/[cvs]/eggdrop1.8/src/tcl.c
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Revision 1.13 - (hide annotations) (download) (as text)
Wed Jul 31 01:09:33 2013 UTC (5 years, 9 months ago) by thommey
Branch: MAIN
CVS Tags: HEAD
Changes since 1.12: +3 -146 lines
File MIME type: text/x-chdr
apply two patches of guppy that were missing

1 simple 1.1 /*
2     * tcl.c -- handles:
3     * the code for every command eggdrop adds to Tcl
4     * Tcl initialization
5     * getting and setting Tcl/eggdrop variables
6     *
7 thommey 1.13 * $Id: tcl.c,v 1.12 2012/06/19 14:27:17 thommey Exp $
8 simple 1.1 */
9     /*
10     * Copyright (C) 1997 Robey Pointer
11     * Copyright (C) 1999 - 2010 Eggheads Development Team
12     *
13     * This program is free software; you can redistribute it and/or
14     * modify it under the terms of the GNU General Public License
15     * as published by the Free Software Foundation; either version 2
16     * of the License, or (at your option) any later version.
17     *
18     * This program is distributed in the hope that it will be useful,
19     * but WITHOUT ANY WARRANTY; without even the implied warranty of
20     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21     * GNU General Public License for more details.
22     *
23     * You should have received a copy of the GNU General Public License
24     * along with this program; if not, write to the Free Software
25     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26     */
27    
28     #include <stdlib.h> /* getenv() */
29     #include <locale.h> /* setlocale() */
30     #include "main.h"
31    
32     /* Used for read/write to internal strings */
33     typedef struct {
34     char *str; /* Pointer to actual string in eggdrop */
35     int max; /* max length (negative: read-only var
36     * when protect is on) (0: read-only ALWAYS) */
37     int flags; /* 1 = directory */
38     } strinfo;
39    
40     typedef struct {
41     int *var;
42     int ro;
43     } intinfo;
44    
45    
46     extern time_t online_since;
47    
48     extern char origbotname[], botuser[], motdfile[], admin[], userfile[],
49 pseudo 1.2 firewall[], helpdir[], notify_new[], vhost[], moddir[],
50 simple 1.1 tempdir[], owner[], network[], botnetnick[], bannerfile[],
51     egg_version[], natip[], configfile[], logfile_suffix[], log_ts[],
52 pseudo 1.2 textdir[], pid_file[], listen_ip[];
53    
54 simple 1.1
55     extern int flood_telnet_thr, flood_telnet_time, shtime, share_greet,
56     require_p, keep_all_logs, allow_new_telnets, stealth_telnets,
57     use_telnet_banner, default_flags, conmask, switch_logfiles_at,
58     connect_timeout, firewallport, notify_users_at, flood_thr, tands,
59 pseudo 1.5 ignore_time, reserved_port_min, reserved_port_max, max_logs,
60     max_logsize, dcc_total, raw_log, identtimeout, dcc_sanitycheck,
61     dupwait_timeout, egg_numver, share_unlinks, protect_telnet,
62 pseudo 1.6 strict_host, resolve_timeout, default_uflags, userfile_perm,
63     cidr_support;
64 simple 1.1
65 pseudo 1.2 #ifdef IPV6
66     extern char vhost6[];
67     extern int pref_af;
68     #endif
69    
70 pseudo 1.4 #ifdef TLS
71     extern int tls_maxdepth, tls_vfybots, tls_vfyclients, tls_vfydcc, tls_auth;
72     extern char tls_capath[], tls_cafile[], tls_certfile[], tls_keyfile[],
73     tls_ciphers[];
74     #endif
75    
76 simple 1.1 extern struct dcc_t *dcc;
77     extern tcl_timer_t *timer, *utimer;
78    
79     Tcl_Interp *interp;
80    
81     int protect_readonly = 0; /* Enable read-only protection? */
82     char whois_fields[1025] = "";
83    
84     int dcc_flood_thr = 3;
85     int use_invites = 0;
86     int use_exempts = 0;
87     int force_expire = 0;
88     int remote_boots = 2;
89     int allow_dk_cmds = 1;
90     int must_be_owner = 1;
91     int quiet_reject = 1;
92     int copy_to_tmp = 1;
93     int max_socks = 100;
94     int quick_logs = 0;
95     int par_telnet_flood = 1;
96     int quiet_save = 0;
97     int strtot = 0;
98     int handlen = HANDLEN;
99     int utftot = 0;
100     int clientdata_stuff = 0;
101    
102     /* Prototypes for Tcl */
103     Tcl_Interp *Tcl_CreateInterp();
104    
105     int expmem_tcl()
106     {
107     return strtot + utftot + clientdata_stuff;
108     }
109    
110     static void botnet_change(char *new)
111     {
112     if (egg_strcasecmp(botnetnick, new)) {
113     /* Trying to change bot's nickname */
114     if (tands > 0) {
115     putlog(LOG_MISC, "*", "* Tried to change my botnet nick, but I'm still "
116     "linked to a botnet.");
117     putlog(LOG_MISC, "*", "* (Unlink and try again.)");
118     return;
119     } else {
120     if (botnetnick[0])
121     putlog(LOG_MISC, "*", "* IDENTITY CHANGE: %s -> %s", botnetnick, new);
122     strcpy(botnetnick, new);
123     }
124     }
125     }
126    
127    
128     /*
129     * Vars, traces, misc
130     */
131    
132     int init_misc();
133    
134     /* Used for read/write to integer couplets */
135     typedef struct {
136     int *left; /* left side of couplet */
137     int *right; /* right side */
138     } coupletinfo;
139    
140     /* FIXME: tcl_eggcouplet() should be redesigned so we can use
141     * TCL_TRACE_WRITES | TCL_TRACE_READS as the bit mask instead
142     * of 2 calls as is done in add_tcl_coups().
