void *minizip_unpack_to_memory(void *ptr, int len, int *unpack_len)
{
char *data = (char*)ptr;
if (data[0]!='P'||data[1]!='K') goto unpack_to_mem_fail;
zlib_filefunc_def pzlib_filefunc_def;
fill_memory_filefunc(&pzlib_filefunc_def);
char memname[128];
sprintf(memname,"%lx+%lx", (unsigned long)ptr, (unsigned long)len);
unzFile hFile = unzOpen2(memname,&pzlib_filefunc_def);
if (unzGoToFirstFile(hFile) != UNZ_OK) goto unpack_to_mem_fail;
if (unzOpenCurrentFile(hFile) != UNZ_OK) goto unpack_to_mem_fail;
unsigned char *tot = 0;
unsigned int n_tot=0, n_read=0;
unsigned char buf[1024];
while ((n_read = unzReadCurrentFile(hFile, buf, 1024)) > 0) {
if (tot==0) tot = malloc(n_read); else tot = realloc(tot,n_tot+n_read);
if (tot==0) goto unpack_to_mem_fail;
memcpy(tot+n_tot,buf,n_read);
n_tot+=n_read;
}
unzClose(hFile);
*unpack_len = n_tot;
return tot;
unpack_to_mem_fail:
return 0;
}
void Zips::add(vector<char> &data)
{
zlib_filefunc_def ff;
fill_memory_filefunc(&ff);
zmemdata dta;
dta.data = (char*)&data.front();
dta.size = data.size();
unzFile zp = unzOpen2((const char*)&dta, &ff);
OX_ASSERT(zp);
if (!zp)
return;
_zps.push_back(zpitem());
zpitem& item = _zps.back();
item.handle = zp;
swap(item.data, data);
read(zp);
}
void Zips::add(const unsigned char* data, unsigned int size)
{
zlib_filefunc_def ff;
fill_memory_filefunc(&ff);
zmemdata dta;
dta.data = (char*)data;
dta.size = size;
unzFile zp = unzOpen2((const char*)&dta, &ff);
OX_ASSERT(zp);
if (!zp)
return;
zpitem item;
item.handle = zp;
_zps.push_back(item);
read(zp);
}
extern "C" HZIP OpenArchiveW(WCHAR *lpstrZipFile,char *lpPassword,int dwPasswordLen,bool bZipInMem,int dwFileSize)
{
void *r=NULL;
if (lpstrZipFile)
{
ZIPDECOMPRESSION *p=(ZIPDECOMPRESSION*)_alloc(sizeof(ZIPDECOMPRESSION));
p->bHandleType=HT_DECOMPRESSOR;
if (p)
{
zlib_filefunc64_def ffunc;
p->bInMem=bZipInMem;
if (!bZipInMem)
fill_fopen64_filefunc(&ffunc);
else
{
fill_memory_filefunc(&ffunc);
char filePath[30];
wsprintfA(filePath,"%x+%x",(int)lpstrZipFile,dwFileSize);
lpstrZipFile=(WCHAR*)filePath;
}
if (((lpPassword) && (dwPasswordLen > 0)))
{
p->bEncrypted=true;
memcpy(p->szPassword,lpPassword,dwPasswordLen);
}
p->hZip=unzOpen2_64(lpstrZipFile,&ffunc);
if (p->hZip)
r=p;
}
if (!r)
MemFree(p);
}
else
ArchSetLastError(ARCH_INVALID_PARAMETER);
return r;
}
// Static.
