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 static const struct keyval ciphernames[] = {
  16     { "aes",        CIPHER_AES },
  17     { "blowfish",   CIPHER_BLOWFISH },
  18     { "3des",       CIPHER_3DES },
  19     { "WARN",       CIPHER_WARN },
  20     { "des",        CIPHER_DES }
  21 };
  22
  23 static void gpps(void *handle, const char *name, const char *def,
  24                  char *val, int len)
  25 {
  26     if (!read_setting_s(handle, name, val, len)) {
  27         char *pdef;
  28
  29         pdef = platform_default_s(name);
  30         if (pdef) {
  31             strncpy(val, pdef, len);
  32             sfree(pdef);
  33         } else {
  34             strncpy(val, def, len);
  35         }
  36
  37         val[len - 1] = '\0';
  38     }
  39 }
  40
  41 /*
  42  * gppfont and gppfile cannot have local defaults, since the very
  43  * format of a Filename or Font is platform-dependent. So the
  44  * platform-dependent functions MUST return some sort of value.
  45  */
  46 static void gppfont(void *handle, const char *name, FontSpec *result)
  47 {
  48     if (!read_setting_fontspec(handle, name, result))
  49         *result = platform_default_fontspec(name);
  50 }
  51 static void gppfile(void *handle, const char *name, Filename *result)
  52 {
  53     if (!read_setting_filename(handle, name, result))
  54         *result = platform_default_filename(name);
  55 }
  56
  57 static void gppi(void *handle, char *name, int def, int *i)
  58 {
  59     def = platform_default_i(name, def);
  60     *i = read_setting_i(handle, name, def);
  61 }
  62
  63 static int key2val(const struct keyval *mapping, int nmaps, char *key)
  64 {
  65     int i;
  66     for (i = 0; i < nmaps; i++)
  67         if (!strcmp(mapping[i].s, key)) return mapping[i].v;
  68     return -1;
  69 }
  70
  71 static const char *val2key(const struct keyval *mapping, int nmaps, int val)
  72 {
  73     int i;
  74     for (i = 0; i < nmaps; i++)
  75         if (mapping[i].v == val) return mapping[i].s;
  76     return NULL;
  77 }
  78
  79 /*
  80  * Helper function to parse a comma-separated list of strings into
  81  * a preference list array of values. Any missing values are added
  82  * to the end and duplicates are weeded.
  83  * XXX: assumes vals in 'mapping' are small +ve integers
  84  */
  85 static void gprefs(void *sesskey, char *name, char *def,
  86                    const struct keyval *mapping, int nvals,
  87                    int *array)
  88 {
  89     char commalist[80];
  90     int n;
  91     unsigned long seen = 0;            /* bitmap for weeding dups etc */
  92     gpps(sesskey, name, def, commalist, sizeof(commalist));
  93
  94     /* Grotty parsing of commalist. */
  95     n = 0;
  96     do {
  97         int v;
  98         char *key;
  99         key = strtok(n==0 ? commalist : NULL, ","); /* sorry */
 100         if (!key) break;
 101         if (((v = key2val(mapping, nvals, key)) != -1) &&
 102             !(seen & 1<<v)) {
 103             array[n] = v;
 104             n++;
 105             seen |= 1<<v;
 106         }
 107     } while (n < nvals);
 108     /* Add any missing values (backward compatibility ect). */
 109     {
 110         int i;
 111         for (i = 0; i < nvals; i++) {
 112             if (!(seen & 1<<mapping[i].v)) {
 113                 array[n] = mapping[i].v;
 114                 n++;
 115             }
 116         }
 117     }
 118 }
 119
 120 /*
 121  * Write out a preference list.
