settings.c

   1 /*
   2  * settings.c: read and write saved sessions. (platform-independent)
   3  */
   4
   5 #include <assert.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 /* The cipher order given here is the default order. */
  17 static const struct keyval ciphernames[] = {
  18     { "aes",        CIPHER_AES },
  19     { "blowfish",   CIPHER_BLOWFISH },
  20     { "3des",       CIPHER_3DES },
  21     { "WARN",       CIPHER_WARN },
  22     { "arcfour",    CIPHER_ARCFOUR },
  23     { "des",        CIPHER_DES }
  24 };
  25
  26 static const struct keyval kexnames[] = {
  27     { "dh-gex-sha1",        KEX_DHGEX },
  28     { "dh-group14-sha1",    KEX_DHGROUP14 },
  29     { "dh-group1-sha1",     KEX_DHGROUP1 },
  30     { "rsa",                KEX_RSA },
  31     { "WARN",               KEX_WARN }
  32 };
  33
  34 /*
  35  * All the terminal modes that we know about for the "TerminalModes"
  36  * setting. (Also used by config.c for the drop-down list.)
  37  * This is currently precisely the same as the set in ssh.c, but could
  38  * in principle differ if other backends started to support tty modes
  39  * (e.g., the pty backend).
  40  */
  41 const char *const ttymodes[] = {
  42     "INTR",     "QUIT",     "ERASE",    "KILL",     "EOF",
  43     "EOL",      "EOL2",     "START",    "STOP",     "SUSP",
  44     "DSUSP",    "REPRINT",  "WERASE",   "LNEXT",    "FLUSH",
  45     "SWTCH",    "STATUS",   "DISCARD",  "IGNPAR",   "PARMRK",
  46     "INPCK",    "ISTRIP",   "INLCR",    "IGNCR",    "ICRNL",
  47     "IUCLC",    "IXON",     "IXANY",    "IXOFF",    "IMAXBEL",
  48     "ISIG",     "ICANON",   "XCASE",    "ECHO",     "ECHOE",
  49     "ECHOK",    "ECHONL",   "NOFLSH",   "TOSTOP",   "IEXTEN",
  50     "ECHOCTL",  "ECHOKE",   "PENDIN",   "OPOST",    "OLCUC",
  51     "ONLCR",    "OCRNL",    "ONOCR",    "ONLRET",   "CS7",
  52     "CS8",      "PARENB",   "PARODD",   NULL
  53 };
  54
  55 /*
  56  * Convenience functions to access the backends[] array
  57  * (which is only present in tools that manage settings).
  58  */
  59
  60 Backend *backend_from_name(const char *name)
  61 {
  62     Backend **p;
  63     for (p = backends; *p != NULL; p++)
  64         if (!strcmp((*p)->name, name))
  65             return *p;
  66     return NULL;
  67 }
  68
  69 Backend *backend_from_proto(int proto)
  70 {
  71     Backend **p;
  72     for (p = backends; *p != NULL; p++)
  73         if ((*p)->protocol == proto)
  74             return *p;
  75     return NULL;
  76 }
  77
  78 static void gpps(void *handle, const char *name, const char *def,
  79                  char *val, int len)
  80 {
  81     if (!read_setting_s(handle, name, val, len)) {
  82         char *pdef;
  83
  84         pdef = platform_default_s(name);
  85         if (pdef) {
  86             strncpy(val, pdef, len);
  87             sfree(pdef);
  88         } else {
  89             strncpy(val, def, len);
  90         }
  91
  92         val[len - 1] = '\0';
  93     }
  94 }
  95
  96 /*
  97  * gppfont and gppfile cannot have local defaults, since the very
  98  * format of a Filename or Font is platform-dependent. So the
  99  * platform-dependent functions MUST return some sort of value.
 100  */
 101 static void gppfont(void *handle, const char *name, FontSpec *result)
 102 {
 103     if (!read_setting_fontspec(handle, name, result))
 104         *result = platform_default_fontspec(name);
 105 }
 106 static void gppfile(void *handle, const char *name, Filename *result)
 107 {
 108     if (!read_setting_filename(handle, name, result))
 109         *result = platform_default_filename(name);
 110 }
 111
 112 static void gppi(void *handle, char *name, int def, int *i)
 113 {
 114     def = platform_default_i(name, def);
 115     *i = read_setting_i(handle, name, def);
 116 }
 117
 118 /*
 119  * Read a set of name-value pairs in the format we occasionally use:
 120  *   NAME\tVALUE\0NAME\tVALUE\0\0 in memory
 121  *   NAME=VALUE,NAME=VALUE, in storage
 122  * `def' is in the storage format.
 123  */
 124 static void gppmap(void *handle, char *name, char *def, char *val, int len)
 125 {
 126     char *buf = snewn(2*len, char), *p, *q;
 127     gpps(handle, name, def, buf, 2*len);
 128     p = buf;
 129     q = val;
 130     while (*p) {
 131         while (*p && *p != ',') {
 132             int c = *p++;
 133             if (c == '=')
 134                 c = '\t';
 135             if (c == '\\')
 136                 c = *p++;
 137             *q++ = c;
 138         }
 139         if (*p == ',')
 140             p++;
 141         *q++ = '\0';
 142     }
 143     *q = '\0';
 144     sfree(buf);
 145 }
 146
 147 /*
 148  * Write a set of name/value pairs in the above format.
 149  */
 150 static void wmap(void *handle, char const *key, char const *value, int len)
 151 {
 152     char *buf = snewn(2*len, char), *p;
 153     const char *q;
 154     p = buf;
 155     q = value;
 156     while (*q) {
 157         while (*q) {
 158             int c = *q++;
 159             if (c == '=' || c == ',' || c == '\\')
 160                 *p++ = '\\';
 161             if (c == '\t')
 162                 c = '=';
 163             *p++ = c;
 164         }
 165         *p++ = ',';
 166         q++;
 167     }
 168     *p = '\0';
 169     write_setting_s(handle, key, buf);
 170     sfree(buf);
 171 }
 172
 173 static int key2val(const struct keyval *mapping, int nmaps, char *key)
 174 {
 175     int i;
 176     for (i = 0; i < nmaps; i++)
 177         if (!strcmp(mapping[i].s, key)) return mapping[i].v;
 178     return -1;
 179 }
 180
 181 static const char *val2key(const struct keyval *mapping, int nmaps, int val)
 182 {
 183     int i;
 184     for (i = 0; i < nmaps; i++)
 185         if (mapping[i].v == val) return mapping[i].s;
 186     return NULL;
 187 }
 188
 189 /*
 190  * Helper function to parse a comma-separated list of strings into
 191  * a preference list array of values. Any missing values are added
 192  * to the end and duplicates are weeded.
