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1 /*
2  * settings.c: read and write saved sessions.
3  */
4
5 #include <windows.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 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 void gpps(void *handle, char *name, char *def, char *val, int len)
25 {
26     if (!read_setting_s(handle, name, val, len)) {
27         strncpy(val, def, len);
28         val[len - 1] = '\0';
29     }
30 }
31
32 static void gppi(void *handle, char *name, int def, int *i)
33 {
34     *i = read_setting_i(handle, name, def);
35 }
36
37 static int key2val(const struct keyval *mapping, int nmaps, char *key)
38 {
39     int i;
40     for (i = 0; i < nmaps; i++)
41         if (!strcmp(mapping[i].s, key)) return mapping[i].v;
42     return -1;
43 }
44
45 static const char *val2key(const struct keyval *mapping, int nmaps, int val)
46 {
47     int i;
48     for (i = 0; i < nmaps; i++)
49         if (mapping[i].v == val) return mapping[i].s;
50     return NULL;
51 }
52
53 /*
54  * Helper function to parse a comma-separated list of strings into
55  * a preference list array of values. Any missing values are added
56  * to the end and duplicates are weeded.
57  * XXX: assumes vals in 'mapping' are small +ve integers
58  */
59 static void gprefs(void *sesskey, char *name, char *def,
60                    const struct keyval *mapping, int nvals,
61                    int *array)
62 {
63     char commalist[80];
64     int n;
65     unsigned long seen = 0;            /* bitmap for weeding dups etc */
66     gpps(sesskey, name, def, commalist, sizeof(commalist));
67
68     /* Grotty parsing of commalist. */
69     n = 0;
70     do {
71         int v;
72         char *key;
73         key = strtok(n==0 ? commalist : NULL, ","); /* sorry */
74         if (!key) break;
75         if (((v = key2val(mapping, nvals, key)) != -1) &&
76             !(seen & 1<<v)) {
77             array[n] = v;
78             n++;
79             seen |= 1<<v;
80         }
81     } while (n < nvals);
82     /* Add any missing values (backward compatibility ect). */
83     {
84         int i;
85         for (i = 0; i < nvals; i++) {
86             if (!(seen & 1<<mapping[i].v)) {
87                 array[n] = mapping[i].v;
88                 n++;
89             }
90         }
91     }
92 }
93
94 /* 
95  * Write out a preference list.
96  */
97 static void wprefs(void *sesskey, char *name,
98                    const struct keyval *mapping, int nvals,
99                    int *array)
100 {
101     char buf[80] = "";  /* XXX assumed big enough */
102     int l = sizeof(buf)-1, i;
103     buf[l] = '\0';
104     for (i = 0; l > 0 && i < nvals; i++) {
105         const char *s = val2key(mapping, nvals, array[i]);
106         if (s) {
107             int sl = strlen(s);
108             if (i > 0) {
109                 strncat(buf, ",", l);
110                 l--;
111             }
112             strncat(buf, s, l);
113             l -= sl;
114         }
115     }
116     write_setting_s(sesskey, name, buf);
117 }
118
119 void save_settings(char *section, int do_host, Config * cfg)
120 {
121     int i;
122     char *p;
123     void *sesskey;
124
125     sesskey = open_settings_w(section);
126     if (!sesskey)
127         return;
128
129     write_setting_i(sesskey, "Present", 1);
130     if (do_host) {