143     */
144     /* Read/write integer couplets (int1:int2) */
145     static char *tcl_eggcouplet(ClientData cdata, Tcl_Interp *irp,
146     EGG_CONST char *name1,
147     EGG_CONST char *name2, int flags)
148     {
149     char *s, s1[41];
150     coupletinfo *cp = (coupletinfo *) cdata;
151    
152     if (flags & (TCL_TRACE_READS | TCL_TRACE_UNSETS)) {
153     egg_snprintf(s1, sizeof s1, "%d:%d", *(cp->left), *(cp->right));
154     Tcl_SetVar2(interp, name1, name2, s1, TCL_GLOBAL_ONLY);
155     if (flags & TCL_TRACE_UNSETS)
156     Tcl_TraceVar(interp, name1,
157     TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
158     tcl_eggcouplet, cdata);
159     } else { /* writes */
160     s = (char *) Tcl_GetVar2(interp, name1, name2, 0);
161     if (s != NULL) {
162     int nr1, nr2;
163    
164     nr1 = nr2 = 0;
165    
166     if (strlen(s) > 40)
167     s[40] = 0;
168    
169     sscanf(s, "%d%*c%d", &nr1, &nr2);
170     *(cp->left) = nr1;
171     *(cp->right) = nr2;
172     }
173     }
174     return NULL;
175     }
176    
177     /* Read or write normal integer.
178     */
179     static char *tcl_eggint(ClientData cdata, Tcl_Interp *irp,
180     EGG_CONST char *name1,
181     EGG_CONST char *name2, int flags)
182     {
183     char *s, s1[40];
184     long l;
185     intinfo *ii = (intinfo *) cdata;
186    
187     if (flags & (TCL_TRACE_READS | TCL_TRACE_UNSETS)) {
188     /* Special cases */
189     if ((int *) ii->var == &conmask)
190     strcpy(s1, masktype(conmask));
191     else if ((int *) ii->var == &default_flags) {
192     struct flag_record fr = { FR_GLOBAL, 0, 0, 0, 0, 0 };
193     fr.global = default_flags;
194    
195     fr.udef_global = default_uflags;
196     build_flags(s1, &fr, 0);
197     } else if ((int *) ii->var == &userfile_perm) {
198     egg_snprintf(s1, sizeof s1, "0%o", userfile_perm);
199     } else
200     egg_snprintf(s1, sizeof s1, "%d", *(int *) ii->var);
201     Tcl_SetVar2(interp, name1, name2, s1, TCL_GLOBAL_ONLY);
202     if (flags & TCL_TRACE_UNSETS)
203     Tcl_TraceVar(interp, name1,
204     TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
205     tcl_eggint, cdata);
206     return NULL;
207     } else { /* Writes */
208     s = (char *) Tcl_GetVar2(interp, name1, name2, TCL_GLOBAL_ONLY);
209     if (s != NULL) {
210     if ((int *) ii->var == &conmask) {
211     if (s[0])
212     conmask = logmodes(s);
213     else
214     conmask = LOG_MODES | LOG_MISC | LOG_CMDS;
215     } else if ((int *) ii->var == &default_flags) {
216     struct flag_record fr = { FR_GLOBAL, 0, 0, 0, 0, 0 };
217    
218     break_down_flags(s, &fr, 0);
219     default_flags = sanity_check(fr.global); /* drummer */
220    
221     default_uflags = fr.udef_global;
222     } else if ((int *) ii->var == &userfile_perm) {
223     int p = oatoi(s);
224    
225     if (p <= 0)
226     return "invalid userfile permissions";
227     userfile_perm = p;
228     } else if ((ii->ro == 2) || ((ii->ro == 1) && protect_readonly))
229     return "read-only variable";
230     else {
231     if (Tcl_ExprLong(interp, s, &l) == TCL_ERROR)
232     return "variable must have integer value";
233     if ((int *) ii->var == &max_socks) {
234     if (l < threaddata()->MAXSOCKS)
235     return "you can't DECREASE max-socks below current usage";
236     max_socks = l;
237     } else if ((int *) ii->var == &max_logs) {
238     if (l < max_logs)
239     return "you can't DECREASE max-logs";
240     max_logs = l;
241     init_misc();
242     } else
243     *(ii->var) = (int) l;
244     }
245     }
246     return NULL;
247     }
248     }
249    
250     /* Read/write normal string variable
251     */
