From 0001910df80de4c429e74908dca68ff1d0232677 Mon Sep 17 00:00:00 2001
From: justin1014 <justin1014@212acab6-be3b-0410-9dea-997c60f758d6>
Date: Sat, 21 Sep 2002 07:05:31 +0000
Subject: [PATCH] more updates yay

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@1109 212acab6-be3b-0410-9dea-997c60f758d6
---
 Source/exehead/Main.c     | 15 +++++----------
 Source/exehead/fileform.c | 12 +++++-------
 Source/exehead/fileform.h |  2 +-
 Source/exehead/lang.h     |  8 ++++++--
 4 files changed, 17 insertions(+), 20 deletions(-)

diff --git a/Source/exehead/Main.c b/Source/exehead/Main.c
index d35858d4..d93bf1ab 100644
--- a/Source/exehead/Main.c
+++ b/Source/exehead/Main.c
@@ -41,11 +41,6 @@ extern unsigned long NSISCALL CRC32(unsigned long crc, const unsigned char *buf,
 #ifdef NSIS_COMPRESS_WHOLE
 extern HANDLE dbd_hFile;
 #endif
-#ifdef NSIS_CONFIG_CRC_SUPPORT
-static const char *g_crcinvalid=_LANG_INVALIDCRC;
-#else
-static const char *g_crcinvalid=_LANG_INVALIDINST;
-#endif
 
 #ifdef NSIS_CONFIG_UNINSTALL_SUPPORT
 static const char *g_errorcopyinginstall=_LANG_UNINSTINITERROR;
@@ -170,7 +165,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInst,LPSTR lpszCmdParam,
     if (l > 512) l=512;
     if (!ReadFile(g_db_hFile,temp,l,&l,NULL))
     {
-      m_Err=g_crcinvalid;
+      m_Err=_LANG_INVALIDCRC;
 #if defined(NSIS_CONFIG_CRC_SUPPORT) && defined(NSIS_CONFIG_VISIBLE_SUPPORT)
       if (hwnd) DestroyWindow(hwnd);
 #endif//NSIS_CONFIG_CRC_SUPPORT
@@ -187,7 +182,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInst,LPSTR lpszCmdParam,
         g_filehdrsize=m_pos;
         if (dbl > left)
         {
-          m_Err=g_crcinvalid;
+          m_Err=_LANG_INVALIDCRC;
           goto end;
         }
 #if defined(NSIS_CONFIG_SILENT_SUPPORT) && defined(NSIS_CONFIG_VISIBLE_SUPPORT)
@@ -252,7 +247,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInst,LPSTR lpszCmdParam,
   if (hwnd) DestroyWindow(hwnd);
 #endif//NSIS_CONFIG_CRC_SUPPORT
 #endif//NSIS_CONFIG_VISIBLE_SUPPORT
-  if (!g_filehdrsize) m_Err=g_crcinvalid;
+  if (!g_filehdrsize) m_Err=_LANG_INVALIDCRC;
   else
   {
 #ifdef NSIS_CONFIG_CRC_SUPPORT
@@ -263,14 +258,14 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInst,LPSTR lpszCmdParam,
       SetFilePointer(g_db_hFile,m_pos,NULL,FILE_BEGIN);
       if (!ReadFile(g_db_hFile,&fcrc,4,&l,NULL) || crc != fcrc)
       {
-        m_Err=g_crcinvalid;
+        m_Err=_LANG_INVALIDCRC;
         goto end;
       }
     }
 #endif//NSIS_CONFIG_CRC_SUPPORT
     SetFilePointer(g_db_hFile,g_filehdrsize,NULL,FILE_BEGIN);
 
