| 1 |
/* Mixmaster version 3 -- (C) 1999 Anonymizer Inc.
|
| 2 |
|
| 3 |
Mixmaster may be redistributed and modified under certain conditions.
|
| 4 |
This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
|
| 5 |
ANY KIND, either express or implied. See the file COPYRIGHT for
|
| 6 |
details.
|
| 7 |
|
| 8 |
Parse RFC 822 headers
|
| 9 |
$Id: rfc822.c,v 1.1 2001/10/31 08:19:53 rabbi Exp $ */
|
| 10 |
|
| 11 |
|
| 12 |
#include "mix3.h"
|
| 13 |
|
| 14 |
static int is_specials(int c);
|
| 15 |
static int is_qtext(char c);
|
| 16 |
static int is_ctext(char c);
|
| 17 |
static void wsc(BUFFER *in, BUFFER *xomment);
|
| 18 |
static int word(BUFFER *in, BUFFER *word, BUFFER *x);
|
| 19 |
static int atom(BUFFER *in, BUFFER *atom, BUFFER *x);
|
| 20 |
static int quoted_string(BUFFER *in, BUFFER *string, BUFFER *x);
|
| 21 |
static int comment(BUFFER *in, BUFFER *string);
|
| 22 |
static int local_part(BUFFER *in, BUFFER *addr, BUFFER *x);
|
| 23 |
static int domain(BUFFER *in, BUFFER *domain, BUFFER *x);
|
| 24 |
static int sub_domain(BUFFER *in, BUFFER *sub, BUFFER *x);
|
| 25 |
static int domain_ref(BUFFER *in, BUFFER *dom, BUFFER *x);
|
| 26 |
static int domain_literal(BUFFER *in, BUFFER *dom, BUFFER *x);
|
| 27 |
static int addr_spec(BUFFER *in, BUFFER *addr, BUFFER *x);
|
| 28 |
static int route_addr(BUFFER *in, BUFFER *addr, BUFFER *x);
|
| 29 |
static int phrase(BUFFER *in, BUFFER *phr, BUFFER *x);
|
| 30 |
static int mailbox(BUFFER *in, BUFFER *mailbox, BUFFER *name, BUFFER *x);
|
| 31 |
static int group(BUFFER *in, BUFFER *group, BUFFER *name, BUFFER *x);
|
| 32 |
|
| 33 |
static void backtrack(BUFFER *b, int len)
|
| 34 |
{
|
| 35 |
if (b) {
|
| 36 |
b->length = len;
|
| 37 |
b->data[b->length] = '\0';
|
| 38 |
}
|
| 39 |
}
|
| 40 |
|
| 41 |
/* white space and comments */
|
| 42 |
static void wsc(BUFFER *in, BUFFER *string)
|
| 43 |
{
|
| 44 |
char c;
|
| 45 |
|
| 46 |
for (;;) {
|
| 47 |
c = buf_getc(in);
|
| 48 |
if (c == -1)
|
| 49 |
break;
|
| 50 |
else if (c == '\n') {
|
| 51 |
c = buf_getc(in);
|
| 52 |
if (c != ' ' && c != '\t') {
|
| 53 |
if (c != -1)
|
| 54 |
buf_ungetc(in), buf_ungetc(in);
|
| 55 |
break;
|
| 56 |
}
|
| 57 |
} else {
|
| 58 |
if (c != ' ' && c != '\t') {
|
| 59 |
buf_ungetc(in);
|
| 60 |
if (!comment(in, string))
|
| 61 |
break;
|
| 62 |
}
|
| 63 |
}
|
| 64 |
}
|
| 65 |
}
|
| 66 |
|
| 67 |
/* specials = "(" / ")" / "<" / ">" / "@" ; Must be in quoted-
|
| 68 |
* / "," / ";" / ":" / "\" / <"> ; string, to use
|
| 69 |
* / "." / "[" / "]" ; within a word.