 122  */
 123 static void wprefs(void *sesskey, char *name,
 124                    const struct keyval *mapping, int nvals,
 125                    int *array)
 126 {
 127     char buf[80] = "";  /* XXX assumed big enough */
 128     int l = sizeof(buf)-1, i;
 129     buf[l] = '\0';
 130     for (i = 0; l > 0 && i < nvals; i++) {
 131         const char *s = val2key(mapping, nvals, array[i]);
 132         if (s) {
 133             int sl = strlen(s);
 134             if (i > 0) {
 135                 strncat(buf, ",", l);
 136                 l--;
 137             }
 138             strncat(buf, s, l);
 139             l -= sl;
 140         }
 141     }
 142     write_setting_s(sesskey, name, buf);
 143 }
 144
 145 char *save_settings(char *section, int do_host, Config * cfg)
 146 {
 147     void *sesskey;
 148     char *errmsg;
 149
 150     sesskey = open_settings_w(section, &errmsg);
 151     if (!sesskey)
 152         return errmsg;
 153     save_open_settings(sesskey, do_host, cfg);
 154     close_settings_w(sesskey);
 155     return NULL;
 156 }
 157
 158 void save_open_settings(void *sesskey, int do_host, Config *cfg)
 159 {
 160     int i;
 161     char *p;
 162
 163     write_setting_i(sesskey, "Present", 1);
 164     if (do_host) {
 165         write_setting_s(sesskey, "HostName", cfg->host);
 166     }
 167     write_setting_filename(sesskey, "LogFileName", cfg->logfilename);
 168     write_setting_i(sesskey, "LogType", cfg->logtype);
 169     write_setting_i(sesskey, "LogFileClash", cfg->logxfovr);
 170     write_setting_i(sesskey, "SSHLogOmitPasswords", cfg->logomitpass);
 171     write_setting_i(sesskey, "SSHLogOmitData", cfg->logomitdata);
 172     p = "raw";
 173     for (i = 0; backends[i].name != NULL; i++)
 174         if (backends[i].protocol == cfg->protocol) {
 175             p = backends[i].name;
 176             break;
 177         }
 178     write_setting_s(sesskey, "Protocol", p);
 179     write_setting_i(sesskey, "PortNumber", cfg->port);
 180     /* The CloseOnExit numbers are arranged in a different order from
 181      * the standard FORCE_ON / FORCE_OFF / AUTO. */
 182     write_setting_i(sesskey, "CloseOnExit", (cfg->close_on_exit+2)%3);
 183     write_setting_i(sesskey, "WarnOnClose", !!cfg->warn_on_close);
 184     write_setting_i(sesskey, "PingInterval", cfg->ping_interval / 60);  /* minutes */
 185     write_setting_i(sesskey, "PingIntervalSecs", cfg->ping_interval % 60);      /* seconds */
 186     write_setting_i(sesskey, "TCPNoDelay", cfg->tcp_nodelay);
 187     write_setting_i(sesskey, "TCPKeepalives", cfg->tcp_keepalives);
 188     write_setting_s(sesskey, "TerminalType", cfg->termtype);
 189     write_setting_s(sesskey, "TerminalSpeed", cfg->termspeed);
 190
 191     /* proxy settings */
 192     write_setting_s(sesskey, "ProxyExcludeList", cfg->proxy_exclude_list);
 193     write_setting_i(sesskey, "ProxyDNS", (cfg->proxy_dns+2)%3);
 194     write_setting_i(sesskey, "ProxyLocalhost", cfg->even_proxy_localhost);
 195     write_setting_i(sesskey, "ProxyMethod", cfg->proxy_type);
 196     write_setting_s(sesskey, "ProxyHost", cfg->proxy_host);
 197     write_setting_i(sesskey, "ProxyPort", cfg->proxy_port);
 198     write_setting_s(sesskey, "ProxyUsername", cfg->proxy_username);
 199     write_setting_s(sesskey, "ProxyPassword", cfg->proxy_password);
 200     write_setting_s(sesskey, "ProxyTelnetCommand", cfg->proxy_telnet_command);
 201
 202     {
 203         char buf[2 * sizeof(cfg->environmt)], *p, *q;
 204         p = buf;
 205         q = cfg->environmt;
 206         while (*q) {
 207             while (*q) {
 208                 int c = *q++;
 209                 if (c == '=' || c == ',' || c == '\\')
 210                     *p++ = '\\';
 211                 if (c == '\t')
 212                     c = '=';
 213                 *p++ = c;
 214             }
 215             *p++ = ',';
 216             q++;
 217         }
 218         *p = '\0';
 219         write_setting_s(sesskey, "Environment", buf);
 220     }
 221     write_setting_s(sesskey, "UserName", cfg->username);
 222     write_setting_s(sesskey, "LocalUserName", cfg->localusername);
 223     write_setting_i(sesskey, "NoPTY", cfg->nopty);
 224     write_setting_i(sesskey, "Compression", cfg->compression);
 225     write_setting_i(sesskey, "AgentFwd", cfg->agentfwd);
