fix %ls breakage in last printf fix

signedness issue kept %ls with no precision from working at all

diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index d593b33..481436d 100644 (file)
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -599,12 +599,12 @@ static int printf_core(FILE *f, const char *fmt, va_list *ap, union arg *nl_arg,
                        p = -1;
                case 'S':
                        ws = arg.p;
-                       for (i=l=0; i<p && *ws && (l=wctomb(mb, *ws++))>=0 && l<=0U+p-i; i+=l);
+                       for (i=l=0; i<0U+p && *ws && (l=wctomb(mb, *ws++))>=0 && l<=0U+p-i; i+=l);
                        if (l<0) return -1;
                        p = i;
                        pad(f, ' ', w, p, fl);
                        ws = arg.p;
-                       for (i=0; i<p && *ws && i+(l=wctomb(mb, *ws++))<=p; i+=l)
+                       for (i=0; i<0U+p && *ws && i+(l=wctomb(mb, *ws++))<=p; i+=l)
                                out(f, mb, l);
                        pad(f, ' ', w, p, fl^LEFT_ADJ);
                        l = w>p ? w : p;