Commit message: https://github.com/ImageMagick/ImageMagick/issues/1190
CVE: CVE-2018-14437
CWE: CWE-772
Vulnerability description: ImageMagick 7.0.8-4 has a memory leak in parse8BIM in coders/meta.c.

Project: ImageMagick6
File: meta.c

static int formatIPTCfromBuffer(Image *ofile, char *s, ssize_t len)
{
  char
    temp[MaxTextExtent];

  unsigned int
    foundiptc,
    tagsfound;

  unsigned char
    recnum,
    dataset;

  unsigned char
    *readable,
    *str;

  ssize_t
    tagindx,
    taglen;

  int
    i,
    tagcount = (int) (sizeof(tags) / sizeof(tag_spec));

  int
    c;

  foundiptc = 0; /* found the IPTC-Header */
  tagsfound = 0; /* number of tags found */

  while (len > 0)
  {
    c = *s++; len--;
    if (c == 0x1c)
      foundiptc = 1;
    else
      {
        if (foundiptc)
          return -1;
        else
          continue;
      }
    /*
      We found the 0x1c tag and now grab the dataset and record number tags.
    */
    c = *s++; len--;
    if (len < 0) return -1;
    dataset = (unsigned char) c;
    c = *s++; len--;
    if (len < 0) return -1;
    recnum = (unsigned char) c;
    /* try to match this record to one of the ones in our named table */
    for (i=0; i< tagcount; i++)
      if (tags[i].id == (short) recnum)
        break;
    if (i < tagcount)
      readable=(unsigned char *) tags[i].name;
    else
      readable=(unsigned char *) "";
    /*
      We decode the length of the block that follows - ssize_t or short fmt.
    */
    c=(*s++);
    len--;
    if (len < 0)
      return(-1);
    if (c & (unsigned char) 0x80)
      return(0);
    else
      {
        s--;
        len++;
        taglen=readWordFromBuffer(&s, &len);
      }
    if (taglen < 0)
      return(-1);
    if (taglen > 65535)
      return(-1);
    /* make a buffer to hold the tag datand snag it from the input stream */
    str=(unsigned char *) AcquireQuantumMemory((size_t) (taglen+MaxTextExtent),
      sizeof(*str));
    if (str == (unsigned char *) NULL)
      return 0;
    for (tagindx=0; tagindx<taglen; tagindx++)
    {
      c = *s++; len--;
      if (len < 0)
        {
          str=(unsigned char *) RelinquishMagickMemory(str);
          return(-1);
        }
      str[tagindx]=(unsigned char) c;
    }
    str[taglen]=0;

    /* now finish up by formatting this binary data into ASCII equivalent */
    if (strlen((char *)readable) > 0)
      (void) FormatLocaleString(temp,MaxTextExtent,"%d#%d#%s=",
        (unsigned int) dataset,(unsigned int) recnum, readable);
    else
      (void) FormatLocaleString(temp,MaxTextExtent,"%d#%d=",
        (unsigned int) dataset,(unsigned int) recnum);
    (void) WriteBlobString(ofile,temp);
    formatString( ofile, (char *)str, taglen );
    str=(unsigned char *) RelinquishMagickMemory(str);

    tagsfound++;
  }
  return ((int) tagsfound);
}

Project: ImageMagick6
File: meta.c

static int format8BIM(Image *ifile, Image *ofile)
{
  char
    temp[MaxTextExtent];

  unsigned int
    foundOSType;

  int
    ID,
    resCount,
    i,
    c;

  ssize_t
    count;

  unsigned char
    *PString,
    *str;

  resCount=0;
  foundOSType=0; /* found the OSType */
  (void) foundOSType;
  c=ReadBlobByte(ifile);
  while (c != EOF)
  {
    if (c == '8')
      {
        unsigned char
          buffer[5];

        buffer[0]=(unsigned char) c;
        for (i=1; i<4; i++)
        {
          c=ReadBlobByte(ifile);
          if (c == EOF)
            return(-1);
          buffer[i] = (unsigned char) c;
        }
        buffer[4]=0;
        if (strcmp((const char *)buffer, "8BIM") == 0)
          foundOSType=1;
        else
          continue;
      }
    else
      {
        c=ReadBlobByte(ifile);
        continue;
      }
    /*
      We found the OSType (8BIM) and now grab the ID, PString, and Size fields.
    */
    ID=ReadBlobMSBSignedShort(ifile);
    if (ID < 0)
      return(-1);
    {
      unsigned char
        plen;

