X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Flocale%2Fsetlocale.c;h=360c4437644b88f86ac8b9f0db5d92915019c8d7;hb=8ef9d46f4d0ff4f0073da6bee7ed0cb5f9035ead;hp=32a8fcab5fde043654ed06a16820f9464bce1981;hpb=63c188ec42e76ff768e81f6b65b11c68fc43351e;p=musl

diff --git a/src/locale/setlocale.c b/src/locale/setlocale.c
index 32a8fcab..360c4437 100644
--- a/src/locale/setlocale.c
+++ b/src/locale/setlocale.c
@@ -3,44 +3,17 @@
 #include <string.h>
 #include "locale_impl.h"
 #include "libc.h"
-#include "atomic.h"
+#include "lock.h"
 
-static char buf[2+4*(LOCALE_NAME_MAX+1)];
-
-static char *setlocale_one_unlocked(int cat, const char *name)
-{
-	struct __locale_map *lm;
-
-	if (name) __setlocalecat(&libc.global_locale, cat, name);
-
-	switch (cat) {
-	case LC_CTYPE:
-		return libc.global_locale.ctype_utf8 ? "C.UTF-8" : "C";
-	case LC_NUMERIC:
-		return "C";
-	case LC_MESSAGES:
-		return libc.global_locale.messages_name[0]
-			? libc.global_locale.messages_name : "C";
-	default:
-		lm = libc.global_locale.cat[cat-2];
-		return lm ? lm->name : "C";
-	}
-}
+static char buf[LC_ALL*(LOCALE_NAME_MAX+1)];
 
 char *setlocale(int cat, const char *name)
 {
-	static volatile int lock[2];
-	struct __locale_map *lm;
-	int i, j;
-
-	if (!libc.global_locale.messages_name) {
-		libc.global_locale.messages_name =
-			buf + 2 + 3*(LOCALE_NAME_MAX+1);
-	}
+	const struct __locale_map *lm;
 
 	if ((unsigned)cat > LC_ALL) return 0;
 
-	LOCK(lock);
+	LOCK(__locale_lock);
 
 	/* For LC_ALL, setlocale is required to return a string which
 	 * encodes the current setting for all categories. The format of
@@ -48,41 +21,58 @@ char *setlocale(int cat, const char *name)
 	 * performs both the serialization and deserialization, depends
 	 * on the format, so it can easily be changed if needed. */
 	if (cat == LC_ALL) {
+		int i;
 		if (name) {
-			char part[LOCALE_NAME_MAX+1];
-			if (name[0] && name[1]==';'
-			    && strlen(name) > 2 + 3*(LOCALE_NAME_MAX+1)) {
-				part[0] = name[0];
-				part[1] = 0;
-				setlocale(LC_CTYPE, part);
-				part[LOCALE_NAME_MAX] = 0;
-				for (i=LC_TIME; i<LC_MESSAGES; i++) {
-					memcpy(part, name + 2 + (i-2)*(LOCALE_NAME_MAX+1), LOCALE_NAME_MAX);
-					for (j=LOCALE_NAME_MAX-1; j && part[j]==';'; j--)
-						part[j] = 0;
-					setlocale_one_unlocked(i, part);
+			struct __locale_struct tmp_locale;
+			char part[LOCALE_NAME_MAX+1] = "C.UTF-8";
+			const char *p = name;
+			for (i=0; i<LC_ALL; i++) {
+				const char *z = __strchrnul(p, ';');
+				if (z-p <= LOCALE_NAME_MAX) {
+					memcpy(part, p, z-p);
+					part[z-p] = 0;
+					if (*z) p = z+1;
+				}
+				lm = __get_locale(i, part);
+				if (lm == LOC_MAP_FAILED) {
+					UNLOCK(__locale_lock);
+					return 0;
 				}
-				setlocale_one_unlocked(LC_MESSAGES, name
-					+ 2 + 3*(LOCALE_NAME_MAX+1));
-			} else {
-				for (i=0; i<LC_ALL; i++)
-					setlocale_one_unlocked(i, name);
+				tmp_locale.cat[i] = lm;
 			}
+			libc.global_locale = tmp_locale;
 		}
-		memset(buf, ';', 2 + 3*(LOCALE_NAME_MAX+1));
-		buf[0] = libc.global_locale.ctype_utf8 ? 'U' : 'C';
-		for (i=LC_TIME; i<LC_MESSAGES; i++) {
-			lm = libc.global_locale.cat[i-2];
-			if (lm) memcpy(buf + 2 + (i-2)*(LOCALE_NAME_MAX+1),
-				lm->name, strlen(lm->name));
+		char *s = buf;
+		const char *part;
+		int same = 0;
+		for (i=0; i<LC_ALL; i++) {
+			const struct __locale_map *lm =
+				libc.global_locale.cat[i];
+			if (lm == libc.global_locale.cat[0]) same++;
+			part = lm ? lm->name : "C";
+			size_t l = strlen(part);
+			memcpy(s, part, l);
+			s[l] = ';';
+			s += l+1;
 		}
-		UNLOCK(lock);
-		return buf;
+		*--s = 0;
+		UNLOCK(__locale_lock);
+		return same==LC_ALL ? (char *)part : buf;
 	}
 
-	char *ret = setlocale_one_unlocked(cat, name);
+	if (name) {
+		lm = __get_locale(cat, name);
+		if (lm == LOC_MAP_FAILED) {
+			UNLOCK(__locale_lock);
+			return 0;
+		}
+		libc.global_locale.cat[cat] = lm;
+	} else {
+		lm = libc.global_locale.cat[cat];
+	}
+	char *ret = lm ? (char *)lm->name : "C";
 
-	UNLOCK(lock);
+	UNLOCK(__locale_lock);
 
 	return ret;
 }