 193  * XXX: assumes vals in 'mapping' are small +ve integers
 194  */
 195 static void gprefs(void *sesskey, char *name, char *def,
 196                    const struct keyval *mapping, int nvals,
 197                    int *array)
 198 {
 199     char commalist[80];
 200     char *tokarg = commalist;
 201     int n;
 202     unsigned long seen = 0;            /* bitmap for weeding dups etc */
 203     gpps(sesskey, name, def, commalist, sizeof(commalist));
 204
 205     /* Grotty parsing of commalist. */
 206     n = 0;
 207     do {
 208         int v;
 209         char *key;
 210         key = strtok(tokarg, ","); /* sorry */
 211         tokarg = NULL;
 212         if (!key) break;
 213         if (((v = key2val(mapping, nvals, key)) != -1) &&
 214             !(seen & 1<<v)) {
 215             array[n] = v;
 216             n++;
 217             seen |= 1<<v;
 218         }
 219     } while (n < nvals);
 220     /* Add any missing values (backward compatibility ect). */
 221     {
 222         int i;
 223         for (i = 0; i < nvals; i++) {
 224             assert(mapping[i].v < 32);
 225             if (!(seen & 1<<mapping[i].v)) {
 226                 array[n] = mapping[i].v;
 227                 n++;
 228             }
 229         }
 230     }
 231 }
 232
 233 /*
 234  * Write out a preference list.
 235  */
 236 static void wprefs(void *sesskey, char *name,
 237                    const struct keyval *mapping, int nvals,
 238                    int *array)
 239 {
 240     char buf[80] = "";  /* XXX assumed big enough */
 241     int l = sizeof(buf)-1, i;
 242     buf[l] = '\0';
 243     for (i = 0; l > 0 && i < nvals; i++) {
 244         const char *s = val2key(mapping, nvals, array[i]);
 245         if (s) {
 246             int sl = strlen(s);
 247             if (i > 0) {
 248                 strncat(buf, ",", l);
 249                 l--;
 250             }
 251             strncat(buf, s, l);
 252             l -= sl;
 253         }
 254     }
 255     write_setting_s(sesskey, name, buf);
 256 }
 257
 258 char *save_settings(char *section, Config * cfg)
 259 {
 260     void *sesskey;
 261     char *errmsg;
 262
 263     sesskey = open_settings_w(section, &errmsg);
 264     if (!sesskey)
 265         return errmsg;
 266     save_open_settings(sesskey, cfg);
 267     close_settings_w(sesskey);
 268     return NULL;
 269 }
 270
 271 void save_open_settings(void *sesskey, Config *cfg)
 272 {
 273     int i;
 274     char *p;
 275
 276     write_setting_i(sesskey, "Present", 1);
 277     write_setting_s(sesskey, "HostName", cfg->host);
 278     write_setting_filename(sesskey, "LogFileName", cfg->logfilename);
 279     write_setting_i(sesskey, "LogType", cfg->logtype);
 280     write_setting_i(sesskey, "LogFileClash", cfg->logxfovr);
 281     write_setting_i(sesskey, "LogFlush", cfg->logflush);
 282     write_setting_i(sesskey, "SSHLogOmitPasswords", cfg->logomitpass);
 283     write_setting_i(sesskey, "SSHLogOmitData", cfg->logomitdata);
 284     p = "raw";
 285     {
 286         const Backend *b = backend_from_proto(cfg->protocol);
 287         if (b)
 288             p = b->name;
 289     }
 290     write_setting_s(sesskey, "Protocol", p);
 291     write_setting_i(sesskey, "PortNumber", cfg->port);
 292     /* The CloseOnExit numbers are arranged in a different order from
 293      * the standard FORCE_ON / FORCE_OFF / AUTO. */
 294     write_setting_i(sesskey, "CloseOnExit", (cfg->close_on_exit+2)%3);
 295     write_setting_i(sesskey, "WarnOnClose", !!cfg->warn_on_close);
 296     write_setting_i(sesskey, "PingInterval", cfg->ping_interval / 60);  /* minutes */
 297     write_setting_i(sesskey, "PingIntervalSecs", cfg->ping_interval % 60);      /* seconds */
 298     write_setting_i(sesskey, "TCPNoDelay", cfg->tcp_nodelay);
 299     write_setting_i(sesskey, "TCPKeepalives", cfg->tcp_keepalives);
 300     write_setting_s(sesskey, "TerminalType", cfg->termtype);
 301     write_setting_s(sesskey, "TerminalSpeed", cfg->termspeed);
 302     wmap(sesskey, "TerminalModes", cfg->ttymodes, lenof(cfg->ttymodes));
 303
 304     /* Address family selection */
 305     write_setting_i(sesskey, "AddressFamily", cfg->addressfamily);
 306
 307     /* proxy settings */
 308     write_setting_s(sesskey, "ProxyExcludeList", cfg->proxy_exclude_list);
 309     write_setting_i(sesskey, "ProxyDNS", (cfg->proxy_dns+2)%3);
 310     write_setting_i(sesskey, "ProxyLocalhost", cfg->even_proxy_localhost);
 311     write_setting_i(sesskey, "ProxyMethod", cfg->proxy_type);
 312     write_setting_s(sesskey, "ProxyHost", cfg->proxy_host);
 313     write_setting_i(sesskey, "ProxyPort", cfg->proxy_port);
 314     write_setting_s(sesskey, "ProxyUsername", cfg->proxy_username);
