Need a suggestion in searching a file

[Lost User]

Yes I understand your question. And the way to do it, is to get the list of all files in your target set, and then read each file in turn in order to find the string. You can use some the strXXX functions[^] to speed up the searching.

[Lost User]

Sir, What if I do if I run the executable on another computer.I have only "C:\\ and D:\\" drives if I run the executable on another computer which has "C:\\ D:\\ E:\\ " drives my code ultimately fails :( .How can I get the list of all files on the computer on which my executable runs.I sincerely thank you for giving me the excellent link for speed up my searching.

[Lost User]

You really need to learn how to do some more research for yourself. How do you get a list of all the drives? Type "Windows list drives C++" into Google and start reading.

[Lost User]

Yes, this ("Windows list drives C++") didn't strike to my mind. Thank you sir for your kind help.

[David Crow]

Are you referring to GetLogicalDrives() or GetLogicalDriveStrings()?

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[Lost User]

Thank you Sir for your kind help. Can you please suggest me some links related to this? I am searching in google for something related to this(like getting the strings form an executable) but I cannot find one.

[Lost User]

Why do you keep asking this? I have explained what you need to do to find strings in a file, it's now time to go and try it.

[Lost User]

Sir, I have tried a lot and finally figured out something. It is by searching for a specific file with MD5 hashes. Since, I want to search for a specific file through the whole drive. Here is my try

inline std::string narrow(std::wstring const& text)
{
std::locale const loc("");
wchar_t const* from = text.c_str();
std::size_t const len = text.size();
std::vector buffer(len + 1);
std::use_facet >(loc).narrow(from, from + len, '_', &buffer[0]);
return std::string(&buffer[0], &buffer[len]);
}

void _tmain(int argc, TCHAR *argv[])
{

HANDLE hFind;
WIN32\_FIND\_DATA data;

std::string path = "C:\\\\";
std::string fileName = "";
wchar\_t\* file = L"C:\\\\\*";
hFind = FindFirstFile(file, &data);
if (hFind != INVALID\_HANDLE\_VALUE) {
	do {

		fileName = narrow(data.cFileName);

		if (fileName.compare(".") == 0)
			continue;
		if (fileName.compare("..") == 0)
			continue;

		cout << "FileName: " << fileName << " MD5 hash: ";
		// prepare filename
		std::string finalFile = path + fileName;
		char \*cstr = new char\[finalFile.length() + 1\];
		strcpy(cstr, finalFile.c\_str());

		//calc the md5 hash
		char \*\*temp = CALL\_MD5\_Function(cstr);
		cout << temp;
		cout <

I don't know how to iterate if I found a directory, in here

if (fileName.compare(".") == 0)
continue;
if (fileName.compare("..") == 0)
continue;

I used continue statement to break the skip the operation since I am unsure. Could you please suggest me some ways to do it?

Thank you sir for your kind help

[Lost User]

You should move your find processing to a separate function and call that with the root path you wish to search. You can then call that recursively each time you find a directory, something like:

void ProcessFiles(string root, string directory)
{
string searchPath = // root plus directory plus mask
// start the find loop
// if next filename = "." or ".." continue
// if next entry is a directory
// ProcessFiles(searchPath, directory.name);
// ...
}
int main()
{
ProcessFiles("C:\\", NULL);
}

[Lost User]

Thank you sir for your kind help and I am really sorry for the late reply