binaryfiles

I am trying to write a program to read a binary file from memory execute it and exit but the OS doesn't seem to let me execute it from memory, the entire point of this exercise is to load a binary file with no header into memory. This is my code for the binary file: push eax mov eax,3 mov edi,eax sub eax,edi pop eax leave ret And my loader is as follows: int main(int argc, char **argv){ void (*ptr)(void); FILE *fo = fopen(argv[1],"r"); int l = fseek(fo,0,SEEK_END); fread((void*)ptr,l*sizeof(char),1,fo); ptr(); return 0; } I know I am probably going about this the wrong way. While the code you

How can I write array of Float to binary file and then read it? var array: [Float]: [0.1, 0.2, 0.3] func writeArrayToBinary(array: [Float]) { //... } func readArrayFromBinary() -> [Float] { //... } Please try this... var array: [Float] = [0.1, 0.2, 0.3] func writeArrayToPlist(array: [Float]) { if let arrayPath: String = createArrayPath() { (array as NSArray).writeToFile(arrayPath, atomically: false) } } func readArrayFromPlist() -> [Float]? { if let arrayPath: String = createArrayPath() { if let arrayFromFile: [Float] = NSArray(contentsOfFile: arrayPath) as? [Float] { return arrayFromFile } }

I'm trying to write a method that will, given a file containing values to update or append, will update a second binary file. Apparently, when I overwrite a struct in the binary file, the offsets somehow change and that corrupts everything after it. Am I doing something wrong, and is there a way to prevent this without truncating and appending to the file? Current code: typedef struct{ int number; double price; } stock; void update(char* updatefile, char* binfile){ FILE *fin, *fout; stock *currStock; stock *updateStock; int currPos; int update; int val1=0; double val2=0; currStock = malloc

My Javascript application is downloading quite a bit of data from the server and I was thinking that in addition to normal gzip that's done by the server, I can encode the data in some binary format rather than textual JSON. Is there a standard way of doing this? Ideally it should be some small tool that can take a JSON text file and convert it to a generic binary format and a small Javascript library which decodes it. Also, is there something special that needs to be done in XHR to pass binary data? If gzip doesn't compress well enough, chances are your binary format won't either, especially

I am trying to write values greater than 256 using DataOupPutStream.write() method. When i try reading the same value using DataInputStream.read() it will return 0. So, i used DataOutputStream.writeInt() and DataInputStream.readInt() methods to write and retrieve values greater than 256 and it is working fine. Refer the below code snippet i would like to know the behaviour of the compiler as what it does in the in.readInt() inside the while statement. FileOutputStream fout = new FileOutputStream("T.txt"); BufferedOutputStream buffOut = new BufferedOutputStream(fout); DataOutputStream out = new

Using SharePoint 2013 REST API, I'm successfully uploading files, such as .docx or .png 's to a folder inside a document library using Dropzone.js. I have a function where I initialize my dropzone as follows: myDropzone = new Dropzone("#dropzone"); myDropzone.on("complete", function (file) { myDropzone.removeFile(file); }); myDropzone.options.autoProcessQueue = false; myDropzone.on("addedfile", function (file) { $('.dz-message').hide(); myDropzone.options.url = String.format( "{0}/{1}/_api/web/getfolderbyserverrelativeurl('{2}')/files" + "/add(overwrite=true, url='{3}')", _spPageContextInfo