131         write_setting_s(sesskey, "HostName", cfg->host);
132         write_setting_s(sesskey, "LogFileName", cfg->logfilename);
133         write_setting_i(sesskey, "LogType", cfg->logtype);
134         write_setting_i(sesskey, "LogFileClash", cfg->logxfovr);
135     }
136     p = "raw";
137     for (i = 0; backends[i].name != NULL; i++)
138         if (backends[i].protocol == cfg->protocol) {
139             p = backends[i].name;
140             break;
141         }
142     write_setting_s(sesskey, "Protocol", p);
143     write_setting_i(sesskey, "PortNumber", cfg->port);
144     write_setting_i(sesskey, "CloseOnExit", cfg->close_on_exit);
145     write_setting_i(sesskey, "WarnOnClose", !!cfg->warn_on_close);
146     write_setting_i(sesskey, "PingInterval", cfg->ping_interval / 60);  /* minutes */
147     write_setting_i(sesskey, "PingIntervalSecs", cfg->ping_interval % 60);      /* seconds */
148     write_setting_s(sesskey, "TerminalType", cfg->termtype);
149     write_setting_s(sesskey, "TerminalSpeed", cfg->termspeed);
150     {
151         char buf[2 * sizeof(cfg->environmt)], *p, *q;
152         p = buf;
153         q = cfg->environmt;
154         while (*q) {
155             while (*q) {
156                 int c = *q++;
157                 if (c == '=' || c == ',' || c == '\\')
158                     *p++ = '\\';
159                 if (c == '\t')
160                     c = '=';
161                 *p++ = c;
162             }
163             *p++ = ',';
164             q++;
165         }
166         *p = '\0';
167         write_setting_s(sesskey, "Environment", buf);
168     }
169     write_setting_s(sesskey, "UserName", cfg->username);
170     write_setting_s(sesskey, "LocalUserName", cfg->localusername);
171     write_setting_i(sesskey, "NoPTY", cfg->nopty);
172     write_setting_i(sesskey, "Compression", cfg->compression);
173     write_setting_i(sesskey, "AgentFwd", cfg->agentfwd);
174     wprefs(sesskey, "Cipher", ciphernames, CIPHER_MAX,
175            cfg->ssh_cipherlist);
176     write_setting_i(sesskey, "AuthTIS", cfg->try_tis_auth);
177     write_setting_i(sesskey, "SshProt", cfg->sshprot);
178     write_setting_i(sesskey, "BuggyMAC", cfg->buggymac);
179     write_setting_s(sesskey, "PublicKeyFile", cfg->keyfile);
180     write_setting_s(sesskey, "RemoteCommand", cfg->remote_cmd);
181     write_setting_i(sesskey, "RFCEnviron", cfg->rfc_environ);
182     write_setting_i(sesskey, "PassiveTelnet", cfg->passive_telnet);
183     write_setting_i(sesskey, "BackspaceIsDelete", cfg->bksp_is_delete);
184     write_setting_i(sesskey, "RXVTHomeEnd", cfg->rxvt_homeend);
185     write_setting_i(sesskey, "LinuxFunctionKeys", cfg->funky_type);
186     write_setting_i(sesskey, "NoApplicationKeys", cfg->no_applic_k);
187     write_setting_i(sesskey, "NoApplicationCursors", cfg->no_applic_c);
188     write_setting_i(sesskey, "ApplicationCursorKeys", cfg->app_cursor);
189     write_setting_i(sesskey, "ApplicationKeypad", cfg->app_keypad);
190     write_setting_i(sesskey, "NetHackKeypad", cfg->nethack_keypad);
191     write_setting_i(sesskey, "AltF4", cfg->alt_f4);
192     write_setting_i(sesskey, "AltSpace", cfg->alt_space);
193     write_setting_i(sesskey, "AltOnly", cfg->alt_only);
194     write_setting_i(sesskey, "ComposeKey", cfg->compose_key);
195     write_setting_i(sesskey, "CtrlAltKeys", cfg->ctrlaltkeys);
