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, "AuthTIS", cfg->try_tis_auth);
 240     write_setting_i(sesskey, "AuthKI", cfg->try_ki_auth);
 241     write_setting_i(sesskey, "SshNoShell", cfg->ssh_no_shell);
 242     write_setting_i(sesskey, "SshProt", cfg->sshprot);
 243     write_setting_i(sesskey, "SSH2DES", cfg->ssh2_des_cbc);
 244     write_setting_filename(sesskey, "PublicKeyFile", cfg->keyfile);
 245     write_setting_s(sesskey, "RemoteCommand", cfg->remote_cmd);
 246     write_setting_i(sesskey, "RFCEnviron", cfg->rfc_environ);
 247     write_setting_i(sesskey, "PassiveTelnet", cfg->passive_telnet);
 248     write_setting_i(sesskey, "BackspaceIsDelete", cfg->bksp_is_delete);
 249     write_setting_i(sesskey, "RXVTHomeEnd", cfg->rxvt_homeend);
 250     write_setting_i(sesskey, "LinuxFunctionKeys", cfg->funky_type);
 251     write_setting_i(sesskey, "NoApplicationKeys", cfg->no_applic_k);
 252     write_setting_i(sesskey, "NoApplicationCursors", cfg->no_applic_c);
 253     write_setting_i(sesskey, "NoMouseReporting", cfg->no_mouse_rep);
 254     write_setting_i(sesskey, "NoRemoteResize", cfg->no_remote_resize);
 255     write_setting_i(sesskey, "NoAltScreen", cfg->no_alt_screen);
 256     write_setting_i(sesskey, "NoRemoteWinTitle", cfg->no_remote_wintitle);
 257     write_setting_i(sesskey, "NoRemoteQTitle", cfg->no_remote_qtitle);
 258     write_setting_i(sesskey, "NoDBackspace", cfg->no_dbackspace);
 259     write_setting_i(sesskey, "NoRemoteCharset", cfg->no_remote_charset);
 260     write_setting_i(sesskey, "ApplicationCursorKeys", cfg->app_cursor);
 261     write_setting_i(sesskey, "ApplicationKeypad", cfg->app_keypad);
 262     write_setting_i(sesskey, "NetHackKeypad", cfg->nethack_keypad);
 263     write_setting_i(sesskey, "AltF4", cfg->alt_f4);
 264     write_setting_i(sesskey, "AltSpace", cfg->alt_space);
 265     write_setting_i(sesskey, "AltOnly", cfg->alt_only);
 266     write_setting_i(sesskey, "ComposeKey", cfg->compose_key);
 267     write_setting_i(sesskey, "CtrlAltKeys", cfg->ctrlaltkeys);
 268     write_setting_i(sesskey, "TelnetKey", cfg->telnet_keyboard);
 269     write_setting_i(sesskey, "TelnetRet", cfg->telnet_newline);
 270     write_setting_i(sesskey, "LocalEcho", cfg->localecho);
 271     write_setting_i(sesskey, "LocalEdit", cfg->localedit);
 272     write_setting_s(sesskey, "Answerback", cfg->answerback);
 273     write_setting_i(sesskey, "AlwaysOnTop", cfg->alwaysontop);
 274     write_setting_i(sesskey, "FullScreenOnAltEnter", cfg->fullscreenonaltenter);
 275     write_setting_i(sesskey, "HideMousePtr", cfg->hide_mouseptr);
 276     write_setting_i(sesskey, "SunkenEdge", cfg->sunken_edge);
 277     write_setting_i(sesskey, "WindowBorder", cfg->window_border);
 278     write_setting_i(sesskey, "CurType", cfg->cursor_type);
 279     write_setting_i(sesskey, "BlinkCur", cfg->blink_cur);
 280     write_setting_i(sesskey, "Beep", cfg->beep);
 281     write_setting_i(sesskey, "BeepInd", cfg->beep_ind);
 282     write_setting_filename(sesskey, "BellWaveFile", cfg->bell_wavefile);
 283     write_setting_i(sesskey, "BellOverload", cfg->bellovl);
 284     write_setting_i(sesskey, "BellOverloadN", cfg->bellovl_n);
 285     write_setting_i(sesskey, "BellOverloadT", cfg->bellovl_t);
 286     write_setting_i(sesskey, "BellOverloadS", cfg->bellovl_s);
 287     write_setting_i(sesskey, "ScrollbackLines", cfg->savelines);
 288     write_setting_i(sesskey, "DECOriginMode", cfg->dec_om);
