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// Unicode support by Jim Park -- 08/23/2007
#include "stdafx.h"
#include "Plugin.h"
#include "Buffers.h"
#include "System.h"
HWND g_hwndParent;
#define isvalidnsisvarindex(varnum) ( ((unsigned int)(varnum)) < (__INST_LAST) )
TCHAR *AllocString()
{
return (TCHAR*) GlobalAlloc(GPTR,g_stringsize*sizeof(TCHAR));
}
TCHAR *AllocStr(TCHAR *str)
{
return lstrcpyn(AllocString(), str, g_stringsize);
}
TCHAR* system_popstring()
{
stack_t *pSt;
TCHAR *src, *dst, *retval;
if (!g_stacktop || !*g_stacktop) return NULL;
pSt = *g_stacktop, *g_stacktop = pSt->next, src = pSt->text, dst = (TCHAR*)pSt;
// We don't have to call AllocString+lstrcpy+GlobalFree if we convert the stack item to a string
for (retval = dst;;) if (!(*dst++ = *src++)) return retval;
}
TCHAR *system_pushstring(TCHAR *str)
{
stack_t *th;
if (!g_stacktop) return str;
th=(stack_t*)GlobalAlloc(GPTR,sizeof(stack_t)+(g_stringsize*sizeof(TCHAR)));
lstrcpyn(th->text,str,g_stringsize);
th->next=*g_stacktop;
*g_stacktop=th;
return str;
}
TCHAR *system_getuservariable(int varnum)
{
if (!isvalidnsisvarindex(varnum)) return AllocString();
return AllocStr(g_variables+varnum*g_stringsize);
}
TCHAR *system_setuservariable(int varnum, TCHAR *var)
{
if (var && isvalidnsisvarindex(varnum)) {
lstrcpy(g_variables + varnum*g_stringsize, var);
}
return var;
}
// Updated for int64 and simple bitwise operations
__int64 myatoi64(TCHAR *s)
{
__int64 v=0;
// Check for right input
if (!s) return 0;
if (*s == _T('0') && (s[1] == _T('x') || s[1] == _T('X')))
{
s++;
for (;;)
{
int c=*(++s);
if (c >= _T('0') && c <= _T('9')) c-=_T('0');
else if (c >= _T('a') && c <= _T('f')) c-=_T('a')-10;
else if (c >= _T('A') && c <= _T('F')) c-=_T('A')-10;
else break;
v<<=4;
v+=c;
}
}
else if (*s == _T('0') && s[1] <= _T('7') && s[1] >= _T('0'))
{
for (;;)
{
int c=*(++s);
if (c >= _T('0') && c <= _T('7')) c-=_T('0');
else break;
v<<=3;
v+=c;
}
}
else
{
int sign=0;
if (*s == _T('-')) sign++; else s--;
for (;;)
{
int c=*(++s) - _T('0');
if (c < 0 || c > 9) break;
v*=10;
v+=c;
}
if (sign) v = -v;
}
// Support for simple ORed expressions
if (*s == _T('|'))
{
v |= myatoi64(s+1);
}
return v;
}
void myitoa64(__int64 i, TCHAR *buffer)
{
TCHAR buf[128], *b = buf;
if (i < 0)
{
*(buffer++) = _T('-');
i = -i;
}
if (i == 0) *(buffer++) = _T('0');
else
{
while (i > 0)
{
*(b++) = _T('0') + ((TCHAR) (i%10));
i /= 10;
}
while (b > buf) *(buffer++) = *(--b);
}
*buffer = 0;
}
INT_PTR system_popintptr()
{
INT_PTR value;
TCHAR *str;
if ((str = system_popstring()) == NULL) return -1;
value = StrToIntPtr(str);
GlobalFree(str);
return value;
}
void system_pushintptr(INT_PTR value)
{
TCHAR buffer[50];
wsprintf(buffer, sizeof(void*) > 4 ? _T("%Id") : _T("%d"), value);
system_pushstring(buffer);
}
void *copymem(void *output, void *input, size_t cbSize)
{
BYTE *out = (BYTE*) output;
BYTE *in = (BYTE*) input;
if ((input != NULL) && (output != NULL))
{
while (cbSize-- > 0) *(out++) = *(in++);
}
return output;
}
HANDLE GlobalCopy(HANDLE Old)
{
size_t size = GlobalSize(Old);
return copymem(GlobalAlloc(GPTR, size), Old, size);
}
UINT_PTR NSISCallback(enum NSPIM msg)
{
return 0;
}
#ifdef _DEBUG
void main()
{
}
#endif
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