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Fix encoding issue when lc_monetary or lc_numeric are different encoding

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from lc_ctype, that could happen on Windows. We need to change lc_ctype
together with lc_monetary or lc_numeric, and convert strings in lconv
from lc_ctype encoding to the database encoding.

The bug reported by Mikko, original patch by Hiroshi Inoue,
with changes by Bruce and me.
This commit is contained in:
Itagaki Takahiro 2010-04-22 01:55:52 +00:00
parent a6dcd19a2a
commit 95a777c612
1 changed files with 73 additions and 14 deletions
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87
src/backend/utils/adt/pg_locale.c
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@ -4,7 +4,7 @@
*
* Portions Copyright (c) 2002-2010, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/utils/adt/pg_locale.c,v 1.53 2010/02/27 20:20:44 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pg_locale.c,v 1.54 2010/04/22 01:55:52 itagaki Exp $
*
*-----------------------------------------------------------------------
*/
@ -387,6 +387,28 @@ free_struct_lconv(struct lconv * s)
}
/*
* Return a strdup'ed string converted from the specified encoding to the
* database encoding.
*/
static char *
db_encoding_strdup(int encoding, const char *str)
{
char *pstr;
char *mstr;
/* convert the string to the database encoding */
pstr = (char *) pg_do_encoding_conversion(
(unsigned char *) str, strlen(str),
encoding, GetDatabaseEncoding());
mstr = strdup(pstr);
if (pstr != str)
pfree(pstr);
return mstr;
}
/*
* Return the POSIX lconv struct (contains number/money formatting
* information) with locale information for all categories.
@ -398,6 +420,14 @@ PGLC_localeconv(void)
struct lconv *extlconv;
char *save_lc_monetary;
char *save_lc_numeric;
char *decimal_point;
char *grouping;
char *thousands_sep;
int encoding;
#ifdef WIN32
char *save_lc_ctype;
#endif
/* Did we do it already? */
if (CurrentLocaleConvValid)
@ -413,28 +443,48 @@ PGLC_localeconv(void)
if (save_lc_numeric)
save_lc_numeric = pstrdup(save_lc_numeric);
setlocale(LC_MONETARY, locale_monetary);
setlocale(LC_NUMERIC, locale_numeric);
#ifdef WIN32
/* set user's value of ctype locale */
save_lc_ctype = setlocale(LC_CTYPE, NULL);
if (save_lc_ctype)
save_lc_ctype = pstrdup(save_lc_ctype);
#endif
/* Get formatting information */
/* Get formatting information for numeric */
#ifdef WIN32
setlocale(LC_CTYPE, locale_numeric);
#endif
setlocale(LC_NUMERIC, locale_numeric);
extlconv = localeconv();
encoding = pg_get_encoding_from_locale(locale_numeric);
decimal_point = db_encoding_strdup(encoding, extlconv->decimal_point);
thousands_sep = db_encoding_strdup(encoding, extlconv->thousands_sep);
grouping = strdup(extlconv->grouping);
/* Get formatting information for monetary */
#ifdef WIN32
setlocale(LC_CTYPE, locale_monetary);
#endif
setlocale(LC_MONETARY, locale_monetary);
extlconv = localeconv();
encoding = pg_get_encoding_from_locale(locale_monetary);
/*
* Must copy all values since restoring internal settings may overwrite
* localeconv()'s results.
*/
CurrentLocaleConv = *extlconv;
CurrentLocaleConv.currency_symbol = strdup(extlconv->currency_symbol);
CurrentLocaleConv.decimal_point = strdup(extlconv->decimal_point);
CurrentLocaleConv.grouping = strdup(extlconv->grouping);
CurrentLocaleConv.thousands_sep = strdup(extlconv->thousands_sep);
CurrentLocaleConv.int_curr_symbol = strdup(extlconv->int_curr_symbol);
CurrentLocaleConv.mon_decimal_point = strdup(extlconv->mon_decimal_point);
CurrentLocaleConv.decimal_point = decimal_point;
CurrentLocaleConv.grouping = grouping;
CurrentLocaleConv.thousands_sep = thousands_sep;
CurrentLocaleConv.int_curr_symbol = db_encoding_strdup(encoding, extlconv->int_curr_symbol);
CurrentLocaleConv.currency_symbol = db_encoding_strdup(encoding, extlconv->currency_symbol);
CurrentLocaleConv.mon_decimal_point = db_encoding_strdup(encoding, extlconv->mon_decimal_point);
CurrentLocaleConv.mon_grouping = strdup(extlconv->mon_grouping);
CurrentLocaleConv.mon_thousands_sep = strdup(extlconv->mon_thousands_sep);
CurrentLocaleConv.negative_sign = strdup(extlconv->negative_sign);
CurrentLocaleConv.positive_sign = strdup(extlconv->positive_sign);
CurrentLocaleConv.n_sign_posn = extlconv->n_sign_posn;
CurrentLocaleConv.mon_thousands_sep = db_encoding_strdup(encoding, extlconv->mon_thousands_sep);
CurrentLocaleConv.negative_sign = db_encoding_strdup(encoding, extlconv->negative_sign);
CurrentLocaleConv.positive_sign = db_encoding_strdup(encoding, extlconv->positive_sign);
/* Try to restore internal settings */
if (save_lc_monetary)
@ -449,6 +499,15 @@ PGLC_localeconv(void)
pfree(save_lc_numeric);
}
#ifdef WIN32
/* try to restore internal ctype settings */
if (save_lc_ctype)
{
setlocale(LC_CTYPE, save_lc_ctype);
pfree(save_lc_ctype);
}
#endif
CurrentLocaleConvValid = true;
return &CurrentLocaleConv;
}