 226     write_setting_i(sesskey, "ChangeUsername", cfg->change_username);
 227     wprefs(sesskey, "Cipher", ciphernames, CIPHER_MAX,
 228            cfg->ssh_cipherlist);
 229     write_setting_i(sesskey, "AuthTIS", cfg->try_tis_auth);
 230     write_setting_i(sesskey, "AuthKI", cfg->try_ki_auth);
 231     write_setting_i(sesskey, "SshNoShell", cfg->ssh_no_shell);
 232     write_setting_i(sesskey, "SshProt", cfg->sshprot);
 233     write_setting_i(sesskey, "SSH2DES", cfg->ssh2_des_cbc);
 234     write_setting_filename(sesskey, "PublicKeyFile", cfg->keyfile);
 235     write_setting_s(sesskey, "RemoteCommand", cfg->remote_cmd);
 236     write_setting_i(sesskey, "RFCEnviron", cfg->rfc_environ);
 237     write_setting_i(sesskey, "PassiveTelnet", cfg->passive_telnet);
 238     write_setting_i(sesskey, "BackspaceIsDelete", cfg->bksp_is_delete);
 239     write_setting_i(sesskey, "RXVTHomeEnd", cfg->rxvt_homeend);
 240     write_setting_i(sesskey, "LinuxFunctionKeys", cfg->funky_type);
 241     write_setting_i(sesskey, "NoApplicationKeys", cfg->no_applic_k);
 242     write_setting_i(sesskey, "NoApplicationCursors", cfg->no_applic_c);
 243     write_setting_i(sesskey, "NoMouseReporting", cfg->no_mouse_rep);
 244     write_setting_i(sesskey, "NoRemoteResize", cfg->no_remote_resize);
 245     write_setting_i(sesskey, "NoAltScreen", cfg->no_alt_screen);
 246     write_setting_i(sesskey, "NoRemoteWinTitle", cfg->no_remote_wintitle);
 247     write_setting_i(sesskey, "NoRemoteQTitle", cfg->no_remote_qtitle);
 248     write_setting_i(sesskey, "NoDBackspace", cfg->no_dbackspace);
 249     write_setting_i(sesskey, "NoRemoteCharset", cfg->no_remote_charset);
 250     write_setting_i(sesskey, "ApplicationCursorKeys", cfg->app_cursor);
 251     write_setting_i(sesskey, "ApplicationKeypad", cfg->app_keypad);
 252     write_setting_i(sesskey, "NetHackKeypad", cfg->nethack_keypad);
 253     write_setting_i(sesskey, "AltF4", cfg->alt_f4);
 254     write_setting_i(sesskey, "AltSpace", cfg->alt_space);
 255     write_setting_i(sesskey, "AltOnly", cfg->alt_only);
 256     write_setting_i(sesskey, "ComposeKey", cfg->compose_key);
 257     write_setting_i(sesskey, "CtrlAltKeys", cfg->ctrlaltkeys);
 258     write_setting_i(sesskey, "TelnetKey", cfg->telnet_keyboard);
 259     write_setting_i(sesskey, "TelnetRet", cfg->telnet_newline);
 260     write_setting_i(sesskey, "LocalEcho", cfg->localecho);
 261     write_setting_i(sesskey, "LocalEdit", cfg->localedit);
 262     write_setting_s(sesskey, "Answerback", cfg->answerback);
 263     write_setting_i(sesskey, "AlwaysOnTop", cfg->alwaysontop);
 264     write_setting_i(sesskey, "FullScreenOnAltEnter", cfg->fullscreenonaltenter);
 265     write_setting_i(sesskey, "HideMousePtr", cfg->hide_mouseptr);
 266     write_setting_i(sesskey, "SunkenEdge", cfg->sunken_edge);
 267     write_setting_i(sesskey, "WindowBorder", cfg->window_border);
 268     write_setting_i(sesskey, "CurType", cfg->cursor_type);
 269     write_setting_i(sesskey, "BlinkCur", cfg->blink_cur);
 270     write_setting_i(sesskey, "Beep", cfg->beep);
 271     write_setting_i(sesskey, "BeepInd", cfg->beep_ind);
 272     write_setting_filename(sesskey, "BellWaveFile", cfg->bell_wavefile);
 273     write_setting_i(sesskey, "BellOverload", cfg->bellovl);
 274     write_setting_i(sesskey, "BellOverloadN", cfg->bellovl_n);
 275     write_setting_i(sesskey, "BellOverloadT", cfg->bellovl_t);
 276     write_setting_i(sesskey, "BellOverloadS", cfg->bellovl_s);
 277     write_setting_i(sesskey, "ScrollbackLines", cfg->savelines);
 278     write_setting_i(sesskey, "DECOriginMode", cfg->dec_om);
 279     write_setting_i(sesskey, "AutoWrapMode", cfg->wrap_mode);
 280     write_setting_i(sesskey, "LFImpliesCR", cfg->lfhascr);
 281     write_setting_i(sesskey, "WinNameAlways", cfg->win_name_always);
 282     write_setting_s(sesskey, "WinTitle", cfg->wintitle);
 283     write_setting_i(sesskey, "TermWidth", cfg->width);
 284     write_setting_i(sesskey, "TermHeight", cfg->height);
 285     write_setting_fontspec(sesskey, "Font", cfg->font);
 286     write_setting_i(sesskey, "FontVTMode", cfg->vtmode);
 287     write_setting_i(sesskey, "UseSystemColours", cfg->system_colour);
 288     write_setting_i(sesskey, "TryPalette", cfg->try_palette);
 289     write_setting_i(sesskey, "BoldAsColour", cfg->bold_colour);
