write_setting_i(sesskey, "ProxyDNS", (cfg->proxy_dns+2)%3);
288     write_setting_i(sesskey, "ProxyLocalhost", cfg->even_proxy_localhost);
289     write_setting_i(sesskey, "ProxyMethod", cfg->proxy_type);
290     write_setting_s(sesskey, "ProxyHost", cfg->proxy_host);
291     write_setting_i(sesskey, "ProxyPort", cfg->proxy_port);
292     write_setting_s(sesskey, "ProxyUsername", cfg->proxy_username);
293     write_setting_s(sesskey, "ProxyPassword", cfg->proxy_password);
294     write_setting_s(sesskey, "ProxyTelnetCommand", cfg->proxy_telnet_command);
295     wmap(sesskey, "Environment", cfg->environmt, lenof(cfg->environmt));
296     write_setting_s(sesskey, "UserName", cfg->username);
297     write_setting_s(sesskey, "LocalUserName", cfg->localusername);
298     write_setting_i(sesskey, "NoPTY", cfg->nopty);
299     write_setting_i(sesskey, "Compression", cfg->compression);
300     write_setting_i(sesskey, "AgentFwd", cfg->agentfwd);
301     write_setting_i(sesskey, "ChangeUsername", cfg->change_username);
302     wprefs(sesskey, "Cipher", ciphernames, CIPHER_MAX,
303            cfg->ssh_cipherlist);
304     wprefs(sesskey, "KEX", kexnames, KEX_MAX, cfg->ssh_kexlist);
305     write_setting_i(sesskey, "RekeyTime", cfg->ssh_rekey_time);
306     write_setting_s(sesskey, "RekeyBytes", cfg->ssh_rekey_data);
307     write_setting_i(sesskey, "SshNoAuth", cfg->ssh_no_userauth);
308     write_setting_i(sesskey, "AuthTIS", cfg->try_tis_auth);
309     write_setting_i(sesskey, "AuthKI", cfg->try_ki_auth);
310     write_setting_i(sesskey, "SshNoShell", cfg->ssh_no_shell);
311     write_setting_i(sesskey, "SshProt", cfg->sshprot);
312     write_setting_i(sesskey, "SSH2DES", cfg->ssh2_des_cbc);
313     write_setting_filename(sesskey, "PublicKeyFile", cfg->keyfile);
314     write_setting_s(sesskey, "RemoteCommand", cfg->remote_cmd);
315     write_setting_i(sesskey, "RFCEnviron", cfg->rfc_environ);
316     write_setting_i(sesskey, "PassiveTelnet", cfg->passive_telnet);
317     write_setting_i(sesskey, "BackspaceIsDelete", cfg->bksp_is_delete);
318     write_setting_i(sesskey, "RXVTHomeEnd", cfg->rxvt_homeend);
319     write_setting_i(sesskey, "LinuxFunctionKeys", cfg->funky_type);
320     write_setting_i(sesskey, "NoApplicationKeys", cfg->no_applic_k);
321     write_setting_i(sesskey, "NoApplicationCursors", cfg->no_applic_c);
322     write_setting_i(sesskey, "NoMouseReporting", cfg->no_mouse_rep);
323     write_setting_i(sesskey, "NoRemoteResize", cfg->no_remote_resize);
324     write_setting_i(sesskey, "NoAltScreen", cfg->no_alt_screen);
325     write_setting_i(sesskey, "NoRemoteWinTitle", cfg->no_remote_wintitle);
326     write_setting_i(sesskey, "NoRemoteQTitle", cfg->no_remote_qtitle);
327     write_setting_i(sesskey, "NoDBackspace", cfg->no_dbackspace);
328     write_setting_i(sesskey, "NoRemoteCharset", cfg->no_remote_charset);
329     write_setting_i(sesskey, "ApplicationCursorKeys", cfg->app_cursor);
330     write_setting_i(sesskey, "ApplicationKeypad", cfg->app_keypad);
331     write_setting_i(sesskey, "NetHackKeypad", cfg->nethack_keypad);
332     write_setting_i(sesskey, "AltF4", cfg->alt_f4);
333     write_setting_i(sesskey, "AltSpace", cfg->alt_space);
334     write_setting_i(sesskey, "AltOnly", cfg->alt_only);
335     write_setting_i(sesskey, "ComposeKey", cfg->compose_key);
336     write_setting_i(sesskey, "CtrlAltKeys", cfg->ctrlaltkeys);
337     write_setting_i(sesskey, "TelnetKey", cfg->telnet_keyboard);