 315     write_setting_s(sesskey, "ProxyPassword", cfg->proxy_password);
 316     write_setting_s(sesskey, "ProxyTelnetCommand", cfg->proxy_telnet_command);
 317     wmap(sesskey, "Environment", cfg->environmt, lenof(cfg->environmt));
 318     write_setting_s(sesskey, "UserName", cfg->username);
 319     write_setting_s(sesskey, "LocalUserName", cfg->localusername);
 320     write_setting_i(sesskey, "NoPTY", cfg->nopty);
 321     write_setting_i(sesskey, "Compression", cfg->compression);
 322     write_setting_i(sesskey, "TryAgent", cfg->tryagent);
 323     write_setting_i(sesskey, "AgentFwd", cfg->agentfwd);
 324     write_setting_i(sesskey, "ChangeUsername", cfg->change_username);
 325     wprefs(sesskey, "Cipher", ciphernames, CIPHER_MAX,
 326            cfg->ssh_cipherlist);
 327     wprefs(sesskey, "KEX", kexnames, KEX_MAX, cfg->ssh_kexlist);
 328     write_setting_i(sesskey, "RekeyTime", cfg->ssh_rekey_time);
 329     write_setting_s(sesskey, "RekeyBytes", cfg->ssh_rekey_data);
 330     write_setting_i(sesskey, "SshNoAuth", cfg->ssh_no_userauth);
 331     write_setting_i(sesskey, "AuthTIS", cfg->try_tis_auth);
 332     write_setting_i(sesskey, "AuthKI", cfg->try_ki_auth);
 333     write_setting_i(sesskey, "SshNoShell", cfg->ssh_no_shell);
 334     write_setting_i(sesskey, "SshProt", cfg->sshprot);
 335     write_setting_s(sesskey, "LogHost", cfg->loghost);
 336     write_setting_i(sesskey, "SSH2DES", cfg->ssh2_des_cbc);
 337     write_setting_filename(sesskey, "PublicKeyFile", cfg->keyfile);
 338     write_setting_s(sesskey, "RemoteCommand", cfg->remote_cmd);
 339     write_setting_i(sesskey, "RFCEnviron", cfg->rfc_environ);
 340     write_setting_i(sesskey, "PassiveTelnet", cfg->passive_telnet);
 341     write_setting_i(sesskey, "BackspaceIsDelete", cfg->bksp_is_delete);
 342     write_setting_i(sesskey, "RXVTHomeEnd", cfg->rxvt_homeend);
 343     write_setting_i(sesskey, "LinuxFunctionKeys", cfg->funky_type);
 344     write_setting_i(sesskey, "NoApplicationKeys", cfg->no_applic_k);
 345     write_setting_i(sesskey, "NoApplicationCursors", cfg->no_applic_c);
 346     write_setting_i(sesskey, "NoMouseReporting", cfg->no_mouse_rep);
 347     write_setting_i(sesskey, "NoRemoteResize", cfg->no_remote_resize);
 348     write_setting_i(sesskey, "NoAltScreen", cfg->no_alt_screen);
 349     write_setting_i(sesskey, "NoRemoteWinTitle", cfg->no_remote_wintitle);
 350     write_setting_i(sesskey, "RemoteQTitleAction", cfg->remote_qtitle_action);
 351     write_setting_i(sesskey, "NoDBackspace", cfg->no_dbackspace);
 352     write_setting_i(sesskey, "NoRemoteCharset", cfg->no_remote_charset);
 353     write_setting_i(sesskey, "ApplicationCursorKeys", cfg->app_cursor);
 354     write_setting_i(sesskey, "ApplicationKeypad", cfg->app_keypad);
 355     write_setting_i(sesskey, "NetHackKeypad", cfg->nethack_keypad);
 356     write_setting_i(sesskey, "AltF4", cfg->alt_f4);
 357     write_setting_i(sesskey, "AltSpace", cfg->alt_space);
 358     write_setting_i(sesskey, "AltOnly", cfg->alt_only);
 359     write_setting_i(sesskey, "ComposeKey", cfg->compose_key);
 360     write_setting_i(sesskey, "CtrlAltKeys", cfg->ctrlaltkeys);
 361     write_setting_i(sesskey, "TelnetKey", cfg->telnet_keyboard);
 362     write_setting_i(sesskey, "TelnetRet", cfg->telnet_newline);
 363     write_setting_i(sesskey, "LocalEcho", cfg->localecho);
 364     write_setting_i(sesskey, "LocalEdit", cfg->localedit);
 365     write_setting_s(sesskey, "Answerback", cfg->answerback);
 366     write_setting_i(sesskey, "AlwaysOnTop", cfg->alwaysontop);
 367     write_setting_i(sesskey, "FullScreenOnAltEnter", cfg->fullscreenonaltenter);
 368     write_setting_i(sesskey, "HideMousePtr", cfg->hide_mouseptr);
 369     write_setting_i(sesskey, "SunkenEdge", cfg->sunken_edge);
 370     write_setting_i(sesskey, "WindowBorder", cfg->window_border);
 371     write_setting_i(sesskey, "CurType", cfg->cursor_type);
 372     write_setting_i(sesskey, "BlinkCur", cfg->blink_cur);
 373     write_setting_i(sesskey, "Beep", cfg->beep);
 374     write_setting_i(sesskey, "BeepInd", cfg->beep_ind);
 375     write_setting_filename(sesskey, "BellWaveFile", cfg->bell_wavefile);
 376     write_setting_i(sesskey, "BellOverload", cfg->bellovl);
 377     write_setting_i(sesskey, "BellOverloadN", cfg->bellovl_n);
 378     write_setting_i(sesskey, "BellOverloadT", cfg->bellovl_t
 379 #ifdef PUTTY_UNIX_H
 380                     * 1000
 381 #endif
 382                     );
 383     write_setting_i(sesskey, "BellOverloadS", cfg->bellovl_s
 384 #ifdef PUTTY_UNIX_H
 385                     * 1000
 386 #endif
 387                     );
 388     write_setting_i(sesskey, "ScrollbackLines", cfg->savelines);