252     static char *tcl_eggstr(ClientData cdata, Tcl_Interp *irp,
253     EGG_CONST char *name1,
254     EGG_CONST char *name2, int flags)
255     {
256     char *s;
257     strinfo *st = (strinfo *) cdata;
258    
259     if (flags & (TCL_TRACE_READS | TCL_TRACE_UNSETS)) {
260     if ((st->str == firewall) && (firewall[0])) {
261     char s1[127];
262    
263     egg_snprintf(s1, sizeof s1, "%s:%d", firewall, firewallport);
264     Tcl_SetVar2(interp, name1, name2, s1, TCL_GLOBAL_ONLY);
265     } else
266     Tcl_SetVar2(interp, name1, name2, st->str, TCL_GLOBAL_ONLY);
267     if (flags & TCL_TRACE_UNSETS) {
268     Tcl_TraceVar(interp, name1, TCL_TRACE_READS | TCL_TRACE_WRITES |
269     TCL_TRACE_UNSETS, tcl_eggstr, cdata);
270     if ((st->max <= 0) && (protect_readonly || (st->max == 0)))
271     return "read-only variable"; /* it won't return the error... */
272     }
273     return NULL;
274     } else { /* writes */
275     if ((st->max <= 0) && (protect_readonly || (st->max == 0))) {
276     Tcl_SetVar2(interp, name1, name2, st->str, TCL_GLOBAL_ONLY);
277     return "read-only variable";
278     }
279     s = (char *) Tcl_GetVar2(interp, name1, name2, 0);
280     if (s != NULL) {
281     if (strlen(s) > abs(st->max))
282     s[abs(st->max)] = 0;
283     if (st->str == botnetnick)
284     botnet_change(s);
285     else if (st->str == logfile_suffix)
286     logsuffix_change(s);
287     else if (st->str == firewall) {
288     splitc(firewall, s, ':');
289     if (!firewall[0])
290     strcpy(firewall, s);
291     else
292     firewallport = atoi(s);
293     } else
294     strcpy(st->str, s);
295     if ((st->flags) && (s[0])) {
296     if (st->str[strlen(st->str) - 1] != '/')
297     strcat(st->str, "/");
298     }
299     }
300     return NULL;
301     }
302     }
303    
304     /* Add/remove tcl commands
305     */
306    
307     void add_tcl_commands(tcl_cmds *table)
308     {
309     int i;
310    
311     for (i = 0; table[i].name; i++)
312     Tcl_CreateCommand(interp, table[i].name, table[i].func, NULL, NULL);
313     }
314    
315     void add_cd_tcl_cmds(cd_tcl_cmd *table)
316     {
317     while (table->name) {
318     Tcl_CreateCommand(interp, table->name, table->callback,
319     (ClientData) table->cdata, NULL);
320     table++;
321     }
322     }
323    
324     void rem_tcl_commands(tcl_cmds *table)
325     {
326     int i;
327    
328     for (i = 0; table[i].name; i++)
329     Tcl_DeleteCommand(interp, table[i].name);
330     }
331    
332     void rem_cd_tcl_cmds(cd_tcl_cmd *table)
333     {
334     while (table->name) {
335     Tcl_DeleteCommand(interp, table->name);
336     table++;
337     }
338     }
339    
340     void add_tcl_objcommands(tcl_cmds *table)
341     {
342     int i;
343    
344     for (i = 0; table[i].name; i++)
345     Tcl_CreateObjCommand(interp, table[i].name, table[i].func, (ClientData) 0,
346     NULL);
347     }
348    
349     /* Get the current tcl result string. */
350     const char *tcl_resultstring()
351     {
352     const char *result;
353     result = Tcl_GetStringResult(interp);
354     return result;
355     }
356    
357     int tcl_resultempty() {
358     const char *result;
359     result = tcl_resultstring();
360     return (result && result[0]) ? 0 : 1;
361     }
362    
363     /* Get the current tcl result as int. replaces atoi(interp->result) */
364     int tcl_resultint()
365     {
366     int result;
367     if (Tcl_GetIntFromObj(NULL, Tcl_GetObjResult(interp), &result) != TCL_OK)
368     result = 0;
369     return result;
370     }
371    
372     static tcl_strings def_tcl_strings[] = {
373     {"botnet-nick", botnetnick, HANDLEN, 0},
