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Diffstat (limited to 'src/stdio/vfwprintf.c')
-rw-r--r--src/stdio/vfwprintf.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/stdio/vfwprintf.c b/src/stdio/vfwprintf.c
index c6400591..ebdff001 100644
--- a/src/stdio/vfwprintf.c
+++ b/src/stdio/vfwprintf.c
@@ -149,7 +149,7 @@ static void pop_arg(union arg *arg, int type, va_list *ap)
static void out(FILE *f, const wchar_t *s, size_t l)
{
- while (l--) fputwc(*s++, f);
+ while (l-- && !(f->flags & F_ERR)) fputwc(*s++, f);
}
static int getint(wchar_t **s) {
@@ -345,6 +345,7 @@ int vfwprintf(FILE *restrict f, const wchar_t *restrict fmt, va_list ap)
va_list ap2;
int nl_type[NL_ARGMAX] = {0};
union arg nl_arg[NL_ARGMAX];
+ int olderr;
int ret;
/* the copy allows passing va_list* even if va_list is an array */
@@ -356,7 +357,11 @@ int vfwprintf(FILE *restrict f, const wchar_t *restrict fmt, va_list ap)
FLOCK(f);
f->mode |= f->mode+1;
+ olderr = f->flags & F_ERR;
+ f->flags &= ~F_ERR;
ret = wprintf_core(f, fmt, &ap2, nl_arg, nl_type);
+ if (f->flags & F_ERR) ret = -1;
+ f->flags |= olderr;
FUNLOCK(f);
va_end(ap2);
return ret;