 389     write_setting_i(sesskey, "DECOriginMode", cfg->dec_om);
 390     write_setting_i(sesskey, "AutoWrapMode", cfg->wrap_mode);
 391     write_setting_i(sesskey, "LFImpliesCR", cfg->lfhascr);
 392     write_setting_i(sesskey, "CRImpliesLF", cfg->crhaslf);
 393     write_setting_i(sesskey, "DisableArabicShaping", cfg->arabicshaping);
 394     write_setting_i(sesskey, "DisableBidi", cfg->bidi);
 395     write_setting_i(sesskey, "WinNameAlways", cfg->win_name_always);
 396     write_setting_s(sesskey, "WinTitle", cfg->wintitle);
 397     write_setting_i(sesskey, "TermWidth", cfg->width);
 398     write_setting_i(sesskey, "TermHeight", cfg->height);
 399     write_setting_fontspec(sesskey, "Font", cfg->font);
 400     write_setting_i(sesskey, "FontQuality", cfg->font_quality);
 401     write_setting_i(sesskey, "FontVTMode", cfg->vtmode);
 402     write_setting_i(sesskey, "UseSystemColours", cfg->system_colour);
 403     write_setting_i(sesskey, "TryPalette", cfg->try_palette);
 404     write_setting_i(sesskey, "ANSIColour", cfg->ansi_colour);
 405     write_setting_i(sesskey, "Xterm256Colour", cfg->xterm_256_colour);
 406     write_setting_i(sesskey, "BoldAsColour", cfg->bold_colour);
 407
 408     for (i = 0; i < 22; i++) {
 409         char buf[20], buf2[30];
 410         sprintf(buf, "Colour%d", i);
 411         sprintf(buf2, "%d,%d,%d", cfg->colours[i][0],
 412                 cfg->colours[i][1], cfg->colours[i][2]);
 413         write_setting_s(sesskey, buf, buf2);
 414     }
 415     write_setting_i(sesskey, "RawCNP", cfg->rawcnp);
 416     write_setting_i(sesskey, "PasteRTF", cfg->rtf_paste);
 417     write_setting_i(sesskey, "MouseIsXterm", cfg->mouse_is_xterm);
 418     write_setting_i(sesskey, "RectSelect", cfg->rect_select);
 419     write_setting_i(sesskey, "MouseOverride", cfg->mouse_override);
 420     for (i = 0; i < 256; i += 32) {
 421         char buf[20], buf2[256];
 422         int j;
 423         sprintf(buf, "Wordness%d", i);
 424         *buf2 = '\0';
 425         for (j = i; j < i + 32; j++) {
 426             sprintf(buf2 + strlen(buf2), "%s%d",
 427                     (*buf2 ? "," : ""), cfg->wordness[j]);
 428         }
 429         write_setting_s(sesskey, buf, buf2);
 430     }
 431     write_setting_s(sesskey, "LineCodePage", cfg->line_codepage);
 432     write_setting_i(sesskey, "CJKAmbigWide", cfg->cjk_ambig_wide);
 433     write_setting_i(sesskey, "UTF8Override", cfg->utf8_override);
 434     write_setting_s(sesskey, "Printer", cfg->printer);
 435     write_setting_i(sesskey, "CapsLockCyr", cfg->xlat_capslockcyr);
 436     write_setting_i(sesskey, "ScrollBar", cfg->scrollbar);
 437     write_setting_i(sesskey, "ScrollBarFullScreen", cfg->scrollbar_in_fullscreen);
 438     write_setting_i(sesskey, "ScrollOnKey", cfg->scroll_on_key);
 439     write_setting_i(sesskey, "ScrollOnDisp", cfg->scroll_on_disp);
 440     write_setting_i(sesskey, "EraseToScrollback", cfg->erase_to_scrollback);
 441     write_setting_i(sesskey, "LockSize", cfg->resize_action);
 442     write_setting_i(sesskey, "BCE", cfg->bce);
 443     write_setting_i(sesskey, "BlinkText", cfg->blinktext);
 444     write_setting_i(sesskey, "X11Forward", cfg->x11_forward);
 445     write_setting_s(sesskey, "X11Display", cfg->x11_display);
 446     write_setting_i(sesskey, "X11AuthType", cfg->x11_auth);
 447     write_setting_i(sesskey, "LocalPortAcceptAll", cfg->lport_acceptall);
 448     write_setting_i(sesskey, "RemotePortAcceptAll", cfg->rport_acceptall);
 449     wmap(sesskey, "PortForwardings", cfg->portfwd, lenof(cfg->portfwd));
 450     write_setting_i(sesskey, "BugIgnore1", 2-cfg->sshbug_ignore1);
 451     write_setting_i(sesskey, "BugPlainPW1", 2-cfg->sshbug_plainpw1);
 452     write_setting_i(sesskey, "BugRSA1", 2-cfg->sshbug_rsa1);
 453     write_setting_i(sesskey, "BugHMAC2", 2-cfg->sshbug_hmac2);
 454     write_setting_i(sesskey, "BugDeriveKey2", 2-cfg->sshbug_derivekey2);
 455     write_setting_i(sesskey, "BugRSAPad2", 2-cfg->sshbug_rsapad2);
 456     write_setting_i(sesskey, "BugPKSessID2", 2-cfg->sshbug_pksessid2);
 457     write_setting_i(sesskey, "BugRekey2", 2-cfg->sshbug_rekey2);
 458     write_setting_i(sesskey, "BugMaxPkt2", 2-cfg->sshbug_maxpkt2);
 459     write_setting_i(sesskey, "StampUtmp", cfg->stamp_utmp);
 460     write_setting_i(sesskey, "LoginShell", cfg->login_shell);
 461     write_setting_i(sesskey, "ScrollbarOnLeft", cfg->scrollbar_on_left);
 462     write_setting_fontspec(sesskey, "BoldFont", cfg->boldfont);
 463     write_setting_fontspec(sesskey, "WideFont", cfg->widefont);
 464     write_setting_fontspec(sesskey, "WideBoldFont", cfg->wideboldfont);
 465     write_setting_i(sesskey, "ShadowBold", cfg->shadowbold);
