| File: | libsofia-sip-ua/msg/msg_mime.c |
| Warning: | line 405, column 27 Although the value stored to 'len' is used in the enclosing expression, the value is never actually read from 'len' |
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| 1 | /* |
| 2 | * This file is part of the Sofia-SIP package |
| 3 | * |
| 4 | * Copyright (C) 2005 Nokia Corporation. |
| 5 | * |
| 6 | * Contact: Pekka Pessi <pekka.pessi@nokia.com> |
| 7 | * |
| 8 | * This library is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public License |
| 10 | * as published by the Free Software Foundation; either version 2.1 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This library is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with this library; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 21 | * 02110-1301 USA |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | /**@ingroup msg_mime |
| 26 | * @CFILE msg_mime.c |
| 27 | * |
| 28 | * MIME-related headers and MIME multipart bodies for SIP/HTTP/RTSP. |
| 29 | * |
| 30 | * @author Pekka Pessi <Pekka.Pessi@nokia.com> |
| 31 | * |
| 32 | * @date Created: Tue Jun 13 02:57:51 2000 ppessi |
| 33 | * |
| 34 | * |
| 35 | */ |
| 36 | |
| 37 | #include "config.h" |
| 38 | |
| 39 | #define _GNU_SOURCE1 1 |
| 40 | |
| 41 | #include <sofia-sip/su_alloc.h> |
| 42 | #include <sofia-sip/su_string.h> |
| 43 | |
| 44 | #include "msg_internal.h" |
| 45 | #include "sofia-sip/msg.h" |
| 46 | #include "sofia-sip/msg_mime.h" |
| 47 | |
| 48 | #include <sofia-sip/su_uniqueid.h> |
| 49 | #include <sofia-sip/su_errno.h> |
| 50 | |
| 51 | #include <stddef.h> |
| 52 | #include <stdlib.h> |
| 53 | #include <string.h> |
| 54 | #include <limits.h> |
| 55 | #include <errno(*__errno_location ()).h> |
| 56 | #include <assert.h> |
| 57 | |
| 58 | #if !HAVE_MEMMEM1 |
| 59 | void *memmem(const void *haystack, size_t haystacklen, |
| 60 | const void *needle, size_t needlelen); |
| 61 | #endif |
| 62 | |
| 63 | /** Protocol version of MIME */ |
| 64 | char const msg_mime_version_1_0[] = "MIME/1.0"; |
| 65 | |
| 66 | #include <sofia-sip/msg_parser.h> |
| 67 | #include <sofia-sip/msg_mime_protos.h> |
| 68 | |
| 69 | /** Define a header class for headers without any extra data to copy */ |
| 70 | #define MSG_HEADER_CLASS_G(c, l, s, kind){{ msg_c_hash, msg_c_d, msg_c_e, msg_generic_dup_xtra, msg_generic_dup_one , ((void*)0), l, sizeof(l) - 1, s, (((uintptr_t)(sizeof(msg_c_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_c_t, g_common), msg_kind_kind, } } \ |
| 71 | MSG_HEADER_CLASS(msg_, c, l, s, g_common, kind, msg_generic, msg_generic){{ msg_c_hash, msg_c_d, msg_c_e, msg_generic_dup_xtra, msg_generic_dup_one , ((void*)0), l, sizeof(l) - 1, s, (((uintptr_t)(sizeof(msg_c_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_c_t, g_common), msg_kind_kind, } } |
| 72 | |
| 73 | #define msg_generic_update((void*)0) NULL((void*)0) |
| 74 | |
| 75 | /** Define a header class for a msg_list_t kind of header */ |
| 76 | #define MSG_HEADER_CLASS_LIST(c, l, s, kind){{ msg_c_hash, msg_c_d, msg_c_e, msg_list_dup_xtra, msg_list_dup_one , ((void*)0), l, sizeof(l) - 1, s, (((uintptr_t)(sizeof(msg_c_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_c_t, k_items), msg_kind_kind, }} \ |
| 77 | MSG_HEADER_CLASS(msg_, c, l, s, k_items, kind, msg_list, msg_list){{ msg_c_hash, msg_c_d, msg_c_e, msg_list_dup_xtra, msg_list_dup_one , ((void*)0), l, sizeof(l) - 1, s, (((uintptr_t)(sizeof(msg_c_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_c_t, k_items), msg_kind_kind, }} |
| 78 | |
| 79 | #define msg_list_update((void*)0) NULL((void*)0) |
| 80 | |
| 81 | /* ====================================================================== */ |
| 82 | |
| 83 | /** Calculate length of line ending (0, 1 or 2). @internal */ |
| 84 | #define CRLF_TEST(b)((b)[0] == '\r' ? ((b)[1] == '\n') + 1 : (b)[0] =='\n') ((b)[0] == '\r' ? ((b)[1] == '\n') + 1 : (b)[0] =='\n') |
| 85 | |
| 86 | /**@ingroup msg_mime |
| 87 | * @defgroup msg_multipart MIME Multipart Body |
| 88 | * |
| 89 | * Representing MIME multipart bodies and their manipulation. |
| 90 | * |
| 91 | * The #msg_multipart_t is an object for storing MIME multipart message |
| 92 | * bodies. It includes message components used for framing and identifying |
| 93 | * message parts. Its syntax is defined in @RFC2046 as follows: |
| 94 | * |
| 95 | * @code |
| 96 | * |
| 97 | * multipart-body := [preamble CRLF] |
| 98 | * dash-boundary transport-padding CRLF |
| 99 | * body-part *encapsulation |
| 100 | * close-delimiter transport-padding |
| 101 | * [CRLF epilogue] |
| 102 | * |
| 103 | * preamble := discard-text |
| 104 | * |
| 105 | * discard-text := *(*text CRLF) |
| 106 | * ; May be ignored or discarded. |
| 107 | * |
| 108 | * dash-boundary := "--" boundary |
| 109 | * ; boundary taken from the value of boundary parameter |
| 110 | * ; of the Content-Type field. |
| 111 | * |
| 112 | * boundary := 0*69<bchars> bcharsnospace |
| 113 | * |
| 114 | * bchars := bcharsnospace / " " |
| 115 | * |
| 116 | * bcharsnospace := DIGIT / ALPHA / "'" / "(" / ")" / |
| 117 | * "+" / "_" / "," / "-" / "." / |
| 118 | * "/" / ":" / "=" / "?" |
| 119 | * |
| 120 | * transport-padding := *LWSP-char |
| 121 | * ; Composers MUST NOT generate non-zero length |
| 122 | * ; transport padding, but receivers MUST be able to |
| 123 | * ; handle padding added by message transports. |
| 124 | * |
| 125 | * body-part := <"message" as defined in @RFC822, with all header fields |
| 126 | * optional, not starting with the specified dash-boundary, |
| 127 | * and with the delimiter not occurring anywhere in the body |
| 128 | * part. Note that the semantics of a part differ from the |
| 129 | * semantics of a message, as described in the text.> |
| 130 | * |
| 131 | * encapsulation := delimiter transport-padding CRLF |
| 132 | * body-part |
| 133 | * |
| 134 | * close-delimiter := delimiter "--" |
| 135 | * |
| 136 | * delimiter := CRLF dash-boundary |
| 137 | * |
| 138 | * epilogue := discard-text |
| 139 | * |
| 140 | * @endcode |
| 141 | * |
| 142 | * @par Parsing a Multipart Message |
| 143 | * |
| 144 | * When a message body contains a multipart entity (in other words, it has a |
| 145 | * MIME media type of "multipart"), the application can split the multipart |
| 146 | * entity into body parts |
| 147 | * |
| 148 | * The parsing is relatively simple, the application just gives a memory |
| 149 | * home object, a Content-Type header object and message body object as an |
| 150 | * argument to msg_multipart_parse() function: |
| 151 | * @code |
| 152 | * if (sip->sip_content_type && |
| 153 | * su_casenmatch(sip->sip_content_type, "multipart/", 10)) { |
| 154 | * msg_multipart_t *mp; |
| 155 | * |
| 156 | * if (sip->sip_multipart) |
| 157 | * mp = sip->sip_multipart; |
| 158 | * else |
| 159 | * mp = msg_multipart_parse(msg_home(msg), |
| 160 | * sip->sip_content_type, |
| 161 | * (sip_payload_t *)sip->sip_payload); |
| 162 | * |
| 163 | * if (mp) |
| 164 | * ... processing multipart ... |
| 165 | * else |
| 166 | * ... error handling ... |
| 167 | * } |
| 168 | * @endcode |
| 169 | * |
| 170 | * The resulting list of msg_multipart_t structures contain the parts of the |
| 171 | * multipart entity, each part represented by a separate #msg_multipart_t |
| 172 | * structure. Please note that in order to make error recovery possible, the |
| 173 | * parsing is not recursive - if multipart contains another multipart, the |
| 174 | * application is responsible for scanning for it and parsing it. |
| 175 | * |
| 176 | * @par Constructing a Multipart Message |
| 177 | * |
| 178 | * Constructing a multipart body is a bit more hairy. The application needs |
| 179 | * a message object (#msg_t), which is used to buffer the encoding of |
| 180 | * multipart components. |
| 181 | * |
| 182 | * As an example, let us create a "multipart/mixed" multipart entity with a |
| 183 | * HTML and GIF contents, and convert it into a #sip_payload_t structure: |
| 184 | * @code |
| 185 | * msg_t *msg = msg_create(sip_default_mclass, 0); |
| 186 | * su_home_t *home = msg_home(msg); |
| 187 | * sip_t *sip = sip_object(msg); |
| 188 | * sip_content_type_t *c; |
| 189 | * msg_multipart_t *mp = NULL; |
| 190 | * msg_header_t *h = NULL; |
| 191 | * char *b; |
| 192 | * size_t len, offset; |
| 193 | * |
| 194 | * mp = msg_multipart_create(home, "text/html;level=3", html, strlen(html)); |
| 195 | * mp->mp_next = msg_multipart_create(home, "image/gif", gif, giflen); |
| 196 | * |
| 197 | * c = sip_content_type_make(home, "multipart/mixed"); |
| 198 | * |
| 199 | * // Add delimiters to multipart, and boundary parameter to content-type |
| 200 | * if (msg_multipart_complete(home, c, mp) < 0) |
| 201 | * return -1; // Error |
| 202 | * |
| 203 | * // Combine multipart components into the chain |
| 204 | * h = NULL; |
| 205 | * if (msg_multipart_serialize(&h, mp) < 0) |
| 206 | * return -1; // Error |
| 207 | * |
| 208 | * // Encode all multipart components |
| 209 | * len = msg_multipart_prepare(msg, mp, 0); |
| 210 | * if (len < 0) |
| 211 | * return -1; // Error |
| 212 | * |
| 213 | * pl = sip_payload_create(home, NULL, len); |
| 214 | * |
| 215 | * // Copy each element from multipart to pl_data |
| 216 | * b = pl->pl_data; |
| 217 | * for (offset = 0, h = mp; offset < len; h = h->sh_succ) { |
| 218 | * memcpy(b + offset, h->sh_data, h->sh_len); |
| 219 | * offset += h->sh_len; |
| 220 | * } |
| 221 | * @endcode |
| 222 | * |
| 223 | */ |
| 224 | |
| 225 | /**Create a part for MIME multipart entity. |
| 226 | * |
| 227 | * The function msg_multipart_create() allocates a new #msg_multipart_t |
| 228 | * object from memory home @a home. If @a content_type is non-NULL, it makes |
| 229 | * a #msg_content_type_t header object and adds the header to the |
| 230 | * #msg_multipart_t object. If @a dlen is nonzero, it allocates a |
| 231 | * msg_payload_t structure of @a dlen bytes for the payload of the newly |
| 232 | * created #msg_multipart_t object. If @a data is non-NULL, it copies the @a |
| 233 | * dlen bytes of of data to the payload of the newly created |
| 234 | * #msg_multipart_t object. |
| 235 | * |
| 236 | * @return A pointer to the newly created #msg_multipart_t object, or NULL |
| 237 | * upon an error. |
| 238 | */ |
| 239 | msg_multipart_t *msg_multipart_create(su_home_t *home, |
| 240 | char const *content_type, |
| 241 | void const *data, |
| 242 | isize_t dlen) |
| 243 | { |
| 244 | msg_multipart_t *mp; |
| 245 | |
| 246 | mp = (msg_multipart_t *)msg_header_alloc(home, msg_multipart_class((msg_hclass_t *)msg_multipart_mclass), 0); |
| 247 | |
| 248 | if (mp) { |
| 249 | if (content_type) |
| 250 | mp->mp_content_type = msg_content_type_make(home, content_type); |
| 251 | if (dlen) |
| 252 | mp->mp_payload = msg_payload_create(home, data, dlen); |
| 253 | |
| 254 | if ((!mp->mp_content_type && content_type) || |
| 255 | (!mp->mp_payload && dlen)) { |
| 256 | su_free(home, mp->mp_content_type); |
| 257 | su_free(home, mp->mp_payload); |
| 258 | su_free(home, mp); |
| 259 | mp = NULL((void*)0); |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | return mp; |
| 264 | } |
| 265 | |
| 266 | /** Convert boundary parameter to a search string. */ |
| 267 | static char * |
| 268 | msg_multipart_boundary(su_home_t *home, char const *b) |
| 269 | { |
| 270 | char *boundary; |
| 271 | |
| 272 | if (!b || !(boundary = su_alloc(home, 2 + 2 + strlen(b) + 2 + 1))) |
| 273 | return NULL((void*)0); |
| 274 | |
| 275 | strcpy(boundary, _CR"\r" LF"\n" "--"); |
| 276 | |
| 277 | if (b[0] == '"') /* " See http://bugzilla.gnome.org/show_bug.cgi?id=134216 */ |
| 278 | |
| 279 | msg_unquote(boundary + 4, b); |
| 280 | else |
| 281 | strcpy(boundary + 4, b); |
| 282 | |
| 283 | |
| 284 | strcat(boundary + 4, _CR"\r" LF"\n"); |
| 285 | |
| 286 | return boundary; |
| 287 | } |
| 288 | |
| 289 | |
| 290 | /** Boundary chars. */ |
| 291 | static char const bchars[] = |
| 292 | "'()+_,-./:=?" |
| 293 | "0123456789" |
| 294 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| 295 | "abcdefghijklmnopqrstuvwxyz" |
| 296 | " "; |
| 297 | |
| 298 | #define bchars_len(sizeof(bchars) - 1) (sizeof(bchars) - 1) |
| 299 | |
| 300 | /** Search for a suitable boundary from MIME. */ |
| 301 | static char * |
| 302 | msg_multipart_search_boundary(su_home_t *home, char const *p, size_t len) |
| 303 | { |
| 304 | size_t m; |
| 305 | unsigned crlf; |
| 306 | char const *end = p + len; |
| 307 | char *boundary; |
| 308 | |
| 309 | if (len < 2) |
| 310 | return NULL((void*)0); |
| 311 | |
| 312 | /* Boundary looks like LF -- string SP* [CR] LF */ |
