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tetex-bin  3.0
Functions
t1subset.h File Reference
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Functions

char * T1_SubsetFont (int FontID, char *mask, unsigned int flags, int linewidth, unsigned long maxblocksize, unsigned long *bufsize)
char * T1_GetCharString (int FontID, char *charname, int *len)
int T1_GetlenIV (int FontID)

Function Documentation

char* T1_GetCharString ( int  FontID,
char *  charname,
int len 
)

Definition at line 881 of file t1subset.c.

{

  static char *charstring=NULL;
  
  if (T1_CheckForFontID(FontID)!=1) {
    T1_errno=T1ERR_INVALID_FONTID;
    return(NULL);
  } 
  
  if ( (charname==NULL) || (len==0) ) {
    T1_errno=T1ERR_INVALID_PARAMETER;
    return(NULL);
  } 

  if ((locateCharString( FontID, charname))==0) {
    *len=0;
    T1_errno=T1ERR_UNSPECIFIED;
    return( NULL);
  }
  
  if (charstring!=NULL) {
    free( charstring);
    charstring=NULL;
  }
  if ((charstring=(char *)malloc( charstringL))==NULL) {
    *len=0;
    T1_errno=T1ERR_ALLOC_MEM;
    return( NULL);
  }

  memcpy( charstring, charstringP, charstringL);
  *len=charstringL;
  return( charstring);
  
}

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int T1_GetlenIV ( int  FontID)

Definition at line 924 of file t1subset.c.

{
  
  if (T1_CheckForFontID(FontID)!=1) {
    T1_errno=T1ERR_INVALID_FONTID;
    return( -2);
  } 
  return( pFontBase->pFontArray[FontID].pType1Data->Private[LENIV].value.data.integer);

}

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char* T1_SubsetFont ( int  FontID,
char *  mask,
unsigned int  flags,
int  linewidth,
unsigned long  maxblocksize,
unsigned long *  bufsize 
)

Definition at line 200 of file t1subset.c.

{
  
  FILE *ifp;
  static char *filebuf=NULL;
  unsigned long filesize=0;
  int filesegs=0;
  
  char *outbuf=NULL;
  unsigned long outsize=0;
  char *encryptbuf=NULL;
  unsigned long encryptsize=0;
  int encryptsegs=0;
  char *trailerbuf=NULL;
  unsigned long trailersize=0;
  int trailersegs=0;
  char linebuf[1025];
  
  char *csdone;  /* stores which charstrings already have been written */
  int currstring_no=0;
  char *charnameP;
  unsigned char cipher;
  char rdstring[3];
  char ndstring[3];

  int retval=1;

  /* Indices. Could save a few but debugging becomes easier this way */
  int i=0;
  int j=0;
  int k=0;
  int l=0;
  int m=0;
  int n=0;
  int o=0;
  int p=0;
  
  
  int notdefencoded=0;
  int stdenc=0;
  int reencode=0;
  int colcount=0;
  int tr_len=-1;
  int encrypt=1;      /* 1=ASCII-hex, 2=Binary, 0=None (for debugging) */
  int dindex=0;
  int nocharstrings=0;
  char encmask[256];  /* Mask after resolving composite characters */
  T1_COMP_CHAR_INFO* cci = NULL;
  
  
  /* Otherwise we would get invalid accesses later */
  if (T1_CheckForFontID(FontID)!=1) {
    T1_errno=T1ERR_INVALID_FONTID;
    return(NULL);
  } 


  /* Check parameters */
  if ( (mask==NULL) || (bufsize==NULL) || (linewidth < 8) ||
       (linewidth > 1024) || (maxblocksize < 4) ) {
    T1_errno=T1ERR_INVALID_PARAMETER;
    return(NULL);
  } 


  /* First, we check how many characters have to find their way into the
     subsetted file. We take possibly existing composite character
     definitions by the user into account. */
  for ( j=0; j<256; j++) {
    if ( mask[j] != 0 ) {
      /* check whether addressed character is an internal character of
        the font */
      if ( cci != NULL )
       T1_FreeCompCharData( cci);
      
      cci = T1_GetCompCharData( FontID, j);
      
      if ( cci != NULL ) {
       nocharstrings += cci->numPieces;
      }
      else {
       ++nocharstrings;
      }
    }
  }
  

