do {
b = c = getc_unlocked(f);
if (c < 0) {
- if (!first) errno = EILSEQ;
+ if (!first) {
+ f->flags |= F_ERR;
+ errno = EILSEQ;
+ }
return WEOF;
}
l = mbrtowc(&wc, (void *)&b, 1, &st);
if (l == -1) {
- if (!first) ungetc(b, f);
+ if (!first) {
+ f->flags |= F_ERR;
+ ungetc(b, f);
+ }
return WEOF;
}
first = 0;