196     write_setting_i(sesskey, "TelnetKey", cfg->telnet_keyboard);
197     write_setting_i(sesskey, "LocalEcho", cfg->localecho);
198     write_setting_i(sesskey, "LocalEdit", cfg->localedit);
199     write_setting_s(sesskey, "Answerback", cfg->answerback);
200     write_setting_i(sesskey, "AlwaysOnTop", cfg->alwaysontop);
201     write_setting_i(sesskey, "FullScreenOnAltEnter", cfg->fullscreenonaltenter);
202     write_setting_i(sesskey, "HideMousePtr", cfg->hide_mouseptr);
203     write_setting_i(sesskey, "SunkenEdge", cfg->sunken_edge);
204     write_setting_i(sesskey, "WindowBorder", cfg->window_border);
205     write_setting_i(sesskey, "CurType", cfg->cursor_type);
206     write_setting_i(sesskey, "BlinkCur", cfg->blink_cur);
207     write_setting_i(sesskey, "Beep", cfg->beep);
208     write_setting_i(sesskey, "BeepInd", cfg->beep_ind);
209     write_setting_s(sesskey, "BellWaveFile", cfg->bell_wavefile);
210     write_setting_i(sesskey, "BellOverload", cfg->bellovl);
211     write_setting_i(sesskey, "BellOverloadN", cfg->bellovl_n);
212     write_setting_i(sesskey, "BellOverloadT", cfg->bellovl_t);
213     write_setting_i(sesskey, "BellOverloadS", cfg->bellovl_s);
214     write_setting_i(sesskey, "ScrollbackLines", cfg->savelines);
215     write_setting_i(sesskey, "DECOriginMode", cfg->dec_om);
216     write_setting_i(sesskey, "AutoWrapMode", cfg->wrap_mode);
217     write_setting_i(sesskey, "LFImpliesCR", cfg->lfhascr);
218     write_setting_i(sesskey, "WinNameAlways", cfg->win_name_always);
219     write_setting_s(sesskey, "WinTitle", cfg->wintitle);
220     write_setting_i(sesskey, "TermWidth", cfg->width);
221     write_setting_i(sesskey, "TermHeight", cfg->height);
222     write_setting_s(sesskey, "Font", cfg->font);
223     write_setting_i(sesskey, "FontIsBold", cfg->fontisbold);
224     write_setting_i(sesskey, "FontCharSet", cfg->fontcharset);
225     write_setting_i(sesskey, "FontHeight", cfg->fontheight);
226     write_setting_i(sesskey, "FontVTMode", cfg->vtmode);
227     write_setting_i(sesskey, "TryPalette", cfg->try_palette);
228     write_setting_i(sesskey, "BoldAsColour", cfg->bold_colour);
229     for (i = 0; i < 22; i++) {
230         char buf[20], buf2[30];
231         sprintf(buf, "Colour%d", i);
232         sprintf(buf2, "%d,%d,%d", cfg->colours[i][0],
233                 cfg->colours[i][1], cfg->colours[i][2]);
234         write_setting_s(sesskey, buf, buf2);
235     }
236     write_setting_i(sesskey, "RawCNP", cfg->rawcnp);
237     write_setting_i(sesskey, "MouseIsXterm", cfg->mouse_is_xterm);
238     write_setting_i(sesskey, "RectSelect", cfg->rect_select);
239     write_setting_i(sesskey, "MouseOverride", cfg->mouse_override);
240     for (i = 0; i < 256; i += 32) {
241         char buf[20], buf2[256];
242         int j;
243         sprintf(buf, "Wordness%d", i);
244         *buf2 = '\0';
245         for (j = i; j < i + 32; j++) {
246             sprintf(buf2 + strlen(buf2), "%s%d",
247                     (*buf2 ? "," : ""), cfg->wordness[j]);
248         }
249         write_setting_s(sesskey, buf, buf2);
250     }
251     write_setting_s(sesskey, "LineCodePage", cfg->line_codepage);
252     write_setting_i(sesskey, "CapsLockCyr", cfg->xlat_capslockcyr);
253     write_setting_i(sesskey, "ScrollBar", cfg->scrollbar);
254     write_setting_i(sesskey, "ScrollBarFullScreen", cfg->scrollbar_in_fullscreen);
