[src/trunk]: src/lib/libc/stdio vfwprintf: fix error propagation

[yamt <yamt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2b276a82c29f
branches:  trunk
changeset: 326145:2b276a82c29f
user:      yamt <yamt%NetBSD.org@localhost>
date:      Mon Jan 20 14:11:03 2014 +0000

description:
vfwprintf: fix error propagation
PR/47660 (Julio Merino)

diffstat:

 lib/libc/stdio/vfwprintf.c |  9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diffs (30 lines):

diff -r f7f94c9fbddf -r 2b276a82c29f lib/libc/stdio/vfwprintf.c
--- a/lib/libc/stdio/vfwprintf.c        Mon Jan 20 14:05:51 2014 +0000
+++ b/lib/libc/stdio/vfwprintf.c        Mon Jan 20 14:11:03 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vfwprintf.c,v 1.33 2013/09/23 12:41:37 pooka Exp $     */
+/*     $NetBSD: vfwprintf.c,v 1.34 2014/01/20 14:11:03 yamt Exp $      */
 
 /*-
  * Copyright (c) 1990, 1993
@@ -38,7 +38,7 @@
 static char sccsid[] = "@(#)vfprintf.c 8.1 (Berkeley) 6/4/93";
 __FBSDID("$FreeBSD: src/lib/libc/stdio/vfwprintf.c,v 1.27 2007/01/09 00:28:08 imp Exp $");
 #else
-__RCSID("$NetBSD: vfwprintf.c,v 1.33 2013/09/23 12:41:37 pooka Exp $");
+__RCSID("$NetBSD: vfwprintf.c,v 1.34 2014/01/20 14:11:03 yamt Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -712,7 +712,10 @@
 #ifndef NARROW
 #define        PRINT(ptr, len) do {                    \
        for (n3 = 0; n3 < (len); n3++)          \
-               __xfputwc((ptr)[n3], fp, loc);  \
+               if (__xfputwc((ptr)[n3], fp, loc) == END_OF_FILE) { \
+                       fp->_flags |= __SERR;   \
+                       goto error;             \
+               }                               \
 } while (/*CONSTCOND*/0)
 #define FLUSH()
 #else