 289     write_setting_i(sesskey, "AutoWrapMode", cfg->wrap_mode);
 290     write_setting_i(sesskey, "LFImpliesCR", cfg->lfhascr);
 291     write_setting_i(sesskey, "DisableArabicShaping", cfg->arabicshaping);
 292     write_setting_i(sesskey, "DisableBidi", cfg->bidi);
 293     write_setting_i(sesskey, "WinNameAlways", cfg->win_name_always);
 294     write_setting_s(sesskey, "WinTitle", cfg->wintitle);
 295     write_setting_i(sesskey, "TermWidth", cfg->width);
 296     write_setting_i(sesskey, "TermHeight", cfg->height);
 297     write_setting_fontspec(sesskey, "Font", cfg->font);
 298     write_setting_i(sesskey, "FontVTMode", cfg->vtmode);
 299     write_setting_i(sesskey, "UseSystemColours", cfg->system_colour);
 300     write_setting_i(sesskey, "TryPalette", cfg->try_palette);
 301     write_setting_i(sesskey, "ANSIColour", cfg->ansi_colour);
 302     write_setting_i(sesskey, "Xterm256Colour", cfg->xterm_256_colour);
 303     write_setting_i(sesskey, "BoldAsColour", cfg->bold_colour);
 304
 305     for (i = 0; i < 22; i++) {
 306         char buf[20], buf2[30];
 307         sprintf(buf, "Colour%d", i);
 308         sprintf(buf2, "%d,%d,%d", cfg->colours[i][0],
 309                 cfg->colours[i][1], cfg->colours[i][2]);
 310         write_setting_s(sesskey, buf, buf2);
 311     }
 312     write_setting_i(sesskey, "RawCNP", cfg->rawcnp);
 313     write_setting_i(sesskey, "PasteRTF", cfg->rtf_paste);
 314     write_setting_i(sesskey, "MouseIsXterm", cfg->mouse_is_xterm);
 315     write_setting_i(sesskey, "RectSelect", cfg->rect_select);
 316     write_setting_i(sesskey, "MouseOverride", cfg->mouse_override);
 317     for (i = 0; i < 256; i += 32) {
 318         char buf[20], buf2[256];
 319         int j;
 320         sprintf(buf, "Wordness%d", i);
 321         *buf2 = '\0';
 322         for (j = i; j < i + 32; j++) {
 323             sprintf(buf2 + strlen(buf2), "%s%d",
 324                     (*buf2 ? "," : ""), cfg->wordness[j]);
 325         }
 326         write_setting_s(sesskey, buf, buf2);
 327     }
 328     write_setting_s(sesskey, "LineCodePage", cfg->line_codepage);
 329     write_setting_i(sesskey, "UTF8Override", cfg->utf8_override);
 330     write_setting_s(sesskey, "Printer", cfg->printer);
 331     write_setting_i(sesskey, "CapsLockCyr", cfg->xlat_capslockcyr);
 332     write_setting_i(sesskey, "ScrollBar", cfg->scrollbar);
 333     write_setting_i(sesskey, "ScrollBarFullScreen", cfg->scrollbar_in_fullscreen);
 334     write_setting_i(sesskey, "ScrollOnKey", cfg->scroll_on_key);
 335     write_setting_i(sesskey, "ScrollOnDisp", cfg->scroll_on_disp);
 336     write_setting_i(sesskey, "EraseToScrollback", cfg->erase_to_scrollback);
 337     write_setting_i(sesskey, "LockSize", cfg->resize_action);
 338     write_setting_i(sesskey, "BCE", cfg->bce);
 339     write_setting_i(sesskey, "BlinkText", cfg->blinktext);
 340     write_setting_i(sesskey, "X11Forward", cfg->x11_forward);
 341     write_setting_s(sesskey, "X11Display", cfg->x11_display);
 342     write_setting_i(sesskey, "X11AuthType", cfg->x11_auth);
 343     write_setting_i(sesskey, "LocalPortAcceptAll", cfg->lport_acceptall);
 344     write_setting_i(sesskey, "RemotePortAcceptAll", cfg->rport_acceptall);
 345     {
 346         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
 347         p = buf;
 348         q = cfg->portfwd;
 349         while (*q) {
 350             while (*q) {
 351                 int c = *q++;
 352                 if (c == '=' || c == ',' || c == '\\')