255     write_setting_i(sesskey, "ScrollOnKey", cfg->scroll_on_key);
256     write_setting_i(sesskey, "ScrollOnDisp", cfg->scroll_on_disp);
257     write_setting_i(sesskey, "LockSize", cfg->resize_action);
258     write_setting_i(sesskey, "BCE", cfg->bce);
259     write_setting_i(sesskey, "BlinkText", cfg->blinktext);
260     write_setting_i(sesskey, "X11Forward", cfg->x11_forward);
261     write_setting_s(sesskey, "X11Display", cfg->x11_display);
262     write_setting_i(sesskey, "LocalPortAcceptAll", cfg->lport_acceptall);
263     {
264         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
265         p = buf;
266         q = cfg->portfwd;
267         while (*q) {
268             while (*q) {
269                 int c = *q++;
270                 if (c == '=' || c == ',' || c == '\\')
271                     *p++ = '\\';
272                 if (c == '\t')
273                     c = '=';
274                 *p++ = c;
275             }
276             *p++ = ',';
277             q++;
278         }
279         *p = '\0';
280         write_setting_s(sesskey, "PortForwardings", buf);
281     }
282
283     close_settings_w(sesskey);
284 }
285
286 void load_settings(char *section, int do_host, Config * cfg)
287 {
288     int i;
289     char prot[10];
290     void *sesskey;
291
292     sesskey = open_settings_r(section);
293
294     cfg->ssh_subsys = 0;               /* FIXME: load this properly */
295     cfg->remote_cmd_ptr = cfg->remote_cmd;
296     cfg->remote_cmd_ptr2 = NULL;
297
298     gpps(sesskey, "HostName", "", cfg->host, sizeof(cfg->host));
299     gpps(sesskey, "LogFileName", "putty.log",
300          cfg->logfilename, sizeof(cfg->logfilename));
301     gppi(sesskey, "LogType", 0, &cfg->logtype);
302     gppi(sesskey, "LogFileClash", LGXF_ASK, &cfg->logxfovr);
303
304     gpps(sesskey, "Protocol", "default", prot, 10);
305     cfg->protocol = default_protocol;
306     cfg->port = default_port;
307     for (i = 0; backends[i].name != NULL; i++)
308         if (!strcmp(prot, backends[i].name)) {
309             cfg->protocol = backends[i].protocol;
310             gppi(sesskey, "PortNumber", default_port, &cfg->port);
311             break;
312         }
313
314     gppi(sesskey, "CloseOnExit", COE_NORMAL, &cfg->close_on_exit);
315     gppi(sesskey, "WarnOnClose", 1, &cfg->warn_on_close);
316     {
317         /* This is two values for backward compatibility with 0.50/0.51 */
318         int pingmin, pingsec;
319         gppi(sesskey, "PingInterval", 0, &pingmin);
320         gppi(sesskey, "PingIntervalSecs", 0, &pingsec);
321         cfg->ping_interval = pingmin * 60 + pingsec;
322     }
323     gpps(sesskey, "TerminalType", "xterm", cfg->termtype,
324          sizeof(cfg->termtype));
325     gpps(sesskey, "TerminalSpeed", "38400,38400", cfg->termspeed,
326          sizeof(cfg->termspeed));
327     {
328         char buf[2 * sizeof(cfg->environmt)], *p, *q;
329         gpps(sesskey, "Environment", "", buf, sizeof(buf));
330         p = buf;
331         q = cfg->environmt;
332         while (*p) {
333             while (*p && *p != ',') {
334                 int c = *p++;
335                 if (c == '=')
336                     c = '\t';
337                 if (c == '\\')
338                     c = *p++;
339                 *q++ = c;
340             }
341             if (*p == ',')
