X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmultibyte%2Fwcrtomb.c;h=ddc37a57b5c4b54dab0887b739c48cde7fe365c5;hb=b98414732d230c236b9a79c709c2b035ca67be12;hp=36180c8f00fa2fa49208ef18e8710c013a2eaba9;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/multibyte/wcrtomb.c b/src/multibyte/wcrtomb.c
index 36180c8f..ddc37a57 100644
--- a/src/multibyte/wcrtomb.c
+++ b/src/multibyte/wcrtomb.c
@@ -5,18 +5,23 @@
  */
 
 #include <stdlib.h>
-#include <inttypes.h>
 #include <wchar.h>
 #include <errno.h>
-
 #include "internal.h"
 
-size_t wcrtomb(char *s, wchar_t wc, mbstate_t *st)
+size_t wcrtomb(char *restrict s, wchar_t wc, mbstate_t *restrict st)
 {
 	if (!s) return 1;
 	if ((unsigned)wc < 0x80) {
 		*s = wc;
 		return 1;
+	} else if (MB_CUR_MAX == 1) {
+		if (!IS_CODEUNIT(wc)) {
+			errno = EILSEQ;
+			return -1;
+		}
+		*s = wc;
+		return 1;
 	} else if ((unsigned)wc < 0x800) {
 		*s++ = 0xc0 | (wc>>6);
 		*s = 0x80 | (wc&0x3f);