374     {"userfile", userfile, 120, STR_PROTECT},
375     {"motd", motdfile, 120, STR_PROTECT},
376     {"admin", admin, 120, 0},
377     {"help-path", helpdir, 120, STR_DIR | STR_PROTECT},
378     {"temp-path", tempdir, 120, STR_DIR | STR_PROTECT},
379     {"text-path", textdir, 120, STR_DIR | STR_PROTECT},
380 pseudo 1.4 #ifdef TLS
381     {"ssl-capath", tls_capath, 120, STR_DIR | STR_PROTECT},
382     {"ssl-cafile", tls_cafile, 120, STR_PROTECT},
383     {"ssl-ciphers", tls_ciphers, 120, STR_PROTECT},
384     {"ssl-privatekey", tls_keyfile, 120, STR_PROTECT},
385     {"ssl-certificate", tls_certfile, 120, STR_PROTECT},
386     #endif
387 simple 1.1 #ifndef STATIC
388     {"mod-path", moddir, 120, STR_DIR | STR_PROTECT},
389     #endif
390     {"notify-newusers", notify_new, 120, 0},
391     {"owner", owner, 120, STR_PROTECT},
392 pseudo 1.9 {"vhost4", vhost, 120, 0},
393 pseudo 1.2 #ifdef IPV6
394     {"vhost6", vhost6, 120, 0},
395     #endif
396     {"listen-addr", listen_ip, 120, 0},
397 simple 1.1 {"network", network, 40, 0},
398     {"whois-fields", whois_fields, 1024, 0},
399     {"nat-ip", natip, 120, 0},
400     {"username", botuser, 10, 0},
401     {"version", egg_version, 0, 0},
402     {"firewall", firewall, 120, 0},
403     {"config", configfile, 0, 0},
404     {"telnet-banner", bannerfile, 120, STR_PROTECT},
405     {"logfile-suffix", logfile_suffix, 20, 0},
406     {"timestamp-format",log_ts, 32, 0},
407     {"pidfile", pid_file, 120, STR_PROTECT},
408     {NULL, NULL, 0, 0}
409     };
410    
411     static tcl_ints def_tcl_ints[] = {
412     {"ignore-time", &ignore_time, 0},
413     {"handlen", &handlen, 2},
414 pseudo 1.4 #ifdef TLS
415     {"ssl-chain-depth", &tls_maxdepth, 0},
416     {"ssl-verify-dcc", &tls_vfydcc, 0},
417     {"ssl-verify-clients", &tls_vfyclients, 0},
418     {"ssl-verify-bots", &tls_vfybots, 0},
419     {"ssl-cert-auth", &tls_auth, 0},
420     #endif
421 simple 1.1 {"dcc-flood-thr", &dcc_flood_thr, 0},
422     {"hourly-updates", &notify_users_at, 0},
423     {"switch-logfiles-at", &switch_logfiles_at, 0},
424     {"connect-timeout", &connect_timeout, 0},
425     {"reserved-port", &reserved_port_min, 0},
426     {"require-p", &require_p, 0},
427     {"keep-all-logs", &keep_all_logs, 0},
428     {"open-telnets", &allow_new_telnets, 0},
429     {"stealth-telnets", &stealth_telnets, 0},
430     {"use-telnet-banner", &use_telnet_banner, 0},
431     {"uptime", (int *) &online_since, 2},
432     {"console", &conmask, 0},
433     {"default-flags", &default_flags, 0},
434     {"numversion", &egg_numver, 2},
435     {"remote-boots", &remote_boots, 1},
436     {"max-socks", &max_socks, 0},
437     {"max-logs", &max_logs, 0},
438     {"max-logsize", &max_logsize, 0},
439     {"quick-logs", &quick_logs, 0},
440     {"raw-log", &raw_log, 1},
441     {"protect-telnet", &protect_telnet, 0},
442     {"dcc-sanitycheck", &dcc_sanitycheck, 0},
443     {"ident-timeout", &identtimeout, 0},
444     {"share-unlinks", &share_unlinks, 0},
445     {"log-time", &shtime, 0},
446     {"allow-dk-cmds", &allow_dk_cmds, 0},
447     {"resolve-timeout", &resolve_timeout, 0},
448     {"must-be-owner", &must_be_owner, 1},
449     {"paranoid-telnet-flood", &par_telnet_flood, 0},
450     {"use-exempts", &use_exempts, 0},
451     {"use-invites", &use_invites, 0},
452     {"quiet-save", &quiet_save, 0},
453     {"force-expire", &force_expire, 0},
454     {"dupwait-timeout", &dupwait_timeout, 0},
455     {"strict-host", &strict_host, 0},
456     {"userfile-perm", &userfile_perm, 0},
457     {"copy-to-tmp", &copy_to_tmp, 0},
458     {"quiet-reject", &quiet_reject, 0},
