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[Qemu-devel] [PATCH] tap-linux: report an error for invalid sndbuf
From: |
Amos Kong |
Subject: |
[Qemu-devel] [PATCH] tap-linux: report an error for invalid sndbuf |
Date: |
Sun, 27 Apr 2014 22:09:10 +0800 |
We use default sndbuf (INT_MAX) if user assigns an invalid sndbuf.
This patch just added an error note.
Signed-off-by: Amos Kong <address@hidden>
---
net/tap-linux.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/net/tap-linux.c b/net/tap-linux.c
index 812bf2d..fc0cc0d 100644
--- a/net/tap-linux.c
+++ b/net/tap-linux.c
@@ -130,9 +130,16 @@ int tap_set_sndbuf(int fd, const NetdevTapOptions *tap)
{
int sndbuf;
- sndbuf = !tap->has_sndbuf ? TAP_DEFAULT_SNDBUF :
- tap->sndbuf > INT_MAX ? INT_MAX :
- tap->sndbuf;
+ if (!tap->has_sndbuf) {
+ sndbuf = TAP_DEFAULT_SNDBUF;
+ } else if (tap->sndbuf > INT_MAX) {
+ sndbuf = TAP_DEFAULT_SNDBUF;
+ error_report("given sndbuf isn't an integer, "
+ "or it's larger than INT_MAX(%d). "
+ "use default sndbuf(%d)", INT_MAX, INT_MAX);
+ } else {
+ sndbuf = tap->sndbuf;
+ }
if (!sndbuf) {
sndbuf = INT_MAX;
--
1.9.0
- [Qemu-devel] [PATCH] tap-linux: report an error for invalid sndbuf,
Amos Kong <=