| 313 | if (memcmp("--", p, 2) == 0) { |
| 314 | /* We can be at boundary beginning, there is no CR LF */ |
| 315 | m = 2 + su_memspn(p + 2, len - 2, bchars, bchars_len(sizeof(bchars) - 1)); |
| 316 | if (m + 2 >= len) |
| 317 | return NULL((void*)0); |
| 318 | crlf = p[m] == '\r' ? 1 + (p[m + 1] == '\n') : (p[m] == '\n'); |
| 319 | while (p[m - 1] == ' ' || p[m - 1] == '\t') |
| 320 | m--; |
| 321 | if (m > 2 && crlf) { |
| 322 | boundary = su_alloc(home, 2 + m + 2 + 1); |
| 323 | if (boundary) { |
| 324 | memcpy(boundary, _CR"\r" LF"\n", 2); |
| 325 | memcpy(boundary + 2, p, m); |
| 326 | strcpy(boundary + m + 2, _CR"\r" LF"\n"); |
| 327 | } |
| 328 | return boundary; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | /* Look for LF -- */ |
| 333 | for (;(p = memmem(p, end - p, LF"\n" "--", 3)); p += 3) { |
| 334 | len = end - p; |
| 335 | m = 3 + su_memspn(p + 3, len - 3, bchars, bchars_len(sizeof(bchars) - 1)); |
| 336 | if (m + 2 >= len) |
| 337 | return NULL((void*)0); |
| 338 | crlf = p[m] == '\r' ? 1 + (p[m + 1] == '\n') : (p[m] == '\n'); |
| 339 | while (p[m - 1] == ' ' || p[m - 1] == '\t') |
| 340 | m--; |
| 341 | m--; |
| 342 | if (m > 2 && crlf) { |
| 343 | boundary = su_alloc(home, 2 + m + 2 + 1); |
| 344 | if (boundary) { |
| 345 | memcpy(boundary, _CR"\r" LF"\n", 2); |
| 346 | memcpy(boundary + 2, p + 1, m); |
| 347 | strcpy(boundary + 2 + m, _CR"\r" LF"\n"); |
| 348 | } |
| 349 | return boundary; |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | return NULL((void*)0); |
| 354 | } |
| 355 | |
| 356 | /** Parse a MIME multipart. |
| 357 | * |
| 358 | * The function msg_multipart_parse() parses a MIME multipart message. The |
| 359 | * common syntax of multiparts is described in @RFC2046 (section 7). |
| 360 | * |
| 361 | * @param[in,out] home home for allocating structures |
| 362 | * @param[in] c content-type header for multipart |
| 363 | * @param[in] pl payload structure for multipart |
| 364 | * |
| 365 | * After parsing, the @a pl will contain the plain-text preamble (if any). |
| 366 | * |
| 367 | * @note If no @b Content-Type header is given, the msg_multipart_parse() |
| 368 | * tries to look for a suitable boundary. Currently, it takes first |
| 369 | * boundary-looking string and uses that, so it can be fooled with, for |
| 370 | * instance, signature @c "--Pekka". |
| 371 | */ |
| 372 | msg_multipart_t *msg_multipart_parse(su_home_t *home, |
| 373 | msg_content_type_t const *c, |
| 374 | msg_payload_t *pl) |
| 375 | { |
| 376 | msg_multipart_t *mp = NULL((void*)0), *all = NULL((void*)0), **mmp = &all; |
| 377 | /* Dummy msg object */ |
| 378 | msg_t msg[1] = {{{ SU_HOME_INIT(msg){ 0, ((void*)0), ((void*)0) } }}}; |
| 379 | size_t len, m, blen; |
| 380 | char *boundary, *p, *next, save; |
| 381 | char *b, *end; |
| 382 | msg_param_t param; |
| 383 | |
| 384 | if (!pl) return NULL((void*)0); |
| 385 | |
| 386 | p = pl->pl_data; len = pl->pl_len; end = p + len; |
| 387 | |
| 388 | su_home_init(msg_home(msg)((su_home_t*)(msg))); |
| 389 | msg->m_class = msg_multipart_mclass; |
| 390 | msg->m_tail = &msg->m_chain; |
| 391 | |
| 392 | /* Get boundary from Content-Type */ |
| 393 | if (c && (param = msg_header_find_param(c->c_common, "boundary="))) |
| 394 | boundary = msg_multipart_boundary(msg_home(msg)((su_home_t*)(msg)), param); |
| 395 | else |
| 396 | boundary = msg_multipart_search_boundary(msg_home(msg)((su_home_t*)(msg)), p, len); |
| 397 | |
| 398 | if (!boundary) |
| 399 | return NULL((void*)0); |
| 400 | |
| 401 | m = strlen(boundary) - 2, blen = m - 1; |
| 402 | |
| 403 | /* Find first delimiter */ |
| 404 | if (memcmp(boundary + 2, p, m - 2) == 0) |
| 405 | b = p, p = p + m - 2, len -= m - 2; |
Although the value stored to 'len' is used in the enclosing expression, the value is never actually read from 'len' | |
| 406 | else if ((p = memmem(p, len, boundary + 1, m - 1))) { |
| 407 | if (p != pl->pl_data && p[-1] == '\r') |
| 408 | b = --p, p = p + m, len -= m; |
| 409 | else |
| 410 | b = p, p = p + m - 1, len -= m - 1; |
| 411 | } |
| 412 | else { |
| 413 | su_home_deinit(msg_home(msg)((su_home_t*)(msg))); |
| 414 | return NULL((void*)0); |
| 415 | } |
| 416 | |
| 417 | /* Split multipart into parts */ |
| 418 | for (;;) { |
| 419 | while (p[0] == ' ') |
| 420 | p++; |
| 421 | |
| 422 | p += p[0] == '\r' ? 1 + (p[1] == '\n') : (p[0] == '\n'); |
| 423 | |
| 424 | len = end - p; |
| 425 | |
| 426 | if (len < blen) |
| 427 | break; |
| 428 | |
| 429 | next = memmem(p, len, boundary + 1, m = blen); |
| 430 | |
| 431 | if (!next) |
| 432 | break; /* error */ |
| 433 | |
| 434 | if (next != p && next[-1] == '\r') |
| 435 | next--, m++; |
| 436 | |
| 437 | mp = (msg_multipart_t *)msg_header_alloc(msg_home(msg)((su_home_t*)(msg)), msg_multipart_class((msg_hclass_t *)msg_multipart_mclass), 0); |
| 438 | if (mp == NULL((void*)0)) |
| 439 | break; /* error */ |
| 440 | *mmp = mp; mmp = &mp->mp_next; |
| 441 | |
| 442 | /* Put delimiter transport-padding CRLF here */ |
| 443 | |
| 444 | *b = '\0'; |
| 445 | mp->mp_common->h_len = p - b; |
| 446 | b += strlen(boundary) - 2; |
| 447 | mp->mp_common->h_data = b; |
| 448 | |
| 449 | /* .. and body-part here */ |
| 450 | mp->mp_data = p; |
| 451 | mp->mp_len = next - p; |
| 452 | |
| 453 | if (next[m] == '-' && next[m + 1] == '-') { |
| 454 | /* We found close-delimiter */ |
| 455 | assert(mp)((void) sizeof ((mp) ? 1 : 0), __extension__ ({ if (mp) ; else __assert_fail ("mp", "msg_mime.c", 455, __extension__ __PRETTY_FUNCTION__ ); })); |
| 456 | if (!mp) |
| 457 | break; /* error */ |
| 458 | mp->mp_close_delim = (msg_payload_t *) |
| 459 | msg_header_alloc(msg_home(msg)((su_home_t*)(msg)), msg_payload_class, 0); |
| 460 | if (!mp->mp_close_delim) |
| 461 | break; /* error */ |
| 462 | /* Include also transport-padding and epilogue in the close-delimiter */ |
| 463 | *next = '\0'; |
| 464 | mp->mp_close_delim->pl_len = p + len - next; |
| 465 | next += strlen(boundary) - 2; |
| 466 | mp->mp_close_delim->pl_data = next; |
| 467 | |
| 468 | break; |
| 469 | } |
| 470 | |
| 471 | b = next; p = next + m; |
| 472 | } |
| 473 | |
| 474 | if (!mp || !mp->mp_close_delim) { |
| 475 | su_home_deinit(msg_home(msg)((su_home_t*)(msg))); |
| 476 | /* Delimiter error */ |
| 477 | return NULL((void*)0); |
| 478 | } |
| 479 | |
| 480 | /* Parse each part */ |
| 481 | for (mp = all; mp; mp = mp->mp_next) { |
| 482 | msg->m_object = (msg_pub_t *)mp; p = mp->mp_data; next = p + mp->mp_len; |
| 483 | |
| 484 | if (msg->m_tail) |
| 485 | mp->mp_common->h_prev = msg->m_tail, |
| 486 | *msg->m_tail = (msg_header_t *)mp; |
| 487 | |
| 488 | msg->m_chain = (msg_header_t *)mp; |
| 489 | msg->m_tail = &mp->mp_common->h_succ; |
| 490 | |
| 491 | save = *next; *next = '\0'; /* NUL-terminate this part */ |
| 492 | |
| 493 | for (len = next - p; len > 0; len -= m, p += m) { |
| 494 | if (IS_CRLF(p[0])((p[0]) == '\r' || (p[0]) == '\n')) { |
| 495 | m = msg_extract_separator(msg, (msg_pub_t*)mp, p, len, 1); |
| 496 | assert(m > 0)((void) sizeof ((m > 0) ? 1 : 0), __extension__ ({ if (m > 0) ; else __assert_fail ("m > 0", "msg_mime.c", 496, __extension__ __PRETTY_FUNCTION__); })); |
| 497 | |
| 498 | p += m; len -= m; |
| 499 | |
| 500 | if (len > 0) { |
| 501 | m = msg_extract_payload(msg, (msg_pub_t*)mp, NULL((void*)0), len, p, len, 1); |
| 502 | assert(m > 0)((void) sizeof ((m > 0) ? 1 : 0), __extension__ ({ if (m > 0) ; else __assert_fail ("m > 0", "msg_mime.c", 502, __extension__ __PRETTY_FUNCTION__); })); |
| 503 | assert(len == m)((void) sizeof ((len == m) ? 1 : 0), __extension__ ({ if (len == m) ; else __assert_fail ("len == m", "msg_mime.c", 503, __extension__ __PRETTY_FUNCTION__); })); |
| 504 | } |
| 505 | break; |
| 506 | } |
| 507 | |
| 508 | m = msg_extract_header(msg, (msg_pub_t*)mp, p, len, 1); |
| 509 | |
| 510 | if (m <= 0) { |
| 511 | assert(m > 0)((void) sizeof ((m > 0) ? 1 : 0), __extension__ ({ if (m > 0) ; else __assert_fail ("m > 0", "msg_mime.c", 511, __extension__ __PRETTY_FUNCTION__); })); |
| 512 | /* Xyzzy */ |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | *next = save; /* XXX - Should we leave the payload NUL-terminated? */ |
| 517 | } |
| 518 | |
| 519 | /* Postprocess */ |
| 520 | blen = strlen(boundary); |
| 521 | |
| 522 | for (mp = all; mp; mp = mp->mp_next) { |
| 523 | mp->mp_data = boundary; |
| 524 | mp->mp_len = (unsigned)blen; /* XXX */ |
| 525 | |
| 526 | if (!(mp->mp_payload || mp->mp_separator)) continue; |
| 527 | |
| 528 | if (mp->mp_close_delim) { |
| 529 | msg_header_t **tail; |
| 530 | |
| 531 | if (mp->mp_payload) |
| 532 | tail = &mp->mp_payload->pl_common->h_succ; |
| 533 | else |
| 534 | tail = &mp->mp_separator->sep_common->h_succ; |
| 535 | |
| 536 | assert(msg->m_chain == (msg_header_t *)mp)((void) sizeof ((msg->m_chain == (msg_header_t *)mp) ? 1 : 0), __extension__ ({ if (msg->m_chain == (msg_header_t *) mp) ; else __assert_fail ("msg->m_chain == (msg_header_t *)mp" , "msg_mime.c", 536, __extension__ __PRETTY_FUNCTION__); })); |
| 537 | assert(*tail == NULL)((void) sizeof ((*tail == ((void*)0)) ? 1 : 0), __extension__ ({ if (*tail == ((void*)0)) ; else __assert_fail ("*tail == NULL" , "msg_mime.c", 537, __extension__ __PRETTY_FUNCTION__); })); |
| 538 | |
| 539 | mp->mp_close_delim->pl_common->h_prev = tail; |
| 540 | *tail = (msg_header_t *)mp->mp_close_delim; |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | msg_fragment_clear(pl->pl_common); |
| 545 | pl->pl_len = all->mp_data - (char *)pl->pl_data; |
| 546 | |
| 547 | su_home_move(home, msg_home(msg)((su_home_t*)(msg))); su_home_deinit(msg_home(msg)((su_home_t*)(msg))); |
| 548 | |
| 549 | return all; |
| 550 | } |
| 551 | |
| 552 | /**Add all missing parts to the multipart. |
| 553 | * |
| 554 | * Add missing components such as boundaries between body parts, separators |
| 555 | * between body-part headers and data, and close-delimiter after last |
| 556 | * body-part to the multipart message. |
| 557 | * |
| 558 | * @param[in,out] home home for allocating structures |
| 559 | * @param[in,out] c content-type header for multipart |
| 560 | * @param[in,out] mp pointer to first multipart structure |
| 561 | * |
| 562 | * @retval 0 when successful |
| 563 | * @retval -1 upon an error |
| 564 | * |
| 565 | * @ERRORS |
| 566 | * @ERROR EBADMSG |
| 567 | * The @b Content-Type header @a c is malformed, or multipart message |
| 568 | * contains a malformed @b Content-Type header. |
| 569 | * @ERROR ENOMEM |
| 570 | * A memory allocation failed. |
| 571 | * @ERROR EINVAL |
| 572 | * The function msg_multipart_complete() was given invalid arguments. |
| 573 | */ |
| 574 | int msg_multipart_complete(su_home_t *home, |
| 575 | msg_content_type_t *c, |
| 576 | msg_multipart_t *mp) |
| 577 | { |
| 578 | char *boundary; |
| 579 | char const *b; |
| 580 | size_t blen, m; |
| 581 | |
| 582 | if (c == NULL((void*)0) || mp == NULL((void*)0)) |
| 583 | return (errno(*__errno_location ()) = EINVAL22), -1; |
| 584 | |
| 585 | if (!(b = msg_header_find_param(c->c_common, "boundary="))) { |
| 586 | /* Generate boundary */ |
| 587 | enum { tlen = 16 * 4 / 3 }; |
| 588 | char token[sizeof("boundary=") + tlen + 1]; |
| 589 | |
| 590 | if (mp->mp_data) { |
| 591 | b = mp->mp_data; |
| 592 | m = mp->mp_len; |
| 593 | |
| 594 | if (strncmp(b, _CR"\r" LF"\n" "--", 4) == 0) |
| 595 | b += 4, m -= 4; |
| 596 | else if (strncmp(b, "--", 2) == 0) |
| 597 | b += 2, m -= 2; |
| 598 | else |
| 599 | return (errno(*__errno_location ()) = EBADMSG74), -1; |
| 600 | /* XXX - quoting? */ |
| 601 | b = su_sprintf(home, "boundary=\"%.*s\"", (int)m, b); |
| 602 | } |
| 603 | else { |
| 604 | strcpy(token, "boundary="); |
| 605 | msg_random_token(token + strlen("boundary="), (size_t)tlen, NULL((void*)0), 0); |
| 606 | b = su_strdup(home, token); |
| 607 | } |
| 608 | |
| 609 | if (!b) |
| 610 | return -1; |
| 611 | |
| 612 | msg_params_replace(home, (msg_param_t **)&c->c_params, b); |
| 613 | |
| 614 | b += strlen("boundary="); |
| 615 | } |
| 616 | |
| 617 | if (!(boundary = msg_multipart_boundary(home, b))) |
| 618 | return -1; |
| 619 | |
| 620 | blen = strlen(boundary); m = blen - 2; |
| 621 | |
| 622 | for (; mp; mp = mp->mp_next) { |
| 623 | if (mp->mp_data == NULL((void*)0)) { |
| 624 | mp->mp_data = boundary; |
| 625 | mp->mp_len = (unsigned)blen; /* XXX */ |
| 626 | } else { |
| 627 | if (mp->mp_len < 3) |
| 628 | return -1; |
| 629 | if (mp->mp_data[0] == '\r' && mp->mp_data[1] == '\n') { |
| 630 | if (mp->mp_len < m || memcmp(mp->mp_data + 2, boundary + 2, m - 2)) |
| 631 | return -1; |
| 632 | } else if (mp->mp_data[0] == '\n') { |
| 633 | if (mp->mp_len < m - 1 || memcmp(mp->mp_data + 1, boundary + 2, m - 2)) |