459     {"cidr-support", &cidr_support, 0},
460 pseudo 1.2 #ifdef IPV6
461 pseudo 1.3 {"prefer-ipv6", &pref_af, 0},
462 pseudo 1.2 #endif
463 simple 1.1 {NULL, NULL, 0}
464     };
465    
466     static tcl_coups def_tcl_coups[] = {
467     {"telnet-flood", &flood_telnet_thr, &flood_telnet_time},
468     {"reserved-portrange", &reserved_port_min, &reserved_port_max},
469     {NULL, NULL, NULL}
470     };
471    
472     /* Set up Tcl variables that will hook into eggdrop internal vars via
473     * trace callbacks.
474     */
475     static void init_traces()
476     {
477     add_tcl_coups(def_tcl_coups);
478     add_tcl_strings(def_tcl_strings);
479     add_tcl_ints(def_tcl_ints);
480     }
481    
482     void kill_tcl()
483     {
484     rem_tcl_coups(def_tcl_coups);
485     rem_tcl_strings(def_tcl_strings);
486     rem_tcl_ints(def_tcl_ints);
487     kill_bind();
488     Tcl_DeleteInterp(interp);
489     }
490    
491     extern tcl_cmds tcluser_cmds[], tcldcc_cmds[], tclmisc_cmds[],
492     tclmisc_objcmds[], tcldns_cmds[];
493 pseudo 1.4 #ifdef TLS
494     extern tcl_cmds tcltls_cmds[];
495     #endif
496 simple 1.1
497     #ifdef REPLACE_NOTIFIER
498     /* The tickle_*() functions replace the Tcl Notifier
499     * The tickle_*() functions can be called by Tcl threads
500     */
501     void tickle_SetTimer (TCL_CONST86 Tcl_Time *timePtr)
502     {
503     struct threaddata *td = threaddata();
504     /* we can block 1 second maximum, because we have SECONDLY events */
505     if (!timePtr || timePtr->sec > 1 || (timePtr->sec == 1 && timePtr->usec > 0)) {
506     td->blocktime.tv_sec = 1;
507     td->blocktime.tv_usec = 0;
508     } else {
509     td->blocktime.tv_sec = timePtr->sec;
510     td->blocktime.tv_usec = timePtr->usec;
511     }
512     }
513    
514     int tickle_WaitForEvent (TCL_CONST86 Tcl_Time *timePtr)
515     {
516     struct threaddata *td = threaddata();
517    
518     tickle_SetTimer(timePtr);
519     return (*td->mainloopfunc)(0);
520     }
521    
522     void tickle_CreateFileHandler(int fd, int mask, Tcl_FileProc *proc, ClientData cd)
523     {
524     alloctclsock(fd, mask, proc, cd);
525     }
526    
527     void tickle_DeleteFileHandler(int fd)
528     {
529     killtclsock(fd);
530     }
531    
532     void tickle_FinalizeNotifier(ClientData cd)
533     {
534     struct threaddata *td = threaddata();
535     if (td->socklist)
536     nfree(td->socklist);
537     }
538    
539     ClientData tickle_InitNotifier()
540     {
541     static int ismainthread = 1;
542     init_threaddata(ismainthread);
543     if (ismainthread)
544     ismainthread = 0;
545     return NULL;
546     }
547    
548     int tclthreadmainloop(int zero)
549     {
550     int i;
551     i = sockread(NULL, NULL, threaddata()->socklist, threaddata()->MAXSOCKS, 1);
552 thommey 1.10 return (i == -5);
553 simple 1.1 }
554    
555     struct threaddata *threaddata()
556     {
557     static Tcl_ThreadDataKey tdkey;
558     struct threaddata *td = Tcl_GetThreadData(&tdkey, sizeof(struct threaddata));
559     return td;
560     }
561    
562     #else /* REPLACE_NOTIFIER */
563    
564     int tclthreadmainloop() { return 0; }
565    
566     struct threaddata *threaddata()
567     {
568     static struct threaddata tsd;
569     return &tsd;
570     }
571    
572     #endif /* REPLACE_NOTIFIER */
573    
574     int init_threaddata(int mainthread)
575     {
576     struct threaddata *td = threaddata();
577 thommey 1.12 /* Nested evaluation (vwait/update) of the event loop only
578     * processes Tcl events (after/fileevent) for now. Using
579     * eggdrops mainloop() requires caution regarding reentrance.
