locale: handle day, abday, mon, abmon, am_pm keywords

All of these are defined as mandatory by POSIX.

While here, mark all non-standard ones as FreeBSD-only as
other systems (at least, GNU/Linux and illumos) do not handle
them, so we should not encourage their use.

PR:		237752
Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D21490

8 files changed, 472 insertions, 133 deletions

diff --git a/usr.bin/locale/Makefile b/usr.bin/locale/Makefile
index 81395ec881376..48a5c5562b5d7 100644
--- a/usr.bin/locale/Makefile
+++ b/usr.bin/locale/Makefile
@@ -1,6 +1,12 @@
 # $FreeBSD$
 
+.include <src.opts.mk>
+
 PROG=	locale
 CFLAGS+= -I${SRCTOP}/lib/libc/locale
+LIBADD+= sbuf
+
+HAS_TESTS=
+SUBDIR.${MK_TESTS}+= tests
 
 .include <bsd.prog.mk>
diff --git a/usr.bin/locale/locale.c b/usr.bin/locale/locale.c
index 8f47f8e98228e..0b00269b324f4 100644
--- a/usr.bin/locale/locale.c
+++ b/usr.bin/locale/locale.c
@@ -39,6 +39,7 @@
 
 #include <sys/param.h>
 #include <sys/types.h>
+#include <sys/sbuf.h>
 
 #include <dirent.h>
 #include <err.h>
@@ -59,7 +60,7 @@ void	list_charmaps(void);
 void	list_locales(void);
 const char *lookup_localecat(int);
 char	*kwval_lconv(int);
-int	kwval_lookup(const char *, char **, int *, int *);
+int	kwval_lookup(const char *, char **, int *, int *, int *);
 void	showdetails(const char *);
 void	showkeywordslist(char *substring);
 void	showlocale(void);
@@ -87,140 +88,257 @@ static const struct _lcinfo {
 #define	NLCINFO nitems(lcinfo)
 
 /* ids for values not referenced by nl_langinfo() */
-#define	KW_ZERO			10000
-#define	KW_GROUPING		(KW_ZERO+1)
-#define	KW_INT_CURR_SYMBOL	(KW_ZERO+2)
-#define	KW_CURRENCY_SYMBOL	(KW_ZERO+3)
-#define	KW_MON_DECIMAL_POINT	(KW_ZERO+4)
-#define	KW_MON_THOUSANDS_SEP	(KW_ZERO+5)
-#define	KW_MON_GROUPING		(KW_ZERO+6)
-#define	KW_POSITIVE_SIGN	(KW_ZERO+7)
-#define	KW_NEGATIVE_SIGN	(KW_ZERO+8)
-#define	KW_INT_FRAC_DIGITS	(KW_ZERO+9)
-#define	KW_FRAC_DIGITS		(KW_ZERO+10)
-#define	KW_P_CS_PRECEDES	(KW_ZERO+11)
-#define	KW_P_SEP_BY_SPACE	(KW_ZERO+12)
-#define	KW_N_CS_PRECEDES	(KW_ZERO+13)
-#define	KW_N_SEP_BY_SPACE	(KW_ZERO+14)
-#define	KW_P_SIGN_POSN		(KW_ZERO+15)
-#define	KW_N_SIGN_POSN		(KW_ZERO+16)
-#define	KW_INT_P_CS_PRECEDES	(KW_ZERO+17)
-#define	KW_INT_P_SEP_BY_SPACE	(KW_ZERO+18)
-#define	KW_INT_N_CS_PRECEDES	(KW_ZERO+19)
-#define	KW_INT_N_SEP_BY_SPACE	(KW_ZERO+20)
-#define	KW_INT_P_SIGN_POSN	(KW_ZERO+21)
-#define	KW_INT_N_SIGN_POSN	(KW_ZERO+22)
+enum {
+	KW_GROUPING,
+	KW_INT_CURR_SYMBOL,
+	KW_CURRENCY_SYMBOL,
+	KW_MON_DECIMAL_POINT,
+	KW_MON_THOUSANDS_SEP,
+	KW_MON_GROUPING,
+	KW_POSITIVE_SIGN,
+	KW_NEGATIVE_SIGN,
+	KW_INT_FRAC_DIGITS,
+	KW_FRAC_DIGITS,
+	KW_P_CS_PRECEDES,
+	KW_P_SEP_BY_SPACE,
+	KW_N_CS_PRECEDES,
+	KW_N_SEP_BY_SPACE,
+	KW_P_SIGN_POSN,
+	KW_N_SIGN_POSN,
+	KW_INT_P_CS_PRECEDES,
+	KW_INT_P_SEP_BY_SPACE,
+	KW_INT_N_CS_PRECEDES,
+	KW_INT_N_SEP_BY_SPACE,
+	KW_INT_P_SIGN_POSN,
+	KW_INT_N_SIGN_POSN,
+	KW_TIME_DAY,
+	KW_TIME_ABDAY,
+	KW_TIME_MON,
+	KW_TIME_ABMON,
+	KW_TIME_AM_PM
+};
+
+enum {
+	SRC_LINFO,
+	SRC_LCONV,
+	SRC_LTIME
+};
 
