/[cvs]/eggdrop1.9/src/dccutil.c
ViewVC logotype

Annotation of /eggdrop1.9/src/dccutil.c

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph


Revision 1.17 - (hide annotations) (download) (as text)
Sun Jan 30 19:26:20 2000 UTC (19 years, 8 months ago) by fabian
Branch: MAIN
CVS Tags: eggdrop105020
Changes since 1.16: +47 -47 lines
File MIME type: text/x-chdr
cleanup3 patch

1 fabian 1.10 /*
2 segfault 1.1 * dccutil.c -- handles:
3 fabian 1.10 * lots of little functions to send formatted text to
4     * varying types of connections
5     * '.who', '.whom', and '.dccstat' code
6     * memory management for dcc structures
7     * timeout checking for dcc connections
8     *
9 fabian 1.17 * $Id: dccutil.c,v 1.16 2000/01/17 22:36:06 fabian Exp $
10 segfault 1.1 */
11 fabian 1.10 /*
12     * Copyright (C) 1997 Robey Pointer
13 fabian 1.16 * Copyright (C) 1999, 2000 Eggheads
14 fabian 1.10 *
15     * This program is free software; you can redistribute it and/or
16     * modify it under the terms of the GNU General Public License
17     * as published by the Free Software Foundation; either version 2
18     * of the License, or (at your option) any later version.
19     *
20     * This program is distributed in the hope that it will be useful,
21     * but WITHOUT ANY WARRANTY; without even the implied warranty of
22     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23     * GNU General Public License for more details.
24     *
25     * You should have received a copy of the GNU General Public License
26     * along with this program; if not, write to the Free Software
27     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 segfault 1.1 */
29    
30 fabian 1.17 #include <sys/stat.h>
31 segfault 1.1 #include "main.h"
32     #include <errno.h>
33     #include "chan.h"
34     #include "modules.h"
35     #include "tandem.h"
36    
37 fabian 1.17 extern struct dcc_t *dcc;
38     extern int dcc_total, max_dcc, dcc_flood_thr, backgrd, MAXSOCKS;
39     extern char botnetnick[], spaces[], version[];
40     extern time_t now;
41     extern sock_list *socklist;
42    
43     char motdfile[121] = "text/motd"; /* File where the motd is stored */
44     int connect_timeout = 15; /* How long to wait before a telnet
45     connection times out */
46     int reserved_port = 0;
47 segfault 1.1
48    
49     void init_dcc_max()
50     {
51     int osock = MAXSOCKS;
52    
53     if (max_dcc < 1)
54     max_dcc = 1;
55     if (dcc)
56     dcc = nrealloc(dcc, sizeof(struct dcc_t) * max_dcc);
57     else
58     dcc = nmalloc(sizeof(struct dcc_t) * max_dcc);
59    
60     MAXSOCKS = max_dcc + 10;
61     if (socklist)
62     socklist = (sock_list *) nrealloc((void *) socklist,
63     sizeof(sock_list) * MAXSOCKS);
64     else
65     socklist = (sock_list *) nmalloc(sizeof(sock_list) * MAXSOCKS);
66     for (; osock < MAXSOCKS; osock++)
67     socklist[osock].flags = SOCK_UNUSED;
68     }
69    
70     int expmem_dccutil()
71     {
72     int tot, i;
73    
74 fabian 1.9 Context;
75 segfault 1.1 tot = sizeof(struct dcc_t) * max_dcc + sizeof(sock_list) * MAXSOCKS;
76    
77     for (i = 0; i < dcc_total; i++) {
78     if (dcc[i].type && dcc[i].type->expmem)
79     tot += dcc[i].type->expmem(dcc[i].u.other);
80     }
81     return tot;
82     }
83    
84     static char SBUF[1024];
85    
86 fabian 1.17 /* Replace \n with \r\n */