      c=ReadBlobByte(ifile);
      if (c == EOF)
        return(-1);
      plen = (unsigned char) c;
      PString=(unsigned char *) AcquireQuantumMemory((size_t) (plen+
        MaxTextExtent),sizeof(*PString));
      if (PString == (unsigned char *) NULL)
        return 0;
      for (i=0; i<plen; i++)
      {
        c=ReadBlobByte(ifile);
        if (c == EOF)
          {
            PString=(unsigned char *) RelinquishMagickMemory(PString);
            return(-1);
          }
        PString[i] = (unsigned char) c;
      }
      PString[ plen ] = 0;
      if ((plen & 0x01) == 0)
      {
        c=ReadBlobByte(ifile);
        if (c == EOF)
          {
            PString=(unsigned char *) RelinquishMagickMemory(PString);
            return(-1);
          }
      }
    }
    count=(ssize_t) ReadBlobMSBSignedLong(ifile);
    if ((count < 0) || (count > GetBlobSize(ifile)))
      {
        PString=(unsigned char *) RelinquishMagickMemory(PString);
        return(-1);
      }
    /* make a buffer to hold the data and snag it from the input stream */
    str=(unsigned char *) AcquireQuantumMemory((size_t) count+1,sizeof(*str));
    if (str == (unsigned char *) NULL)
      {
        PString=(unsigned char *) RelinquishMagickMemory(PString);
        return 0;
      }
    for (i=0; i < (ssize_t) count; i++)
    {
      c=ReadBlobByte(ifile);
      if (c == EOF)
        {
          str=(unsigned char *) RelinquishMagickMemory(str);
          PString=(unsigned char *) RelinquishMagickMemory(PString);
          return(-1);
        }
      str[i]=(unsigned char) c;
    }

    /* we currently skip thumbnails, since it does not make
     * any sense preserving them in a real world application
     */
    if (ID != THUMBNAIL_ID)
      {
        /* now finish up by formatting this binary data into
         * ASCII equivalent
         */
        if (strlen((const char *)PString) > 0)
          (void) FormatLocaleString(temp,MaxTextExtent,"8BIM#%d#%s=",ID,
            PString);
        else
          (void) FormatLocaleString(temp,MaxTextExtent,"8BIM#%d=",ID);
        (void) WriteBlobString(ofile,temp);
        if (ID == IPTC_ID)
          {
            formatString(ofile, "IPTC", 4);
            formatIPTCfromBuffer(ofile, (char *)str, (ssize_t) count);
          }
        else
          formatString(ofile, (char *)str, (ssize_t) count);
      }
    str=(unsigned char *) RelinquishMagickMemory(str);
    PString=(unsigned char *) RelinquishMagickMemory(PString);
    resCount++;
    c=ReadBlobByte(ifile);
  }
  return resCount;
}

Project: ImageMagick6
File: meta.c

ModuleExport size_t RegisterMETAImage(void)
{
  MagickInfo
    *entry;

  entry=SetMagickInfo("8BIM");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("Photoshop resource format");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("8BIMTEXT");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("Photoshop resource text format");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("8BIMWTEXT");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("Photoshop resource wide text format");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("APP1");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("Raw application information");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("APP1JPEG");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("Raw JPEG binary data");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("EXIF");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("Exif digital camera binary data");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("XMP");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("Adobe XML metadata");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("ICM");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("ICC Color Profile");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("ICC");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("ICC Color Profile");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("IPTC");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("IPTC Newsphoto");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("IPTCTEXT");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("IPTC Newsphoto text format");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  entry=SetMagickInfo("IPTCWTEXT");
  entry->decoder=(DecodeImageHandler *) ReadMETAImage;
  entry->encoder=(EncodeImageHandler *) WriteMETAImage;
  entry->adjoin=MagickFalse;
  entry->stealth=MagickTrue;
  entry->seekable_stream=MagickTrue;
  entry->description=ConstantString("IPTC Newsphoto text format");
  entry->module=ConstantString("META");
  (void) RegisterMagickInfo(entry);
  return(MagickImageCoderSignature);
}

Project: ImageMagick6
File: meta.c

static void CopyBlob(Image *source,Image *destination)
{
  ssize_t
    i;

  unsigned char
    *buffer;

  ssize_t
    count,
    length;

  buffer=(unsigned char *) AcquireQuantumMemory(MagickMaxBufferExtent,
    sizeof(*buffer));
  if (buffer != (unsigned char *) NULL)
    {
      i=0;
      while ((length=ReadBlob(source,MagickMaxBufferExtent,buffer)) != 0)
      {
        count=0;
        for (i=0; i < (ssize_t) length; i+=count)
        {
          count=WriteBlob(destination,(size_t) (length-i),buffer+i);
          if (count <= 0)
            break;
        }
        if (i < (ssize_t) length)
          break;
      }
      buffer=(unsigned char *) RelinquishMagickMemory(buffer);
    }
}

Project: ImageMagick6
File: meta.c

static ssize_t parse8BIM(Image *ifile, Image *ofile)
{
  char
    brkused,
    quoted,
    *line,
    *token,
    *newstr,
    *name;

  int
    state,
    next;

  unsigned char
    dataset;

  unsigned int
    recnum;

  int
    inputlen = MaxTextExtent;

  MagickOffsetType
    savedpos,
    currentpos;

  ssize_t
    savedolen = 0L,
    outputlen = 0L;