 static const struct _kwinfo {
 	const char	*name;
 	int		isstr;		/* true - string, false - number */
 	int		catid;		/* LC_* */
+	int		source;
 	int		value_ref;
 	const char	*comment;
 } kwinfo [] = {
-	{ "charmap",		1, LC_CTYPE,	CODESET, "" },	/* hack */
-
-	{ "decimal_point",	1, LC_NUMERIC,	RADIXCHAR, "" },
-	{ "thousands_sep",	1, LC_NUMERIC,	THOUSEP, "" },
-	{ "grouping",		1, LC_NUMERIC,	KW_GROUPING, "" },
-	{ "radixchar",		1, LC_NUMERIC,	RADIXCHAR,
-	  "Same as decimal_point (FreeBSD only)" },		/* compat */
-	{ "thousep",		1, LC_NUMERIC,	THOUSEP,
-	  "Same as thousands_sep (FreeBSD only)" },		/* compat */
-
-	{ "int_curr_symbol",	1, LC_MONETARY,	KW_INT_CURR_SYMBOL, "" },
-	{ "currency_symbol",	1, LC_MONETARY,	KW_CURRENCY_SYMBOL, "" },
-	{ "mon_decimal_point",	1, LC_MONETARY,	KW_MON_DECIMAL_POINT, "" },
-	{ "mon_thousands_sep",	1, LC_MONETARY,	KW_MON_THOUSANDS_SEP, "" },
-	{ "mon_grouping",	1, LC_MONETARY,	KW_MON_GROUPING, "" },
-	{ "positive_sign",	1, LC_MONETARY,	KW_POSITIVE_SIGN, "" },
-	{ "negative_sign",	1, LC_MONETARY,	KW_NEGATIVE_SIGN, "" },
-
-	{ "int_frac_digits",	0, LC_MONETARY,	KW_INT_FRAC_DIGITS, "" },
-	{ "frac_digits",	0, LC_MONETARY,	KW_FRAC_DIGITS, "" },
-	{ "p_cs_precedes",	0, LC_MONETARY,	KW_P_CS_PRECEDES, "" },
-	{ "p_sep_by_space",	0, LC_MONETARY,	KW_P_SEP_BY_SPACE, "" },
-	{ "n_cs_precedes",	0, LC_MONETARY,	KW_N_CS_PRECEDES, "" },
-	{ "n_sep_by_space",	0, LC_MONETARY,	KW_N_SEP_BY_SPACE, "" },
-	{ "p_sign_posn",	0, LC_MONETARY,	KW_P_SIGN_POSN, "" },
-	{ "n_sign_posn",	0, LC_MONETARY,	KW_N_SIGN_POSN, "" },
-	{ "int_p_cs_precedes",	0, LC_MONETARY,	KW_INT_P_CS_PRECEDES, "" },
-	{ "int_p_sep_by_space",	0, LC_MONETARY,	KW_INT_P_SEP_BY_SPACE, "" },
-	{ "int_n_cs_precedes",	0, LC_MONETARY,	KW_INT_N_CS_PRECEDES, "" },
-	{ "int_n_sep_by_space",	0, LC_MONETARY,	KW_INT_N_SEP_BY_SPACE, "" },
-	{ "int_p_sign_posn",	0, LC_MONETARY,	KW_INT_P_SIGN_POSN, "" },
-	{ "int_n_sign_posn",	0, LC_MONETARY,	KW_INT_N_SIGN_POSN, "" },
-
-	{ "d_t_fmt",		1, LC_TIME,	D_T_FMT, "" },
-	{ "d_fmt",		1, LC_TIME,	D_FMT, "" },
-	{ "t_fmt",		1, LC_TIME,	T_FMT, "" },
-	{ "am_str",		1, LC_TIME,	AM_STR, "" },
-	{ "pm_str",		1, LC_TIME,	PM_STR, "" },
-	{ "t_fmt_ampm",		1, LC_TIME,	T_FMT_AMPM, "" },
-	{ "day_1",		1, LC_TIME,	DAY_1, "" },
-	{ "day_2",		1, LC_TIME,	DAY_2, "" },
-	{ "day_3",		1, LC_TIME,	DAY_3, "" },
-	{ "day_4",		1, LC_TIME,	DAY_4, "" },
-	{ "day_5",		1, LC_TIME,	DAY_5, "" },
-	{ "day_6",		1, LC_TIME,	DAY_6, "" },
-	{ "day_7",		1, LC_TIME,	DAY_7, "" },
-	{ "abday_1",		1, LC_TIME,	ABDAY_1, "" },
-	{ "abday_2",		1, LC_TIME,	ABDAY_2, "" },
-	{ "abday_3",		1, LC_TIME,	ABDAY_3, "" },
-	{ "abday_4",		1, LC_TIME,	ABDAY_4, "" },
-	{ "abday_5",		1, LC_TIME,	ABDAY_5, "" },
-	{ "abday_6",		1, LC_TIME,	ABDAY_6, "" },
-	{ "abday_7",		1, LC_TIME,	ABDAY_7, "" },
-	{ "mon_1",		1, LC_TIME,	MON_1, "" },
-	{ "mon_2",		1, LC_TIME,	MON_2, "" },
-	{ "mon_3",		1, LC_TIME,	MON_3, "" },
-	{ "mon_4",		1, LC_TIME,	MON_4, "" },
-	{ "mon_5",		1, LC_TIME,	MON_5, "" },
-	{ "mon_6",		1, LC_TIME,	MON_6, "" },
-	{ "mon_7",		1, LC_TIME,	MON_7, "" },
-	{ "mon_8",		1, LC_TIME,	MON_8, "" },
-	{ "mon_9",		1, LC_TIME,	MON_9, "" },
-	{ "mon_10",		1, LC_TIME,	MON_10, "" },
-	{ "mon_11",		1, LC_TIME,	MON_11, "" },
-	{ "mon_12",		1, LC_TIME,	MON_12, "" },