87 segfault 1.1 char *add_cr(char *buf)
88     {
89     static char WBUF[1024];
90     char *p, *q;
91    
92     for (p = buf, q = WBUF; *p; p++, q++) {
93     if (*p == '\n')
94     *q++ = '\r';
95     *q = *p;
96     }
97     *q = *p;
98     return WBUF;
99     }
100    
101     extern void (*qserver) (int, char *, int);
102 fabian 1.7
103 fabian 1.5 void dprintf EGG_VARARGS_DEF(int, arg1)
104 segfault 1.1 {
105     char *format;
106     int idx, len;
107 fabian 1.17 va_list va;
108 segfault 1.1
109 fabian 1.5 idx = EGG_VARARGS_START(int, arg1, va);
110 segfault 1.1 format = va_arg(va, char *);
111     #ifdef HAVE_VSNPRINTF
112     if ((len = vsnprintf(SBUF, 1023, format, va)) < 0)
113     SBUF[len = 1023] = 0;
114     #else
115     len = vsprintf(SBUF, format, va);
116     #endif
117     va_end(va);
118     if (idx < 0) {
119     tputs(-idx, SBUF, len);
120     } else if (idx > 0x7FF0) {
121     switch (idx) {
122     case DP_LOG:
123     putlog(LOG_MISC, "*", "%s", SBUF);
124     break;
125     case DP_STDOUT:
126     tputs(STDOUT, SBUF, len);
127     break;
128     case DP_STDERR:
129     tputs(STDERR, SBUF, len);
130     break;
131     case DP_SERVER:
132     case DP_HELP:
133     case DP_MODE:
134 fabian 1.8 case DP_MODE_NEXT:
135     case DP_SERVER_NEXT:
136     case DP_HELP_NEXT:
137 segfault 1.1 qserver(idx, SBUF, len);
138     break;
139     }
140     return;
141     } else {
142 fabian 1.17 if (len > 500) { /* Truncate to fit */
143 segfault 1.1 SBUF[500] = 0;
144     strcat(SBUF, "\n");
145     len = 501;
146     }
147     if (dcc[idx].type && ((long) (dcc[idx].type->output) == 1)) {
148     char *p = add_cr(SBUF);
149    
150     tputs(dcc[idx].sock, p, strlen(p));
151     } else if (dcc[idx].type && dcc[idx].type->output) {
152     dcc[idx].type->output(idx, SBUF, dcc[idx].u.other);
153     } else
154     tputs(dcc[idx].sock, SBUF, len);
155     }
156     }
157    
158 fabian 1.5 void chatout EGG_VARARGS_DEF(char *, arg1)
159 segfault 1.1 {
160     int i;
161     char *format;
162     char s[601];
163 fabian 1.17 va_list va;
164 segfault 1.1
165 fabian 1.5 format = EGG_VARARGS_START(char *, arg1, va);
166 segfault 1.1 #ifdef HAVE_VSNPRINTF
167     if (vsnprintf(s, 511, format, va) < 0)
168     s[511] = 0;
169     #else
170     vsprintf(s, format, va);
171     #endif
172     for (i = 0; i < dcc_total; i++)
173     if (dcc[i].type == &DCC_CHAT)
174     if (dcc[i].u.chat->channel >= 0)
175     dprintf(i, "%s", s);
176     va_end(va);
177     }
178    
179 fabian 1.17 /* Print to all on this channel but one.
180     */
181 fabian 1.5 void chanout_but EGG_VARARGS_DEF(int, arg1)
182 segfault 1.1 {
183     int i, x, chan;
184     char *format;
185     char s[601];
186 fabian 1.17 va_list va;
187 segfault 1.1
188 fabian 1.5 x = EGG_VARARGS_START(int, arg1, va);
189 segfault 1.1 chan = va_arg(va, int);
190     format = va_arg(va, char *);
191     #ifdef HAVE_VSNPRINTF
192     if (vsnprintf(s, 511, format, va) < 0)
193     s[511] = 0;
194     #else
195     vsprintf(s, format, va);
196     #endif
197     for (i = 0; i < dcc_total; i++)
198     if ((dcc[i].type == &DCC_CHAT) && (i != x))
199     if (dcc[i].u.chat->channel == chan)
200     dprintf(i, "%s", s);
201     va_end(va);
202     }
203    
204     void dcc_chatter(int idx)
205     {
206     int i, j;