MgByteReader * WriteKmz(const std::string& kml)
{
zlib_filefunc_def fdef;
fill_memory_filefunc(&fdef);
char buff[256];
int outsize = kml.length() + 256;;
char* outbuff = (char*)malloc(outsize);
ourmemory_t *mem = (ourmemory_t *)malloc(sizeof(*mem));
mem->base = outbuff;
mem->size = outsize;
mem->limit = 0;
mem->cur_offset = 0;
sprintf(buff,"%p",mem);
zipFile zipfile_ = zipOpen2(buff, 0,0,&fdef);
if (!zipfile_) {
return false;
}
zipOpenNewFileInZip(zipfile_, "doc.kml", 0, 0, 0, 0, 0, 0, Z_DEFLATED,
Z_DEFAULT_COMPRESSION);
//zipWriteInFileInZip(zipfile_, (void* const)kml.data(),
zipWriteInFileInZip(zipfile_, static_cast<const void*>(kml.data()),
static_cast<unsigned int>(kml.size()));
zipCloseFileInZip(zipfile_);
zipClose(zipfile_, 0);
MgByteReader *breader = new MgByteReader((unsigned char*)outbuff,mem->limit,MgMimeType::Kmz);
free(outbuff);
free(mem);
return breader;
}
enum ApkResult
apk_uncompress_internal(AndroidApk *apk, char **buffer, size_t *size)
{
zlib_filefunc_def filefunc;
fill_memory_filefunc(&filefunc);
char *old_buffer = *buffer;
char path[1024];
sprintf(path, "%x+%x", *buffer, *size);
/* Decompress a single file in a .zip from memory */
unz_file_info info;
unzFile *unz = unzOpen2(path, &filefunc);
unzGoToFirstFile(unz);
unzGetCurrentFileInfo(unz, &info, NULL, 0, NULL, 0, NULL, 0);
*size = info.uncompressed_size;
*buffer = malloc(*size);
unzOpenCurrentFile(unz);
unzReadCurrentFile(unz, *buffer, *size);
unzCloseCurrentFile(unz);
unzClose(unz);
free(old_buffer);
return APK_OK;
}
int minizip_unpack_to_disk(char *path, void *ptr, int len)
{
// check the magic
char *data = (char*)ptr;
if (data[0]!='P'||data[1]!='K') goto unpack_to_disk_fail;
// setup the memory image
zlib_filefunc_def pzlib_filefunc_def;
fill_memory_filefunc(&pzlib_filefunc_def);
char memname[128];
sprintf(memname,"%lx+%lx", (unsigned long)ptr, (unsigned long)len);
unzFile hFile = unzOpen2(memname,&pzlib_filefunc_def);
// get info
unz_global_info globalInfo = {0};
if (!unzGetGlobalInfo(hFile, &globalInfo )==UNZ_OK ) goto unpack_to_disk_fail;
int entries = globalInfo.number_entry;
// do the unpacking
if (unzGoToFirstFile(hFile) != UNZ_OK) goto unpack_to_disk_fail;
int i=0;
while (1) {
char fname[1024];
char filename_inzip[256]={0};
unz_file_info64 file_info;
if (unzGetCurrentFileInfo64(hFile,&file_info,
filename_inzip,sizeof(filename_inzip),
NULL,0,NULL,0)!=UNZ_OK) goto unpack_to_disk_fail;
sprintf(fname,"%s%c%s", path,
#ifdef WIN32
'\\'
#else
'/'
#endif
, filename_inzip);
int fname_len = strlen(filename_inzip);
if (filename_inzip[fname_len-1]=='/'||filename_inzip[fname_len-1]=='\\') {
// it's a directory
_minizip_mkdir(fname);
} else {
// it's a file
if (unzOpenCurrentFile(hFile) != UNZ_OK) goto unpack_to_disk_fail;
FILE *fd =0;
int n_tot=0, n_read=0;
unsigned char buf[32768];
while ((n_read = unzReadCurrentFile(hFile, buf, 32768)) > 0) {
if (!n_tot&&!fd&&!_minizip_file_exists(fname)) {
DMSG("fopen %s", fname);
fd = fopen(fname,"wb");
}
if (fd) {
DMSG("fwrite %i", n_read);
fwrite(buf,n_read,1,fd);
}
n_tot+=n_read;
}
if (fd) { DMSG("fclose"); fclose(fd); }
DMSG("%s [%i]",fname,n_tot);
unzCloseCurrentFile(hFile);
}
if (++i==entries) break;
if (unzGoToNextFile(hFile)!=UNZ_OK) goto unpack_to_disk_fail;
}
// cleanup
unzClose(hFile);
return 0;
unpack_to_disk_fail:
return 1;
}