-    if (loadHeaders()) m_Err=g_crcinvalid;
+    m_Err=loadHeaders();
   }
   if (m_Err) goto end;
 
diff --git a/Source/exehead/fileform.c b/Source/exehead/fileform.c
index 579bb672..05d6001a 100644
--- a/Source/exehead/fileform.c
+++ b/Source/exehead/fileform.c
@@ -13,7 +13,7 @@
 #include "../bzip2/bzlib.h"
 static int bz2_needreinit;
 #define z_stream bz_stream
-#define inflateInit(x) { if (BZ2_bzDecompressInit(x)<0) return -1; }
+#define inflateInit(x) { if (BZ2_bzDecompressInit(x)<0) return _LANG_INVALIDCRC; }
 #define inflate(x) BZ2_bzDecompress(x)
 #define inflateReset(x) { if (bz2_needreinit) { BZ2_bzDecompressEnd(x); inflateInit(x); } bz2_needreinit=1; }
 #define Z_OK BZ_OK
@@ -49,13 +49,13 @@ int NSISCALL isheader(firstheader *h)
 static z_stream g_inflate_stream;
 #endif
 
-int NSISCALL loadHeaders(void)
+const char * NSISCALL loadHeaders(void)
 {
   DWORD r;
   void *data;
   firstheader h;
 
-  if (!ReadFile(g_db_hFile,(LPVOID)&h,sizeof(h),&r,NULL) || r != sizeof(h) || !isheader(&h)) return -1;
+  if (!ReadFile(g_db_hFile,(LPVOID)&h,sizeof(h),&r,NULL) || r != sizeof(h) || !isheader(&h)) return _LANG_INVALIDCRC;
 
   data=(void*)my_GlobalAlloc(h.length_of_header);
 
@@ -72,8 +72,7 @@ int NSISCALL loadHeaders(void)
     dbd_hFile=CreateFile(fno,GENERIC_WRITE|GENERIC_READ,0,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE,NULL);
     if (dbd_hFile == INVALID_HANDLE_VALUE)
     {
-      my_MessageBox("Error writing temp file",MB_OK);
-      return -1;
+      return _LANG_ERRORWRITINGTEMP;
     }
   }
   dbd_srcpos=SetFilePointer(g_db_hFile,0,NULL,FILE_CURRENT);
@@ -83,9 +82,8 @@ int NSISCALL loadHeaders(void)
 
   if (GetCompressedDataFromDataBlockToMemory(-1,data,h.length_of_header) != h.length_of_header)
   {
-    my_MessageBox(_LANG_CANTOPENSELF,MB_OK);
     GlobalFree((HGLOBAL)data);
-    return -1;
+    return _LANG_INVALIDCRC;
   }
 
 #if !defined(NSIS_COMPRESS_WHOLE) || !defined(NSIS_CONFIG_COMPRESSION_SUPPORT)
diff --git a/Source/exehead/fileform.h b/Source/exehead/fileform.h
index 4885069c..b2cfc759 100644
--- a/Source/exehead/fileform.h
+++ b/Source/exehead/fileform.h
@@ -470,7 +470,7 @@ int NSISCALL isheader(firstheader *h); // returns 0 on not header, length_of_dat
 // returns 0 on success
 // on success, m_header will be set to a pointer that should eventually be GlobalFree()'d.
 // (or m_uninstheader)
-int NSISCALL loadHeaders(void);
+const char * NSISCALL loadHeaders(void);
 
 extern HANDLE g_db_hFile;
 extern int g_quit_flag;
diff --git a/Source/exehead/lang.h b/Source/exehead/lang.h
index dbc7f67e..69ae15d8 100644
--- a/Source/exehead/lang.h
+++ b/Source/exehead/lang.h
@@ -1,14 +1,18 @@
 #ifndef _NSIS_LANG_H_
 #define _NSIS_LANG_H_
 
+
 // generic startup strings (these will never be overridable)
+#ifdef NSIS_CONFIG_CRC_SUPPORT
 #define _LANG_INVALIDCRC "Installer corrupted or incomplete.\r\n\r\n"  \
                         "This could be the result of a failed download or corruption from a virus."  \
                         "\r\n\r\nIf desperate, try the /NCRC command line switch (NOT recommended)"
-
-#define _LANG_INVALIDINST  "Installer corrupted.\r\n\r\n" \
+#else
+#define _LANG_INVALIDCRC  "Installer corrupted.\r\n\r\n" \
                           "This could be the result of an incomplete download"
+#endif
 
+#define _LANG_ERRORWRITINGTEMP "Error writing temp file"
 
 #define _LANG_UNINSTINITERROR "Error launching installer"