207 fabian 1.17 struct flag_record fr = {FR_GLOBAL | FR_CHAN | FR_ANYWH, 0, 0, 0, 0, 0};
208 segfault 1.1
209     get_user_flagrec(dcc[idx].user, &fr, NULL);
210     dprintf(idx, "Connected to %s, running %s\n", botnetnick, version);
211     show_motd(idx);
212     dprintf(idx, "Commands start with '.' (like '.quit' or '.help')\n");
213     dprintf(idx, "Everything else goes out to the party line.\n\n");
214     i = dcc[idx].u.chat->channel;
215     dcc[idx].u.chat->channel = 234567;
216     j = dcc[idx].sock;
217     strcpy(dcc[idx].u.chat->con_chan, "***");
218     check_tcl_chon(dcc[idx].nick, dcc[idx].sock);
219 fabian 1.17 /* Still there? */
220 segfault 1.1 if ((idx >= dcc_total) || (dcc[idx].sock != j))
221 fabian 1.17 return; /* Nope */
222     /* Tcl script may have taken control */
223 segfault 1.1 if (dcc[idx].type == &DCC_CHAT) {
224     if (!strcmp(dcc[idx].u.chat->con_chan, "***"))
225     strcpy(dcc[idx].u.chat->con_chan, "*");
226     if (dcc[idx].u.chat->channel == 234567) {
227 fabian 1.17 /* If the chat channel has already been altered it's *highly*
228 segfault 1.1 * probably join/part messages have been broadcast everywhere,
229 fabian 1.17 * so dont bother sending them
230     */
231 segfault 1.1 if (i == -2)
232     i = 0;
233     dcc[idx].u.chat->channel = i;
234     if (dcc[idx].u.chat->channel >= 0) {
235 fabian 1.9 Context;
236 segfault 1.1 if (dcc[idx].u.chat->channel < 100000) {
237     botnet_send_join_idx(idx, -1);
238     }
239     }
240     check_tcl_chjn(botnetnick, dcc[idx].nick, dcc[idx].u.chat->channel,
241     geticon(idx), dcc[idx].sock, dcc[idx].host);
242     }
243 fabian 1.17 /* But *do* bother with sending it locally */
244 segfault 1.1 if (dcc[idx].u.chat->channel == 0) {
245     chanout_but(-1, 0, "*** %s joined the party line.\n", dcc[idx].nick);
246     } else if (dcc[idx].u.chat->channel > 0) {
247     chanout_but(-1, dcc[idx].u.chat->channel,
248     "*** %s joined the channel.\n", dcc[idx].nick);
249     }
250     }
251     }
252    
253 fabian 1.14 /* Mark an entry as lost and deconstruct it's contents. It will be securely
254     * removed from the dcc list in the main loop.
255     */
256 segfault 1.1 void lostdcc(int n)
257     {
258 fabian 1.14 if (dcc[n].type && dcc[n].type->kill)
259     dcc[n].type->kill(n, dcc[n].u.other);
260     else if (dcc[n].u.other)
261     nfree(dcc[n].u.other);
262     bzero(&dcc[n], sizeof(struct dcc_t));
263    
264     dcc[n].sock = (-1);
265 fabian 1.11 dcc[n].type = &DCC_LOST;
266     }
267    
268     /* Remove entry from dcc list. Think twice before using this function,
269     * because it invalidates any variables that point to a specific dcc
270     * entry!
271 fabian 1.17 *
272     * Note: The entry will be deconstructed if it was not deconstructed
273     * already. This case should normally not occur.
274 fabian 1.11 */
275     void removedcc(int n)
276     {
277 segfault 1.1 if (dcc[n].type && dcc[n].type->kill)
278     dcc[n].type->kill(n, dcc[n].u.other);
279     else if (dcc[n].u.other)
280     nfree(dcc[n].u.other);
281     dcc_total--;
282     if (n < dcc_total)
283     my_memcpy((char *) &dcc[n], (char *) &dcc[dcc_total],
284     sizeof(struct dcc_t));
285     else
286     bzero(&dcc[n], sizeof(struct dcc_t)); /* drummer */
287 fabian 1.12 }
288    
289     /* Clean up sockets that were just left for dead.