 353                     *p++ = '\\';
 354                 if (c == '\t')
 355                     c = '=';
 356                 *p++ = c;
 357             }
 358             *p++ = ',';
 359             q++;
 360         }
 361         *p = '\0';
 362         write_setting_s(sesskey, "PortForwardings", buf);
 363     }
 364     write_setting_i(sesskey, "BugIgnore1", 2-cfg->sshbug_ignore1);
 365     write_setting_i(sesskey, "BugPlainPW1", 2-cfg->sshbug_plainpw1);
 366     write_setting_i(sesskey, "BugRSA1", 2-cfg->sshbug_rsa1);
 367     write_setting_i(sesskey, "BugHMAC2", 2-cfg->sshbug_hmac2);
 368     write_setting_i(sesskey, "BugDeriveKey2", 2-cfg->sshbug_derivekey2);
 369     write_setting_i(sesskey, "BugRSAPad2", 2-cfg->sshbug_rsapad2);
 370     write_setting_i(sesskey, "BugPKSessID2", 2-cfg->sshbug_pksessid2);
 371     write_setting_i(sesskey, "StampUtmp", cfg->stamp_utmp);
 372     write_setting_i(sesskey, "LoginShell", cfg->login_shell);
 373     write_setting_i(sesskey, "ScrollbarOnLeft", cfg->scrollbar_on_left);
 374     write_setting_fontspec(sesskey, "BoldFont", cfg->boldfont);
 375     write_setting_fontspec(sesskey, "WideFont", cfg->widefont);
 376     write_setting_fontspec(sesskey, "WideBoldFont", cfg->wideboldfont);
 377     write_setting_i(sesskey, "ShadowBold", cfg->shadowbold);
 378     write_setting_i(sesskey, "ShadowBoldOffset", cfg->shadowboldoffset);
 379 }
 380
 381 void load_settings(char *section, int do_host, Config * cfg)
 382 {
 383     void *sesskey;
 384
 385     sesskey = open_settings_r(section);
 386     load_open_settings(sesskey, do_host, cfg);
 387     close_settings_r(sesskey);
 388 }
 389
 390 void load_open_settings(void *sesskey, int do_host, Config *cfg)
 391 {
 392     int i;
 393     char prot[10];
 394
 395     cfg->ssh_subsys = 0;               /* FIXME: load this properly */
 396     cfg->remote_cmd_ptr = cfg->remote_cmd;
 397     cfg->remote_cmd_ptr2 = NULL;
 398
 399     if (do_host) {
 400         gpps(sesskey, "HostName", "", cfg->host, sizeof(cfg->host));
 401     } else {
 402         cfg->host[0] = '\0';           /* blank hostname */
 403     }
 404     gppfile(sesskey, "LogFileName", &cfg->logfilename);
 405     gppi(sesskey, "LogType", 0, &cfg->logtype);
 406     gppi(sesskey, "LogFileClash", LGXF_ASK, &cfg->logxfovr);
 407     gppi(sesskey, "LogFlush", 1, &cfg->logflush);
 408     gppi(sesskey, "SSHLogOmitPasswords", 1, &cfg->logomitpass);
 409     gppi(sesskey, "SSHLogOmitData", 0, &cfg->logomitdata);
 410
 411     gpps(sesskey, "Protocol", "default", prot, 10);
 412     cfg->protocol = default_protocol;
 413     cfg->port = default_port;
 414     for (i = 0; backends[i].name != NULL; i++)
 415         if (!strcmp(prot, backends[i].name)) {
 416             cfg->protocol = backends[i].protocol;
 417             gppi(sesskey, "PortNumber", default_port, &cfg->port);
 418             break;
 419         }
 420
 421     /* The CloseOnExit numbers are arranged in a different order from
 422      * the standard FORCE_ON / FORCE_OFF / AUTO. */
 423     gppi(sesskey, "CloseOnExit", 1, &i); cfg->close_on_exit = (i+1)%3;
 424     gppi(sesskey, "WarnOnClose", 1, &cfg->warn_on_close);
 425     {
 426         /* This is two values for backward compatibility with 0.50/0.51 */
 427         int pingmin, pingsec;
 428         gppi(sesskey, "PingInterval", 0, &pingmin);
 429         gppi(sesskey, "PingIntervalSecs", 0, &pingsec);
 430         cfg->ping_interval = pingmin * 60 + pingsec;
