1 files changed, 55 insertions, 32 deletions

diff --git a/src/locale/dcngettext.c b/src/locale/dcngettext.c
index b68e24bc..b79b7010 100644
--- a/src/locale/dcngettext.c
+++ b/src/locale/dcngettext.c
@@ -100,7 +100,9 @@ struct msgcat {
 	size_t map_size;
 	void *volatile plural_rule;
 	volatile int nplurals;
-	char name[];
+	struct binding *binding;
+	const struct __locale_map *lm;
+	int cat;
 };
 
 static char *dummy_gettextdomain()
@@ -120,8 +122,8 @@ char *dcngettext(const char *domainname, const char *msgid1, const char *msgid2,
 	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;
 
@@ -130,55 +132,76 @@ char *dcngettext(const char *domainname, const char *msgid1, const char *msgid2,
 	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 && p->cat == category)
 			break;
 
 	if (!p) {
+		const char *dirname, *locname, *catname, *modname, *locp;
+		size_t dirlen, loclen, catlen, modlen, alt_modlen;
 		void *old_cats;
 		size_t map_size;
-		const void *map = __map_file(name, &map_size);
+
+		dirname = q->dirname;
+		locname = lm->name;
+		catname = catnames[category];
+
+		dirlen = q->dirlen;
+		loclen = strlen(locname);
+		catlen = catlens[category];
+
+		/* Logically split @mod suffix from locale name. */
+		modname = memchr(locname, '@', loclen);
+		if (!modname) modname = locname + loclen;
+		alt_modlen = modlen = loclen - (modname-locname);
+		loclen = modname-locname;
+
+		/* Drop .charset identifier; it is not used. */
+		const char *csp = memchr(locname, '.', loclen);
+		if (csp) loclen = csp-locname;
+
+		char name[dirlen+1 + loclen+modlen+1 + catlen+1 + domlen+3 + 1];
+		const void *map;
+
+		for (;;) {
+			snprintf(name, sizeof name, "%s/%.*s%.*s/%s/%s.mo\0",
+				dirname, (int)loclen, locname,
+				(int)alt_modlen, modname, catname, domainname);
+			if (map = __map_file(name, &map_size)) break;
+
+			/* Try dropping @mod, _YY, then both. */
+			if (alt_modlen) {
+				alt_modlen = 0;
+			} else if ((locp = memchr(locname, '_', loclen))) {
+				loclen = locp-locname;
+				alt_modlen = modlen;
+			} else {
+				break;
+			}
+		}
 		if (!map) goto notrans;
-		p = calloc(sizeof *p + namelen + 1, 1);
+
+		p = calloc(sizeof *p, 1);
 		if (!p) {
 			__munmap((void *)map, map_size);
 			goto notrans;
 		}
+		p->cat = category;
+		p->binding = q;
+		p->lm = lm;
 		p->map = map;
 		p->map_size = map_size;
-		memcpy(p->name, name, namelen+1);
 		do {
 			old_cats = cats;
 			p->next = old_cats;