580     * (check_tcl_* -> Tcl_Eval() -> mainloop() -> check_tcl_* etc.)
581     */
582     /* td->mainloopfunc = mainthread ? mainloop : tclthreadmainloop; */
583     td->mainloopfunc = tclthreadmainloop;
584 simple 1.1 td->socklist = NULL;
585     td->mainthread = mainthread;
586     td->blocktime.tv_sec = 1;
587     td->blocktime.tv_usec = 0;
588     td->MAXSOCKS = 0;
589     increase_socks_max();
590     return 0;
591     }
592    
593     /* Not going through Tcl's crazy main() system (what on earth was he
594     * smoking?!) so we gotta initialize the Tcl interpreter
595     */
596     void init_tcl(int argc, char **argv)
597     {
598     #ifdef REPLACE_NOTIFIER
599     Tcl_NotifierProcs notifierprocs;
600     #endif /* REPLACE_NOTIFIER */
601    
602     const char *encoding;
603 thommey 1.13 int i, j;
604     char *langEnv, pver[1024] = "";
605 simple 1.1
606     #ifdef REPLACE_NOTIFIER
607     egg_bzero(&notifierprocs, sizeof(notifierprocs));
608     notifierprocs.initNotifierProc = tickle_InitNotifier;
609     notifierprocs.createFileHandlerProc = tickle_CreateFileHandler;
610     notifierprocs.deleteFileHandlerProc = tickle_DeleteFileHandler;
611     notifierprocs.setTimerProc = tickle_SetTimer;
612     notifierprocs.waitForEventProc = tickle_WaitForEvent;
613     notifierprocs.finalizeNotifierProc = tickle_FinalizeNotifier;
614    
615     Tcl_SetNotifier(&notifierprocs);
616     #endif /* REPLACE_NOTIFIER */
617    
618     /* This must be done *BEFORE* Tcl_SetSystemEncoding(),
619     * or Tcl_SetSystemEncoding() will cause a segfault.
620     */
621     /* This is used for 'info nameofexecutable'.
622     * The filename in argv[0] must exist in a directory listed in
623     * the environment variable PATH for it to register anything.
624     */
625     Tcl_FindExecutable(argv[0]);
626    
627     /* Initialize the interpreter */
628     interp = Tcl_CreateInterp();
629    
630     #ifdef DEBUG_MEM
631     /* Initialize Tcl's memory debugging if we want it */
632     Tcl_InitMemory(interp);
633     #endif
634    
635     /* Set Tcl variable tcl_interactive to 0 */
636     Tcl_SetVar(interp, "tcl_interactive", "0", TCL_GLOBAL_ONLY);
637    
638     /* Setup script library facility */
639     Tcl_Init(interp);
640     Tcl_SetServiceMode(TCL_SERVICE_ALL);
641    
642     /* Code based on Tcl's TclpSetInitialEncodings() */
643     /* Determine the current encoding from the LC_* or LANG environment
644     * variables.
645     */
646     langEnv = getenv("LC_ALL");
647     if (langEnv == NULL || langEnv[0] == '\0') {
648     langEnv = getenv("LC_CTYPE");
649     }
650     if (langEnv == NULL || langEnv[0] == '\0') {
651     langEnv = getenv("LANG");
652     }
653     if (langEnv == NULL || langEnv[0] == '\0') {
654     langEnv = NULL;
655     }
656    
657     encoding = NULL;
658     if (langEnv != NULL) {
659     for (i = 0; localeTable[i].lang != NULL; i++)
660     if (strcmp(localeTable[i].lang, langEnv) == 0) {
661     encoding = localeTable[i].encoding;
662     break;
663     }
664    
665     /* There was no mapping in the locale table. If there is an
666     * encoding subfield, we can try to guess from that.
