settings.c

   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, "HideMousePtr", cfg->hide_mouseptr);
 202     write_setting_i(sesskey, "SunkenEdge", cfg->sunken_edge);
 203     write_setting_i(sesskey, "CurType", cfg->cursor_type);
 204     write_setting_i(sesskey, "BlinkCur", cfg->blink_cur);
 205     write_setting_i(sesskey, "Beep", cfg->beep);
 206     write_setting_i(sesskey, "BeepInd", cfg->beep_ind);
 207     write_setting_s(sesskey, "BellWaveFile", cfg->bell_wavefile);
 208     write_setting_i(sesskey, "BellOverload", cfg->bellovl);
 209     write_setting_i(sesskey, "BellOverloadN", cfg->bellovl_n);
 210     write_setting_i(sesskey, "BellOverloadT", cfg->bellovl_t);
 211     write_setting_i(sesskey, "BellOverloadS", cfg->bellovl_s);
 212     write_setting_i(sesskey, "ScrollbackLines", cfg->savelines);
 213     write_setting_i(sesskey, "DECOriginMode", cfg->dec_om);
 214     write_setting_i(sesskey, "AutoWrapMode", cfg->wrap_mode);
 215     write_setting_i(sesskey, "LFImpliesCR", cfg->lfhascr);
 216     write_setting_i(sesskey, "WinNameAlways", cfg->win_name_always);
 217     write_setting_s(sesskey, "WinTitle", cfg->wintitle);
 218     write_setting_i(sesskey, "TermWidth", cfg->width);
 219     write_setting_i(sesskey, "TermHeight", cfg->height);
 220     write_setting_s(sesskey, "Font", cfg->font);
 221     write_setting_i(sesskey, "FontIsBold", cfg->fontisbold);
 222     write_setting_i(sesskey, "FontCharSet", cfg->fontcharset);
 223     write_setting_i(sesskey, "FontHeight", cfg->fontheight);
 224     write_setting_i(sesskey, "FontVTMode", cfg->vtmode);
 225     write_setting_i(sesskey, "TryPalette", cfg->try_palette);
 226     write_setting_i(sesskey, "BoldAsColour", cfg->bold_colour);
 227     for (i = 0; i < 22; i++) {
 228         char buf[20], buf2[30];
 229         sprintf(buf, "Colour%d", i);
 230         sprintf(buf2, "%d,%d,%d", cfg->colours[i][0],
 231                 cfg->colours[i][1], cfg->colours[i][2]);
 232         write_setting_s(sesskey, buf, buf2);
 233     }
 234     write_setting_i(sesskey, "RawCNP", cfg->rawcnp);
 235     write_setting_i(sesskey, "MouseIsXterm", cfg->mouse_is_xterm);
 236     write_setting_i(sesskey, "MouseOverride", cfg->mouse_override);
 237     for (i = 0; i < 256; i += 32) {
 238         char buf[20], buf2[256];
 239         int j;
 240         sprintf(buf, "Wordness%d", i);
 241         *buf2 = '\0';
 242         for (j = i; j < i + 32; j++) {
 243             sprintf(buf2 + strlen(buf2), "%s%d",
 244                     (*buf2 ? "," : ""), cfg->wordness[j]);
 245         }
 246         write_setting_s(sesskey, buf, buf2);
 247     }
 248     write_setting_s(sesskey, "LineCodePage", cfg->line_codepage);
 249     write_setting_i(sesskey, "ScrollBar", cfg->scrollbar);
 250     write_setting_i(sesskey, "ScrollOnKey", cfg->scroll_on_key);
 251     write_setting_i(sesskey, "ScrollOnDisp", cfg->scroll_on_disp);
 252     write_setting_i(sesskey, "LockSize", cfg->locksize);
 253     write_setting_i(sesskey, "BCE", cfg->bce);
 254     write_setting_i(sesskey, "BlinkText", cfg->blinktext);
 255     write_setting_i(sesskey, "X11Forward", cfg->x11_forward);
 256     write_setting_s(sesskey, "X11Display", cfg->x11_display);