| 634 | return -1; |
| 635 | } else { |
| 636 | if (mp->mp_len < m - 2 || memcmp(mp->mp_data, boundary + 2, m - 2)) |
| 637 | return -1; |
| 638 | } |
| 639 | } |
| 640 | |
| 641 | if (mp->mp_next == NULL((void*)0)) { |
| 642 | if (!mp->mp_close_delim) |
| 643 | mp->mp_close_delim = msg_payload_format(home, "%.*s--" _CR"\r" LF"\n", |
| 644 | (int)m, boundary); |
| 645 | if (!mp->mp_close_delim) |
| 646 | return -1; |
| 647 | } |
| 648 | else if (mp->mp_close_delim) { |
| 649 | msg_payload_t *e = mp->mp_close_delim; |
| 650 | |
| 651 | mp->mp_close_delim = NULL((void*)0); |
| 652 | |
| 653 | if (e->pl_common->h_prev) |
| 654 | *e->pl_common->h_prev = e->pl_common->h_succ; |
| 655 | if (e->pl_common->h_succ) |
| 656 | e->pl_common->h_succ->sh_prevsh_common->h_prev = e->pl_common->h_prev; |
| 657 | } |
| 658 | |
| 659 | mp->mp_common->h_data = mp->mp_data; |
| 660 | mp->mp_common->h_len = mp->mp_len; |
| 661 | |
| 662 | if (!mp->mp_separator) |
| 663 | if (!(mp->mp_separator = msg_separator_make(home, _CR"\r" LF"\n"))) |
| 664 | return -1; |
| 665 | |
| 666 | if (mp->mp_multipart) { |
| 667 | c = mp->mp_content_type; |
| 668 | if (c == NULL((void*)0)) |
| 669 | return (errno(*__errno_location ()) = EBADMSG74), -1; |
| 670 | |
| 671 | if (msg_multipart_complete(home, c, mp->mp_multipart) < 0) |
| 672 | return -1; |
| 673 | } |
| 674 | |
| 675 | if (!mp->mp_payload) |
| 676 | if (!(mp->mp_payload = msg_payload_create(home, NULL((void*)0), 0))) |
| 677 | return -1; |
| 678 | } |
| 679 | |
| 680 | return 0; |
| 681 | } |
| 682 | |
| 683 | /** Serialize a multipart message. |
| 684 | * |
| 685 | */ |
| 686 | msg_header_t *msg_multipart_serialize(msg_header_t **head0, |
| 687 | msg_multipart_t *mp) |
| 688 | { |
| 689 | msg_header_t *h_succ_all = NULL((void*)0); |
| 690 | msg_header_t *h, **head, **hh, *h0, *h_succ; |
| 691 | void *hend; |
| 692 | |
| 693 | #define is_in_chain(h)((h) && ((msg_frg_t*)(h))->h_prev != ((void*)0)) ((h) && ((msg_frg_t*)(h))->h_prev != NULL((void*)0)) |
| 694 | #define insert(head, h)((h)->sh_common->h_succ = *(head), *(head) = (h), (h)-> sh_common->h_prev = (head), (head) = &(h)->sh_common ->h_succ) \ |
| 695 | ((h)->sh_succsh_common->h_succ = *(head), *(head) = (h), \ |
| 696 | (h)->sh_prevsh_common->h_prev = (head), (head) = &(h)->sh_succsh_common->h_succ) |
| 697 | |
| 698 | if (mp == NULL((void*)0) || head0 == NULL((void*)0)) |
| 699 | return NULL((void*)0); |
| 700 | |
| 701 | h_succ_all = *head0; head = head0; |
| 702 | |
| 703 | for (; mp; mp = mp->mp_next) { |
| 704 | h0 = (msg_header_t *)mp; |
| 705 | |
| 706 | assert(mp->mp_separator)((void) sizeof ((mp->mp_separator) ? 1 : 0), __extension__ ({ if (mp->mp_separator) ; else __assert_fail ("mp->mp_separator" , "msg_mime.c", 706, __extension__ __PRETTY_FUNCTION__); })); assert(mp->mp_payload)((void) sizeof ((mp->mp_payload) ? 1 : 0), __extension__ ( { if (mp->mp_payload) ; else __assert_fail ("mp->mp_payload" , "msg_mime.c", 706, __extension__ __PRETTY_FUNCTION__); })); |
| 707 | assert(mp->mp_next || mp->mp_close_delim)((void) sizeof ((mp->mp_next || mp->mp_close_delim) ? 1 : 0), __extension__ ({ if (mp->mp_next || mp->mp_close_delim ) ; else __assert_fail ("mp->mp_next || mp->mp_close_delim" , "msg_mime.c", 707, __extension__ __PRETTY_FUNCTION__); })); |
| 708 | |
| 709 | if (!mp->mp_separator || !mp->mp_payload || |
| 710 | (!mp->mp_next && !mp->mp_close_delim)) |
| 711 | return NULL((void*)0); |
| 712 | |
| 713 | if ((void *)mp == h_succ_all) |
| 714 | h_succ_all = NULL((void*)0); |
| 715 | |
| 716 | *head0 = h0; h0->sh_prevsh_common->h_prev = head; |
| 717 | |
| 718 | if (is_in_chain(mp->mp_separator)((mp->mp_separator) && ((msg_frg_t*)(mp->mp_separator ))->h_prev != ((void*)0))) |
| 719 | hend = mp->mp_separator; |
| 720 | else if (is_in_chain(mp->mp_payload)((mp->mp_payload) && ((msg_frg_t*)(mp->mp_payload ))->h_prev != ((void*)0))) |
| 721 | hend = mp->mp_payload; |
| 722 | else if (is_in_chain(mp->mp_multipart)((mp->mp_multipart) && ((msg_frg_t*)(mp->mp_multipart ))->h_prev != ((void*)0))) |
| 723 | hend = mp->mp_multipart; |
| 724 | else if (is_in_chain(mp->mp_close_delim)((mp->mp_close_delim) && ((msg_frg_t*)(mp->mp_close_delim ))->h_prev != ((void*)0))) |
| 725 | hend = mp->mp_close_delim; |
| 726 | else if (is_in_chain(mp->mp_next)((mp->mp_next) && ((msg_frg_t*)(mp->mp_next))-> h_prev != ((void*)0))) |
| 727 | hend = mp->mp_next; |
| 728 | else |
| 729 | hend = NULL((void*)0); |
| 730 | |
| 731 | /* Search latest header in chain */ |
| 732 | for (head = &mp->mp_common->h_succ; |
| 733 | *head && *head != hend; |
| 734 | head = &(*head)->sh_succsh_common->h_succ) |
| 735 | ; |
| 736 | |
| 737 | h_succ = *head; |
| 738 | |
| 739 | /* Serialize headers */ |
| 740 | for (hh = &((msg_pub_t*)mp)->msg_request; |
| 741 | (char *)hh < (char *)&mp->mp_separator; |
| 742 | hh++) { |
| 743 | h = *hh; if (!h) continue; |
| 744 | for (h = *hh; h; h = h->sh_nextsh_header_next->shn_next) { |
| 745 | if (h == h_succ || !is_in_chain(h)((h) && ((msg_frg_t*)(h))->h_prev != ((void*)0))) { |
| 746 | *head = h; h->sh_prevsh_common->h_prev = head; head = &h->sh_succsh_common->h_succ; |
| 747 | while (*head && *head != hend) |
| 748 | head = &(*head)->sh_succsh_common->h_succ; |
| 749 | if (h == h_succ) |
| 750 | h_succ = *head; |
| 751 | } |
| 752 | else { |
| 753 | /* XXX Check that h is between head and hend */ |
| 754 | } |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | if (!is_in_chain(mp->mp_separator)((mp->mp_separator) && ((msg_frg_t*)(mp->mp_separator ))->h_prev != ((void*)0))) { |
| 759 | insert(head, (msg_header_t *)mp->mp_separator)(((msg_header_t *)mp->mp_separator)->sh_common->h_succ = *(head), *(head) = ((msg_header_t *)mp->mp_separator), ( (msg_header_t *)mp->mp_separator)->sh_common->h_prev = (head), (head) = &((msg_header_t *)mp->mp_separator )->sh_common->h_succ); |
| 760 | } else { |
| 761 | assert(h_succ == (msg_header_t *)mp->mp_separator)((void) sizeof ((h_succ == (msg_header_t *)mp->mp_separator ) ? 1 : 0), __extension__ ({ if (h_succ == (msg_header_t *)mp ->mp_separator) ; else __assert_fail ("h_succ == (msg_header_t *)mp->mp_separator" , "msg_mime.c", 761, __extension__ __PRETTY_FUNCTION__); })); |
| 762 | mp->mp_separator->sep_common->h_prev = head; |
| 763 | *head = (msg_header_t *)mp->mp_separator; |
| 764 | head = &mp->mp_separator->sep_common->h_succ; |
| 765 | h_succ = *head; |
| 766 | } |
| 767 | |
| 768 | if (!is_in_chain(mp->mp_payload)((mp->mp_payload) && ((msg_frg_t*)(mp->mp_payload ))->h_prev != ((void*)0))) { |
| 769 | insert(head, (msg_header_t *)mp->mp_payload)(((msg_header_t *)mp->mp_payload)->sh_common->h_succ = *(head), *(head) = ((msg_header_t *)mp->mp_payload), (( msg_header_t *)mp->mp_payload)->sh_common->h_prev = ( head), (head) = &((msg_header_t *)mp->mp_payload)-> sh_common->h_succ); |
| 770 | } else { |
| 771 | assert(h_succ == (msg_header_t *)mp->mp_payload)((void) sizeof ((h_succ == (msg_header_t *)mp->mp_payload) ? 1 : 0), __extension__ ({ if (h_succ == (msg_header_t *)mp-> mp_payload) ; else __assert_fail ("h_succ == (msg_header_t *)mp->mp_payload" , "msg_mime.c", 771, __extension__ __PRETTY_FUNCTION__); })); |
| 772 | mp->mp_payload->pl_common->h_prev = head; |
| 773 | *head = (msg_header_t *)mp->mp_payload; |
| 774 | head = &mp->mp_payload->pl_common->h_succ; |
| 775 | h_succ = *head; |
| 776 | } |
| 777 | |
| 778 | if (mp->mp_multipart) { |
| 779 | if ((*head = h_succ)) |
| 780 | h_succ->sh_prevsh_common->h_prev = head; |
| 781 | if (!(h = msg_multipart_serialize(head, mp->mp_multipart))) |
| 782 | return NULL((void*)0); |
| 783 | head = &h->sh_succsh_common->h_succ; h_succ = *head; |
| 784 | } |
| 785 | |
| 786 | if (mp->mp_close_delim) { |
| 787 | if (!is_in_chain(mp->mp_close_delim)((mp->mp_close_delim) && ((msg_frg_t*)(mp->mp_close_delim ))->h_prev != ((void*)0))) { |
| 788 | insert(head, (msg_header_t*)mp->mp_close_delim)(((msg_header_t*)mp->mp_close_delim)->sh_common->h_succ = *(head), *(head) = ((msg_header_t*)mp->mp_close_delim), ((msg_header_t*)mp->mp_close_delim)->sh_common->h_prev = (head), (head) = &((msg_header_t*)mp->mp_close_delim )->sh_common->h_succ); |
| 789 | } else { |
| 790 | assert(h_succ == (msg_header_t *)mp->mp_close_delim)((void) sizeof ((h_succ == (msg_header_t *)mp->mp_close_delim ) ? 1 : 0), __extension__ ({ if (h_succ == (msg_header_t *)mp ->mp_close_delim) ; else __assert_fail ("h_succ == (msg_header_t *)mp->mp_close_delim" , "msg_mime.c", 790, __extension__ __PRETTY_FUNCTION__); })); |
| 791 | mp->mp_close_delim->pl_common->h_prev = head; |
| 792 | *head = (msg_header_t *)mp->mp_close_delim; |
| 793 | head = &mp->mp_close_delim->pl_common->h_succ; |
| 794 | } |
| 795 | |
| 796 | if (h_succ_all) |
| 797 | *head = h_succ_all, h_succ_all->sh_prevsh_common->h_prev = head; |
| 798 | |
| 799 | return (msg_header_t *)mp->mp_close_delim; |
| 800 | } |
| 801 | |
| 802 | *head = h_succ; |
| 803 | |
| 804 | head0 = head; |
| 805 | } |
| 806 | |
| 807 | assert(!mp)((void) sizeof ((!mp) ? 1 : 0), __extension__ ({ if (!mp) ; else __assert_fail ("!mp", "msg_mime.c", 807, __extension__ __PRETTY_FUNCTION__ ); })); |
| 808 | |
| 809 | return NULL((void*)0); |
| 810 | } |
| 811 | |
| 812 | /** Encode a multipart. |
| 813 | * |
| 814 | * @return The size of multipart in bytes, or -1 upon an error. |
| 815 | */ |
| 816 | issize_t msg_multipart_prepare(msg_t *msg, msg_multipart_t *mp, int flags) |
| 817 | { |
| 818 | if (!mp || !mp->mp_data) |
| 819 | return -1; |
| 820 | |
| 821 | if (!mp->mp_common->h_data || |
| 822 | mp->mp_common->h_len != mp->mp_len - 2 || |
| 823 | memcmp(mp->mp_common->h_data, mp->mp_data + 2, mp->mp_len - 2)) { |
| 824 | mp->mp_common->h_data = mp->mp_data + 2; |
| 825 | mp->mp_common->h_len = mp->mp_len - 2; |
| 826 | } |
| 827 | |
| 828 | return msg_headers_prepare(msg, (msg_header_t *)mp, flags); |
| 829 | } |
| 830 | |
| 831 | /** Decode a multipart. */ |
| 832 | issize_t msg_multipart_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 833 | { |
| 834 | su_home_t tmphome[1] = { SU_HOME_INIT(tmphome){ 0, ((void*)0), ((void*)0) } }; |
| 835 | msg_payload_t pl[1]; |
| 836 | msg_multipart_t *mp, *result; |
| 837 | |
| 838 | assert(h && msg_is_multipart(h))((void) sizeof ((h && msg_is_multipart(h)) ? 1 : 0), __extension__ ({ if (h && msg_is_multipart(h)) ; else __assert_fail ("h && msg_is_multipart(h)", "msg_mime.c", 838, __extension__ __PRETTY_FUNCTION__); })); |
| 839 | |
| 840 | msg_payload_init(pl); |
| 841 | |
| 842 | result = (msg_multipart_t *)h; |
| 843 | |
| 844 | pl->pl_data = s; |
| 845 | pl->pl_len = slen; |
| 846 | |
| 847 | mp = msg_multipart_parse(tmphome, NULL((void*)0), pl); |
| 848 | |
| 849 | if (mp) { |
| 850 | *result = *mp; |
| 851 | |
| 852 | if (result->mp_common->h_succ->sh_prevsh_common->h_prev) |
| 853 | result->mp_common->h_succ->sh_prevsh_common->h_prev = |
| 854 | &result->mp_common->h_succ; |
| 855 | |
| 856 | su_free(tmphome, mp); |
| 857 | |
| 858 | su_home_move(home, tmphome); |
| 859 | } |
| 860 | |
| 861 | su_home_deinit(tmphome); |
| 862 | |
| 863 | return mp ? 0 : -1; |
| 864 | } |
| 865 | |
| 866 | /** Encode a multipart. |
| 867 | * |
| 868 | * Please note that here we just encode a element, the msg_multipart_t |
| 869 | * itself. |
| 870 | */ |
| 871 | issize_t msg_multipart_e(char b[], isize_t bsiz, msg_header_t const *h, int flags) |
| 872 | { |
| 873 | return msg_payload_e(b, bsiz, h, flags); |
| 874 | } |
| 875 | |
| 876 | /** Calculate extra size of a multipart */ |
| 877 | isize_t msg_multipart_dup_xtra(msg_header_t const *h, isize_t offset) |
| 878 | { |
| 879 | msg_multipart_t const *mp = (msg_multipart_t *)h; |
| 880 | msg_header_t const * const *hh; |
| 881 | |
| 882 | offset = msg_payload_dup_xtra(h, offset); |
| 883 | |
| 884 | for (hh = (msg_header_t const **)&((msg_pub_t *)mp)->msg_request; |
| 885 | (char *)hh <= (char *)&mp->mp_close_delim; |
| 886 | hh++) { |
| 887 | for (h = *hh; h; h = h->sh_nextsh_header_next->shn_next) { |
| 888 | MSG_STRUCT_SIZE_ALIGN(offset)((offset) = (((uintptr_t)(offset) + (sizeof(void *)) - 1) & (0 - (uintptr_t)(sizeof(void *))))); |
| 889 | offset = h->sh_classsh_common->h_class->hc_dxtra(h, offset + h->sh_classsh_common->h_class->hc_size); |
| 890 | } |
| 891 | } |
| 892 | |
| 893 | return offset; |
| 894 | } |
| 895 | |
| 896 | /** Duplicate one msg_multipart_t object */ |
| 897 | char *msg_multipart_dup_one(msg_header_t *dst, msg_header_t const *src, |
| 898 | char *b, isize_t xtra) |
| 899 | { |
| 900 | msg_multipart_t const *mp = (msg_multipart_t *)src; |
| 901 | msg_header_t *h, **hh; |
| 902 | char *end = b + xtra; |
| 903 | |
