x64dbg/x64dbg
x64dbg
/
x64dbg
1
0
Fork 0
Code Releases 5 Activity

DBG: fixed a bug in 'getstr' + added function 'strcpy'

This commit is contained in:
Mr. eXoDia 2014-06-30 17:43:59 +02:00
parent 67e2544259
commit cd4e07597f
5 changed files with 61 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
x64_dbg_dbg/instruction.cpp
View File

@ -899,13 +899,13 @@ CMDRESULT cbInstrGetstr(int argc, char* argv[])
dputs("not enough arguments!");
return STATUS_ERROR;
}
VAR_TYPE vartype;
if(!vargettype(argv[1], &vartype))
VAR_VALUE_TYPE valtype;
if(!vargettype(argv[1], 0, &valtype))
{
dprintf("no such variable \"%s\"!\n", argv[1]);
return STATUS_ERROR;
}
if(vartype!=VAR_STRING)
if(valtype!=VAR_STRING)
{
dprintf("variable \"%s\" is not a string!\n", argv[1]);
return STATUS_ERROR;
@ -920,6 +920,7 @@ CMDRESULT cbInstrGetstr(int argc, char* argv[])
memset(string, 0, size+1);
if(!varget(argv[1], string, &size, 0))
{
efree(string, "cbInstrGetstr:string");
dprintf("failed to get variable data \"%s\"!\n", argv[1]);
return STATUS_ERROR;
}
@ -928,6 +929,57 @@ CMDRESULT cbInstrGetstr(int argc, char* argv[])
return STATUS_CONTINUE;
}
CMDRESULT cbInstrCopystr(int argc, char* argv[])
{
if(argc<3)
{
dputs("not enough arguments!");
return STATUS_ERROR;
}
VAR_VALUE_TYPE valtype;
if(!vargettype(argv[2], 0, &valtype))
{
dprintf("no such variable \"%s\"!\n", argv[2]);
return STATUS_ERROR;
}
if(valtype!=VAR_STRING)
{
dprintf("variable \"%s\" is not a string!\n", argv[2]);
return STATUS_ERROR;
}
int size;
if(!varget(argv[2], (char*)0, &size, 0) or !size)
{
dprintf("failed to get variable size \"%s\"!\n", argv[2]);
return STATUS_ERROR;
}
char* string=(char*)emalloc(size+1, "cbInstrGetstr:string");
memset(string, 0, size+1);
if(!varget(argv[2], string, &size, 0))
{
efree(string, "cbInstrCopystr:string");
dprintf("failed to get variable data \"%s\"!\n", argv[2]);
return STATUS_ERROR;
}
uint addr;
if(!valfromstring(argv[1], &addr))
{
efree(string, "cbInstrCopystr:string");
dprintf("invalid address \"%s\"!\n", argv[1]);
return STATUS_ERROR;
}
if(!memwrite(fdProcessInfo->hProcess, (void*)addr, string, strlen(string), 0))
{
efree(string, "cbInstrCopystr:string");
dputs("memwrite failed!");
return STATUS_ERROR;
}
efree(string, "cbInstrCopystr:string");
dputs("string written!");
GuiUpdateAllViews();
return STATUS_CONTINUE;
}
CMDRESULT cbInstrFind(int argc, char* argv[])
{
if(argc<3)

1
x64_dbg_dbg/instruction.h
View File

@ -49,6 +49,7 @@ CMDRESULT cbInstrRefStr(int argc, char* argv[]);
CMDRESULT cbInstrSetstr(int argc, char* argv[]);
CMDRESULT cbInstrGetstr(int argc, char* argv[]);
CMDRESULT cbInstrCopystr(int argc, char* argv[]);
CMDRESULT cbInstrFind(int argc, char* argv[]);
CMDRESULT cbInstrModCallFind(int argc, char* argv[]);

4
x64_dbg_dbg/variable.cpp
View File

@ -263,7 +263,7 @@ bool vardel(const char* name, bool delsystem)
return true;
}
bool vargettype(const char* name, VAR_TYPE* type)
bool vargettype(const char* name, VAR_TYPE* type, VAR_VALUE_TYPE* valtype)
{
char newname[deflen]="$";
int add=0;
@ -273,6 +273,8 @@ bool vargettype(const char* name, VAR_TYPE* type)
VAR* found=varfind(newname, 0);
if(!found)
return false;
if(valtype)
*valtype=found->value.type;
if(type)
*type=found->type;
return true;

2
x64_dbg_dbg/variable.h
View File

@ -48,6 +48,6 @@ bool varget(const char* name, char* string, int* size, VAR_TYPE* type);
bool varset(const char* name, uint value, bool setreadonly);
bool varset(const char* name, const char* string, bool setreadonly);
bool vardel(const char* name, bool delsystem);
bool vargettype(const char* name, VAR_TYPE* type);
bool vargettype(const char* name, VAR_TYPE* type = 0, VAR_VALUE_TYPE* valtype = 0);
#endif // _VARIABLE_H

1
x64_dbg_dbg/x64_dbg.cpp
View File

@ -179,6 +179,7 @@ static void registercommands()
dbgcmdnew("refadd", cbInstrRefadd, false);
dbgcmdnew("setstr\1strset", cbInstrSetstr, false); //set a string variable
dbgcmdnew("getstr\1strget", cbInstrGetstr, false); //get a string variable
dbgcmdnew("copystr\1strcpy", cbInstrCopystr, true); //write a string variable to memory
dbgcmdnew("DebugContinue\1con", cbDebugContinue, true); //set continue status
dbgcmdnew("bpdll", cbBpDll, true); //set dll breakpoint
dbgcmdnew("bcdll", cbBcDll, true); //remove dll breakpoint