 257     write_setting_i(sesskey, "LocalPortAcceptAll", cfg->lport_acceptall);
 258     {
 259         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
 260         p = buf;
 261         q = cfg->portfwd;
 262         while (*q) {
 263             while (*q) {
 264                 int c = *q++;
 265                 if (c == '=' || c == ',' || c == '\\')
 266                     *p++ = '\\';
 267                 if (c == '\t')
 268                     c = '=';
 269                 *p++ = c;
 270             }
 271             *p++ = ',';
 272             q++;
 273         }
 274         *p = '\0';
 275         write_setting_s(sesskey, "PortForwardings", buf);
 276     }
 277
 278     close_settings_w(sesskey);
 279 }
 280
 281 void load_settings(char *section, int do_host, Config * cfg)
 282 {
 283     int i;
 284     char prot[10];
 285     void *sesskey;
 286
 287     sesskey = open_settings_r(section);
 288
 289     cfg->ssh_subsys = 0;               /* FIXME: load this properly */
 290     cfg->remote_cmd_ptr = cfg->remote_cmd;
 291     cfg->remote_cmd_ptr2 = NULL;
 292
 293     gpps(sesskey, "HostName", "", cfg->host, sizeof(cfg->host));
 294     gpps(sesskey, "LogFileName", "putty.log",
 295          cfg->logfilename, sizeof(cfg->logfilename));
 296     gppi(sesskey, "LogType", 0, &cfg->logtype);
 297     gppi(sesskey, "LogFileClash", LGXF_ASK, &cfg->logxfovr);
 298
 299     gpps(sesskey, "Protocol", "default", prot, 10);
 300     cfg->protocol = default_protocol;
 301     cfg->port = default_port;
 302     for (i = 0; backends[i].name != NULL; i++)
 303         if (!strcmp(prot, backends[i].name)) {
 304             cfg->protocol = backends[i].protocol;
 305             gppi(sesskey, "PortNumber", default_port, &cfg->port);
 306             break;
 307         }
 308
 309     gppi(sesskey, "CloseOnExit", COE_NORMAL, &cfg->close_on_exit);
 310     gppi(sesskey, "WarnOnClose", 1, &cfg->warn_on_close);
 311     {
 312         /* This is two values for backward compatibility with 0.50/0.51 */
 313         int pingmin, pingsec;
 314         gppi(sesskey, "PingInterval", 0, &pingmin);
 315         gppi(sesskey, "PingIntervalSecs", 0, &pingsec);
 316         cfg->ping_interval = pingmin * 60 + pingsec;
 317     }
 318     gpps(sesskey, "TerminalType", "xterm", cfg->termtype,
 319          sizeof(cfg->termtype));
 320     gpps(sesskey, "TerminalSpeed", "38400,38400", cfg->termspeed,
 321          sizeof(cfg->termspeed));
 322     {
 323         char buf[2 * sizeof(cfg->environmt)], *p, *q;
 324         gpps(sesskey, "Environment", "", buf, sizeof(buf));
 325         p = buf;
 326         q = cfg->environmt;
 327         while (*p) {
 328             while (*p && *p != ',') {
 329                 int c = *p++;
 330                 if (c == '=')
 331                     c = '\t';
 332                 if (c == '\\')
 333                     c = *p++;
 334                 *q++ = c;
 335             }
 336             if (*p == ',')
 337                 p++;
 338             *q++ = '\0';
 339         }
 340         *q = '\0';
 341     }
 342     gpps(sesskey, "UserName", "", cfg->username, sizeof(cfg->username));
 343     gpps(sesskey, "LocalUserName", "", cfg->localusername,