| 904 | b = msg_payload_dup_one(dst, src, b, xtra); |
| 905 | |
| 906 | for (hh = &((msg_pub_t*)mp)->msg_request; |
| 907 | (char *)hh <= (char *)&mp->mp_close_delim; |
| 908 | hh++) { |
| 909 | for (h = *hh; h; h = h->sh_nextsh_header_next->shn_next) { |
| 910 | MSG_STRUCT_ALIGN(b)((b) = (void*)(((uintptr_t)(b) + (sizeof(void *)) - 1) & ( 0 - (uintptr_t)(sizeof(void *))))); |
| 911 | dst = (msg_header_t *)b; |
| 912 | memset(dst, 0, sizeof dst->sh_common); |
| 913 | dst->sh_classsh_common->h_class = h->sh_classsh_common->h_class; |
| 914 | b = h->sh_classsh_common->h_class->hc_dup_one(dst, h, b + h->sh_classsh_common->h_class->hc_size, end - b); |
| 915 | if (h->sh_classsh_common->h_class->hc_update) |
| 916 | msg_header_update_params(h->sh_common, 0); |
| 917 | assert(b <= end)((void) sizeof ((b <= end) ? 1 : 0), __extension__ ({ if ( b <= end) ; else __assert_fail ("b <= end", "msg_mime.c" , 917, __extension__ __PRETTY_FUNCTION__); })); |
| 918 | } |
| 919 | } |
| 920 | |
| 921 | return b; |
| 922 | } |
| 923 | |
| 924 | #if 0 |
| 925 | msg_hclass_t msg_multipart_class((msg_hclass_t *)msg_multipart_mclass)[] = |
| 926 | MSG_HEADER_CLASS(msg_, multipart, NULL, "", mp_common, append, msg_multipart); |
| 927 | #endif |
| 928 | |
| 929 | /**Calculate Q value. |
| 930 | * |
| 931 | * The function msg_q_value() converts q-value string @a q to numeric value |
| 932 | * in range (0..1000). Q values are used, for instance, to describe |
| 933 | * relative priorities of registered contacts. |
| 934 | * |
| 935 | * @param q q-value string ("1" | "." 1,3DIGIT) |
| 936 | * |
| 937 | * @return |
| 938 | * The function msg_q_value() returns an integer in range 0 .. 1000. |
| 939 | */ |
| 940 | unsigned msg_q_value(char const *q) |
| 941 | { |
| 942 | unsigned value = 0; |
| 943 | |
| 944 | if (!q) |
| 945 | return 500; |
| 946 | if (q[0] != '0' && q[0] != '.' && q[0] != '1') |
| 947 | return 500; |
| 948 | while (q[0] == '0') |
| 949 | q++; |
| 950 | if (q[0] >= '1' && q[0] <= '9') |
| 951 | return 1000; |
| 952 | if (q[0] == '\0') |
| 953 | return 0; |
| 954 | if (q[0] != '.') |
| 955 | /* Garbage... */ |
| 956 | return 500; |
| 957 | |
| 958 | if (q[1] >= '0' && q[1] <= '9') { |
| 959 | value = (q[1] - '0') * 100; |
| 960 | if (q[2] >= '0' && q[2] <= '9') { |
| 961 | value += (q[2] - '0') * 10; |
| 962 | if (q[3] >= '0' && q[3] <= '9') { |
| 963 | value += (q[3] - '0'); |
| 964 | if (q[4] > '5' && q[4] <= '9') |
| 965 | /* Round upwards */ |
| 966 | value += 1; |
| 967 | else if (q[4] == '5') |
| 968 | value += value & 1; /* Round to even */ |
| 969 | } |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | return value; |
| 974 | } |
| 975 | |
| 976 | /** Parse media type (type/subtype). |
| 977 | * |
| 978 | * The function msg_mediatype_d() parses a mediatype string. |
| 979 | * |
| 980 | * @param[in,out] ss string to be parsed |
| 981 | * @param[out] type value result for media type |
| 982 | * |
| 983 | * @retval 0 when successful, |
| 984 | * @retval -1 upon an error. |
| 985 | */ |
| 986 | issize_t msg_mediatype_d(char **ss, char const **type) |
| 987 | { |
| 988 | char *s = *ss; |
| 989 | char const *result = s; |
| 990 | size_t l1 = 0, l2 = 0, n; |
| 991 | |
| 992 | /* Media type consists of two tokens, separated by / */ |
| 993 | |
| 994 | l1 = span_token(s); |
| 995 | for (n = l1; IS_LWS(s[n])((s[n]) == ' ' || (s[n]) == '\t' || (s[n]) == '\r' || (s[n]) == '\n'); n++) |
| 996 | {} |
| 997 | if (s[n] == '/') { |
| 998 | for (n++; IS_LWS(s[n])((s[n]) == ' ' || (s[n]) == '\t' || (s[n]) == '\r' || (s[n]) == '\n'); n++) |
| 999 | {} |
| 1000 | l2 = span_token(s + n); |
| 1001 | n += l2; |
| 1002 | } |
| 1003 | |
| 1004 | if (l1 == 0 || l2 == 0) |
| 1005 | return -1; |
| 1006 | |
| 1007 | /* If there is extra ws between tokens, compact version */ |
| 1008 | if (n > l1 + 1 + l2) { |
| 1009 | s[l1] = '/'; |
| 1010 | memmove(s + l1 + 1, s + n - l2, l2); |
| 1011 | s[l1 + 1 + l2] = 0; |
| 1012 | } |
| 1013 | |
| 1014 | s += n; |
| 1015 | |
| 1016 | while (IS_WS(*s)((*s) == ' ' || (*s) == '\t')) *s++ = '\0'; |
| 1017 | |
| 1018 | *ss = s; |
| 1019 | |
| 1020 | if (type) |
| 1021 | *type = result; |
| 1022 | |
| 1023 | return 0; |
| 1024 | } |
| 1025 | |
| 1026 | /* ====================================================================== */ |
| 1027 | |
| 1028 | /**@ingroup msg_mime |
| 1029 | * @defgroup msg_accept Accept Header |
| 1030 | * |
| 1031 | * The @b Accept request-header field can be used to specify certain media |
| 1032 | * types which are acceptable for the response. Its syntax is defined in |
| 1033 | * [H14.1, S20.1] as follows: |
| 1034 | * |
| 1035 | * @code |
| 1036 | * Accept = "Accept" ":" #( media-range [ accept-params ] ) |
| 1037 | * |
| 1038 | * media-range = ( "*" "/" "*" |
| 1039 | * | ( type "/" "*" ) |
| 1040 | * | ( type "/" subtype ) ) *( ";" parameter ) |
| 1041 | * |
| 1042 | * accept-params = ";" "q" "=" qvalue *( accept-extension ) |
| 1043 | * |
| 1044 | * accept-extension = ";" token [ "=" ( token | quoted-string ) ] |
| 1045 | * @endcode |
| 1046 | * |
| 1047 | */ |
| 1048 | |
| 1049 | /**@ingroup msg_accept |
| 1050 | * @typedef typedef struct msg_accept_s msg_accept_t; |
| 1051 | * |
| 1052 | * The structure msg_accept_t contains representation of an @b Accept |
| 1053 | * header. |
| 1054 | * |
| 1055 | * The msg_accept_t is defined as follows: |
| 1056 | * @code |
| 1057 | * typedef struct msg_accept_s { |
| 1058 | * msg_common_t ac_common[1]; // Common fragment info |
| 1059 | * msg_accept_t *ac_next; // Pointer to next Accept header |
| 1060 | * char const *ac_type; // Pointer to type/subtype |
| 1061 | * char const *ac_subtype; // Points after first slash in type |
| 1062 | * msg_param_t const *ac_params; // List of parameters |
| 1063 | * msg_param_t ac_q; // Value of q parameter |
| 1064 | * } msg_accept_t; |
| 1065 | * @endcode |
| 1066 | */ |
| 1067 | |
| 1068 | msg_hclass_t msg_accept_class[] = |
| 1069 | MSG_HEADER_CLASS(msg_, accept, "Accept", "", ac_params, apndlist,{{ msg_accept_hash, msg_accept_d, msg_accept_e, msg_accept_dup_xtra , msg_accept_dup_one, msg_accept_update, "Accept", sizeof("Accept" ) - 1, "", (((uintptr_t)(sizeof(msg_accept_t)) + (sizeof(void *)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_accept_t, ac_params), msg_kind_apndlist, }} |
| 1070 | msg_accept, msg_accept){{ msg_accept_hash, msg_accept_d, msg_accept_e, msg_accept_dup_xtra , msg_accept_dup_one, msg_accept_update, "Accept", sizeof("Accept" ) - 1, "", (((uintptr_t)(sizeof(msg_accept_t)) + (sizeof(void *)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_accept_t, ac_params), msg_kind_apndlist, }}; |
| 1071 | |
| 1072 | issize_t msg_accept_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1073 | { |
| 1074 | msg_accept_t *ac; |
| 1075 | |
| 1076 | for(;;) { |
| 1077 | ac = (msg_accept_t *)h; |
| 1078 | |
| 1079 | while (*s == ',') /* Ignore empty entries (comma-whitespace) */ |
| 1080 | *s = '\0', s += span_lws(s + 1) + 1; |
| 1081 | |
| 1082 | if (*s == '\0') { |
| 1083 | /* Empty Accept list is not an error */ |
| 1084 | ac->ac_type = ac->ac_subtype = ""; |
| 1085 | return 0; |
| 1086 | } |
| 1087 | |
| 1088 | /* "Accept:" #(type/subtyp ; *(parameters))) */ |
| 1089 | if (msg_mediatype_d(&s, &ac->ac_type) == -1) |
| 1090 | return -1; |
| 1091 | if (!(ac->ac_subtype = strchr(ac->ac_type, '/'))) |
| 1092 | return -1; |
| 1093 | ac->ac_subtype++; |
| 1094 | |
| 1095 | if (*s == ';' && msg_params_d(home, &s, &ac->ac_params) == -1) |
| 1096 | return -1; |
| 1097 | |
| 1098 | msg_parse_next_field_without_recursion(){ msg_header_t *prev = h; msg_hclass_t *hc = prev->sh_common ->h_class; char *end = s + slen; if (*s && *s != ',' ) return -1; if (msg_header_update_params(prev->sh_common, 0) < 0) return -1; while (*s == ',') *s = '\0', s += span_lws (s + 1) + 1; if (*s == 0) return 0; h = msg_header_alloc(home , hc, 0); if (!h) return -1; prev->sh_common->h_succ = h , h->sh_common->h_prev = &prev->sh_common->h_succ ; prev->sh_header_next->shn_next = h; slen = end - s; }; |
| 1099 | } |
| 1100 | |
| 1101 | } |
| 1102 | |
| 1103 | issize_t msg_accept_e(char b[], isize_t bsiz, msg_header_t const *h, int flags) |
| 1104 | { |
| 1105 | char *b0 = b, *end = b + bsiz; |
| 1106 | msg_accept_t const *ac = (msg_accept_t *)h; |
| 1107 | |
| 1108 | assert(msg_is_accept(h))((void) sizeof ((msg_is_accept(h)) ? 1 : 0), __extension__ ({ if (msg_is_accept(h)) ; else __assert_fail ("msg_is_accept(h)" , "msg_mime.c", 1108, __extension__ __PRETTY_FUNCTION__); })); |
| 1109 | |
| 1110 | if (ac->ac_type) { |
| 1111 | MSG_STRING_E(b, end, ac->ac_type)do { size_t _n = strlen(ac->ac_type); if (b + _n+1 < end ) memcpy(b, ac->ac_type, _n+1); b+= _n; } while(0); |
| 1112 | MSG_PARAMS_E(b, end, ac->ac_params, flags)(b) += msg_params_e((b), (size_t)((b) < (end) ? (end) - (b ) : 0), (ac->ac_params)); |
| 1113 | } |
| 1114 | MSG_TERM_E(b, end)((b) < (end) ? (b)[0] = '\0' : '\0'); |
| 1115 | |
| 1116 | return b - b0; |
| 1117 | } |
| 1118 | |
| 1119 | isize_t msg_accept_dup_xtra(msg_header_t const *h, isize_t offset) |
| 1120 | { |
| 1121 | msg_accept_t const *ac = (msg_accept_t *)h; |
| 1122 | |
| 1123 | if (ac->ac_type) { |
| 1124 | MSG_PARAMS_SIZE(offset, ac->ac_params)(offset = msg_params_dup_xtra(ac->ac_params, offset)); |
| 1125 | offset += MSG_STRING_SIZE(ac->ac_type)((ac->ac_type) ? (strlen(ac->ac_type) + 1) : 0); |
| 1126 | } |
| 1127 | |
| 1128 | return offset; |
| 1129 | } |
| 1130 | |
| 1131 | /** Duplicate one msg_accept_t object */ |
| 1132 | char *msg_accept_dup_one(msg_header_t *dst, msg_header_t const *src, |
| 1133 | char *b, isize_t xtra) |
| 1134 | { |
| 1135 | msg_accept_t *ac = (msg_accept_t *)dst; |
| 1136 | msg_accept_t const *o = (msg_accept_t *)src; |
| 1137 | char *end = b + xtra; |
| 1138 | |
| 1139 | if (o->ac_type) { |
| 1140 | b = msg_params_dup(&ac->ac_params, o->ac_params, b, xtra); |
| 1141 | MSG_STRING_DUP(b, ac->ac_type, o->ac_type)(void)((o->ac_type)?((b)=(char*)memccpy((void *)((ac->ac_type )=(char*)b),(o->ac_type),0,2147483647)) :((ac->ac_type) =((void*)0))); |
| 1142 | if ((ac->ac_subtype = strchr(ac->ac_type, '/'))) |
| 1143 | ac->ac_subtype++; |
| 1144 | } |
| 1145 | |
| 1146 | assert(b <= end)((void) sizeof ((b <= end) ? 1 : 0), __extension__ ({ if ( b <= end) ; else __assert_fail ("b <= end", "msg_mime.c" , 1146, __extension__ __PRETTY_FUNCTION__); })); (void)end; |
| 1147 | |
| 1148 | return b; |
| 1149 | } |
| 1150 | |
| 1151 | /** Update parameter(s) for Accept header. */ |
| 1152 | int msg_accept_update(msg_common_t *h, |
| 1153 | char const *name, isize_t namelen, |
| 1154 | char const *value) |
| 1155 | { |
| 1156 | msg_accept_t *ac = (msg_accept_t *)h; |
| 1157 | |
| 1158 | if (name == NULL((void*)0)) { |
| 1159 | ac->ac_q = NULL((void*)0); |
| 1160 | } |
| 1161 | else if (namelen == 1 && su_casenmatch(name, "q", 1)) { |
| 1162 | /* XXX - check for invalid value? */ |
| 1163 | ac->ac_q = value; |
| 1164 | } |
| 1165 | |
| 1166 | return 0; |
| 1167 | } |
| 1168 | |
| 1169 | /* ====================================================================== */ |
| 1170 | |
| 1171 | /** Decode an Accept-* header. */ |
| 1172 | issize_t msg_accept_any_d(su_home_t *home, |
| 1173 | msg_header_t *h, |
| 1174 | char *s, isize_t slen) |
| 1175 | { |
| 1176 | /** @relatesalso msg_accept_any_s */ |
| 1177 | msg_accept_any_t *aa; |
| 1178 | |
| 1179 | for(;;) { |
| 1180 | aa = (msg_accept_any_t *)h; |
| 1181 | while (*s == ',') /* Ignore empty entries (comma-whitespace) */ |
| 1182 | *s = '\0', s += span_lws(s + 1) + 1; |
| 1183 | |
| 1184 | if (*s == '\0') |
| 1185 | return -2; /* Empty list */ |
| 1186 | |
| 1187 | /* "Accept-*:" 1#(token *(SEMI accept-param)) */ |
| 1188 | if (msg_token_d(&s, &aa->aa_value) == -1) |
| 1189 | return -1; |
| 1190 | |
| 1191 | if (*s == ';' && msg_params_d(home, &s, &aa->aa_params) == -1) |
| 1192 | return -1; |
| 1193 | |
| 1194 | msg_parse_next_field_without_recursion(){ msg_header_t *prev = h; msg_hclass_t *hc = prev->sh_common ->h_class; char *end = s + slen; if (*s && *s != ',' ) return -1; if (msg_header_update_params(prev->sh_common, 0) < 0) return -1; while (*s == ',') *s = '\0', s += span_lws (s + 1) + 1; if (*s == 0) return 0; h = msg_header_alloc(home , hc, 0); if (!h) return -1; prev->sh_common->h_succ = h , h->sh_common->h_prev = &prev->sh_common->h_succ ; prev->sh_header_next->shn_next = h; slen = end - s; }; |
| 1195 | } |
| 1196 | |
| 1197 | } |
| 1198 | |
| 1199 | /** Encode an Accept-* header field. */ |
| 1200 | issize_t msg_accept_any_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1201 | { |
| 1202 | /** @relatesalso msg_accept_any_s */ |