  /* adjust encrypting type according to flags. Default is ASCII-hex
     encryption because the output may be verbatim inserted into a
     PostScript-file. */
  if (flags & T1_SUBSET_ENCRYPT_BINARY)
    encrypt=2;
  else if (flags & T1_SUBSET_ENCRYPT_NONE)
    encrypt=0;
  
  /* Open and initialize scanning machinery */
  T1io_reset();
  if ((ifp = (FILE *)T1Open(T1_GetFontFilePath( FontID), "rb"))==NULL) {
    T1_errno=T1ERR_FILE_OPEN_ERR;
    return(NULL);
  }

  if (encrypt==0)
    sprintf( err_warn_msg_buf, "Subsetting Font %d, flags=0x%X, non-encrypted debug output",
            FontID, flags);
  else if (encrypt==1)
    sprintf( err_warn_msg_buf, "Subsetting Font %d, flags=0x%X, ASCII-hex output with linelength %d",
            FontID, flags, linewidth);
  else if (encrypt==2)
    sprintf( err_warn_msg_buf, "Subsetting Font %d, flags=0x%X, Binary output with maximum blocksize %lu",
            FontID, flags, maxblocksize);
  T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
              T1LOG_DEBUG);
  
  /* Get size of file */
  filesize=T1GetFileSize( ifp);
  sprintf( err_warn_msg_buf, "Source file %s is %lu bytes long",
          T1_GetFontFilePath( FontID), filesize);
  T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
              T1LOG_DEBUG);
  if ((filebuf=(char *)calloc( filesize, sizeof(char)))==NULL) {
    T1_errno=T1ERR_ALLOC_MEM;
    return( NULL);
  }

  while (retval>0) {
    /* get a line from the file. We have to read enough characters to
       ensure that "eexec" does not get split between two reads.
       Otherwise, decryption would not be started. */
    retval=T1Gets(&(filebuf[i]), 1025, ifp);
    
    i+=retval;
    if ( (dindex==0) && (T1GetDecrypt()>0) ) {
      dindex=i-retval; /* from this point on we have decrypted bytes */
      sprintf( err_warn_msg_buf, "Human-readable header finished (%d data bytes)",
              dindex);
      T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
                 T1LOG_DEBUG);
    }
    
    /* Encoding handling */
    if (strstr( &(filebuf[i-retval]), "/Encoding")!=NULL) {
      if (strstr( &(filebuf[i-retval]), "StandardEncoding")!=NULL) {
       stdenc=1;
       if ((flags & T1_SUBSET_FORCE_REENCODE)!=0) {
         /* we ignore the current line ... */
         i-=retval;
         /* and put the encoding header into the buffer */
         i+=sprintf( &(filebuf[i]),
                    "/Encoding 256 array\n0 1 255 {1 index exch /.notdef put} for\n"
                    );
         reencode=1;
       }
       else {
         T1_PrintLog( "T1_SubsetFont()", "Leaving StandardEncoding untouched",
                     T1LOG_DEBUG);
         reencode=0;
       }
      }
      else {
       /* The encoding is explicitly defined in the font file. We skip the
          whole definition unless reencoding should be skipped. */
       stdenc=0;
       retval=T1Gets(&(filebuf[i]), 1025, ifp);
       i+=retval;
       while (retval>0) {
         /* get a line and check for end of encoding definition. */
         retval=T1Gets(&(filebuf[i]), 1025, ifp);
         if ((flags & T1_SUBSET_SKIP_REENCODE)!=0) { /* we store the encoding
                                                  defined here */
           i+=retval;
           reencode=0;
         }
         else {
           reencode=1;
         }
         if ( (dindex==0) && (T1GetDecrypt()>0) ) {
           dindex=i; /* from this point we have decrypted bytes */
         }  
         if (strstr( &(filebuf[i-retval]), "readonly def")!=NULL) {
           break;
         }
       }
       if (reencode==0)
         T1_PrintLog( "T1_SubsetFont()", "Preserving FontSpecific Encoding",
                     T1LOG_DEBUG);
      }
      
      /* At this point, if required, the actual encoding definition
        follows. */
      if ( reencode!=0) {
       k=0;

       /* Reset resulting encoding mask */ 
       for ( j=0; j<256; j++) {
         encmask[j] = 0;
       }

       /* Resolve composite characters and their components */
       for ( j=0; j<256; j++) {
         if (mask[j]!=0) {
           if ( cci != NULL)
             T1_FreeCompCharData( cci);
           cci = T1_GetCompCharData( FontID, j);
           if ( (cci != NULL) && (cci->numPieces > 1) ) {
             /* Tag all components that are required to construct
               the composite character j. */
             for ( p=0; p<cci->numPieces; p++) {
              encmask[cci->pieces[p].piece] = 1;
             }
           }
           /* Tag character j in encoding definition */
           encmask[j] = 1;
         }
       }