667     */
668     if (encoding == NULL) {
669     char *p;
670    
671     for (p = langEnv; *p != '\0'; p++) {
672     if (*p == '.') {
673     p++;
674     break;
675     }
676     }
677     if (*p != '\0') {
678     Tcl_DString ds;
679    
680     Tcl_DStringInit(&ds);
681     Tcl_DStringAppend(&ds, p, -1);
682    
683     encoding = Tcl_DStringValue(&ds);
684     Tcl_UtfToLower(Tcl_DStringValue(&ds));
685     if (Tcl_SetSystemEncoding(NULL, encoding) == TCL_OK) {
686     Tcl_DStringFree(&ds);
687     goto resetPath;
688     }
689     Tcl_DStringFree(&ds);
690     encoding = NULL;
691     }
692     }
693     }
694    
695     if (encoding == NULL) {
696     encoding = "iso8859-1";
697     }
698    
699     Tcl_SetSystemEncoding(NULL, encoding);
700    
701     resetPath:
702    
703     /* Initialize the C library's locale subsystem. */
704     setlocale(LC_CTYPE, "");
705    
706     /* In case the initial locale is not "C", ensure that the numeric
707     * processing is done in "C" locale regardless. */
708     setlocale(LC_NUMERIC, "C");
709    
710     /* Keep the iso8859-1 encoding preloaded. The IO package uses it for
711     * gets on a binary channel. */
712     Tcl_GetEncoding(NULL, "iso8859-1");
713    
714     /* Add eggdrop to Tcl's package list */
715     for (j = 0; j <= strlen(egg_version); j++) {
716     if ((egg_version[j] == ' ') || (egg_version[j] == '+'))
717     break;
718     pver[strlen(pver)] = egg_version[j];
719     }
720     Tcl_PkgProvide(interp, "eggdrop", pver);
721    
722     /* Initialize binds and traces */
723     init_bind();
724     init_traces();
725    
726     /* Add new commands */
727     add_tcl_commands(tcluser_cmds);
728     add_tcl_commands(tcldcc_cmds);
729     add_tcl_commands(tclmisc_cmds);
730     add_tcl_objcommands(tclmisc_objcmds);
731     add_tcl_commands(tcldns_cmds);
732 pseudo 1.4 #ifdef TLS
733     add_tcl_commands(tcltls_cmds);
734     #endif
735 simple 1.1 }
736    
737     void do_tcl(char *whatzit, char *script)
738     {
739     int code;
740     char *result;
741     Tcl_DString dstr;
742    
743     code = Tcl_Eval(interp, script);
744    
745     /* properly convert string to system encoding. */
746     Tcl_DStringInit(&dstr);
747     Tcl_UtfToExternalDString(NULL, tcl_resultstring(), -1, &dstr);
748     result = Tcl_DStringValue(&dstr);
749    
750     if (code != TCL_OK) {
751     putlog(LOG_MISC, "*", "Tcl error in script for '%s':", whatzit);
752     putlog(LOG_MISC, "*", "%s", result);
753 thommey 1.11 Tcl_BackgroundError(interp);
754 simple 1.1 }
755    
756     Tcl_DStringFree(&dstr);
757     }
758    
759     /* Interpret tcl file fname.
760     *
761     * returns: 1 - if everything was okay
762     */
763     int readtclprog(char *fname)
764     {
765     int code;
766     EGG_CONST char *result;
767     Tcl_DString dstr;
768    
769     if (!file_readable(fname))
770     return 0;
771    
772     code = Tcl_EvalFile(interp, fname);
773     result = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
774    
775     /* properly convert string to system encoding. */
776     Tcl_DStringInit(&dstr);
777     Tcl_UtfToExternalDString(NULL, result, -1, &dstr);
778     result = Tcl_DStringValue(&dstr);
779    
780     if (code != TCL_OK) {
781     putlog(LOG_MISC, "*", "Tcl error in file '%s':", fname);
782     putlog(LOG_MISC, "*", "%s", result);
783 thommey 1.11 Tcl_BackgroundError(interp);
784 simple 1.1 code = 0; /* JJM: refactored to remove premature return */
785     } else {
786     /* Refresh internal variables */
787     code = 1;
788     }
789    
790     Tcl_DStringFree(&dstr);
791    
792     return code;
793     }
794    
795     void add_tcl_strings(tcl_strings *list)
796     {
797     int i;
798     strinfo *st;
799     int tmp;
800    
801     for (i = 0; list[i].name; i++) {
802     st = nmalloc(sizeof *st);
803     strtot += sizeof(strinfo);
804     st->max = list[i].length - (list[i].flags & STR_DIR);
805     if (list[i].flags & STR_PROTECT)