-	{ "abmon_1",		1, LC_TIME,	ABMON_1, "" },
-	{ "abmon_2",		1, LC_TIME,	ABMON_2, "" },
-	{ "abmon_3",		1, LC_TIME,	ABMON_3, "" },
-	{ "abmon_4",		1, LC_TIME,	ABMON_4, "" },
-	{ "abmon_5",		1, LC_TIME,	ABMON_5, "" },
-	{ "abmon_6",		1, LC_TIME,	ABMON_6, "" },
-	{ "abmon_7",		1, LC_TIME,	ABMON_7, "" },
-	{ "abmon_8",		1, LC_TIME,	ABMON_8, "" },
-	{ "abmon_9",		1, LC_TIME,	ABMON_9, "" },
-	{ "abmon_10",		1, LC_TIME,	ABMON_10, "" },
-	{ "abmon_11",		1, LC_TIME,	ABMON_11, "" },
-	{ "abmon_12",		1, LC_TIME,	ABMON_12, "" },
-	{ "altmon_1",		1, LC_TIME,	ALTMON_1, "(FreeBSD only)" },
-	{ "altmon_2",		1, LC_TIME,	ALTMON_2, "(FreeBSD only)" },
-	{ "altmon_3",		1, LC_TIME,	ALTMON_3, "(FreeBSD only)" },
-	{ "altmon_4",		1, LC_TIME,	ALTMON_4, "(FreeBSD only)" },
-	{ "altmon_5",		1, LC_TIME,	ALTMON_5, "(FreeBSD only)" },
-	{ "altmon_6",		1, LC_TIME,	ALTMON_6, "(FreeBSD only)" },
-	{ "altmon_7",		1, LC_TIME,	ALTMON_7, "(FreeBSD only)" },
-	{ "altmon_8",		1, LC_TIME,	ALTMON_8, "(FreeBSD only)" },
-	{ "altmon_9",		1, LC_TIME,	ALTMON_9, "(FreeBSD only)" },
-	{ "altmon_10",		1, LC_TIME,	ALTMON_10, "(FreeBSD only)" },
-	{ "altmon_11",		1, LC_TIME,	ALTMON_11, "(FreeBSD only)" },
-	{ "altmon_12",		1, LC_TIME,	ALTMON_12, "(FreeBSD only)" },
-	{ "era",		1, LC_TIME,	ERA, "(unavailable)" },
-	{ "era_d_fmt",		1, LC_TIME,	ERA_D_FMT, "(unavailable)" },
-	{ "era_d_t_fmt",	1, LC_TIME,	ERA_D_T_FMT, "(unavailable)" },
-	{ "era_t_fmt",		1, LC_TIME,	ERA_T_FMT, "(unavailable)" },
-	{ "alt_digits",		1, LC_TIME,	ALT_DIGITS, "" },
-	{ "d_md_order",		1, LC_TIME,	D_MD_ORDER,
-	  "(FreeBSD only)"				},	/* local */
-
-	{ "yesexpr",		1, LC_MESSAGES, YESEXPR, "" },
-	{ "noexpr",		1, LC_MESSAGES, NOEXPR, "" },
-	{ "yesstr",		1, LC_MESSAGES, YESSTR,
-	  "(POSIX legacy)" },					/* compat */
-	{ "nostr",		1, LC_MESSAGES, NOSTR,
-	  "(POSIX legacy)" }					/* compat */
+	{ "charmap",		1, LC_CTYPE,	SRC_LINFO,
+	  CODESET, "" },					/* hack */
+
+	/* LC_MONETARY - POSIX */
+	{ "int_curr_symbol",	1, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_CURR_SYMBOL, "" },
+	{ "currency_symbol",	1, LC_MONETARY,	SRC_LCONV,
+	  KW_CURRENCY_SYMBOL, "" },
+	{ "mon_decimal_point",	1, LC_MONETARY,	SRC_LCONV,
+	  KW_MON_DECIMAL_POINT, "" },
+	{ "mon_thousands_sep",	1, LC_MONETARY,	SRC_LCONV,
+	  KW_MON_THOUSANDS_SEP, "" },
+	{ "mon_grouping",	1, LC_MONETARY,	SRC_LCONV,
+	  KW_MON_GROUPING, "" },
+	{ "positive_sign",	1, LC_MONETARY,	SRC_LCONV,
+	  KW_POSITIVE_SIGN, "" },
+	{ "negative_sign",	1, LC_MONETARY,	SRC_LCONV,
+	  KW_NEGATIVE_SIGN, "" },
+	{ "int_frac_digits",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_FRAC_DIGITS, "" },
+	{ "frac_digits",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_FRAC_DIGITS, "" },
+	{ "p_cs_precedes",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_P_CS_PRECEDES, "" },
+	{ "p_sep_by_space",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_P_SEP_BY_SPACE, "" },
+	{ "n_cs_precedes",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_N_CS_PRECEDES, "" },
+	{ "n_sep_by_space",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_N_SEP_BY_SPACE, "" },
+	{ "p_sign_posn",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_P_SIGN_POSN, "" },
+	{ "n_sign_posn",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_N_SIGN_POSN, "" },