| 1203 | char *b0 = b, *end = b + bsiz; |
| 1204 | msg_accept_any_t const *aa = (msg_accept_any_t *)h; |
| 1205 | |
| 1206 | MSG_STRING_E(b, end, aa->aa_value)do { size_t _n = strlen(aa->aa_value); if (b + _n+1 < end ) memcpy(b, aa->aa_value, _n+1); b+= _n; } while(0); |
| 1207 | MSG_PARAMS_E(b, end, aa->aa_params, flags)(b) += msg_params_e((b), (size_t)((b) < (end) ? (end) - (b ) : 0), (aa->aa_params)); |
| 1208 | MSG_TERM_E(b, end)((b) < (end) ? (b)[0] = '\0' : '\0'); |
| 1209 | |
| 1210 | return b - b0; |
| 1211 | } |
| 1212 | |
| 1213 | /** Calculate extra memory used by accept-* headers. */ |
| 1214 | isize_t msg_accept_any_dup_xtra(msg_header_t const *h, isize_t offset) |
| 1215 | { |
| 1216 | /** @relatesalso msg_accept_any_s */ |
| 1217 | msg_accept_any_t const *aa = (msg_accept_any_t *)h; |
| 1218 | |
| 1219 | MSG_PARAMS_SIZE(offset, aa->aa_params)(offset = msg_params_dup_xtra(aa->aa_params, offset)); |
| 1220 | offset += MSG_STRING_SIZE(aa->aa_value)((aa->aa_value) ? (strlen(aa->aa_value) + 1) : 0); |
| 1221 | |
| 1222 | return offset; |
| 1223 | } |
| 1224 | |
| 1225 | /** Duplicate one msg_accept_any_t object. */ |
| 1226 | char *msg_accept_any_dup_one(msg_header_t *dst, msg_header_t const *src, |
| 1227 | char *b, isize_t xtra) |
| 1228 | { |
| 1229 | /** @relatesalso msg_accept_any_s */ |
| 1230 | msg_accept_any_t *aa = (msg_accept_any_t *)dst; |
| 1231 | msg_accept_any_t const *o = (msg_accept_any_t *)src; |
| 1232 | char *end = b + xtra; |
| 1233 | |
| 1234 | b = msg_params_dup(&aa->aa_params, o->aa_params, b, xtra); |
| 1235 | MSG_STRING_DUP(b, aa->aa_value, o->aa_value)(void)((o->aa_value)?((b)=(char*)memccpy((void *)((aa-> aa_value)=(char*)b),(o->aa_value),0,2147483647)) :((aa-> aa_value)=((void*)0))); |
| 1236 | |
| 1237 | assert(b <= end)((void) sizeof ((b <= end) ? 1 : 0), __extension__ ({ if ( b <= end) ; else __assert_fail ("b <= end", "msg_mime.c" , 1237, __extension__ __PRETTY_FUNCTION__); })); (void)end; |
| 1238 | |
| 1239 | return b; |
| 1240 | } |
| 1241 | |
| 1242 | /** Update parameter(s) for Accept-* header. */ |
| 1243 | int msg_accept_any_update(msg_common_t *h, |
| 1244 | char const *name, isize_t namelen, |
| 1245 | char const *value) |
| 1246 | { |
| 1247 | msg_accept_any_t *aa = (msg_accept_any_t *)h; |
| 1248 | |
| 1249 | if (name == NULL((void*)0)) { |
| 1250 | aa->aa_q = NULL((void*)0); |
| 1251 | } |
| 1252 | else if (namelen == 1 && su_casenmatch(name, "q", 1)) { |
| 1253 | aa->aa_q = value; |
| 1254 | } |
| 1255 | |
| 1256 | return 0; |
| 1257 | } |
| 1258 | |
| 1259 | /* ====================================================================== */ |
| 1260 | |
| 1261 | /**@ingroup msg_mime |
| 1262 | * @defgroup msg_accept_charset Accept-Charset Header |
| 1263 | * |
| 1264 | * The Accept-Charset header is similar to Accept, but restricts the |
| 1265 | * character set that are acceptable in the response. Its syntax is |
| 1266 | * defined in [H14.2] as follows: |
| 1267 | * |
| 1268 | * @code |
| 1269 | * Accept-Charset = "Accept-Charset" ":" |
| 1270 | * 1#( ( charset | "*" )[ ";" "q" "=" qvalue ] ) |
| 1271 | * @endcode |
| 1272 | * |
| 1273 | */ |
| 1274 | |
| 1275 | /**@ingroup msg_accept_charset |
| 1276 | * @typedef typedef struct msg_accept_charset_s msg_accept_charset_t; |
| 1277 | * |
| 1278 | * The structure msg_accept_encoding_t contains representation of @b |
| 1279 | * Accept-Charset header. |
| 1280 | * |
| 1281 | * The msg_accept_charset_t is defined as follows: |
| 1282 | * @code |
| 1283 | * typedef struct { |
| 1284 | * msg_common_t aa_common[1]; // Common fragment info |
| 1285 | * msg_accept_any_t *aa_next; // Pointer to next Accept-Charset |
| 1286 | * char const *aa_value; // Charset |
| 1287 | * msg_param_t const *aa_params; // Parameter list |
| 1288 | * char const *aa_q; // Q-value |
| 1289 | * } msg_accept_charset_t; |
| 1290 | * @endcode |
| 1291 | */ |
| 1292 | |
| 1293 | msg_hclass_t msg_accept_charset_class[1] = |
| 1294 | MSG_HEADER_CLASS(msg_, accept_charset, "Accept-Charset", "",{{ msg_accept_charset_hash, msg_accept_charset_d, msg_accept_charset_e , msg_accept_any_dup_xtra, msg_accept_any_dup_one, msg_accept_any_update , "Accept-Charset", sizeof("Accept-Charset") - 1, "", (((uintptr_t )(sizeof(msg_accept_charset_t)) + (sizeof(void*)) - 1) & ( 0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_accept_charset_t , aa_params), msg_kind_apndlist, }} |
| 1295 | aa_params, apndlist, msg_accept_any, msg_accept_any){{ msg_accept_charset_hash, msg_accept_charset_d, msg_accept_charset_e , msg_accept_any_dup_xtra, msg_accept_any_dup_one, msg_accept_any_update , "Accept-Charset", sizeof("Accept-Charset") - 1, "", (((uintptr_t )(sizeof(msg_accept_charset_t)) + (sizeof(void*)) - 1) & ( 0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_accept_charset_t , aa_params), msg_kind_apndlist, }}; |
| 1296 | |
| 1297 | issize_t msg_accept_charset_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1298 | { |
| 1299 | return msg_accept_any_d(home, h, s, slen); |
| 1300 | } |
| 1301 | |
| 1302 | issize_t msg_accept_charset_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1303 | { |
| 1304 | assert(msg_is_accept_charset(h))((void) sizeof ((msg_is_accept_charset(h)) ? 1 : 0), __extension__ ({ if (msg_is_accept_charset(h)) ; else __assert_fail ("msg_is_accept_charset(h)" , "msg_mime.c", 1304, __extension__ __PRETTY_FUNCTION__); })); |
| 1305 | return msg_accept_any_e(b, bsiz, h, f); |
| 1306 | } |
| 1307 | |
| 1308 | /* ====================================================================== */ |
| 1309 | |
| 1310 | /**@ingroup msg_mime |
| 1311 | * @defgroup msg_accept_encoding Accept-Encoding Header |
| 1312 | * |
| 1313 | * The Accept-Encoding header is similar to Accept, but restricts the |
| 1314 | * content-codings that are acceptable in the response. Its syntax is |
| 1315 | * defined in [H14.3, S20.2] as follows: |
| 1316 | * |
| 1317 | * @code |
| 1318 | * Accept-Encoding = "Accept-Encoding" ":" |
| 1319 | * 1#( codings [ ";" "q" "=" qvalue ] ) |
| 1320 | * codings = ( content-coding | "*" ) |
| 1321 | * content-coding = token |
| 1322 | * @endcode |
| 1323 | * |
| 1324 | */ |
| 1325 | |
| 1326 | /**@ingroup msg_accept_encoding |
| 1327 | * @typedef typedef struct msg_accept_encoding_s msg_accept_encoding_t; |
| 1328 | * |
| 1329 | * The structure msg_accept_encoding_t contains representation of @b |
| 1330 | * Accept-Encoding header. |
| 1331 | * |
| 1332 | * The msg_accept_encoding_t is defined as follows: |
| 1333 | * @code |
| 1334 | * typedef struct { |
| 1335 | * msg_common_t aa_common[1]; // Common fragment info |
| 1336 | * msg_accept_any_t *aa_next; // Pointer to next Accept-Encoding |
| 1337 | * char const *aa_value; // Content-coding |
| 1338 | * msg_param_t const *aa_params; // Parameter list |
| 1339 | * char const *aa_q; // Q-value |
| 1340 | * } msg_accept_encoding_t; |
| 1341 | * @endcode |
| 1342 | */ |
| 1343 | |
| 1344 | msg_hclass_t msg_accept_encoding_class[1] = |
| 1345 | MSG_HEADER_CLASS(msg_, accept_encoding, "Accept-Encoding", "",{{ msg_accept_encoding_hash, msg_accept_encoding_d, msg_accept_encoding_e , msg_accept_any_dup_xtra, msg_accept_any_dup_one, msg_accept_any_update , "Accept-Encoding", sizeof("Accept-Encoding") - 1, "", (((uintptr_t )(sizeof(msg_accept_encoding_t)) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_accept_encoding_t , aa_params), msg_kind_apndlist, }} |
| 1346 | aa_params, apndlist, msg_accept_any, msg_accept_any){{ msg_accept_encoding_hash, msg_accept_encoding_d, msg_accept_encoding_e , msg_accept_any_dup_xtra, msg_accept_any_dup_one, msg_accept_any_update , "Accept-Encoding", sizeof("Accept-Encoding") - 1, "", (((uintptr_t )(sizeof(msg_accept_encoding_t)) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_accept_encoding_t , aa_params), msg_kind_apndlist, }}; |
| 1347 | |
| 1348 | issize_t msg_accept_encoding_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1349 | { |
| 1350 | return msg_accept_any_d(home, h, s, slen); |
| 1351 | } |
| 1352 | |
| 1353 | issize_t msg_accept_encoding_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1354 | { |
| 1355 | return msg_accept_any_e(b, bsiz, h, f); |
| 1356 | } |
| 1357 | |
| 1358 | /* ====================================================================== */ |
| 1359 | |
| 1360 | /**@ingroup msg_mime |
| 1361 | * @defgroup msg_accept_language Accept-Language Header |
| 1362 | * |
| 1363 | * The Accept-Language header allows the client to indicate to the server in |
| 1364 | * which language it would prefer to receive reason phrases, session |
| 1365 | * descriptions or status responses carried as message bodies. Its syntax is |
| 1366 | * defined in [H14.4, S20.3] as follows: |
| 1367 | * |
| 1368 | * @code |
| 1369 | * Accept-Language = "Accept-Language" ":" |
| 1370 | * 1#( language-range [ ";" "q" "=" qvalue ] ) |
| 1371 | * |
| 1372 | * language-range = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" ) |
| 1373 | * @endcode |
| 1374 | * |
| 1375 | */ |
| 1376 | |
| 1377 | /**@ingroup msg_accept_language |
| 1378 | * @typedef typedef struct msg_accept_language_s msg_accept_language_t; |
| 1379 | * |
| 1380 | * The structure msg_accept_language_t contains representation of @b |
| 1381 | * Accept-Language header. |
| 1382 | * |
| 1383 | * The msg_accept_language_t is defined as follows: |
| 1384 | * @code |
| 1385 | * typedef struct { |
| 1386 | * msg_common_t aa_common[1]; // Common fragment info |
| 1387 | * msg_accept_any_t *aa_next; // Pointer to next Accept-Encoding |
| 1388 | * char const *aa_value; // Language-range |
| 1389 | * msg_param_t const *aa_params; // Parameter list |
| 1390 | * char const *aa_q; // Q-value |
| 1391 | * } msg_accept_language_t; |
| 1392 | * @endcode |
| 1393 | */ |
| 1394 | |
| 1395 | msg_hclass_t msg_accept_language_class[1] = |
| 1396 | MSG_HEADER_CLASS(msg_, accept_language, "Accept-Language", "",{{ msg_accept_language_hash, msg_accept_language_d, msg_accept_language_e , msg_accept_any_dup_xtra, msg_accept_any_dup_one, msg_accept_any_update , "Accept-Language", sizeof("Accept-Language") - 1, "", (((uintptr_t )(sizeof(msg_accept_language_t)) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_accept_language_t , aa_params), msg_kind_apndlist, }} |
| 1397 | aa_params, apndlist, msg_accept_any, msg_accept_any){{ msg_accept_language_hash, msg_accept_language_d, msg_accept_language_e , msg_accept_any_dup_xtra, msg_accept_any_dup_one, msg_accept_any_update , "Accept-Language", sizeof("Accept-Language") - 1, "", (((uintptr_t )(sizeof(msg_accept_language_t)) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_accept_language_t , aa_params), msg_kind_apndlist, }}; |
| 1398 | |
| 1399 | issize_t msg_accept_language_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1400 | { |
| 1401 | return msg_accept_any_d(home, h, s, slen); |
| 1402 | } |
| 1403 | |
| 1404 | issize_t msg_accept_language_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1405 | { |
| 1406 | assert(msg_is_accept_language(h))((void) sizeof ((msg_is_accept_language(h)) ? 1 : 0), __extension__ ({ if (msg_is_accept_language(h)) ; else __assert_fail ("msg_is_accept_language(h)" , "msg_mime.c", 1406, __extension__ __PRETTY_FUNCTION__); })); |
| 1407 | return msg_accept_any_e(b, bsiz, h, f); |
| 1408 | } |
| 1409 | |
| 1410 | |
| 1411 | /* ====================================================================== */ |
| 1412 | |
| 1413 | /**@ingroup msg_mime |
| 1414 | * @defgroup msg_content_disposition Content-Disposition Header |
| 1415 | * |
| 1416 | * The Content-Disposition header field describes how the message body or, |
| 1417 | * in the case of multipart messages, a message body part is to be |
| 1418 | * interpreted by the UAC or UAS. Its syntax is defined in [S20.11] |
| 1419 | * as follows: |
| 1420 | * |
| 1421 | * @code |
| 1422 | * Content-Disposition = "Content-Disposition" ":" |
| 1423 | * disposition-type *( ";" disposition-param ) |
| 1424 | * disposition-type = "render" | "session" | "icon" | "alert" |
| 1425 | * | disp-extension-token |
| 1426 | * disposition-param = "handling" "=" |
| 1427 | * ( "optional" | "required" | other-handling ) |
| 1428 | * | generic-param |
| 1429 | * other-handling = token |
| 1430 | * disp-extension-token = token |
| 1431 | * @endcode |
| 1432 | * |
| 1433 | * The Content-Disposition header was extended by |
| 1434 | * draft-lennox-sip-reg-payload-01.txt section 3.1 as follows: |
| 1435 | * |
| 1436 | * @code |
| 1437 | * Content-Disposition = "Content-Disposition" ":" |
| 1438 | * disposition-type *( ";" disposition-param ) |
| 1439 | * disposition-type /= "script" | "sip-cgi" | token |
| 1440 | * disposition-param /= action-param |
| 1441 | * / modification-date-param |
| 1442 | * action-param = "action" "=" action-value |
| 1443 | * action-value = "store" | "remove" | token |
| 1444 | * modification-date-param = "modification-date" "=" quoted-date-time |
| 1445 | * quoted-date-time = <"> SIP-date <"> |
| 1446 | * @endcode |
| 1447 | */ |
| 1448 | |
| 1449 | /**@ingroup msg_content_disposition |
| 1450 | * @typedef struct msg_content_disposition_s msg_content_disposition_t; |
| 1451 | * |
| 1452 | * The structure msg_content_disposition_t contains representation of an @b |
| 1453 | * Content-Disposition header. |
| 1454 | * |
| 1455 | * The msg_content_disposition_t is defined as follows: |
| 1456 | * @code |
| 1457 | * typedef struct msg_content_disposition_s |
| 1458 | * { |
| 1459 | * msg_common_t cd_common[1]; // Common fragment info |
| 1460 | * msg_error_t *cd_next; // Link to next (dummy) |
| 1461 | * char const *cd_type; // Disposition type |
| 1462 | * msg_param_t const *cd_params; // List of parameters |
| 1463 | * msg_param_t cd_handling; // Value of @b handling parameter |
| 1464 | * unsigned cd_required:1; // True if handling=required |
| 1465 | * unsigned cd_optional:1; // True if handling=optional |
| 1466 | * } msg_content_disposition_t; |
| 1467 | * @endcode |
| 1468 | */ |
| 1469 | |
| 1470 | msg_hclass_t msg_content_disposition_class[] = |
| 1471 | MSG_HEADER_CLASS(msg_, content_disposition, "Content-Disposition", "",{{ msg_content_disposition_hash, msg_content_disposition_d, msg_content_disposition_e , msg_content_disposition_dup_xtra, msg_content_disposition_dup_one , msg_content_disposition_update, "Content-Disposition", sizeof ("Content-Disposition") - 1, "", (((uintptr_t)(sizeof(msg_content_disposition_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_content_disposition_t, cd_params ), msg_kind_single, }} |
| 1472 | cd_params, single, msg_content_disposition,{{ msg_content_disposition_hash, msg_content_disposition_d, msg_content_disposition_e , msg_content_disposition_dup_xtra, msg_content_disposition_dup_one , msg_content_disposition_update, "Content-Disposition", sizeof ("Content-Disposition") - 1, "", (((uintptr_t)(sizeof(msg_content_disposition_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_content_disposition_t, cd_params ), msg_kind_single, }} |
| 1473 | msg_content_disposition){{ msg_content_disposition_hash, msg_content_disposition_d, msg_content_disposition_e , msg_content_disposition_dup_xtra, msg_content_disposition_dup_one , msg_content_disposition_update, "Content-Disposition", sizeof ("Content-Disposition") - 1, "", (((uintptr_t)(sizeof(msg_content_disposition_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_content_disposition_t, cd_params ), msg_kind_single, }}; |
| 1474 | |
| 1475 | issize_t msg_content_disposition_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1476 | { |
| 1477 | msg_content_disposition_t *cd = (msg_content_disposition_t *)h; |
| 1478 | |
| 1479 | if (msg_token_d(&s, &cd->cd_type) < 0 || |
| 1480 | (*s == ';' && msg_params_d(home, &s, &cd->cd_params) < 0)) |
| 1481 | return -1; |
| 1482 | |
| 1483 | if (cd->cd_params) |
| 1484 | msg_header_update_params(cd->cd_common, 0); |
| 1485 | |
| 1486 | return 0; |
| 1487 | } |
| 1488 | |
| 1489 | issize_t msg_content_disposition_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1490 | { |
| 1491 | char *b0 = b, *end = b + bsiz; |
| 1492 | msg_content_disposition_t const *cd = (msg_content_disposition_t *)h; |
| 1493 | |
| 1494 | assert(msg_is_content_disposition(h))((void) sizeof ((msg_is_content_disposition(h)) ? 1 : 0), __extension__ ({ if (msg_is_content_disposition(h)) ; else __assert_fail ( "msg_is_content_disposition(h)", "msg_mime.c", 1494, __extension__ __PRETTY_FUNCTION__); })); |
| 1495 | |
| 1496 | MSG_STRING_E(b, end, cd->cd_type)do { size_t _n = strlen(cd->cd_type); if (b + _n+1 < end ) memcpy(b, cd->cd_type, _n+1); b+= _n; } while(0); |
| 1497 | MSG_PARAMS_E(b, end, cd->cd_params, f)(b) += msg_params_e((b), (size_t)((b) < (end) ? (end) - (b ) : 0), (cd->cd_params)); |
| 1498 | |
| 1499 | MSG_TERM_E(b, end)((b) < (end) ? (b)[0] = '\0' : '\0'); |
| 1500 | |
| 1501 | return b - b0; |
| 1502 | } |
| 1503 | |
| 1504 | isize_t msg_content_disposition_dup_xtra(msg_header_t const *h, isize_t offset) |
| 1505 | { |
| 1506 | msg_content_disposition_t const *cd = (msg_content_disposition_t *)h; |
| 1507 | |
| 1508 | MSG_PARAMS_SIZE(offset, cd->cd_params)(offset = msg_params_dup_xtra(cd->cd_params, offset)); |
| 1509 | offset += MSG_STRING_SIZE(cd->cd_type)((cd->cd_type) ? (strlen(cd->cd_type) + 1) : 0); |
| 1510 | |
| 1511 | return offset; |
| 1512 | } |
| 1513 | |
| 1514 | /** Duplicate one msg_content_disposition_t object */ |
| 1515 | char *msg_content_disposition_dup_one(msg_header_t *dst, |
| 1516 | msg_header_t const *src, |
| 1517 | char *b, isize_t xtra) |
| 1518 | { |
| 1519 | msg_content_disposition_t *cd = (msg_content_disposition_t *)dst; |
| 1520 | msg_content_disposition_t const *o = (msg_content_disposition_t *)src; |
| 1521 | char *end = b + xtra; |
| 1522 | |
| 1523 | b = msg_params_dup(&cd->cd_params, o->cd_params, b, xtra); |
| 1524 | MSG_STRING_DUP(b, cd->cd_type, o->cd_type)(void)((o->cd_type)?((b)=(char*)memccpy((void *)((cd->cd_type )=(char*)b),(o->cd_type),0,2147483647)) :((cd->cd_type) =((void*)0))); |
| 1525 | |
| 1526 | assert(b <= end)((void) sizeof ((b <= end) ? 1 : 0), __extension__ ({ if ( b <= end) ; else __assert_fail ("b <= end", "msg_mime.c" , 1526, __extension__ __PRETTY_FUNCTION__); })); (void)end; |
| 1527 | |
| 1528 | return b; |
| 1529 | } |
| 1530 | |
| 1531 | /** Update Content-Disposition parameters */ |
| 1532 | int msg_content_disposition_update(msg_common_t *h, |
| 1533 | char const *name, isize_t namelen, |
| 1534 | char const *value) |
| 1535 | { |
| 1536 | msg_content_disposition_t *cd = (msg_content_disposition_t *)h; |
| 1537 | |
| 1538 | if (name == NULL((void*)0)) { |
| 1539 | cd->cd_handling = NULL((void*)0), cd->cd_required = 0, cd->cd_optional = 0; |
| 1540 | } |
| 1541 | else if (namelen == strlen("handling") && |
| 1542 | su_casenmatch(name, "handling", namelen)) { |
| 1543 | cd->cd_handling = value; |
| 1544 | cd->cd_required = su_casematch(value, "required"); |
| 1545 | cd->cd_optional = su_casematch(value, "optional"); |
| 1546 | } |
| 1547 | |
| 1548 | return 0; |
| 1549 | } |
| 1550 | |
| 1551 | /* ====================================================================== */ |
| 1552 | |
| 1553 | /**@ingroup msg_mime |
| 1554 | * @defgroup msg_content_encoding Content-Encoding Header |
| 1555 | * |
| 1556 | * The Content-Encoding header indicates what additional content codings |
| 1557 | * have been applied to the entity-body. Its syntax is defined in [H14.11] |
| 1558 | * and [S20.12] as follows: |
| 1559 | * |
| 1560 | * @code |
| 1561 | * Content-Encoding = ( "Content-Encoding" / "e" ) ":" 1#content-coding |
| 1562 | * content-coding = token |
| 1563 | * @endcode |
| 1564 | */ |
| 1565 | |
| 1566 | /**@ingroup msg_content_encoding |
| 1567 | * @typedef struct msg_list_s msg_content_encoding_t; |
| 1568 | * |
| 1569 | * The structure msg_content_encoding_t contains representation of an @b |
| 1570 | * Content-Encoding header. |
| 1571 | * |
| 1572 | * The msg_content_encoding_t is defined as follows: |
| 1573 | * @code |
| 1574 | * typedef struct msg_list_s |
| 1575 | * { |
| 1576 | * msg_common_t k_common[1]; // Common fragment info |
| 1577 | * msg_list_t *k_next; // Link to next header |
| 1578 | * msg_param_t *k_items; // List of items |
| 1579 | * } msg_content_encoding_t; |
| 1580 | * @endcode |
| 1581 | */ |
| 1582 | |
| 1583 | msg_hclass_t msg_content_encoding_class[] = |
| 1584 | MSG_HEADER_CLASS_LIST(content_encoding, "Content-Encoding", "e", list){{ msg_content_encoding_hash, msg_content_encoding_d, msg_content_encoding_e , msg_list_dup_xtra, msg_list_dup_one, ((void*)0), "Content-Encoding" , sizeof("Content-Encoding") - 1, "e", (((uintptr_t)(sizeof(msg_content_encoding_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_content_encoding_t, k_items), msg_kind_list , }}; |
| 1585 | |
| 1586 | issize_t msg_content_encoding_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1587 | { |
| 1588 | msg_content_encoding_t *e = (msg_content_encoding_t *)h; |
| 1589 | return msg_commalist_d(home, &s, &e->k_items, msg_token_scan); |
| 1590 | } |
| 1591 | |
| 1592 | issize_t msg_content_encoding_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1593 | { |
| 1594 | assert(msg_is_content_encoding(h))((void) sizeof ((msg_is_content_encoding(h)) ? 1 : 0), __extension__ ({ if (msg_is_content_encoding(h)) ; else __assert_fail ("msg_is_content_encoding(h)" , "msg_mime.c", 1594, __extension__ __PRETTY_FUNCTION__); })); |
| 1595 | return msg_list_e(b, bsiz, h, f); |
| 1596 | } |
| 1597 | |
| 1598 | /* ====================================================================== */ |
| 1599 | |
| 1600 | /**@ingroup msg_mime |
| 1601 | * @defgroup msg_content_language Content-Language Header |
| 1602 | * |
| 1603 | * The Content-Language header describes the natural language(s) of the |
| 1604 | * intended audience for the enclosed message body. Note that this might not |
| 1605 | * be equivalent to all the languages used within the message-body. Its |
| 1606 | * syntax is defined in [H14.12, S20.13] as follows: |
| 1607 | * |
| 1608 | * @code |
| 1609 | * Content-Language = "Content-Language" ":" 1#language-tag |
| 1610 | * @endcode |
| 1611 | * or |
| 1612 | * @code |
| 1613 | * Content-Language = "Content-Language" HCOLON |
| 1614 | * language-tag *(COMMA language-tag) |
| 1615 | * language-tag = primary-tag *( "-" subtag ) |
| 1616 | * primary-tag = 1*8ALPHA |
| 1617 | * subtag = 1*8ALPHA |
| 1618 | * @endcode |
| 1619 | * |
| 1620 | */ |
| 1621 | |
| 1622 | /**@ingroup msg_content_language |
| 1623 | * @typedef typedef struct msg_content_language_s msg_content_language_t; |
| 1624 | * |
| 1625 | * The structure msg_content_language_t contains representation of @b |
| 1626 | * Content-Language header. |
| 1627 | * |
| 1628 | * The msg_content_language_t is defined as follows: |
| 1629 | * @code |
| 1630 | * typedef struct { |
| 1631 | * msg_common_t k_common[1]; // Common fragment info |
| 1632 | * msg_content_language_t *k_next; // (Content-Encoding header) |
| 1633 | * msg_param_t *k_items; // List of languages |
| 1634 | * } msg_content_language_t; |
| 1635 | * @endcode |
| 1636 | */ |
| 1637 | |
| 1638 | msg_hclass_t msg_content_language_class[] = |
| 1639 | MSG_HEADER_CLASS_LIST(content_language, "Content-Language", "", list){{ msg_content_language_hash, msg_content_language_d, msg_content_language_e , msg_list_dup_xtra, msg_list_dup_one, ((void*)0), "Content-Language" , sizeof("Content-Language") - 1, "", (((uintptr_t)(sizeof(msg_content_language_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_content_language_t, k_items), msg_kind_list , }}; |
| 1640 | |
| 1641 | issize_t msg_content_language_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1642 | { |
| 1643 | msg_content_language_t *k = (msg_content_language_t *)h; |
| 1644 | return msg_commalist_d(home, &s, &k->k_items, msg_token_scan); |
| 1645 | } |
| 1646 | |
| 1647 | issize_t msg_content_language_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1648 | { |
| 1649 | assert(msg_is_content_language(h))((void) sizeof ((msg_is_content_language(h)) ? 1 : 0), __extension__ ({ if (msg_is_content_language(h)) ; else __assert_fail ("msg_is_content_language(h)" , "msg_mime.c", 1649, __extension__ __PRETTY_FUNCTION__); })); |
| 1650 | return msg_list_e(b, bsiz, h, f); |
| 1651 | } |
| 1652 | |
| 1653 | /* ====================================================================== */ |
| 1654 | |
| 1655 | /**@ingroup msg_mime |
| 1656 | * @defgroup msg_content_length Content-Length Header |
| 1657 | * |
| 1658 | * The Content-Length header indicates the size of the message-body in |
| 1659 | * decimal number of octets. Its syntax is defined in [S10.18] as |
| 1660 | * follows: |
| 1661 | * |
| 1662 | * @code |
| 1663 | * Content-Length = ( "Content-Length" / "l" ) HCOLON 1*DIGIT |
| 1664 | * @endcode |
| 1665 | * |
| 1666 | */ |
| 1667 | |
| 1668 | /**@ingroup msg_content_length |
| 1669 | * @typedef typedef struct msg_content_length_s msg_content_length_t; |
| 1670 | * |
| 1671 | * The structure msg_content_length_t contains representation of a |
| 1672 | * Content-Length header. |
| 1673 | * |
| 1674 | * The msg_content_length_t is defined as follows: |
| 1675 | * @code |
| 1676 | * typedef struct msg_content_length_s { |
| 1677 | * msg_common_t l_common[1]; // Common fragment info |
| 1678 | * msg_error_t *l_next; // Link to next (dummy) |
| 1679 | * unsigned long l_length; // Numeric value |
| 1680 | * } msg_content_length_t; |
| 1681 | * @endcode |
| 1682 | */ |
| 1683 | |
| 1684 | #define msg_content_length_dmsg_numeric_d msg_numeric_d |
| 1685 | #define msg_content_length_emsg_numeric_e msg_numeric_e |
| 1686 | |
| 1687 | msg_hclass_t msg_content_length_class[] = |
| 1688 | MSG_HEADER_CLASS(msg_, content_length, "Content-Length", "l",{{ msg_content_length_hash, msg_numeric_d, msg_numeric_e, msg_default_dup_xtra , msg_default_dup_one, ((void*)0), "Content-Length", sizeof("Content-Length" ) - 1, "l", (((uintptr_t)(sizeof(msg_content_length_t)) + (sizeof (void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_content_length_t, l_common), msg_kind_single, 1, }} |
| 1689 | l_common, single_critical, msg_default, msg_generic){{ msg_content_length_hash, msg_numeric_d, msg_numeric_e, msg_default_dup_xtra , msg_default_dup_one, ((void*)0), "Content-Length", sizeof("Content-Length" ) - 1, "l", (((uintptr_t)(sizeof(msg_content_length_t)) + (sizeof (void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_content_length_t, l_common), msg_kind_single, 1, }}; |
| 1690 | |
| 1691 | /**@ingroup msg_content_length |
| 1692 | * Create a @b Content-Length header object. |
| 1693 | * |
| 1694 | * The function msg_content_length_create() creates a Content-Length |
| 1695 | * header object with the value @a n. The memory for the header is |
| 1696 | * allocated from the memory home @a home. |
| 1697 | * |
| 1698 | * @param home memory home |
| 1699 | * @param n payload size in bytes |
| 1700 | * |
| 1701 | * @return |
| 1702 | * The function msg_content_length_create() returns a pointer to newly |
| 1703 | * created @b Content-Length header object when successful or NULL upon |
| 1704 | * an error. |
| 1705 | */ |
| 1706 | msg_content_length_t *msg_content_length_create(su_home_t *home, uint32_t n) |
| 1707 | { |
| 1708 | msg_content_length_t *l = (msg_content_length_t *) |
| 1709 | msg_header_alloc(home, msg_content_length_class, 0); |
| 1710 | |
| 1711 | if (l) |
| 1712 | l->l_length = n; |
| 1713 | |
| 1714 | return l; |
| 1715 | } |
| 1716 | |
| 1717 | |
| 1718 | /* ====================================================================== */ |
| 1719 | |
| 1720 | /**@ingroup msg_mime |
| 1721 | * @defgroup msg_content_md5 Content-MD5 Header |
| 1722 | * |
| 1723 | * The Content-MD5 header is an MD5 digest of the entity-body for the |
| 1724 | * purpose of providing an end-to-end message integrity check (MIC) of the |
| 1725 | * message-body. Its syntax is defined in [@RFC1864, H14.15] as follows: |
| 1726 | * |
| 1727 | * @code |
| 1728 | * Content-MD5 = "Content-MD5" ":" md5-digest |
| 1729 | * md5-digest = <base64 of 128 bit MD5 digest as per @RFC1864> |
| 1730 | * @endcode |
| 1731 | */ |
| 1732 | |
| 1733 | /**@ingroup msg_content_md5 |
| 1734 | * @typedef struct msg_generic_s msg_content_md5_t; |
| 1735 | * |
| 1736 | * The structure msg_content_md5_t contains representation of an @b |
| 1737 | * Content-MD5 header. |
| 1738 | * |
| 1739 | * The msg_content_md5_t is defined as follows: |
| 1740 | * @code |
| 1741 | * typedef struct msg_generic_s |
| 1742 | * { |
| 1743 | * msg_common_t g_common[1]; // Common fragment info |
| 1744 | * msg_generic_t *g_next; // Link to next header |
| 1745 | * char const *g_string; // Header value |
| 1746 | * } msg_content_md5_t; |
| 1747 | * @endcode |
| 1748 | */ |
| 1749 | |
| 1750 | #define msg_content_md5_dmsg_generic_d msg_generic_d |
| 1751 | #define msg_content_md5_emsg_generic_e msg_generic_e |
| 1752 | msg_hclass_t msg_content_md5_class[] = |
| 1753 | MSG_HEADER_CLASS_G(content_md5, "Content-MD5", "", single){{ msg_content_md5_hash, msg_generic_d, msg_generic_e, msg_generic_dup_xtra , msg_generic_dup_one, ((void*)0), "Content-MD5", sizeof("Content-MD5" ) - 1, "", (((uintptr_t)(sizeof(msg_content_md5_t)) + (sizeof (void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_content_md5_t, g_common), msg_kind_single, }}; |
| 1754 | |
| 1755 | /* ====================================================================== */ |
| 1756 | |
| 1757 | /**@ingroup msg_mime |
| 1758 | * @defgroup msg_content_id Content-ID Header |
| 1759 | * |
| 1760 | * The Content-ID header is an unique identifier of an entity-body. The |
| 1761 | * Content-ID value may be used for uniquely identifying MIME entities in |
| 1762 | * several contexts, particularly for caching data referenced by the |
| 1763 | * message/external-body mechanism. Its syntax is defined in [RFC2045] as |
| 1764 | * follows: |
| 1765 | * |
| 1766 | * @code |
| 1767 | * Content-ID = "Content-ID" ":" msg-id |
| 1768 | * msg-id = [CFWS] "<" id-left "@" id-right ">" [CFWS] |
| 1769 | * id-left = dot-atom-text / no-fold-quote / obs-id-left |
| 1770 | * id-right = dot-atom-text / no-fold-literal / obs-id-right |
| 1771 | * @endcode |
| 1772 | */ |
| 1773 | |
| 1774 | /**@ingroup msg_content_id |
| 1775 | * @typedef msg_generic_t msg_content_id_t; |
| 1776 | * Content-ID Header Structure. |
| 1777 | * @code |
| 1778 | * typedef struct |
| 1779 | * { |
| 1780 | * msg_common_t g_common[1]; // Common fragment info |
| 1781 | * msg_content_id_t *g_next; // Link to next header |
| 1782 | * char const *g_string; // Header value |
| 1783 | * } |
| 1784 | * @endcode |
| 1785 | */ |
| 1786 | |
| 1787 | #define msg_content_id_dmsg_generic_d msg_generic_d |
| 1788 | #define msg_content_id_emsg_generic_e msg_generic_e |
| 1789 | msg_hclass_t msg_content_id_class[] = |
| 1790 | MSG_HEADER_CLASS_G(content_id, "Content-ID", "", single){{ msg_content_id_hash, msg_generic_d, msg_generic_e, msg_generic_dup_xtra , msg_generic_dup_one, ((void*)0), "Content-ID", sizeof("Content-ID" ) - 1, "", (((uintptr_t)(sizeof(msg_content_id_t)) + (sizeof( void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_content_id_t, g_common), msg_kind_single, }}; |
| 1791 | |
| 1792 | /* ====================================================================== */ |
| 1793 | |
| 1794 | /**@ingroup msg_mime |
| 1795 | * @defgroup msg_content_type Content-Type Header |
| 1796 | * |
| 1797 | * The @b Content-Type header indicates the media type of the message-body |
| 1798 | * sent to the recipient. Its syntax is defined in [H3.7, S20.15] |
| 1799 | * as follows: |
| 1800 | * |
| 1801 | * @code |
| 1802 | * Content-Type = ( "Content-Type" | "c" ) ":" media-type |
| 1803 | * media-type = type "/" subtype *( ";" parameter ) |
| 1804 | * type = token |
| 1805 | * subtype = token |
| 1806 | * @endcode |
| 1807 | */ |
| 1808 | |
| 1809 | /**@ingroup msg_content_type |
| 1810 | * @typedef typedef struct msg_content_type_s msg_content_type_t; |
| 1811 | * |
| 1812 | * The structure msg_content_type_t contains representation of @b |
| 1813 | * Content-Type header. |
| 1814 | * |
| 1815 | * The msg_content_type_t is defined as follows: |
| 1816 | * @code |
| 1817 | * typedef struct msg_content_type_s { |
| 1818 | * msg_common_t c_common[1]; // Common fragment info |
| 1819 | * msg_unknown_t *c_next; // Dummy link to next |
| 1820 | * char const *c_type; // Pointer to type/subtype |
| 1821 | * char const *c_subtype; // Points after first slash in type |
| 1822 | * msg_param_t const *c_params; // List of parameters |
| 1823 | * } msg_content_type_t; |
| 1824 | * @endcode |
| 1825 | * |
| 1826 | * The @a c_type is always void of whitespace, that is, there is no |
| 1827 | * whitespace around the slash. |
| 1828 | */ |
| 1829 | |
| 1830 | #define msg_content_type_update((void*)0) NULL((void*)0) |
| 1831 | |
| 1832 | msg_hclass_t msg_content_type_class[] = |
| 1833 | MSG_HEADER_CLASS(msg_, content_type, "Content-Type", "c", c_params,{{ msg_content_type_hash, msg_content_type_d, msg_content_type_e , msg_content_type_dup_xtra, msg_content_type_dup_one, ((void *)0), "Content-Type", sizeof("Content-Type") - 1, "c", (((uintptr_t )(sizeof(msg_content_type_t)) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_content_type_t , c_params), msg_kind_single, }} |
| 1834 | single, msg_content_type, msg_content_type){{ msg_content_type_hash, msg_content_type_d, msg_content_type_e , msg_content_type_dup_xtra, msg_content_type_dup_one, ((void *)0), "Content-Type", sizeof("Content-Type") - 1, "c", (((uintptr_t )(sizeof(msg_content_type_t)) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof(msg_content_type_t , c_params), msg_kind_single, }}; |
| 1835 | |
| 1836 | issize_t msg_content_type_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1837 | { |
| 1838 | msg_content_type_t *c; |
| 1839 | |
| 1840 | assert(h)((void) sizeof ((h) ? 1 : 0), __extension__ ({ if (h) ; else __assert_fail ("h", "msg_mime.c", 1840, __extension__ __PRETTY_FUNCTION__) ; })); |
| 1841 | |
| 1842 | c = (msg_content_type_t *)h; |
| 1843 | |
| 1844 | /* "Content-type:" type/subtyp *(; parameter))) */ |
| 1845 | if (msg_mediatype_d(&s, &c->c_type) == -1 || /* compacts token / token */ |
| 1846 | (c->c_subtype = strchr(c->c_type, '/')) == NULL((void*)0) || |
| 1847 | (*s == ';' && msg_params_d(home, &s, &c->c_params) == -1) || |
| 1848 | (*s != '\0')) |
| 1849 | return -1; |
| 1850 | |
| 1851 | c->c_subtype++; |
| 1852 | |
| 1853 | return 0; |
| 1854 | } |
| 1855 | |
| 1856 | issize_t msg_content_type_e(char b[], isize_t bsiz, msg_header_t const *h, int flags) |
| 1857 | { |
| 1858 | char *b0 = b, *end = b + bsiz; |
| 1859 | msg_content_type_t const *c = (msg_content_type_t *)h; |
| 1860 | |
| 1861 | assert(msg_is_content_type(h))((void) sizeof ((msg_is_content_type(h)) ? 1 : 0), __extension__ ({ if (msg_is_content_type(h)) ; else __assert_fail ("msg_is_content_type(h)" , "msg_mime.c", 1861, __extension__ __PRETTY_FUNCTION__); })); |
| 1862 | |
| 1863 | MSG_STRING_E(b, end, c->c_type)do { size_t _n = strlen(c->c_type); if (b + _n+1 < end) memcpy(b, c->c_type, _n+1); b+= _n; } while(0); |
| 1864 | MSG_PARAMS_E(b, end, c->c_params, flags)(b) += msg_params_e((b), (size_t)((b) < (end) ? (end) - (b ) : 0), (c->c_params)); |
| 1865 | MSG_TERM_E(b, end)((b) < (end) ? (b)[0] = '\0' : '\0'); |
| 1866 | |
| 1867 | return b - b0; |
| 1868 | } |
| 1869 | |
| 1870 | isize_t msg_content_type_dup_xtra(msg_header_t const *h, isize_t offset) |
| 1871 | { |
| 1872 | msg_content_type_t const *c = (msg_content_type_t *)h; |
| 1873 | |
| 1874 | MSG_PARAMS_SIZE(offset, c->c_params)(offset = msg_params_dup_xtra(c->c_params, offset)); |
| 1875 | offset += MSG_STRING_SIZE(c->c_type)((c->c_type) ? (strlen(c->c_type) + 1) : 0); |
| 1876 | |
| 1877 | return offset; |
| 1878 | } |
| 1879 | |
| 1880 | /** Duplicate one msg_content_type_t object */ |
| 1881 | char *msg_content_type_dup_one(msg_header_t *dst, msg_header_t const *src, |
| 1882 | char *b, isize_t xtra) |
| 1883 | { |
| 1884 | msg_content_type_t *c = (msg_content_type_t *)dst; |
| 1885 | msg_content_type_t const *o = (msg_content_type_t *)src; |
| 1886 | char *end = b + xtra; |
| 1887 | |
| 1888 | b = msg_params_dup(&c->c_params, o->c_params, b, xtra); |
| 1889 | MSG_STRING_DUP(b, c->c_type, o->c_type)(void)((o->c_type)?((b)=(char*)memccpy((void *)((c->c_type )=(char*)b),(o->c_type),0,2147483647)) :((c->c_type)=(( void*)0))); |
| 1890 | |
| 1891 | c->c_subtype = c->c_type ? strchr(c->c_type, '/') : NULL((void*)0); |
| 1892 | if (c->c_subtype) |
| 1893 | c->c_subtype++; |
| 1894 | |
| 1895 | assert(b <= end)((void) sizeof ((b <= end) ? 1 : 0), __extension__ ({ if ( b <= end) ; else __assert_fail ("b <= end", "msg_mime.c" , 1895, __extension__ __PRETTY_FUNCTION__); })); (void)end; |
| 1896 | |
| 1897 | return b; |
| 1898 | } |
| 1899 | |
| 1900 | /* ====================================================================== */ |
| 1901 | |
| 1902 | /**@ingroup msg_mime |
| 1903 | * @defgroup msg_mime_version MIME-Version Header |
| 1904 | * |
| 1905 | * MIME-Version header indicates what version of the protocol was used |
| 1906 | * to construct the message. Its syntax is defined in [H19.4.1, S20.24] |
| 1907 | * as follows: |
| 1908 | * |
| 1909 | * @code |
| 1910 | * MIME-Version = "MIME-Version" ":" 1*DIGIT "." 1*DIGIT |
| 1911 | * @endcode |
| 1912 | */ |
| 1913 | |
| 1914 | /**@ingroup msg_mime_version |
| 1915 | * @typedef struct msg_generic_s msg_mime_version_t; |
| 1916 | * |
| 1917 | * The structure msg_mime_version_t contains representation of an @b |
| 1918 | * MIME-Version header. |
| 1919 | * |
| 1920 | * The msg_mime_version_t is defined as follows: |
| 1921 | * @code |
| 1922 | * typedef struct msg_generic_s |
| 1923 | * { |
| 1924 | * msg_common_t g_common[1]; // Common fragment info |
| 1925 | * msg_generic_t *g_next; // Link to next header |
