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  1. MariaDB Connector/C
  2. CONC-46

Issue with setlocale

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Fixed
    • None
    • None
    • None
    • None
    • OS: Windows 8 Professional 64-bit
      Locale: Japanese_Japan.932
      Faulting C run-time library function: _vsnprintf

    Description

      In source file my_init.c, there is a call

      setlocale(LC_CTYPE, ""); /* To get right sortorder */

      This will eventually set the locale to system locale. C run-time functions uses this information for validating/comparing parameters. In my understanding this is dangerous thing to do for a UTF-8 client. As UTF-8 doesnt depend on any locale, the passed string might have some character sequence that the string functions consider improper. This is resulting in exception.

      I checked the mariadbclient source and couldn't find any relevent functions which uses strcmp and depends on locale. So I think it is not doing anything the comment says, correct me if I am wrong.

      On a side note I believe MariaDB client shouldn't have set the locale on the whole, it should have rather used the locale enabled versions of string functions for its internal use.

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            georg Georg Richter
            vishal.pr Vishal PR
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              Updated:
              Resolved:

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