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212380e3 AC |
1 | /* tools/convertilines.c |
2 | * Copyright (c) 2002 Hybrid Development Team | |
3 | * | |
4 | * Redistribution and use in source and binary forms, with or without | |
5 | * modification, are permitted provided that the following conditions are | |
6 | * met: | |
7 | * | |
8 | * 1.Redistributions of source code must retain the above copyright notice, | |
9 | * this list of conditions and the following disclaimer. | |
10 | * 2.Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3.The name of the author may not be used to endorse or promote products | |
14 | * derived from this software without specific prior written permission. | |
15 | * | |
16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
17 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
19 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
20 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
22 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
24 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
25 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
26 | * POSSIBILITY OF SUCH DAMAGE. | |
27 | * | |
28 | * $Id: convertilines.c 6 2005-09-10 01:02:21Z nenolod $ | |
29 | */ | |
30 | ||
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
33 | #include <ctype.h> | |
34 | #include <string.h> | |
35 | ||
36 | #define BUFSIZE 512 | |
37 | ||
38 | #define FLAGS_RESTRICTED 0x001 | |
39 | #define FLAGS_EXCEEDLIMIT 0x002 | |
40 | #define FLAGS_KLINEEXEMPT 0x004 | |
212380e3 AC |
41 | #define FLAGS_NEEDIDENT 0x010 |
42 | #define FLAGS_NOTILDE 0x020 | |
43 | ||
44 | struct flag_table_struct | |
45 | { | |
46 | const char *name; | |
47 | int flag; | |
48 | }; | |
49 | static struct flag_table_struct flag_table[] = | |
50 | { | |
51 | { "restricted", FLAGS_RESTRICTED }, | |
52 | { "exceed_limit", FLAGS_EXCEEDLIMIT }, | |
53 | { "kline_exempt", FLAGS_KLINEEXEMPT }, | |
212380e3 AC |
54 | { "need_ident", FLAGS_NEEDIDENT }, |
55 | { "no_tilde", FLAGS_NOTILDE }, | |
56 | { NULL, 0 } | |
57 | }; | |
58 | ||
59 | struct AuthBlock | |
60 | { | |
61 | struct AuthBlock *next; | |
62 | ||
63 | char **hostname; | |
64 | int hostnum; | |
65 | ||
66 | char *spoof; | |
67 | char *passwd; | |
68 | int class; | |
69 | int flags; | |
70 | ||
71 | /* indicates one of above */ | |
72 | int special; | |
73 | int specialk; | |
74 | }; | |
75 | ||
76 | static struct AuthBlock *auth_spoof = NULL; | |
77 | static struct AuthBlock *auth_special = NULL; | |
78 | static struct AuthBlock *auth_passwd = NULL; | |
79 | static struct AuthBlock *auth_general = NULL; | |
80 | static struct AuthBlock *auth_restricted = NULL; | |
81 | ||
82 | static void ConvertConf(FILE* file,FILE *out); | |
83 | static void set_flags(struct AuthBlock *, const char *, const char *); | |
84 | static void usage(void); | |
85 | static char *getfield(char *); | |
86 | static struct AuthBlock *find_matching_conf(struct AuthBlock *); | |
87 | static void ReplaceQuotes(char *out, char *in); | |
88 | static void oldParseOneLine(FILE *out, char *in); | |
89 | static void write_auth_entries(FILE *out); | |
90 | static void write_specific(FILE *out, struct AuthBlock *); | |
91 | static int match(struct AuthBlock *, struct AuthBlock *); | |
92 | ||
93 | int main(int argc,char *argv[]) | |