 431     }
 432     gppi(sesskey, "TCPNoDelay", 1, &cfg->tcp_nodelay);
 433     gppi(sesskey, "TCPKeepalives", 0, &cfg->tcp_keepalives);
 434     gpps(sesskey, "TerminalType", "xterm", cfg->termtype,
 435          sizeof(cfg->termtype));
 436     gpps(sesskey, "TerminalSpeed", "38400,38400", cfg->termspeed,
 437          sizeof(cfg->termspeed));
 438
 439     /* proxy settings */
 440     gpps(sesskey, "ProxyExcludeList", "", cfg->proxy_exclude_list,
 441          sizeof(cfg->proxy_exclude_list));
 442     gppi(sesskey, "ProxyDNS", 1, &i); cfg->proxy_dns = (i+1)%3;
 443     gppi(sesskey, "ProxyLocalhost", 0, &cfg->even_proxy_localhost);
 444     gppi(sesskey, "ProxyMethod", -1, &cfg->proxy_type);
 445     if (cfg->proxy_type == -1) {
 446         int i;
 447         gppi(sesskey, "ProxyType", 0, &i);
 448         if (i == 0)
 449             cfg->proxy_type = PROXY_NONE;
 450         else if (i == 1)
 451             cfg->proxy_type = PROXY_HTTP;
 452         else if (i == 3)
 453             cfg->proxy_type = PROXY_TELNET;
 454         else if (i == 4)
 455             cfg->proxy_type = PROXY_CMD;
 456         else {
 457             gppi(sesskey, "ProxySOCKSVersion", 5, &i);
 458             if (i == 5)
 459                 cfg->proxy_type = PROXY_SOCKS5;
 460             else
 461                 cfg->proxy_type = PROXY_SOCKS4;
 462         }
 463     }
 464     gpps(sesskey, "ProxyHost", "proxy", cfg->proxy_host,
 465          sizeof(cfg->proxy_host));
 466     gppi(sesskey, "ProxyPort", 80, &cfg->proxy_port);
 467     gpps(sesskey, "ProxyUsername", "", cfg->proxy_username,
 468          sizeof(cfg->proxy_username));
 469     gpps(sesskey, "ProxyPassword", "", cfg->proxy_password,
 470          sizeof(cfg->proxy_password));
 471     gpps(sesskey, "ProxyTelnetCommand", "connect %host %port\\n",
 472          cfg->proxy_telnet_command, sizeof(cfg->proxy_telnet_command));
 473
 474     {
 475         char buf[2 * sizeof(cfg->environmt)], *p, *q;
 476         gpps(sesskey, "Environment", "", buf, sizeof(buf));
 477         p = buf;
 478         q = cfg->environmt;
 479         while (*p) {
 480             while (*p && *p != ',') {
 481                 int c = *p++;
 482                 if (c == '=')
 483                     c = '\t';
 484                 if (c == '\\')
 485                     c = *p++;
 486                 *q++ = c;
 487             }
 488             if (*p == ',')
 489                 p++;
 490             *q++ = '\0';
 491         }
 492         *q = '\0';
 493     }
 494     gpps(sesskey, "UserName", "", cfg->username, sizeof(cfg->username));
 495     gpps(sesskey, "LocalUserName", "", cfg->localusername,
 496          sizeof(cfg->localusername));
 497     gppi(sesskey, "NoPTY", 0, &cfg->nopty);
 498     gppi(sesskey, "Compression", 0, &cfg->compression);
 499     gppi(sesskey, "AgentFwd", 0, &cfg->agentfwd);
 500     gppi(sesskey, "ChangeUsername", 0, &cfg->change_username);
 501     gprefs(sesskey, "Cipher", "\0",
 502            ciphernames, CIPHER_MAX, cfg->ssh_cipherlist);
 503     {
 504         /* Backward-compatibility: we used to have an option to
 505          * disable gex under the "bugs" panel after one report of
 506          * a server which offered it then choked, but we never got
 507          * a server version string or any other reports. */
 508         char *default_kexes;
 509         gppi(sesskey, "BugDHGEx2", 0, &i); i = 2-i;
 510         if (i == FORCE_ON)