       /* Write actually required encoding slots */
       for ( j=0; j<256; j++) {
         if (encmask[j]!=0) {
           charnameP=T1_GetCharName( FontID, j);
           i+=sprintf( &(filebuf[i]), "dup %d /%s put\n", j,
                     charnameP);
           k++;
           if (strcmp(charnameP, ".notdef")==0)
             notdefencoded=1;
         }
       }

       /* finish encoding definition */
       i+=sprintf( &(filebuf[i]), "readonly def\n");
       sprintf( err_warn_msg_buf, "Encoded %d characters",
               k);
       T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
                   T1LOG_DEBUG);
       k=0;
      }
      
    } /* end of    if (...encoding handling...)    */

    /* Extract the names are used for the charstring definitions.
       We will later need them! */
    if (strstr( &(filebuf[i-retval]), "/RD")!=NULL) {
      sprintf( rdstring, "RD");
    }
    if (strstr( &(filebuf[i-retval]), "/ND")!=NULL) {
      sprintf( ndstring, "ND");
    }
    if (strstr( &(filebuf[i-retval]), "/-|")!=NULL) {
      sprintf( rdstring, "-|");
    }
    if (strstr( &(filebuf[i-retval]), "/|-")!=NULL) {
      sprintf( ndstring, "|-");
    }
      
    if (strstr( &(filebuf[i-retval]), "/CharStrings")!=NULL) {
      /* replace dictionary with one of an appropriate size: */
      i -=retval;
      sprintf( err_warn_msg_buf, "Private dictionary finished (%u data bytes)",
              i-dindex);
      T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
                 T1LOG_DEBUG);
      /* if .notdef is not in the encoding mask, we have to reserve
        room for the additional charstring .notdef. Note that still
        nocharstrings is an upper bound estimation, which is reached
        in cases where no characters are encoded more than one time. */
      if (notdefencoded==0)
       nocharstrings++;
      
      i+=sprintf( &(filebuf[i]), "2 index /CharStrings %d dict dup begin\n",
                nocharstrings);
      break;
    }
  } /* the portion until Charstrings-dict is now read in */
  
  
  /* We now have to write the CharStrings.
     Each charstring must be written once, even if the respective 
     character appears more than once in the encoding. So we set up
     table to remember which charstrings already have been written.

     Note: The indices returned by locateCharString() range from 1 to n, so that
     we have to decrement the index when filling the csdone array!
  */
  if (( csdone=(char *)calloc( pFontBase->pFontArray[FontID].pType1Data->CharStringsP[0].key.len,
                            sizeof(char)))==NULL) {
    T1_errno=T1ERR_ALLOC_MEM;
    free( filebuf);
    T1Close( ifp);
    return( NULL);
  }
  
  /* The .notdef character is in force! */
  if ((currstring_no=locateCharString( FontID, ".notdef"))==0) {
    T1_errno=T1ERR_UNSPECIFIED;
    free( csdone);
    T1Close( ifp);
    return( NULL);
  }
  i+=sprintf( &(filebuf[i]), "/.notdef %d %s ", charstringL, rdstring);
  memcpy(&(filebuf[i]), charstringP, charstringL);
  i+=charstringL;
  i+=sprintf( &(filebuf[i]), " %s\n", ndstring);
  csdone[currstring_no-1]=1;
  /* Now, step through the specifier matrix and write only the
     necessary charstrings. */
  for ( j=0; j<256; j++) {
    if (mask[j]!=0) {
      charnameP=T1_GetCharName( FontID, j);
      if ((currstring_no=locateCharString( FontID, charnameP))==0) {
       /* This might be a composite character, check and handle this case ... */
       if ( cci != NULL )
         T1_FreeCompCharData( cci);
       
       cci = T1_GetCompCharData( FontID, j);
       if ( (cci != NULL) && (cci->numPieces > 1) ) {
         /* composite character, loop through pieces and look for the components */
         for ( p=0; p<cci->numPieces; p++) {
           