|
| 70 |
*/
|
| 71 |
|
| 72 |
static int is_specials(int c)
|
| 73 |
{
|
| 74 |
return (c == '(' || c == ')' || c == '<' || c == '>' || c == '@' ||
|
| 75 |
c == ',' || c == ';' || c == ':' || c == '\\' || c == '\"' ||
|
| 76 |
c == '.' || c == '[' || c == ']');
|
| 77 |
}
|
| 78 |
|
| 79 |
/* qtext = <any CHAR excepting <">, ; => may be folded
|
| 80 |
* "\" & CR, and including
|
| 81 |
* linear-white-space>
|
| 82 |
*/
|
| 83 |
static int is_qtext(char c)
|
| 84 |
{
|
| 85 |
return (c != '\"' && c != '\\' && c != '\n');
|
| 86 |
}
|
| 87 |
|
| 88 |
/* ctext = <any CHAR excluding "(", ; => may be folded
|
| 89 |
* ")", "\" & CR, & including
|
| 90 |
* linear-white-space>
|
| 91 |
*/
|
| 92 |
static int is_ctext(char c)
|
| 93 |
{
|
| 94 |
return (c != '(' && c != ')' && c != '\\' && c != '\n');
|
| 95 |
}
|
| 96 |
|
| 97 |
/* word = atom / quoted-string
|
| 98 |
*/
|
| 99 |
static int word(BUFFER *in, BUFFER *word, BUFFER *x)
|
| 100 |
{
|
| 101 |
return (atom(in, word, x) || quoted_string(in, word, x));
|
| 102 |
}
|
| 103 |
|
| 104 |
/* atom = 1*<any CHAR except specials, SPACE and CTLs>
|
| 105 |
*/
|
| 106 |
static int atom(BUFFER *in, BUFFER *atom, BUFFER *x)
|
| 107 |
{
|
| 108 |
int c;
|
| 109 |
|
| 110 |
buf_clear(atom);
|
| 111 |
wsc(in, x);
|
| 112 |
for (;;) {
|
| 113 |
c = buf_getc(in);
|
| 114 |
if (c == -1)
|
| 115 |
break;
|
| 116 |
else if (is_specials(c) || c == ' ' || c < 32 || c == 127) {
|
| 117 |
buf_ungetc(in);
|
| 118 |
break;
|
| 119 |
} else
|
| 120 |
buf_appendc(atom, c);
|
| 121 |
}
|
| 122 |
if (atom->length)
|
| 123 |
wsc(in, x);
|
| 124 |
return (atom->length);
|
| 125 |
}
|
| 126 |
|
| 127 |
/* quoted-string = <"> *(qtext/quoted-pair) <">; Regular qtext or
|
| 128 |
* ; quoted chars.
|
| 129 |
*/
|
| 130 |
static int quoted_string(BUFFER *in, BUFFER *string, BUFFER *x)
|
| 131 |
{
|
| 132 |
int ptr, xlen;
|
| 133 |
int c;
|
| 134 |
|
| 135 |
ptr = in->ptr, xlen = x ? x->length : 0;
|
| 136 |
buf_clear(string);
|
| 137 |
wsc(in, NULL);
|
| 138 |
c = buf_getc(in);
|
| 139 |
if (c == '\"') {
|
| 140 |
#if 0
|
| 141 |
buf_appendc(string, c);
|
| 142 |
#endif
|
| 143 |
for (;;) {
|
| 144 |
c = buf_getc(in);
|
| 145 |
if (is_qtext(c))
|
| 146 |
buf_appendc(string, c);
|
| 147 |
else if (c == '\n') {
|
| 148 |
c = buf_getc(in);
|
| 149 |
if (c != ' ' && c != '\n')
|
| 150 |
break;
|
| 151 |
} else if (c == '\\') {
|
| 152 |
c = buf_getc(in);
|
| 153 |
if (c == -1)
|
| 154 |
break;
|
| 155 |
else
|
| 156 |
buf_appendc(string, c);
|
| 157 |
} else if (c == '\"') {
|
| 158 |
#if 0
|
| 159 |
buf_appendc(string, c);
|
| 160 |
#endif
|
| 161 |
wsc(in, NULL);
|
| 162 |
return (1);
|
| 163 |
} else
|
| 164 |
break;
|
| 165 |
}
|
| 166 |
}
|
| 167 |
in->ptr = ptr, backtrack(x, xlen);
|
| 168 |
return (0);
|
| 169 |
}
|
| 170 |
|
| 171 |
/* comment = "(" *(ctext / quoted-pair / comment) ")"
|
| 172 |
*/
|
| 173 |
static int comment(BUFFER *in, BUFFER *string)
|
| 174 |
{
|
| 175 |
int ptr, xlen;
|
| 176 |
int separator = 0;
|
| 177 |
int c;
|
| 178 |
|
| 179 |
ptr = in->ptr;
|
| 180 |
xlen = string ? string->length : 0;
|
| 181 |
if (xlen)
|
| 182 |
separator = 1;
|
| 183 |
c = buf_getc(in);
|
| 184 |
if (c == '(') {
|
| 185 |
for (;;) {
|
| 186 |
c = buf_getc(in);
|
| 187 |
if (c == -1)
|
| 188 |
return(1); /* unterminated comment, bail out */
|
| 189 |
if (is_ctext(c)) {
|
| 190 |
if (string != NULL) {
|
| 191 |
if (separator)
|
| 192 |
buf_appendc(string, ' '), separator = 0;
|
| 193 |
buf_appendc(string, c);
|
| 194 |
}
|
| 195 |
} else if (c == '\n') {
|
| 196 |
c = buf_getc(in);
|
| 197 |
if (c != ' ' && c != '\n')
|
| 198 |
break;
|
| 199 |
} else if (c == '\\') {
|
| 200 |
c = buf_getc(in);
|
| 201 |
if (c != -1) {
|
| 202 |
if (string != NULL) {
|
| 203 |
if (separator)
|
| 204 |
buf_appendc(string, ' '), separator = 0;
|
| 205 |
buf_appendc(string, c);
|
| 206 |
}
|
| 207 |
}
|
| 208 |
} else if (c == ')')
|
| 209 |
return (1);
|
| 210 |
else {
|
| 211 |
BUFFER *s;
|
| 212 |
int o;
|
| 213 |
|
| 214 |
s = buf_new();
|
| 215 |
buf_ungetc(in);
|
| 216 |
o = comment(in, s);
|
| 217 |
if (o && string != NULL) {
|
| 218 |
if (separator)
|
| 219 |
buf_appendc(string, ' '), separator = 0;
|
| 220 |
buf_cat(string, s);
|
| 221 |
}
|
| 222 |
buf_free(s);
|
| 223 |
if (!o)
|
| 224 |
break;
|
| 225 |
}
|
| 226 |
}
|
| 227 |
}
|
| 228 |
in->ptr = ptr;
|
| 229 |
backtrack(string, xlen);
|
| 230 |
return (0);
|
| 231 |
}
|
| 232 |
|
| 233 |
/* local-part = word *("." word) ; uninterpreted
|
| 234 |
* ; case-preserved
|
| 235 |
*/
|
| 236 |
static int local_part(BUFFER *in, BUFFER *addr, BUFFER *x)
|
| 237 |
{
|
| 238 |
BUFFER *w;
|
| 239 |
int c;
|
| 240 |
|
| 241 |
buf_clear(addr);
|
| 242 |
if (!word(in, addr, x))
|
| 243 |
return (0);
|
| 244 |
w = buf_new();
|
| 245 |
for (;;) {
|
| 246 |
c = buf_getc(in);
|
| 247 |
if (c == -1)
|
| 248 |
break;
|
| 249 |
if (c == '.' && (word(in, w, x)))
|
| 250 |
buf_appendc(addr, '.'), buf_cat(addr, w);
|
| 251 |
else {
|
| 252 |
buf_ungetc(in);
|
| 253 |
break;
|
| 254 |
}
|
| 255 |
}
|
| 256 |
buf_free(w);
|
| 257 |
return (addr->length);
|
| 258 |
}
|
| 259 |
|
| 260 |
/* domain = sub-domain *("." sub-domain)
|
| 261 |
*/
|
| 262 |
static int domain(BUFFER *in, BUFFER *domain, BUFFER *x)
|
| 263 |
{
|
| 264 |
BUFFER *sub;
|
| 265 |
int c;
|
| 266 |
|
| 267 |
if (!sub_domain(in, domain, x))
|
| 268 |
return (0);
|
| 269 |
sub = buf_new();
|
| 270 |
for (;;) {
|
| 271 |
c = buf_getc(in);
|
| 272 |
if (c == -1)
|
| 273 |
break;
|
| 274 |
if (c == '.' && (sub_domain(in, sub, x)))
|
| 275 |
buf_appendc(domain, '.'), buf_cat(domain, sub);
|
| 276 |
else {
|
| 277 |
buf_ungetc(in);
|
| 278 |
break;
|
| 279 |
}
|
| 280 |
}
|
| 281 |
buf_free(sub);
|
| 282 |
return (domain->length);
|
| 283 |
}
|
| 284 |
|
| 285 |
/* sub-domain = domain-ref / domain-literal
|
| 286 |
*/
|
| 287 |
static int sub_domain(BUFFER *in, BUFFER *sub, BUFFER *x)
|
| 288 |
{
|
| 289 |
return (domain_ref(in, sub, x) || domain_literal(in, sub, x));
|
| 290 |
}
|
| 291 |
|
| 292 |
/* domain-ref = atom ; symbolic reference
|
| 293 |
*/
|
| 294 |
static int domain_ref(BUFFER *in, BUFFER *d, BUFFER *x)
|
| 295 |
{
|
| 296 |
return (atom(in, d, x));
|
| 297 |
}
|
| 298 |
|
| 299 |
/* addr-spec = local-part "@" domain ; global address
|
| 300 |
*/
|
| 301 |
static int addr_spec(BUFFER *in, BUFFER *addr, BUFFER *x)
|
| 302 |
{
|
| 303 |
BUFFER *dom;
|
| 304 |
int ptr, xlen;
|
| 305 |
|
| 306 |
ptr = in->ptr, xlen = x ? x->length : 0;
|
| 307 |
dom = buf_new();
|
| 308 |
buf_clear(addr);
|
| 309 |
if (local_part(in, addr, x) && buf_getc(in) == '@' && domain(in, dom, x))
|
| 310 |
buf_appendc(addr, '@'), buf_cat(addr, dom);
|
| 311 |
else
|
| 312 |
buf_clear(addr), in->ptr = ptr, backtrack(x, xlen);
|
| 313 |
buf_free(dom);
|
| 314 |
return (addr->length);
|
| 315 |
}
|
| 316 |
|
| 317 |
/* route-addr = "<" [route] addr-spec ">"
|
| 318 |
*/
|
| 319 |
static int route_addr(BUFFER *in, BUFFER *addr, BUFFER *x)
|
| 320 |
{
|
| 321 |
int c;
|
| 322 |
int ptr, xlen;
|
| 323 |
|
| 324 |
ptr = in->ptr, xlen = x ? x->length : 0;
|
| 325 |
c = buf_getc(in);
|
| 326 |
if (c == -1)
|
| 327 |
return (0);
|
| 328 |
if (c != '<') {
|
| 329 |
buf_ungetc(in);
|
| 330 |
return (0);
|
| 331 |
}
|
| 332 |
if (addr_spec(in, addr, x) && buf_getc(in) == '>')
|
| 333 |
return (1);
|
| 334 |
in->ptr = ptr, backtrack(x, xlen);
|
| 335 |
return (0);
|
| 336 |
}
|
| 337 |
|
| 338 |
/* phrase = 1*word ; Sequence of words
|
| 339 |
*/
|
| 340 |
static int phrase(BUFFER *in, BUFFER *phr, BUFFER *x)
|
| 341 |
{
|
| 342 |
BUFFER *w;
|
| 343 |
|
| 344 |
buf_clear(phr);
|
| 345 |
w = buf_new();
|
| 346 |
while (word(in, w, x)) {
|
| 347 |
if (phr->length)
|
| 348 |
buf_appendc(phr, ' ');
|
| 349 |
buf_cat(phr, w);
|
| 350 |
}
|
| 351 |
buf_free(w);
|
| 352 |
return (phr->length);
|
| 353 |
}
|
| 354 |
|
| 355 |
/* mailbox = addr-spec ; simple address
|
| 356 |
* / [phrase] route-addr ; name & addr-spec
|
| 357 |
* (RFC 1123)
|
| 358 |
*/
|
| 359 |
static int mailbox(BUFFER *in, BUFFER *mailbox, BUFFER *name, BUFFER *x)
|
| 360 |
{
|
| 361 |
int ptr, xlen, ret;
|
| 362 |
|
| 363 |
buf_clear(name);
|
| 364 |
if (addr_spec(in, mailbox, x))
|
| 365 |
return (1);
|
| 366 |
|
| 367 |
ptr = in->ptr, xlen = x ? x->length : 0;
|
| 368 |
ret = phrase(in, name, x) && route_addr(in, mailbox, x);
|
| 369 |
if (!ret) {
|
| 370 |
in->ptr = ptr, backtrack(x, xlen);
|
| 371 |
ret = route_addr(in, mailbox, x);
|
| 372 |
}
|
| 373 |
|
| 374 |
return (ret);
|
| 375 |
}
|
| 376 |
|
| 377 |
/* address = mailbox ; one addressee
|
| 378 |
* / group ; named list
|
| 379 |
*/
|
| 380 |
static int address(BUFFER *in, BUFFER *address, BUFFER *name, BUFFER *x)
|
| 381 |
{
|
| 382 |
return (mailbox(in, address, name, x) || group(in, address, name, x));
|
| 383 |
}
|
| 384 |
|
| 385 |
/* group = phrase ":" [#mailbox] ";"
|
| 386 |
*/
|
| 387 |
static int group(BUFFER *in, BUFFER *group, BUFFER *name, BUFFER *x)
|
| 388 |
{
|
| 389 |
BUFFER *addr, *tmp;
|
| 390 |
int ptr, xlen, ret = 0;
|
| 391 |
|
| 392 |
ptr = in->ptr, xlen = x ? x->length : 0;
|
| 393 |
addr = buf_new();
|
| 394 |
tmp = buf_new();
|
| 395 |
buf_clear(group);
|
| 396 |
if (phrase(in, name, x) && buf_getc(in) == ':') {
|
| 397 |
while (mailbox(in, addr, tmp, x))
|
| 398 |
buf_cat(group, addr), buf_nl(group);
|
| 399 |
ret = buf_getc(in) == ';';
|
| 400 |
}
|
| 401 |
if (!ret)
|
| 402 |
in->ptr = ptr, backtrack(x, xlen);
|
| 403 |
buf_free(addr);
|
| 404 |
buf_free(tmp);
|
| 405 |
return (ret);
|
| 406 |
}
|
| 407 |
|
| 408 |
/* domain-literal = "[" *(dtext / quoted-pair) "]"
|
| 409 |
*/
|
| 410 |
static int domain_literal(BUFFER *in, BUFFER *dom, BUFFER *x)
|
| 411 |
{
|
| 412 |
return 0; /* XXX */
|
| 413 |
}
|
| 414 |
|
| 415 |
/* local address without `@' is not specified in RFC 822 */
|
| 416 |
|
| 417 |
/* local_addr = "<" atom ">" */
|
| 418 |
static int local_addr(BUFFER *in, BUFFER *addr, BUFFER *x)
|
| 419 |
{
|
| 420 |
int c;
|
| 421 |
int ptr, xlen;
|
| 422 |
|
| 423 |
ptr = in->ptr, xlen = x ? x->length : 0;
|
| 424 |
c = buf_getc(in);
|
| 425 |
if (c == -1)
|
| 426 |
return (0);
|
| 427 |
if (c != '<') {
|
| 428 |
buf_ungetc(in);
|
| 429 |
return (0);
|
| 430 |
}
|
| 431 |
if (atom(in, addr, x) && buf_getc(in) == '>')
|
| 432 |
return (1);
|
| 433 |
in->ptr = ptr, backtrack(x, xlen);
|
| 434 |
return (0);
|
| 435 |
}
|
| 436 |
|
| 437 |
static int localaddress(BUFFER *in, BUFFER *address, BUFFER *name, BUFFER *x)
|
| 438 |
{
|
| 439 |
int ptr, xlen;
|
| 440 |
|
| 441 |
buf_clear(name);
|
| 442 |
if (local_addr(in, address, x))
|
| 443 |
return (1);
|
| 444 |
ptr = in->ptr, xlen = x ? x->length : 0;
|
| 445 |
if (phrase(in, name, x) && local_addr(in, address, x))
|
| 446 |
return (1);
|
| 447 |
in->ptr = ptr, backtrack(x, xlen);
|
| 448 |
buf_clear(name);
|
| 449 |
return (atom(in, address, x));
|
| 450 |
}
|
| 451 |
|
| 452 |
void rfc822_addr(BUFFER *destination, BUFFER *list)
|
| 453 |
{
|
| 454 |
BUFFER *addr, *name;
|
| 455 |
|
| 456 |
addr = buf_new();
|
| 457 |
name = buf_new();
|
| 458 |
|
| 459 |
for (;;) {
|
| 460 |
if (!address(destination, addr, name, NULL) &&
|
| 461 |
!localaddress(destination, addr, name, NULL))
|
| 462 |
break;
|
| 463 |
buf_cat(list, addr);
|
| 464 |
buf_nl(list);
|
| 465 |
if (buf_getc(destination) != ',')
|
| 466 |
break;
|
| 467 |
}
|
| 468 |
buf_free(addr);
|
| 469 |
buf_free(name);
|
| 470 |
}
|
| 471 |
|
| 472 |
void rfc822_name(BUFFER *line, BUFFER *name)
|
| 473 |
{
|
| 474 |
BUFFER *addr, *comment;
|
| 475 |
int ret;
|
| 476 |
|
| 477 |
addr = buf_new();
|
| 478 |
comment = buf_new();
|
| 479 |
ret = address(line, addr, name, comment);
|
| 480 |
if (ret == 0)
|
| 481 |
ret = localaddress(line, addr, name, comment);
|
| 482 |
if (ret) {
|
| 483 |
if (name->length == 0)
|
| 484 |
buf_set(name, comment);
|
| 485 |
if (name->length == 0)
|
| 486 |
buf_set(name, addr);
|
| 487 |
}
|
| 488 |
if (ret == 0)
|
| 489 |
buf_set(name, line);
|
| 490 |
buf_free(addr);
|
| 491 |
buf_free(comment);
|
| 492 |
}
|
| 493 |
|
| 494 |
/* MIME extensions. RFC 2045 */
|
| 495 |
|
| 496 |
/* tspecials := "(" / ")" / "<" / ">" / "@" /