+	{ "int_p_cs_precedes",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_P_CS_PRECEDES, "" },
+	{ "int_p_sep_by_space",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_P_SEP_BY_SPACE, "" },
+	{ "int_n_cs_precedes",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_N_CS_PRECEDES, "" },
+	{ "int_n_sep_by_space",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_N_SEP_BY_SPACE, "" },
+	{ "int_p_sign_posn",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_P_SIGN_POSN, "" },
+	{ "int_n_sign_posn",	0, LC_MONETARY,	SRC_LCONV,
+	  KW_INT_N_SIGN_POSN, "" },
+
+	/* LC_NUMERIC - POSIX */
+	{ "decimal_point",	1, LC_NUMERIC,	SRC_LINFO,
+	  RADIXCHAR, "" },
+	{ "thousands_sep",	1, LC_NUMERIC,	SRC_LINFO,
+	  THOUSEP, "" },
+	{ "grouping",		1, LC_NUMERIC,	SRC_LCONV,
+	  KW_GROUPING, "" },
+	/* LC_NUMERIC - local additions */
+	{ "radixchar",		1, LC_NUMERIC,	SRC_LINFO,
+	  RADIXCHAR, "Same as decimal_point (FreeBSD only)" },	/* compat */
+	{ "thousep",		1, LC_NUMERIC,	SRC_LINFO,
+	  THOUSEP, "Same as thousands_sep (FreeBSD only)" },	/* compat */
+
+	/* LC_TIME - POSIX */
+	{ "abday",		1, LC_TIME,	SRC_LTIME,
+	  KW_TIME_ABDAY, "" },
+	{ "day",		1, LC_TIME,	SRC_LTIME,
+	  KW_TIME_DAY, "" },
+	{ "abmon",		1, LC_TIME,	SRC_LTIME,
+	  KW_TIME_ABMON, "" },
+	{ "mon",		1, LC_TIME,	SRC_LTIME,
+	  KW_TIME_MON, "" },
+	{ "d_t_fmt",		1, LC_TIME,	SRC_LINFO,
+	  D_T_FMT, "" },
+	{ "d_fmt",		1, LC_TIME,	SRC_LINFO,
+	  D_FMT, "" },
+	{ "t_fmt",		1, LC_TIME,	SRC_LINFO,
+	  T_FMT, "" },
+	{ "am_pm",		1, LC_TIME,	SRC_LTIME,
+	  KW_TIME_AM_PM, "" },
+	{ "t_fmt_ampm",		1, LC_TIME,	SRC_LINFO,
+	  T_FMT_AMPM, "" },
+	{ "era",		1, LC_TIME,	SRC_LINFO,
+	  ERA, "(unavailable)" },
+	{ "era_d_fmt",		1, LC_TIME,	SRC_LINFO,
+	  ERA_D_FMT, "(unavailable)" },
+	{ "era_d_t_fmt",	1, LC_TIME,	SRC_LINFO,
+	  ERA_D_T_FMT, "(unavailable)" },
+	{ "era_t_fmt",		1, LC_TIME,	SRC_LINFO,
+	  ERA_T_FMT, "(unavailable)" },
+	{ "alt_digits",		1, LC_TIME,	SRC_LINFO,
+	  ALT_DIGITS, "" },
+	/* LC_TIME - local additions */
+	{ "abday_1",		1, LC_TIME,	SRC_LINFO,
+	  ABDAY_1, "(FreeBSD only)" },
+	{ "abday_2",		1, LC_TIME,	SRC_LINFO,
+	  ABDAY_2, "(FreeBSD only)" },
+	{ "abday_3",		1, LC_TIME,	SRC_LINFO,
+	  ABDAY_3, "(FreeBSD only)" },
+	{ "abday_4",		1, LC_TIME,	SRC_LINFO,
+	  ABDAY_4, "(FreeBSD only)" },
+	{ "abday_5",		1, LC_TIME,	SRC_LINFO,
+	  ABDAY_5, "(FreeBSD only)" },
+	{ "abday_6",		1, LC_TIME,	SRC_LINFO,
+	  ABDAY_6, "(FreeBSD only)" },
+	{ "abday_7",		1, LC_TIME,	SRC_LINFO,
+	  ABDAY_7, "(FreeBSD only)" },
+	{ "day_1",		1, LC_TIME,	SRC_LINFO,
+	  DAY_1, "(FreeBSD only)" },
+	{ "day_2",		1, LC_TIME,	SRC_LINFO,
+	  DAY_2, "(FreeBSD only)" },
+	{ "day_3",		1, LC_TIME,	SRC_LINFO,
+	  DAY_3, "(FreeBSD only)" },
+	{ "day_4",		1, LC_TIME,	SRC_LINFO,
+	  DAY_4, "(FreeBSD only)" },
+	{ "day_5",		1, LC_TIME,	SRC_LINFO,
+	  DAY_5, "(FreeBSD only)" },
+	{ "day_6",		1, LC_TIME,	SRC_LINFO,
+	  DAY_6, "(FreeBSD only)" },
+	{ "day_7",		1, LC_TIME,	SRC_LINFO,
+	  DAY_7, "(FreeBSD only)" },
+	{ "abmon_1",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_1, "(FreeBSD only)" },
+	{ "abmon_2",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_2, "(FreeBSD only)" },
+	{ "abmon_3",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_3, "(FreeBSD only)" },
