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[PATCH] transport-helper.c: fix check for size_t < 0 v2

From
Nicolas Kaiser <nikai@nikai.net>
Date
Mar 4, 2011, 23:16 UTC
Message-ID
<20110305001626.3b6c507d@absol.kitzblitz>
In-Reply-To
<AANLkTimc_iLDXxrV=tfZc+_dCkpx6897Lh8sZxkwbgDo@mail.gmail.com>

'bytes' is unsigned of type size_t, and can't be negative. But the assigned write() returns ssize_t, and -1 on error. For testing < 0, 'bytes' needs to be of a signed type.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
---
* Piotr Krukowiecki <piotr.krukowiecki@gmail.com>:
> You are right that, but the fix should be to use ssize_t not  plain "int".
> (udt_do_read() correctly uses ssize_t)

Indeed, thanks. Here's a version with ssize_t. Testsuite did not regress at my place.

 transport-helper.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/transport-helper.c b/transport-helper.c
index 4e4754c..ba06b70 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -973,7 +973,7 @@ static int udt_do_read(struct unidirectional_transfer *t)
  */
 static int udt_do_write(struct unidirectional_transfer *t)
 {
-	size_t bytes;
+	ssize_t bytes;
 
 	if (t->bufuse == 0)
 		return 0;	/* Nothing to write. */
-- 
1.7.3.4
Previous: Piotr Krukowiecki
Message 3 of 3 in “transport-helper.c: fix check for size_t < 0”
  1. transport-helper.c: fix check for size_t < 0Nicolas Kaiser, Mar 4, 2011
  2. Piotr KrukowieckiMar 4, 2011
  3. transport-helper.c: fix check for size_t < 0 v2Nicolas Kaiser, Mar 4, 2011

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