| 1926 | * char const *g_string; // Header value |
| 1927 | * } msg_mime_version_t; |
| 1928 | * @endcode |
| 1929 | */ |
| 1930 | |
| 1931 | msg_hclass_t msg_mime_version_class[] = |
| 1932 | MSG_HEADER_CLASS_G(mime_version, "MIME-Version", "", single){{ msg_mime_version_hash, msg_mime_version_d, msg_mime_version_e , msg_generic_dup_xtra, msg_generic_dup_one, ((void*)0), "MIME-Version" , sizeof("MIME-Version") - 1, "", (((uintptr_t)(sizeof(msg_mime_version_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_mime_version_t, g_common), msg_kind_single , }}; |
| 1933 | |
| 1934 | issize_t msg_mime_version_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 1935 | { |
| 1936 | return msg_generic_d(home, h, s, slen); |
| 1937 | } |
| 1938 | |
| 1939 | issize_t msg_mime_version_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 1940 | { |
| 1941 | assert(msg_is_mime_version(h))((void) sizeof ((msg_is_mime_version(h)) ? 1 : 0), __extension__ ({ if (msg_is_mime_version(h)) ; else __assert_fail ("msg_is_mime_version(h)" , "msg_mime.c", 1941, __extension__ __PRETTY_FUNCTION__); })); |
| 1942 | return msg_generic_e(b, bsiz, h, f); |
| 1943 | } |
| 1944 | |
| 1945 | /* ====================================================================== */ |
| 1946 | |
| 1947 | /**@ingroup msg_mime |
| 1948 | * @defgroup msg_content_location Content-Location Header |
| 1949 | * |
| 1950 | * |
| 1951 | */ |
| 1952 | |
| 1953 | /**@ingroup msg_content_location |
| 1954 | * @typedef struct msg_generic_s msg_content_location_t; |
| 1955 | * |
| 1956 | * The structure msg_content_location_t contains representation of an @b |
| 1957 | * Content-Location header. |
| 1958 | * |
| 1959 | * The msg_content_location_t is defined as follows: |
| 1960 | * @code |
| 1961 | * typedef struct msg_generic_s |
| 1962 | * { |
| 1963 | * msg_common_t g_common[1]; // Common fragment info |
| 1964 | * msg_generic_t *g_next; // Link to next header |
| 1965 | * char const *g_string; // Header value |
| 1966 | * } msg_content_location_t; |
| 1967 | * @endcode |
| 1968 | */ |
| 1969 | |
| 1970 | #define msg_content_location_dmsg_generic_d msg_generic_d |
| 1971 | #define msg_content_location_emsg_generic_e msg_generic_e |
| 1972 | msg_hclass_t msg_content_location_class[] = |
| 1973 | MSG_HEADER_CLASS_G(content_location, "Content-Location", "", single){{ msg_content_location_hash, msg_generic_d, msg_generic_e, msg_generic_dup_xtra , msg_generic_dup_one, ((void*)0), "Content-Location", sizeof ("Content-Location") - 1, "", (((uintptr_t)(sizeof(msg_content_location_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_content_location_t, g_common), msg_kind_single , }}; |
| 1974 | |
| 1975 | |
| 1976 | /* ====================================================================== */ |
| 1977 | #if 0 |
| 1978 | /**@ingroup msg_mime |
| 1979 | * @defgroup msg_content_base Content-Base Header |
| 1980 | * |
| 1981 | * @RFC2617: |
| 1982 | * Content-Base was deleted from the specification: it was not |
| 1983 | * implemented widely, and there is no simple, safe way to introduce it |
| 1984 | * without a robust extension mechanism. In addition, it is used in a |
| 1985 | * similar, but not identical fashion in MHTML [45]. |
| 1986 | * |
| 1987 | */ |
| 1988 | |
| 1989 | |
| 1990 | /**@ingroup msg_content_base |
| 1991 | * @typedef msg_generic_t msg_content_base_t; |
| 1992 | * Content-Base Header Structure. |
| 1993 | * @code |
| 1994 | * typedef struct |
| 1995 | * { |
| 1996 | * msg_common_t g_common[1]; // Common fragment info |
| 1997 | * msg_content_base_t *g_next; // Link to next header |
| 1998 | * char const *g_string; // Header value |
| 1999 | * } |
| 2000 | * @endcode |
| 2001 | */ |
| 2002 | |
| 2003 | #define msg_content_base_d msg_generic_d |
| 2004 | #define msg_content_base_e msg_generic_e |
| 2005 | msg_hclass_t msg_content_base_class[] = |
| 2006 | MSG_HEADER_CLASS_G(content_base, "Content-Base", "", single){{ msg_content_base_hash, msg_content_base_d, msg_content_base_e , msg_generic_dup_xtra, msg_generic_dup_one, ((void*)0), "Content-Base" , sizeof("Content-Base") - 1, "", (((uintptr_t)(sizeof(msg_content_base_t )) + (sizeof(void*)) - 1) & (0 - (uintptr_t)(sizeof(void* )))), __builtin_offsetof(msg_content_base_t, g_common), msg_kind_single , }}; |
| 2007 | |
| 2008 | #endif |
| 2009 | |
| 2010 | /* ====================================================================== */ |
| 2011 | |
| 2012 | /**@ingroup msg_mime |
| 2013 | * @defgroup msg_content_transfer_encoding Content-Transfer-Encoding Header |
| 2014 | * |
| 2015 | * |
| 2016 | */ |
| 2017 | |
| 2018 | /**@ingroup msg_content_transfer_encoding |
| 2019 | * @typedef struct msg_generic_s msg_content_transfer_encoding_t; |
| 2020 | * |
| 2021 | * The structure msg_content_transfer_encoding_t contains representation of |
| 2022 | * an @b Content-Transfer-Encoding header. |
| 2023 | * |
| 2024 | * The msg_content_transfer_encoding_t is defined as follows: |
| 2025 | * @code |
| 2026 | * typedef struct msg_generic_s |
| 2027 | * { |
| 2028 | * msg_common_t g_common[1]; // Common fragment info |
| 2029 | * msg_generic_t *g_next; // Link to next header |
| 2030 | * char const *g_string; // Header value |
| 2031 | * } msg_content_transfer_encoding_t; |
| 2032 | * @endcode |
| 2033 | */ |
| 2034 | |
| 2035 | |
| 2036 | #define msg_content_transfer_encoding_dmsg_generic_d msg_generic_d |
| 2037 | #define msg_content_transfer_encoding_emsg_generic_e msg_generic_e |
| 2038 | msg_hclass_t msg_content_transfer_encoding_class[] = |
| 2039 | MSG_HEADER_CLASS_G(content_transfer_encoding, "Content-Transfer-Encoding",{{ msg_content_transfer_encoding_hash, msg_generic_d, msg_generic_e , msg_generic_dup_xtra, msg_generic_dup_one, ((void*)0), "Content-Transfer-Encoding" , sizeof("Content-Transfer-Encoding") - 1, "", (((uintptr_t)( sizeof(msg_content_transfer_encoding_t)) + (sizeof(void*)) - 1 ) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_content_transfer_encoding_t, g_common), msg_kind_single, }} |
| 2040 | "", single){{ msg_content_transfer_encoding_hash, msg_generic_d, msg_generic_e , msg_generic_dup_xtra, msg_generic_dup_one, ((void*)0), "Content-Transfer-Encoding" , sizeof("Content-Transfer-Encoding") - 1, "", (((uintptr_t)( sizeof(msg_content_transfer_encoding_t)) + (sizeof(void*)) - 1 ) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_content_transfer_encoding_t, g_common), msg_kind_single, }}; |
| 2041 | |
| 2042 | /* ====================================================================== */ |
| 2043 | |
| 2044 | /**@ingroup msg_mime |
| 2045 | * @defgroup msg_warning Warning Header |
| 2046 | * |
| 2047 | * The Warning response-header field is used to carry additional information |
| 2048 | * about the status of a response. Its syntax is defined in [S20.43] |
| 2049 | * as follows: |
| 2050 | * |
| 2051 | * @code |
| 2052 | * Warning = "Warning" HCOLON warning-value *(COMMA warning-value) |
| 2053 | * warning-value = warn-code SP warn-agent SP warn-text |
| 2054 | * warn-code = 3DIGIT |
| 2055 | * warn-agent = hostport / pseudonym |
| 2056 | * ; the name or pseudonym of the server adding |
| 2057 | * ; the Warning header, for use in debugging |
| 2058 | * warn-text = quoted-string |
| 2059 | * pseudonym = token |
| 2060 | * @endcode |
| 2061 | */ |
| 2062 | |
| 2063 | /**@ingroup msg_warning |
| 2064 | * @typedef struct msg_warning_s msg_warning_t; |
| 2065 | * |
| 2066 | * The structure msg_warning_t contains representation of an @b |
| 2067 | * Warning header. |
| 2068 | * |
| 2069 | * The msg_warning_t is defined as follows: |
| 2070 | * @code |
| 2071 | * typedef struct msg_warning_s |
| 2072 | * { |
| 2073 | * msg_common_t w_common[1]; // Common fragment info |
| 2074 | * msg_warning_t *w_next; // Link to next Warning header |
| 2075 | * unsigned w_code; // Warning code |
| 2076 | * char const *w_host; // Hostname or pseudonym |
| 2077 | * char const *w_port; // Port number |
| 2078 | * char const *w_text; // Warning text |
| 2079 | * } msg_warning_t; |
| 2080 | * @endcode |
| 2081 | */ |
| 2082 | |
| 2083 | issize_t msg_warning_d(su_home_t *home, msg_header_t *h, char *s, isize_t slen) |
| 2084 | { |
| 2085 | msg_warning_t *w; |
| 2086 | char *text; |
| 2087 | |
| 2088 | for(;;) { |
| 2089 | w = (msg_warning_t *)h; |
| 2090 | while (*s == ',') /* Ignore empty entries (comma-whitespace) */ |
| 2091 | *s = '\0', s += span_lws(s + 1) + 1; |
| 2092 | |
| 2093 | /* Parse protocol */ |
| 2094 | if (!IS_DIGIT(*s)((*s) >= '0' && (*s) <= '9')) |
| 2095 | return -1; |
| 2096 | w->w_code = strtoul(s, &s, 10); |
| 2097 | skip_lws(&s)(*(&s) += span_lws(*(&s))); |
| 2098 | |
| 2099 | /* Host (and port) */ |
| 2100 | if (msg_hostport_d(&s, &w->w_host, &w->w_port) == -1) |
| 2101 | return -1; |
| 2102 | if (msg_quoted_d(&s, &text) == -1) |
| 2103 | return -1; |
| 2104 | if (msg_unquote(text, text) == NULL((void*)0)) |
| 2105 | return -1; |
| 2106 | |
| 2107 | w->w_text = text; |
| 2108 | |
| 2109 | msg_parse_next_field_without_recursion(){ msg_header_t *prev = h; msg_hclass_t *hc = prev->sh_common ->h_class; char *end = s + slen; if (*s && *s != ',' ) return -1; if (msg_header_update_params(prev->sh_common, 0) < 0) return -1; while (*s == ',') *s = '\0', s += span_lws (s + 1) + 1; if (*s == 0) return 0; h = msg_header_alloc(home , hc, 0); if (!h) return -1; prev->sh_common->h_succ = h , h->sh_common->h_prev = &prev->sh_common->h_succ ; prev->sh_header_next->shn_next = h; slen = end - s; }; |
| 2110 | } |
| 2111 | |
| 2112 | } |
| 2113 | |
| 2114 | issize_t msg_warning_e(char b[], isize_t bsiz, msg_header_t const *h, int f) |
| 2115 | { |
| 2116 | msg_warning_t const *w = (msg_warning_t *)h; |
| 2117 | char const *port = w->w_port; |
| 2118 | int n; |
| 2119 | size_t m; |
| 2120 | |
| 2121 | n = snprintf(b, bsiz, "%03u %s%s%s ", |
| 2122 | w->w_code, w->w_host, port ? ":" : "", port ? port : ""); |
| 2123 | if (n < 0) |
| 2124 | return n; |
| 2125 | |
| 2126 | m = msg_unquoted_e((size_t)n < bsiz ? b + n : NULL((void*)0), bsiz - n, w->w_text); |
| 2127 | |
| 2128 | if (b && n + m < bsiz) |
| 2129 | b[n + m] = '\0'; |
| 2130 | |
| 2131 | return n + m; |
| 2132 | } |
| 2133 | |
| 2134 | isize_t msg_warning_dup_xtra(msg_header_t const *h, isize_t offset) |
| 2135 | { |
| 2136 | msg_warning_t const *w = (msg_warning_t *)h; |
| 2137 | |
| 2138 | offset += MSG_STRING_SIZE(w->w_host)((w->w_host) ? (strlen(w->w_host) + 1) : 0); |
| 2139 | offset += MSG_STRING_SIZE(w->w_port)((w->w_port) ? (strlen(w->w_port) + 1) : 0); |
| 2140 | offset += MSG_STRING_SIZE(w->w_text)((w->w_text) ? (strlen(w->w_text) + 1) : 0); |
| 2141 | |
| 2142 | return offset; |
| 2143 | } |
| 2144 | |
| 2145 | char *msg_warning_dup_one(msg_header_t *dst, |
| 2146 | msg_header_t const *src, |
| 2147 | char *b, |
| 2148 | isize_t xtra) |
| 2149 | { |
| 2150 | msg_warning_t *w = (msg_warning_t *)dst; |
| 2151 | msg_warning_t const *o = (msg_warning_t *)src; |
| 2152 | char *end = b + xtra; |
| 2153 | |
| 2154 | w->w_code = o->w_code; |
| 2155 | MSG_STRING_DUP(b, w->w_host, o->w_host)(void)((o->w_host)?((b)=(char*)memccpy((void *)((w->w_host )=(char*)b),(o->w_host),0,2147483647)) :((w->w_host)=(( void*)0))); |
| 2156 | MSG_STRING_DUP(b, w->w_port, o->w_port)(void)((o->w_port)?((b)=(char*)memccpy((void *)((w->w_port )=(char*)b),(o->w_port),0,2147483647)) :((w->w_port)=(( void*)0))); |
| 2157 | MSG_STRING_DUP(b, w->w_text, o->w_text)(void)((o->w_text)?((b)=(char*)memccpy((void *)((w->w_text )=(char*)b),(o->w_text),0,2147483647)) :((w->w_text)=(( void*)0))); |
| 2158 | |
| 2159 | assert(b <= end)((void) sizeof ((b <= end) ? 1 : 0), __extension__ ({ if ( b <= end) ; else __assert_fail ("b <= end", "msg_mime.c" , 2159, __extension__ __PRETTY_FUNCTION__); })); (void)end; |
| 2160 | |
| 2161 | return b; |
| 2162 | } |
| 2163 | |
| 2164 | #define msg_warning_update((void*)0) NULL((void*)0) |
| 2165 | |
| 2166 | msg_hclass_t msg_warning_class[] = |
| 2167 | MSG_HEADER_CLASS(msg_, warning, "Warning", "", w_common, append,{{ msg_warning_hash, msg_warning_d, msg_warning_e, msg_warning_dup_xtra , msg_warning_dup_one, ((void*)0), "Warning", sizeof("Warning" ) - 1, "", (((uintptr_t)(sizeof(msg_warning_t)) + (sizeof(void *)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_warning_t, w_common), msg_kind_append, }} |
| 2168 | msg_warning, msg_warning){{ msg_warning_hash, msg_warning_d, msg_warning_e, msg_warning_dup_xtra , msg_warning_dup_one, ((void*)0), "Warning", sizeof("Warning" ) - 1, "", (((uintptr_t)(sizeof(msg_warning_t)) + (sizeof(void *)) - 1) & (0 - (uintptr_t)(sizeof(void*)))), __builtin_offsetof (msg_warning_t, w_common), msg_kind_append, }}; |