How to fill a label with text read from a file .msg - c++

I want to fill a label with some text read from a file.msg. I think i've somehow managed to read from the file but now i need to fill the label with what i've read.
void __fastcall TErrorPanel::lblOpMsgErClick(TObject *Sender)
{
char OutBuf[500];
char OutBuf2[500];
static int Func_exec = 0;
if (Func_exec == 0)
{
Func_exec = 1;
if (tpgm_cfg.TestMod.RejectModule == 0)
{
GetMessage(1, SYSMSGIMG, OutBuf, gPathMsgFile);
}
else
{
GetMessage(2, SYSMSGIMG, OutBuf2, gPathMsgFile);
}
Func_exec = 0;
}
return;
}
The GetMessage custom function, at the moment it shows MsgNF, it looks like it isn't picking up the content of the OutBuf
void GetMessage(int Code,char *Section, char *OutBuf, char *PathMsgFile, int InsErrCode)
{
char buff[512],Msg[500],sCode[10];
char *p;
int cmpres;
long rOffset = 0;
itoa(Code,sCode,10);
::GetPrivateProfileString(Section, sCode, "MsgNf", buff, sizeof(buff), PathMsgFile);
rOffset = ::GetPrivateProfileInt(Section, "Offset", 0, PathMsgFile);
cmpres=strcmp("MsgNf",buff);
if (cmpres==0)
{
sprintf(Msg,"Message[%ld]: Not Found !",Code + rOffset);
}
do
{
p = strchr (buff , '|');
if(p != NULL)
{
*p = '\n';
}
}while(p != NULL);
strcpy(OutBuf, buff);
if (strcmpi(SYSERRORMSG,Section)==0)
{
sprintf(buff,"Error[%ld]-%s", Code + rOffset, OutBuf);
strcpy(OutBuf,buff);
rmLastErrorCode = Code;
}
return;
}

This is how you generally set the text to display:
label_name->Caption = "Text to display";
However, I don't know how to fit that into the code you've shown.

