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xls.c
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xls.c
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* This file is part of libxls -- A multiplatform, C/C++ library
* for parsing Excel(TM) files.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY David Hoerl ''AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL David Hoerl OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2004 Komarov Valery
* Copyright 2006 Christophe Leitienne
* Copyright 2013 Bob Colbert
* Copyright 2008-2013 David Hoerl
*
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <memory.h>
#include <math.h>
#include <sys/types.h>
#include <string.h>
#include <wchar.h>
#include "libxls/endian.h"
#include "libxls/xls.h"
#ifndef min
#define min(a,b) ((a) < (b) ? (a) : (b))
#endif
//#define DEBUG_DRAWINGS
int xls_debug = 0;
static double NumFromRk(DWORD_UA drk);
static xls_formula_handler formula_handler;
extern xls_error_t xls_addSST(xlsWorkBook* pWB, SST* sst, DWORD size);
extern xls_error_t xls_appendSST(xlsWorkBook* pWB, BYTE* buf, DWORD size);
extern xls_error_t xls_addFormat(xlsWorkBook* pWB, FORMAT* format, DWORD size);
extern char* xls_addSheet(xlsWorkBook* pWB, BOUNDSHEET* bs, DWORD size);
extern xls_error_t xls_addRow(xlsWorkSheet* pWS,ROW* row);
extern xls_error_t xls_makeTable(xlsWorkSheet* pWS);
extern struct st_cell_data *xls_addCell(xlsWorkSheet* pWS, BOF* bof, BYTE* buf);
extern char *xls_addFont(xlsWorkBook* pWB, FONT* font, DWORD size);
extern xls_error_t xls_addXF8(xlsWorkBook* pWB, XF8* xf);
extern xls_error_t xls_addXF5(xlsWorkBook* pWB, XF5* xf);
extern xls_error_t xls_addColinfo(xlsWorkSheet* pWS, COLINFO* colinfo);
extern xls_error_t xls_mergedCells(xlsWorkSheet* pWS, BOF* bof, BYTE* buf);
extern xls_error_t xls_parseWorkBook(xlsWorkBook* pWB);
extern xls_error_t xls_preparseWorkSheet(xlsWorkSheet* pWS);
extern xls_error_t xls_formatColumn(xlsWorkSheet* pWS);
extern xls_error_t xls_parseWorkSheet(xlsWorkSheet* pWS);
extern void xls_dumpSummary(char *buf, int isSummary, xlsSummaryInfo *pSI);
#if defined(_AIX) || defined(__sun)
#pragma pack(1)
#else
#pragma pack(push, 1)
#endif
typedef struct {
uint32_t format[4];
uint32_t offset;
} sectionList;
typedef struct {
uint16_t sig;
uint16_t _empty;
uint32_t os;
uint32_t format[4];
uint32_t count;
sectionList secList[];
} header;
typedef struct {
uint32_t propertyID;
uint32_t sectionOffset;
} propertyList;
typedef struct {
uint32_t length;
uint32_t numProperties;
propertyList properties[];
} sectionHeader;
typedef struct {
uint32_t propertyID;
uint32_t data[];
} property;
#pragma pack(pop)
int xls(int debug)
{
xls_debug = debug;
return 1;
}
xls_error_t xls_addSST(xlsWorkBook* pWB,SST* sst,DWORD size)
{
verbose("xls_addSST");
pWB->sst.continued=0;
pWB->sst.lastln=0;
pWB->sst.lastid=0;
pWB->sst.lastrt=0;
pWB->sst.lastsz=0;
if (sst->num > (1<<20))
return LIBXLS_ERROR_MALLOC;
if ((pWB->sst.string = calloc(pWB->sst.count = sst->num,
sizeof(struct str_sst_string))) == NULL)
return LIBXLS_ERROR_MALLOC;
return xls_appendSST(pWB, sst->strings, size - sizeof(SST));
}
xls_error_t xls_appendSST(xlsWorkBook* pWB, BYTE* buf, DWORD size)
{
DWORD ln; // String character count
DWORD ofs; // Current offset in SST buffer
