musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/stdio/ungetwc.c b/src/stdio/ungetwc.c
index d4c7de39..80d6e203 100644
--- a/src/stdio/ungetwc.c
+++ b/src/stdio/ungetwc.c

@@ -1,4 +1,5 @@

#include "stdio_impl.h"

+#include "locale_impl.h"

#include <wchar.h>

#include <limits.h>

#include <ctype.h>

@@ -8,15 +9,18 @@ wint_t ungetwc(wint_t c, FILE *f)

{

unsigned char mbc[MB_LEN_MAX];

int l=1;

+ locale_t *ploc = &CURRENT_LOCALE, loc = *ploc;

FLOCK(f);

if (f->mode <= 0) fwide(f, 1);

+ *ploc = f->locale;

if (!f->rpos) __toread(f);

if (!f->rpos || f->rpos < f->buf - UNGET + l || c == WEOF ||

(!isascii(c) && (l = wctomb((void *)mbc, c)) < 0)) {

FUNLOCK(f);

+ *ploc = loc;

return WEOF;

}

@@ -26,5 +30,6 @@ wint_t ungetwc(wint_t c, FILE *f)

f->flags &= ~F_EOF;

FUNLOCK(f);

+ *ploc = loc;

return c;

}