Related

Creating a history function for a Unix Shell

Here is what my program currently looks like. I have to add history functionality that gets stored in a file 'mysh.history'. Currently I expect my output to simply append each user command in my shell to the file.
first line of output
first line of output
It only appends the first input into the shell instance. I think my problem lies with my understanding of the fork() process but I'm not sure what is going on. Any suggestions?
#define MYSH_BUFFERSIZE 64
#define MYSH_DELIM " \t\n"
fstream file;
// custom function declarations
int mysh_exit(char **args);
int mysh_add_history(char **args);
int mysh_history(char **);
char byebye[] = "byebye";
char exit_program[] = "exit";
char history[] = "history";
// contains names of all custom shell commands implemented
char *lookup_str[] = {byebye, exit_program, history};
// holds references to all commands in lookup_str[]
// order or commands must match each other
int (*lookup_func[])(char **) = {
&mysh_exit,
&mysh_exit,
&mysh_history
};
/* custom shell commands implementations BEGIN*/
// Without the argument, it prints out the recently typed commands (with their
// arguments), in reverse order, with numbers
// If the argument ā€œ-cā€ is passed, it clears the list of recently typed commands.
void clear_history()
{
file.close();
file.open("mysh.history", ios::trunc);
}
int mysh_add_history(char *line)
{
// if exists then append to the history
if (access("mysh.history", F_OK) == 0)
{
file.open("mysh.history", ios::app);
}
// otherwise create mysh.history and start writing
else
{
file.open("mysh.history", ios::out);
}
file << line << "\n";
return 0;
}
int mysh_history(char **)
{
return 0;
}
int mysh_exit(char **args)
{
return 0;
}
int num_commands()
{
return sizeof(lookup_str) / sizeof(char *);
}
/* custom shell functions END*/
/* main shell processes BEGIN*/
// returns the tokens (arguments) array after tokenizing line from mysh_read_line()
char **mysh_split_args(char *line)
{
int buffer_size = MYSH_BUFFERSIZE;
int current_pos = 0;
char **tokens = (char **)malloc(buffer_size * sizeof(char *));
char *tok;
if (!tokens)
{
printf("mysh: memory allocation error\n");
exit(EXIT_FAILURE);
}
tok = strtok(line, MYSH_DELIM);
while (tok != NULL)
{
tokens[current_pos] = tok;
current_pos++;
if (current_pos >= buffer_size)
{
buffer_size += MYSH_BUFFERSIZE;
tokens = (char **)realloc(tokens, buffer_size * sizeof(char *));
if (!tokens)
{
printf("mysh: memory allocation error\n");
exit(EXIT_FAILURE);
}
}
tok = strtok(NULL, MYSH_DELIM);
}
tokens[current_pos] = NULL;
return tokens;
}
// mysh_read_line allocates MYSH_BUFFER_SIZE of memory to the intial buffer
// it reallocates memory as needed with getLine() function
// returns line to be processed and tokenized by mysh_split_args()
char *mysh_read_line(void)
{
char *line = NULL;
size_t buffersize = 0;
// getLine() also needs to check for EOF after in the case of text files being read.
if (getline(&line, &buffersize, stdin) == -1)
{
if (feof(stdin))
{
exit(EXIT_SUCCESS);
}
else
{
printf("failed to read line\n");
exit(EXIT_FAILURE);
}
}
return line;
}
// args passed comes from mysh_split_args()
int mysh_launch_process(char **args)
{
pid_t pid;
pid_t wpid;
int state;
pid = fork();
// if we enter child process
if (pid == 0)
{
if (execvp(args[0], args) == -1)
{
printf("error in mysh\n");
}
exit(EXIT_FAILURE);
}
// forking failed
else if (pid < 0)
{
printf("error in mysh\n");
}
else
{
// if we enter parent process
do
{
wpid = waitpid(pid, &state, WUNTRACED);
} while (!WIFEXITED(state) && !WIFSIGNALED(state));
}
return 1;
}
// calls mysh_launch_process() and handles programs being called
int mysh_execute(char **args)
{
int i;
if (args[0] == NULL)
{
return 1;
}
for (i = 0; i < num_commands(); i++)
{
if (strcmp(args[0], lookup_str[i]) == 0)
{
if (strcmp(args[0], "history") == 0 && strcmp(args[1], "-c"))
{
clear_history();
}
return (*lookup_func[i])(args);
}
}
return mysh_launch_process(args);
}
void mysh_loop(void)
{
char *line;
char **args;
int state;
do
{
printf("# ");
line = mysh_read_line();
mysh_add_history(line);
args = mysh_split_args(line);
state = mysh_execute(args);
free(line);
free(args);
} while (state);
}
int main(int argc, char **argv)
{
// run main program loop
mysh_loop();
file.close();
return EXIT_SUCCESS;
}
/* main shell processes END*/```

How gets size of char[] when i read from a text file

I'm reading a .txt file. I need to read at most 254 characters into my char* buffer, so I did this:
char *buffer = new char[255];
***Some Code***
if (!feof(fichero))
{
if (fgets(buffer, 254, fichero) != NULL)
{
How do get the size of the buffer read? Right now I'm using a manual method to find '\n' and use its position as the size. But is there a better way?
My code for now:
char *buffer = new char[255];
int tamanio;
***more code***
if (!feof(fichero))
{
if (fgets(buffer, 254, fichero) != NULL)
{
//printarCadena(buffer);
tamanio = limpiarBuffer(buffer);
printf("Tamanio buffer: %i \n", tamanio);
int Gestor::limpiarBuffer(char* buffer)
{
int i;
for(i = 0; i < int(strlen(buffer));i++)
{
if(buffer[i] == '\n')
return i;
}
return int(strlen(buffer) - 1);
}
Edit: I`ve to use Char*, University vibes
Edit2: I've to read line by line, if line ve more than 255 characteres, i read as 2 or more lines
int getSize(char* buffer)
{
int i;
for(i = 0; i < int(strlen(buffer));i++)
{
if(buffer[i] == '\n')
return i;
}
return strlen(buffer);
}
By now no other way to do with char*

How does one locate a pointer error?