 466     write_setting_i(sesskey, "ShadowBoldOffset", cfg->shadowboldoffset);
 467     write_setting_s(sesskey, "SerialLine", cfg->serline);
 468     write_setting_i(sesskey, "SerialSpeed", cfg->serspeed);
 469     write_setting_i(sesskey, "SerialDataBits", cfg->serdatabits);
 470     write_setting_i(sesskey, "SerialStopHalfbits", cfg->serstopbits);
 471     write_setting_i(sesskey, "SerialParity", cfg->serparity);
 472     write_setting_i(sesskey, "SerialFlowControl", cfg->serflow);
 473 }
 474
 475 void load_settings(char *section, Config * cfg)
 476 {
 477     void *sesskey;
 478
 479     sesskey = open_settings_r(section);
 480     load_open_settings(sesskey, cfg);
 481     close_settings_r(sesskey);
 482 }
 483
 484 void load_open_settings(void *sesskey, Config *cfg)
 485 {
 486     int i;
 487     char prot[10];
 488
 489     cfg->ssh_subsys = 0;               /* FIXME: load this properly */
 490     cfg->remote_cmd_ptr = NULL;
 491     cfg->remote_cmd_ptr2 = NULL;
 492     cfg->ssh_nc_host[0] = '\0';
 493
 494     gpps(sesskey, "HostName", "", cfg->host, sizeof(cfg->host));
 495     gppfile(sesskey, "LogFileName", &cfg->logfilename);
 496     gppi(sesskey, "LogType", 0, &cfg->logtype);
 497     gppi(sesskey, "LogFileClash", LGXF_ASK, &cfg->logxfovr);
 498     gppi(sesskey, "LogFlush", 1, &cfg->logflush);
 499     gppi(sesskey, "SSHLogOmitPasswords", 1, &cfg->logomitpass);
 500     gppi(sesskey, "SSHLogOmitData", 0, &cfg->logomitdata);
 501
 502     gpps(sesskey, "Protocol", "default", prot, 10);
 503     cfg->protocol = default_protocol;
 504     cfg->port = default_port;
 505     {
 506         const Backend *b = backend_from_name(prot);
 507         if (b) {
 508             cfg->protocol = b->protocol;
 509             gppi(sesskey, "PortNumber", default_port, &cfg->port);
 510         }
 511     }
 512
 513     /* Address family selection */
 514     gppi(sesskey, "AddressFamily", ADDRTYPE_UNSPEC, &cfg->addressfamily);
 515
 516     /* The CloseOnExit numbers are arranged in a different order from
 517      * the standard FORCE_ON / FORCE_OFF / AUTO. */
 518     gppi(sesskey, "CloseOnExit", 1, &i); cfg->close_on_exit = (i+1)%3;
 519     gppi(sesskey, "WarnOnClose", 1, &cfg->warn_on_close);
 520     {
 521         /* This is two values for backward compatibility with 0.50/0.51 */
 522         int pingmin, pingsec;
 523         gppi(sesskey, "PingInterval", 0, &pingmin);
 524         gppi(sesskey, "PingIntervalSecs", 0, &pingsec);
 525         cfg->ping_interval = pingmin * 60 + pingsec;
 526     }
 527     gppi(sesskey, "TCPNoDelay", 1, &cfg->tcp_nodelay);
 528     gppi(sesskey, "TCPKeepalives", 0, &cfg->tcp_keepalives);
 529     gpps(sesskey, "TerminalType", "xterm", cfg->termtype,
 530          sizeof(cfg->termtype));
 531     gpps(sesskey, "TerminalSpeed", "38400,38400", cfg->termspeed,
 532          sizeof(cfg->termspeed));
 533     {
 534         /* This hardcodes a big set of defaults in any new saved
 535          * sessions. Let's hope we don't change our mind. */
 536         int i;
 537         char *def = dupstr("");
 538         /* Default: all set to "auto" */
 539         for (i = 0; ttymodes[i]; i++) {
 540             char *def2 = dupprintf("%s%s=A,", def, ttymodes[i]);
 541             sfree(def);
 542             def = def2;
 543         }
 544         gppmap(sesskey, "TerminalModes", def,
 545                cfg->ttymodes, lenof(cfg->ttymodes));
 546         sfree(def);
 547     }
 548
 549     /* proxy settings */
 550     gpps(sesskey, "ProxyExcludeList", "", cfg->proxy_exclude_list,
 551          sizeof(cfg->proxy_exclude_list));
 552     gppi(sesskey, "ProxyDNS", 1, &i); cfg->proxy_dns = (i+1)%3;
 553     gppi(sesskey, "ProxyLocalhost", 0, &cfg->even_proxy_localhost);
 554     gppi(sesskey, "ProxyMethod", -1, &cfg->proxy_type);
 555     if (cfg->proxy_type == -1) {
 556         int i;
 557         gppi(sesskey, "ProxyType", 0, &i);
 558         if (i == 0)
 559             cfg->proxy_type = PROXY_NONE;
 560         else if (i == 1)
 561             cfg->proxy_type = PROXY_HTTP;
 562         else if (i == 3)
 563             cfg->proxy_type = PROXY_TELNET;
 564         else if (i == 4)
 565             cfg->proxy_type = PROXY_CMD;
 566         else {
 567             gppi(sesskey, "ProxySOCKSVersion", 5, &i);
 568             if (i == 5)
 569                 cfg->proxy_type = PROXY_SOCKS5;
 570             else
 571                 cfg->proxy_type = PROXY_SOCKS4;
 572         }
 573     }
 574     gpps(sesskey, "ProxyHost", "proxy", cfg->proxy_host,
 575          sizeof(cfg->proxy_host));
 576     gppi(sesskey, "ProxyPort", 80, &cfg->proxy_port);
 577     gpps(sesskey, "ProxyUsername", "", cfg->proxy_username,
 578          sizeof(cfg->proxy_username));
 579     gpps(sesskey, "ProxyPassword", "", cfg->proxy_password,
 580          sizeof(cfg->proxy_password));
 581     gpps(sesskey, "ProxyTelnetCommand", "connect %host %port\\n",
 582          cfg->proxy_telnet_command, sizeof(cfg->proxy_telnet_command));
 583     gppmap(sesskey, "Environment", "", cfg->environmt, lenof(cfg->environmt));
 584     gpps(sesskey, "UserName", "", cfg->username, sizeof(cfg->username));
 585     gpps(sesskey, "LocalUserName", "", cfg->localusername,
 586          sizeof(cfg->localusername));
 587     gppi(sesskey, "NoPTY", 0, &cfg->nopty);
 588     gppi(sesskey, "Compression", 0, &cfg->compression);
 589     gppi(sesskey, "TryAgent", 1, &cfg->tryagent);
 590     gppi(sesskey, "AgentFwd", 0, &cfg->agentfwd);
 591     gppi(sesskey, "ChangeUsername", 0, &cfg->change_username);
 592     gprefs(sesskey, "Cipher", "\0",
 593            ciphernames, CIPHER_MAX, cfg->ssh_cipherlist);
 594     {
 595         /* Backward-compatibility: we used to have an option to
 596          * disable gex under the "bugs" panel after one report of
 597          * a server which offered it then choked, but we never got
 598          * a server version string or any other reports. */
 599         char *default_kexes;
 600         gppi(sesskey, "BugDHGEx2", 0, &i); i = 2-i;
 601         if (i == FORCE_ON)
 602             default_kexes = "dh-group14-sha1,dh-group1-sha1,rsa,WARN,dh-gex-sha1";
 603         else
 604             default_kexes = "dh-gex-sha1,dh-group14-sha1,dh-group1-sha1,rsa,WARN";
 605         gprefs(sesskey, "KEX", default_kexes,
 606                kexnames, KEX_MAX, cfg->ssh_kexlist);
 607     }
 608     gppi(sesskey, "RekeyTime", 60, &cfg->ssh_rekey_time);
 609     gpps(sesskey, "RekeyBytes", "1G", cfg->ssh_rekey_data,
 610          sizeof(cfg->ssh_rekey_data));
 611     gppi(sesskey, "SshProt", 2, &cfg->sshprot);
 612     gpps(sesskey, "LogHost", "", cfg->loghost, sizeof(cfg->loghost));
 613     gppi(sesskey, "SSH2DES", 0, &cfg->ssh2_des_cbc);
 614     gppi(sesskey, "SshNoAuth", 0, &cfg->ssh_no_userauth);
 615     gppi(sesskey, "AuthTIS", 0, &cfg->try_tis_auth);
 616     gppi(sesskey, "AuthKI", 1, &cfg->try_ki_auth);
 617     gppi(sesskey, "SshNoShell", 0, &cfg->ssh_no_shell);
 618     gppfile(sesskey, "PublicKeyFile", &cfg->keyfile);
 619     gpps(sesskey, "RemoteCommand", "", cfg->remote_cmd,
 620          sizeof(cfg->remote_cmd));
 621     gppi(sesskey, "RFCEnviron", 0, &cfg->rfc_environ);
 622     gppi(sesskey, "PassiveTelnet", 0, &cfg->passive_telnet);
 623     gppi(sesskey, "BackspaceIsDelete", 1, &cfg->bksp_is_delete);
 624     gppi(sesskey, "RXVTHomeEnd", 0, &cfg->rxvt_homeend);
 625     gppi(sesskey, "LinuxFunctionKeys", 0, &cfg->funky_type);
 626     gppi(sesskey, "NoApplicationKeys", 0, &cfg->no_applic_k);
 627     gppi(sesskey, "NoApplicationCursors", 0, &cfg->no_applic_c);
 628     gppi(sesskey, "NoMouseReporting", 0, &cfg->no_mouse_rep);
 629     gppi(sesskey, "NoRemoteResize", 0, &cfg->no_remote_resize);
 630     gppi(sesskey, "NoAltScreen", 0, &cfg->no_alt_screen);
 631     gppi(sesskey, "NoRemoteWinTitle", 0, &cfg->no_remote_wintitle);
 632     {
 633         /* Backward compatibility */
 634         int no_remote_qtitle;
 635         gppi(sesskey, "NoRemoteQTitle", 1, &no_remote_qtitle);
 636         /* We deliberately interpret the old setting of "no response" as
 637          * "empty string". This changes the behaviour, but hopefully for
 638          * the better; the user can always recover the old behaviour. */
 639         gppi(sesskey, "RemoteQTitleAction",
 640              no_remote_qtitle ? TITLE_EMPTY : TITLE_REAL,
 641              &cfg->remote_qtitle_action);
 642     }
 643     gppi(sesskey, "NoDBackspace", 0, &cfg->no_dbackspace);
 644     gppi(sesskey, "NoRemoteCharset", 0, &cfg->no_remote_charset);
 645     gppi(sesskey, "ApplicationCursorKeys", 0, &cfg->app_cursor);
 646     gppi(sesskey, "ApplicationKeypad", 0, &cfg->app_keypad);
 647     gppi(sesskey, "NetHackKeypad", 0, &cfg->nethack_keypad);
 648     gppi(sesskey, "AltF4", 1, &cfg->alt_f4);
 649     gppi(sesskey, "AltSpace", 0, &cfg->alt_space);
 650     gppi(sesskey, "AltOnly", 0, &cfg->alt_only);
 651     gppi(sesskey, "ComposeKey", 0, &cfg->compose_key);
 652     gppi(sesskey, "CtrlAltKeys", 1, &cfg->ctrlaltkeys);
 653     gppi(sesskey, "TelnetKey", 0, &cfg->telnet_keyboard);
 654     gppi(sesskey, "TelnetRet", 1, &cfg->telnet_newline);
 655     gppi(sesskey, "LocalEcho", AUTO, &cfg->localecho);
 656     gppi(sesskey, "LocalEdit", AUTO, &cfg->localedit);
 657     gpps(sesskey, "Answerback", "PuTTY", cfg->answerback,
 658          sizeof(cfg->answerback));
 659     gppi(sesskey, "AlwaysOnTop", 0, &cfg->alwaysontop);
