nsz Git - musl/blob - src/locale/iconv.c

   1 #include <iconv.h>
   2 #include <errno.h>
   3 #include <wchar.h>
   4 #include <string.h>
   5 #include <stdlib.h>
   6 #include <limits.h>
   7 #include <stdint.h>
   8 #include "locale_impl.h"
   9
  10 #define UTF_32BE    0300
  11 #define UTF_16LE    0301
  12 #define UTF_16BE    0302
  13 #define UTF_32LE    0303
  14 #define UCS2BE      0304
  15 #define UCS2LE      0305
  16 #define WCHAR_T     0306
  17 #define US_ASCII    0307
  18 #define UTF_8       0310
  19 #define UTF_16      0312
  20 #define UTF_32      0313
  21 #define UCS2        0314
  22 #define EUC_JP      0320
  23 #define SHIFT_JIS   0321
  24 #define ISO2022_JP  0322
  25 #define GB18030     0330
  26 #define GBK         0331
  27 #define GB2312      0332
  28 #define BIG5        0340
  29 #define EUC_KR      0350
  30
  31 /* Definitions of charmaps. Each charmap consists of:
  32  * 1. Empty-string-terminated list of null-terminated aliases.
  33  * 2. Special type code or number of elided quads of entries.
  34  * 3. Character table (size determined by field 2), consisting
  35  *    of 5 bytes for every 4 characters, interpreted as 10-bit
  36  *    indices into the legacy_chars table. */
  37
  38 static const unsigned char charmaps[] =
  39 "utf8\0char\0\0\310"
  40 "wchart\0\0\306"
  41 "ucs2be\0\0\304"
  42 "ucs2le\0\0\305"
  43 "utf16be\0\0\302"
  44 "utf16le\0\0\301"
  45 "ucs4be\0utf32be\0\0\300"
  46 "ucs4le\0utf32le\0\0\303"
  47 "ascii\0usascii\0iso646\0iso646us\0\0\307"
  48 "utf16\0\0\312"
  49 "ucs4\0utf32\0\0\313"
  50 "ucs2\0\0\314"
  51 "eucjp\0\0\320"
  52 "shiftjis\0sjis\0\0\321"
  53 "iso2022jp\0\0\322"
  54 "gb18030\0\0\330"
  55 "gbk\0\0\331"
  56 "gb2312\0\0\332"
  57 "big5\0bigfive\0cp950\0big5hkscs\0\0\340"
  58 "euckr\0ksc5601\0ksx1001\0cp949\0\0\350"
  59 #include "codepages.h"
  60 ;
  61
  62 /* Table of characters that appear in legacy 8-bit codepages,
  63  * limited to 1024 slots (10 bit indices). The first 256 entries
  64  * are elided since those characters are obviously all included. */
  65 static const unsigned short legacy_chars[] = {
  66 #include "legacychars.h"
  67 };
  68
  69 static const unsigned short jis0208[84][94] = {
  70 #include "jis0208.h"
  71 };
  72
  73 static const unsigned short gb18030[126][190] = {
  74 #include "gb18030.h"
  75 };
  76
  77 static const unsigned short big5[89][157] = {
  78 #include "big5.h"
  79 };
  80
  81 static const unsigned short hkscs[] = {
  82 #include "hkscs.h"
  83 };
  84
  85 static const unsigned short ksc[93][94] = {
  86 #include "ksc.h"
  87 };
  88
  89 static const unsigned short rev_jis[] = {
  90 #include "revjis.h"
  91 };
  92
  93 static int fuzzycmp(const unsigned char *a, const unsigned char *b)
  94 {
  95         for (; *a && *b; a++, b++) {
  96                 while (*a && (*a|32U)-'a'>26 && *a-'0'>10U) a++;
  97                 if ((*a|32U) != *b) return 1;
  98         }
  99         return *a != *b;
 100 }
 101
 102 static size_t find_charmap(const void *name)
 103 {
 104         const unsigned char *s;
 105         if (!*(char *)name) name=charmaps; /* "utf8" */
 106         for (s=charmaps; *s; ) {
 107                 if (!fuzzycmp(name, s)) {
 108                         for (; *s; s+=strlen((void *)s)+1);
 109                         return s+1-charmaps;
 110                 }
 111                 s += strlen((void *)s)+1;
 112                 if (!*s) {
 113                         if (s[1] > 0200) s+=2;
 114                         else s+=2+(64U-s[1])*5;
 115                 }
 116         }
 117         return -1;
 118 }
 119
 120 struct stateful_cd {
 121         iconv_t base_cd;
 122         unsigned state;
 123 };
 124
 125 static iconv_t combine_to_from(size_t t, size_t f)
 126 {
 127         return (void *)(f<<16 | t<<1 | 1);
 128 }
 129
 130 static size_t extract_from(iconv_t cd)
 131 {
 132         return (size_t)cd >> 16;
 133 }
 134
 135 static size_t extract_to(iconv_t cd)
 136 {
 137         return (size_t)cd >> 1 & 0x7fff;
 138 }
 139
 140 iconv_t iconv_open(const char *to, const char *from)
 141 {
 142         size_t f, t;
 143         struct stateful_cd *scd;
 144
 145         if ((t = find_charmap(to))==-1
 146          || (f = find_charmap(from))==-1
 147          || (charmaps[t] >= 0330)) {
 148                 errno = EINVAL;
 149                 return (iconv_t)-1;
 150         }
 151         iconv_t cd = combine_to_from(t, f);
 152
 153         switch (charmaps[f]) {
 154         case UTF_16:
 155         case UTF_32:
 156         case UCS2:
 157         case ISO2022_JP:
 158                 scd = malloc(sizeof *scd);
 159                 if (!scd) return (iconv_t)-1;
 160                 scd->base_cd = cd;
 161                 scd->state = 0;
 162                 cd = (iconv_t)scd;
 163         }
 164
 165         return cd;
 166 }
 167