I am attempting to create a program to create a Markov chain but I am having pointer problems. When I run the Program I get a segmentation fault.
#include <stdio.h>
#include <cstring>
#include <cstdlib>
struct word;
struct nextword
{
word* sourceword;
word* next = 0;
};
int wordcount;
struct word
{
char* wordstr;
struct word* next = 0;
nextword* followingword = 0;
int nextwordcount = 0;
};
int main()
{
word* firstword = 0;
char * buffer = 0;
long length;
FILE * f = fopen ("alice.txt", "rb");
if (f)
{
fseek (f, 0, SEEK_END);
length = ftell (f);
fseek (f, 0, SEEK_SET);
buffer = (char *)malloc (length);
if (buffer)
{
fread (buffer, 1, length, f);
}
fclose (f);
}
if (buffer)
{
char wordbuffer[500];
int fileindex = 0;
while(fileindex < length-1)
{
int wordindex = 0;
while(buffer[fileindex] != ' ')
{
wordbuffer[wordindex] = buffer[fileindex];
wordindex++;
fileindex++;
}
if(wordindex != 0)
{
wordbuffer[wordindex] = '\0';
word* newword = (word*)malloc(sizeof(word));
char* newwordstr = (char*)malloc((strlen(wordbuffer)+1)*sizeof(char));
strcpy(newword->wordstr, newwordstr);
if(!firstword)
{
firstword = newword;
}
else
{
word* testword = firstword;
while(!testword->next)
{
testword = (testword->next);
}
testword->next = newword;
printf(newword->wordstr);
}
}
return 0;
}
}
else
{
return 1;
}
}
I attempted to remove the file reading part and replace it with a hard coded string, but the problem remained.
You might want to read about STL and use a list. Or use a C list, see a couple of examples,
Adding node in front of linklist
How to pop element from tail in linked list?
Trying to make linkedlist in C
Several problems. Fixed some. compiles.
I have annotated the code with places where you need to fix bounds checking, and the big problem was likely the strcpy to the struct word->wordstr uninitialized char*,
#include <stdio.h>
#include <cstring>
#include <cstdlib>
struct word;
struct nextword
{
word* sourceword;
word* next = 0;
};
int wordcount;
struct word
{
char* wordstr; //what do you think this pointer points to?
struct word* next = 0;
nextword* followingword = 0;
int nextwordcount = 0;
};
int main()
{
FILE* fh = NULL;
word* firstword = 0;
char* buffer = 0;
char* fname = "alice.txt";
long length = 0; //you did not initialize length
if ( (fh = fopen ("alice.txt", "rb")) )
{
//why not use fstat to get file size?
//why not use mmap to read file?
fseek (fh, 0, SEEK_END);
length = ftell (fh); //ok, length set here
fseek (fh, 0, SEEK_SET);
if( (buffer = (char *)malloc (length)) )
{
fread (buffer, 1, length, fh);
}
fclose (fh);
}
else
{
printf("error: cannot open %s",fname);
exit(1);
}
printf("read %s, %ld\n",fname,length);
if (!buffer)
{
printf("error: cannot open %s",fname);
exit(1);
//use exit, to return from main() //return 1;
}
//already checked buffer
{
int fileindex = 0;
//put wordbuffer after fileindex, avoids stackoverflow overwrite
char wordbuffer[500]; //500 bytes on stack, initialize?
memset(wordbuffer,0,sizeof(wordbuffer));
while(fileindex < length-1)
{
int wordindex = 0;
//several errors in this line, check for null terminator,
//check for newline, tab, basically any whitespace
//while(buffer[fileindex] != ' ')
while( buffer[fileindex] && buffer[fileindex] != ' ' )
{
wordbuffer[wordindex] = buffer[fileindex];
wordindex++;
fileindex++;
//here is another error, do not overflow your stack based buffer
if( wordindex>sizeof(buffer)-1 ) break; //do not overflow buffer
}
wordbuffer[wordindex] = '\0'; //terminate wordbuffer
//since you chose wordindex signed, you want it > 0
if(wordindex > 0)
{
//use a constructor
word* newword = (word*)malloc(sizeof(word));
//use a constructor
//or just use strdup, since it is just a cstring
char* newwordstr = strdup(wordbuffer);
//no, just set pointer to the above allocated string
//strcpy(newword->wordstr, newwordstr);
newword->wordstr = newwordstr;
if(!firstword)
{
firstword = newword;
}
else
{
word* testword = firstword;
while(!testword->next)
{
testword = (testword->next);
}
testword->next = newword;
printf(newword->wordstr);
}
}
return 0;
}
}
exit(0); //done
}
This compiles and runs without error, you need to look up linked list handling. You should implement a linked list, and then add word elements to list.