338     write_setting_i(sesskey, "TelnetRet", cfg->telnet_newline);
339     write_setting_i(sesskey, "LocalEcho", cfg->localecho);
340     write_setting_i(sesskey, "LocalEdit", cfg->localedit);
341     write_setting_s(sesskey, "Answerback", cfg->answerback);
342     write_setting_i(sesskey, "AlwaysOnTop", cfg->alwaysontop);
343     write_setting_i(sesskey, "FullScreenOnAltEnter", cfg->fullscreenonaltenter);
344     write_setting_i(sesskey, "HideMousePtr", cfg->hide_mouseptr);
345     write_setting_i(sesskey, "SunkenEdge", cfg->sunken_edge);
346     write_setting_i(sesskey, "WindowBorder", cfg->window_border);
347     write_setting_i(sesskey, "CurType", cfg->cursor_type);
348     write_setting_i(sesskey, "BlinkCur", cfg->blink_cur);
349     write_setting_i(sesskey, "Beep", cfg->beep);
350     write_setting_i(sesskey, "BeepInd", cfg->beep_ind);
351     write_setting_filename(sesskey, "BellWaveFile", cfg->bell_wavefile);
352     write_setting_i(sesskey, "BellOverload", cfg->bellovl);
353     write_setting_i(sesskey, "BellOverloadN", cfg->bellovl_n);
354     write_setting_i(sesskey, "BellOverloadT", cfg->bellovl_t
355 #ifdef PUTTY_UNIX_H
356                     * 1000
357 #endif
358                     );
359     write_setting_i(sesskey, "BellOverloadS", cfg->bellovl_s
360 #ifdef PUTTY_UNIX_H
361                     * 1000
362 #endif
363                     );
364     write_setting_i(sesskey, "ScrollbackLines", cfg->savelines);
365     write_setting_i(sesskey, "DECOriginMode", cfg->dec_om);
366     write_setting_i(sesskey, "AutoWrapMode", cfg->wrap_mode);
367     write_setting_i(sesskey, "LFImpliesCR", cfg->lfhascr);
368     write_setting_i(sesskey, "DisableArabicShaping", cfg->arabicshaping);
369     write_setting_i(sesskey, "DisableBidi", cfg->bidi);
370     write_setting_i(sesskey, "WinNameAlways", cfg->win_name_always);
371     write_setting_s(sesskey, "WinTitle", cfg->wintitle);
372     write_setting_i(sesskey, "TermWidth", cfg->width);
373     write_setting_i(sesskey, "TermHeight", cfg->height);
374     write_setting_fontspec(sesskey, "Font", cfg->font);
375     write_setting_i(sesskey, "FontVTMode", cfg->vtmode);
376     write_setting_i(sesskey, "UseSystemColours", cfg->system_colour);
377     write_setting_i(sesskey, "TryPalette", cfg->try_palette);
378     write_setting_i(sesskey, "ANSIColour", cfg->ansi_colour);
379     write_setting_i(sesskey, "Xterm256Colour", cfg->xterm_256_colour);
380     write_setting_i(sesskey, "BoldAsColour", cfg->bold_colour);
381
382     for (i = 0; i < 22; i++) {
383         char buf[20], buf2[30];
384         sprintf(buf, "Colour%d", i);
385         sprintf(buf2, "%d,%d,%d", cfg->colours[i][0],
386                 cfg->colours[i][1], cfg->colours[i][2]);
387         write_setting_s(sesskey, buf, buf2);
388     }
389     write_setting_i(sesskey, "RawCNP", cfg->rawcnp);
390     write_setting_i(sesskey, "PasteRTF", cfg->rtf_paste);
391     write_setting_i(sesskey, "MouseIsXterm", cfg->mouse_is_xterm);
392     write_setting_i(sesskey, "RectSelect", cfg->rect_select);
393     write_setting_i(sesskey, "MouseOverride", cfg->mouse_override);
394     for (i = 0; i < 256; i += 32) {
395         char buf[20], buf2[256];
396         int j;
397         sprintf(buf, "Wordness%d", i);
398         *buf2 = '\0';
399         for (j = i; j < i + 32; j++) {
400             sprintf(buf2 + strlen(buf2), "%s%d",
401                     (*buf2 ? "," : ""), cfg->wordness[j]);
402         }
403         write_setting_s(sesskey, buf, buf2);
404     }