  TokenInfo
    *token_info;

  dataset = 0;
  recnum = 0;
  line = (char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*line));
  if (line == (char *) NULL)
    return(-1);
  newstr = name = token = (char *) NULL;
  savedpos = 0;
  token_info=AcquireTokenInfo();
  while (super_fgets(&line,&inputlen,ifile)!=NULL)
  {
    state=0;
    next=0;

    token=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*token));
    if (token == (char *) NULL)
      break;
    newstr=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*newstr));
    if (newstr == (char *) NULL)
      break;
    while (Tokenizer(token_info,0,token,(size_t) inputlen,line,"","=","\"",0,
           &brkused,&next,&quoted)==0)
    {
      if (state == 0)
        {
          int
            state,
            next;

          char
            brkused,
            quoted;

          state=0;
          next=0;
          while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","#",
            "", 0,&brkused,&next,&quoted)==0)
          {
            switch (state)
            {
              case 0:
                if (strcmp(newstr,"8BIM")==0)
                  dataset = 255;
                else
                  dataset = (unsigned char) StringToLong(newstr);
                break;
              case 1:
                recnum = (unsigned int) StringToUnsignedLong(newstr);
                break;
              case 2:
                name=(char *) AcquireQuantumMemory(strlen(newstr)+MaxTextExtent,
                  sizeof(*name));
                if (name)
                  (void) strcpy(name,newstr);
                break;
            }
            state++;
          }
        }
      else
        if (state == 1)
          {
            int
              next;

            ssize_t
              len;

            char
              brkused,
              quoted;

            next=0;
            len = (ssize_t) strlen(token);
            while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","&",
              "",0,&brkused,&next,&quoted)==0)
            {
              if (brkused && next > 0)
                {
                  size_t
                    codes_length;

                  char
                    *s = &token[next-1];

                  codes_length=convertHTMLcodes(s, strlen(s));
                  if ((ssize_t) codes_length > len)
                    len=0;
                  else
                    len-=codes_length;
                }
            }

            if (dataset == 255)
              {
                unsigned char
                  nlen = 0;

                int
                  i;

                if (savedolen > 0)
                  {
                    MagickOffsetType
                      offset;

                    ssize_t diff = outputlen - savedolen;
                    currentpos = TellBlob(ofile);
                    if (currentpos < 0)
                      {
                        line=DestroyString(line);
                        return(-1);
                      }
                    offset=SeekBlob(ofile,savedpos,SEEK_SET);
                    if (offset < 0)
                      {
                        line=DestroyString(line);
                        return(-1);
                      }
                    (void) WriteBlobMSBLong(ofile,(unsigned int) diff);
                    offset=SeekBlob(ofile,currentpos,SEEK_SET);
                    if (offset < 0)
                      {
                        line=DestroyString(line);
                        return(-1);
                      }
                    savedolen = 0L;
                  }
                if (outputlen & 1)
                  {
                    (void) WriteBlobByte(ofile,0x00);
                    outputlen++;
                  }
                (void) WriteBlobString(ofile,"8BIM");
                (void) WriteBlobMSBShort(ofile,(unsigned short) recnum);
                outputlen += 6;
                if (name)
                  nlen = (unsigned char) strlen(name);
                (void) WriteBlobByte(ofile,nlen);
                outputlen++;
                for (i=0; i<nlen; i++)
                  (void) WriteBlobByte(ofile,(unsigned char) name[i]);
                outputlen += nlen;
                if ((nlen & 0x01) == 0)
                  {
                    (void) WriteBlobByte(ofile,0x00);
                    outputlen++;
                  }
                if (recnum != IPTC_ID)
                  {
                    (void) WriteBlobMSBLong(ofile, (unsigned int) len);
                    outputlen += 4;

                    next=0;
                    outputlen += len;
                    while (len-- > 0)
                      (void) WriteBlobByte(ofile,(unsigned char) token[next++]);

                    if (outputlen & 1)
                      {
                        (void) WriteBlobByte(ofile,0x00);
                        outputlen++;
                      }
                  }
                else
                  {
                    /* patch in a fake length for now and fix it later */
                    savedpos = TellBlob(ofile);
                    if (savedpos < 0)
                      return(-1);
                    (void) WriteBlobMSBLong(ofile,0xFFFFFFFFU);
                    outputlen += 4;
                    savedolen = outputlen;
                  }
              }
            else
              {
                if (len <= 0x7FFF)
                  {
                    (void) WriteBlobByte(ofile,0x1c);
                    (void) WriteBlobByte(ofile,(unsigned char) dataset);
                    (void) WriteBlobByte(ofile,(unsigned char) (recnum & 0xff));
                    (void) WriteBlobMSBShort(ofile,(unsigned short) len);
                    outputlen += 5;
                    next=0;
                    outputlen += len;
                    while (len-- > 0)
                      (void) WriteBlobByte(ofile,(unsigned char) token[next++]);
                  }
              }
          }
      state++;
    }
    if (token != (char *) NULL)
      token=DestroyString(token);
    if (newstr != (char *) NULL)
      newstr=DestroyString(newstr);
    if (name != (char *) NULL)
      name=DestroyString(name);
  }
  token_info=DestroyTokenInfo(token_info);
  if (token != (char *) NULL)
    token=DestroyString(token);
  if (newstr != (char *) NULL)
    newstr=DestroyString(newstr);
  if (name != (char *) NULL)
    name=DestroyString(name);
  line=DestroyString(line);
  if (savedolen > 0)
    {
      MagickOffsetType
        offset;

