On Dec 12 14:23, Michael Schaap wrote:
> Corinna Vinschen wrote:
> >Does cygstart use CreateProcess and/or GetCurrentDirectory instead of
> >fork/exec/getcwd?
> >
> >If so, cygstart will have to call cygwin_internal(CW_SYNC_WINENV) before
> >using the native Windows functions.
>
> No, it uses ShellExecute (see "cygstart --reference"). It does indeed
> need to sync the environment, but it does this using its own code.
> (Predates cygwin_internal(CW_SYNC_WINENV); I still need to change
> cygstart some day to use it.)
ShellExecute is the same problem. With 1.7.0 you must use
cygwin_internal(CW_SYNC_WINENV), when calling native Windows functions
which have even vaguely to do with the current directory.
> However, this is unrelated to this problem, things go wrong long before
> that. It appears that cygwin_conv_to_win32_path incorrectly determines
> the current working directory.
>
> It is called as follows:
>
> cygwin_conv_to_win32_path(aPath, winPath);
>
> where aPath == "hello.txt".
>
> The current directory is "/cygdrive/c/user" =~ "c:\user", but
> cygwin_conv_to_win32_path thinks that:
>
> normalize_posix_path: /cygdrive/c/WINDOWS/system32/hello.txt =
> normalize_posix_path (hello.txt)
Hang on. cygwin_conv_to_win32_path does not translate the path into
an absolute path, cygwin_conv_to_full_win32_path does that.
I'm running the following simple testcase(tm):
#include <stdio.h>
#include <sys/cygwin.h>
int
main (int argc, char **argv)
{
char buf[260];
cygwin_conv_to_win32_path (argv[1], buf);
puts (buf);
cygwin_conv_to_full_win32_path (argv[1], buf);
puts (buf);
GetCurrentDirectory (260, buf);
puts (buf);
cygwin_internal (CW_SYNC_WINENV);
GetCurrentDirectory (260, buf);
puts (buf);
return 0;
}
$ pwd
/home/corinna/tests
$ ./cyg_conv_to_w32 hello.txt
hello.txt
C:\home\corinna\tests\hello.txt
C:\WINDOWS\system32
C:\home\corinna\tests
This shows you what happens. This is not a bug, but deliberately
chosen. Use cygwin_internal(CW_SYNC_WINENV), please.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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