 290     for (i = 0; i < 22; i++) {
 291         char buf[20], buf2[30];
 292         sprintf(buf, "Colour%d", i);
 293         sprintf(buf2, "%d,%d,%d", cfg->colours[i][0],
 294                 cfg->colours[i][1], cfg->colours[i][2]);
 295         write_setting_s(sesskey, buf, buf2);
 296     }
 297     write_setting_i(sesskey, "RawCNP", cfg->rawcnp);
 298     write_setting_i(sesskey, "PasteRTF", cfg->rtf_paste);
 299     write_setting_i(sesskey, "MouseIsXterm", cfg->mouse_is_xterm);
 300     write_setting_i(sesskey, "RectSelect", cfg->rect_select);
 301     write_setting_i(sesskey, "MouseOverride", cfg->mouse_override);
 302     for (i = 0; i < 256; i += 32) {
 303         char buf[20], buf2[256];
 304         int j;
 305         sprintf(buf, "Wordness%d", i);
 306         *buf2 = '\0';
 307         for (j = i; j < i + 32; j++) {
 308             sprintf(buf2 + strlen(buf2), "%s%d",
 309                     (*buf2 ? "," : ""), cfg->wordness[j]);
 310         }
 311         write_setting_s(sesskey, buf, buf2);
 312     }
 313     write_setting_s(sesskey, "LineCodePage", cfg->line_codepage);
 314     write_setting_i(sesskey, "UTF8Override", cfg->utf8_override);
 315     write_setting_s(sesskey, "Printer", cfg->printer);
 316     write_setting_i(sesskey, "CapsLockCyr", cfg->xlat_capslockcyr);
 317     write_setting_i(sesskey, "ScrollBar", cfg->scrollbar);
 318     write_setting_i(sesskey, "ScrollBarFullScreen", cfg->scrollbar_in_fullscreen);
 319     write_setting_i(sesskey, "ScrollOnKey", cfg->scroll_on_key);
 320     write_setting_i(sesskey, "ScrollOnDisp", cfg->scroll_on_disp);
 321     write_setting_i(sesskey, "EraseToScrollback", cfg->erase_to_scrollback);
 322     write_setting_i(sesskey, "LockSize", cfg->resize_action);
 323     write_setting_i(sesskey, "BCE", cfg->bce);
 324     write_setting_i(sesskey, "BlinkText", cfg->blinktext);
 325     write_setting_i(sesskey, "X11Forward", cfg->x11_forward);
 326     write_setting_s(sesskey, "X11Display", cfg->x11_display);
 327     write_setting_i(sesskey, "X11AuthType", cfg->x11_auth);
 328     write_setting_i(sesskey, "LocalPortAcceptAll", cfg->lport_acceptall);
 329     write_setting_i(sesskey, "RemotePortAcceptAll", cfg->rport_acceptall);
 330     {
 331         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
 332         p = buf;
 333         q = cfg->portfwd;
 334         while (*q) {
 335             while (*q) {
 336                 int c = *q++;
 337                 if (c == '=' || c == ',' || c == '\\')
 338                     *p++ = '\\';
 339                 if (c == '\t')
 340                     c = '=';
 341                 *p++ = c;
 342             }
 343             *p++ = ',';
 344             q++;
 345         }
 346         *p = '\0';
 347         write_setting_s(sesskey, "PortForwardings", buf);
 348     }
 349     write_setting_i(sesskey, "BugIgnore1", 2-cfg->sshbug_ignore1);
 350     write_setting_i(sesskey, "BugPlainPW1", 2-cfg->sshbug_plainpw1);
 351     write_setting_i(sesskey, "BugRSA1", 2-cfg->sshbug_rsa1);
 352     write_setting_i(sesskey, "BugHMAC2", 2-cfg->sshbug_hmac2);
 353     write_setting_i(sesskey, "BugDeriveKey2", 2-cfg->sshbug_derivekey2);
 354     write_setting_i(sesskey, "BugRSAPad2", 2-cfg->sshbug_rsapad2);
 355     write_setting_i(sesskey, "BugDHGEx2", 2-cfg->sshbug_dhgex2);
 356     write_setting_i(sesskey, "BugPKSessID2", 2-cfg->sshbug_pksessid2);
 357     write_setting_i(sesskey, "StampUtmp", cfg->stamp_utmp);
 358     write_setting_i(sesskey, "LoginShell", cfg->login_shell);
 359     write_setting_i(sesskey, "ScrollbarOnLeft", cfg->scrollbar_on_left);
 360     write_setting_fontspec(sesskey, "BoldFont", cfg->boldfont);
 361     write_setting_fontspec(sesskey, "WideFont", cfg->widefont);
 362     write_setting_fontspec(sesskey, "WideBoldFont", cfg->wideboldfont);
 363     write_setting_i(sesskey, "ShadowBold", cfg->shadowbold);
 364     write_setting_i(sesskey, "ShadowBoldOffset", cfg->shadowboldoffset);
 365 }
 366
 367 void load_settings(char *section, int do_host, Config * cfg)
 368 {
 369     void *sesskey;
 370
 371     sesskey = open_settings_r(section);
 372     load_open_settings(sesskey, do_host, cfg);
 373     close_settings_r(sesskey);
 374 }
 375
 376 void load_open_settings(void *sesskey, int do_host, Config *cfg)
 377 {
 378     int i;
 379     char prot[10];