      ssize_t diff = outputlen - savedolen;

      currentpos = TellBlob(ofile);
      if (currentpos < 0)
        return(-1);
      offset=SeekBlob(ofile,savedpos,SEEK_SET);
      if (offset < 0)
        return(-1);
      (void) WriteBlobMSBLong(ofile,(unsigned int) diff);
      offset=SeekBlob(ofile,currentpos,SEEK_SET);
      if (offset < 0)
        return(-1);
      savedolen = 0L;
    }
  return(outputlen);
}

Project: ImageMagick6
File: meta.c

static int formatIPTC(Image *ifile, Image *ofile)
{
  char
    temp[MaxTextExtent];

  unsigned int
    foundiptc,
    tagsfound;

  unsigned char
    recnum,
    dataset;

  unsigned char
    *readable,
    *str;

  ssize_t
    tagindx,
    taglen;

  int
    i,
    tagcount = (int) (sizeof(tags) / sizeof(tag_spec));

  int
    c;

  foundiptc = 0; /* found the IPTC-Header */
  tagsfound = 0; /* number of tags found */

  c = ReadBlobByte(ifile);
  while (c != EOF)
  {
    if (c == 0x1c)
      foundiptc=1;
    else
      {
        if (foundiptc)
          return(-1);
        else
          {
            c=0;
            continue;
          }
      }

    /* we found the 0x1c tag and now grab the dataset and record number tags */
    c = ReadBlobByte(ifile);
    if (c == EOF)
      return(-1);
    dataset = (unsigned char) c;
    c = ReadBlobByte(ifile);
    if (c == EOF)
      return(-1);
    recnum = (unsigned char) c;
    /* try to match this record to one of the ones in our named table */
    for (i=0; i< tagcount; i++)
    {
      if (tags[i].id == (short) recnum)
          break;
    }
    if (i < tagcount)
      readable = (unsigned char *) tags[i].name;
    else
      readable = (unsigned char *) "";
    /*
      We decode the length of the block that follows - ssize_t or short fmt.
    */
    c=ReadBlobByte(ifile);
    if (c == EOF)
      return(-1);
    if (c & (unsigned char) 0x80)
      return(0);
    else
      {
        int
          c0;

        c0=ReadBlobByte(ifile);
        if (c0 == EOF)
          return(-1);
        taglen = (c << 8) | c0;
      }
    if (taglen < 0)
      return(-1);
    /* make a buffer to hold the tag datand snag it from the input stream */
    str=(unsigned char *) AcquireQuantumMemory((size_t) (taglen+MaxTextExtent),
      sizeof(*str));
    if (str == (unsigned char *) NULL)
      {
        (void) printf("MemoryAllocationFailed");
        return 0;
      }
    for (tagindx=0; tagindx<taglen; tagindx++)
    {
      c=ReadBlobByte(ifile);
      if (c == EOF)
        {
          str=(unsigned char *) RelinquishMagickMemory(str);
          return(-1);
        }
      str[tagindx] = (unsigned char) c;
    }
    str[taglen] = 0;

    /* now finish up by formatting this binary data into ASCII equivalent */
    if (strlen((char *)readable) > 0)
      (void) FormatLocaleString(temp,MaxTextExtent,"%d#%d#%s=",
        (unsigned int) dataset, (unsigned int) recnum, readable);
    else
      (void) FormatLocaleString(temp,MaxTextExtent,"%d#%d=",
        (unsigned int) dataset,(unsigned int) recnum);
    (void) WriteBlobString(ofile,temp);
    formatString( ofile, (char *)str, taglen );
    str=(unsigned char *) RelinquishMagickMemory(str);

    tagsfound++;

    c=ReadBlobByte(ifile);
  }
  return((int) tagsfound);
}

Project: ImageMagick6
File: meta.c

static ssize_t parse8BIMW(Image *ifile, Image *ofile)
{
  char
    brkused,
    quoted,
    *line,
    *token,
    *newstr,
    *name;

  int
    state,
    next;

  unsigned char
    dataset;

  unsigned int
    recnum;

  int
    inputlen = MaxTextExtent;

  ssize_t
    savedolen = 0L,
    outputlen = 0L;

  MagickOffsetType
    savedpos,
    currentpos;