405     write_setting_s(sesskey, "LineCodePage", cfg->line_codepage);
406     write_setting_i(sesskey, "CJKAmbigWide", cfg->cjk_ambig_wide);
407     write_setting_i(sesskey, "UTF8Override", cfg->utf8_override);
408     write_setting_s(sesskey, "Printer", cfg->printer);
409     write_setting_i(sesskey, "CapsLockCyr", cfg->xlat_capslockcyr);
410     write_setting_i(sesskey, "ScrollBar", cfg->scrollbar);
411     write_setting_i(sesskey, "ScrollBarFullScreen", cfg->scrollbar_in_fullscreen);
412     write_setting_i(sesskey, "ScrollOnKey", cfg->scroll_on_key);
413     write_setting_i(sesskey, "ScrollOnDisp", cfg->scroll_on_disp);
414     write_setting_i(sesskey, "EraseToScrollback", cfg->erase_to_scrollback);
415     write_setting_i(sesskey, "LockSize", cfg->resize_action);
416     write_setting_i(sesskey, "BCE", cfg->bce);
417     write_setting_i(sesskey, "BlinkText", cfg->blinktext);
418     write_setting_i(sesskey, "X11Forward", cfg->x11_forward);
419     write_setting_s(sesskey, "X11Display", cfg->x11_display);
420     write_setting_i(sesskey, "X11AuthType", cfg->x11_auth);
421     write_setting_i(sesskey, "LocalPortAcceptAll", cfg->lport_acceptall);
422     write_setting_i(sesskey, "RemotePortAcceptAll", cfg->rport_acceptall);
423     wmap(sesskey, "PortForwardings", cfg->portfwd, lenof(cfg->portfwd));
424     write_setting_i(sesskey, "BugIgnore1", 2-cfg->sshbug_ignore1);
425     write_setting_i(sesskey, "BugPlainPW1", 2-cfg->sshbug_plainpw1);
426     write_setting_i(sesskey, "BugRSA1", 2-cfg->sshbug_rsa1);
427     write_setting_i(sesskey, "BugHMAC2", 2-cfg->sshbug_hmac2);
428     write_setting_i(sesskey, "BugDeriveKey2", 2-cfg->sshbug_derivekey2);
429     write_setting_i(sesskey, "BugRSAPad2", 2-cfg->sshbug_rsapad2);
430     write_setting_i(sesskey, "BugPKSessID2", 2-cfg->sshbug_pksessid2);
431     write_setting_i(sesskey, "BugRekey2", 2-cfg->sshbug_rekey2);
432     write_setting_i(sesskey, "StampUtmp", cfg->stamp_utmp);
433     write_setting_i(sesskey, "LoginShell", cfg->login_shell);
434     write_setting_i(sesskey, "ScrollbarOnLeft", cfg->scrollbar_on_left);
435     write_setting_fontspec(sesskey, "BoldFont", cfg->boldfont);
436     write_setting_fontspec(sesskey, "WideFont", cfg->widefont);
437     write_setting_fontspec(sesskey, "WideBoldFont", cfg->wideboldfont);
438     write_setting_i(sesskey, "ShadowBold", cfg->shadowbold);
439     write_setting_i(sesskey, "ShadowBoldOffset", cfg->shadowboldoffset);
440 }
441
442 void load_settings(char *section, int do_host, Config * cfg)
443 {
444     void *sesskey;
445
446     sesskey = open_settings_r(section);
447     load_open_settings(sesskey, do_host, cfg);
448     close_settings_r(sesskey);
449 }
450
451 void load_open_settings(void *sesskey, int do_host, Config *cfg)
452 {
453     int i;
454     char prot[10];
455
456     cfg->ssh_subsys = 0;               /* FIXME: load this properly */
457     cfg->remote_cmd_ptr = NULL;
458     cfg->remote_cmd_ptr2 = NULL;
459
460     if (do_host) {
461         gpps(sesskey, "HostName", "", cfg->host, sizeof(cfg->host));
462     } else {
463         cfg->host[0] = '\0';           /* blank hostname */
464     }
465     gppfile(sesskey, "LogFileName", &cfg->logfilename);
466     gppi(sesskey, "LogType", 0, &cfg->logtype);
467     gppi(sesskey, "LogFileClash", LGXF_ASK, &cfg->logxfovr);
468     gppi(sesskey, "LogFlush", 1, &cfg->logflush);
469     gppi(sesskey, "SSHLogOmitPasswords", 1, &cfg->logomitpass);
470     gppi(sesskey, "SSHLogOmitData", 0, &cfg->logomitdata);
471
