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Diffstat (limited to 'src/stdio/vswprintf.c')
-rw-r--r--src/stdio/vswprintf.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/stdio/vswprintf.c b/src/stdio/vswprintf.c
index 2d9f2002..8e8f80ce 100644
--- a/src/stdio/vswprintf.c
+++ b/src/stdio/vswprintf.c
@@ -10,6 +10,8 @@ static size_t sw_write(FILE *f, const unsigned char *s, size_t l)
size_t l0 = l;
int i = 0;
struct cookie *c = f->cookie;
+ if (s!=f->wbase && sw_write(f, f->wbase, f->wpos-f->wbase)==-1)
+ return -1;
while (c->l && l && (i=mbtowc(c->ws, (void *)s, l))>=0) {
s+=i;
l-=i;
@@ -41,6 +43,6 @@ int vswprintf(wchar_t *s, size_t n, const wchar_t *fmt, va_list ap)
return -1;
}
r = vfwprintf(&f, fmt, ap);
- __oflow(&f);
+ sw_write(&f, 0, 0);
return r>=n ? -1 : r;
}