  TokenInfo
    *token_info;

  dataset = 0;
  recnum = 0;
  line=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*line));
  if (line == (char *) NULL)
    return(-1);
  newstr = name = token = (char *) NULL;
  savedpos = 0;
  token_info=AcquireTokenInfo();
  while (super_fgets_w(&line,&inputlen,ifile) != NULL)
  {
    state=0;
    next=0;

    token=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*token));
    if (token == (char *) NULL)
      break;
    newstr=(char *) AcquireQuantumMemory((size_t) inputlen,sizeof(*newstr));
    if (newstr == (char *) NULL)
      break;
    while (Tokenizer(token_info,0,token,(size_t) inputlen,line,"","=","\"",0,
      &brkused,&next,&quoted)==0)
    {
      if (state == 0)
        {
          int
            state,
            next;

          char
            brkused,
            quoted;

          state=0;
          next=0;
          while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","#",
            "",0,&brkused,&next,&quoted)==0)
          {
            switch (state)
            {
              case 0:
                if (strcmp(newstr,"8BIM")==0)
                  dataset = 255;
                else
                  dataset = (unsigned char) StringToLong(newstr);
                break;
              case 1:
                recnum=(unsigned int) StringToUnsignedLong(newstr);
                break;
              case 2:
                name=(char *) AcquireQuantumMemory(strlen(newstr)+MaxTextExtent,
                  sizeof(*name));
                if (name)
                  (void) CopyMagickString(name,newstr,strlen(newstr)+MaxTextExtent);
                break;
            }
            state++;
          }
        }
      else
        if (state == 1)
          {
            int
              next;

            ssize_t
              len;

            char
              brkused,
              quoted;

            next=0;
            len = (ssize_t) strlen(token);
            while (Tokenizer(token_info,0,newstr,(size_t) inputlen,token,"","&",
              "",0,&brkused,&next,&quoted)==0)
            {
              if (brkused && next > 0)
                {
                  size_t
                    codes_length;

                  char
                    *s = &token[next-1];

                  codes_length=convertHTMLcodes(s, strlen(s));
                  if ((ssize_t) codes_length > len)
                    len=0;
                  else
                    len-=codes_length;
                }
            }

            if (dataset == 255)
              {
                unsigned char
                  nlen = 0;

                int
                  i;

                if (savedolen > 0)
                  {
                    MagickOffsetType
                      offset;

                    ssize_t diff = outputlen - savedolen;
                    currentpos = TellBlob(ofile);
                    if (currentpos < 0)
                      return(-1);
                    offset=SeekBlob(ofile,savedpos,SEEK_SET);
                    if (offset < 0)
                      return(-1);
                    (void) WriteBlobMSBLong(ofile,(unsigned int) diff);
                    offset=SeekBlob(ofile,currentpos,SEEK_SET);
                    if (offset < 0)
                      return(-1);
                    savedolen = 0L;
                  }
                if (outputlen & 1)
                  {
                    (void) WriteBlobByte(ofile,0x00);
                    outputlen++;
                  }
                (void) WriteBlobString(ofile,"8BIM");
                (void) WriteBlobMSBShort(ofile,(unsigned short) recnum);
                outputlen += 6;
                if (name)
                  nlen = (unsigned char) strlen(name);
                (void) WriteBlobByte(ofile,(unsigned char) nlen);
                outputlen++;
                for (i=0; i<nlen; i++)
                  (void) WriteBlobByte(ofile,(unsigned char) name[i]);
                outputlen += nlen;
                if ((nlen & 0x01) == 0)
                  {
                    (void) WriteBlobByte(ofile,0x00);
                    outputlen++;
                  }
                if (recnum != IPTC_ID)
                  {
                    (void) WriteBlobMSBLong(ofile,(unsigned int) len);
                    outputlen += 4;

                    next=0;
                    outputlen += len;
                    while (len--)
                      (void) WriteBlobByte(ofile,(unsigned char) token[next++]);

                    if (outputlen & 1)
                      {
                        (void) WriteBlobByte(ofile,0x00);
                        outputlen++;
                      }
                  }
                else
                  {
                    /* patch in a fake length for now and fix it later */
                    savedpos = TellBlob(ofile);
                    if (savedpos < 0)
                      return(-1);
                    (void) WriteBlobMSBLong(ofile,0xFFFFFFFFU);
                    outputlen += 4;
                    savedolen = outputlen;
                  }
              }
            else
              {
                if (len <= 0x7FFF)
                  {
                    (void) WriteBlobByte(ofile,0x1c);
                    (void) WriteBlobByte(ofile,dataset);
                    (void) WriteBlobByte(ofile,(unsigned char) (recnum & 0xff));
                    (void) WriteBlobMSBShort(ofile,(unsigned short) len);
                    outputlen += 5;
                    next=0;
                    outputlen += len;
                    while (len--)
                      (void) WriteBlobByte(ofile,(unsigned char) token[next++]);
                  }
              }
          }
      state++;
    }
    if (token != (char *) NULL)
      token=DestroyString(token);
    if (newstr != (char *) NULL)
      newstr=DestroyString(newstr);
    if (name != (char *) NULL)
      name=DestroyString(name);
  }
  token_info=DestroyTokenInfo(token_info);
  if (token != (char *) NULL)
    token=DestroyString(token);
  if (newstr != (char *) NULL)
    newstr=DestroyString(newstr);
  if (name != (char *) NULL)
    name=DestroyString(name);
  line=DestroyString(line);
  if (savedolen > 0)
    {
      MagickOffsetType
        offset;