|
| 497 |
* "," / ";" / ":" / "\" / <">
|
| 498 |
* "/" / "[" / "]" / "?" / "="
|
| 499 |
*/
|
| 500 |
|
| 501 |
static int is_tspecials(int c)
|
| 502 |
{
|
| 503 |
return (c == '(' || c == ')' || c == '<' || c == '>' || c == '@' ||
|
| 504 |
c == ',' || c == ';' || c == ':' || c == '\\' || c == '\"' ||
|
| 505 |
c == '/' || c == '[' || c == ']' || c == '?' || c == '=');
|
| 506 |
}
|
| 507 |
|
| 508 |
/* token := 1*<any (US-ASCII) CHAR except SPACE, CTLs,
|
| 509 |
* or tspecials>
|
| 510 |
*/
|
| 511 |
static int token(BUFFER *in, BUFFER *token, BUFFER *x)
|
| 512 |
{
|
| 513 |
int c;
|
| 514 |
|
| 515 |
buf_clear(token);
|
| 516 |
wsc(in, x);
|
| 517 |
for (;;) {
|
| 518 |
c = buf_getc(in);
|
| 519 |
if (c == -1)
|
| 520 |
break;
|
| 521 |
else if (is_tspecials(c) || c == ' ' || c < 32 || c == 127) {
|
| 522 |
buf_ungetc(in);
|
| 523 |
break;
|
| 524 |
} else
|
| 525 |
buf_appendc(token, c);
|
| 526 |
}
|
| 527 |
if (token->length)
|
| 528 |
wsc(in, x);
|
| 529 |
return (token->length);
|
| 530 |
}
|
| 531 |
|
| 532 |
/* value := token / quoted-string
|
| 533 |
*/
|
| 534 |
|
| 535 |
static int value(BUFFER *in, BUFFER *value, BUFFER *x)
|
| 536 |
{
|
| 537 |
return (token(in, value, x) || quoted_string(in, value, x));
|
| 538 |
}
|
| 539 |
|
| 540 |
/* parameter := attribute "=" value
|
| 541 |
*/
|
| 542 |
|
| 543 |
static int parameter(BUFFER *in, BUFFER *attribute, BUFFER *val, BUFFER *x)
|
| 544 |
{
|
| 545 |
int ptr;
|
| 546 |
ptr = in->ptr;
|
| 547 |
token(in, attribute, x);
|
| 548 |
if (buf_getc(in) != '=') {
|
| 549 |
in->ptr = ptr;
|
| 550 |
return(0);
|
| 551 |
}
|
| 552 |
return(value(in, val, x));
|
| 553 |
}
|
| 554 |
|
| 555 |
/* get type */
|
| 556 |
int get_type(BUFFER *content, BUFFER *type, BUFFER *subtype)
|
| 557 |
{
|
| 558 |
token(content, type, NULL);
|
| 559 |
if (buf_getc(content) == '/')
|
| 560 |
return (token(content, subtype, NULL));
|
| 561 |
buf_ungetc(content);
|
| 562 |
buf_clear(type);
|
| 563 |
return (0);
|
| 564 |
}
|
| 565 |
|
| 566 |
/* get parameter value */
|
| 567 |
void get_parameter(BUFFER *content, char *attribute, BUFFER *value)
|
| 568 |
{
|
| 569 |
BUFFER *tok;
|
| 570 |
tok = buf_new();
|
| 571 |
buf_clear(value);
|
| 572 |
|
| 573 |
get_type(content, tok, tok);
|
| 574 |
for (;;) {
|
| 575 |
if (buf_getc(content) != ';')
|
| 576 |
break;
|
| 577 |
if (parameter(content, tok, value, NULL) &&
|
| 578 |
strieq(attribute, tok->data))
|
| 579 |
break; /* found */
|
| 580 |
buf_clear(value);
|
| 581 |
}
|
| 582 |
buf_free(tok);
|
| 583 |
}
|
Parent Directory
| 
Revision Log