[PATCH] setup.exe: add autoload and version check for AttachConsole

2009-04-01 Thread Dave Korn

Hi gang,

  AttachConsole (added recently for stdout/stderr handling) doesn't exist on
win2k, having been introduced in xp/2k3, so setup HEAD currently doesn't run
there.

  The attached patch fixes the load-time problem by adding an autoload.  That
won't prevent the run-time crash if the function gets called, of course; so it
also adds a version check before the call.

  Unless anyone shouts, I'll commit it later today; I think this is basically
obvious.  Tested by verifying under GDB that it avoids the SEGV and by seeing
that with the patch the setup.log and setup.log.full files are successfully
generated.

* autoload.c (kernel32):  Add autoload entry for AttachConsole.
* main.cc (set_cout):  Check IsXpOrBetter before trying to use it.
* win32.h (IsXpOrBetter):  New version check macro.

cheers,
  DaveK

Index: autoload.c
===
RCS file: /cvs/cygwin-apps/setup/autoload.c,v
retrieving revision 2.7
diff -p -u -r2.7 autoload.c
--- autoload.c  8 Apr 2008 23:50:54 -   2.7
+++ autoload.c  1 Apr 2009 11:38:26 -
@@ -61,6 +61,8 @@ Auto (advapi32, OpenServiceA, 16);
 Auto (advapi32, QueryServiceStatus, 8);
 Auto (advapi32, StartServiceA, 16);
 
+DLL (kernel32);
+Auto (kernel32, AttachConsole, 4);
 
 typedef struct {
   DllInfo *dll;
Index: main.cc
===
RCS file: /cvs/cygwin-apps/setup/main.cc,v
retrieving revision 2.48
diff -p -u -r2.48 main.cc
--- main.cc 21 Mar 2009 21:00:25 -  2.48
+++ main.cc 1 Apr 2009 11:38:26 -
@@ -85,7 +85,7 @@ set_cout ()
 {
   HANDLE hstdout = GetStdHandle (STD_OUTPUT_HANDLE);
   if (GetFileType (hstdout) == FILE_TYPE_UNKNOWN  GetLastError () != NO_ERROR
-   AttachConsole ((DWORD) -1))
+   IsXpOrBetter ()  AttachConsole ((DWORD) -1))
   {
ofstream *conout = new ofstream (conout$);
cout.rdbuf (conout-rdbuf ());
Index: win32.h
===
RCS file: /cvs/cygwin-apps/setup/win32.h,v
retrieving revision 2.17
diff -p -u -r2.17 win32.h
--- win32.h 20 Aug 2008 10:33:25 -  2.17
+++ win32.h 1 Apr 2009 11:38:27 -
@@ -162,5 +162,8 @@ VersionInfo GetVer ();
 #define IsWindowsNT() (GetVer ().isNT ())
 #define OSMajorVersion() (GetVer ().major ())
 #define OSMinorVersion() (GetVer ().minor ())
+#define IsXpOrBetter()   ((OSMajorVersion ()  5) \
+  || (OSMajorVersion () == 5  OSMinorVersion () = 
1))
+
 
 #endif /* SETUP_WIN32_H */


Re: [PATCH] setup.exe: add autoload and version check for AttachConsole

2009-04-01 Thread Christopher Faylor
On Wed, Apr 01, 2009 at 12:54:53PM +0100, Dave Korn wrote:

Hi gang,

  AttachConsole (added recently for stdout/stderr handling) doesn't exist on
win2k, having been introduced in xp/2k3, so setup HEAD currently doesn't run
there.

  The attached patch fixes the load-time problem by adding an autoload.  That
won't prevent the run-time crash if the function gets called, of course; so it
also adds a version check before the call.

  Unless anyone shouts, I'll commit it later today; I think this is basically
obvious.  Tested by verifying under GDB that it avoids the SEGV and by seeing
that with the patch the setup.log and setup.log.full files are successfully
generated.

   * autoload.c (kernel32):  Add autoload entry for AttachConsole.
   * main.cc (set_cout):  Check IsXpOrBetter before trying to use it.
   * win32.h (IsXpOrBetter):  New version check macro.

Please don't submit this.  I'll fix the problem but not this way.

cgf


Re: [PATCH] setup.exe: add autoload and version check for AttachConsole

2009-04-01 Thread Dave Korn
Christopher Faylor wrote:

 
 Please don't submit this.  I'll fix the problem but not this way.


  Okeydokey, cancelled, NP :)

cheers,
  DaveK