94 | { | |
95 | FILE *in; | |
96 | FILE *out; | |
97 | ||
98 | if(argc < 3) | |
99 | usage(); | |
100 | ||
101 | if((in = fopen(argv[1],"r")) == NULL) | |
102 | { | |
103 | fprintf(stderr, "Can't open %s for reading\n", argv[1]); | |
104 | usage(); | |
105 | } | |
106 | ||
107 | if((out = fopen(argv[2],"w")) == NULL) | |
108 | { | |
109 | fprintf(stderr, "Can't open %s for writing\n", argv[2]); | |
110 | usage(); | |
111 | } | |
112 | ||
113 | ConvertConf(in, out); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
118 | void usage() | |
119 | { | |
120 | fprintf(stderr, "convertilines conf.old conf.new\n"); | |
121 | exit(-1); | |
122 | } | |
123 | ||
124 | /* | |
125 | * ConvertConf() | |
126 | * Read configuration file. | |
127 | * | |
128 | * | |
129 | * Inputs - FILE* to config file to convert | |
130 | * - FILE* to output for new style conf | |
131 | * | |
132 | */ | |
133 | ||
134 | #define MAXCONFLINKS 150 | |
135 | ||
136 | static void ConvertConf(FILE* file, FILE *out) | |
137 | { | |
138 | char line[BUFSIZE]; | |
139 | char quotedLine[BUFSIZE]; | |
140 | char* p; | |
141 | ||
142 | while (fgets(line, sizeof(line), file)) | |
143 | { | |
144 | if ((p = strchr(line, '\n'))) | |
145 | *p = '\0'; | |
146 | ||
147 | ReplaceQuotes(quotedLine,line); | |
148 | ||
149 | if(!*quotedLine || quotedLine[0] == '#' || quotedLine[0] == '\n' || | |
150 | quotedLine[0] == ' ' || quotedLine[0] == '\t') | |
151 | continue; | |
152 | ||
153 | if(quotedLine[0] == '.') | |
154 | { | |
155 | char *filename; | |
156 | char *back; | |
157 | ||
158 | if(!strncmp(quotedLine+1,"include ",8)) | |
159 | { | |
160 | if( (filename = strchr(quotedLine+8,'"')) ) | |
161 | filename++; | |
162 | else | |
163 | { | |
164 | fprintf(stderr, "Bad config line: %s", quotedLine); | |
165 | continue; | |
166 | } | |
167 | ||
168 | if((back = strchr(filename,'"'))) | |
169 | *back = '\0'; | |
170 | else | |
171 | { | |
172 | fprintf(stderr, "Bad config line: %s", quotedLine); | |
173 | continue; | |
174 | } | |
175 | ||
176 | } | |
177 | } | |
178 | ||
179 | /* Could we test if it's conf line at all? -Vesa */ | |
180 | if (quotedLine[1] == ':') | |
181 | oldParseOneLine(out,quotedLine); | |
182 | ||
183 | } | |
184 | ||
185 | fclose(file); | |
186 | ||
187 | write_auth_entries(out); | |
188 | fclose(out); | |
189 | } | |
190 | ||
191 | /* | |
192 | * ReplaceQuotes | |
193 | * Inputs - input line to quote | |
194 | * Output - quoted line | |
195 | * Side Effects - All quoted chars in input are replaced | |
196 | * with quoted values in output, # chars replaced with '\0' | |
197 | * otherwise input is copied to output. | |
198 | */ | |
199 | static void ReplaceQuotes(char* quotedLine,char *inputLine) | |
200 | { | |
201 | char *in; | |
202 | char *out; | |
203 | static char quotes[] = { | |
204 | 0, /* */ | |
205 | 0, /* a */ | |
206 | '\b', /* b */ | |
207 | 0, /* c */ | |
208 | 0, /* d */ | |
209 | 0, /* e */ | |
210 | '\f', /* f */ | |
211 | 0, /* g */ | |
212 | 0, /* h */ | |
213 | 0, /* i */ | |
214 | 0, /* j */ | |
215 | 0, /* k */ | |
216 | 0, /* l */ | |
217 | 0, /* m */ | |
218 | '\n', /* n */ | |
219 | 0, /* o */ | |
220 | 0, /* p */ | |
221 | 0, /* q */ | |
222 | '\r', /* r */ | |
223 | 0, /* s */ | |
224 | '\t', /* t */ | |
225 | 0, /* u */ | |