           charnameP=T1_GetCharName( FontID, cci->pieces[p].piece);
           if ((currstring_no=locateCharString( FontID, charnameP))==0) {
             /* Character component not found. Try next ... */
             T1_PrintLog( "T1_SubsetFont()", "Could not locate component CS ""%s"" for index %d",
                        T1LOG_WARNING, charnameP, cci->pieces[p].piece);
           }
           else {
             /* Add component to subset and process charstring only if it has not
               already been done */
             if (csdone[currstring_no-1]==0) {
              k=i;
              i+=sprintf( &(filebuf[i]), "/%s %d %s ", charnameP, charstringL, rdstring);
              memcpy(&(filebuf[i]), charstringP, charstringL);
              i+=charstringL;
              i+=sprintf( &(filebuf[i]), " %s\n", ndstring);
              csdone[currstring_no-1]=1;
              T1_PrintLog( "T1_SubsetFont()",
                          "Processing of component CS ""%s"" for index %d successful (len=%d bytes, line=%d bytes)",
                          T1LOG_DEBUG, charnameP, cci->pieces[p].piece, charstringL, i-k);
             }
             else {
              sprintf( err_warn_msg_buf, "Skipped multiple processing of component CS ""%s"" (index %d)",
                      charnameP, cci->pieces[p].piece);
              T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
                          T1LOG_DEBUG);
             }
           }
         }
         continue;
       }
       else {
         /* Character not found and no composite. This is mysterious, but causes no harm
            because .notdef will be substituted */
         sprintf( err_warn_msg_buf, "Could not locate CS ""%s"" for index %d",
                 charnameP, j);
         T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
                     T1LOG_WARNING);
         continue;
       }
       
      }
      /* Process charstring only if it has not already been done */
      if (csdone[currstring_no-1]==0) {
       k=i;
       i+=sprintf( &(filebuf[i]), "/%s %d %s ", charnameP, charstringL, rdstring);
       memcpy(&(filebuf[i]), charstringP, charstringL);
       i+=charstringL;
       i+=sprintf( &(filebuf[i]), " %s\n", ndstring);
       csdone[currstring_no-1]=1;
       sprintf( err_warn_msg_buf,
               "Processing of CS ""%s"" for index %d successful (len=%d bytes, line=%d bytes)",
               charnameP, j, charstringL, i-k);
       T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
                   T1LOG_DEBUG);
      }
      else {
       sprintf( err_warn_msg_buf, "Skipped multiple processing of CS ""%s"" (index %d)",
               charnameP, j);
       T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
                   T1LOG_DEBUG);
      }
    }
  }

  /* Get rid of temporary data */
  if (csdone!=NULL) {
    free( csdone);
    csdone = NULL;
  }
  if ( cci != NULL ) {
    free( cci);
    cci = NULL;
  }

  /* All charstrings are written. Some PostScript code follows */
  i+=sprintf( &(filebuf[i]),
             "end\nend\nreadonly put\nnoaccess put\ndup /FontName get exch definefont pop\nmark currentfile closefile\n");
  sprintf( err_warn_msg_buf,
          "Charstrings and Font definition finished (%d data bytes, from which %d bytes will be encrypted)",
          i, i-dindex);
  T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
              T1LOG_DEBUG);
  
  /* we compute the size of the encrypted area. */
  if (encrypt==1) {
    encryptsize=i-dindex;
    encryptsize+=4;       /* the four random bytes */
    encryptsize*=2;       /* since we use ASCII-hex output */
    encryptsize+=(int)ceil((double)encryptsize/linewidth); /* we need a few newline characters
                                        to adjust the output format */
  }
  else if (encrypt==2) { /* binary encryption. The whole data is contiguous
                         and only at the end of the data a newline is
                         added. */
    encryptsize=i-dindex+1;
    encryptsize+=4;       /* the four random bytes */
  }
  else { /*The case of no encryption does not produce
          valid fonts, it is for debugging purposes only */
    encryptsize=i-dindex+1;
  }
  
  
  /* we add the size of the 512 zeros and the cleartomark */
  trailersize+=ZEROS;
  trailersize+=(int)ceil((double)ZEROS/linewidth);
  trailersize+=12;                /* cleartomark */

  /* Search for remaining PostScript code in the last 1024 bytes. This
     should suffice for any font. */
  tr_len=T1GetTrailer( linebuf, 1025, ifp);
  T1Close(ifp);  /* we do not need the file any longer */
  