DWORD rt; // Count of rich text formatting runs
DWORD sz; // Size of asian phonetic settings block
BYTE flag; // String flags
char* ret = NULL;
if (xls_debug) {
printf("xls_appendSST %u\n", size);
}
sz = rt = ln = 0; // kch
ofs=0;
while(ofs<size)
{
int ln_toread;
// Restore state when we're in a continue record
// or read string length
if (pWB->sst.continued) {
ln=pWB->sst.lastln;
rt=pWB->sst.lastrt;
sz=pWB->sst.lastsz;
} else {
if (ofs + 2 > size) {
return LIBXLS_ERROR_PARSE;
}
ln=xlsShortVal(*(WORD_UA *)(buf+ofs));
rt = 0;
sz = 0;
ofs+=2;
}
if (xls_debug) {
printf("ln=%u\n", ln);
}
// Read flags
if ( !pWB->sst.continued || (pWB->sst.continued && ln != 0) ) {
if (ofs + sizeof(BYTE) > size) {
return LIBXLS_ERROR_PARSE;
}
flag=*(BYTE *)(buf+ofs);
ofs++;
// Count of rich text formatting runs
if (flag & 0x8) {
if (ofs + sizeof(WORD_UA) > size) {
return LIBXLS_ERROR_PARSE;
}
rt=xlsShortVal(*(WORD_UA *)(buf+ofs));
ofs+=2;
}
// Size of asian phonetic settings block
if (flag & 0x4) {
if (ofs + sizeof(DWORD_UA) > size) {
return LIBXLS_ERROR_PARSE;
}
sz=xlsIntVal(*(DWORD_UA *)(buf+ofs));
ofs+=4;
if (xls_debug) {
printf("sz=%u\n", sz);
}
}
} else {
flag = 0;
}
// Read characters (compressed or not)
ln_toread = 0;
if (ln > 0) {
if (flag & 0x1) {
size_t new_len = 0;
ln_toread = min((size-ofs)/2, ln);
ret=unicode_decode((char *)buf+ofs,ln_toread*2,&new_len,pWB->charset);
if (ret == NULL)
{
ret = strdup("*failed to decode utf16*");
new_len = strlen(ret);
}
ret = realloc(ret,new_len+1);
ret[new_len]=0;
ln -= ln_toread;
ofs+=ln_toread*2;
if (xls_debug) {
printf("String16SST: %s(%zd)\n",ret,new_len);
}
} else {
ln_toread = min((size-ofs), ln);
ret = utf8_decode((char *)buf+ofs, ln_toread, pWB->charset);
ln -= ln_toread;
ofs += ln_toread;
if (xls_debug) {
printf("String8SST: %s(%u) \n",ret,ln);
}
}
} else {
ret = strdup("");
}
if (ln_toread > 0 || !pWB->sst.continued) {
// Concat string if it's a continue, or add string in table
if (!pWB->sst.continued) {
if (pWB->sst.lastid >= pWB->sst.count) {
free(ret);
return LIBXLS_ERROR_PARSE;
}
pWB->sst.lastid++;
pWB->sst.string[pWB->sst.lastid-1].str=ret;
} else {
char *tmp = pWB->sst.string[pWB->sst.lastid-1].str;
if (tmp == NULL) {
free(ret);
return LIBXLS_ERROR_PARSE;
}
tmp = realloc(tmp, strlen(tmp)+strlen(ret)+1);
if (tmp == NULL) {
free(ret);
return LIBXLS_ERROR_MALLOC;
}
pWB->sst.string[pWB->sst.lastid-1].str=tmp;
memcpy(tmp+strlen(tmp), ret, strlen(ret)+1);
free(ret);
}
if (xls_debug) {
printf("String %4u: %s<end>\n", pWB->sst.lastid-1, pWB->sst.string[pWB->sst.lastid-1].str);
}
}
// Jump list of rich text formatting runs
if (ofs < size && rt > 0) {
int rt_toread = min((size-ofs)/4, rt);
rt -= rt_toread;
ofs += rt_toread*4;
}
// Jump asian phonetic settings block
if (ofs < size && sz > 0) {
int sz_toread = min((size-ofs), sz);
sz -= sz_toread;
ofs += sz_toread;
}
pWB->sst.continued=0;
}
// Save current character count and count of rich text formatting runs and size of asian phonetic settings block
if (ln > 0 || rt > 0 || sz > 0) {
pWB->sst.continued = 1;
pWB->sst.lastln = ln;
pWB->sst.lastrt = rt;
pWB->sst.lastsz = sz;
if (xls_debug) {
printf("continued: ln=%u, rt=%u, sz=%u\n", ln, rt, sz);
}
}
return LIBXLS_OK;
}
static double NumFromRk(DWORD_UA drk)
{
double ret;
// What kind of value is this ?
