fix padding string formats to width in wide printf variants
the idiom fprintf(f, "%.*s", n, "") was wrongly used in vfwprintf as a
means of producing n spaces; instead it produces no output. the
correct form is fprintf(f, "%*s", n, ""), using width instead of
precision, since for %s the later is a maximum rather than a minimum.
diff --git a/src/stdio/vfwprintf.c b/src/stdio/vfwprintf.c
index f06d5ae..f9f1ecf 100644
--- a/src/stdio/vfwprintf.c
+++ b/src/stdio/vfwprintf.c
@@ -288,9 +288,9 @@
z = wmemchr(a, 0, p);
if (z) p=z-a;
if (w<p) w=p;
- if (!(fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, "");
+ if (!(fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, "");
out(f, a, p);
- if ((fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, "");
+ if ((fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, "");
l=w;
continue;
case 'm':
@@ -303,14 +303,14 @@
if (i<0) return -1;
p=l;
if (w<p) w=p;
- if (!(fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, "");
+ if (!(fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, "");
bs = arg.p;
while (l--) {
i=mbtowc(&wc, bs, MB_LEN_MAX);
bs+=i;
fputwc(wc, f);
}
- if ((fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, "");
+ if ((fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, "");
l=w;
continue;
}