 511             default_kexes = "dh-group14-sha1,dh-group1-sha1,WARN,dh-gex-sha1";
 512         else
 513             default_kexes = "dh-gex-sha1,dh-group14-sha1,dh-group1-sha1,WARN";
 514         gprefs(sesskey, "KEX", default_kexes,
 515                kexnames, KEX_MAX, cfg->ssh_kexlist);
 516     }
 517     gppi(sesskey, "SshProt", 2, &cfg->sshprot);
 518     gppi(sesskey, "SSH2DES", 0, &cfg->ssh2_des_cbc);
 519     gppi(sesskey, "AuthTIS", 0, &cfg->try_tis_auth);
 520     gppi(sesskey, "AuthKI", 1, &cfg->try_ki_auth);
 521     gppi(sesskey, "SshNoShell", 0, &cfg->ssh_no_shell);
 522     gppfile(sesskey, "PublicKeyFile", &cfg->keyfile);
 523     gpps(sesskey, "RemoteCommand", "", cfg->remote_cmd,
 524          sizeof(cfg->remote_cmd));
 525     gppi(sesskey, "RFCEnviron", 0, &cfg->rfc_environ);
 526     gppi(sesskey, "PassiveTelnet", 0, &cfg->passive_telnet);
 527     gppi(sesskey, "BackspaceIsDelete", 1, &cfg->bksp_is_delete);
 528     gppi(sesskey, "RXVTHomeEnd", 0, &cfg->rxvt_homeend);
 529     gppi(sesskey, "LinuxFunctionKeys", 0, &cfg->funky_type);
 530     gppi(sesskey, "NoApplicationKeys", 0, &cfg->no_applic_k);
 531     gppi(sesskey, "NoApplicationCursors", 0, &cfg->no_applic_c);
 532     gppi(sesskey, "NoMouseReporting", 0, &cfg->no_mouse_rep);
 533     gppi(sesskey, "NoRemoteResize", 0, &cfg->no_remote_resize);
 534     gppi(sesskey, "NoAltScreen", 0, &cfg->no_alt_screen);
 535     gppi(sesskey, "NoRemoteWinTitle", 0, &cfg->no_remote_wintitle);
 536     gppi(sesskey, "NoRemoteQTitle", 1, &cfg->no_remote_qtitle);
 537     gppi(sesskey, "NoDBackspace", 0, &cfg->no_dbackspace);
 538     gppi(sesskey, "NoRemoteCharset", 0, &cfg->no_remote_charset);
 539     gppi(sesskey, "ApplicationCursorKeys", 0, &cfg->app_cursor);
 540     gppi(sesskey, "ApplicationKeypad", 0, &cfg->app_keypad);
 541     gppi(sesskey, "NetHackKeypad", 0, &cfg->nethack_keypad);
 542     gppi(sesskey, "AltF4", 1, &cfg->alt_f4);
 543     gppi(sesskey, "AltSpace", 0, &cfg->alt_space);
 544     gppi(sesskey, "AltOnly", 0, &cfg->alt_only);
 545     gppi(sesskey, "ComposeKey", 0, &cfg->compose_key);
 546     gppi(sesskey, "CtrlAltKeys", 1, &cfg->ctrlaltkeys);
 547     gppi(sesskey, "TelnetKey", 0, &cfg->telnet_keyboard);
 548     gppi(sesskey, "TelnetRet", 1, &cfg->telnet_newline);
 549     gppi(sesskey, "LocalEcho", AUTO, &cfg->localecho);
 550     gppi(sesskey, "LocalEdit", AUTO, &cfg->localedit);
 551     gpps(sesskey, "Answerback", "PuTTY", cfg->answerback,
 552          sizeof(cfg->answerback));
 553     gppi(sesskey, "AlwaysOnTop", 0, &cfg->alwaysontop);
 554     gppi(sesskey, "FullScreenOnAltEnter", 0, &cfg->fullscreenonaltenter);
 555     gppi(sesskey, "HideMousePtr", 0, &cfg->hide_mouseptr);
 556     gppi(sesskey, "SunkenEdge", 0, &cfg->sunken_edge);
 557     gppi(sesskey, "WindowBorder", 1, &cfg->window_border);
 558     gppi(sesskey, "CurType", 0, &cfg->cursor_type);
 559     gppi(sesskey, "BlinkCur", 0, &cfg->blink_cur);
 560     /* pedantic compiler tells me I can't use &cfg->beep as an int * :-) */
 561     gppi(sesskey, "Beep", 1, &cfg->beep);
 562     gppi(sesskey, "BeepInd", 0, &cfg->beep_ind);
 563     gppfile(sesskey, "BellWaveFile", &cfg->bell_wavefile);
 564     gppi(sesskey, "BellOverload", 1, &cfg->bellovl);
 565     gppi(sesskey, "BellOverloadN", 5, &cfg->bellovl_n);
 566     gppi(sesskey, "BellOverloadT", 2*TICKSPERSEC, &cfg->bellovl_t);
 567     gppi(sesskey, "BellOverloadS", 5*TICKSPERSEC, &cfg->bellovl_s);
 568     gppi(sesskey, "ScrollbackLines", 200, &cfg->savelines);