if (drk & 0x02) {
// Integer value
int tmp = (int)drk >> 2; // cast to keep it negative in < 0
ret = (double)tmp;
} else {
// Floating point value;
unsigned64_t tmp = drk & 0xfffffffc;
tmp <<= 32;
memcpy(&ret, &tmp, sizeof(unsigned64_t));
}
// Is value multiplied by 100 ?
if (drk & 0x01) {
ret /= 100.0;
}
return ret;
}
char * xls_addSheet(xlsWorkBook* pWB, BOUNDSHEET *bs, DWORD size)
{
char * name;
DWORD filepos;
BYTE visible, type;
filepos = bs->filepos;
visible = bs->visible;
type = bs->type;
// printf("charset=%s uni=%d\n", pWB->charset, unicode);
// printf("bs name %.*s\n", bs->name[0], bs->name+1);
name = get_string(bs->name, size - sizeof(BOUNDSHEET), 0, pWB->is5ver, pWB->charset);
// printf("name=%s\n", name);
if(xls_debug) {
printf ("xls_addSheet[0x%x]\n", type);
switch (type & 0x0f)
{
case 0x00:
/* worksheet or dialog sheet */
printf ("85: Worksheet or dialog sheet\n");
break;
case 0x01:
/* Microsoft Excel 4.0 macro sheet */
printf ("85: Microsoft Excel 4.0 macro sheet\n");
break;
case 0x02:
/* Chart */
printf ("85: Chart sheet\n");
break;
case 0x06:
/* Visual Basic module */
printf ("85: Visual Basic sheet\n");
break;
default:
printf ("???\n");
break;
}
printf("visible: %x\n", visible);
printf(" Pos: %Xh\n",filepos);
printf(" type: %.4Xh\n",type);
printf(" name: %s\n", name);
}
pWB->sheets.sheet = realloc(pWB->sheets.sheet,(pWB->sheets.count+1)*sizeof (struct st_sheet_data));
if (pWB->sheets.sheet == NULL)
return NULL;
pWB->sheets.sheet[pWB->sheets.count].name=name;
pWB->sheets.sheet[pWB->sheets.count].filepos=filepos;
pWB->sheets.sheet[pWB->sheets.count].visibility=visible;
pWB->sheets.sheet[pWB->sheets.count].type=type;
pWB->sheets.count++;
return name;
}
xls_error_t xls_addRow(xlsWorkSheet* pWS,ROW* row)
{
struct st_row_data* tmp;
//verbose ("xls_addRow");
if (row->index > pWS->rows.lastrow)
return LIBXLS_ERROR_PARSE;
tmp=&pWS->rows.row[row->index];
tmp->height=row->height;
tmp->fcell=row->fcell;
tmp->lcell=row->lcell;
tmp->flags=row->flags;
tmp->xf=row->xf&0xfff;
tmp->xfflags=(row->xf >> 8)&0xf0;
if(xls_debug) xls_showROW(tmp);
return LIBXLS_OK;
}
xls_error_t xls_makeTable(xlsWorkSheet* pWS)
{
DWORD i,t;
struct st_row_data* tmp;
verbose ("xls_makeTable");
if ((pWS->rows.row = calloc((pWS->rows.lastrow+1),sizeof(struct st_row_data))) == NULL)
return LIBXLS_ERROR_MALLOC;
// printf("ALLOC: rows=%d cols=%d\n", pWS->rows.lastrow, pWS->rows.lastcol);
for (t=0;t<=pWS->rows.lastrow;t++)
{
tmp=&pWS->rows.row[t];
tmp->index=t;
tmp->fcell=0;
tmp->lcell=pWS->rows.lastcol;
tmp->cells.count = pWS->rows.lastcol+1;
if ((tmp->cells.cell = calloc(tmp->cells.count, sizeof(struct st_cell_data))) == NULL)
return LIBXLS_ERROR_MALLOC;
for (i=0;i<=pWS->rows.lastcol;i++)
{
tmp->cells.cell[i].col = i;