 380
 381     cfg->ssh_subsys = 0;               /* FIXME: load this properly */
 382     cfg->remote_cmd_ptr = cfg->remote_cmd;
 383     cfg->remote_cmd_ptr2 = NULL;
 384
 385     if (do_host) {
 386         gpps(sesskey, "HostName", "", cfg->host, sizeof(cfg->host));
 387     } else {
 388         cfg->host[0] = '\0';           /* blank hostname */
 389     }
 390     gppfile(sesskey, "LogFileName", &cfg->logfilename);
 391     gppi(sesskey, "LogType", 0, &cfg->logtype);
 392     gppi(sesskey, "LogFileClash", LGXF_ASK, &cfg->logxfovr);
 393     gppi(sesskey, "SSHLogOmitPasswords", 1, &cfg->logomitpass);
 394     gppi(sesskey, "SSHLogOmitData", 0, &cfg->logomitdata);
 395
 396     gpps(sesskey, "Protocol", "default", prot, 10);
 397     cfg->protocol = default_protocol;
 398     cfg->port = default_port;
 399     for (i = 0; backends[i].name != NULL; i++)
 400         if (!strcmp(prot, backends[i].name)) {
 401             cfg->protocol = backends[i].protocol;
 402             gppi(sesskey, "PortNumber", default_port, &cfg->port);
 403             break;
 404         }
 405
 406     /* The CloseOnExit numbers are arranged in a different order from
 407      * the standard FORCE_ON / FORCE_OFF / AUTO. */
 408     gppi(sesskey, "CloseOnExit", 1, &i); cfg->close_on_exit = (i+1)%3;
 409     gppi(sesskey, "WarnOnClose", 1, &cfg->warn_on_close);
 410     {
 411         /* This is two values for backward compatibility with 0.50/0.51 */
 412         int pingmin, pingsec;
 413         gppi(sesskey, "PingInterval", 0, &pingmin);
 414         gppi(sesskey, "PingIntervalSecs", 0, &pingsec);
 415         cfg->ping_interval = pingmin * 60 + pingsec;
 416     }
 417     gppi(sesskey, "TCPNoDelay", 1, &cfg->tcp_nodelay);
 418     gppi(sesskey, "TCPKeepalives", 0, &cfg->tcp_keepalives);
 419     gpps(sesskey, "TerminalType", "xterm", cfg->termtype,
 420          sizeof(cfg->termtype));
 421     gpps(sesskey, "TerminalSpeed", "38400,38400", cfg->termspeed,
 422          sizeof(cfg->termspeed));
 423
 424     /* proxy settings */
 425     gpps(sesskey, "ProxyExcludeList", "", cfg->proxy_exclude_list,
 426          sizeof(cfg->proxy_exclude_list));
 427     gppi(sesskey, "ProxyDNS", 1, &i); cfg->proxy_dns = (i+1)%3;
 428     gppi(sesskey, "ProxyLocalhost", 0, &cfg->even_proxy_localhost);
 429     gppi(sesskey, "ProxyMethod", -1, &cfg->proxy_type);
 430     if (cfg->proxy_type == -1) {
 431         int i;
 432         gppi(sesskey, "ProxyType", 0, &i);
 433         if (i == 0)
 434             cfg->proxy_type = PROXY_NONE;
 435         else if (i == 1)
 436             cfg->proxy_type = PROXY_HTTP;
 437         else if (i == 3)
 438             cfg->proxy_type = PROXY_TELNET;
 439         else if (i == 4)
 440             cfg->proxy_type = PROXY_CMD;
 441         else {
 442             gppi(sesskey, "ProxySOCKSVersion", 5, &i);
 443             if (i == 5)
 444                 cfg->proxy_type = PROXY_SOCKS5;
 445             else
 446                 cfg->proxy_type = PROXY_SOCKS4;
 447         }
 448     }
 449     gpps(sesskey, "ProxyHost", "proxy", cfg->proxy_host,
 450          sizeof(cfg->proxy_host));
 451     gppi(sesskey, "ProxyPort", 80, &cfg->proxy_port);
 452     gpps(sesskey, "ProxyUsername", "", cfg->proxy_username,
 453          sizeof(cfg->proxy_username));
 454     gpps(sesskey, "ProxyPassword", "", cfg->proxy_password,
 455          sizeof(cfg->proxy_password));
 456     gpps(sesskey, "ProxyTelnetCommand", "connect %host %port\\n",
 457          cfg->proxy_telnet_command, sizeof(cfg->proxy_telnet_command));
 458
 459     {
 460         char buf[2 * sizeof(cfg->environmt)], *p, *q;
 461         gpps(sesskey, "Environment", "", buf, sizeof(buf));
 462         p = buf;
 463         q = cfg->environmt;
 464         while (*p) {
 465             while (*p && *p != ',') {
 466                 int c = *p++;
 467                 if (c == '=')
 468                     c = '\t';
 469                 if (c == '\\')
 470                     c = *p++;
 471                 *q++ = c;
 472             }
 473             if (*p == ',')
 474                 p++;
 475             *q++ = '\0';
 476         }
 477         *q = '\0';
 478     }
 479     gpps(sesskey, "UserName", "", cfg->username, sizeof(cfg->username));
 480     gpps(sesskey, "LocalUserName", "", cfg->localusername,