+	{ "abmon_4",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_4, "(FreeBSD only)" },
+	{ "abmon_5",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_5, "(FreeBSD only)" },
+	{ "abmon_6",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_6, "(FreeBSD only)" },
+	{ "abmon_7",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_7, "(FreeBSD only)" },
+	{ "abmon_8",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_8, "(FreeBSD only)" },
+	{ "abmon_9",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_9, "(FreeBSD only)" },
+	{ "abmon_10",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_10, "(FreeBSD only)" },
+	{ "abmon_11",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_11, "(FreeBSD only)" },
+	{ "abmon_12",		1, LC_TIME,	SRC_LINFO,
+	  ABMON_12, "(FreeBSD only)" },
+	{ "mon_1",		1, LC_TIME,	SRC_LINFO,
+	  MON_1, "(FreeBSD only)" },
+	{ "mon_2",		1, LC_TIME,	SRC_LINFO,
+	  MON_2, "(FreeBSD only)" },
+	{ "mon_3",		1, LC_TIME,	SRC_LINFO,
+	  MON_3, "(FreeBSD only)" },
+	{ "mon_4",		1, LC_TIME,	SRC_LINFO,
+	  MON_4, "(FreeBSD only)" },
+	{ "mon_5",		1, LC_TIME,	SRC_LINFO,
+	  MON_5, "(FreeBSD only)" },
+	{ "mon_6",		1, LC_TIME,	SRC_LINFO,
+	  MON_6, "(FreeBSD only)" },
+	{ "mon_7",		1, LC_TIME,	SRC_LINFO,
+	  MON_7, "(FreeBSD only)" },
+	{ "mon_8",		1, LC_TIME,	SRC_LINFO,
+	  MON_8, "(FreeBSD only)" },
+	{ "mon_9",		1, LC_TIME,	SRC_LINFO,
+	  MON_9, "(FreeBSD only)" },
+	{ "mon_10",		1, LC_TIME,	SRC_LINFO,
+	  MON_10, "(FreeBSD only)" },
+	{ "mon_11",		1, LC_TIME,	SRC_LINFO,
+	  MON_11, "(FreeBSD only)" },
+	{ "mon_12",		1, LC_TIME,	SRC_LINFO,
+	  MON_12, "(FreeBSD only)" },
+	{ "altmon_1",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_1, "(FreeBSD only)" },
+	{ "altmon_2",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_2, "(FreeBSD only)" },
+	{ "altmon_3",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_3, "(FreeBSD only)" },
+	{ "altmon_4",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_4, "(FreeBSD only)" },
+	{ "altmon_5",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_5, "(FreeBSD only)" },
+	{ "altmon_6",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_6, "(FreeBSD only)" },
+	{ "altmon_7",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_7, "(FreeBSD only)" },
+	{ "altmon_8",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_8, "(FreeBSD only)" },
+	{ "altmon_9",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_9, "(FreeBSD only)" },
+	{ "altmon_10",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_10, "(FreeBSD only)" },
+	{ "altmon_11",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_11, "(FreeBSD only)" },
+	{ "altmon_12",		1, LC_TIME,	SRC_LINFO,
+	  ALTMON_12, "(FreeBSD only)" },
+	{ "am_str",		1, LC_TIME,	SRC_LINFO,
+	  AM_STR, "(FreeBSD only)" },
+	{ "pm_str",		1, LC_TIME,	SRC_LINFO,
+	  PM_STR, "(FreeBSD only)" },
+	{ "d_md_order",		1, LC_TIME,	SRC_LINFO,
+	  D_MD_ORDER, "(FreeBSD only)" },			/* local */
+
+	/* LC_MESSAGES - POSIX */
+	{ "yesexpr",		1, LC_MESSAGES, SRC_LINFO,
+	  YESEXPR, "" },
+	{ "noexpr",		1, LC_MESSAGES, SRC_LINFO,
+	  NOEXPR, "" },
+	/* LC_MESSAGES - local additions */
+	{ "yesstr",		1, LC_MESSAGES, SRC_LINFO,
+	  YESSTR, "(POSIX legacy)" },				/* compat */
+	{ "nostr",		1, LC_MESSAGES, SRC_LINFO,
+	  NOSTR, "(POSIX legacy)" }				/* compat */
 