290     */
291     void dcc_remove_lost(void)
292     {
293     int i;
294    
295     Context;
296     for (i = 0; i < dcc_total; i++) {
297     if (dcc[i].type == &DCC_LOST) {
298 fabian 1.14 dcc[i].type = NULL;
299 fabian 1.12 dcc[i].sock = (-1);
300     removedcc(i);
301     i--;
302     }
303     }
304 segfault 1.1 }
305    
306 fabian 1.17 /* Show list of current dcc's to a dcc-chatter
307     * positive value: idx given -- negative value: sock given
308     */
309 segfault 1.1 void tell_dcc(int zidx)
310     {
311     int i, j, k;
312     char other[160];
313    
314 fabian 1.9 Context;
315 segfault 1.1 spaces[HANDLEN - 9] = 0;
316     dprintf(zidx, "SOCK ADDR PORT NICK %s HOST TYPE\n"
317     ,spaces);
318     dprintf(zidx, "---- -------- ----- ---------%s ----------------- ----\n"
319     ,spaces);
320     spaces[HANDLEN - 9] = ' ';
321 fabian 1.17 /* Show server */
322 segfault 1.1 for (i = 0; i < dcc_total; i++) {
323     j = strlen(dcc[i].host);
324     if (j > 17)
325     j -= 17;
326     else
327     j = 0;
328     if (dcc[i].type && dcc[i].type->display)
329     dcc[i].type->display(i, other);
330     else {
331     sprintf(other, "?:%lX !! ERROR !!", (long) dcc[i].type);
332     break;
333     }
334     k = HANDLEN - strlen(dcc[i].nick);
335     spaces[k] = 0;
336 fabian 1.14 dprintf(zidx, "%-4d %08X %5d %s%s %-17s %s\n", dcc[i].sock, dcc[i].addr,
337 segfault 1.1 dcc[i].port, dcc[i].nick, spaces, dcc[i].host + j, other);
338     spaces[k] = ' ';
339     }
340     }
341    
342 fabian 1.17 /* Mark someone on dcc chat as no longer away
343     */
344 segfault 1.1 void not_away(int idx)
345     {
346 fabian 1.9 Context;
347 segfault 1.1 if (dcc[idx].u.chat->away == NULL) {
348     dprintf(idx, "You weren't away!\n");
349     return;
350     }
351     if (dcc[idx].u.chat->channel >= 0) {
352     chanout_but(-1, dcc[idx].u.chat->channel,
353     "*** %s is no longer away.\n", dcc[idx].nick);
354 fabian 1.9 Context;
355 segfault 1.1 if (dcc[idx].u.chat->channel < 100000) {
356     botnet_send_away(-1, botnetnick, dcc[idx].sock, NULL, idx);
357     }
358     }
359     dprintf(idx, "You're not away any more.\n");
360     nfree(dcc[idx].u.chat->away);
361     dcc[idx].u.chat->away = NULL;
362     check_tcl_away(botnetnick, dcc[idx].sock, NULL);
363     }
364    
365     void set_away(int idx, char *s)
366     {
367     if (s == NULL) {
368     not_away(idx);
369     return;
370     }
371     if (!s[0]) {
372     not_away(idx);
373     return;
374     }
375     if (dcc[idx].u.chat->away != NULL)
376     nfree(dcc[idx].u.chat->away);
377     dcc[idx].u.chat->away = (char *) nmalloc(strlen(s) + 1);
378     strcpy(dcc[idx].u.chat->away, s);
379     if (dcc[idx].u.chat->channel >= 0) {
380     chanout_but(-1, dcc[idx].u.chat->channel,
381     "*** %s is now away: %s\n", dcc[idx].nick, s);
382 fabian 1.9 Context;
383 segfault 1.1 if (dcc[idx].u.chat->channel < 100000) {
384     botnet_send_away(-1, botnetnick, dcc[idx].sock, s, idx);
385     }
386     }
387     dprintf(idx, "You are now away.\n");
388     check_tcl_away(botnetnick, dcc[idx].sock, s);
389     }
390    
391 fabian 1.17 /* This helps the memory debugging
392     */
393 segfault 1.1 void *_get_data_ptr(int size, char *file, int line)
394     {
395     char *p;
396 fabian 1.9 #ifdef DEBUG_MEM
397 segfault 1.1 char x[1024];
398    
399     simple_sprintf(x, "dccutil.c:%s", file);
400     p = n_malloc(size, x, line);
401     #else
402     p = nmalloc(size);
403     #endif
404     bzero(p, size);
405     return p;
406     }
407    
408 fabian 1.17 /* Make a password, 10-15 random letters and digits
409     */
410 segfault 1.1 void makepass(char *s)
411     {
412 fabian 1.2 int i;
413 segfault 1.1
414     i = 10 + (random() % 6);
415 fabian 1.2 make_rand_str(s, i);
416 segfault 1.1 }
417    
418     void flush_lines(int idx, struct chat_info *ci)
419     {
420     int c = ci->line_count;
421     struct msgq *p = ci->buffer, *o;
422    