tmp->cells.cell[i].row = t;
tmp->cells.cell[i].width = pWS->defcolwidth;
tmp->cells.cell[i].id = XLS_RECORD_BLANK;
}
}
return LIBXLS_OK;
}
int xls_isCellTooSmall(xlsWorkBook* pWB, BOF* bof, BYTE* buf) {
if (bof->size < sizeof(COL))
return 1;
if (bof->id == XLS_RECORD_FORMULA || bof->id == XLS_RECORD_FORMULA_ALT)
return (bof->size < sizeof(FORMULA));
if (bof->id == XLS_RECORD_MULRK)
return (bof->size < sizeof(MULRK));
if (bof->id == XLS_RECORD_MULBLANK)
return (bof->size < sizeof(MULBLANK));
if (bof->id == XLS_RECORD_LABELSST) {
return (bof->size < sizeof(LABEL) + (pWB->is5ver ? 2 : 4));
}
if (bof->id == XLS_RECORD_LABEL) {
size_t label_len = xlsShortVal(*(WORD *)((LABEL*)buf)->value);
if (pWB->is5ver) {
return (bof->size < sizeof(LABEL) + 2 + label_len);
}
if ((((LABEL*)buf)->value[2] & 0x01)) {
return (bof->size < sizeof(LABEL) + 3 + label_len);
}
return (bof->size < sizeof(LABEL) + 3 + 2 * label_len);
}
if (bof->id == XLS_RECORD_RK)
return (bof->size < sizeof(RK));
if (bof->id == XLS_RECORD_NUMBER)
return (bof->size < sizeof(BR_NUMBER));
if (bof->id == XLS_RECORD_BOOLERR)
return (bof->size < sizeof(BOOLERR));
return 0;
}
struct st_cell_data *xls_addCell(xlsWorkSheet* pWS,BOF* bof,BYTE* buf)
{
struct st_cell_data* cell;
struct st_row_data* row;
WORD_UA col;
int i;
verbose ("xls_addCell");
if (xls_isCellTooSmall(pWS->workbook, bof, buf))
return NULL;
// printf("ROW: %u COL: %u\n", xlsShortVal(((COL*)buf)->row), xlsShortVal(((COL*)buf)->col));
row=&pWS->rows.row[xlsShortVal(((COL*)buf)->row)];
col = xlsShortVal(((COL*)buf)->col);
if (col >= row->cells.count) {
if (xls_debug) fprintf2(stderr, "Error: Column index out of bounds\n");
return NULL;
}
cell = &row->cells.cell[col];
cell->id=bof->id;
cell->xf=xlsShortVal(((COL*)buf)->xf);
switch (bof->id)
{
case XLS_RECORD_FORMULA:
case XLS_RECORD_FORMULA_ALT:
xlsConvertFormula((FORMULA *)buf);
cell->id=XLS_RECORD_FORMULA;
if (((FORMULA*)buf)->res!=0xffff) {
// if a double, then set double and clear l
cell->l=0;
memcpy(&cell->d, &((FORMULA*)buf)->resid, sizeof(double)); // Required for ARM
cell->str=xls_getfcell(pWS->workbook,cell, NULL);
} else {
double d = ((FORMULA*)buf)->resdata[1];
cell->l = 0xFFFF;
switch(((FORMULA*)buf)->resid) {
case 0: // String
break; // cell is half complete, get the STRING next record
case 1: // Boolean
memcpy(&cell->d, &d, sizeof(double)); // Required for ARM
sprintf((char *)(cell->str = malloc(sizeof("bool"))), "bool");
break;
case 2: // error
memcpy(&cell->d, &d, sizeof(double)); // Required for ARM
sprintf((char *)(cell->str = malloc(sizeof("error"))), "error");
break;
case 3: // empty string
cell->str = calloc(1,1);
break;
}
}
if(formula_handler) formula_handler(bof->id, bof->size, buf);
break;
case XLS_RECORD_MULRK:
for (i = 0; i < (bof->size - 6)/6; i++) // 6 == 2 row + 2 col + 2 trailing index
{
WORD index = col + i;
if(index >= row->cells.count) {
if (xls_debug) fprintf2(stderr, "Error: MULTI-RK index out of bounds\n");
return NULL;
}
cell=&row->cells.cell[index];
cell->id=XLS_RECORD_RK;
cell->xf=xlsShortVal(((MULRK*)buf)->rk[i].xf);
cell->d=NumFromRk(xlsIntVal(((MULRK*)buf)->rk[i].value));
cell->str=xls_getfcell(pWS->workbook,cell, NULL);
}
break;
case XLS_RECORD_MULBLANK:
for (i = 0; i < (bof->size - 6)/2; i++) // 6 == 2 row + 2 col + 2 trailing index
{
WORD index = col + i;
if(index >= row->cells.count) {
if (xls_debug) fprintf2(stderr, "Error: MULTI-BLANK index out of bounds\n");
return NULL;
}
cell=&row->cells.cell[index];
cell->id=XLS_RECORD_BLANK;
cell->xf=xlsShortVal(((MULBLANK*)buf)->xf[i]);
cell->str=xls_getfcell(pWS->workbook,cell, NULL);
}
break;
case XLS_RECORD_LABELSST:
case XLS_RECORD_LABEL:
cell->str = xls_getfcell(pWS->workbook, cell, ((LABEL*)buf)->value);
if (cell->str) {
sscanf((char *)cell->str, "%d", &cell->l);
sscanf((char *)cell->str, "%lf", &cell->d);
}
break;
case XLS_RECORD_RK:
cell->d=NumFromRk(xlsIntVal(((RK*)buf)->value));
cell->str=xls_getfcell(pWS->workbook,cell, NULL);
break;
case XLS_RECORD_BLANK:
break;
case XLS_RECORD_NUMBER:
xlsConvertDouble((BYTE *)&((BR_NUMBER*)buf)->value);
memcpy(&cell->d, &((BR_NUMBER*)buf)->value, sizeof(double)); // Required for ARM
cell->str=xls_getfcell(pWS->workbook,cell, NULL);
break;
case XLS_RECORD_BOOLERR:
cell->d = ((BOOLERR *)buf)->value;
if (((BOOLERR *)buf)->iserror) {
sprintf((char *)(cell->str = malloc(sizeof("error"))), "error");
} else {
sprintf((char *)(cell->str = malloc(sizeof("bool"))), "bool");
}
break;
default:
cell->str=xls_getfcell(pWS->workbook,cell, NULL);
break;
}
if (xls_debug) xls_showCell(cell);
return cell;
}
char *xls_addFont(xlsWorkBook* pWB, FONT* font, DWORD size)
{
struct st_font_data* tmp;
verbose("xls_addFont");
pWB->fonts.font = realloc(pWB->fonts.font,(pWB->fonts.count+1)*sizeof(struct st_font_data));
if (pWB->fonts.font == NULL)
return NULL;
tmp=&pWB->fonts.font[pWB->fonts.count];
tmp->name = get_string(font->name, size - sizeof(FONT), 0, pWB->is5ver, pWB->charset);
tmp->height=font->height;
tmp->flag=font->flag;
tmp->color=font->color;
tmp->bold=font->bold;
tmp->escapement=font->escapement;
tmp->underline=font->underline;
tmp->family=font->family;
tmp->charset=font->charset;
// xls_showFont(tmp);
pWB->fonts.count++;
return tmp->name;
}
xls_error_t xls_addFormat(xlsWorkBook* pWB, FORMAT* format, DWORD size)
{
struct st_format_data* tmp;
verbose("xls_addFormat");
pWB->formats.format = realloc(pWB->formats.format, (pWB->formats.count+1)*sizeof(struct st_format_data));
if (pWB->formats.format == NULL)