226 | '\v', /* v */ | |
227 | 0, /* w */ | |
228 | 0, /* x */ | |
229 | 0, /* y */ | |
230 | 0, /* z */ | |
231 | 0,0,0,0,0,0 | |
232 | }; | |
233 | ||
234 | /* | |
235 | * Do quoting of characters and # detection. | |
236 | */ | |
237 | for (out = quotedLine,in = inputLine; *in; out++, in++) | |
238 | { | |
239 | if (*in == '\\') | |
240 | { | |
241 | in++; | |
242 | if(*in == '\\') | |
243 | *out = '\\'; | |
244 | else if(*in == '#') | |
245 | *out = '#'; | |
246 | else | |
247 | *out = quotes[ (unsigned int) (*in & 0x1F) ]; | |
248 | } | |
249 | else if (*in == '#') | |
250 | { | |
251 | *out = '\0'; | |
252 | return; | |
253 | } | |
254 | else | |
255 | *out = *in; | |
256 | } | |
257 | *out = '\0'; | |
258 | } | |
259 | ||
260 | /* | |
261 | * oldParseOneLine | |
262 | * Inputs - pointer to line to parse | |
263 | * - pointer to output to write | |
264 | * Output - | |
265 | * Side Effects - Parse one old style conf line. | |
266 | */ | |
267 | ||
268 | static void oldParseOneLine(FILE *out,char* line) | |
269 | { | |
270 | char conf_letter; | |
271 | char* tmp; | |
272 | const char* host_field=NULL; | |
273 | const char* passwd_field=NULL; | |
274 | const char* user_field=NULL; | |
275 | const char* port_field = NULL; | |
276 | const char* classconf_field = NULL; | |
277 | int class_field = 0; | |
278 | ||
279 | tmp = getfield(line); | |
280 | ||
281 | conf_letter = *tmp; | |
282 | ||
283 | for (;;) /* Fake loop, that I can use break here --msa */ | |
284 | { | |
285 | /* host field */ | |
286 | if ((host_field = getfield(NULL)) == NULL) | |
287 | return; | |
288 | ||
289 | /* pass field */ | |
290 | if ((passwd_field = getfield(NULL)) == NULL) | |
291 | break; | |
292 | ||
293 | /* user field */ | |
294 | if ((user_field = getfield(NULL)) == NULL) | |
295 | break; | |
296 | ||
297 | /* port field */ | |
298 | if ((port_field = getfield(NULL)) == NULL) | |
299 | break; | |
300 | ||
301 | /* class field */ | |
302 | if ((classconf_field = getfield(NULL)) == NULL) | |
303 | break; | |
304 | ||
305 | break; | |
306 | } | |
307 | ||
308 | if (!passwd_field) | |
309 | passwd_field = ""; | |
310 | if (!user_field) | |
311 | user_field = ""; | |
312 | if (!port_field) | |
313 | port_field = ""; | |
314 | if (classconf_field) | |
315 | class_field = atoi(classconf_field); | |
316 | ||
317 | switch( conf_letter ) | |
318 | { | |
319 | case 'i': | |
320 | case 'I': | |
321 | { | |
322 | struct AuthBlock *ptr; | |
323 | struct AuthBlock *tempptr; | |
324 | ||
325 | tempptr = malloc(sizeof(struct AuthBlock)); | |
326 | memset(tempptr, 0, sizeof(*tempptr)); | |
327 | ||
328 | if(conf_letter == 'i') | |
329 | { | |
330 | tempptr->flags |= FLAGS_RESTRICTED; | |
331 | tempptr->specialk = 1; | |
332 | } | |
333 | ||
334 | if(passwd_field && *passwd_field) | |
335 | tempptr->passwd = strdup(passwd_field); | |
336 | ||
337 | tempptr->class = class_field; | |
338 | ||
339 | set_flags(tempptr, user_field, host_field); | |
340 | ||
341 | /* dont add specials/passworded ones to existing auth blocks */ | |
342 | if((ptr = find_matching_conf(tempptr))) | |
343 | { | |
344 | int authindex; | |
345 | ||
346 | authindex = ptr->hostnum; | |
347 | ptr->hostnum++; | |
348 | ||
349 | ptr->hostname = realloc((void *)ptr->hostname, ptr->hostnum * sizeof(void *)); | |
350 | ||
