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