return LIBXLS_ERROR_MALLOC;
tmp = &pWB->formats.format[pWB->formats.count];
tmp->index = format->index;
tmp->value = get_string(format->value, size - sizeof(FORMAT), (BYTE)!pWB->is5ver, (BYTE)pWB->is5ver, pWB->charset);
if(xls_debug) xls_showFormat(tmp);
pWB->formats.count++;
return LIBXLS_OK;
}
xls_error_t xls_addXF8(xlsWorkBook* pWB,XF8* xf)
{
struct st_xf_data* tmp;
verbose("xls_addXF");
pWB->xfs.xf= realloc(pWB->xfs.xf, (pWB->xfs.count+1)*sizeof(struct st_xf_data));
if (pWB->xfs.xf == NULL)
return LIBXLS_ERROR_MALLOC;
tmp=&pWB->xfs.xf[pWB->xfs.count];
tmp->font=xf->font;
tmp->format=xf->format;
tmp->type=xf->type;
tmp->align=xf->align;
tmp->rotation=xf->rotation;
tmp->ident=xf->ident;
tmp->usedattr=xf->usedattr;
tmp->linestyle=xf->linestyle;
tmp->linecolor=xf->linecolor;
tmp->groundcolor=xf->groundcolor;
// xls_showXF(tmp);
pWB->xfs.count++;
return LIBXLS_OK;
}
xls_error_t xls_addXF5(xlsWorkBook* pWB,XF5* xf)
{
struct st_xf_data* tmp;
verbose("xls_addXF");
pWB->xfs.xf = realloc(pWB->xfs.xf, (pWB->xfs.count+1)*sizeof(struct st_xf_data));
if (pWB->xfs.xf == NULL)
return LIBXLS_ERROR_MALLOC;
tmp=&pWB->xfs.xf[pWB->xfs.count];
tmp->font=xf->font;
tmp->format=xf->format;
tmp->type=xf->type;
tmp->align=(BYTE)xf->align;
/*
tmp->rotation=xf->rotation;
tmp->ident=xf->ident;
tmp->usedattr=xf->usedattr;
tmp->linestyle=xf->linestyle;
tmp->linecolor=xf->linecolor;
tmp->groundcolor=xf->groundcolor;
*/
// xls_showXF(tmp);
pWB->xfs.count++;
return LIBXLS_OK;
}
xls_error_t xls_addColinfo(xlsWorkSheet* pWS,COLINFO* colinfo)
{
struct st_colinfo_data* tmp;
verbose("xls_addColinfo");
pWS->colinfo.col = realloc(pWS->colinfo.col,(pWS->colinfo.count+1)*sizeof(struct st_colinfo_data));
if (pWS->colinfo.col == NULL)
return LIBXLS_ERROR_MALLOC;
tmp=&pWS->colinfo.col[pWS->colinfo.count];
tmp->first=colinfo->first;
tmp->last=colinfo->last;
tmp->width=colinfo->width;
tmp->xf=colinfo->xf;
tmp->flags=colinfo->flags;
if(xls_debug) xls_showColinfo(tmp);
pWS->colinfo.count++;
return LIBXLS_OK;
}
xls_error_t xls_mergedCells(xlsWorkSheet* pWS,BOF* bof,BYTE* buf)
{
if (bof->size < sizeof(WORD_UA))
return LIBXLS_ERROR_PARSE;
int count=xlsShortVal(*((WORD_UA *)buf));
DWORD limit = sizeof(WORD_UA)+count*sizeof(struct MERGEDCELLS);
if(limit > (DWORD)bof->size) {
verbose("Merged Cells Count out of range");
return LIBXLS_ERROR_PARSE;
}
int i,c,r;
struct MERGEDCELLS *span;
verbose("Merged Cells");
for (i=0;i<count;i++)
{
span=(struct MERGEDCELLS*)(buf+(2+i*sizeof(struct MERGEDCELLS)));
xlsConvertMergedcells(span);
// printf("Merged Cells: [%i,%i] [%i,%i] \n",span->colf,span->rowf,span->coll,span->rowl);
// Sanity check:
if(!( span->rowf <= span->rowl &&
span->rowl <= pWS->rows.lastrow &&
span->colf <= span->coll &&
span->coll <= pWS->rows.lastcol