 168 static unsigned get_16(const unsigned char *s, int e)
 169 {
 170         e &= 1;
 171         return s[e]<<8 | s[1-e];
 172 }
 173
 174 static void put_16(unsigned char *s, unsigned c, int e)
 175 {
 176         e &= 1;
 177         s[e] = c>>8;
 178         s[1-e] = c;
 179 }
 180
 181 static unsigned get_32(const unsigned char *s, int e)
 182 {
 183         e &= 3;
 184         return s[e]+0U<<24 | s[e^1]<<16 | s[e^2]<<8 | s[e^3];
 185 }
 186
 187 static void put_32(unsigned char *s, unsigned c, int e)
 188 {
 189         e &= 3;
 190         s[e^0] = c>>24;
 191         s[e^1] = c>>16;
 192         s[e^2] = c>>8;
 193         s[e^3] = c;
 194 }
 195
 196 /* Adapt as needed */
 197 #define mbrtowc_utf8 mbrtowc
 198 #define wctomb_utf8 wctomb
 199
 200 static unsigned legacy_map(const unsigned char *map, unsigned c)
 201 {
 202         if (c < 4*map[-1]) return c;
 203         unsigned x = c - 4*map[-1];
 204         x = map[x*5/4]>>2*x%8 | map[x*5/4+1]<<8-2*x%8 & 1023;
 205         return x < 256 ? x : legacy_chars[x-256];
 206 }
 207
 208 static unsigned uni_to_jis(unsigned c)
 209 {
 210         unsigned nel = sizeof rev_jis / sizeof *rev_jis;
 211         unsigned d, j, i, b = 0;
 212         for (;;) {
 213                 i = nel/2;
 214                 j = rev_jis[b+i];
 215                 d = jis0208[j/256][j%256];
 216                 if (d==c) return j + 0x2121;
 217                 else if (nel == 1) return 0;
 218                 else if (c < d)
 219                         nel /= 2;
 220                 else {
 221                         b += i;
 222                         nel -= nel/2;
 223                 }
 224         }
 225 }
 226
 227 size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restrict out, size_t *restrict outb)
 228 {
 229         size_t x=0;
 230         struct stateful_cd *scd=0;
 231         if (!((size_t)cd & 1)) {
 232                 scd = (void *)cd;
 233                 cd = scd->base_cd;
 234         }
 235         unsigned to = extract_to(cd);
 236         unsigned from = extract_from(cd);
 237         const unsigned char *map = charmaps+from+1;
 238         const unsigned char *tomap = charmaps+to+1;
 239         mbstate_t st = {0};
 240         wchar_t wc;
 241         unsigned c, d;
 242         size_t k, l;
 243         int err;
 244         unsigned char type = map[-1];
 245         unsigned char totype = tomap[-1];
 246         locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;
 247
 248         if (!in || !*in || !*inb) return 0;
 249
 250         *ploc = UTF8_LOCALE;
 251
 252         for (; *inb; *in+=l, *inb-=l) {
 253                 c = *(unsigned char *)*in;
 254                 l = 1;
 255
 256                 switch (type) {
 257                 case UTF_8:
 258                         if (c < 128) break;
 259                         l = mbrtowc_utf8(&wc, *in, *inb, &st);
 260                         if (l == (size_t)-1) goto ilseq;
 261                         if (l == (size_t)-2) goto starved;
 262                         c = wc;
 263                         break;
 264                 case US_ASCII:
 265                         if (c >= 128) goto ilseq;
 266                         break;
 267                 case WCHAR_T:
 268                         l = sizeof(wchar_t);
 269                         if (*inb < l) goto starved;
 270                         c = *(wchar_t *)*in;
 271                         if (0) {
 272                 case UTF_32BE:
 273                 case UTF_32LE:
 274                         l = 4;
 275                         if (*inb < 4) goto starved;
 276                         c = get_32((void *)*in, type);
 277                         }
 278                         if (c-0xd800u < 0x800u || c >= 0x110000u) goto ilseq;
 279                         break;
 280                 case UCS2BE:
 281                 case UCS2LE:
 282                 case UTF_16BE:
 283                 case UTF_16LE:
 284                         l = 2;
 285                         if (*inb < 2) goto starved;
 286                         c = get_16((void *)*in, type);
 287                         if ((unsigned)(c-0xdc00) < 0x400) goto ilseq;
 288                         if ((unsigned)(c-0xd800) < 0x400) {
 289                                 if (type-UCS2BE < 2U) goto ilseq;
 290                                 l = 4;
 291                                 if (*inb < 4) goto starved;
 292                                 d = get_16((void *)(*in + 2), type);
 293                                 if ((unsigned)(d-0xdc00) >= 0x400) goto ilseq;
 294                                 c = ((c-0xd7c0)<<10) + (d-0xdc00);
 295                         }
 296                         break;
 297                 case UCS2:
 298                 case UTF_16:
 299                         l = 0;
 300                         if (!scd->state) {
