struct myStruct { string name; string gender; }; int main() { fstream file; file.open("binSample_4.dat", ios_base::out|ios_base::binary); if(!file.is_open()) { cout<<"Unable to open the file\n"; return 0; } myStruct obj; obj.name = "Mohtashim Nawaz"; obj.gender = "...
题目存在两个漏洞,一处位于对struct类型返回值的处理,一处位于struct类型的struct字段处理,使用任意一个漏洞均可实现任意地址写入,这里重点描述第一种。 题目漏洞的根源在于编译器使用的调用约定没有正确处理struct类型的返回值。调用约定使用单个寄存器$2传递返回值。当返回值类型为struct时,直接将对应变量的地址存储到寄...
// Golang program to write a structure of// binary data into a filepackagemainimport"encoding/binary"import"fmt"import"os"typeStrstruct{ intNumuint8floatNumfloat32}funcmain() { file, err:=os.Create("data.bin")iferr!=nil{ fmt.Println("Couldn't open file") }varst = Str{10,2.3} er...
On the second point, you need to check the return value of fread to check that it's actually reading some bytes: do { fseek(fp,i*sizeof(struct EmployeeInfo),SEEK_SET); // move file head location if(fread(&emp[i],sizeof(struct EmployeeInfo),1,fp))// read data save to structure ...
// Write the data and close the file cout << "Now writing the data to the file.\n"; for(int i = 0; i < size; i++){ file.write(reinterpret_cast<char *>(&buffer[i]), sizeof(int)); } file.close (); // Open the file and use a binary read to read contents of the fil...
bool StatFile(const char* path, struct stat* st); bool StatFile(std::FILE* fp, struct stat* st); bool StatFile(const char* path, FILESYSTEM_STAT_DATA* pStatData); bool StatFile(std::FILE* fp, FILESYSTEM_STAT_DATA* pStatData); ...
key为 thekeytosomethin 输入时会覆盖首位t fromsm4importSM4Key m =bytes.fromhex("AD6CCDC109FCDDEF83AE9308538EC5375CDD1B4B039919A26924964277C1275F2DD45DF52BB032F7A597C68AEE48AE93") key =b'\x00hekeytosomethin'key0 = SM4Key(key) r = key0.decrypt(m)print(r) ...
//random.cpp -- random access to a binary file#include <iostream>#include<fstream>#include<iomanip>#include<cstdlib>usingnamespacestd;constintLIM =20;constchar* file ="planets.dat";structplanet {charname[LIM];//name of planetdoublepopulation;//its populationdoubleg;//its acceleration}; ...
stlwrite(FILE, FV) writes a stereolithography (STL) file to FILE for a triangulated patch defined by FV (a structure with fields 'vertices' and 'faces'). stlwrite(FILE, FACES, VERTICES) takes faces and vertices separately, rather than in an FV struct ...
the path to shell backend.war ActionServlet 可直接在 url 路径中进行 ognl 表达式注入,但 backend.war 整个应用由于 IPCheckFilter 的 IP 检查,无法从本机以外的地址直接访问 app.war 里 UserController 直接将请求参数 name 拼接到 feign client 的请求路径里,从 localhost 去调用 backend.war 中的接口。因此...