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_Py_CoerceLegacyLocale() restores LC_CTYPE on fail (GH-9044) (GH-9046)

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bpo-34544: If _Py_CoerceLegacyLocale() fails to coerce the C locale,
restore the LC_CTYPE locale to the its previous value.

(cherry picked from commit 8ea09110d4)
This commit is contained in:
Victor Stinner 2018-09-03 22:17:07 +02:00 • committed by GitHub
parent f4c865eda8
commit 84b0129b5e
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1 changed files with 13 additions and 1 deletions
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14
Python/pylifecycle.c
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@ -475,6 +475,13 @@ void
_Py_CoerceLegacyLocale(const _PyCoreConfig *config)
{
#ifdef PY_COERCE_C_LOCALE
char *oldloc = NULL;
oldloc = _PyMem_RawStrdup(setlocale(LC_CTYPE, NULL));
if (oldloc == NULL) {
return;
}
const char *locale_override = getenv("LC_ALL");
if (locale_override == NULL || *locale_override == '\0') {
/* LC_ALL is also not set (or is set to an empty string) */
@ -496,11 +503,16 @@ defined(HAVE_LANGINFO_H) && defined(CODESET)
#endif
/* Successfully configured locale, so make it the default */
_coerce_default_locale_settings(config, target);
return;
goto done;
}
}
}
/* No C locale warning here, as Py_Initialize will emit one later */
setlocale(LC_CTYPE, oldloc);
done:
PyMem_RawFree(oldloc);
#endif
}