 };
 #define	NKWINFO (nitems(kwinfo))
@@ -522,7 +640,7 @@ format_grouping(const char *binary)
 }
 
 /*
- * keyword value lookup helper (via localeconv())
+ * keyword value lookup helper for values accessible via localeconv()
  */
 char *
 kwval_lconv(int id)
@@ -606,24 +724,86 @@ kwval_lconv(int id)
 }
 
 /*
+ * keyword value lookup helper for LC_TIME keywords not accessible
+ * via nl_langinfo() or localeconv()
+ */
+static char *
+kwval_ltime(int id)
+{
+	char *rval;
+	struct sbuf *kwsbuf;
+	nl_item i, s_item, e_item;
+
+	switch (id) {
+	case KW_TIME_DAY:
+		s_item = DAY_1;
+		e_item = DAY_7;
+		break;
+	case KW_TIME_ABDAY:
+		s_item = ABDAY_1;
+		e_item = ABDAY_7;
+		break;
+	case KW_TIME_MON:
+		s_item = MON_1;
+		e_item = MON_12;
+		break;
+	case KW_TIME_ABMON:
+		s_item = ABMON_1;
+		e_item = ABMON_12;
+		break;
+	case KW_TIME_AM_PM:
+		if (asprintf(&rval, "%s\";\"%s",
+		    nl_langinfo(AM_STR),
+		    nl_langinfo(PM_STR)) == -1)
+			err(1, "asprintf");
+		return (rval);
+	}
+
+	kwsbuf = sbuf_new_auto();
+	if (kwsbuf == NULL)
+		err(1, "sbuf");
+	for (i = s_item; i <= e_item; i++) {
+		if (i != s_item)
+			(void) sbuf_cat(kwsbuf, "\"");
+		(void) sbuf_cat(kwsbuf, nl_langinfo(i));
+		if (i != e_item)
+			(void) sbuf_cat(kwsbuf, "\";");
+	}
+	(void) sbuf_finish(kwsbuf);
+	rval = strdup(sbuf_data(kwsbuf));
+	if (rval == NULL)
+		err(1, "strdup");
+	sbuf_delete(kwsbuf);
+	return (rval);
+}
+
+/*
  * keyword value and properties lookup
  */
 int
-kwval_lookup(const char *kwname, char **kwval, int *cat, int *isstr)
+kwval_lookup(const char *kwname, char **kwval, int *cat, int *isstr, int *alloc)
 {
 	int	rval;
 	size_t	i;
 