342                 p++;
343             *q++ = '\0';
344         }
345         *q = '\0';
346     }
347     gpps(sesskey, "UserName", "", cfg->username, sizeof(cfg->username));
348     gpps(sesskey, "LocalUserName", "", cfg->localusername,
349          sizeof(cfg->localusername));
350     gppi(sesskey, "NoPTY", 0, &cfg->nopty);
351     gppi(sesskey, "Compression", 0, &cfg->compression);
352     gppi(sesskey, "AgentFwd", 0, &cfg->agentfwd);
353     gprefs(sesskey, "Cipher", "\0",
354            ciphernames, CIPHER_MAX, cfg->ssh_cipherlist);
355     gppi(sesskey, "SshProt", 1, &cfg->sshprot);
356     gppi(sesskey, "BuggyMAC", 0, &cfg->buggymac);
357     gppi(sesskey, "AuthTIS", 0, &cfg->try_tis_auth);
358     gpps(sesskey, "PublicKeyFile", "", cfg->keyfile, sizeof(cfg->keyfile));
359     gpps(sesskey, "RemoteCommand", "", cfg->remote_cmd,
360          sizeof(cfg->remote_cmd));
361     gppi(sesskey, "RFCEnviron", 0, &cfg->rfc_environ);
362     gppi(sesskey, "PassiveTelnet", 0, &cfg->passive_telnet);
363     gppi(sesskey, "BackspaceIsDelete", 1, &cfg->bksp_is_delete);
364     gppi(sesskey, "RXVTHomeEnd", 0, &cfg->rxvt_homeend);
365     gppi(sesskey, "LinuxFunctionKeys", 0, &cfg->funky_type);
366     gppi(sesskey, "NoApplicationKeys", 0, &cfg->no_applic_k);
367     gppi(sesskey, "NoApplicationCursors", 0, &cfg->no_applic_c);
368     gppi(sesskey, "ApplicationCursorKeys", 0, &cfg->app_cursor);
369     gppi(sesskey, "ApplicationKeypad", 0, &cfg->app_keypad);
370     gppi(sesskey, "NetHackKeypad", 0, &cfg->nethack_keypad);
371     gppi(sesskey, "AltF4", 1, &cfg->alt_f4);
372     gppi(sesskey, "AltSpace", 0, &cfg->alt_space);
373     gppi(sesskey, "AltOnly", 0, &cfg->alt_only);
374     gppi(sesskey, "ComposeKey", 0, &cfg->compose_key);
375     gppi(sesskey, "CtrlAltKeys", 1, &cfg->ctrlaltkeys);
376     gppi(sesskey, "TelnetKey", 0, &cfg->telnet_keyboard);
377     gppi(sesskey, "LocalEcho", LD_BACKEND, &cfg->localecho);
378     gppi(sesskey, "LocalEdit", LD_BACKEND, &cfg->localedit);
379     gpps(sesskey, "Answerback", "PuTTY", cfg->answerback,
380          sizeof(cfg->answerback));
381     gppi(sesskey, "AlwaysOnTop", 0, &cfg->alwaysontop);
382     gppi(sesskey, "FullScreenOnAltEnter", 0, &cfg->fullscreenonaltenter);
383     gppi(sesskey, "HideMousePtr", 0, &cfg->hide_mouseptr);
384     gppi(sesskey, "SunkenEdge", 0, &cfg->sunken_edge);
385     gppi(sesskey, "WindowBorder", 1, &cfg->window_border);
386     gppi(sesskey, "CurType", 0, &cfg->cursor_type);
387     gppi(sesskey, "BlinkCur", 0, &cfg->blink_cur);
388     /* pedantic compiler tells me I can't use &cfg->beep as an int * :-) */
389     gppi(sesskey, "Beep", 1, &i); cfg->beep = i;
390     gppi(sesskey, "BeepInd", 0, &i); cfg->beep_ind = i;
391     gpps(sesskey, "BellWaveFile", "", cfg->bell_wavefile,
392          sizeof(cfg->bell_wavefile));
393     gppi(sesskey, "BellOverload", 1, &cfg->bellovl);
394     gppi(sesskey, "BellOverloadN", 5, &cfg->bellovl_n);
395     gppi(sesskey, "BellOverloadT", 2000, &cfg->bellovl_t);
396     gppi(sesskey, "BellOverloadS", 5000, &cfg->bellovl_s);
397     gppi(sesskey, "ScrollbackLines", 200, &cfg->savelines);
398     gppi(sesskey, "DECOriginMode", 0, &cfg->dec_om);
399     gppi(sesskey, "AutoWrapMode", 1, &cfg->wrap_mode);
400     gppi(sesskey, "LFImpliesCR", 0, &cfg->lfhascr);
401     gppi(sesskey, "WinNameAlways", 0, &cfg->win_name_always);
