X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmultibyte%2Fwcsrtombs.c;h=b5713aeacd84e7c3707926f8916d7ce5636de25a;hb=9432bbd4e880850357fd0a81b429499451eb2084;hp=2582ac2f2d80307560992c46d366f5c86dda9efe;hpb=400c5e5c8307a2ebe44ef1f203f5a15669f20347;p=musl

diff --git a/src/multibyte/wcsrtombs.c b/src/multibyte/wcsrtombs.c
index 2582ac2f..b5713aea 100644
--- a/src/multibyte/wcsrtombs.c
+++ b/src/multibyte/wcsrtombs.c
@@ -1,15 +1,4 @@
-/* 
- * This code was written by Rich Felker in 2010; no copyright is claimed.
- * This code is in the public domain. Attribution is appreciated but
- * unnecessary.
- */
-
-#include <stdlib.h>
-#include <inttypes.h>
 #include <wchar.h>
-#include <errno.h>
-
-#include "internal.h"
 
 size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstate_t *restrict st)
 {
@@ -18,7 +7,7 @@ size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstat
 	size_t N = n, l;
 	if (!s) {
 		for (n=0, ws2=*ws; *ws2; ws2++) {
-			if (*ws2 >= 0x80) {
+			if (*ws2 >= 0x80u) {
 				l = wcrtomb(buf, *ws2, 0);
 				if (!(l+1)) return -1;
 				n += l;
@@ -26,8 +15,13 @@ size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstat
 		}
 		return n;
 	}
-	while (n>=4 && **ws) {
-		if (**ws >= 0x80) {
+	while (n>=4) {
+		if (**ws-1u >= 0x7fu) {
+			if (!**ws) {
+				*s = 0;
+				*ws = 0;
+				return N-n;
+			}
 			l = wcrtomb(s, **ws, 0);
 			if (!(l+1)) return -1;
 			s += l;
@@ -38,8 +32,13 @@ size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstat
 		}
 		(*ws)++;
 	}
-	while (n && **ws) {
-		if (**ws >= 0x80) {
+	while (n) {
+		if (**ws-1u >= 0x7fu) {
+			if (!**ws) {
+				*s = 0;
+				*ws = 0;
+				return N-n;
+			}
 			l = wcrtomb(buf, **ws, 0);
 			if (!(l+1)) return -1;
 			if (l>n) return N-n;
@@ -52,7 +51,5 @@ size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstat
 		}
 		(*ws)++;
 	}
-	if (n) *s = 0;
-	*ws = 0;
-	return N-n;
+	return N;
 }