--- a/src/locale/dcngettext.c	2017-02-06 14:39:17.860482624 +0000 
+++ b/src/locale/dcngettext.c	2017-02-06 14:39:17.860482624 +0000
@@ -100,7 +100,8 @@
 	size_t map_size;
 	void *volatile plural_rule;
 	volatile int nplurals;
-	char name[];
+	struct binding *binding;
+	struct __locale_map *lm;
 };
 
 static char *dummy_gettextdomain()
@@ -120,58 +122,87 @@
 	struct msgcat *p;
 	struct __locale_struct *loc = CURRENT_LOCALE;
 	const struct __locale_map *lm;
-	const char *dirname, *locname, *catname;
-	size_t dirlen, loclen, catlen, domlen;
+	size_t domlen;
+	struct binding *q;
 
 	if ((unsigned)category >= LC_ALL) goto notrans;
 
 	if (!domainname) domainname = __gettextdomain();
 
 	domlen = strnlen(domainname, NAME_MAX+1);
 	if (domlen > NAME_MAX) goto notrans;
 
-	dirname = gettextdir(domainname, &dirlen);
-	if (!dirname) goto notrans;
+	for (q=bindings; q; q=q->next)
+		if (!strcmp(q->domainname, domainname) && q->active)
+			break;
+	if (!q) goto notrans;
 
 	lm = loc->cat[category];
 	if (!lm) {
 notrans:
 		return (char *) ((n == 1) ? msgid1 : msgid2);
 	}
-	locname = lm->name;
-
-	catname = catnames[category];
-	catlen = catlens[category];
-	loclen = strlen(locname);
-
-	size_t namelen = dirlen+1 + loclen+1 + catlen+1 + domlen+3;
-	char name[namelen+1], *s = name;
-
-	memcpy(s, dirname, dirlen);
-	s[dirlen] = '/';
-	s += dirlen + 1;
-	memcpy(s, locname, loclen);
-	s[loclen] = '/';
-	s += loclen + 1;
-	memcpy(s, catname, catlen);
-	s[catlen] = '/';
-	s += catlen + 1;
-	memcpy(s, domainname, domlen);
-	s[domlen] = '.';
-	s[domlen+1] = 'm';
-	s[domlen+2] = 'o';
-	s[domlen+3] = 0;
 
 	for (p=cats; p; p=p->next)
-		if (!strcmp(p->name, name))
+		if (p->binding == q && p->lm == lm)
 			break;
 
 	if (!p) {
+		const char *dirname, *locname, *catname;
+		size_t dirlen, loclen, catlen;
 		void *old_cats;
 		size_t map_size;
+
+		dirname = q->dirname;
+		locname = lm->name;
+		catname = catnames[category];
+
+		dirlen = q->dirlen;
+		loclen = strlen(locname);
+		catlen = catlens[category];
+
+		size_t namelen = dirlen+1 + loclen+1 + catlen+1 + domlen+3;
+		char name[namelen+1], *s = name;
+		char *str = name;
+
+		memcpy(s, dirname, dirlen);
+		s[dirlen] = '/';
+		s += dirlen + 1;
+		memcpy(s, locname, loclen);
+		s[loclen] = '/';
+		s += loclen + 1;
+skip_loc:
+		memcpy(s, catname, catlen);
+		s[catlen] = '/';
+		s += catlen + 1;
+		memcpy(s, domainname, domlen);
+		s[domlen] = '.';
+		s[domlen+1] = 'm';
+		s[domlen+2] = 'o';
+		s[domlen+3] = 0;
+
 		const void *map = __map_file(name, &map_size);
-		if (!map) goto notrans;
+		if (!map) {
+			if (s = strchr(name+dirlen+1, '@')) {
+ 				*s++ = '/';
+ 				goto skip_loc;;
+ 			}
+ 			if ( str && (s = strchr(name+dirlen+1, '_')) && (s < strchr(name+dirlen+1, '/')) ) {
+ 				if (str = strchr(locname, '@')) {
+ 					loclen += locname - str;
+					memcpy(s, str, loclen);
+					s[loclen] = '/';
+					s += loclen + 1;
+					str = 0;
+ 					goto skip_loc;
+ 				} else {
+					*s++ = '/';
+ 					goto skip_loc;
+ 				}
+ 			}
+			goto notrans;
+		}
 		p = calloc(sizeof *p + namelen + 1, 1);
 		if (!p) {
 			__munmap((void *)map, map_size);
 			goto notrans;
@@ -209,7 +209,6 @@
 		}
 		p->map = map;
 		p->map_size = map_size;
-		memcpy(p->name, name, namelen+1);
 		do {
 			old_cats = cats;
 			p->next = old_cats;
--- a/src/locale/locale_map.c	2017-02-06 14:39:17.797148750 +0000
+++ b/src/locale/locale_map.c	2017-02-06 14:39:17.797148750 +0000
@@ -49,8 +49,8 @@
 	}
 
 	/* Limit name length and forbid leading dot or any slashes. */
-	for (n=0; n<LOCALE_NAME_MAX && val[n] && val[n]!='/'; n++);
-	if (val[0]=='.' || val[n]) val = "C.UTF-8";
+	for (n=0; n<LOCALE_NAME_MAX && val[n] && val[n]!='/' && val[n]!='.'; n++);
+	if (val[0]=='.' || (val[n] && val[n]!='.')) val = "C.UTF-8";
 	int builtin = (val[0]=='C' && !val[1])
 		|| !strcmp(val, "C.UTF-8")
 		|| !strcmp(val, "POSIX");