472     gpps(sesskey, "Protocol", "default", prot, 10);
473     cfg->protocol = default_protocol;
474     cfg->port = default_port;
475     for (i = 0; backends[i].name != NULL; i++)
476         if (!strcmp(prot, backends[i].name)) {
477             cfg->protocol = backends[i].protocol;
478             gppi(sesskey, "PortNumber", default_port, &cfg->port);
479             break;
480         }
481
482     /* Address family selection */
483     gppi(sesskey, "AddressFamily", ADDRTYPE_UNSPEC, &cfg->addressfamily);
484
485     /* The CloseOnExit numbers are arranged in a different order from
486      * the standard FORCE_ON / FORCE_OFF / AUTO. */
487     gppi(sesskey, "CloseOnExit", 1, &i); cfg->close_on_exit = (i+1)%3;
488     gppi(sesskey, "WarnOnClose", 1, &cfg->warn_on_close);
489     {
490         /* This is two values for backward compatibility with 0.50/0.51 */
491         int pingmin, pingsec;
492         gppi(sesskey, "PingInterval", 0, &pingmin);
493         gppi(sesskey, "PingIntervalSecs", 0, &pingsec);
494         cfg->ping_interval = pingmin * 60 + pingsec;
495     }
496     gppi(sesskey, "TCPNoDelay", 1, &cfg->tcp_nodelay);
497     gppi(sesskey, "TCPKeepalives", 0, &cfg->tcp_keepalives);
498     gpps(sesskey, "TerminalType", "xterm", cfg->termtype,
499          sizeof(cfg->termtype));
500     gpps(sesskey, "TerminalSpeed", "38400,38400", cfg->termspeed,
501          sizeof(cfg->termspeed));
502     {
503         /* This hardcodes a big set of defaults in any new saved
504          * sessions. Let's hope we don't change our mind. */
505         int i;
506         char *def = dupstr("");
507         /* Default: all set to "auto" */
508         for (i = 0; ttymodes[i]; i++) {
509             char *def2 = dupprintf("%s%s=A,", def, ttymodes[i]);
510             sfree(def);
511             def = def2;
512         }
513         gppmap(sesskey, "TerminalModes", def,
514                cfg->ttymodes, lenof(cfg->ttymodes));
515         sfree(def);
516     }
517
518     /* proxy settings */
519     gpps(sesskey, "ProxyExcludeList", "", cfg->proxy_exclude_list,
520          sizeof(cfg->proxy_exclude_list));
521     gppi(sesskey, "ProxyDNS", 1, &i); cfg->proxy_dns = (i+1)%3;
522     gppi(sesskey, "ProxyLocalhost", 0, &cfg->even_proxy_localhost);
523     gppi(sesskey, "ProxyMethod", -1, &cfg->proxy_type);
524     if (cfg->proxy_type == -1) {
525         int i;
526         gppi(sesskey, "ProxyType", 0, &i);
527         if (i == 0)
528             cfg->proxy_type = PROXY_NONE;
529         else if (i == 1)
530             cfg->proxy_type = PROXY_HTTP;
531         else if (i == 3)
532             cfg->proxy_type = PROXY_TELNET;
533         else if (i == 4)
534             cfg->proxy_type = PROXY_CMD;
535         else {
536             gppi(sesskey, "ProxySOCKSVersion", 5, &i);
537             if (i == 5)
538                 cfg->proxy_type = PROXY_SOCKS5;
539             else
540                 cfg->proxy_type = PROXY_SOCKS4;
541         }
542     }
543     gpps(sesskey, "ProxyHost", "proxy", cfg->proxy_host,
544          sizeof(cfg->proxy_host));
545     gppi(sesskey, "ProxyPort", 80, &cfg->proxy_port);
546     gpps(sesskey, "ProxyUsername", "", cfg->proxy_username,
547          sizeof(cfg->proxy_username));
548     gpps(sesskey, "ProxyPassword", "", cfg->proxy_password,
549          sizeof(cfg->proxy_password));
550     gpps(sesskey, "ProxyTelnetCommand", "connect %host %port\\n",
551          cfg->proxy_telnet_command, sizeof(cfg->proxy_telnet_command));