 660     gppi(sesskey, "FullScreenOnAltEnter", 0, &cfg->fullscreenonaltenter);
 661     gppi(sesskey, "HideMousePtr", 0, &cfg->hide_mouseptr);
 662     gppi(sesskey, "SunkenEdge", 0, &cfg->sunken_edge);
 663     gppi(sesskey, "WindowBorder", 1, &cfg->window_border);
 664     gppi(sesskey, "CurType", 0, &cfg->cursor_type);
 665     gppi(sesskey, "BlinkCur", 0, &cfg->blink_cur);
 666     /* pedantic compiler tells me I can't use &cfg->beep as an int * :-) */
 667     gppi(sesskey, "Beep", 1, &cfg->beep);
 668     gppi(sesskey, "BeepInd", 0, &cfg->beep_ind);
 669     gppfile(sesskey, "BellWaveFile", &cfg->bell_wavefile);
 670     gppi(sesskey, "BellOverload", 1, &cfg->bellovl);
 671     gppi(sesskey, "BellOverloadN", 5, &cfg->bellovl_n);
 672     gppi(sesskey, "BellOverloadT", 2*TICKSPERSEC, &i);
 673     cfg->bellovl_t = i
 674 #ifdef PUTTY_UNIX_H
 675                     / 1000
 676 #endif
 677         ;
 678     gppi(sesskey, "BellOverloadS", 5*TICKSPERSEC, &i);
 679     cfg->bellovl_s = i
 680 #ifdef PUTTY_UNIX_H
 681                     / 1000
 682 #endif
 683         ;
 684     gppi(sesskey, "ScrollbackLines", 200, &cfg->savelines);
 685     gppi(sesskey, "DECOriginMode", 0, &cfg->dec_om);
 686     gppi(sesskey, "AutoWrapMode", 1, &cfg->wrap_mode);
 687     gppi(sesskey, "LFImpliesCR", 0, &cfg->lfhascr);
 688     gppi(sesskey, "CRImpliesLF", 0, &cfg->crhaslf);
 689     gppi(sesskey, "DisableArabicShaping", 0, &cfg->arabicshaping);
 690     gppi(sesskey, "DisableBidi", 0, &cfg->bidi);
 691     gppi(sesskey, "WinNameAlways", 1, &cfg->win_name_always);
 692     gpps(sesskey, "WinTitle", "", cfg->wintitle, sizeof(cfg->wintitle));
 693     gppi(sesskey, "TermWidth", 80, &cfg->width);
 694     gppi(sesskey, "TermHeight", 24, &cfg->height);
 695     gppfont(sesskey, "Font", &cfg->font);
 696     gppi(sesskey, "FontQuality", FQ_DEFAULT, &cfg->font_quality);
 697     gppi(sesskey, "FontVTMode", VT_UNICODE, (int *) &cfg->vtmode);
 698     gppi(sesskey, "UseSystemColours", 0, &cfg->system_colour);
 699     gppi(sesskey, "TryPalette", 0, &cfg->try_palette);
 700     gppi(sesskey, "ANSIColour", 1, &cfg->ansi_colour);
 701     gppi(sesskey, "Xterm256Colour", 1, &cfg->xterm_256_colour);
 702     gppi(sesskey, "BoldAsColour", 1, &cfg->bold_colour);
 703
 704     for (i = 0; i < 22; i++) {
 705         static const char *const defaults[] = {
 706             "187,187,187", "255,255,255", "0,0,0", "85,85,85", "0,0,0",
 707             "0,255,0", "0,0,0", "85,85,85", "187,0,0", "255,85,85",
 708             "0,187,0", "85,255,85", "187,187,0", "255,255,85", "0,0,187",
 709             "85,85,255", "187,0,187", "255,85,255", "0,187,187",
 710             "85,255,255", "187,187,187", "255,255,255"
 711         };
 712         char buf[20], buf2[30];
 713         int c0, c1, c2;
 714         sprintf(buf, "Colour%d", i);
 715         gpps(sesskey, buf, defaults[i], buf2, sizeof(buf2));
 716         if (sscanf(buf2, "%d,%d,%d", &c0, &c1, &c2) == 3) {
 717             cfg->colours[i][0] = c0;
 718             cfg->colours[i][1] = c1;
 719             cfg->colours[i][2] = c2;
 720         }
 721     }
 722     gppi(sesskey, "RawCNP", 0, &cfg->rawcnp);
 723     gppi(sesskey, "PasteRTF", 0, &cfg->rtf_paste);
 724     gppi(sesskey, "MouseIsXterm", 0, &cfg->mouse_is_xterm);
 725     gppi(sesskey, "RectSelect", 0, &cfg->rect_select);
 726     gppi(sesskey, "MouseOverride", 1, &cfg->mouse_override);
 727     for (i = 0; i < 256; i += 32) {
 728         static const char *const defaults[] = {
 729             "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",
 730             "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",
 731             "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",
 732             "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",
 733             "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",
 734             "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",
 735             "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",
 736             "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"
 737         };
 738         char buf[20], buf2[256], *p;
 739         int j;
 740         sprintf(buf, "Wordness%d", i);
 741         gpps(sesskey, buf, defaults[i / 32], buf2, sizeof(buf2));
 742         p = buf2;
 743         for (j = i; j < i + 32; j++) {
 744             char *q = p;
 745             while (*p && *p != ',')
 746                 p++;
 747             if (*p == ',')
 748                 *p++ = '\0';
 749             cfg->wordness[j] = atoi(q);
 750         }
 751     }
 752     /*
 753      * The empty default for LineCodePage will be converted later
 754      * into a plausible default for the locale.
