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From: Anthony PERARD <anthony.perard@citrix.com>
To: xen-devel@lists.xenproject.org
Cc: Anthony PERARD <anthony.perard@citrix.com>,
	Wei Liu <wei.liu2@citrix.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>
Subject: [PATCH v3 09/31] libxl_qmp: Move struct sockaddr_un variable to qmp_open()
Date: Fri, 1 Jun 2018 15:36:58 +0100	[thread overview]
Message-ID: <20180601143720.24637-10-anthony.perard@citrix.com> (raw)
In-Reply-To: <20180601143720.24637-1-anthony.perard@citrix.com>

This variable is only used once, no need to keep it in the handler.

Also fix coding style (remove space after sizeof).
And allow strncpy to use all the space in sun_path.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
---
 tools/libxl/libxl_qmp.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/tools/libxl/libxl_qmp.c b/tools/libxl/libxl_qmp.c
index c71c3cbca4..251840a155 100644
--- a/tools/libxl/libxl_qmp.c
+++ b/tools/libxl/libxl_qmp.c
@@ -105,7 +105,6 @@ typedef struct callback_id_pair {
 } callback_id_pair;
 
 struct libxl__qmp_handler {
-    struct sockaddr_un addr;
     int qmp_fd;
     bool connected;
     time_t timeout;
@@ -436,6 +435,7 @@ static int qmp_open(libxl__qmp_handler *qmp, const char *qmp_socket_path,
 {
     int ret = -1;
     int i = 0;
+    struct sockaddr_un addr;
 
     qmp->qmp_fd = socket(AF_UNIX, SOCK_STREAM, 0);
     if (qmp->qmp_fd < 0) {
@@ -452,18 +452,16 @@ static int qmp_open(libxl__qmp_handler *qmp, const char *qmp_socket_path,
         goto out;
     }
 
-    if (sizeof (qmp->addr.sun_path) <= strlen(qmp_socket_path)) {
+    if (sizeof(addr.sun_path) <= strlen(qmp_socket_path)) {
         ret = -1;
         goto out;
     }
-    memset(&qmp->addr, 0, sizeof (qmp->addr));
-    qmp->addr.sun_family = AF_UNIX;
-    strncpy(qmp->addr.sun_path, qmp_socket_path,
-            sizeof (qmp->addr.sun_path)-1);
+    memset(&addr, 0, sizeof(addr));
+    addr.sun_family = AF_UNIX;
+    strncpy(addr.sun_path, qmp_socket_path, sizeof(addr.sun_path) - 1);
 
     do {
-        ret = connect(qmp->qmp_fd, (struct sockaddr *) &qmp->addr,
-                      sizeof (qmp->addr));
+        ret = connect(qmp->qmp_fd, (struct sockaddr *) &addr, sizeof(addr));
         if (ret == 0)
             break;
         if (errno == ENOENT || errno == ECONNREFUSED) {
-- 
Anthony PERARD