552     gppmap(sesskey, "Environment", "", cfg->environmt, lenof(cfg->environmt));
553     gpps(sesskey, "UserName", "", cfg->username, sizeof(cfg->username));
554     gpps(sesskey, "LocalUserName", "", cfg->localusername,
555          sizeof(cfg->localusername));
556     gppi(sesskey, "NoPTY", 0, &cfg->nopty);
557     gppi(sesskey, "Compression", 0, &cfg->compression);
558     gppi(sesskey, "AgentFwd", 0, &cfg->agentfwd);
559     gppi(sesskey, "ChangeUsername", 0, &cfg->change_username);
560     gprefs(sesskey, "Cipher", "\0",
561            ciphernames, CIPHER_MAX, cfg->ssh_cipherlist);
562     {
563         /* Backward-compatibility: we used to have an option to
564          * disable gex under the "bugs" panel after one report of
565          * a server which offered it then choked, but we never got
566          * a server version string or any other reports. */
567         char *default_kexes;
568         gppi(sesskey, "BugDHGEx2", 0, &i); i = 2-i;
569         if (i == FORCE_ON)
570             default_kexes = "dh-group14-sha1,dh-group1-sha1,WARN,dh-gex-sha1";
571         else
572             default_kexes = "dh-gex-sha1,dh-group14-sha1,dh-group1-sha1,WARN";
573         gprefs(sesskey, "KEX", default_kexes,
574                kexnames, KEX_MAX, cfg->ssh_kexlist);
575     }
576     gppi(sesskey, "RekeyTime", 60, &cfg->ssh_rekey_time);
577     gpps(sesskey, "RekeyBytes", "1G", cfg->ssh_rekey_data,
578          sizeof(cfg->ssh_rekey_data));
579     gppi(sesskey, "SshProt", 2, &cfg->sshprot);
580     gppi(sesskey, "SSH2DES", 0, &cfg->ssh2_des_cbc);
581     gppi(sesskey, "SshNoAuth", 0, &cfg->ssh_no_userauth);
582     gppi(sesskey, "AuthTIS", 0, &cfg->try_tis_auth);
583     gppi(sesskey, "AuthKI", 1, &cfg->try_ki_auth);
584     gppi(sesskey, "SshNoShell", 0, &cfg->ssh_no_shell);
585     gppfile(sesskey, "PublicKeyFile", &cfg->keyfile);
586     gpps(sesskey, "RemoteCommand", "", cfg->remote_cmd,
587          sizeof(cfg->remote_cmd));
588     gppi(sesskey, "RFCEnviron", 0, &cfg->rfc_environ);
589     gppi(sesskey, "PassiveTelnet", 0, &cfg->passive_telnet);
590     gppi(sesskey, "BackspaceIsDelete", 1, &cfg->bksp_is_delete);
591     gppi(sesskey, "RXVTHomeEnd", 0, &cfg->rxvt_homeend);
592     gppi(sesskey, "LinuxFunctionKeys", 0, &cfg->funky_type);
593     gppi(sesskey, "NoApplicationKeys", 0, &cfg->no_applic_k);
594     gppi(sesskey, "NoApplicationCursors", 0, &cfg->no_applic_c);
595     gppi(sesskey, "NoMouseReporting", 0, &cfg->no_mouse_rep);
596     gppi(sesskey, "NoRemoteResize", 0, &cfg->no_remote_resize);
597     gppi(sesskey, "NoAltScreen", 0, &cfg->no_alt_screen);
598     gppi(sesskey, "NoRemoteWinTitle", 0, &cfg->no_remote_wintitle);
599     gppi(sesskey, "NoRemoteQTitle", 1, &cfg->no_remote_qtitle);
600     gppi(sesskey, "NoDBackspace", 0, &cfg->no_dbackspace);
601     gppi(sesskey, "NoRemoteCharset", 0, &cfg->no_remote_charset);
602     gppi(sesskey, "ApplicationCursorKeys", 0, &cfg->app_cursor);
603     gppi(sesskey, "ApplicationKeypad", 0, &cfg->app_keypad);
604     gppi(sesskey, "NetHackKeypad", 0, &cfg->nethack_keypad);
605     gppi(sesskey, "AltF4", 1, &cfg->alt_f4);
606     gppi(sesskey, "AltSpace", 0, &cfg->alt_space);
607     gppi(sesskey, "AltOnly", 0, &cfg->alt_only);
608     gppi(sesskey, "ComposeKey", 0, &cfg->compose_key);
609     gppi(sesskey, "CtrlAltKeys", 1, &cfg->ctrlaltkeys);
610     gppi(sesskey, "TelnetKey", 0, &cfg->telnet_keyboard);
611     gppi(sesskey, "TelnetRet", 1, &cfg->telnet_newline);