402     gpps(sesskey, "WinTitle", "", cfg->wintitle, sizeof(cfg->wintitle));
403     gppi(sesskey, "TermWidth", 80, &cfg->width);
404     gppi(sesskey, "TermHeight", 24, &cfg->height);
405     gpps(sesskey, "Font", "Courier New", cfg->font, sizeof(cfg->font));
406     gppi(sesskey, "FontIsBold", 0, &cfg->fontisbold);
407     gppi(sesskey, "FontCharSet", ANSI_CHARSET, &cfg->fontcharset);
408     gppi(sesskey, "FontHeight", 10, &cfg->fontheight);
409     if (cfg->fontheight < 0) {
410         int oldh, newh;
411         HDC hdc = GetDC(NULL);
412         int logpix = GetDeviceCaps(hdc, LOGPIXELSY);
413         ReleaseDC(NULL, hdc);
414
415         oldh = -cfg->fontheight;
416         newh = MulDiv(oldh, 72, logpix) + 1;
417         if (MulDiv(newh, logpix, 72) > oldh)
418             newh--;
419         cfg->fontheight = newh;
420     }
421     gppi(sesskey, "FontVTMode", VT_UNICODE, (int *) &cfg->vtmode);
422     gppi(sesskey, "TryPalette", 0, &cfg->try_palette);
423     gppi(sesskey, "BoldAsColour", 1, &cfg->bold_colour);
424     for (i = 0; i < 22; i++) {
425         static char *defaults[] = {
426             "187,187,187", "255,255,255", "0,0,0", "85,85,85", "0,0,0",
427             "0,255,0", "0,0,0", "85,85,85", "187,0,0", "255,85,85",
428             "0,187,0", "85,255,85", "187,187,0", "255,255,85", "0,0,187",
429             "85,85,255", "187,0,187", "255,85,255", "0,187,187",
430             "85,255,255", "187,187,187", "255,255,255"
431         };
432         char buf[20], buf2[30];
433         int c0, c1, c2;
434         sprintf(buf, "Colour%d", i);
435         gpps(sesskey, buf, defaults[i], buf2, sizeof(buf2));
436         if (sscanf(buf2, "%d,%d,%d", &c0, &c1, &c2) == 3) {
437             cfg->colours[i][0] = c0;
438             cfg->colours[i][1] = c1;
439             cfg->colours[i][2] = c2;
440         }
441     }
442     gppi(sesskey, "RawCNP", 0, &cfg->rawcnp);
443     gppi(sesskey, "MouseIsXterm", 0, &cfg->mouse_is_xterm);
444     gppi(sesskey, "RectSelect", 0, &cfg->rect_select);
445     gppi(sesskey, "MouseOverride", 1, &cfg->mouse_override);
446     for (i = 0; i < 256; i += 32) {
447         static char *defaults[] = {
448             "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",
449             "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",
450             "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",
451             "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",
452             "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",
453             "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",
454             "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",
455             "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"
456         };
457         char buf[20], buf2[256], *p;
458         int j;
459         sprintf(buf, "Wordness%d", i);
460         gpps(sesskey, buf, defaults[i / 32], buf2, sizeof(buf2));
461         p = buf2;
462         for (j = i; j < i + 32; j++) {
463             char *q = p;
464             while (*p && *p != ',')
465                 p++;
466             if (*p == ',')
467                 *p++ = '\0';
468             cfg->wordness[j] = atoi(q);
469         }
470     }
471     /*
472      * The empty default for LineCodePage will be converted later
473      * into a plausible default for the locale.