351 | ptr->hostname[authindex] = strdup(tempptr->hostname[0]); | |
352 | ||
353 | free(tempptr->hostname[0]); | |
354 | free(tempptr->hostname); | |
355 | free(tempptr); | |
356 | } | |
357 | else | |
358 | { | |
359 | ptr = tempptr; | |
360 | ||
361 | if(ptr->spoof) | |
362 | { | |
363 | ptr->next = auth_spoof; | |
364 | auth_spoof = ptr; | |
365 | } | |
366 | else if(ptr->special) | |
367 | { | |
368 | ptr->next = auth_special; | |
369 | auth_special = ptr; | |
370 | } | |
371 | else if(ptr->passwd) | |
372 | { | |
373 | ptr->next = auth_passwd; | |
374 | auth_passwd = ptr; | |
375 | } | |
376 | else if(ptr->specialk) | |
377 | { | |
378 | ptr->next = auth_restricted; | |
379 | auth_restricted = ptr; | |
380 | } | |
381 | else | |
382 | { | |
383 | ptr->next = auth_general; | |
384 | auth_general = ptr; | |
385 | } | |
386 | } | |
387 | } | |
388 | break; | |
389 | ||
390 | default: | |
391 | break; | |
392 | } | |
393 | } | |
394 | ||
395 | static void write_auth_entries(FILE *out) | |
396 | { | |
397 | struct AuthBlock *ptr; | |
398 | ||
399 | for(ptr = auth_spoof; ptr; ptr = ptr->next) | |
400 | write_specific(out, ptr); | |
401 | ||
402 | for(ptr = auth_special; ptr; ptr = ptr->next) | |
403 | write_specific(out, ptr); | |
404 | ||
405 | for(ptr = auth_passwd; ptr; ptr = ptr->next) | |
406 | write_specific(out, ptr); | |
407 | ||
408 | for(ptr = auth_general; ptr; ptr = ptr->next) | |
409 | write_specific(out, ptr); | |
410 | ||
411 | for(ptr = auth_restricted; ptr; ptr = ptr->next) | |
412 | write_specific(out, ptr); | |
413 | } | |
414 | ||
415 | ||
416 | static void write_specific(FILE *out, struct AuthBlock *ptr) | |
417 | { | |
418 | int i; | |
419 | int prev = 0; | |
420 | ||
421 | fprintf(out, "auth {\n"); | |
422 | ||
423 | for(i = 0; i < ptr->hostnum; i++) | |
424 | fprintf(out, "\tuser = \"%s\";\n", ptr->hostname[i]); | |
425 | ||
426 | if(ptr->spoof) | |
427 | fprintf(out, "\tspoof = \"%s\";\n", ptr->spoof); | |
428 | ||
429 | if(ptr->passwd) | |
430 | fprintf(out, "\tpassword = \"%s\";\n", ptr->passwd); | |
431 | ||
432 | if(ptr->flags) | |
433 | { | |
434 | fprintf(out, "\tflags = "); | |
435 | ||
436 | for(i = 0; flag_table[i].flag; i++) | |
437 | { | |
438 | if(ptr->flags & flag_table[i].flag) | |
439 | { | |
440 | fprintf(out, "%s%s", | |
441 | prev ? ", " : "", | |
442 | flag_table[i].name); | |
443 | prev = 1; | |
444 | } | |
445 | } | |
446 | ||
447 | fprintf(out, ";\n"); | |
448 | } | |
449 | ||
450 | fprintf(out, "\tclass = \"%d\";\n", ptr->class); | |
451 | fprintf(out, "};\n"); | |
452 | } | |
453 | ||
454 | /* | |
455 | * field breakup for ircd.conf file. | |
456 | */ | |
457 | static char *getfield(char *newline) | |
458 | { | |
459 | static char *line = NULL; | |
460 | char *end, *field; | |
461 | ||
462 | if (newline) | |
463 | line = newline; | |
464 | ||
465 | if (line == NULL) | |
466 | return(NULL); | |
467 | ||
468 | field = line; | |
469 | if ((end = strchr(line,':')) == NULL) | |
470 | { | |
471 | line = NULL; | |
472 | if ((end = strchr(field,'\n')) == NULL) | |
473 | end = field + strlen(field); | |
474 | } | |
475 | else | |
476 | line = end + 1; | |
477 | *end = '\0'; | |
478 | return(field); | |
479 | } | |
480 | ||
481 | struct AuthBlock *find_matching_conf(struct AuthBlock *acptr) | |
482 | { | |