)) {
return LIBXLS_ERROR_PARSE;
}
for (r=span->rowf;r<=span->rowl;r++)
for (c=span->colf;c<=span->coll;c++)
pWS->rows.row[r].cells.cell[c].isHidden=1;
pWS->rows.row[span->rowf].cells.cell[span->colf].colspan=(span->coll-span->colf+1);
pWS->rows.row[span->rowf].cells.cell[span->colf].rowspan=(span->rowl-span->rowf+1);
pWS->rows.row[span->rowf].cells.cell[span->colf].isHidden=0;
}
return LIBXLS_OK;
}
xls_error_t xls_parseWorkBook(xlsWorkBook* pWB)
{
BOF bof1 = { 0 };
BOF bof2 = { 0 };
BYTE* buf = NULL;
BYTE once = 0;
xls_error_t retval = LIBXLS_OK;
verbose ("xls_parseWorkBook");
do {
if(xls_debug > 10) {
printf("READ WORKBOOK filePos=%ld\n", (long)pWB->filepos);
printf(" OLE: start=%d pos=%zd size=%zd fatPos=%zu\n",
pWB->olestr->start, pWB->olestr->pos, pWB->olestr->size, pWB->olestr->fatpos);
}
if (ole2_read(&bof1, 1, 4, pWB->olestr) != 4) {
retval = LIBXLS_ERROR_READ;
goto cleanup;
}
xlsConvertBof(&bof1);
if(xls_debug) xls_showBOF(&bof1);
if (bof1.size) {
if ((buf = realloc(buf, bof1.size)) == NULL) {
if (xls_debug) fprintf3(stderr, "Error: failed to allocate buffer of size %d\n", (int)bof1.size);
retval = LIBXLS_ERROR_MALLOC;
goto cleanup;
}
if (ole2_read(buf, 1, bof1.size, pWB->olestr) != bof1.size) {
if (xls_debug) fprintf2(stderr, "Error: failed to read OLE block\n");
retval = LIBXLS_ERROR_READ;
goto cleanup;
}
}
switch (bof1.id) {
case XLS_RECORD_EOF:
//verbose("EOF");
break;
case XLS_RECORD_BOF: // BIFF5-8
if (bof1.size < 2 * sizeof(WORD)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
pWB->is5ver = (xlsShortVal(*(WORD *)&buf[0]) != 0x600);
pWB->type = xlsShortVal(*(WORD *)&buf[2]);
if(xls_debug) {
printf("version: %s\n", pWB->is5ver ? "BIFF5" : "BIFF8" );
printf(" type: %.2X\n", pWB->type);
}
break;
case XLS_RECORD_CODEPAGE:
if (bof1.size < sizeof(WORD_UA)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
pWB->codepage=xlsShortVal(*(WORD_UA *)buf);
if(xls_debug) printf("codepage=%x\n", pWB->codepage);
break;
case XLS_RECORD_CONTINUE:
if(once) {
if (bof2.id==XLS_RECORD_SST) {
if ((retval = xls_appendSST(pWB,buf,bof1.size)) != LIBXLS_OK)
goto cleanup;
}
bof1=bof2;
}
break;
case XLS_RECORD_WINDOW1:
if (bof1.size < sizeof(WIND1)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
{
WIND1 *w = (WIND1*)buf;
xlsConvertWindow(w);
pWB->activeSheetIdx = w->itabCur;
if(xls_debug) {
printf("WINDOW1: ");
printf("xWn : %d\n", w->xWn/20);
printf("yWn : %d\n", w->yWn/20);
printf("dxWn : %d\n", w->dxWn/20);
printf("dyWn : %d\n", w->dyWn/20);
printf("grbit : %d\n", w->grbit);
printf("itabCur: %d\n", w->itabCur);
printf("itabFi : %d\n", w->itabFirst);
printf("ctabSel: %d\n", w->ctabSel);
printf("wTabRat: %d\n", w->wTabRatio);
}
}
break;
case XLS_RECORD_SST:
if (bof1.size < sizeof(SST)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
//printf("ADD SST\n");
//if(xls_debug) dumpbuf((BYTE *)"/tmp/SST",bof1.size,buf);
xlsConvertSst((SST *)buf);
if ((retval = xls_addSST(pWB,(SST*)buf,bof1.size)) != LIBXLS_OK) {
goto cleanup;
}
break;
case XLS_RECORD_EXTSST:
//if(xls_debug > 1000) dumpbuf((BYTE *)"/tmp/EXTSST",bof1.size,buf);
break;
case XLS_RECORD_BOUNDSHEET:
if (bof1.size < sizeof(BOUNDSHEET)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
{
//printf("ADD SHEET\n");
BOUNDSHEET *bs = (BOUNDSHEET *)buf;
xlsConvertBoundsheet(bs);
//char *s;
// different for BIFF5 and BIFF8
/*s = */ xls_addSheet(pWB, bs, bof1.size);
}
break;
case XLS_RECORD_XF:
if(pWB->is5ver) {
if (bof1.size < sizeof(XF5)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
XF5 *xf;
xf = (XF5 *)buf;
xlsConvertXf5(xf);
if ((retval = xls_addXF5(pWB,xf)) != LIBXLS_OK) {
goto cleanup;
}
if(xls_debug) {
printf(" font: %d\n", xf->font);
printf(" format: %d\n", xf->format);
printf(" type: %.4x\n", xf->type);
printf(" align: %.4x\n", xf->align);
printf("rotatio: %.4x\n", xf->color);
printf(" ident: %.4x\n", xf->fill);
printf("usedatt: %.4x\n", xf->border);
printf("linesty: %.4x\n", xf->linestyle);
}
} else {
if (bof1.size < sizeof(XF8)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
XF8 *xf;
xf = (XF8 *)buf;
xlsConvertXf8(xf);
if ((retval = xls_addXF8(pWB,xf)) != LIBXLS_OK) {
goto cleanup;
}
if(xls_debug) {
xls_showXF(xf);
}
}
break;
case XLS_RECORD_FONT:
case XLS_RECORD_FONT_ALT:
if (bof1.size < sizeof(FONT)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
{
char *s;
FONT *f = (FONT*)buf;
xlsConvertFont(f);
s = xls_addFont(pWB,f, bof1.size);
if(xls_debug) {
printf(" height: %d\n", f->height);
printf(" flag: 0x%x\n", f->flag);
printf(" color: 0x%x\n", f->color);
printf(" weight: %d\n", f->bold);
printf("escapem: 0x%x\n", f->escapement);
printf("underln: 0x%x\n", f->underline);
printf(" family: 0x%x\n", f->family);
printf("charset: 0x%x\n", f->charset);
if(s) printf(" name: %s\n", s);
}
}
break;
case XLS_RECORD_FORMAT:
if (bof1.size < sizeof(FORMAT)) {
retval = LIBXLS_ERROR_PARSE;
goto cleanup;
}
xlsConvertFormat((FORMAT *)buf);
if ((retval = xls_addFormat(pWB, (FORMAT*)buf, bof1.size)) != LIBXLS_OK) {
goto cleanup;
}
break;
case XLS_RECORD_STYLE:
if(xls_debug) {
struct { unsigned short idx; unsigned char ident; unsigned char lvl; } *styl;
styl = (void *)buf;
printf(" idx: 0x%x\n", styl->idx & 0x07FF);
if(styl->idx & 0x8000) {
printf(" ident: 0x%x\n", styl->ident);
printf(" level: 0x%x\n", styl->lvl);
} else {
char *s = get_string((char *)&buf[2], bof1.size - 2, 1, pWB->is5ver, pWB->charset);
printf(" name=%s\n", s);
}
}
break;
case XLS_RECORD_PALETTE:
if(xls_debug > 10) {
unsigned char *p = buf + 2;