[Bug locale/27996] New: setlocale should fail if the required gconv module is missing

[Bug locale/27996] New: setlocale should fail if the required gconv module is missing

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27996

            Bug ID: 27996
           Summary: setlocale should fail if the required gconv module is
                    missing
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: locale
          Assignee: unassigned at sourceware dot org
          Reporter: fweimer at redhat dot com
  Target Milestone: ---

setlocale succeeds:

$ LC_ALL=lv_LV locale
LANG=
LC_CTYPE="lv_LV"
LC_NUMERIC="lv_LV"
LC_TIME="lv_LV"
LC_COLLATE="lv_LV"
LC_MONETARY="lv_LV"
LC_MESSAGES="lv_LV"
LC_PAPER="lv_LV"
LC_NAME="lv_LV"
LC_ADDRESS="lv_LV"
LC_TELEPHONE="lv_LV"
LC_MEASUREMENT="lv_LV"
LC_IDENTIFICATION="lv_LV"
LC_ALL=lv_LV

The locale uses a somewhat unusual charset:

# LC_ALL=lv_LV locale -k charmap
charmap="ISO-8859-13"

But the charset is not installed:

# iconv -f UTF-8 -t ISO-8859-13
iconv: failed to start conversion processing

So mbstowcs fails to work.

Pointed out by Victor Stinner here:
https://bugzilla.redhat.com/show_bug.cgi?id=1973663#c11

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[Bug locale/27996] setlocale should fail if the required gconv module is missing

[victor.stinner at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27996

Victor Stinner <victor.stinner at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |victor.stinner at gmail dot com

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[Bug locale/27996] setlocale should fail if the required gconv module is missing

[carlos at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27996

Carlos O'Donell <carlos at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |carlos at redhat dot com

--- Comment #1 from Carlos O'Donell <carlos at redhat dot com> ---
I agree setlocale should fail in this case.

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[Bug locale/27996] setlocale should fail if the required gconv module is missing

[siddhesh at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27996

Siddhesh Poyarekar <siddhesh at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at sourceware dot org   |siddhesh at sourceware dot org
                 CC|                            |siddhesh at sourceware dot org

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[Bug locale/27996] setlocale should fail if the required gconv module is missing

[siddhesh at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27996

--- Comment #2 from Siddhesh Poyarekar <siddhesh at sourceware dot org> ---
Calling locale that way does not actually call setlocale().  I've got a test
with a patch which does; sending soon.

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[Bug locale/27996] setlocale should fail if the required gconv module is missing

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27996

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-
                 CC|                            |fweimer at redhat dot com

--- Comment #3 from Florian Weimer <fweimer at redhat dot com> ---
It may be prudent to turn ISO-8859-1 and ISO-8859-15 into internal converts,
too, so that we don't encounter additional overhead due to early converter
loading for these (somewhat common) character sets.

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