解决MASM32代码汇编出错： error A2181: initializer must be a string or single item

清疚 2024-03-24 22:24 32阅读 0赞

最近用MASM32编程更新SysInfo，增加对IPv6连接信息的收集，使用到了

typedef struct _MIB_TCP6ROW_OWNER_MODULE {
      UCHAR         ucLocalAddr[16];
      DWORD         dwLocalScopeId;
      DWORD         dwLocalPort;
      UCHAR         ucRemoteAddr[16];
      DWORD         dwRemoteScopeId;
      DWORD         dwRemotePort;
      DWORD         dwState;
      DWORD         dwOwningPid;
      LARGE_INTEGER liCreateTimestamp;
      ULONGLONG     OwningModuleInfo[TCPIP_OWNING_MODULE_SIZE];
    } MIB_TCP6ROW_OWNER_MODULE, *PMIB_TCP6ROW_OWNER_MODULE;

和

typedef struct _MIB_TCP6TABLE_OWNER_MODULE {
      DWORD                    dwNumEntries;
      MIB_TCP6ROW_OWNER_MODULE table[ANY_SIZE];
    } MIB_TCP6TABLE_OWNER_MODULE, *PMIB_TCP6TABLE_OWNER_MODULE;

使用[继续更新完善：C++ 结构体代码转MASM32代码][C_ _MASM32]

将它们转换为MASM32的定义：

;typedef struct _MIB_TCP6ROW_OWNER_MODULE {
    ;  UCHAR         ucLocalAddr[16];
    ;  DWORD         dwLocalScopeId;
    ;  DWORD         dwLocalPort;
    ;  UCHAR         ucRemoteAddr[16];
    ;  DWORD         dwRemoteScopeId;
    ;  DWORD         dwRemotePort;
    ;  DWORD         dwState;
    ;  DWORD         dwOwningPid;
    ;  LARGE_INTEGER liCreateTimestamp;
    ;  ULONGLONG     OwningModuleInfo[TCPIP_OWNING_MODULE_SIZE];
    ;} MIB_TCP6ROW_OWNER_MODULE, *PMIB_TCP6ROW_OWNER_MODULE;
    
    MIB_TCP6ROW_OWNER_MODULE STRUCT
    	ucLocalAddr     UCHAR	16 dup (?) 
    	dwLocalScopeId	DWORD	?
    	dwLocalPort     DWORD	?
    	ucRemoteAddr	UCHAR	16 dup (?)
    	dwRemoteScopeId	DWORD	?
    	dwRemotePort	DWORD	?
    	dwState	        DWORD	?
    	dwOwningPid     DWORD	?
    	liCreateTimestamp	LARGE_INTEGER <>
    	OwningModuleInfo	ULONGLONG	TCPIP_OWNING_MODULE_SIZE dup(?)
    MIB_TCP6ROW_OWNER_MODULE ENDS
    
    PMIB_TCP6ROW_OWNER_MODULE typedef ptr MIB_TCP6ROW_OWNER_MODULE
    
    ;typedef struct _MIB_TCP6TABLE_OWNER_MODULE {
    ;  DWORD                    dwNumEntries;
    ;  MIB_TCP6ROW_OWNER_MODULE table[ANY_SIZE];
    ;} MIB_TCP6TABLE_OWNER_MODULE, *PMIB_TCP6TABLE_OWNER_MODULE;
    
    MIB_TCP6TABLE_OWNER_MODULE STRUCT
    	dwNumEntries DWORD	?
        table        MIB_TCP6ROW_OWNER_MODULE ANY_SIZE dup(<?>)
    MIB_TCP6TABLE_OWNER_MODULE ENDS 
    
    PMIB_TCP6TABLE_OWNER_MODULE typedef ptr MIB_TCP6TABLE_OWNER_MODULE

但是程序代码在汇编时出错：

> error A2181: initializer must be a string or single item

![f3f05533b97041d9aced1abd7addaa4c.jpeg][]

第175行代码就位于MIB\_TCP6TABLE\_OWNER\_MODULE 结构体定义代码中：

MIB_TCP6TABLE_OWNER_MODULE STRUCT                          ;173
    	dwNumEntries DWORD	?                                   ;174
        table        MIB_TCP6ROW_OWNER_MODULE ANY_SIZE dup(<?>) ;175
    MIB_TCP6TABLE_OWNER_MODULE ENDS                             ;176

这个定义 与 [MASM32编写TcpStatC再进阶 显示PID和对应进程说明符][MASM32_TcpStatC_ _PID] 中的

MIB_TCPTABLE_OWNER_MODULE struct
        dwNumEntries DWORD ?
        table        MIB_TCPROW_OWNER_MODULE ANY_SIZE dup(<?>)
    MIB_TCPTABLE_OWNER_MODULE ends

是类似的，所以先检查了MIB\_TCP6ROW\_OWNER\_MODULE 结构体代码定义，没有发现问题。

估计问题还是出在

table        MIB_TCPROW_OWNER_MODULE ANY_SIZE dup(<?>)

这行代码本身。结构体一般有多个成员， 初始值 <?> 这种写法，用一个？号可能不妥。

于是把代码改成

table        MIB_TCPROW_OWNER_MODULE ANY_SIZE dup(<>)

这次代码顺利汇编完成

[C_ _MASM32]: https://blog.csdn.net/Purpleendurer/article/details/132260709?spm=1001.2014.3001.5501
[f3f05533b97041d9aced1abd7addaa4c.jpeg]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/13/3b622e20ef65443da423061d97767afd.png
[MASM32_TcpStatC_ _PID]: https://blog.csdn.net/Purpleendurer/article/details/126330731