Next stage of stdio cleanup: Retire __sFILEX and merge the fields back into

__sFILE.  This was supposed to be done in 6.0.  Some notes:
- Where possible I restored the various lines to their pre-__sFILEX state.
- Retire INITEXTRA() and just initialize the wchar bits (orientation and
  mbstate) explicitly instead.  The various places that used INITEXTRA
  didn't need the locking fields or _up initialized.  (Some places needed
  _up to exist and not be off the end of a NULL or garbage pointer, but
  they didn't require it to be initialized to a specific value.)
- For now, stdio.h "knows" that pthread_t is a 'struct pthread *' to
  avoid namespace pollution of including all the pthread types in stdio.h.
  Once we remove all the inlines and make __sFILE private it can go back
  to using pthread_t, etc.
- This does not remove any of the inlines currently and does not change
  any of the public ABI of 'FILE'.

MFC after:	1 month
Reviewed by:	peter

1 files changed, 2 insertions, 3 deletions

diff --git a/lib/libc/stdio/sscanf.c b/lib/libc/stdio/sscanf.c
index a1ee11d35d62..3c792e054ba5 100644
--- a/lib/libc/stdio/sscanf.c
+++ b/lib/libc/stdio/sscanf.c
@@ -59,7 +59,6 @@ sscanf(const char * __restrict str, char const * __restrict fmt, ...)
 {
 	int ret;
 	va_list ap;
-	struct __sFILEX extra;
 	FILE f;
 
 	f._file = -1;
@@ -69,8 +68,8 @@ sscanf(const char * __restrict str, char const * __restrict fmt, ...)
 	f._read = eofread;
 	f._ub._base = NULL;
 	f._lb._base = NULL;
-	f._extra = &extra;
-	INITEXTRA(&f);
+	f._orientation = 0;
+	memset(&f._mbstate, 0, sizeof(mbstate_t));
 	va_start(ap, fmt);
 	ret = __svfscanf(&f, fmt, ap);
 	va_end(ap);