X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fstdio%2Fvfprintf.c;h=91c6b93abd50d049f8edeaba0aa88187c1d9df6c;hb=bdeb184c3d08ea5017e1570e0f0431e9d7fd02fd;hp=928c8c1618bf82350c2e086e2fe005837a56a92d;hpb=cc3a4466605fe8dfc31f3b75779110ac93055bc1;p=musl

diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index 928c8c16..91c6b93a 100644
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -652,8 +652,9 @@ int vfprintf(FILE *f, const char *fmt, va_list ap)
 	FLOCK(f);
 	if (!f->buf_size) {
 		saved_buf = f->buf;
-		f->buf = internal_buf;
+		f->wpos = f->wbase = f->buf = internal_buf;
 		f->buf_size = sizeof internal_buf;
+		f->wend = internal_buf + sizeof internal_buf;
 	}
 	ret = printf_core(f, fmt, &ap2, nl_arg, nl_type);
 	if (saved_buf) {