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libiconv 1.16

    1: /* Copyright (C) 2000-2002, 2004-2005 Free Software Foundation, Inc.
    2:    This file is part of the GNU LIBICONV Library.
    3: 
    4:    The GNU LIBICONV Library is free software; you can redistribute it
    5:    and/or modify it under the terms of the GNU Library General Public
    6:    License as published by the Free Software Foundation; either version 2
    7:    of the License, or (at your option) any later version.
    8: 
    9:    The GNU LIBICONV Library is distributed in the hope that it will be
   10:    useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Library General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Library General Public
   15:    License along with the GNU LIBICONV Library; see the file COPYING.LIB.
   16:    If not, see <https://www.gnu.org/licenses/>.  */
   17: 
   18: /* Create a table from Unicode to CHARSET. */
   19: 
   20: #include "config.h"
   21: 
   22: #include <stddef.h>
   23: #include <stdio.h>
   24: #include <stdlib.h>
   25: #include <string.h>
   26: #include <iconv.h>
   27: #include <errno.h>
   28: 
   29: #include "binary-io.h"
   30: 
   31: int main (int argc, char* argv[])
   32: {
   33:   const char* charset;
   34:   iconv_t cd;
   35:   int bmp_only;
   36: 
   37:   if (argc != 2) {
   38:     fprintf(stderr,"Usage: table-to charset\n");
   39:     exit(1);
   40:   }
   41:   charset = argv[1];
   42: 
   43: #if O_BINARY
   44:   SET_BINARY(fileno(stdout));
   45: #endif
   46: 
   47:   cd = iconv_open(charset,"UCS-4-INTERNAL");
   48:   if (cd == (iconv_t)(-1)) {
   49:     perror("iconv_open");
   50:     exit(1);
   51:   }
   52: 
   53:   /* When testing UTF-8, stop at 0x10000, otherwise the output file gets too
   54:      big. */
   55:   bmp_only = (strcmp(charset,"UTF-8") == 0);
   56: 
   57:   {
   58:     unsigned int i;
   59:     unsigned char buf[10];
   60:     for (i = 0; i < (bmp_only ? 0x10000 : 0x110000); i++) {
   61:       unsigned int in = i;
   62:       const char* inbuf = (const char*) &in;
   63:       size_t inbytesleft = sizeof(unsigned int);
   64:       char* outbuf = (char*)buf;
   65:       size_t outbytesleft = sizeof(buf);
   66:       size_t result;
   67:       size_t result2 = 0;
   68:       iconv(cd,NULL,NULL,NULL,NULL);
   69:       result = iconv(cd,(ICONV_CONST char**)&inbuf,&inbytesleft,&outbuf,&outbytesleft);
   70:       if (result != (size_t)(-1))
   71:         result2 = iconv(cd,NULL,NULL,&outbuf,&outbytesleft);
   72:       if (result == (size_t)(-1) || result2 == (size_t)(-1)) {
   73:         if (errno != EILSEQ) {
   74:           int saved_errno = errno;
   75:           fprintf(stderr,"0x%02X: iconv error: ",i);
   76:           errno = saved_errno;
   77:           perror("");
   78:           exit(1);
   79:         }
   80:       } else if (result == 0) /* ignore conversions with transliteration */ {
   81:         if (inbytesleft == 0 && outbytesleft < sizeof(buf)) {
   82:           unsigned int jmax = sizeof(buf) - outbytesleft;
   83:           unsigned int j;
   84:           printf("0x");
   85:           for (j = 0; j < jmax; j++)
   86:             printf("%02X",buf[j]);
   87:           printf("\t0x%04X\n",i);
   88:         } else if (inbytesleft == 0 && i >= 0xe0000 && i < 0xe0080) {
   89:           /* Language tags may silently be dropped. */
   90:         } else {
   91:           fprintf(stderr,"0x%02X: inbytes = %ld, outbytes = %ld\n",i,(long)(sizeof(unsigned int)-inbytesleft),(long)(sizeof(buf)-outbytesleft));
   92:           exit(1);
   93:         }
   94:       }
   95:     }
   96:   }
   97: 
   98:   if (iconv_close(cd) < 0) {
   99:     perror("iconv_close");
  100:     exit(1);
  101:   }
  102: 
  103:   if (ferror(stdin) || ferror(stdout) || fclose(stdout)) {
  104:     fprintf(stderr,"I/O error\n");
  105:     exit(1);
  106:   }
  107: 
  108:   exit(0);
  109: }