 569     gppi(sesskey, "DECOriginMode", 0, &cfg->dec_om);
 570     gppi(sesskey, "AutoWrapMode", 1, &cfg->wrap_mode);
 571     gppi(sesskey, "LFImpliesCR", 0, &cfg->lfhascr);
 572     gppi(sesskey, "DisableArabicShaping", 0, &cfg->arabicshaping);
 573     gppi(sesskey, "DisableBidi", 0, &cfg->bidi);
 574     gppi(sesskey, "WinNameAlways", 1, &cfg->win_name_always);
 575     gpps(sesskey, "WinTitle", "", cfg->wintitle, sizeof(cfg->wintitle));
 576     gppi(sesskey, "TermWidth", 80, &cfg->width);
 577     gppi(sesskey, "TermHeight", 24, &cfg->height);
 578     gppfont(sesskey, "Font", &cfg->font);
 579     gppi(sesskey, "FontVTMode", VT_UNICODE, (int *) &cfg->vtmode);
 580     gppi(sesskey, "UseSystemColours", 0, &cfg->system_colour);
 581     gppi(sesskey, "TryPalette", 0, &cfg->try_palette);
 582     gppi(sesskey, "ANSIColour", 1, &cfg->ansi_colour);
 583     gppi(sesskey, "Xterm256Colour", 1, &cfg->xterm_256_colour);
 584     gppi(sesskey, "BoldAsColour", 1, &cfg->bold_colour);
 585
 586     for (i = 0; i < 22; i++) {
 587         static const char *const defaults[] = {
 588             "187,187,187", "255,255,255", "0,0,0", "85,85,85", "0,0,0",
 589             "0,255,0", "0,0,0", "85,85,85", "187,0,0", "255,85,85",
 590             "0,187,0", "85,255,85", "187,187,0", "255,255,85", "0,0,187",
 591             "85,85,255", "187,0,187", "255,85,255", "0,187,187",
 592             "85,255,255", "187,187,187", "255,255,255"
 593         };
 594         char buf[20], buf2[30];
 595         int c0, c1, c2;
 596         sprintf(buf, "Colour%d", i);
 597         gpps(sesskey, buf, defaults[i], buf2, sizeof(buf2));
 598         if (sscanf(buf2, "%d,%d,%d", &c0, &c1, &c2) == 3) {
 599             cfg->colours[i][0] = c0;
 600             cfg->colours[i][1] = c1;
 601             cfg->colours[i][2] = c2;
 602         }
 603     }
 604     gppi(sesskey, "RawCNP", 0, &cfg->rawcnp);
 605     gppi(sesskey, "PasteRTF", 0, &cfg->rtf_paste);
 606     gppi(sesskey, "MouseIsXterm", 0, &cfg->mouse_is_xterm);
 607     gppi(sesskey, "RectSelect", 0, &cfg->rect_select);
 608     gppi(sesskey, "MouseOverride", 1, &cfg->mouse_override);
 609     for (i = 0; i < 256; i += 32) {
 610         static const char *const defaults[] = {
 611             "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",
 612             "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",
 613             "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",
 614             "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",
 615             "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",
 616             "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",
 617             "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",
 618             "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"
 619         };
 620         char buf[20], buf2[256], *p;
 621         int j;
 622         sprintf(buf, "Wordness%d", i);
 623         gpps(sesskey, buf, defaults[i / 32], buf2, sizeof(buf2));
 624         p = buf2;
 625         for (j = i; j < i + 32; j++) {
 626             char *q = p;
 627             while (*p && *p != ',')
 628                 p++;
 629             if (*p == ',')
 630                 *p++ = '\0';
 631             cfg->wordness[j] = atoi(q);
 632         }
 633     }
 634     /*
 635      * The empty default for LineCodePage will be converted later
 636      * into a plausible default for the locale.
