从汇编中的文件读取 [英] reading from File in assembly

问题描述

我正在尝试从x86程序集中的文件中读取用户名和密码，以进行身份​​验证 显然文件由两行组成，用户名和密码，我如何分别读取这两行并进行比较?

i am trying to read a username and a password from a file in x86 assembly for the perpose of authentication obviously the file consists of two lines , the user name and the password how can i read the two lines seperately and compare them?

我的尝试:

proc read_file

  mov ah,3dh
  lea dx,file_name
  int 21h

  mov bx, ax 
  xor si,si

repeat:

  mov ah, 3fh
  lea dx, buffer
  mov cx, 100 
  int 21h

  mov si, ax
  mov buffer[si], '$'
  mov ah, 09h
  int 21h ;print on screen


  cmp si, 100
  je repeat 

  jmp stop;jump to end
stop:
   RET
    read_file ENDP

推荐答案

您应该使用系统类来做到这一点，这取决于您使用Windows还是Linux. 检查以下内容: http://www.freebsd .org/doc/en/books/developers-handbook/x86-system-calls.html

You should use system class to do that and it depends on whether you use Windows or Linux. Check this : http://www.freebsd.org/doc/en/books/developers-handbook/x86-system-calls.html

这篇关于从汇编中的文件读取的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！