483 | struct AuthBlock *ptr; | |
484 | ||
485 | for(ptr = auth_spoof; ptr; ptr = ptr->next) | |
486 | { | |
487 | if(match(ptr, acptr)) | |
488 | return ptr; | |
489 | } | |
490 | ||
491 | for(ptr = auth_special; ptr; ptr = ptr->next) | |
492 | { | |
493 | if(match(ptr, acptr)) | |
494 | return ptr; | |
495 | } | |
496 | ||
497 | for(ptr = auth_passwd; ptr; ptr = ptr->next) | |
498 | { | |
499 | if(match(ptr, acptr)) | |
500 | return ptr; | |
501 | } | |
502 | ||
503 | for(ptr = auth_restricted; ptr; ptr = ptr->next) | |
504 | { | |
505 | if(match(ptr, acptr)) | |
506 | return ptr; | |
507 | } | |
508 | ||
509 | for(ptr = auth_general; ptr; ptr = ptr->next) | |
510 | { | |
511 | if(match(ptr, acptr)) | |
512 | return ptr; | |
513 | } | |
514 | ||
515 | ||
516 | return NULL; | |
517 | } | |
518 | ||
519 | static int match(struct AuthBlock *ptr, struct AuthBlock *acptr) | |
520 | { | |
521 | if((ptr->class == acptr->class) && | |
522 | (ptr->flags == acptr->flags)) | |
523 | { | |
524 | const char *p1, *p2; | |
525 | ||
526 | /* check the spoofs match.. */ | |
527 | if(ptr->spoof) | |
528 | p1 = ptr->spoof; | |
529 | else | |
530 | p1 = ""; | |
531 | ||
532 | if(acptr->spoof) | |
533 | p2 = acptr->spoof; | |
534 | else | |
535 | p2 = ""; | |
536 | ||
537 | if(strcmp(p1, p2)) | |
538 | return 0; | |
539 | ||
540 | /* now check the passwords match.. */ | |
541 | if(ptr->passwd) | |
542 | p1 = ptr->passwd; | |
543 | else | |
544 | p1 = ""; | |
545 | ||
546 | if(acptr->passwd) | |
547 | p2 = acptr->passwd; | |
548 | else | |
549 | p2 = ""; | |
550 | ||
551 | if(strcmp(p1, p2)) | |
552 | return 0; | |
553 | ||
554 | return 1; | |
555 | } | |
556 | ||
557 | return 0; | |
558 | } | |
559 | ||
560 | void set_flags(struct AuthBlock *ptr, const char *user_field, const char *host_field) | |
561 | { | |
562 | for(; *user_field; user_field++) | |
563 | { | |
564 | switch(*user_field) | |
565 | { | |
566 | case '=': | |
567 | if(host_field) | |
568 | ptr->spoof = strdup(host_field); | |
569 | ||
570 | ptr->special = 1; | |
571 | break; | |
572 | ||
573 | case '-': | |
574 | ptr->flags |= FLAGS_NOTILDE; | |
575 | ptr->special = 1; | |
576 | break; | |
577 | ||
578 | case '+': | |
579 | ptr->flags |= FLAGS_NEEDIDENT; | |
580 | ptr->specialk = 1; | |
581 | break; | |
582 | ||
583 | case '^': /* is exempt from k/g lines */ | |
584 | ptr->flags |= FLAGS_KLINEEXEMPT; | |
585 | ptr->special = 1; | |
586 | break; | |
587 | ||
588 | case '>': | |
589 | ptr->flags |= FLAGS_EXCEEDLIMIT; | |
590 | ptr->special = 1; | |
591 | break; | |
592 | ||
212380e3 AC |
593 | case '!': |
594 | case '$': | |
595 | case '%': | |
596 | case '&': | |
597 | case '<': | |
598 | break; | |
599 | ||
600 | default: | |
601 | { | |
602 | int authindex; | |
603 | authindex = ptr->hostnum; | |
604 | ptr->hostnum++; | |
605 | ||
606 | ptr->hostname = realloc((void *)ptr->hostname, ptr->hostnum * sizeof(void *)); | |
607 | ||
608 | /* if the IP field contains something useful, use that */ | |
609 | if(strcmp(host_field, "NOMATCH") && (*host_field != 'x') && | |
610 | strcmp(host_field, "*") && !ptr->spoof) | |
611 | ptr->hostname[authindex] = strdup(host_field); | |
612 | else | |
613 | ptr->hostname[authindex] = strdup(user_field); | |
614 | ||
615 | return; | |
616 | } | |
617 | } | |
618 | } | |
619 | } | |
620 |