806     st->max = -st->max;
807     st->str = list[i].buf;
808     st->flags = (list[i].flags & STR_DIR);
809     tmp = protect_readonly;
810     protect_readonly = 0;
811     tcl_eggstr((ClientData) st, interp, list[i].name, NULL, TCL_TRACE_WRITES);
812     protect_readonly = tmp;
813     tcl_eggstr((ClientData) st, interp, list[i].name, NULL, TCL_TRACE_READS);
814     Tcl_TraceVar(interp, list[i].name, TCL_TRACE_READS | TCL_TRACE_WRITES |
815     TCL_TRACE_UNSETS, tcl_eggstr, (ClientData) st);
816     }
817     }
818    
819     void rem_tcl_strings(tcl_strings *list)
820     {
821     int i, f;
822     strinfo *st;
823    
824     f = TCL_GLOBAL_ONLY | TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS;
825     for (i = 0; list[i].name; i++) {
826     st = (strinfo *) Tcl_VarTraceInfo(interp, list[i].name, f, tcl_eggstr,
827     NULL);
828     Tcl_UntraceVar(interp, list[i].name, f, tcl_eggstr, st);
829     if (st != NULL) {
830     strtot -= sizeof(strinfo);
831     nfree(st);
832     }
833     }
834     }
835    
836     void add_tcl_ints(tcl_ints *list)
837     {
838     int i, tmp;
839     intinfo *ii;
840    
841     for (i = 0; list[i].name; i++) {
842     ii = nmalloc(sizeof *ii);
843     strtot += sizeof(intinfo);
844     ii->var = list[i].val;
845     ii->ro = list[i].readonly;
846     tmp = protect_readonly;
847     protect_readonly = 0;
848     tcl_eggint((ClientData) ii, interp, list[i].name, NULL, TCL_TRACE_WRITES);
849     protect_readonly = tmp;
850     tcl_eggint((ClientData) ii, interp, list[i].name, NULL, TCL_TRACE_READS);
851     Tcl_TraceVar(interp, list[i].name,
852     TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
853     tcl_eggint, (ClientData) ii);
854     }
855    
856     }
857    
858     void rem_tcl_ints(tcl_ints *list)
859     {
860     int i, f;
861     intinfo *ii;
862    
863     f = TCL_GLOBAL_ONLY | TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS;
864     for (i = 0; list[i].name; i++) {
865     ii = (intinfo *) Tcl_VarTraceInfo(interp, list[i].name, f, tcl_eggint,
866     NULL);
867     Tcl_UntraceVar(interp, list[i].name, f, tcl_eggint, (ClientData) ii);
868     if (ii) {
869     strtot -= sizeof(intinfo);
870     nfree(ii);
871     }
872     }
873     }
874    
875     /* Allocate couplet space for tracing couplets
876     */
877     void add_tcl_coups(tcl_coups *list)
878     {
879     coupletinfo *cp;
880     int i;
881    
882     for (i = 0; list[i].name; i++) {
883     cp = nmalloc(sizeof *cp);
884     strtot += sizeof(coupletinfo);
885     cp->left = list[i].lptr;
886     cp->right = list[i].rptr;
887     tcl_eggcouplet((ClientData) cp, interp, list[i].name, NULL,
888     TCL_TRACE_WRITES);
889     tcl_eggcouplet((ClientData) cp, interp, list[i].name, NULL,
890     TCL_TRACE_READS);
891     Tcl_TraceVar(interp, list[i].name,
892     TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS,
893     tcl_eggcouplet, (ClientData) cp);
894     }
895     }
896    
897     void rem_tcl_coups(tcl_coups *list)
898     {
899     int i, f;
900     coupletinfo *cp;
901    
902     f = TCL_GLOBAL_ONLY | TCL_TRACE_READS | TCL_TRACE_WRITES | TCL_TRACE_UNSETS;
903     for (i = 0; list[i].name; i++) {
904     cp = (coupletinfo *) Tcl_VarTraceInfo(interp, list[i].name, f,
905     tcl_eggcouplet, NULL);
906     strtot -= sizeof(coupletinfo);
907     Tcl_UntraceVar(interp, list[i].name, f, tcl_eggcouplet, (ClientData) cp);
908     nfree(cp);
909     }
910     }
911    
912     /* Check if the Tcl library supports threads
913     */
914     int tcl_threaded()
915     {
916     #ifdef HAVE_TCL_GETCURRENTTHREAD
917     if (Tcl_GetCurrentThread() != (Tcl_ThreadId)0)
918     return 1;
919     #endif
920    
921     return 0;
922     }
923    
924     /* Check if we need to fork before initializing Tcl
925     */
926     int fork_before_tcl()
927     {
928     #ifndef REPLACE_NOTIFIER
929     return tcl_threaded();
930     #endif
931     return 0;
932     }

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