 481          sizeof(cfg->localusername));
 482     gppi(sesskey, "NoPTY", 0, &cfg->nopty);
 483     gppi(sesskey, "Compression", 0, &cfg->compression);
 484     gppi(sesskey, "AgentFwd", 0, &cfg->agentfwd);
 485     gppi(sesskey, "ChangeUsername", 0, &cfg->change_username);
 486     gprefs(sesskey, "Cipher", "\0",
 487            ciphernames, CIPHER_MAX, cfg->ssh_cipherlist);
 488     gppi(sesskey, "SshProt", 2, &cfg->sshprot);
 489     gppi(sesskey, "SSH2DES", 0, &cfg->ssh2_des_cbc);
 490     gppi(sesskey, "AuthTIS", 0, &cfg->try_tis_auth);
 491     gppi(sesskey, "AuthKI", 1, &cfg->try_ki_auth);
 492     gppi(sesskey, "SshNoShell", 0, &cfg->ssh_no_shell);
 493     gppfile(sesskey, "PublicKeyFile", &cfg->keyfile);
 494     gpps(sesskey, "RemoteCommand", "", cfg->remote_cmd,
 495          sizeof(cfg->remote_cmd));
 496     gppi(sesskey, "RFCEnviron", 0, &cfg->rfc_environ);
 497     gppi(sesskey, "PassiveTelnet", 0, &cfg->passive_telnet);
 498     gppi(sesskey, "BackspaceIsDelete", 1, &cfg->bksp_is_delete);
 499     gppi(sesskey, "RXVTHomeEnd", 0, &cfg->rxvt_homeend);
 500     gppi(sesskey, "LinuxFunctionKeys", 0, &cfg->funky_type);
 501     gppi(sesskey, "NoApplicationKeys", 0, &cfg->no_applic_k);
 502     gppi(sesskey, "NoApplicationCursors", 0, &cfg->no_applic_c);
 503     gppi(sesskey, "NoMouseReporting", 0, &cfg->no_mouse_rep);
 504     gppi(sesskey, "NoRemoteResize", 0, &cfg->no_remote_resize);
 505     gppi(sesskey, "NoAltScreen", 0, &cfg->no_alt_screen);
 506     gppi(sesskey, "NoRemoteWinTitle", 0, &cfg->no_remote_wintitle);
 507     gppi(sesskey, "NoRemoteQTitle", 1, &cfg->no_remote_qtitle);
 508     gppi(sesskey, "NoDBackspace", 0, &cfg->no_dbackspace);
 509     gppi(sesskey, "NoRemoteCharset", 0, &cfg->no_remote_charset);
 510     gppi(sesskey, "ApplicationCursorKeys", 0, &cfg->app_cursor);
 511     gppi(sesskey, "ApplicationKeypad", 0, &cfg->app_keypad);
 512     gppi(sesskey, "NetHackKeypad", 0, &cfg->nethack_keypad);
 513     gppi(sesskey, "AltF4", 1, &cfg->alt_f4);
 514     gppi(sesskey, "AltSpace", 0, &cfg->alt_space);
 515     gppi(sesskey, "AltOnly", 0, &cfg->alt_only);
 516     gppi(sesskey, "ComposeKey", 0, &cfg->compose_key);
 517     gppi(sesskey, "CtrlAltKeys", 1, &cfg->ctrlaltkeys);
 518     gppi(sesskey, "TelnetKey", 0, &cfg->telnet_keyboard);
 519     gppi(sesskey, "TelnetRet", 1, &cfg->telnet_newline);
 520     gppi(sesskey, "LocalEcho", AUTO, &cfg->localecho);
 521     gppi(sesskey, "LocalEdit", AUTO, &cfg->localedit);
 522     gpps(sesskey, "Answerback", "PuTTY", cfg->answerback,
 523          sizeof(cfg->answerback));
 524     gppi(sesskey, "AlwaysOnTop", 0, &cfg->alwaysontop);
 525     gppi(sesskey, "FullScreenOnAltEnter", 0, &cfg->fullscreenonaltenter);
 526     gppi(sesskey, "HideMousePtr", 0, &cfg->hide_mouseptr);
 527     gppi(sesskey, "SunkenEdge", 0, &cfg->sunken_edge);
 528     gppi(sesskey, "WindowBorder", 1, &cfg->window_border);
 529     gppi(sesskey, "CurType", 0, &cfg->cursor_type);
 530     gppi(sesskey, "BlinkCur", 0, &cfg->blink_cur);
 531     /* pedantic compiler tells me I can't use &cfg->beep as an int * :-) */
 532     gppi(sesskey, "Beep", 1, &cfg->beep);
 533     gppi(sesskey, "BeepInd", 0, &cfg->beep_ind);
 534     gppfile(sesskey, "BellWaveFile", &cfg->bell_wavefile);
 535     gppi(sesskey, "BellOverload", 1, &cfg->bellovl);
 536     gppi(sesskey, "BellOverloadN", 5, &cfg->bellovl_n);
 537     gppi(sesskey, "BellOverloadT", 2*TICKSPERSEC, &cfg->bellovl_t);
 538     gppi(sesskey, "BellOverloadS", 5*TICKSPERSEC, &cfg->bellovl_s);
 539     gppi(sesskey, "ScrollbackLines", 200, &cfg->savelines);
 540     gppi(sesskey, "DECOriginMode", 0, &cfg->dec_om);
 541     gppi(sesskey, "AutoWrapMode", 1, &cfg->wrap_mode);
 542     gppi(sesskey, "LFImpliesCR", 0, &cfg->lfhascr);
 543     gppi(sesskey, "WinNameAlways", 1, &cfg->win_name_always);
 544     gpps(sesskey, "WinTitle", "", cfg->wintitle, sizeof(cfg->wintitle));
 545     gppi(sesskey, "TermWidth", 80, &cfg->width);
 546     gppi(sesskey, "TermHeight", 24, &cfg->height);
 547     gppfont(sesskey, "Font", &cfg->font);
 548     gppi(sesskey, "FontVTMode", VT_UNICODE, (int *) &cfg->vtmode);
 549     gppi(sesskey, "UseSystemColours", 0, &cfg->system_colour);
 550     gppi(sesskey, "TryPalette", 0, &cfg->try_palette);
 551     gppi(sesskey, "BoldAsColour", 1, &cfg->bold_colour);
