[Bug 42736] New: scanf doesn' t work as expected when using format string contains non-ascii chars

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wine-bugs＠winehq.org

29 Mar 2017 29 Mar '17

6:04 p.m.

https://bugs.winehq.org/show_bug.cgi?id=42736

Bug ID: 42736 Summary: scanf doesn't work as expected when using format string contains non-ascii chars Product: Wine Version: unspecified Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: msvcrt Assignee: wine-bugs@winehq.org Reporter: zhangboyang.id@gmail.com Distribution: ---

Created attachment 57728 --> https://bugs.winehq.org/attachment.cgi?id=57728 working example, should link msvcrt.dll (e.g. use mingw to compile)

(1) assume test.txt has this content

hexdump -C test.txt 00000000 ef bb bf 68 65 6c 6c 6f |...hello| 00000008

// the content is UTF8 BOM + "hello"

(2) fscanf(fp, "\xef\xbb\xbf") doesn't work as expected (using crossover 16.2.0)

char s[1000]; fscanf(fp, "\xef\xbb\xbf"); ///// won't read utf-8 bom as expected fscanf(fp, "%s", s);

/opt/cxoffice/bin/wine test.exe | hexdump -C 00000000 73 3d ef bb bf 68 65 6c 6c 6f 0d 0a |s=...hello..| 0000000c

(3) expected behavior is (under windows) E:\winebug>test2 s=hello

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wine-bugs＠winehq.org

30 Mar 30 Mar

10:33 a.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Zhang Boyang zhangboyang.id@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |zhangboyang.id@gmail.com

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wine-bugs＠winehq.org

10:33 a.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Zhang Boyang zhangboyang.id@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- CC|zhangboyang.id@gmail.com |

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wine-bugs＠winehq.org

10:34 a.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Zhang Boyang zhangboyang.id@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |zhangboyang.id@gmail.com

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wine-bugs＠winehq.org

2 Apr 2 Apr

5:52 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Gijs Vermeulen acescopezz@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |acescopezz@gmail.com

--- Comment #1 from Gijs Vermeulen acescopezz@gmail.com --- Did this commit fix it: https://source.winehq.org/git/wine.git/commit/32bb8d9068ae5282b6b10734579aaa...

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wine-bugs＠winehq.org

3 Apr 3 Apr

8:30 a.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Piotr Caban piotr.caban@gmail.com changed:

--- Comment #2 from Piotr Caban piotr.caban@gmail.com --- The patch fixes attached application. Marking as fixed.

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wine-bugs＠winehq.org

9:20 a.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

--- Comment #3 from Zhang Boyang zhangboyang.id@gmail.com --- Hello, I'm not sure whether directly casting '*format' to 'unsigned char' is appropriate. It seems that the wide-scanf and plain-scanf shares same code. If the code is compiled for wide-scanf, directly casting to 'unsigned char' may introduce new bug, e.g. ((unsigned char) L'\xabcd' == L'\xcd') is true.

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wine-bugs＠winehq.org

9:28 a.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Piotr Caban piotr.caban@gmail.com changed:

--- Comment #4 from Piotr Caban piotr.caban@gmail.com --- You're right. Sorry for that. I'll send a fix.

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wine-bugs＠winehq.org

4 Apr 4 Apr

8:16 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

--- Comment #5 from Gijs Vermeulen acescopezz@gmail.com --- (In reply to Zhang Boyang from comment #3)

...

Hello, I'm not sure whether directly casting '*format' to 'unsigned char' is appropriate. It seems that the wide-scanf and plain-scanf shares same code. If the code is compiled for wide-scanf, directly casting to 'unsigned char' may introduce new bug, e.g. ((unsigned char) L'\xabcd' == L'\xcd') is true.

Should be fixed with: https://source.winehq.org/git/wine.git/commitdiff/e7f9b562b9da5aa1fbe369f9e5... Can you confirm?

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wine-bugs＠winehq.org

5 Apr 5 Apr

1:03 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

--- Comment #6 from Zhang Boyang zhangboyang.id@gmail.com --- Yes, I wrote another testcase, and the test is passed when using latest wine. I can confirm the bug is fixed. Thank you!

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wine-bugs＠winehq.org

1:06 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

--- Comment #7 from Zhang Boyang zhangboyang.id@gmail.com --- Created attachment 57790 --> https://bugs.winehq.org/attachment.cgi?id=57790 another testcase, test both sscanf and swscanf.

latest wine passed this testcase

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wine-bugs＠winehq.org

1:08 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Piotr Caban piotr.caban@gmail.com changed:

--- Comment #8 from Piotr Caban piotr.caban@gmail.com --- Marking as fixed.

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wine-bugs＠winehq.org

13 Apr 13 Apr

6:07 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Alexandre Julliard julliard@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED

--- Comment #9 from Alexandre Julliard julliard@winehq.org --- Closing bugs fixed in 2.6.

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wine-bugs＠winehq.org

5 May 5 May

8:31 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Michael Stefaniuc mstefani@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |2.0.x

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wine-bugs＠winehq.org

20 Jul 20 Jul

5:29 p.m.

New subject: [Bug 42736] scanf doesn' t work as expected when using format string contains non-ascii chars

https://bugs.winehq.org/show_bug.cgi?id=42736

Michael Stefaniuc mstefani@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|2.0.x |---

--- Comment #10 from Michael Stefaniuc mstefani@winehq.org --- Removing the 2.0.x milestone from bugs included in 2.0.2.

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