 637      */
 638     gpps(sesskey, "LineCodePage", "", cfg->line_codepage,
 639          sizeof(cfg->line_codepage));
 640     gppi(sesskey, "UTF8Override", 1, &cfg->utf8_override);
 641     gpps(sesskey, "Printer", "", cfg->printer, sizeof(cfg->printer));
 642     gppi (sesskey, "CapsLockCyr", 0, &cfg->xlat_capslockcyr);
 643     gppi(sesskey, "ScrollBar", 1, &cfg->scrollbar);
 644     gppi(sesskey, "ScrollBarFullScreen", 0, &cfg->scrollbar_in_fullscreen);
 645     gppi(sesskey, "ScrollOnKey", 0, &cfg->scroll_on_key);
 646     gppi(sesskey, "ScrollOnDisp", 1, &cfg->scroll_on_disp);
 647     gppi(sesskey, "EraseToScrollback", 1, &cfg->erase_to_scrollback);
 648     gppi(sesskey, "LockSize", 0, &cfg->resize_action);
 649     gppi(sesskey, "BCE", 1, &cfg->bce);
 650     gppi(sesskey, "BlinkText", 0, &cfg->blinktext);
 651     gppi(sesskey, "X11Forward", 0, &cfg->x11_forward);
 652     gpps(sesskey, "X11Display", "", cfg->x11_display,
 653          sizeof(cfg->x11_display));
 654     gppi(sesskey, "X11AuthType", X11_MIT, &cfg->x11_auth);
 655
 656     gppi(sesskey, "LocalPortAcceptAll", 0, &cfg->lport_acceptall);
 657     gppi(sesskey, "RemotePortAcceptAll", 0, &cfg->rport_acceptall);
 658     {
 659         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
 660         gpps(sesskey, "PortForwardings", "", buf, sizeof(buf));
 661         p = buf;
 662         q = cfg->portfwd;
 663         while (*p) {
 664             while (*p && *p != ',') {
 665                 int c = *p++;
 666                 if (c == '=')
 667                     c = '\t';
 668                 if (c == '\\')
 669                     c = *p++;
 670                 *q++ = c;
 671             }
 672             if (*p == ',')
 673                 p++;
 674             *q++ = '\0';
 675         }
 676         *q = '\0';
 677     }
 678     gppi(sesskey, "BugIgnore1", 0, &i); cfg->sshbug_ignore1 = 2-i;
 679     gppi(sesskey, "BugPlainPW1", 0, &i); cfg->sshbug_plainpw1 = 2-i;
 680     gppi(sesskey, "BugRSA1", 0, &i); cfg->sshbug_rsa1 = 2-i;
 681     {
 682         int i;
 683         gppi(sesskey, "BugHMAC2", 0, &i); cfg->sshbug_hmac2 = 2-i;
 684         if (cfg->sshbug_hmac2 == AUTO) {
 685             gppi(sesskey, "BuggyMAC", 0, &i);
 686             if (i == 1)
 687                 cfg->sshbug_hmac2 = FORCE_ON;
 688         }
 689     }
 690     gppi(sesskey, "BugDeriveKey2", 0, &i); cfg->sshbug_derivekey2 = 2-i;
 691     gppi(sesskey, "BugRSAPad2", 0, &i); cfg->sshbug_rsapad2 = 2-i;
 692     gppi(sesskey, "BugPKSessID2", 0, &i); cfg->sshbug_pksessid2 = 2-i;
 693     gppi(sesskey, "StampUtmp", 1, &cfg->stamp_utmp);
 694     gppi(sesskey, "LoginShell", 1, &cfg->login_shell);
 695     gppi(sesskey, "ScrollbarOnLeft", 0, &cfg->scrollbar_on_left);
 696     gppi(sesskey, "ShadowBold", 0, &cfg->shadowbold);
 697     gppfont(sesskey, "BoldFont", &cfg->boldfont);
 698     gppfont(sesskey, "WideFont", &cfg->widefont);
 699     gppfont(sesskey, "WideBoldFont", &cfg->wideboldfont);
 700     gppi(sesskey, "ShadowBoldOffset", 1, &cfg->shadowboldoffset);
 701 }
 702