 344          sizeof(cfg->localusername));
 345     gppi(sesskey, "NoPTY", 0, &cfg->nopty);
 346     gppi(sesskey, "Compression", 0, &cfg->compression);
 347     gppi(sesskey, "AgentFwd", 0, &cfg->agentfwd);
 348     gprefs(sesskey, "Cipher", "\0",
 349            ciphernames, CIPHER_MAX, cfg->ssh_cipherlist);
 350     gppi(sesskey, "SshProt", 1, &cfg->sshprot);
 351     gppi(sesskey, "BuggyMAC", 0, &cfg->buggymac);
 352     gppi(sesskey, "AuthTIS", 0, &cfg->try_tis_auth);
 353     gpps(sesskey, "PublicKeyFile", "", cfg->keyfile, sizeof(cfg->keyfile));
 354     gpps(sesskey, "RemoteCommand", "", cfg->remote_cmd,
 355          sizeof(cfg->remote_cmd));
 356     gppi(sesskey, "RFCEnviron", 0, &cfg->rfc_environ);
 357     gppi(sesskey, "PassiveTelnet", 0, &cfg->passive_telnet);
 358     gppi(sesskey, "BackspaceIsDelete", 1, &cfg->bksp_is_delete);
 359     gppi(sesskey, "RXVTHomeEnd", 0, &cfg->rxvt_homeend);
 360     gppi(sesskey, "LinuxFunctionKeys", 0, &cfg->funky_type);
 361     gppi(sesskey, "NoApplicationKeys", 0, &cfg->no_applic_k);
 362     gppi(sesskey, "NoApplicationCursors", 0, &cfg->no_applic_c);
 363     gppi(sesskey, "ApplicationCursorKeys", 0, &cfg->app_cursor);
 364     gppi(sesskey, "ApplicationKeypad", 0, &cfg->app_keypad);
 365     gppi(sesskey, "NetHackKeypad", 0, &cfg->nethack_keypad);
 366     gppi(sesskey, "AltF4", 1, &cfg->alt_f4);
 367     gppi(sesskey, "AltSpace", 0, &cfg->alt_space);
 368     gppi(sesskey, "AltOnly", 0, &cfg->alt_only);
 369     gppi(sesskey, "ComposeKey", 0, &cfg->compose_key);
 370     gppi(sesskey, "CtrlAltKeys", 1, &cfg->ctrlaltkeys);
 371     gppi(sesskey, "TelnetKey", 0, &cfg->telnet_keyboard);
 372     gppi(sesskey, "LocalEcho", LD_BACKEND, &cfg->localecho);
 373     gppi(sesskey, "LocalEdit", LD_BACKEND, &cfg->localedit);
 374     gpps(sesskey, "Answerback", "PuTTY", cfg->answerback,
 375          sizeof(cfg->answerback));
 376     gppi(sesskey, "AlwaysOnTop", 0, &cfg->alwaysontop);
 377     gppi(sesskey, "HideMousePtr", 0, &cfg->hide_mouseptr);
 378     gppi(sesskey, "SunkenEdge", 0, &cfg->sunken_edge);
 379     gppi(sesskey, "CurType", 0, &cfg->cursor_type);
 380     gppi(sesskey, "BlinkCur", 0, &cfg->blink_cur);
 381     /* pedantic compiler tells me I can't use &cfg->beep as an int * :-) */
 382     gppi(sesskey, "Beep", 1, &i); cfg->beep = i;
 383     gppi(sesskey, "BeepInd", 0, &i); cfg->beep_ind = i;
 384     gpps(sesskey, "BellWaveFile", "", cfg->bell_wavefile,
 385          sizeof(cfg->bell_wavefile));
 386     gppi(sesskey, "BellOverload", 1, &cfg->bellovl);
 387     gppi(sesskey, "BellOverloadN", 5, &cfg->bellovl_n);
 388     gppi(sesskey, "BellOverloadT", 2000, &cfg->bellovl_t);
 389     gppi(sesskey, "BellOverloadS", 5000, &cfg->bellovl_s);
 390     gppi(sesskey, "ScrollbackLines", 200, &cfg->savelines);
 391     gppi(sesskey, "DECOriginMode", 0, &cfg->dec_om);
 392     gppi(sesskey, "AutoWrapMode", 1, &cfg->wrap_mode);
 393     gppi(sesskey, "LFImpliesCR", 0, &cfg->lfhascr);
 394     gppi(sesskey, "WinNameAlways", 0, &cfg->win_name_always);
 395     gpps(sesskey, "WinTitle", "", cfg->wintitle, sizeof(cfg->wintitle));
 396     gppi(sesskey, "TermWidth", 80, &cfg->width);