 755      */
 756     gpps(sesskey, "LineCodePage", "", cfg->line_codepage,
 757          sizeof(cfg->line_codepage));
 758     gppi(sesskey, "CJKAmbigWide", 0, &cfg->cjk_ambig_wide);
 759     gppi(sesskey, "UTF8Override", 1, &cfg->utf8_override);
 760     gpps(sesskey, "Printer", "", cfg->printer, sizeof(cfg->printer));
 761     gppi (sesskey, "CapsLockCyr", 0, &cfg->xlat_capslockcyr);
 762     gppi(sesskey, "ScrollBar", 1, &cfg->scrollbar);
 763     gppi(sesskey, "ScrollBarFullScreen", 0, &cfg->scrollbar_in_fullscreen);
 764     gppi(sesskey, "ScrollOnKey", 0, &cfg->scroll_on_key);
 765     gppi(sesskey, "ScrollOnDisp", 1, &cfg->scroll_on_disp);
 766     gppi(sesskey, "EraseToScrollback", 1, &cfg->erase_to_scrollback);
 767     gppi(sesskey, "LockSize", 0, &cfg->resize_action);
 768     gppi(sesskey, "BCE", 1, &cfg->bce);
 769     gppi(sesskey, "BlinkText", 0, &cfg->blinktext);
 770     gppi(sesskey, "X11Forward", 0, &cfg->x11_forward);
 771     gpps(sesskey, "X11Display", "", cfg->x11_display,
 772          sizeof(cfg->x11_display));
 773     gppi(sesskey, "X11AuthType", X11_MIT, &cfg->x11_auth);
 774
 775     gppi(sesskey, "LocalPortAcceptAll", 0, &cfg->lport_acceptall);
 776     gppi(sesskey, "RemotePortAcceptAll", 0, &cfg->rport_acceptall);
 777     gppmap(sesskey, "PortForwardings", "", cfg->portfwd, lenof(cfg->portfwd));
 778     gppi(sesskey, "BugIgnore1", 0, &i); cfg->sshbug_ignore1 = 2-i;
 779     gppi(sesskey, "BugPlainPW1", 0, &i); cfg->sshbug_plainpw1 = 2-i;
 780     gppi(sesskey, "BugRSA1", 0, &i); cfg->sshbug_rsa1 = 2-i;
 781     {
 782         int i;
 783         gppi(sesskey, "BugHMAC2", 0, &i); cfg->sshbug_hmac2 = 2-i;
 784         if (cfg->sshbug_hmac2 == AUTO) {
 785             gppi(sesskey, "BuggyMAC", 0, &i);
 786             if (i == 1)
 787                 cfg->sshbug_hmac2 = FORCE_ON;
 788         }
 789     }
 790     gppi(sesskey, "BugDeriveKey2", 0, &i); cfg->sshbug_derivekey2 = 2-i;
 791     gppi(sesskey, "BugRSAPad2", 0, &i); cfg->sshbug_rsapad2 = 2-i;
 792     gppi(sesskey, "BugPKSessID2", 0, &i); cfg->sshbug_pksessid2 = 2-i;
 793     gppi(sesskey, "BugRekey2", 0, &i); cfg->sshbug_rekey2 = 2-i;
 794     gppi(sesskey, "BugMaxPkt2", 0, &i); cfg->sshbug_maxpkt2 = 2-i;
 795     cfg->ssh_simple = FALSE;
 796     gppi(sesskey, "StampUtmp", 1, &cfg->stamp_utmp);
 797     gppi(sesskey, "LoginShell", 1, &cfg->login_shell);
 798     gppi(sesskey, "ScrollbarOnLeft", 0, &cfg->scrollbar_on_left);
 799     gppi(sesskey, "ShadowBold", 0, &cfg->shadowbold);
 800     gppfont(sesskey, "BoldFont", &cfg->boldfont);
 801     gppfont(sesskey, "WideFont", &cfg->widefont);
 802     gppfont(sesskey, "WideBoldFont", &cfg->wideboldfont);
 803     gppi(sesskey, "ShadowBoldOffset", 1, &cfg->shadowboldoffset);
 804     gpps(sesskey, "SerialLine", "", cfg->serline, sizeof(cfg->serline));
 805     gppi(sesskey, "SerialSpeed", 9600, &cfg->serspeed);
 806     gppi(sesskey, "SerialDataBits", 8, &cfg->serdatabits);
 807     gppi(sesskey, "SerialStopHalfbits", 2, &cfg->serstopbits);
 808     gppi(sesskey, "SerialParity", SER_PAR_NONE, &cfg->serparity);
 809     gppi(sesskey, "SerialFlowControl", SER_FLOW_XONXOFF, &cfg->serflow);
 810 }
 811
 812 void do_defaults(char *session, Config * cfg)
 813 {
 814     load_settings(session, cfg);
 815 }
 816
 817 static int sessioncmp(const void *av, const void *bv)
 818 {
 819     const char *a = *(const char *const *) av;
 820     const char *b = *(const char *const *) bv;
 821
 822     /*
 823      * Alphabetical order, except that "Default Settings" is a
 824      * special case and comes first.
 825      */
 826     if (!strcmp(a, "Default Settings"))
 827         return -1;                     /* a comes first */
 828     if (!strcmp(b, "Default Settings"))
 829         return +1;                     /* b comes first */
 830     /*
 831      * FIXME: perhaps we should ignore the first & in determining
 832      * sort order.
 833      */
 834     return strcmp(a, b);               /* otherwise, compare normally */
 835 }
 836
 837 void get_sesslist(struct sesslist *list, int allocate)
 838 {
 839     char otherbuf[2048];
 840     int buflen, bufsize, i;
 841     char *p, *ret;
 842     void *handle;
 843
 844     if (allocate) {
 845
 846         buflen = bufsize = 0;
 847         list->buffer = NULL;
 848         if ((handle = enum_settings_start()) != NULL) {
 849             do {
 850                 ret = enum_settings_next(handle, otherbuf, sizeof(otherbuf));
 851                 if (ret) {
 852                     int len = strlen(otherbuf) + 1;
 853                     if (bufsize < buflen + len) {
 854                         bufsize = buflen + len + 2048;
 855                         list->buffer = sresize(list->buffer, bufsize, char);
 856                     }
 857                     strcpy(list->buffer + buflen, otherbuf);
 858                     buflen += strlen(list->buffer + buflen) + 1;
 859                 }
 860             } while (ret);
 861             enum_settings_finish(handle);
 862         }
 863         list->buffer = sresize(list->buffer, buflen + 1, char);
 864         list->buffer[buflen] = '\0';
 865
 866         /*
 867          * Now set up the list of sessions. Note that "Default
 868          * Settings" must always be claimed to exist, even if it
 869          * doesn't really.
 870          */
 871
 872         p = list->buffer;
 873         list->nsessions = 1;           /* "Default Settings" counts as one */
 874         while (*p) {
 875             if (strcmp(p, "Default Settings"))
 876                 list->nsessions++;
 877             while (*p)
 878                 p++;
 879             p++;
 880         }
 881
 882         list->sessions = snewn(list->nsessions + 1, char *);
 883         list->sessions[0] = "Default Settings";
 884         p = list->buffer;
 885         i = 1;
 886         while (*p) {
 887             if (strcmp(p, "Default Settings"))
 888                 list->sessions[i++] = p;
 889             while (*p)
 890                 p++;
 891             p++;
 892         }
 893
 894         qsort(list->sessions, i, sizeof(char *), sessioncmp);
 895     } else {
 896         sfree(list->buffer);
 897         sfree(list->sessions);
 898         list->buffer = NULL;
 899         list->sessions = NULL;
 900     }
 901 }