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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/import/importd.c
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/import/importd.c')
-rw-r--r--src/import/importd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/import/importd.c b/src/import/importd.c
index d2a5867a6e..956a82945c 100644
--- a/src/import/importd.c
+++ b/src/import/importd.c
@@ -677,7 +677,7 @@ static int manager_new(Manager **ret) {
(void) mkdir_parents_label(sa.un.sun_path, 0755);
(void) unlink(sa.un.sun_path);
- if (bind(m->notify_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0)
+ if (bind(m->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0)
return -errno;
if (setsockopt(m->notify_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0)