From fc2fffe7706ef269005bf4eef56570346c9ca3da Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 5 May 2016 22:24:36 +0200 Subject: 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. --- src/coredump/coredump.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/coredump') diff --git a/src/coredump/coredump.c b/src/coredump/coredump.c index 41fc1993d5..01fdcfa909 100644 --- a/src/coredump/coredump.c +++ b/src/coredump/coredump.c @@ -847,7 +847,7 @@ static int send_iovec(const struct iovec iovec[], size_t n_iovec, int input_fd) if (fd < 0) return log_error_errno(errno, "Failed to create coredump socket: %m"); - if (connect(fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)) < 0) + if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) return log_error_errno(errno, "Failed to connect to coredump service: %m"); for (i = 0; i < n_iovec; i++) { -- cgit v1.2.3-54-g00ecf