 	rval = 0;
+	*alloc = 0;
 	for (i = 0; i < NKWINFO; i++) {
 		if (strcasecmp(kwname, kwinfo[i].name) == 0) {
 			rval = 1;
 			*cat = kwinfo[i].catid;
 			*isstr = kwinfo[i].isstr;
-			if (kwinfo[i].value_ref < KW_ZERO) {
+			switch (kwinfo[i].source) {
+			case SRC_LINFO:
 				*kwval = nl_langinfo(kwinfo[i].value_ref);
-			} else {
+				break;
+			case SRC_LCONV:
 				*kwval = kwval_lconv(kwinfo[i].value_ref);
+				break;
+			case SRC_LTIME:
+				*kwval = kwval_ltime(kwinfo[i].value_ref);
+				*alloc = 1;
+				break;
 			}
 			break;
 		}
@@ -639,10 +819,10 @@ kwval_lookup(const char *kwname, char **kwval, int *cat, int *isstr)
 void
 showdetails(const char *kw)
 {
-	int	isstr, cat, tmpval;
+	int	isstr, cat, tmpval, alloc;
 	char	*kwval;
 
-	if (kwval_lookup(kw, &kwval, &cat, &isstr) == 0) {
+	if (kwval_lookup(kw, &kwval, &cat, &isstr, &alloc) == 0) {
 		/*
 		 * invalid keyword specified.
 		 * XXX: any actions?
@@ -675,6 +855,9 @@ showdetails(const char *kw)
 			printf("%d\n", tmpval);
 		}
 	}
+
+	if (alloc)
+		free(kwval);
 }
 
