make wide scanf %[ respect width

[musl] / src / stdio / vfwscanf.c

diff --git a/src/stdio/vfwscanf.c b/src/stdio/vfwscanf.c
index 92b7fa4..beb8e8f 100644 (file)
--- a/src/stdio/vfwscanf.c
+++ b/src/stdio/vfwscanf.c
@@ -243,7 +243,7 @@ int vfwscanf(FILE *f, const wchar_t *fmt, va_list ap)
 
                        int gotmatch = 0;
 
-                       for (;;) {
+                       while (width) {
                                if ((c=getwc(f))<0) break;
                                if (in_set(p, c) == invert)
                                        break;
@@ -255,9 +255,10 @@ int vfwscanf(FILE *f, const wchar_t *fmt, va_list ap)
                                        if (s) s+=l;
                                }
                                pos++;
+                               width--;
                                gotmatch=1;
                        }
-                       ungetwc(c, f);
+                       if (width) ungetwc(c, f);
 
                        if (!gotmatch) goto match_fail;