From: Mathieu Desnoyers Date: Mon, 26 Sep 2011 18:59:49 +0000 (-0400) Subject: kconsumerd: fix strict aliasing X-Git-Tag: v2.0-pre14~15 X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=26d988bc6ff8b009808219710e7970d7627b8ff6 kconsumerd: fix strict aliasing Signed-off-by: Mathieu Desnoyers --- diff --git a/liblttngkconsumerd/lttngkconsumerd.c b/liblttngkconsumerd/lttngkconsumerd.c index 2e53f9a2d..1893e0ae6 100644 --- a/liblttngkconsumerd/lttngkconsumerd.c +++ b/liblttngkconsumerd/lttngkconsumerd.c @@ -245,12 +245,16 @@ static int kconsumerd_consumerd_recv_fd( enum lttng_kconsumerd_command cmd_type) { struct iovec iov[1]; - int ret = 0, i, tmp2; + int ret = 0, i, j, tmp2; struct cmsghdr *cmsg; int nb_fd; char recv_fd[CMSG_SPACE(sizeof(int))]; struct lttcomm_kconsumerd_msg lkm; struct lttng_kconsumerd_fd *new_fd; + union { + unsigned char vc[4]; + int vi; + } tmp; /* the number of fds we are about to receive */ nb_fd = size / sizeof(struct lttcomm_kconsumerd_msg); @@ -298,10 +302,10 @@ static int kconsumerd_consumerd_recv_fd( if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { switch (cmd_type) { case ADD_STREAM: - DBG("kconsumerd_add_fd %s (%d)", lkm.path_name, - ((int *) CMSG_DATA(cmsg))[0]); - - new_fd = kconsumerd_allocate_fd(&lkm, ((int *) CMSG_DATA(cmsg))[0]); + for (j = 0; j < sizeof(int); j++) + tmp.vc[j] = CMSG_DATA(cmsg)[j]; + DBG("kconsumerd_add_fd %s (%d)", lkm.path_name, tmp.vi); + new_fd = kconsumerd_allocate_fd(&lkm, tmp.vi); if (new_fd == NULL) { lttng_kconsumerd_send_error(ctx, KCONSUMERD_OUTFD_ERROR); goto end;