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authorLennart Poettering <lennart@poettering.net>2016-05-05 22:24:36 +0200
committerLennart Poettering <lennart@poettering.net>2016-05-05 22:24:36 +0200
commitfc2fffe7706ef269005bf4eef56570346c9ca3da (patch)
tree9e89ac76ee15de498d97b0d03ed7d764b61874ce /src/udev
parentd8fdc62037b5b0a9fd603ad5efd6b49f956f86b5 (diff)
tree-wide: introduce new SOCKADDR_UN_LEN() macro, and use it everywhere
The macro determines the right length of a AF_UNIX "struct sockaddr_un" to pass to connect() or bind(). It automatically figures out if the socket refers to an abstract namespace socket, or a socket in the file system, and properly handles the full length of the path field. This macro is not only safer, but also simpler to use, than the usual offsetof() + strlen() logic.
Diffstat (limited to 'src/udev')
-rw-r--r--src/udev/udev-ctrl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/udev/udev-ctrl.c b/src/udev/udev-ctrl.c
index 962de22f43..f68a09d7a8 100644
--- a/src/udev/udev-ctrl.c
+++ b/src/udev/udev-ctrl.c
@@ -105,7 +105,7 @@ struct udev_ctrl *udev_ctrl_new_from_fd(struct udev *udev, int fd) {
uctrl->saddr.un.sun_family = AF_LOCAL;
strscpy(uctrl->saddr.un.sun_path, sizeof(uctrl->saddr.un.sun_path), "/run/udev/control");
- uctrl->addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(uctrl->saddr.un.sun_path);
+ uctrl->addrlen = SOCKADDR_UN_LEN(uctrl->saddr.un);
return uctrl;
}