  /* And we add the size of the trailer. A trailer only consisting of
     a newline is ignored because the newline has already been included
     in the cleartomark-string. */
  if ( !((tr_len==1) && ((linebuf[0]=='\n') || (linebuf[0]=='\r')) ) ) {
    trailersize+=tr_len;
  }
  
  
  if ((encryptbuf=(char *)calloc( encryptsize, 1))==NULL) {
    T1_errno=T1ERR_ALLOC_MEM;
    free( filebuf);
    return( NULL);
  }
  
  /* Allocate one byte in orer to be able to use sprintf() (which appends
     an ASCII-\0).*/
  if ((trailerbuf=(char *)calloc( trailersize+1, 1))==NULL) {
    T1_errno=T1ERR_ALLOC_MEM;
    free( filebuf);
    free( encryptbuf);
    return( NULL);
  }
  
  k=0;
  colcount=0;

  /* perform eexec-encryption */
  eexec_r=55665;
  if (encrypt==0) {
    for (j=dindex; j<i; j++) {
      encryptbuf[k++]=filebuf[j];
    }
  }
  else if ( encrypt==1) {
    /* consume four random bytes. We take the numbers '0', '1', '2'
       and '3'. The first cipher then is 217-dec (0xD9-hex), i.e., it
       is no white space character. The resulting font can thus be
       converted to pfb-format without the risk violating the Adobe spec.*/
    for (j=0; j<4; j++) { 
      cipher=EexecEncrypt( (unsigned char) j);  
      encryptbuf[k++]=highHexByte[cipher];
      if (++colcount==linewidth) {
       colcount=0;
       encryptbuf[k++]='\n';
      }
      encryptbuf[k++]=lowHexByte[cipher];
      if (++colcount==linewidth) {
       colcount=0;
       encryptbuf[k++]='\n';
      }
    }
    for (j=dindex; j<i; j++) {
      cipher=EexecEncrypt( (unsigned char) filebuf[j]);
      encryptbuf[k++]=highHexByte[cipher];
      if (++colcount==linewidth) {
       colcount=0;
       encryptbuf[k++]='\n';
      }
      encryptbuf[k++]=lowHexByte[cipher];
      if (++colcount==linewidth) {
       colcount=0;
       encryptbuf[k++]='\n';
      }
    }
    /* If necessary, append newline char */
    if (encryptbuf[k-1]!='\n') {
      encryptbuf[k++]='\n';
    }
  } /* if encrypt==1 */
  else { /* four random bytes ... */
    for (j=0; j<4; j++) { 
      encryptbuf[k++]=EexecEncrypt( (unsigned char) j);  
    }
    for (j=dindex; j<i; j++) { /* and encrypted charstrings */
      encryptbuf[k++]=EexecEncrypt( (unsigned char) filebuf[j]);  
    }
  } /* encrypt == 2 */
  /* Encryption finished */
  
  /* If necessary, append newline char */
  if (encryptbuf[k-1]!='\n') {
    encryptbuf[k++]='\n';
  }

  colcount=0;
  /* Append zeroes and cleartomark */
  for (j=0; j<ZEROS; j++) {
    trailerbuf[l++]='0';
    if (++colcount==linewidth) {
      colcount=0;
      trailerbuf[l++]='\n';
    }
  }
  /* If necessary, append newline char */
  if (trailerbuf[l-1]!='\n') {
    trailerbuf[l++]='\n';
  }
  l+=sprintf( &(trailerbuf[l]), "cleartomark\n");
  if ( !((tr_len==1) && ((linebuf[0]=='\n') || (linebuf[0]=='\r')) ) ) {
    sprintf( err_warn_msg_buf,
            "Including additional PostScript trailer (%d bytes)",
            tr_len);
    T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
               T1LOG_DEBUG);
    l+=sprintf( &(trailerbuf[l]), linebuf); /* contains the PostScript trailer */
  }
  
  /* compute size of output file */
  outsize=0;
  if (encrypt==2) { /* binary encryption, take care about pfb-blocks */ 
    /* each segment requires 6 bytes for the header */
    filesegs=(int)(ceil((double)dindex/maxblocksize));
    encryptsegs=(int)(ceil((double)k/maxblocksize));
    trailersegs=(int)(ceil((double)l/maxblocksize));
    /* trainling ASCII-part: */
    outsize +=dindex;
    /* binary encrypted data */
    outsize +=k;
    /* leading ASCII-part: */
    outsize +=l;
    /* segment headers */
    outsize +=6*(filesegs+encryptsegs+trailersegs);
    outsize +=2;  /* the EOF-marker segment */
  }
  else { /* ASCII-hex encryption or no encryption: no segmentation */
    outsize=dindex+k+l;
  }
  
  if ((outbuf=(char *)calloc( outsize, 1))==NULL) {
    T1_errno=T1ERR_ALLOC_MEM;
    free( filebuf);
    free( encryptbuf);
    free( trailerbuf);
    return( NULL);
  }



