rcopley@gmail.com wrote:
> I'm cross-posting (or failing that, multiposting) to
> comp.infosystems.www.servers.ms-windows and comp.os.ms-
> windows.programmer.win32, because I don't know whether this is an
> issue with the one, the other, or a mixture of both. I can't cross-
> post it to the Subversion newsgroup, because there isn't one, but if
> this discussion bears fruit I'll summarize it on their wiki.
>
> I have Apache 2.2.11 installed on a stand-alone Windows Vista Ultimate
> SP1 system. I have a CGI perl script which calls "svn.exe".
>
> #!c:/strawberry/perl/bin/perl.exe
> print "Content-type: text/plain;\n\n\n";
> my $status = system "svn --version 2>&1";
> print "svn exited with status $status.";
>
> It works okay at the command line but when called as a CGI script, it
> shows:
> svn: Can't determine the system config path
> svn exited with status 256.
>
> The CGI script also works fine on the Windows XP SP3 systems I've
> tried (Home and Professional Edition).
>
> After looking at the source code for Subversion (see the function
> "svn_config__win_config_path" in "subversion-1.6.1\subversion
> \libsvn_subr\config_win.c"), I've reduced the example to this C++
> program (it's wordy, but it just calls SHGetFolderPath):
>
> #include <iostream>
> #include <ostream>
> #include <windows.h>
> #include <shlobj.h>
> const int SHGFP_TYPE_CURRENT = 0; // Not in my <shlobj.h> for some
> reason
> int main () {
> const int csidl = CSIDL_COMMON_APPDATA;
> char folder [MAX_PATH] = { 0 };
> unsigned result = SHGetFolderPath (0, csidl, (void *) -1,
> SHGFP_TYPE_CURRENT, folder);
> std::cout << "Content-type: text/plain;\n\nReturn value 0x" <<
> std::hex << result
> << ", path " << folder << '\n';
> }
>
> If I run the executable from the command prompt, it prints "Return
> value 0x0, path C:\ProgramData", but if I install the executable as a
> CGI handler and browse to its URL, I see "Return value 0x80070003,
> path ".
>
> This is true no matter whether the command shell is running as a user,
> an administrator, or as NT_AUTHORITY\SYSTEM, and whether I run Apache
> as the default NT_AUTHORITY\SYSTEM, or in a local user account.
>
> Using SHGFP_TYPE_DEFAULT instead of SHGFP_TYPE_CURRENT as suggested in
> the comments in the Subversion source doesn't make a difference
> either.
>
> Most other CSIDL_* known-folder ids do seem to work (I haven't tried
> them all). But which one would be a better fit?
>
> Passing the error code 0x80070003 to the FormatMessage function, it
> appears to mean "The system cannot find the path specified".
>
> Comp.os.ms-windows.programmer.win32 people, do you have any idea what
> are the circumstances under which Vista keeps the location of the
> COMMON_APPDATA folder secret, and for goodness' sake why, and what
> you're supposed to use instead? I'd like to be able to submit a patch
> to the people at Subversion project.
>
> Comp.infosystems.www.servers.ms-windows people, can you help me to
> understand what is unusual about the way a process is launched to
> handle a CGI request, that could lead to this behaviour?

hToken of -1 i for "Default User" which is a template for new user
account, so it's not for the current user nor all users. Try using NULL
instead.

Don't know exactly what's wrong - it should work, but SHGetFolderPath is
considered obsolete in Vista. Try using SHGetKnownFolderPath when only
under Vista or Windows 7.