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authorguenther <guenther@openbsd.org>2009-10-22 01:23:16 +0000
committerguenther <guenther@openbsd.org>2009-10-22 01:23:16 +0000
commit7ff09c5c6c97039a5c7f7864c46007f47d652b03 (patch)
tree85241012fd1c4ec9714f130877e15fb5088fd2d7 /lib/libc/stdio/fputc.c
parentAdd delete example since it has come up several times. (diff)
downloadwireguard-openbsd-7ff09c5c6c97039a5c7f7864c46007f47d652b03.tar.xz
wireguard-openbsd-7ff09c5c6c97039a5c7f7864c46007f47d652b03.zip
Back out previous commit, as it caused too much growth for the install
media to fit
Diffstat (limited to 'lib/libc/stdio/fputc.c')
-rw-r--r--lib/libc/stdio/fputc.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/libc/stdio/fputc.c b/lib/libc/stdio/fputc.c
index 275e0398411..0c95ed9a14f 100644
--- a/lib/libc/stdio/fputc.c
+++ b/lib/libc/stdio/fputc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: fputc.c,v 1.8 2009/10/21 16:04:23 guenther Exp $ */
+/* $OpenBSD: fputc.c,v 1.9 2009/10/22 01:23:16 guenther Exp $ */
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
@@ -33,9 +33,14 @@
#include <stdio.h>
#include <errno.h>
+#include "local.h"
int
fputc(int c, FILE *fp)
{
+ if (cantwrite(fp)) {
+ errno = EBADF;
+ return (EOF);
+ }
return (putc(c, fp));
}