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

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;

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

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

解决MASM32代码汇编出错: error A2181: initializer must be a string or single item_第1张图片

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 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

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