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| author | Lennart Poettering <lennart@poettering.net> | 2016-05-05 22:24:36 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2016-05-05 22:24:36 +0200 |
| commit | fc2fffe7706ef269005bf4eef56570346c9ca3da (patch) | |
| tree | 9e89ac76ee15de498d97b0d03ed7d764b61874ce /src/udev/udev-ctrl.c | |
| parent | core: use an AF_UNIX/SOCK_DGRAM socket for cgroup agent notification (diff) | |
| download | systemd-fc2fffe7706ef269005bf4eef56570346c9ca3da.tar.xz systemd-fc2fffe7706ef269005bf4eef56570346c9ca3da.zip | |
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 '')
| -rw-r--r-- | src/udev/udev-ctrl.c | 2 |
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; } |