From: Volker Lendecke <vl@samba.org>
Date: Mon, 22 Dec 2008 21:42:44 +0000 (+0100)
Subject: Add code to test write_data_iov a bit
X-Git-Tag: samba-3.3.0~124
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f1fcb808a56943b7332f888f5cc9cc357c5be66a;p=thirdparty%2Fsamba.git

Add code to test write_data_iov a bit
(cherry picked from commit 8c7552790934397c1bbb7e93eb64716a5fed31fa)
---

diff --git a/source/lib/system.c b/source/lib/system.c
index 5b06d3c7600..48ecf903d94 100644
--- a/source/lib/system.c
+++ b/source/lib/system.c
@@ -149,6 +149,17 @@ ssize_t sys_writev(int fd, const struct iovec *iov, int iovcnt)
 {
 	ssize_t ret;
 
+#if 0
+	/* Try to confuse write_data_iov a bit */
+	if ((random() % 5) == 0) {
+		return sys_write(fd, iov[0].iov_base, iov[0].iov_len);
+	}
+	if (iov[0].iov_len > 1) {
+		return sys_write(fd, iov[0].iov_base,
+				 (random() % (iov[0].iov_len-1)) + 1);
+	}
+#endif
+
 	do {
 		ret = writev(fd, iov, iovcnt);
 	} while (ret == -1 && errno == EINTR);