612     gppi(sesskey, "LocalEcho", AUTO, &cfg->localecho);
613     gppi(sesskey, "LocalEdit", AUTO, &cfg->localedit);
614     gpps(sesskey, "Answerback", "PuTTY", cfg->answerback,
615          sizeof(cfg->answerback));
616     gppi(sesskey, "AlwaysOnTop", 0, &cfg->alwaysontop);
617     gppi(sesskey, "FullScreenOnAltEnter", 0, &cfg->fullscreenonaltenter);
618     gppi(sesskey, "HideMousePtr", 0, &cfg->hide_mouseptr);
619     gppi(sesskey, "SunkenEdge", 0, &cfg->sunken_edge);
620     gppi(sesskey, "WindowBorder", 1, &cfg->window_border);
621     gppi(sesskey, "CurType", 0, &cfg->cursor_type);
622     gppi(sesskey, "BlinkCur", 0, &cfg->blink_cur);
623     /* pedantic compiler tells me I can't use &cfg->beep as an int * :-) */
624     gppi(sesskey, "Beep", 1, &cfg->beep);
625     gppi(sesskey, "BeepInd", 0, &cfg->beep_ind);
626     gppfile(sesskey, "BellWaveFile", &cfg->bell_wavefile);
627     gppi(sesskey, "BellOverload", 1, &cfg->bellovl);
628     gppi(sesskey, "BellOverloadN", 5, &cfg->bellovl_n);
629     gppi(sesskey, "BellOverloadT", 2*TICKSPERSEC, &i);
630     cfg->bellovl_t = i
631 #ifdef PUTTY_UNIX_H
632                     / 1000
633 #endif
634         ;
635     gppi(sesskey, "BellOverloadS", 5*TICKSPERSEC, &i);
636     cfg->bellovl_s = i
637 #ifdef PUTTY_UNIX_H
638                     / 1000
639 #endif
640         ;
641     gppi(sesskey, "ScrollbackLines", 200, &cfg->savelines);
642     gppi(sesskey, "DECOriginMode", 0, &cfg->dec_om);
643     gppi(sesskey, "AutoWrapMode", 1, &cfg->wrap_mode);
644     gppi(sesskey, "LFImpliesCR", 0, &cfg->lfhascr);
645     gppi(sesskey, "DisableArabicShaping", 0, &cfg->arabicshaping);
646     gppi(sesskey, "DisableBidi", 0, &cfg->bidi);
647     gppi(sesskey, "WinNameAlways", 1, &cfg->win_name_always);
648     gpps(sesskey, "WinTitle", "", cfg->wintitle, sizeof(cfg->wintitle));
649     gppi(sesskey, "TermWidth", 80, &cfg->width);
650     gppi(sesskey, "TermHeight", 24, &cfg->height);
651     gppfont(sesskey, "Font", &cfg->font);
652     gppi(sesskey, "FontVTMode", VT_UNICODE, (int *) &cfg->vtmode);
653     gppi(sesskey, "UseSystemColours", 0, &cfg->system_colour);
654     gppi(sesskey, "TryPalette", 0, &cfg->try_palette);
655     gppi(sesskey, "ANSIColour", 1, &cfg->ansi_colour);
656     gppi(sesskey, "Xterm256Colour", 1, &cfg->xterm_256_colour);
657     gppi(sesskey, "BoldAsColour", 1, &cfg->bold_colour);
658
659     for (i = 0; i < 22; i++) {
660         static const char *const defaults[] = {
661             "187,187,187", "255,255,255", "0,0,0", "85,85,85", "0,0,0",
662             "0,255,0", "0,0,0", "85,85,85", "187,0,0", "255,85,85",
663             "0,187,0", "85,255,85", "187,187,0", "255,255,85", "0,0,187",
664             "85,85,255", "187,0,187", "255,85,255", "0,187,187",
665             "85,255,255", "187,187,187", "255,255,255"
666         };
667         char buf[20], buf2[30];
668         int c0, c1, c2;
669         sprintf(buf, "Colour%d", i);
670         gpps(sesskey, buf, defaults[i], buf2, sizeof(buf2));
671         if (sscanf(buf2, "%d,%d,%d", &c0, &c1, &c2) == 3) {
672             cfg->colours[i][0] = c0;
673             cfg->colours[i][1] = c1;
674             cfg->colours[i][2] = c2;
675         }
676     }
677     gppi(sesskey, "RawCNP", 0, &cfg->rawcnp);
678     gppi(sesskey, "PasteRTF", 0, &cfg->rtf_paste);
679     gppi(sesskey, "MouseIsXterm", 0, &cfg->mouse_is_xterm);
680     gppi(sesskey, "RectSelect", 0, &cfg->rect_select);
681     gppi(sesskey, "MouseOverride", 1, &cfg->mouse_override);