 /*
diff --git a/usr.bin/locale/tests/Makefile b/usr.bin/locale/tests/Makefile
new file mode 100644
index 0000000000000..841ef0fd8326d
--- /dev/null
+++ b/usr.bin/locale/tests/Makefile
@@ -0,0 +1,12 @@
+# $FreeBSD$
+
+PACKAGE=	tests
+
+ATF_TESTS_SH=	locale_test
+
+${PACKAGE}FILES+=	k_flag_posix_monetary.out
+${PACKAGE}FILES+=	k_flag_posix_numeric.out
+${PACKAGE}FILES+=	k_flag_posix_time.out
+${PACKAGE}FILES+=	k_flag_posix_messages.out
+
+.include <bsd.test.mk>
diff --git a/usr.bin/locale/tests/k_flag_posix_messages.out b/usr.bin/locale/tests/k_flag_posix_messages.out
new file mode 100644
index 0000000000000..7765f69f799b0
--- /dev/null
+++ b/usr.bin/locale/tests/k_flag_posix_messages.out
@@ -0,0 +1,2 @@
+yesexpr="^[yY]"
+noexpr="^[nN]"
diff --git a/usr.bin/locale/tests/k_flag_posix_monetary.out b/usr.bin/locale/tests/k_flag_posix_monetary.out
new file mode 100644
index 0000000000000..73668c9a696b5
--- /dev/null
+++ b/usr.bin/locale/tests/k_flag_posix_monetary.out
@@ -0,0 +1,21 @@
+int_curr_symbol=""
+currency_symbol=""
+mon_decimal_point=""
+mon_thousands_sep=""
+mon_grouping="127"
+positive_sign=""
+negative_sign=""
+int_frac_digits=127
+frac_digits=127
+p_cs_precedes=127
+p_sep_by_space=127
+n_cs_precedes=127
+n_sep_by_space=127
+p_sign_posn=127
+n_sign_posn=127
+int_p_cs_precedes=127
+int_n_cs_precedes=127
+int_p_sep_by_space=127
+int_n_sep_by_space=127
+int_p_sign_posn=127
+int_n_sign_posn=127
diff --git a/usr.bin/locale/tests/k_flag_posix_numeric.out b/usr.bin/locale/tests/k_flag_posix_numeric.out
new file mode 100644
index 0000000000000..f4434a7fe95d4
--- /dev/null
+++ b/usr.bin/locale/tests/k_flag_posix_numeric.out
@@ -0,0 +1,3 @@
+decimal_point="."
+thousands_sep=""
+grouping="127"
diff --git a/usr.bin/locale/tests/k_flag_posix_time.out b/usr.bin/locale/tests/k_flag_posix_time.out
new file mode 100644
index 0000000000000..cdebcf2122457
--- /dev/null
+++ b/usr.bin/locale/tests/k_flag_posix_time.out
@@ -0,0 +1,14 @@
+abday="Sun";"Mon";"Tue";"Wed";"Thu";"Fri";"Sat"
+day="Sunday";"Monday";"Tuesday";"Wednesday";"Thursday";"Friday";"Saturday"
+abmon="Jan";"Feb";"Mar";"Apr";"May";"Jun";"Jul";"Aug";"Sep";"Oct";"Nov";"Dec"
+mon="January";"February";"March";"April";"May";"June";"July";"August";"September";"October";"November";"December"
+d_t_fmt="%a %b %e %H:%M:%S %Y"
+d_fmt="%m/%d/%y"
+t_fmt="%H:%M:%S"
+am_pm="AM";"PM"
+t_fmt_ampm="%I:%M:%S %p"
+era=""
+era_d_fmt=""
+era_t_fmt=""
+era_d_t_fmt=""
+alt_digits=""
diff --git a/usr.bin/locale/tests/locale_test.sh b/usr.bin/locale/tests/locale_test.sh
new file mode 100755
index 0000000000000..eba6582013826
--- /dev/null
+++ b/usr.bin/locale/tests/locale_test.sh
@@ -0,0 +1,98 @@
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright 2019 Yuri Pankov
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+
+atf_test_case k_flag_posix
+k_flag_posix_head()
+{
+	atf_set "descr" "Verify -k handles all POSIX specified keywords"
+}
+k_flag_posix_body()
+{
+	export LC_ALL="C"
+
+	# LC_MONETARY
+	atf_check -o file:"$(atf_get_srcdir)/k_flag_posix_monetary.out" \
+	    locale -k \
+	    int_curr_symbol \
+	    currency_symbol \
+	    mon_decimal_point \
+	    mon_thousands_sep \
+	    mon_grouping \
+	    positive_sign \
+	    negative_sign \
+	    int_frac_digits \
+	    frac_digits \
+	    p_cs_precedes \
+	    p_sep_by_space \
+	    n_cs_precedes \
+	    n_sep_by_space \
+	    p_sign_posn \
+	    n_sign_posn \
+	    int_p_cs_precedes \
+	    int_n_cs_precedes \
+	    int_p_sep_by_space \
+	    int_n_sep_by_space \
+	    int_p_sign_posn \
+	    int_n_sign_posn
+
+	# LC_NUMERIC
+	atf_check -o file:"$(atf_get_srcdir)/k_flag_posix_numeric.out" \
+	    locale -k \
+	    decimal_point \
+	    thousands_sep \
+	    grouping
+
+	# LC_TIME
+	atf_check -o file:"$(atf_get_srcdir)/k_flag_posix_time.out" \
+	    locale -k \
+	    abday \
+	    day \
+	    abmon \
+	    mon \
+	    d_t_fmt \
+	    d_fmt \
+	    t_fmt \
+	    am_pm \
+	    t_fmt_ampm \
+	    era \
+	    era_d_fmt \
+	    era_t_fmt \
+	    era_d_t_fmt \
+	    alt_digits
+
+	# LC_MESSAGES
+	atf_check -o file:"$(atf_get_srcdir)/k_flag_posix_messages.out" \
+	    locale -k \
+	    yesexpr \
+	    noexpr
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case k_flag_posix
+}