Source files to Source directory

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@1513 212acab6-be3b-0410-9dea-997c60f758d6

Contrib/System/Source/Plugin.c

@@ -0,0 +1,173 @@
+#include "stdafx.h"
+#include "Plugin.h"
+#include "Buffers.h"
+#include "System.h"
+
+HWND g_hwndParent;
+int g_stringsize;
+stack_t **g_stacktop;
+char *g_variables;
+
+char *AllocString()
+{
+    return (char*) GlobalAlloc(GPTR,g_stringsize);
+}
+
+char *AllocStr(char *str)
+{
+    return lstrcpy(AllocString(), str);
+}
+
+char* popstring()
+{
+        char *str;
+        stack_t *th;
+
+        if (!g_stacktop || !*g_stacktop) return NULL;
+        th=(*g_stacktop);
+
+        str = AllocString();
+        lstrcpy(str,th->text);
+
+        *g_stacktop = th->next;
+        GlobalFree((HGLOBAL)th);
+        return str;
+}
+
+char *pushstring(char *str)
+{
+        stack_t *th;
+        if (!g_stacktop) return str;
+        th=(stack_t*)GlobalAlloc(GPTR,sizeof(stack_t)+g_stringsize);
+        lstrcpyn(th->text,str,g_stringsize);
+        th->next=*g_stacktop;
+        *g_stacktop=th;
+        return str;
+}
+
+char *getuservariable(int varnum)
+{
+        if (varnum < 0 || varnum >= __INST_LAST) return AllocString();
+        return AllocStr(g_variables+varnum*g_stringsize);
+}
+
+char *setuservariable(int varnum, char *var)
+{
+        if (var != NULL && varnum >= 0 && varnum < __INST_LAST) {
+                lstrcpy (g_variables + varnum*g_stringsize, var);
+        }
+        return var;
+}
+
+// Updated for int64 and simple bitwise operations
+__int64 myatoi(char *s)
+{
+  __int64 v=0;
+  // Check for right input
+  if (!s) return 0;
+  if (*s == '0' && (s[1] == 'x' || s[1] == 'X'))
+  {
+    s++;
+    for (;;)
+    {
+      int c=*(++s);
+      if (c >= '0' && c <= '9') c-='0';
+      else if (c >= 'a' && c <= 'f') c-='a'-10;
+      else if (c >= 'A' && c <= 'F') c-='A'-10;
+      else break;
+      v<<=4;
+      v+=c;
+    }
+  }
+  else if (*s == '0' && s[1] <= '7' && s[1] >= '0')
+  {
+    for (;;)
+    {
+      int c=*(++s);
+      if (c >= '0' && c <= '7') c-='0';
+      else break;
+      v<<=3;
+      v+=c;
+    }
+  }
+  else
+  {
+    int sign=0;
+    if (*s == '-') sign++; else s--;
+    for (;;)
+    {
+      int c=*(++s) - '0';
+      if (c < 0 || c > 9) break;
+      v*=10;
+      v+=c;
+    }
+    if (sign) v = -v;
+  }
+
+  // Support for simple ORed expressions
+  if (*s == '|') 
+  {
+      v |= myatoi(s+1);
+  }
+
+  return v;
+}
+
+void myitoa64(__int64 i, char *buffer)
+{
+    char buf[128], *b = buf;
+
+    if (i < 0)
+    {
+        *(buffer++) = '-';
+        i = -i;
+    }
+    if (i == 0) *(buffer++) = '0';
+    else 
+    {
+        while (i > 0) 
+        {
+            *(b++) = '0' + ((char) (i%10));
+            i /= 10;
+        }
+        while (b > buf) *(buffer++) = *(--b);
+    }
+    *buffer = 0;
+}
+
+int popint()
+{
+    int value;
+	char *str;
+	if ((str = popstring()) == NULL) return -1;
+	value = (int) myatoi(str);
+    GlobalFree(str);
+	return value;
+}
+
+void pushint(int value)
+{
+	char buffer[1024];
+	wsprintf(buffer, "%d", value);
+	pushstring(buffer);
+}
+
+char *copymem(char *output, char *input, int size)
+{
+    char *out = output;
+    if ((input != NULL) && (output != NULL))
+        while (size-- > 0) *(out++) = *(input++);
+    return output;
+}
+
+HANDLE GlobalCopy(HANDLE Old)
+{
+	SIZE_T size = GlobalSize(Old);
+    return copymem(GlobalAlloc(GPTR, size), Old, (int) size);
+}
+
+#ifdef _DEBUG
+void main()
+{
+}
+#endif