423     while (p && c < (ci->max_line)) {
424     ci->current_lines--;
425     tputs(dcc[idx].sock, p->msg, p->len);
426     nfree(p->msg);
427     o = p->next;
428     nfree(p);
429     p = o;
430     c++;
431     }
432     if (p != NULL) {
433     if (dcc[idx].status & STAT_TELNET)
434     tputs(dcc[idx].sock, "[More]: ", 8);
435     else
436     tputs(dcc[idx].sock, "[More]\n", 7);
437     }
438     ci->buffer = p;
439     ci->line_count = 0;
440     }
441    
442     int new_dcc(struct dcc_table *type, int xtra_size)
443     {
444     int i = dcc_total;
445    
446     if (dcc_total == max_dcc)
447     return -1;
448     dcc_total++;
449     bzero((char *) &dcc[i], sizeof(struct dcc_t));
450    
451     dcc[i].type = type;
452     if (xtra_size) {
453     dcc[i].u.other = nmalloc(xtra_size);
454     bzero(dcc[i].u.other, xtra_size);
455     }
456     return i;
457     }
458    
459 fabian 1.3 /* Changes the given dcc entry to another type */
460     void changeover_dcc(int i, struct dcc_table *type, int xtra_size)
461     {
462 fabian 1.17 /* Free old structure */
463 fabian 1.3 if (dcc[i].type && dcc[i].type->kill)
464     dcc[i].type->kill(i, dcc[i].u.other);
465     else if (dcc[i].u.other) {
466     nfree(dcc[i].u.other);
467     dcc[i].u.other = NULL;
468     }
469    
470     dcc[i].type = type;
471     if (xtra_size) {
472     dcc[i].u.other = nmalloc(xtra_size);
473     bzero(dcc[i].u.other, xtra_size);
474     }
475     }
476    
477 segfault 1.1 int detect_dcc_flood(time_t * timer, struct chat_info *chat, int idx)
478     {
479     time_t t;
480    
481     if (dcc_flood_thr == 0)
482     return 0;
483     t = now;
484     if (*timer != t) {
485     *timer = t;
486     chat->msgs_per_sec = 0;
487     } else {
488     chat->msgs_per_sec++;
489     if (chat->msgs_per_sec > dcc_flood_thr) {
490     /* FLOOD */
491     dprintf(idx, "*** FLOOD: %s.\n", IRC_GOODBYE);
492 fabian 1.17 /* Evil assumption here that flags&DCT_CHAT implies chat type */
493 segfault 1.1 if ((dcc[idx].type->flags & DCT_CHAT) && chat &&
494     (chat->channel >= 0)) {
495     char x[1024];
496    
497     simple_sprintf(x, DCC_FLOODBOOT, dcc[idx].nick);
498     chanout_but(idx, chat->channel, "*** %s", x);
499     if (chat->channel < 100000)
500     botnet_send_part_idx(idx, x);
501     }
502     check_tcl_chof(dcc[idx].nick, dcc[idx].sock);
503     if ((dcc[idx].sock != STDOUT) || backgrd) {
504     killsock(dcc[idx].sock);
505     lostdcc(idx);
506     } else {
507     dprintf(DP_STDOUT, "\n### SIMULATION RESET ###\n\n");
508     dcc_chatter(idx);
509     }
510     return 1; /* <- flood */
511     }
512     }
513     return 0;
514     }
515    
516 fabian 1.17 /* Handle someone being booted from dcc chat.
517     */
518 segfault 1.1 void do_boot(int idx, char *by, char *reason)
519     {
520     int files = (dcc[idx].type != &DCC_CHAT);
521    
522     dprintf(idx, DCC_BOOTED1);
523     dprintf(idx, DCC_BOOTED2, DCC_BOOTED2_ARGS);
524 fabian 1.17 /* If it's a partyliner (chatterer :) */
525     /* Horrible assumption that DCT_CHAT using structure uses same format
526 segfault 1.1 * as DCC_CHAT */
527     if ((dcc[idx].type->flags & DCT_CHAT) &&
528     (dcc[idx].u.chat->channel >= 0)) {
529     char x[1024];
530    
531     simple_sprintf(x, "%s booted %s from the party line%s%s",
532     by, dcc[idx].nick, reason[0] ? ": " : "", reason);
533     chanout_but(idx, dcc[idx].u.chat->channel, "*** %s.\n", x);
534     if (dcc[idx].u.chat->channel < 100000)
535     botnet_send_part_idx(idx, x);
536     }
537     check_tcl_chof(dcc[idx].nick, dcc[idx].sock);
538     if ((dcc[idx].sock != STDOUT) || backgrd) {
539     killsock(dcc[idx].sock);
540 fabian 1.11 lostdcc(idx);
541 fabian 1.17 /* Entry must remain in the table so it can be logged by the caller */
542 segfault 1.1 } else {
543     dprintf(DP_STDOUT, "\n### SIMULATION RESET\n\n");
544     dcc_chatter(idx);
545     }
546     return;
547     }

webmaster@eggheads.org
ViewVC Help
Powered by ViewVC 1.1.23