682     for (i = 0; i < 256; i += 32) {
683         static const char *const defaults[] = {
684             "0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0",
685             "0,1,2,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1",
686             "1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,2",
687             "1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1",
688             "1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1",
689             "1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1",
690             "2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2",
691             "2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2"
692         };
693         char buf[20], buf2[256], *p;
694         int j;
695         sprintf(buf, "Wordness%d", i);
696         gpps(sesskey, buf, defaults[i / 32], buf2, sizeof(buf2));
697         p = buf2;
698         for (j = i; j < i + 32; j++) {
699             char *q = p;
700             while (*p && *p != ',')
701                 p++;
702             if (*p == ',')
703                 *p++ = '\0';
704             cfg->wordness[j] = atoi(q);
705         }
706     }
707     /*
708      * The empty default for LineCodePage will be converted later
709      * into a plausible default for the locale.
710      */
711     gpps(sesskey, "LineCodePage", "", cfg->line_codepage,
712          sizeof(cfg->line_codepage));
713     gppi(sesskey, "CJKAmbigWide", 0, &cfg->cjk_ambig_wide);
714     gppi(sesskey, "UTF8Override", 1, &cfg->utf8_override);
715     gpps(sesskey, "Printer", "", cfg->printer, sizeof(cfg->printer));
716     gppi (sesskey, "CapsLockCyr", 0, &cfg->xlat_capslockcyr);
717     gppi(sesskey, "ScrollBar", 1, &cfg->scrollbar);
718     gppi(sesskey, "ScrollBarFullScreen", 0, &cfg->scrollbar_in_fullscreen);
719     gppi(sesskey, "ScrollOnKey", 0, &cfg->scroll_on_key);
720     gppi(sesskey, "ScrollOnDisp", 1, &cfg->scroll_on_disp);
721     gppi(sesskey, "EraseToScrollback", 1, &cfg->erase_to_scrollback);
722     gppi(sesskey, "LockSize", 0, &cfg->resize_action);
723     gppi(sesskey, "BCE", 1, &cfg->bce);
724     gppi(sesskey, "BlinkText", 0, &cfg->blinktext);
725     gppi(sesskey, "X11Forward", 0, &cfg->x11_forward);
726     gpps(sesskey, "X11Display", "", cfg->x11_display,
727          sizeof(cfg->x11_display));
728     gppi(sesskey, "X11AuthType", X11_MIT, &cfg->x11_auth);
729
730     gppi(sesskey, "LocalPortAcceptAll", 0, &cfg->lport_acceptall);
731     gppi(sesskey, "RemotePortAcceptAll", 0, &cfg->rport_acceptall);
732     gppmap(sesskey, "PortForwardings", "", cfg->portfwd, lenof(cfg->portfwd));
733     gppi(sesskey, "BugIgnore1", 0, &i); cfg->sshbug_ignore1 = 2-i;
734     gppi(sesskey, "BugPlainPW1", 0, &i); cfg->sshbug_plainpw1 = 2-i;
735     gppi(sesskey, "BugRSA1", 0, &i); cfg->sshbug_rsa1 = 2-i;
736     {
737         int i;
738         gppi(sesskey, "BugHMAC2", 0, &i); cfg->sshbug_hmac2 = 2-i;
739         if (cfg->sshbug_hmac2 == AUTO) {
740             gppi(sesskey, "BuggyMAC", 0, &i);
741             if (i == 1)
742                 cfg->sshbug_hmac2 = FORCE_ON;
743         }
744     }
745     gppi(sesskey, "BugDeriveKey2", 0, &i); cfg->sshbug_derivekey2 = 2-i;
746     gppi(sesskey, "BugRSAPad2", 0, &i); cfg->sshbug_rsapad2 = 2-i;
747     gppi(sesskey, "BugPKSessID2", 0, &i); cfg->sshbug_pksessid2 = 2-i;
748     gppi(sesskey, "BugRekey2", 0, &i); cfg->sshbug_rekey2 = 2-i;
749     gppi(sesskey, "StampUtmp", 1, &cfg->stamp_utmp);
