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digitalmars.D.bugs - [Issue 7537] New: `File.tmpfile` requires administrator rights on Windows

reply d-bugmail puremagic.com writes:
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           Summary: `File.tmpfile` requires administrator rights on
                    Windows
           Product: D
           Version: D2
          Platform: All
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody puremagic.com
        ReportedBy: verylonglogin.reg gmail.com


--- Comment #0 from Denis <verylonglogin.reg gmail.com> 2012-02-18 11:42:44 MSK
---
---
import std.stdio;

void main() {
    File.tmpfile();
}
---
dmd 2.058 compiled version running from non-administrator fails with:
std.exception.ErrnoException Could not create temporary file with tmpfile()
(Permission denied) at std\stdio.d(875)

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next sibling parent d-bugmail puremagic.com writes:
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Vladimir Panteleev <thecybershadow gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |thecybershadow gmail.com


--- Comment #1 from Vladimir Panteleev <thecybershadow gmail.com> 2012-04-05
19:23:30 PDT ---
File.tmpfile is just a simple wrapper around core.stdc.stdio.tmpfile, so the
issue is with the DMC's C standard library.

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SomeDude <lovelydear mailmetrash.com> changed:

           What    |Removed                     |Added
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                 CC|                            |lovelydear mailmetrash.com


--- Comment #2 from SomeDude <lovelydear mailmetrash.com> 2012-04-19 09:01:44
PDT ---
This is not a bug. It works as intended. Should close.

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--- Comment #3 from Vladimir Panteleev <thecybershadow gmail.com> 2012-04-19
09:03:04 PDT ---
What?? How is this not a bug?

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--- Comment #4 from SomeDude <lovelydear mailmetrash.com> 2012-04-19 09:09:13
PDT ---
(In reply to comment #3)

 What?? How is this not a bug?


The OS prevents to create the file, so tmpfile() throws an exception. I don't
see how this can be considered a bug.

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--- Comment #5 from Vladimir Panteleev <thecybershadow gmail.com> 2012-04-19
09:10:28 PDT ---
The filename is chosen by the C runtime, not the operating system. It is a bug
in the DigitalMars C runtime. It probably tries to use the hard-coded
%WINDIR%\Temp directory, instead of the user profile directory or %TEMP%.

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--- Comment #6 from SomeDude <lovelydear mailmetrash.com> 2012-04-19 09:19:52
PDT ---
Oh, I just saw the author of the issue. It's not "random Denis".
Anyway, has a bug report been done in DMC C bugzilla ?
Else this one will stay open forever, I'm affraid.

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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla digitalmars.com


--- Comment #7 from Walter Bright <bugzilla digitalmars.com> 2012-04-19
11:23:55 PDT ---
(In reply to comment #5)

 The filename is chosen by the C runtime, not the operating system. It is a bug
 in the DigitalMars C runtime. It probably tries to use the hard-coded
 %WINDIR%\Temp directory, instead of the user profile directory or %TEMP%.


Actually, it uses stdio.h's _P_tmpdir, which on Windows is "\\". Did I say that
implementation is rather old? I also noticed that Windows 7 does not allow
writing to the root directory. XP allowed it.

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--- Comment #8 from Vladimir Panteleev <thecybershadow gmail.com> 2012-04-19
11:32:02 PDT ---
(In reply to comment #7)

 XP allowed it.


You mean, to administrator users? I don't think regular users can create files
in the drive root on XP either:
http://dump.thecybershadow.net/2d089ee536e35b4a8244f26f36be491c/00000814.png

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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


--- Comment #9 from Walter Bright <bugzilla digitalmars.com> 2012-04-19
12:15:09 PDT ---
I have it fixed in snn.lib now. You can pick it up here:

ftp://ftp.digitalmars.com/dmc.zip

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