Function write_file

CVE-2022-34918/exploit/exploit.c:40–44

write_file(): Write a string into a file

// write_file(): Write a string into a file
void write_file(const char *filename, char *text) {
    int fd = open(filename, O_RDWR);
    write(fd, text, strlen(text));
    close(fd);
}

// new_ns(): Change the current namespace to access to netfilter and to be able to write security xattr in a tmpfs
void new_ns(void) {