 301                                 if (*inb < 2) goto starved;
 302                                 c = get_16((void *)*in, 0);
 303                                 scd->state = type==UCS2
 304                                         ? c==0xfffe ? UCS2LE : UCS2BE
 305                                         : c==0xfffe ? UTF_16LE : UTF_16BE;
 306                                 if (c == 0xfffe || c == 0xfeff)
 307                                         l = 2;
 308                         }
 309                         type = scd->state;
 310                         continue;
 311                 case UTF_32:
 312                         l = 0;
 313                         if (!scd->state) {
 314                                 if (*inb < 4) goto starved;
 315                                 c = get_32((void *)*in, 0);
 316                                 scd->state = c==0xfffe0000 ? UTF_32LE : UTF_32BE;
 317                                 if (c == 0xfffe0000 || c == 0xfeff)
 318                                         l = 4;
 319                         }
 320                         type = scd->state;
 321                         continue;
 322                 case SHIFT_JIS:
 323                         if (c < 128) break;
 324                         if (c-0xa1 <= 0xdf-0xa1) {
 325                                 c += 0xff61-0xa1;
 326                                 break;
 327                         }
 328                         l = 2;
 329                         if (*inb < 2) goto starved;
 330                         d = *((unsigned char *)*in + 1);
 331                         if (c-129 <= 159-129) c -= 129;
 332                         else if (c-224 <= 239-224) c -= 193;
 333                         else goto ilseq;
 334                         c *= 2;
 335                         if (d-64 <= 158-64) {
 336                                 if (d==127) goto ilseq;
 337                                 if (d>127) d--;
 338                                 d -= 64;
 339                         } else if (d-159 <= 252-159) {
 340                                 c++;
 341                                 d -= 159;
 342                         }
 343                         c = jis0208[c][d];
 344                         if (!c) goto ilseq;
 345                         break;
 346                 case EUC_JP:
 347                         if (c < 128) break;
 348                         l = 2;
 349                         if (*inb < 2) goto starved;
 350                         d = *((unsigned char *)*in + 1);
 351                         if (c==0x8e) {
 352                                 c = d;
 353                                 if (c-0xa1 > 0xdf-0xa1) goto ilseq;
 354                                 c += 0xff61 - 0xa1;
 355                                 break;
 356                         }
 357                         c -= 0xa1;
 358                         d -= 0xa1;
 359                         if (c >= 84 || d >= 94) goto ilseq;
 360                         c = jis0208[c][d];
 361                         if (!c) goto ilseq;
 362                         break;
 363                 case ISO2022_JP:
 364                         if (c >= 128) goto ilseq;
 365                         if (c == '\033') {
 366                                 l = 3;
 367                                 if (*inb < 3) goto starved;
 368                                 c = *((unsigned char *)*in + 1);
 369                                 d = *((unsigned char *)*in + 2);
 370                                 if (c != '(' && c != '$') goto ilseq;
 371                                 switch (128*(c=='$') + d) {
 372                                 case 'B': scd->state=0; continue;
 373                                 case 'J': scd->state=1; continue;
 374                                 case 'I': scd->state=4; continue;
 375                                 case 128+'@': scd->state=2; continue;
 376                                 case 128+'B': scd->state=3; continue;
 377                                 }
 378                                 goto ilseq;
 379                         }
 380                         switch (scd->state) {
 381                         case 1:
 382                                 if (c=='\\') c = 0xa5;
 383                                 if (c=='~') c = 0x203e;
 384                                 break;
 385                         case 2:
 386                         case 3:
 387                                 l = 2;
 388                                 if (*inb < 2) goto starved;
 389                                 d = *((unsigned char *)*in + 1);
 390                                 c -= 0x21;
 391                                 d -= 0x21;
 392                                 if (c >= 84 || d >= 94) goto ilseq;
 393                                 c = jis0208[c][d];
 394                                 if (!c) goto ilseq;
 395                                 break;
 396                         case 4:
 397                                 if (c-0x60 < 0x1f) goto ilseq;
 398                                 if (c-0x21 < 0x5e) c += 0xff61-0x21;
 399                                 break;
 400                         }
 401                         break;
 402                 case GB2312:
 403                         if (c < 128) break;
 404                         if (c < 0xa1) goto ilseq;
 405                 case GBK:
 406                 case GB18030:
 407                         if (c < 128) break;
 408                         c -= 0x81;
 409                         if (c >= 126) goto ilseq;
 410                         l = 2;
 411                         if (*inb < 2) goto starved;
 412                         d = *((unsigned char *)*in + 1);
 413                         if (d < 0xa1 && type == GB2312) goto ilseq;
 414                         if (d-0x40>=191 || d==127) {
 415                                 if (d-'0'>9 || type != GB18030)
 416                                         goto ilseq;
 417                                 l = 4;
 418                                 if (*inb < 4) goto starved;
 419                                 c = (10*c + d-'0') * 1260;
 420                                 d = *((unsigned char *)*in + 2);
 421                                 if (d-0x81>126) goto ilseq;
 422                                 c += 10*(d-0x81);
 423                                 d = *((unsigned char *)*in + 3);
 424                                 if (d-'0'>9) goto ilseq;
 425                                 c += d-'0';
 426                                 c += 128;
 427                                 for (d=0; d<=c; ) {
 428                                         k = 0;
 429                                         for (int i=0; i<126; i++)
 430                                                 for (int j=0; j<190; j++)
 431                                                         if (gb18030[i][j]-d <= c-d)
 432                                                                 k++;
 433                                         d = c+1;
 434                                         c += k;
 435                                 }
 436                                 break;
 437                         }
 438                         d -= 0x40;
 439                         if (d>63) d--;
 440                         c = gb18030[c][d];
 441                         break;
 442                 case BIG5:
 443                         if (c < 128) break;
 444                         l = 2;
 445                         if (*inb < 2) goto starved;
 446                         d = *((unsigned char *)*in + 1);
 447                         if (d-0x40>=0xff-0x40 || d-0x7f<0xa1-0x7f) goto ilseq;
 448                         d -= 0x40;
 449                         if (d > 0x3e) d -= 0x22;
 450                         if (c-0xa1>=0xfa-0xa1) {
 451                                 if (c-0x87>=0xff-0x87) goto ilseq;
 452                                 if (c < 0xa1) c -= 0x87;
 453                                 else c -= 0x87 + (0xfa-0xa1);
 454                                 c = (hkscs[4867+(c*157+d)/16]>>(c*157+d)%16)%2<<17
 455                                         | hkscs[c*157+d];
 456                                 /* A few HKSCS characters map to pairs of UCS
 457                                  * characters. These are mapped to surrogate
 458                                  * range in the hkscs table then hard-coded
 459                                  * here. Ugly, yes. */
 460                                 if (c/256 == 0xdc) {
 461                                         union {
 462                                                 char c[8];
 463                                                 wchar_t wc[2];
 464                                         } tmp;
 465                                         char *ptmp = tmp.c;
 466                                         size_t tmpx = iconv(combine_to_from(to, find_charmap("utf8")),
 467                                                 &(char *){"\303\212\314\204"
 468                                                 "\303\212\314\214"
 469                                                 "\303\252\314\204"
 470                                                 "\303\252\314\214"
 471                                                 +c%256}, &(size_t){4},
 472                                                 &ptmp, &(size_t){sizeof tmp});
 473                                         size_t tmplen = ptmp - tmp.c;
 474                                         if (tmplen > *outb) goto toobig;
 475                                         if (tmpx) x++;
 476                                         memcpy(*out, &tmp, tmplen);
 477                                         *out += tmplen;
 478                                         *outb -= tmplen;
 479                                         continue;
 480                                 }
 481                                 if (!c) goto ilseq;
 482                                 break;
 483                         }
 484                         c -= 0xa1;
 485                         c = big5[c][d]|(c==0x27&&(d==0x3a||d==0x3c||d==0x42))<<17;
 486                         if (!c) goto ilseq;
 487                         break;
 488                 case EUC_KR:
 489                         if (c < 128) break;
 490                         l = 2;
 491                         if (*inb < 2) goto starved;
 492                         d = *((unsigned char *)*in + 1);
 493                         c -= 0xa1;
 494                         d -= 0xa1;
 495                         if (c >= 93 || d >= 94) {
 496                                 c += (0xa1-0x81);
 497                                 d += 0xa1;
 498                                 if (c >= 93 || c>=0xc6-0x81 && d>0x52)
 499                                         goto ilseq;
 500                                 if (d-'A'<26) d = d-'A';
 501                                 else if (d-'a'<26) d = d-'a'+26;
 502                                 else if (d-0x81<0xff-0x81) d = d-0x81+52;
 503                                 else goto ilseq;
 504                                 if (c < 0x20) c = 178*c + d;
 505                                 else c = 178*0x20 + 84*(c-0x20) + d;
 506                                 c += 0xac00;
 507                                 for (d=0xac00; d<=c; ) {
 508                                         k = 0;
 509                                         for (int i=0; i<93; i++)
 510                                                 for (int j=0; j<94; j++)
 511                                                         if (ksc[i][j]-d <= c-d)
 512                                                                 k++;
 513                                         d = c+1;
 514                                         c += k;
 515                                 }
 516                                 break;
 517                         }
 518                         c = ksc[c][d];
 519                         if (!c) goto ilseq;
 520                         break;
 521                 default:
 522                         if (!c) break;
 523                         c = legacy_map(map, c);
 524                         if (!c) goto ilseq;
 525                 }
 526
 527                 switch (totype) {
 528                 case WCHAR_T:
 529                         if (*outb < sizeof(wchar_t)) goto toobig;
 530                         *(wchar_t *)*out = c;
 531                         *out += sizeof(wchar_t);
 532                         *outb -= sizeof(wchar_t);
 533                         break;
 534                 case UTF_8:
 535                         if (*outb < 4) {
 536                                 char tmp[4];
 537                                 k = wctomb_utf8(tmp, c);
 538                                 if (*outb < k) goto toobig;
 539                                 memcpy(*out, tmp, k);
 540                         } else k = wctomb_utf8(*out, c);
 541                         *out += k;
 542                         *outb -= k;
 543                         break;
 544                 case US_ASCII:
 545                         if (c > 0x7f) subst: x++, c='*';
 546                 default:
 547                         if (*outb < 1) goto toobig;
 548                         if (c<256 && c==legacy_map(tomap, c)) {
 549                         revout:
 550                                 if (*outb < 1) goto toobig;
 551                                 *(*out)++ = c;
 552                                 *outb -= 1;
 553                                 break;
 554                         }
 555                         d = c;
 556                         for (c=4*totype; c<256; c++) {
 557                                 if (d == legacy_map(tomap, c)) {
 558                                         goto revout;
 559                                 }
 560                         }
 561                         goto subst;
 562                 case SHIFT_JIS:
 563                         if (c < 128) goto revout;
 564                         if (c == 0xa5) {
 565                                 x++;
 566                                 c = '\\';
 567                                 goto revout;
 568                         }
 569                         if (c == 0x203e) {
 570                                 x++;
 571                                 c = '~';
 572                                 goto revout;
 573                         }
 574                         if (c-0xff61 <= 0xdf-0xa1) {
