explicitly reject empty names in dynamic linker load_library function

[musl] / src / stdio / vfwprintf.c

diff --git a/src/stdio/vfwprintf.c b/src/stdio/vfwprintf.c
index 984ff7b..c640059 100644 (file)
--- a/src/stdio/vfwprintf.c
+++ b/src/stdio/vfwprintf.c
@@ -355,6 +355,7 @@ int vfwprintf(FILE *restrict f, const wchar_t *restrict fmt, va_list ap)
        }
 
        FLOCK(f);
+       f->mode |= f->mode+1;
        ret = wprintf_core(f, fmt, &ap2, nl_arg, nl_type);
        FUNLOCK(f);
        va_end(ap2);