 703 void do_defaults(char *session, Config * cfg)
 704 {
 705     load_settings(session, (session != NULL && *session), cfg);
 706 }
 707
 708 static int sessioncmp(const void *av, const void *bv)
 709 {
 710     const char *a = *(const char *const *) av;
 711     const char *b = *(const char *const *) bv;
 712
 713     /*
 714      * Alphabetical order, except that "Default Settings" is a
 715      * special case and comes first.
 716      */
 717     if (!strcmp(a, "Default Settings"))
 718         return -1;                     /* a comes first */
 719     if (!strcmp(b, "Default Settings"))
 720         return +1;                     /* b comes first */
 721     /*
 722      * FIXME: perhaps we should ignore the first & in determining
 723      * sort order.
 724      */
 725     return strcmp(a, b);               /* otherwise, compare normally */
 726 }
 727
 728 void get_sesslist(struct sesslist *list, int allocate)
 729 {
 730     char otherbuf[2048];
 731     int buflen, bufsize, i;
 732     char *p, *ret;
 733     void *handle;
 734
 735     if (allocate) {
 736
 737         buflen = bufsize = 0;
 738         list->buffer = NULL;
 739         if ((handle = enum_settings_start()) != NULL) {
 740             do {
 741                 ret = enum_settings_next(handle, otherbuf, sizeof(otherbuf));
 742                 if (ret) {
 743                     int len = strlen(otherbuf) + 1;
 744                     if (bufsize < buflen + len) {
 745                         bufsize = buflen + len + 2048;
 746                         list->buffer = sresize(list->buffer, bufsize, char);
 747                     }
 748                     strcpy(list->buffer + buflen, otherbuf);
 749                     buflen += strlen(list->buffer + buflen) + 1;
 750                 }
 751             } while (ret);
 752             enum_settings_finish(handle);
 753         }
 754         list->buffer = sresize(list->buffer, buflen + 1, char);
 755         list->buffer[buflen] = '\0';
 756
 757         /*
 758          * Now set up the list of sessions. Note that "Default
 759          * Settings" must always be claimed to exist, even if it
 760          * doesn't really.
 761          */
 762
 763         p = list->buffer;
 764         list->nsessions = 1;           /* "Default Settings" counts as one */
 765         while (*p) {
 766             if (strcmp(p, "Default Settings"))
 767                 list->nsessions++;
 768             while (*p)
 769                 p++;
 770             p++;
 771         }
 772
 773         list->sessions = snewn(list->nsessions + 1, char *);
 774         list->sessions[0] = "Default Settings";
 775         p = list->buffer;
 776         i = 1;
 777         while (*p) {
 778             if (strcmp(p, "Default Settings"))
 779                 list->sessions[i++] = p;
 780             while (*p)
 781                 p++;
 782             p++;
 783         }
 784
 785         qsort(list->sessions, i, sizeof(char *), sessioncmp);
 786     } else {
 787         sfree(list->buffer);
 788         sfree(list->sessions);
 789     }
 790 }