      ssize_t diff = outputlen - savedolen;

      currentpos = TellBlob(ofile);
      if (currentpos < 0)
        return(-1);
      offset=SeekBlob(ofile,savedpos,SEEK_SET);
      if (offset < 0)
        return(-1);
      (void) WriteBlobMSBLong(ofile,(unsigned int) diff);
      offset=SeekBlob(ofile,currentpos,SEEK_SET);
      if (offset < 0)
        return(-1);
      savedolen = 0L;
    }
  return outputlen;
}

Project: ImageMagick6
File: meta.c

static void formatString(Image *ofile, const char *s, int len)
{
  char
    temp[MaxTextExtent];

  (void) WriteBlobByte(ofile,'"');
  for (; len > 0; len--, s++) {
    int c = (*s) & 255;
    switch (c) {
    case '&':
      (void) WriteBlobString(ofile,"&amp;");
      break;
#ifdef HANDLE_GT_LT
    case '<':
      (void) WriteBlobString(ofile,"&lt;");
      break;
    case '>':
      (void) WriteBlobString(ofile,"&gt;");
      break;
#endif
    case '"':
      (void) WriteBlobString(ofile,"&quot;");
      break;
    default:
      if (isprint(c))
        (void) WriteBlobByte(ofile,(unsigned char) *s);
      else
        {
          (void) FormatLocaleString(temp,MaxTextExtent,"&#%d;", c & 255);
          (void) WriteBlobString(ofile,temp);
        }
      break;
    }
  }
#if defined(MAGICKCORE_WINDOWS_SUPPORT)
  (void) WriteBlobString(ofile,"\"\r\n");
#else
#if defined(macintosh)
  (void) WriteBlobString(ofile,"\"\r");
#else
  (void) WriteBlobString(ofile,"\"\n");
#endif
#endif
}

Project: ImageMagick6
File: meta.c

static MagickBooleanType WriteMETAImage(const ImageInfo *image_info,
  Image *image)
{
  const StringInfo
    *profile;

  MagickBooleanType
    status;

  size_t
    length;

  /*
    Open image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickCoreSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  length=0;
  if (LocaleCompare(image_info->magick,"8BIM") == 0)
    {
      /*
        Write 8BIM image.
      */
      profile=GetImageProfile(image,"8bim");
      if (profile == (StringInfo *) NULL)
        ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
      if (status == MagickFalse)
        return(status);
      (void) WriteBlob(image,GetStringInfoLength(profile),
        GetStringInfoDatum(profile));
      (void) CloseBlob(image);
      return(MagickTrue);
    }
  if (LocaleCompare(image_info->magick,"iptc") == 0)
    {
      size_t
        length;

      unsigned char
        *info;

      profile=GetImageProfile(image,"iptc");
      if (profile == (StringInfo *) NULL)
        profile=GetImageProfile(image,"8bim");
      if (profile == (StringInfo *) NULL)
        ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
      info=GetStringInfoDatum(profile);
      length=GetStringInfoLength(profile);
      length=GetIPTCStream(&info,length);
      if (length == 0)
        ThrowWriterException(CoderError,"NoIPTCProfileAvailable");
      (void) WriteBlob(image,length,info);
      (void) CloseBlob(image);
      return(MagickTrue);
    }
  if (LocaleCompare(image_info->magick,"8BIMTEXT") == 0)
    {
      Image
        *buff;

      profile=GetImageProfile(image,"8bim");
      if (profile == (StringInfo *) NULL)
        ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
      if (status == MagickFalse)
        return(status);
      buff=AcquireImage((ImageInfo *) NULL);
      if (buff == (Image *) NULL)
        ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
      AttachBlob(buff->blob,GetStringInfoDatum(profile),
        GetStringInfoLength(profile));
      format8BIM(buff,image);
      (void) DetachBlob(buff->blob);
      buff=DestroyImage(buff);
      (void) CloseBlob(image);
      return(MagickTrue);
    }
  if (LocaleCompare(image_info->magick,"8BIMWTEXT") == 0)
    return(MagickFalse);
  if (LocaleCompare(image_info->magick,"IPTCTEXT") == 0)
    {
      Image
        *buff;

      unsigned char
        *info;