can not query values from windows registry

I writing program for the Windows registry and trying to query values from it, but even if I running my own program with the permissions of Administrator, I can not read all parameters and got error code 5 - Access Denied for some values. But at the same time standard regedit could show me that value. What did i doing wrong?
I have a class for the registry RegistryClass
RegistryClass.h:
class RegistryClass
{
HKEY hKey;
public:
int GetCountOfKeys();
bool OpenKey(HKEY key, std::string path);
void EnumKeys(char ** result, int * count);
...
}
RegistryClass.cpp
#include "RegistryClass.h"
...
bool RegistryClass::OpenKey(HKEY key, std::string path)
{
if(RegOpenKeyExA(key,path.c_str(),NULL,KEY_ALL_ACCESS,&hKey) == ERROR_SUCCESS)
{
return true;
}
hKey = NULL;
return false;
}
int RegistryClass::GetCountOfKeys()
{
DWORD count = 0;
char keyName [256];
DWORD len = 255;
while(1)
{
if(RegEnumKeyExA(hKey,count,keyName,&len,NULL,NULL,NULL,NULL) != ERROR_SUCCESS)
break;
count++;
len = 255;
}
return count;
}
void RegistryClass::EnumKeys(char ** result, int * count)
{
if(hKey == NULL)
return;
*count = 0;
DWORD dwIndex = 0; // current key
char keyName [255]; // current key name
DWORD lpcchName = 255; // name length
int error;
do
{
error = RegEnumKeyExA(hKey,dwIndex,keyName,&lpcchName,NULL,NULL,NULL,NULL);
if(error == ERROR_SUCCESS)
{
memcpy(result[(*count)],keyName,lpcchName);
(*count)++;
}
dwIndex++;
lpcchName = 255;
}while(error == ERROR_SUCCESS);
}
in main program i trying to retrive keys
void MainWindow::InitializeFirstState()
{
item_HKEY_CLASSES_ROOT = new QTreeWidgetItem();
item_HKEY_CLASSES_ROOT->setText(0,"HKEY_CLASSES_ROOT");
// and other keys
...
tree->addTopLevelItem(item_HKEY_CLASSES_ROOT);
...
AddInternalKeys(item_HKEY_CLASSES_ROOT,true);
...
}
...
void AddInternalKeys(QTreeWidgetItem * item, bool rec)
{
std::string currentPath = GetFullPathKey(item);
// first key name
std::string keyName = GetParentKeyName(item);
RegistryClass * regC = new RegistryClass();
HKEY key;
if(strcmp(keyName.c_str(),"HKEY_CLASSES_ROOT") == 0)
{
key = HKEY_CLASSES_ROOT;
}
else if(strcmp(keyName.c_str(),"HKEY_CURRENT_USER") == 0)
{
key = HKEY_CURRENT_USER;
}
else if(strcmp(keyName.c_str(),"HKEY_LOCAL_MACHINE") == 0)
{
key = HKEY_LOCAL_MACHINE;
}
else if(strcmp(keyName.c_str(),"HKEY_USERS") == 0)
{
key = HKEY_USERS;
}
else // HKEY_CURRENT_CONFIG
{
key = HKEY_CURRENT_CONFIG;
}
if(regC->OpenKey(key,currentPath) == true)
{
internalLog->print("key opened succesfully\n");
}
else internalLog->print("key was not opened\n");
int count = regC->GetCountOfKeys();
char ** keys = (char **) malloc(sizeof(char *) * count);
for(int i=0;i<count;i++)
{
keys[i] = (char *) malloc(sizeof(char) * 256);
memset(keys[i],0,sizeof(char) * 256);
}
regC->EnumKeys(keys,&count);
regC->CloseKey();
delete regC;
QTreeWidgetItem * newItem;
count--;
while(count >= 0)
{
newItem = new QTreeWidgetItem();
newItem->setText(0,keys[count]);
item->addChild(newItem);
std::string str = keys[count];
AddKeyNames(newItem,str);
free(keys[count]);
if(rec == true)
AddInternalKeys(newItem,false);
count--;
}
free(keys);
}
You are asking for too much access. You are asking for KEY_ALL_ACCESS when all you actually need is KEY_READ. You do not have all-access permission, but you do have read permission.

