X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Flocale%2Fsetlocale.c;h=360c4437644b88f86ac8b9f0db5d92915019c8d7;hb=d055e6a45a17673b8dd3ec16e786bb2fe1700dd5;hp=28f29b80414618ff81f15e18789e869c03f3f1cf;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/locale/setlocale.c b/src/locale/setlocale.c
index 28f29b80..360c4437 100644
--- a/src/locale/setlocale.c
+++ b/src/locale/setlocale.c
@@ -1,9 +1,78 @@
 #include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include "locale_impl.h"
+#include "libc.h"
+#include "lock.h"
 
-char *setlocale(int category, const char *locale)
+static char buf[LC_ALL*(LOCALE_NAME_MAX+1)];
+
+char *setlocale(int cat, const char *name)
 {
-	/* Note: plain "C" would be better, but puts some broken
-	 * software into legacy 8-bit-codepage mode, ignoring
-	 * the standard library's multibyte encoding */
-	return "C.UTF-8";
+	const struct __locale_map *lm;
+
+	if ((unsigned)cat > LC_ALL) return 0;
+
+	LOCK(__locale_lock);
+
+	/* For LC_ALL, setlocale is required to return a string which
+	 * encodes the current setting for all categories. The format of
+	 * this string is unspecified, and only the following code, which
+	 * 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) {
+			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;
+				}
+				tmp_locale.cat[i] = lm;
+			}
+			libc.global_locale = tmp_locale;
+		}
+		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;
+		}
+		*--s = 0;
+		UNLOCK(__locale_lock);
+		return same==LC_ALL ? (char *)part : buf;
+	}
+
+	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(__locale_lock);
+
+	return ret;
 }