 552     for (i = 0; i < 22; i++) {
 553         static const char *const defaults[] = {
 554             "187,187,187", "255,255,255", "0,0,0", "85,85,85", "0,0,0",
 555             "0,255,0", "0,0,0", "85,85,85", "187,0,0", "255,85,85",
 556             "0,187,0", "85,255,85", "187,187,0", "255,255,85", "0,0,187",
 557             "85,85,255", "187,0,187", "255,85,255", "0,187,187",
 558             "85,255,255", "187,187,187", "255,255,255"
 559         };
 560         char buf[20], buf2[30];
 561         int c0, c1, c2;
 562         sprintf(buf, "Colour%d", i);
 563         gpps(sesskey, buf, defaults[i], buf2, sizeof(buf2));
 564         if (sscanf(buf2, "%d,%d,%d", &c0, &c1, &c2) == 3) {
 565             cfg->colours[i][0] = c0;
 566             cfg->colours[i][1] = c1;
 567             cfg->colours[i][2] = c2;
 568         }
 569     }
 570     gppi(sesskey, "RawCNP", 0, &cfg->rawcnp);
 571     gppi(sesskey, "PasteRTF", 0, &cfg->rtf_paste);
 572     gppi(sesskey, "MouseIsXterm", 0, &cfg->mouse_is_xterm);
 573     gppi(sesskey, "RectSelect", 0, &cfg->rect_select);
 574     gppi(sesskey, "MouseOverride", 1, &cfg->mouse_override);
 575     for (i = 0; i < 256; i += 32) {
 576         static const char *const defaults[] = {
 577             "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",
 578             "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",
 579             "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",
 580             "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",
 581             "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",
 582             "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",
 583             "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",
 584             "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"
 585         };
 586         char buf[20], buf2[256], *p;
 587         int j;
 588         sprintf(buf, "Wordness%d", i);
 589         gpps(sesskey, buf, defaults[i / 32], buf2, sizeof(buf2));
 590         p = buf2;
 591         for (j = i; j < i + 32; j++) {
 592             char *q = p;
 593             while (*p && *p != ',')
 594                 p++;
 595             if (*p == ',')
 596                 *p++ = '\0';
 597             cfg->wordness[j] = atoi(q);
 598         }
 599     }
 600     /*
 601      * The empty default for LineCodePage will be converted later
 602      * into a plausible default for the locale.
 603      */
 604     gpps(sesskey, "LineCodePage", "", cfg->line_codepage,
 605          sizeof(cfg->line_codepage));
 606     gppi(sesskey, "UTF8Override", 1, &cfg->utf8_override);
 607     gpps(sesskey, "Printer", "", cfg->printer, sizeof(cfg->printer));
 608     gppi (sesskey, "CapsLockCyr", 0, &cfg->xlat_capslockcyr);
 609     gppi(sesskey, "ScrollBar", 1, &cfg->scrollbar);
 610     gppi(sesskey, "ScrollBarFullScreen", 0, &cfg->scrollbar_in_fullscreen);
 611     gppi(sesskey, "ScrollOnKey", 0, &cfg->scroll_on_key);
 612     gppi(sesskey, "ScrollOnDisp", 1, &cfg->scroll_on_disp);
 613     gppi(sesskey, "EraseToScrollback", 1, &cfg->erase_to_scrollback);
 614     gppi(sesskey, "LockSize", 0, &cfg->resize_action);
 615     gppi(sesskey, "BCE", 1, &cfg->bce);
 616     gppi(sesskey, "BlinkText", 0, &cfg->blinktext);
 617     gppi(sesskey, "X11Forward", 0, &cfg->x11_forward);
 618     gpps(sesskey, "X11Display", "", cfg->x11_display,
 619          sizeof(cfg->x11_display));
 620     gppi(sesskey, "X11AuthType", X11_MIT, &cfg->x11_auth);
 621
 622     gppi(sesskey, "LocalPortAcceptAll", 0, &cfg->lport_acceptall);
 623     gppi(sesskey, "RemotePortAcceptAll", 0, &cfg->rport_acceptall);
 624     {
 625         char buf[2 * sizeof(cfg->portfwd)], *p, *q;
 626         gpps(sesskey, "PortForwardings", "", buf, sizeof(buf));
 627         p = buf;
 628         q = cfg->portfwd;
 629         while (*p) {
 630             while (*p && *p != ',') {
 631                 int c = *p++;
 632                 if (c == '=')
 633                     c = '\t';
 634                 if (c == '\\')
 635                     c = *p++;
 636                 *q++ = c;
 637             }
 638             if (*p == ',')
 639                 p++;
 640             *q++ = '\0';
 641         }
 642         *q = '\0';
 643     }
 644     gppi(sesskey, "BugIgnore1", 0, &i); cfg->sshbug_ignore1 = 2-i;
