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