X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmultibyte%2Fwcsnrtombs.c;h=676932b5dcaa0d93da7fabded9c006dd57e19d90;hb=11ddc314b57196519316103b02acffe10299dad3;hp=7eb05d459ab826fbba890d52796302d799b1b251;hpb=571744447c23f91feb6439948f3a619aca850dfb;p=musl

diff --git a/src/multibyte/wcsnrtombs.c b/src/multibyte/wcsnrtombs.c
index 7eb05d45..676932b5 100644
--- a/src/multibyte/wcsnrtombs.c
+++ b/src/multibyte/wcsnrtombs.c
@@ -1,9 +1,3 @@
-/* 
- * 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 <wchar.h>
 
 size_t wcsnrtombs(char *restrict dst, const wchar_t **restrict wcs, size_t wn, size_t n, mbstate_t *restrict st)
@@ -11,13 +5,14 @@ size_t wcsnrtombs(char *restrict dst, const wchar_t **restrict wcs, size_t wn, s
 	size_t l, cnt=0, n2;
 	char *s, buf[256];
 	const wchar_t *ws = *wcs;
+	const wchar_t *tmp_ws;
 
 	if (!dst) s = buf, n = sizeof buf;
 	else s = dst;
 
 	while ( ws && n && ( (n2=wn)>=n || n2>32 ) ) {
 		if (n2>=n) n2=n;
-		wn -= n2;
+		tmp_ws = ws;
 		l = wcsrtombs(s, &ws, n2, 0);
 		if (!(l+1)) {
 			cnt = l;
@@ -28,6 +23,7 @@ size_t wcsnrtombs(char *restrict dst, const wchar_t **restrict wcs, size_t wn, s
 			s += l;
 			n -= l;
 		}
+		wn = ws ? wn - (ws - tmp_ws) : 0;
 		cnt += l;
 	}
 	if (ws) while (n && wn) {
@@ -40,7 +36,7 @@ size_t wcsnrtombs(char *restrict dst, const wchar_t **restrict wcs, size_t wn, s
 		ws++; wn--;
 		/* safe - this loop runs fewer than sizeof(buf) times */
 		s+=l; n-=l;
-		cnt++;
+		cnt += l;
 	}
 	if (dst) *wcs = ws;
 	return cnt;