 645     gppi(sesskey, "BugPlainPW1", 0, &i); cfg->sshbug_plainpw1 = 2-i;
 646     gppi(sesskey, "BugRSA1", 0, &i); cfg->sshbug_rsa1 = 2-i;
 647     {
 648         int i;
 649         gppi(sesskey, "BugHMAC2", 0, &i); cfg->sshbug_hmac2 = 2-i;
 650         if (cfg->sshbug_hmac2 == AUTO) {
 651             gppi(sesskey, "BuggyMAC", 0, &i);
 652             if (i == 1)
 653                 cfg->sshbug_hmac2 = FORCE_ON;
 654         }
 655     }
 656     gppi(sesskey, "BugDeriveKey2", 0, &i); cfg->sshbug_derivekey2 = 2-i;
 657     gppi(sesskey, "BugRSAPad2", 0, &i); cfg->sshbug_rsapad2 = 2-i;
 658     gppi(sesskey, "BugDHGEx2", 0, &i); cfg->sshbug_dhgex2 = 2-i;
 659     gppi(sesskey, "BugPKSessID2", 0, &i); cfg->sshbug_pksessid2 = 2-i;
 660     gppi(sesskey, "StampUtmp", 1, &cfg->stamp_utmp);
 661     gppi(sesskey, "LoginShell", 1, &cfg->login_shell);
 662     gppi(sesskey, "ScrollbarOnLeft", 0, &cfg->scrollbar_on_left);
 663     gppi(sesskey, "ShadowBold", 0, &cfg->shadowbold);
 664     gppfont(sesskey, "BoldFont", &cfg->boldfont);
 665     gppfont(sesskey, "WideFont", &cfg->widefont);
 666     gppfont(sesskey, "WideBoldFont", &cfg->wideboldfont);
 667     gppi(sesskey, "ShadowBoldOffset", 1, &cfg->shadowboldoffset);
 668 }
 669
 670 void do_defaults(char *session, Config * cfg)
 671 {
 672     load_settings(session, (session != NULL && *session), cfg);
 673 }
 674
 675 static int sessioncmp(const void *av, const void *bv)
 676 {
 677     const char *a = *(const char *const *) av;
 678     const char *b = *(const char *const *) bv;
 679
 680     /*
 681      * Alphabetical order, except that "Default Settings" is a
 682      * special case and comes first.
 683      */
 684     if (!strcmp(a, "Default Settings"))
 685         return -1;                     /* a comes first */
 686     if (!strcmp(b, "Default Settings"))
 687         return +1;                     /* b comes first */
 688     /*
 689      * FIXME: perhaps we should ignore the first & in determining
 690      * sort order.
 691      */
 692     return strcmp(a, b);               /* otherwise, compare normally */
 693 }
 694
 695 void get_sesslist(struct sesslist *list, int allocate)
 696 {
 697     char otherbuf[2048];
 698     int buflen, bufsize, i;
 699     char *p, *ret;
 700     void *handle;
 701
 702     if (allocate) {
 703
 704         buflen = bufsize = 0;
 705         list->buffer = NULL;
 706         if ((handle = enum_settings_start()) != NULL) {
 707             do {
 708                 ret = enum_settings_next(handle, otherbuf, sizeof(otherbuf));
 709                 if (ret) {
 710                     int len = strlen(otherbuf) + 1;
 711                     if (bufsize < buflen + len) {
 712                         bufsize = buflen + len + 2048;
 713                         list->buffer = sresize(list->buffer, bufsize, char);
 714                     }
 715                     strcpy(list->buffer + buflen, otherbuf);
 716                     buflen += strlen(list->buffer + buflen) + 1;
 717                 }
 718             } while (ret);
 719             enum_settings_finish(handle);
 720         }
 721         list->buffer = sresize(list->buffer, buflen + 1, char);
 722         list->buffer[buflen] = '\0';
 723
 724         /*
 725          * Now set up the list of sessions. Note that "Default
 726          * Settings" must always be claimed to exist, even if it
 727          * doesn't really.
 728          */
 729
 730         p = list->buffer;
 731         list->nsessions = 1;           /* "Default Settings" counts as one */
 732         while (*p) {
 733             if (strcmp(p, "Default Settings"))
 734                 list->nsessions++;
 735             while (*p)
 736                 p++;
 737             p++;
 738         }
 739
 740         list->sessions = snewn(list->nsessions + 1, char *);
 741         list->sessions[0] = "Default Settings";
 742         p = list->buffer;
 743         i = 1;
 744         while (*p) {
 745             if (strcmp(p, "Default Settings"))
 746                 list->sessions[i++] = p;
 747             while (*p)
 748                 p++;
 749             p++;
 750         }
 751
 752         qsort(list->sessions, i, sizeof(char *), sessioncmp);
 753     } else {
 754         sfree(list->buffer);
 755         sfree(list->sessions);
 756     }
 757 }