  /* The full bufsize is given as the unencrypted portion plus size
     of encryptbuf (which also inccorporates an unencrypted trailer).
     In addition, the segment headers have to be taken into account for
     pfb-format. */
  i=0;
  if (encrypt==2) { /* we have to add segment headers */
    T1_PrintLog( "T1_SubsetFont()", "Setting up segmented binary buffer (pfb-format)",
               T1LOG_DEBUG);
    /* Clear text header */
    m=0;
    for ( j=0; j<filesegs; j++) {
      if (j==filesegs-1)
       n=dindex % maxblocksize;
      else
       n=maxblocksize;
      i +=make_pfb_segment_header( &(outbuf[i]), SEGMENT_ASCII, n);
      memcpy( &(outbuf[i]), &(filebuf[m]), n);
      i +=n;
      m +=n;
    }
    sprintf( err_warn_msg_buf,
            "    Readable header (%d bytes: %d data bytes in %d ASCII-segments of maximum size %lu bytes)",
            i, dindex, filesegs, maxblocksize);
    T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
               T1LOG_DEBUG);
    /* Binary data */
    m=0;
    o=i;
    for ( j=0; j<encryptsegs; j++) {
      if (j==encryptsegs-1)
       n=k % maxblocksize;
      else
       n=maxblocksize;
      i +=make_pfb_segment_header( &(outbuf[i]), SEGMENT_BINARY, n);
      memcpy( &(outbuf[i]), &(encryptbuf[m]), n);
      i +=n;
      m +=n;
    }
    sprintf( err_warn_msg_buf,
            "    Binary data (%d bytes: %d data bytes in %d binary segments of maximum size %lu bytes)",
            i-o, k, encryptsegs, maxblocksize);
    T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
               T1LOG_DEBUG);
    /* Readable ASCII-trailer */
    m=0;
    o=i;
    for ( j=0; j<trailersegs; j++) {
      if (j==trailersegs-1)
       n=l % maxblocksize;
      else
       n=maxblocksize;
      i +=make_pfb_segment_header( &(outbuf[i]), SEGMENT_ASCII, n);
      memcpy( &(outbuf[i]), &(trailerbuf[m]), n);
      i +=n;
      m +=n;
    }
    sprintf( err_warn_msg_buf,
            "    Readable trailer (%d bytes: %d data bytes in %d ASCII-segments of maximum size %lu bytes)",
            i-o, l, trailersegs, maxblocksize);
    T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
               T1LOG_DEBUG);
    i +=make_pfb_segment_header( &(outbuf[i]), SEGMENT_EOF, 0);
    sprintf( err_warn_msg_buf,
            "    EOF-segment marker (2 bytes)");
    T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
               T1LOG_DEBUG);
    *bufsize=i;
  } /* end of pfb-setup */
  else { /* we continuously copy the data */
    if (encrypt==1)
      sprintf( err_warn_msg_buf,
              "Dumping output buffer (%d bytes: %d readable ASCII, %d ASCII-hex in lines of width %d, %d readable ASCII)",
              dindex+k+l, dindex, k, linewidth, l);
    else 
      sprintf( err_warn_msg_buf,
              "Dumping output buffer (%d bytes: %d readable ASCII, %d non-encrypted binary, %d readable ASCII)",
              dindex+k+l, dindex, k, l);
    T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
               T1LOG_DEBUG);
    memcpy( outbuf, filebuf, dindex);
    memcpy( &(outbuf[dindex]), encryptbuf, k);
    memcpy( &(outbuf[dindex+k]), trailerbuf, l);
    *bufsize=dindex+k+l;
  }
  
  sprintf( err_warn_msg_buf,
          "Output buffer is %ld bytes, original file size is %lu bytes",
          *bufsize, filesize);
  T1_PrintLog( "T1_SubsetFont()", err_warn_msg_buf,
              T1LOG_DEBUG);
  
  
  if (encryptbuf!=NULL)
    free(encryptbuf);
  if (trailerbuf!=NULL)
    free(trailerbuf);
  if (filebuf!=NULL)
    free( filebuf);

  return( outbuf);
  
}

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