      profile=GetImageProfile(image,"8bim");
      if (profile == (StringInfo *) NULL)
        ThrowWriterException(CoderError,"No8BIMDataIsAvailable");
      info=GetStringInfoDatum(profile);
      length=GetStringInfoLength(profile);
      length=GetIPTCStream(&info,length);
      if (length == 0)
        ThrowWriterException(CoderError,"NoIPTCProfileAvailable");
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
      if (status == MagickFalse)
        return(status);
      buff=AcquireImage((ImageInfo *) NULL);
      if (buff == (Image *) NULL)
        ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
      AttachBlob(buff->blob,info,length);
      formatIPTC(buff,image);
      (void) DetachBlob(buff->blob);
      buff=DestroyImage(buff);
      (void) CloseBlob(image);
      return(MagickTrue);
    }
  if (LocaleCompare(image_info->magick,"IPTCWTEXT") == 0)
    return(MagickFalse);
  if ((LocaleCompare(image_info->magick,"APP1") == 0) ||
      (LocaleCompare(image_info->magick,"EXIF") == 0) ||
      (LocaleCompare(image_info->magick,"XMP") == 0))
    {
      /*
        (void) Write APP1 image.
      */
      profile=GetImageProfile(image,image_info->magick);
      if (profile == (StringInfo *) NULL)
        ThrowWriterException(CoderError,"NoAPP1DataIsAvailable");
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
      if (status == MagickFalse)
        return(status);
      (void) WriteBlob(image,GetStringInfoLength(profile),
        GetStringInfoDatum(profile));
      (void) CloseBlob(image);
      return(MagickTrue);
    }
  if ((LocaleCompare(image_info->magick,"ICC") == 0) ||
      (LocaleCompare(image_info->magick,"ICM") == 0))
    {
      /*
        Write ICM image.
      */
      profile=GetImageProfile(image,"icc");
      if (profile == (StringInfo *) NULL)
        ThrowWriterException(CoderError,"NoColorProfileIsAvailable");
      status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
      if (status == MagickFalse)
        return(status);
      (void) WriteBlob(image,GetStringInfoLength(profile),
        GetStringInfoDatum(profile));
      (void) CloseBlob(image);
      return(MagickTrue);
    }
  return(MagickFalse);
}

Project: ImageMagick6
File: meta.c

static Image *ReadMETAImage(const ImageInfo *image_info,
  ExceptionInfo *exception)
{
  Image
    *buff,
    *image;

  MagickBooleanType
    status;

  StringInfo
    *profile;

  size_t
    length;

  void
    *blob;

  /*
    Open file containing binary metadata
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickCoreSignature);
  if (image_info->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
      image_info->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickCoreSignature);
  image=AcquireImage(image_info);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == MagickFalse)
    {
      image=DestroyImageList(image);
      return((Image *) NULL);
    }
  image->columns=1;
  image->rows=1;
  if (SetImageBackgroundColor(image) == MagickFalse)
    {
      InheritException(exception,&image->exception);
      image=DestroyImageList(image);
      return((Image *) NULL);
    }
  length=1;
  if (LocaleNCompare(image_info->magick,"8BIM",4) == 0)
    {
      /*
        Read 8BIM binary metadata.
      */
      buff=AcquireImage((ImageInfo *) NULL);
      if (buff == (Image *) NULL)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
      blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
      if (blob == (unsigned char *) NULL)
        {
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      (void) memset(blob,0,length);
      AttachBlob(buff->blob,blob,length);
      if (LocaleCompare(image_info->magick,"8BIMTEXT") == 0)
        {
          length=(size_t) parse8BIM(image, buff);
          if (length == 0)
            {
              blob=DetachBlob(buff->blob);
              blob=(unsigned char *) RelinquishMagickMemory(blob);
              buff=DestroyImage(buff);
              ThrowReaderException(CorruptImageError,"CorruptImage");
            }
          if (length & 1)
            (void) WriteBlobByte(buff,0x0);
        }
      else if (LocaleCompare(image_info->magick,"8BIMWTEXT") == 0)
        {
          length=(size_t) parse8BIMW(image, buff);
          if (length == 0)
            {
              blob=DetachBlob(buff->blob);
              blob=(unsigned char *) RelinquishMagickMemory(blob);
              buff=DestroyImage(buff);
              ThrowReaderException(CorruptImageError,"CorruptImage");
            }
          if (length & 1)
            (void) WriteBlobByte(buff,0x0);
        }
      else
        CopyBlob(image,buff);
      profile=BlobToStringInfo(GetBlobStreamData(buff),(size_t)
        GetBlobSize(buff));
      if (profile == (StringInfo *) NULL)
        {
          blob=DetachBlob(buff->blob);
          blob=(unsigned char *) RelinquishMagickMemory(blob);
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      status=SetImageProfile(image,"8bim",profile);
      profile=DestroyStringInfo(profile);
      blob=DetachBlob(buff->blob);
      blob=(unsigned char *) RelinquishMagickMemory(blob);
      buff=DestroyImage(buff);
      if (status == MagickFalse)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
    }
  if (LocaleNCompare(image_info->magick,"APP1",4) == 0)
    {
      char
        name[MaxTextExtent];