750     gppi(sesskey, "LoginShell", 1, &cfg->login_shell);
751     gppi(sesskey, "ScrollbarOnLeft", 0, &cfg->scrollbar_on_left);
752     gppi(sesskey, "ShadowBold", 0, &cfg->shadowbold);
753     gppfont(sesskey, "BoldFont", &cfg->boldfont);
754     gppfont(sesskey, "WideFont", &cfg->widefont);
755     gppfont(sesskey, "WideBoldFont", &cfg->wideboldfont);
756     gppi(sesskey, "ShadowBoldOffset", 1, &cfg->shadowboldoffset);
757 }
758
759 void do_defaults(char *session, Config * cfg)
760 {
761     load_settings(session, (session != NULL && *session), cfg);
762 }
763
764 static int sessioncmp(const void *av, const void *bv)
765 {
766     const char *a = *(const char *const *) av;
767     const char *b = *(const char *const *) bv;
768
769     /*
770      * Alphabetical order, except that "Default Settings" is a
771      * special case and comes first.
772      */
773     if (!strcmp(a, "Default Settings"))
774         return -1;                     /* a comes first */
775     if (!strcmp(b, "Default Settings"))
776         return +1;                     /* b comes first */
777     /*
778      * FIXME: perhaps we should ignore the first & in determining
779      * sort order.
780      */
781     return strcmp(a, b);               /* otherwise, compare normally */
782 }
783
784 void get_sesslist(struct sesslist *list, int allocate)
785 {
786     char otherbuf[2048];
787     int buflen, bufsize, i;
788     char *p, *ret;
789     void *handle;
790
791     if (allocate) {
792
793         buflen = bufsize = 0;
794         list->buffer = NULL;
795         if ((handle = enum_settings_start()) != NULL) {
796             do {
797                 ret = enum_settings_next(handle, otherbuf, sizeof(otherbuf));
798                 if (ret) {
799                     int len = strlen(otherbuf) + 1;
800                     if (bufsize < buflen + len) {
801                         bufsize = buflen + len + 2048;
802                         list->buffer = sresize(list->buffer, bufsize, char);
803                     }
804                     strcpy(list->buffer + buflen, otherbuf);
805                     buflen += strlen(list->buffer + buflen) + 1;
806                 }
807             } while (ret);
808             enum_settings_finish(handle);
809         }
810         list->buffer = sresize(list->buffer, buflen + 1, char);
811         list->buffer[buflen] = '\0';
812
813         /*
814          * Now set up the list of sessions. Note that "Default
815          * Settings" must always be claimed to exist, even if it
816          * doesn't really.
817          */
818
819         p = list->buffer;
820         list->nsessions = 1;           /* "Default Settings" counts as one */
821         while (*p) {
822             if (strcmp(p, "Default Settings"))
823                 list->nsessions++;
824             while (*p)
825                 p++;
826             p++;
827         }
828
829         list->sessions = snewn(list->nsessions + 1, char *);
830         list->sessions[0] = "Default Settings";
831         p = list->buffer;
832         i = 1;
833         while (*p) {
834             if (strcmp(p, "Default Settings"))
835                 list->sessions[i++] = p;
836             while (*p)
837                 p++;
838             p++;
839         }
840
841         qsort(list->sessions, i, sizeof(char *), sessioncmp);
842     } else {
843         sfree(list->buffer);
844         sfree(list->sessions);
845         list->buffer = NULL;
846         list->sessions = NULL;
847     }
848 }