 575                                 c += 0xa1 - 0xff61;
 576                                 goto revout;
 577                         }
 578                         c = uni_to_jis(c);
 579                         if (!c) goto subst;
 580                         if (*outb < 2) goto toobig;
 581                         d = c%256;
 582                         c = c/256;
 583                         *(*out)++ = (c+1)/2 + (c<95 ? 112 : 176);
 584                         *(*out)++ = c%2 ? d + 31 + d/96 : d + 126;
 585                         *outb -= 2;
 586                         break;
 587                 case EUC_JP:
 588                         if (c < 128) goto revout;
 589                         if (c-0xff61 <= 0xdf-0xa1) {
 590                                 c += 0x0e00 + 0x21 - 0xff61;
 591                         } else {
 592                                 c = uni_to_jis(c);
 593                         }
 594                         if (!c) goto subst;
 595                         if (*outb < 2) goto toobig;
 596                         *(*out)++ = c/256 + 0x80;
 597                         *(*out)++ = c%256 + 0x80;
 598                         *outb -= 2;
 599                         break;
 600                 case ISO2022_JP:
 601                         if (c < 128) goto revout;
 602                         if (c-0xff61 <= 0xdf-0xa1 || c==0xa5 || c==0x203e) {
 603                                 if (*outb < 7) goto toobig;
 604                                 *(*out)++ = '\033';
 605                                 *(*out)++ = '(';
 606                                 if (c==0xa5) {
 607                                         *(*out)++ = 'J';
 608                                         *(*out)++ = '\\';
 609                                 } else if (c==0x203e) {
 610                                         *(*out)++ = 'J';
 611                                         *(*out)++ = '~';
 612                                 } else {
 613                                         *(*out)++ = 'I';
 614                                         *(*out)++ = c-0xff61+0x21;
 615                                 }
 616                                 *(*out)++ = '\033';
 617                                 *(*out)++ = '(';
 618                                 *(*out)++ = 'B';
 619                                 *outb -= 7;
 620                                 break;
 621                         }
 622                         c = uni_to_jis(c);
 623                         if (!c) goto subst;
 624                         if (*outb < 8) goto toobig;
 625                         *(*out)++ = '\033';
 626                         *(*out)++ = '$';
 627                         *(*out)++ = 'B';
 628                         *(*out)++ = c/256;
 629                         *(*out)++ = c%256;
 630                         *(*out)++ = '\033';
 631                         *(*out)++ = '(';
 632                         *(*out)++ = 'B';
 633                         *outb -= 8;
 634                         break;
 635                 case UCS2:
 636                         totype = UCS2BE;
 637                 case UCS2BE:
 638                 case UCS2LE:
 639                 case UTF_16:
 640                 case UTF_16BE:
 641                 case UTF_16LE:
 642                         if (c < 0x10000 || totype-UCS2BE < 2U) {
 643                                 if (c >= 0x10000) c = 0xFFFD;
 644                                 if (*outb < 2) goto toobig;
 645                                 put_16((void *)*out, c, totype);
 646                                 *out += 2;
 647                                 *outb -= 2;
 648                                 break;
 649                         }
 650                         if (*outb < 4) goto toobig;
 651                         c -= 0x10000;
 652                         put_16((void *)*out, (c>>10)|0xd800, totype);
 653                         put_16((void *)(*out + 2), (c&0x3ff)|0xdc00, totype);
 654                         *out += 4;
 655                         *outb -= 4;
 656                         break;
 657                 case UTF_32:
 658                         totype = UTF_32BE;
 659                 case UTF_32BE:
 660                 case UTF_32LE:
 661                         if (*outb < 4) goto toobig;
 662                         put_32((void *)*out, c, totype);
 663                         *out += 4;
 664                         *outb -= 4;
 665                         break;
 666                 }
 667         }
 668         *ploc = loc;
 669         return x;
 670 ilseq:
 671         err = EILSEQ;
 672         x = -1;
 673         goto end;
 674 toobig:
 675         err = E2BIG;
 676         x = -1;
 677         goto end;
 678 starved:
 679         err = EINVAL;
 680         x = -1;
 681 end:
 682         errno = err;
 683         *ploc = loc;
 684         return x;
 685 }