 397     gppi(sesskey, "TermHeight", 24, &cfg->height);
 398     gpps(sesskey, "Font", "Courier", cfg->font, sizeof(cfg->font));
 399     gppi(sesskey, "FontIsBold", 0, &cfg->fontisbold);
 400     gppi(sesskey, "FontCharSet", ANSI_CHARSET, &cfg->fontcharset);
 401     gppi(sesskey, "FontHeight", 10, &cfg->fontheight);
 402     if (cfg->fontheight < 0) {
 403         int oldh, newh;
 404         HDC hdc = GetDC(NULL);
 405         int logpix = GetDeviceCaps(hdc, LOGPIXELSY);
 406         ReleaseDC(NULL, hdc);
 407
 408         oldh = -cfg->fontheight;
 409         newh = MulDiv(oldh, 72, logpix) + 1;
 410         if (MulDiv(newh, logpix, 72) > oldh)
 411             newh--;
 412         cfg->fontheight = newh;
 413     }
 414     gppi(sesskey, "FontVTMode", VT_OEMANSI, (int *) &cfg->vtmode);
 415     gppi(sesskey, "TryPalette", 0, &cfg->try_palette);
 416     gppi(sesskey, "BoldAsColour", 1, &cfg->bold_colour);
 417     for (i = 0; i < 22; i++) {
 418         static char *defaults[] = {
 419             "187,187,187", "255,255,255", "0,0,0", "85,85,85", "0,0,0",
 420             "0,255,0", "0,0,0", "85,85,85", "187,0,0", "255,85,85",
 421             "0,187,0", "85,255,85", "187,187,0", "255,255,85", "0,0,187",
 422             "85,85,255", "187,0,187", "255,85,255", "0,187,187",
 423             "85,255,255", "187,187,187", "255,255,255"
 424         };
 425         char buf[20], buf2[30];
 426         int c0, c1, c2;
 427         sprintf(buf, "Colour%d", i);
 428         gpps(sesskey, buf, defaults[i], buf2, sizeof(buf2));
 429         if (sscanf(buf2, "%d,%d,%d", &c0, &c1, &c2) == 3) {
 430             cfg->colours[i][0] = c0;
 431             cfg->colours[i][1] = c1;
 432             cfg->colours[i][2] = c2;
 433         }
 434     }
 435     gppi(sesskey, "RawCNP", 0, &cfg->rawcnp);
 436     gppi(sesskey, "MouseIsXterm", 0, &cfg->mouse_is_xterm);
 437     gppi(sesskey, "MouseOverride", 1, &cfg->mouse_override);
 438     for (i = 0; i < 256; i += 32) {
 439         static char *defaults[] = {
 440             "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",
 441             "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",
 442             "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",
 443             "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",
 444             "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",
 445             "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",
 446             "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",
 447             "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"
 448         };
 449         char buf[20], buf2[256], *p;
 450         int j;
 451         sprintf(buf, "Wordness%d", i);
 452         gpps(sesskey, buf, defaults[i / 32], buf2, sizeof(buf2));
 453         p = buf2;
 454         for (j = i; j < i + 32; j++) {
 455             char *q = p;
 456             while (*p && *p != ',')
 457                 p++;
 458             if (*p == ',')
 459                 *p++ = '\0';
 460             cfg->wordness[j] = atoi(q);
 461         }
 462     }
 463     /*
 464      * The empty default for LineCodePage will be converted later
 465      * into a plausible default for the locale.
 466      */
 467     gpps(sesskey, "LineCodePage", "", cfg->line_codepage,
 468          sizeof(cfg->line_codepage));
 469     gppi(sesskey, "ScrollBar", 1, &cfg->scrollbar);
 470     gppi(sesskey, "ScrollOnKey", 0, &cfg->scroll_on_key);
 471     gppi(sesskey, "ScrollOnDisp", 1, &cfg->scroll_on_disp);
 472     gppi(sesskey, "LockSize", 0, &cfg->locksize);
 473     gppi(sesskey, "BCE", 0, &cfg->bce);
 474     gppi(sesskey, "BlinkText", 0, &cfg->blinktext);
 475     gppi(sesskey, "X11Forward", 0, &cfg->x11_forward);
 476     gpps(sesskey, "X11Display", "localhost:0", cfg->x11_display,
 477          sizeof(cfg->x11_display));
 478
 479     gppi(sesskey, "LocalPortAcceptAll", 0, &cfg->lport_acceptall);
 480     {
 481         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
 482         gpps(sesskey, "PortForwardings", "", buf, sizeof(buf));
 483         p = buf;
 484         q = cfg->portfwd;
 485         while (*p) {
 486             while (*p && *p != ',') {
 487                 int c = *p++;
 488                 if (c == '=')
 489                     c = '\t';
 490                 if (c == '\\')
 491                     c = *p++;
 492                 *q++ = c;
 493             }
 494             if (*p == ',')
 495                 p++;
 496             *q++ = '\0';
 497         }
 498         *q = '\0';
 499     }
 500
 501     close_settings_r(sesskey);
 502 }
 503
 504 void do_defaults(char *session, Config * cfg)
 505 {
 506     if (session)
 507         load_settings(session, TRUE, cfg);
 508     else
 509         load_settings("Default Settings", FALSE, cfg);
 510 }
 511
 512 static int sessioncmp(const void *av, const void *bv)
 513 {
 514     const char *a = *(const char *const *) av;
 515     const char *b = *(const char *const *) bv;
 516
 517     /*
 518      * Alphabetical order, except that "Default Settings" is a
 519      * special case and comes first.
 520      */
 521     if (!strcmp(a, "Default Settings"))
 522         return -1;                     /* a comes first */
 523     if (!strcmp(b, "Default Settings"))
 524         return +1;                     /* b comes first */
 525     return strcmp(a, b);               /* otherwise, compare normally */
 526 }
 527
 528 void get_sesslist(int allocate)
 529 {
 530     static char otherbuf[2048];
 531     static char *buffer;
 532     int buflen, bufsize, i;
 533     char *p, *ret;
 534     void *handle;
 535
 536     if (allocate) {
 537
 538         if ((handle = enum_settings_start()) == NULL)
 539             return;
 540
 541         buflen = bufsize = 0;
 542         buffer = NULL;
 543         do {
 544             ret = enum_settings_next(handle, otherbuf, sizeof(otherbuf));
 545             if (ret) {
 546                 int len = strlen(otherbuf) + 1;
 547                 if (bufsize < buflen + len) {
 548                     bufsize = buflen + len + 2048;
 549                     buffer = srealloc(buffer, bufsize);
 550                 }
 551                 strcpy(buffer + buflen, otherbuf);
 552                 buflen += strlen(buffer + buflen) + 1;
 553             }
 554         } while (ret);
 555         enum_settings_finish(handle);
 556         buffer = srealloc(buffer, buflen + 1);
 557         buffer[buflen] = '\0';
 558
 559         /*
 560          * Now set up the list of sessions. Note that "Default
 561          * Settings" must always be claimed to exist, even if it
 562          * doesn't really.
 563          */
 564
 565         p = buffer;
 566         nsessions = 1;                 /* "Default Settings" counts as one */
 567         while (*p) {
 568             if (strcmp(p, "Default Settings"))
 569                 nsessions++;
 570             while (*p)
 571                 p++;
 572             p++;
 573         }
 574
 575         sessions = smalloc((nsessions + 1) * sizeof(char *));
 576         sessions[0] = "Default Settings";
 577         p = buffer;
 578         i = 1;
 579         while (*p) {
 580             if (strcmp(p, "Default Settings"))
 581                 sessions[i++] = p;
 582             while (*p)
 583                 p++;
 584             p++;
 585         }
 586
 587         qsort(sessions, i, sizeof(char *), sessioncmp);
 588     } else {
 589         sfree(buffer);
 590         sfree(sessions);
 591     }
 592 }