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  parent reply	other threads:[~2018-06-01 14:38 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-01 14:36 [PATCH v3 00/31] libxl: Enable save/restore/migration of a restricted QEMU + libxl__ev_qmp_* Anthony PERARD
2018-06-01 14:36 ` [PATCH v3 01/31] libxl_event: Fix DEBUG prints Anthony PERARD
2018-06-27 14:19   ` Ian Jackson
2018-06-01 14:36 ` [PATCH v3 02/31] libxl_qmp: Documentation of the logic of the QMP client Anthony PERARD
2018-06-27 14:20   ` Ian Jackson
2018-06-01 14:36 ` [PATCH v3 03/31] libxl_qmp: Fix use of DEBUG_RECEIVED Anthony PERARD
2018-06-27 14:20   ` Ian Jackson
2018-06-01 14:36 ` [PATCH v3 04/31] libxl_json: fix build with DEBUG_ANSWER Anthony PERARD
2018-06-27 14:22   ` Ian Jackson
2018-07-17 14:35     ` Anthony PERARD
2018-06-01 14:36 ` [PATCH v3 05/31] libxl_qmp: Move the buffer realloc to the same scope level as read Anthony PERARD
2018-06-27 14:25   ` Ian Jackson
2018-06-01 14:36 ` [PATCH v3 06/31] libxl_qmp: Add a warning to not trust QEMU Anthony PERARD
2018-06-27 14:25   ` Ian Jackson
2018-06-01 14:36 ` [PATCH v3 07/31] libxl_qmp: Learned to send FD through QMP to QEMU Anthony PERARD
2018-06-27 14:26   ` Ian Jackson
2018-06-27 16:50     ` Anthony PERARD
2018-06-28  9:56       ` Ian Jackson
2018-06-01 14:36 ` [PATCH v3 08/31] libxl_qmp: Have QEMU save its state to a file descriptor Anthony PERARD
2018-06-27 14:29   ` Ian Jackson
2018-06-01 14:36 ` Anthony PERARD [this message]
2018-06-27 14:31   ` [PATCH v3 09/31] libxl_qmp: Move struct sockaddr_un variable to qmp_open() Ian Jackson
2018-06-27 16:54     ` Anthony PERARD
2018-06-01 14:36 ` [PATCH v3 10/31] libxl_qmp: Move buffers to the stack of qmp_next Anthony PERARD
2018-06-27 14:32   ` Ian Jackson
2018-06-27 16:58     ` Anthony PERARD
2018-06-28  9:57       ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 11/31] libxl_qmp: Remove unused yajl_ctx form handler Anthony PERARD
2018-06-27 14:32   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 12/31] libxl_json: constify libxl__json_object_to_yajl_gen arguments Anthony PERARD
2018-06-27 14:32   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 13/31] libxl_qmp: Separate QMP message generation from qmp_send_prepare Anthony PERARD
2018-06-27 14:45   ` Ian Jackson
2018-06-27 17:12     ` Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 14/31] libxl_qmp_ev: Introduce libxl__ev_qmp_start() to connect to QMP Anthony PERARD
2018-06-27 15:07   ` Ian Jackson
2018-06-28 11:28     ` Anthony PERARD
2018-06-28 11:44       ` Ian Jackson
2018-06-28 13:01         ` Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 15/31] libxl_qmp_ev: Implement fd callback and read data Anthony PERARD
2018-06-27 15:10   ` Ian Jackson
2018-06-28 11:33     ` Anthony PERARD
2018-06-28 11:37       ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 16/31] libxl_json: Allow partial parsing Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 17/31] libxl_json: Enable yajl_allow_trailing_garbage Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 18/31] libxl_json: libxl__json_object_to_json Anthony PERARD
2018-06-27 15:51   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 19/31] libxl_qmp_ev: Parse JSON input from QMP Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 20/31] libxl_qmp: Introduce libxl__ev_qmp functions Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 21/31] libxl_qmp_ev: Handle write to socket Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 22/31] libxl_qmp: Simplify qmp_response_type() prototype Anthony PERARD
2018-06-27 16:03   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 23/31] libxl_qmp_ev: Handle messages from QEMU Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 24/31] libxl_qmp_ev: Respond to QMP greeting Anthony PERARD
2018-06-27 16:07   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 25/31] libxl_qmp_ev: Disconnect QMP when no more events Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 26/31] libxl_qmp: Disable beautify for QMP generated cmd Anthony PERARD
2018-06-27 16:07   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 27/31] libxl_qmp: Implement libxl__qmp_insert_cdrom_ev Anthony PERARD
2018-06-27 16:10   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 28/31] libxl_disk: Cut libxl_cdrom_insert into step Anthony PERARD
2018-06-01 14:37 ` [PATCH v3 29/31] libxl_disk: Have libxl_cdrom_insert use libxl__ev_qmp Anthony PERARD
2018-06-27 16:12   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 30/31] libxl_dm: Pre-open QMP socket for QEMU Anthony PERARD
2018-06-27 16:14   ` Ian Jackson
2018-06-01 14:37 ` [PATCH v3 31/31] libxl: QEMU startup sync based on QMP Anthony PERARD
2018-06-27 16:16   ` Ian Jackson
2018-07-26 14:59     ` Anthony PERARD
2018-06-01 14:47 ` [PATCH v3 00/31] libxl: Enable save/restore/migration of a restricted QEMU + libxl__ev_qmp_* Anthony PERARD
2018-07-03  9:47 ` [PATCH v3.1] libxl: Design of an async API to issue QMP commands to QEMU Anthony PERARD
2018-07-03 14:48   ` Ian Jackson
2018-07-04 11:11     ` Anthony PERARD
2018-07-12 16:36       ` Ian Jackson
2018-07-16 15:27         ` Anthony PERARD
2018-07-16 15:28           ` [PATCH v3.2] " Anthony PERARD
2018-07-16 16:33             ` Anthony PERARD
2018-07-16 17:04               ` [PATCH v3.2] libxl: Design of an async API to issue QMP commands to QEMU [and 1 more messages] Ian Jackson
2018-07-18 10:30                 ` Anthony PERARD

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