Open file from memory buffer using minizip

I am searching how to open archive from memory buffer using minizip.
I found ioapi_mem_c.zip from their page http://www.winimage.com/zLibDll/minizip.html.
I can't understand how to use it. Can some one give me an example?
I solved my problem for unziping:
I added this function to unzip.c
extern unzFile ZEXPORT unzOpenBuffer (const void* buffer, uLong size)
{
char path[16] = {0};
zlib_filefunc64_32_def memory_file;
uLong base = (uLong)buffer;
sprintf(path, "%x+%x", base, size);
fill_memory_filefunc64_32(&memory_file);
return unzOpenInternal(path, &memory_file, 0);
}
And made some changes in ioapi_mem.c:
void fill_memory_filefunc64_32 (pzlib_filefunc_def)
zlib_filefunc64_32_def* pzlib_filefunc_def;
{
pzlib_filefunc_def->zopen32_file = fopen_mem_func;
pzlib_filefunc_def->zfile_func64.zopen64_file = fopen_mem_func;
pzlib_filefunc_def->zfile_func64.zread_file = fread_mem_func;
pzlib_filefunc_def->zfile_func64.zwrite_file = fwrite_mem_func;
pzlib_filefunc_def->ztell32_file = ftell_mem_func;
pzlib_filefunc_def->zseek32_file = fseek_mem_func;
pzlib_filefunc_def->zfile_func64.zseek64_file = NULL;
pzlib_filefunc_def->zfile_func64.zclose_file = fclose_mem_func;
pzlib_filefunc_def->zfile_func64.zerror_file = ferror_mem_func;
pzlib_filefunc_def->zfile_func64.opaque = NULL;
}
I hope this will help someone who will have the same problem.
And Here is simple class implementation how to use it:
void ZipArchiveImpl::OpenArchive()
{
ASSERT(!mInited, "Already opened.");
if ((mFileMode == FM_READ))
{
if (mArchiveName.size() == 0)
{
u32 sz = mFile->GetFileSize();
mUnzBlock.Resize(sz);
mFile->SetPosition(0);
mFile->Read(mUnzBlock.Data(), mUnzBlock.GetSizeInBytes());
mUnzHandle = unzOpenBuffer(mUnzBlock.Data(), mUnzBlock.GetSizeInBytes());
}
else
{
mUnzHandle = unzOpen(mArchiveName.c_str());
}
if (!mUnzHandle) return;
FillMap();
}
else if (mFileMode == FM_WRITE)
{
ASSERT0(mArchiveName.size());
mZipHandle = zipOpen(mArchiveName.c_str(), 0);
if (!mZipHandle) return;
}
mInited = true;
}
IFile* ZipArchiveImpl::OpenRead(const std::string& name)
{
if (IsExist(name))
{
ZipFileInfo info = mFileMap.find(name)->second;
MemoryBlock block(1);
block.Resize(info.uncompressedSize);
int res = unzGoToFilePos(mUnzHandle, &info.filePosInfo);
if (UNZ_OK != res)
{
return false;
}
// open the current file with optional password
if (mArchivePassword != "")
{
res = unzOpenCurrentFilePassword(info.zipFileHandle, mArchivePassword.c_str());
}
else
{
res = unzOpenCurrentFile(info.zipFileHandle);
}
if (UNZ_OK != res)
{
return false;
}
// read uncompressed data
int readResult = unzReadCurrentFile(info.zipFileHandle, block.Data(), info.uncompressedSize);
// close the file
res = unzCloseCurrentFile(info.zipFileHandle);
if (UNZ_OK != res)
{
return false;
}
if (info.uncompressedSize == readResult)
{
return ROBE_NEW MemoryFile(block.Data(), info.uncompressedSize);
}
else
{
return NULL;
}
}
else
{
return NULL;
}
}
IFile* ZipArchiveImpl::OpenRead(u32 id)
{
ASSERT0(mFileNames.size() > id);
if (IsExist(mFileNames[id]))
{
return OpenRead(mFileNames[id]);
}
else
{
return NULL;
}
}
void ZipArchiveImpl::FillMap()
{
s32 walkRes = unzGoToFirstFile(mUnzHandle);
unz_file_info info;
while (UNZ_OK == walkRes)
{
// get info about current file
char currentFileName[512];