      (void) FormatLocaleString(name,MaxTextExtent,"APP%d",1);
      buff=AcquireImage((ImageInfo *) NULL);
      if (buff == (Image *) NULL)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
      blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
      if (blob == (unsigned char *) NULL)
        {
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      AttachBlob(buff->blob,blob,length);
      if (LocaleCompare(image_info->magick,"APP1JPEG") == 0)
        {
          Image
            *iptc;

          int
            result;

          if (image_info->profile == (void *) NULL)
            {
              blob=DetachBlob(buff->blob);
              blob=(unsigned char *) RelinquishMagickMemory(blob);
              buff=DestroyImage(buff);
              ThrowReaderException(CoderError,"NoIPTCProfileAvailable");
            }
          profile=CloneStringInfo((StringInfo *) image_info->profile);
          iptc=AcquireImage((ImageInfo *) NULL);
          if (iptc == (Image *) NULL)
            {
              blob=DetachBlob(buff->blob);
              blob=(unsigned char *) RelinquishMagickMemory(blob);
              buff=DestroyImage(buff);
              ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
            }
          AttachBlob(iptc->blob,GetStringInfoDatum(profile),
            GetStringInfoLength(profile));
          result=jpeg_embed(image,buff,iptc);
          blob=DetachBlob(iptc->blob);
          blob=(unsigned char *) RelinquishMagickMemory(blob);
          iptc=DestroyImage(iptc);
          if (result == 0)
            ThrowReaderException(CoderError,"JPEGEmbeddingFailed");
        }
      else
        CopyBlob(image,buff);
      profile=BlobToStringInfo(GetBlobStreamData(buff),(size_t)
        GetBlobSize(buff));
      if (profile == (StringInfo *) NULL)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
      status=SetImageProfile(image,name,profile);
      profile=DestroyStringInfo(profile);
      blob=DetachBlob(buff->blob);
      blob=(unsigned char *) RelinquishMagickMemory(blob);
      buff=DestroyImage(buff);
      if (status == MagickFalse)
        {
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
    }
  if ((LocaleCompare(image_info->magick,"ICC") == 0) ||
      (LocaleCompare(image_info->magick,"ICM") == 0))
    {
      buff=AcquireImage((ImageInfo *) NULL);
      if (buff == (Image *) NULL)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
      blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
      if (blob == (unsigned char *) NULL)
        {
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      AttachBlob(buff->blob,blob,length);
      CopyBlob(image,buff);
      profile=BlobToStringInfo(GetBlobStreamData(buff),(size_t)
        GetBlobSize(buff));
      if (profile == (StringInfo *) NULL)
        {
          blob=DetachBlob(buff->blob);
          blob=(unsigned char *) RelinquishMagickMemory(blob);
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      (void) SetImageProfile(image,"icc",profile);
      profile=DestroyStringInfo(profile);
      blob=DetachBlob(buff->blob);
      blob=(unsigned char *) RelinquishMagickMemory(blob);
      buff=DestroyImage(buff);
    }
  if (LocaleCompare(image_info->magick,"IPTC") == 0)
    {
      buff=AcquireImage((ImageInfo *) NULL);
      if (buff == (Image *) NULL)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
      blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
      if (blob == (unsigned char *) NULL)
        {
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      AttachBlob(buff->blob,blob,length);
      CopyBlob(image,buff);
      profile=BlobToStringInfo(GetBlobStreamData(buff),(size_t)
        GetBlobSize(buff));
      if (profile == (StringInfo *) NULL)
        {
          blob=DetachBlob(buff->blob);
          blob=(unsigned char *) RelinquishMagickMemory(blob);
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      (void) SetImageProfile(image,"iptc",profile);
      profile=DestroyStringInfo(profile);
      blob=DetachBlob(buff->blob);
      blob=(unsigned char *) RelinquishMagickMemory(blob);
      buff=DestroyImage(buff);
    }
  if (LocaleCompare(image_info->magick,"XMP") == 0)
    {
      buff=AcquireImage((ImageInfo *) NULL);
      if (buff == (Image *) NULL)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
      blob=(unsigned char *) AcquireQuantumMemory(length,sizeof(unsigned char));
      if (blob == (unsigned char *) NULL)
        {
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      AttachBlob(buff->blob,blob,length);
      CopyBlob(image,buff);
      profile=BlobToStringInfo(GetBlobStreamData(buff),(size_t)
        GetBlobSize(buff));
      if (profile == (StringInfo *) NULL)
        {
          blob=DetachBlob(buff->blob);
          blob=(unsigned char *) RelinquishMagickMemory(blob);
          buff=DestroyImage(buff);
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        }
      (void) SetImageProfile(image,"xmp",profile);
      profile=DestroyStringInfo(profile);
      blob=DetachBlob(buff->blob);
      blob=(unsigned char *) RelinquishMagickMemory(blob);
      buff=DestroyImage(buff);
    }
  (void) CloseBlob(image);
  return(GetFirstImageInList(image));
}