474      */
475     gpps(sesskey, "LineCodePage", "", cfg->line_codepage,
476          sizeof(cfg->line_codepage));
477     gppi (sesskey, "CapsLockCyr", 0, &cfg->xlat_capslockcyr);
478     gppi(sesskey, "ScrollBar", 1, &cfg->scrollbar);
479     gppi(sesskey, "ScrollBarFullScreen", 0, &cfg->scrollbar_in_fullscreen);
480     gppi(sesskey, "ScrollOnKey", 0, &cfg->scroll_on_key);
481     gppi(sesskey, "ScrollOnDisp", 1, &cfg->scroll_on_disp);
482     gppi(sesskey, "LockSize", 0, &cfg->resize_action);
483     gppi(sesskey, "BCE", 0, &cfg->bce);
484     gppi(sesskey, "BlinkText", 0, &cfg->blinktext);
485     gppi(sesskey, "X11Forward", 0, &cfg->x11_forward);
486     gpps(sesskey, "X11Display", "localhost:0", cfg->x11_display,
487          sizeof(cfg->x11_display));
488
489     gppi(sesskey, "LocalPortAcceptAll", 0, &cfg->lport_acceptall);
490     {
491         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
492         gpps(sesskey, "PortForwardings", "", buf, sizeof(buf));
493         p = buf;
494         q = cfg->portfwd;
495         while (*p) {
496             while (*p && *p != ',') {
497                 int c = *p++;
498                 if (c == '=')
499                     c = '\t';
500                 if (c == '\\')
501                     c = *p++;
502                 *q++ = c;
503             }
504             if (*p == ',')
505                 p++;
506             *q++ = '\0';
507         }
508         *q = '\0';
509     }
510
511     close_settings_r(sesskey);
512 }
513
514 void do_defaults(char *session, Config * cfg)
515 {
516     if (session)
517         load_settings(session, TRUE, cfg);
518     else
519         load_settings("Default Settings", FALSE, cfg);
520 }
521
522 static int sessioncmp(const void *av, const void *bv)
523 {
524     const char *a = *(const char *const *) av;
525     const char *b = *(const char *const *) bv;
526
527     /*
528      * Alphabetical order, except that "Default Settings" is a
529      * special case and comes first.
530      */
531     if (!strcmp(a, "Default Settings"))
532         return -1;                     /* a comes first */
533     if (!strcmp(b, "Default Settings"))
534         return +1;                     /* b comes first */
535     return strcmp(a, b);               /* otherwise, compare normally */
536 }
537
538 void get_sesslist(int allocate)
539 {
540     static char otherbuf[2048];
541     static char *buffer;
542     int buflen, bufsize, i;
543     char *p, *ret;
544     void *handle;
545
546     if (allocate) {
547
548         if ((handle = enum_settings_start()) == NULL)
549             return;
550
551         buflen = bufsize = 0;
552         buffer = NULL;
553         do {
554             ret = enum_settings_next(handle, otherbuf, sizeof(otherbuf));
555             if (ret) {
556                 int len = strlen(otherbuf) + 1;
557                 if (bufsize < buflen + len) {
558                     bufsize = buflen + len + 2048;
559                     buffer = srealloc(buffer, bufsize);
560                 }
561                 strcpy(buffer + buflen, otherbuf);
562                 buflen += strlen(buffer + buflen) + 1;
563             }
564         } while (ret);
565         enum_settings_finish(handle);
566         buffer = srealloc(buffer, buflen + 1);
567         buffer[buflen] = '\0';
568
569         /*
570          * Now set up the list of sessions. Note that "Default
571          * Settings" must always be claimed to exist, even if it
572          * doesn't really.
573          */
574
575         p = buffer;
576         nsessions = 1;                 /* "Default Settings" counts as one */
577         while (*p) {
578             if (strcmp(p, "Default Settings"))
579                 nsessions++;
580             while (*p)
581                 p++;
582             p++;
583         }
584
585         sessions = smalloc((nsessions + 1) * sizeof(char *));
586         sessions[0] = "Default Settings";
587         p = buffer;
588         i = 1;
589         while (*p) {
590             if (strcmp(p, "Default Settings"))
591                 sessions[i++] = p;
592             while (*p)
593                 p++;
594             p++;
595         }
596
597         qsort(sessions, i, sizeof(char *), sessioncmp);
598     } else {
599         sfree(buffer);
600         sfree(sessions);
601     }
602 }