s32 fileInfoRes = unzGetCurrentFileInfo(mUnzHandle, &info, currentFileName, sizeof(currentFileName), 0, 0, 0, 0);
std::string name = std::string(currentFileName);
mFileNames.push_back(name);
InitInfo(name, &info);
walkRes = unzGoToNextFile(mUnzHandle);
}
OpenRead(0);
if (UNZ_END_OF_LIST_OF_FILE != walkRes)
{
}
}
void ZipArchiveImpl::InitInfo(const std::string& name, unz_file_info* info)
{
ZipFileInfo zfi;
mFileMap.insert(std::pair<std::string, ZipFileInfo>(name, zfi));
mFileMap[name].zipFileHandle = mUnzHandle;
int res = unzGetFilePos(mFileMap[name].zipFileHandle, &mFileMap[name].filePosInfo);
mFileMap[name].uncompressedSize = info->uncompressed_size;
char lastsymbol = name[name.size() - 1];
if (lastsymbol == '/' || lastsymbol == '\\')
{
mFileMap[name].type = ZFT_DIR;
}
else
{
mFileMap[name].type = ZFT_FILE;
}
}
ZipArchiveImpl::~ZipArchiveImpl()
{
if (mInited)
{
if (mUnzHandle) unzClose(mUnzHandle);
if (mZipHandle) zipClose(mZipHandle, 0);
}
}
bool ZipArchiveImpl::IsExist(const std::string& name)
{
return (mFileMap.find(name) != mFileMap.end());
}
void ZipArchiveImpl::SaveFileToZip(const std::string& path, IFile* file)
{
const u32 DefaultFileAttribute = 32;
MemoryBlock block(1);
block.Resize(file->GetFileSize());
file->Read(block.Data(), block.GetSizeInBytes());
zip_fileinfo zinfo;
memset(&zinfo, 0, sizeof(zinfo));
zinfo.internal_fa = 0;
zinfo.external_fa = DefaultFileAttribute;
::boost::posix_time::ptime pt = ::boost::posix_time::from_time_t(time(0));
std::tm ptm = ::boost::posix_time::to_tm(pt);
zinfo.dosDate = 0;
zinfo.tmz_date.tm_year = ptm.tm_year;
zinfo.tmz_date.tm_mon = ptm.tm_mon;
zinfo.tmz_date.tm_mday = ptm.tm_mday;
zinfo.tmz_date.tm_hour = ptm.tm_hour;
zinfo.tmz_date.tm_min = ptm.tm_min;
zinfo.tmz_date.tm_sec = ptm.tm_sec;
zipOpenNewFileInZip(mZipHandle, path.c_str(), &zinfo, 0, 0, 0, 0, 0, Z_DEFLATED, Z_BEST_SPEED);
zipWriteInFileInZip(mZipHandle, block.Data(), block.GetSizeInBytes());
zipCloseFileInZip(mZipHandle);
}
unsigned long ZipArchiveImpl::GetFileAttributes(const std::string& filePath)
{
unsigned long attrib = 0;
#ifdef WIN32
attrib = ::GetFileAttributes(filePath.c_str());
#else
struct stat path_stat;
if (::stat(filePath.c_str(), &path_stat) == 0)
{
attrib = path_stat.st_mode;
}
#endif
return attrib;
}
added this function to unzip.c
extern unzFile ZEXPORT unzOpenBuffer(const void* buffer, uLong size)
{
zlib_filefunc_def filefunc32 = { 0 };
ourmemory_t *punzmem = (ourmemory_t*)malloc(sizeof(ourmemory_t));
punzmem->size = size;
punzmem->base = (char *)malloc(punzmem->size);
memcpy(punzmem->base, buffer, punzmem->size);
punzmem->grow = 0;
punzmem->cur_offset = 0;
punzmem->limit = 0;
fill_memory_filefunc(&filefunc32, punzmem);
return unzOpen2(NULL, &filefunc32);
}
Looking at the code in the link, there is no obvious way to pass a memory buffer. Save your memory buffer as a file, unzip it.
Or you could implement your own zlib_filefunc_def variant that operates on a lump of memory instead of a file. I don't think that is very hard to do.
Checkout the nmoinvaz fork of minizip: To unzip from a zip file in memory use fill_memory_filefunc and supply a proper ourmemory_t structure
zlib_filefunc_def filefunc32 = {0};
ourmemory_t unzmem = {0};
unzmem.size = bufsize;
unzmem.base = (char *)malloc(unzmem.size);
memcpy(unzmem.base, buffer, unzmem.size);
fill_memory_filefunc(&filefunc32, &unzmem);
unzOpen2("__notused__", &filefunc32);