X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=liblttkconsumerd%2Fliblttkconsumerd.c;h=f60888a83fc8f5ebc5758155770876973216c01e;hb=17edf6cea62f0ed842a5a9e831c7cc868fa43600;hp=1e86d28d0cc1ea9cf6afecfb22f554b040ebef13;hpb=bb61c89440b5ed49c3b4a7ea0064eb5e4cac486a;p=lttng-tools.git

diff --git a/liblttkconsumerd/liblttkconsumerd.c b/liblttkconsumerd/liblttkconsumerd.c
index 1e86d28d0..f60888a83 100644
--- a/liblttkconsumerd/liblttkconsumerd.c
+++ b/liblttkconsumerd/liblttkconsumerd.c
@@ -28,6 +28,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 #include <urcu/list.h>
+#include <assert.h>
 
 #include "libkernelctl.h"
 #include "liblttkconsumerd.h"
@@ -585,7 +586,6 @@ static int kconsumerd_consumerd_recv_fd(int sfd,
 		struct pollfd *kconsumerd_sockpoll, int size,
 		enum kconsumerd_command cmd_type)
 {
-	struct msghdr msg;
 	struct iovec iov[1];
 	int ret = 0, i, tmp2;
 	struct cmsghdr *cmsg;
@@ -596,8 +596,11 @@ static int kconsumerd_consumerd_recv_fd(int sfd,
 	/* the number of fds we are about to receive */
 	nb_fd = size / sizeof(struct lttcomm_kconsumerd_msg);
 
+	/*
+	 * nb_fd is the number of fds we receive. One fd per recvmsg.
+	 */
 	for (i = 0; i < nb_fd; i++) {
-		memset(&msg, 0, sizeof(msg));
+		struct msghdr msg = { 0 };
 
 		/* Prepare to receive the structures */
 		iov[0].iov_base = &lkm;
@@ -631,12 +634,13 @@ static int kconsumerd_consumerd_recv_fd(int sfd,
 			kconsumerd_send_error(KCONSUMERD_ERROR_RECV_FD);
 			goto end;
 		}
+
 		/* if we received fds */
 		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, (CMSG_DATA(cmsg)[0]));
-				ret = kconsumerd_add_fd(&lkm, (CMSG_DATA(cmsg)[0]));
+				DBG("kconsumerd_add_fd %s (%d)", lkm.path_name, ((int *) CMSG_DATA(cmsg))[0]);
+				ret = kconsumerd_add_fd(&lkm, ((int *) CMSG_DATA(cmsg))[0]);
 				if (ret < 0) {
 					kconsumerd_send_error(KCONSUMERD_OUTFD_ERROR);
 					goto end;