systemd/1084-udev-ctrl-log-if-setting-SO_PASSCRED-fails.patch

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Based on 4bbdff757ed4e718a3348b93439a03055cc5e3bc Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Thu, 18 Sep 2014 19:26:11 +0200
Subject: [PATCH] udev: ctrl - log if setting SO_PASSCRED fails
No functional change.
Found by Coverity. Fixes CID #1237533.
---
src/udev/udev-ctrl.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- src/udev/udev-ctrl.c
+++ src/udev/udev-ctrl.c 2014-09-19 10:45:55.494236229 +0000
@@ -74,6 +74,7 @@ struct udev_ctrl *udev_ctrl_new_from_fd(
{
struct udev_ctrl *uctrl;
const int on = 1;
+ int r;
uctrl = new0(struct udev_ctrl, 1);
if (uctrl == NULL)
@@ -92,7 +93,9 @@ struct udev_ctrl *udev_ctrl_new_from_fd(
uctrl->bound = true;
uctrl->sock = fd;
}
- setsockopt(uctrl->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+ r = setsockopt(uctrl->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+ if (r < 0)
+ log_warning("could not set SO_PASSCRED: %m");
uctrl->saddr.sun_family = AF_LOCAL;
strscpy(uctrl->saddr.sun_path, sizeof(uctrl->saddr.sun_path), "/run/udev/control");
@@ -209,7 +212,10 @@ struct udev_ctrl_connection *udev_ctrl_g
}
/* enable receiving of the sender credentials in the messages */
- setsockopt(conn->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+ r = setsockopt(conn->sock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on));
+ if (r < 0)
+ log_warning("colud not set SO_PASSCRED: %m");
+
udev_ctrl_ref(uctrl);
return conn;
err: