An upcoming patch will alter how simple unions, like SocketAddress,
are laid out, which will impact all lines of the form 'addr->u.XXX'.
To minimize the impact of that patch, use C99 initialization or a
temporary variable to reduce the number of lines needing modification
when an internal reference within SocketAddress changes layout.
Signed-off-by: Eric Blake <ebl...@redhat.com>
Reviewed-by: Daniel P. Berrange <berra...@redhat.com>
---
v2: add R-b
---
block/nbd.c | 14 ++++++++------
qemu-char.c | 43 ++++++++++++++++++++++++------------------
qemu-nbd.c | 9 +++++----
tests/test-io-channel-socket.c | 26 ++++++++++++++++---------
ui/vnc.c | 39 +++++++++++++++++++-------------------
util/qemu-sockets.c | 11 ++++++-----
6 files changed, 81 insertions(+), 61 deletions(-)
diff --git a/block/nbd.c b/block/nbd.c
index db57b49..9f333c9 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -204,18 +204,20 @@ static SocketAddress *nbd_config(BDRVNBDState *s, QDict
*options, char **export,
saddr = g_new0(SocketAddress, 1);
if (qdict_haskey(options, "path")) {
+ UnixSocketAddress *q_unix;
saddr->type = SOCKET_ADDRESS_KIND_UNIX;
- saddr->u.q_unix = g_new0(UnixSocketAddress, 1);
- saddr->u.q_unix->path = g_strdup(qdict_get_str(options, "path"));
+ q_unix = saddr->u.q_unix = g_new0(UnixSocketAddress, 1);
+ q_unix->path = g_strdup(qdict_get_str(options, "path"));
qdict_del(options, "path");
} else {
+ InetSocketAddress *inet;
saddr->type = SOCKET_ADDRESS_KIND_INET;
- saddr->u.inet = g_new0(InetSocketAddress, 1);
- saddr->u.inet->host = g_strdup(qdict_get_str(options, "host"));
+ inet = saddr->u.inet = g_new0(InetSocketAddress, 1);
+ inet->host = g_strdup(qdict_get_str(options, "host"));
if (!qdict_get_try_str(options, "port")) {
- saddr->u.inet->port = g_strdup_printf("%d", NBD_DEFAULT_PORT);
+ inet->port = g_strdup_printf("%d", NBD_DEFAULT_PORT);
} else {
- saddr->u.inet->port = g_strdup(qdict_get_str(options, "port"));
+ inet->port = g_strdup(qdict_get_str(options, "port"));
}
qdict_del(options, "host");
qdict_del(options, "port");
diff --git a/qemu-char.c b/qemu-char.c
index 5ea1d34..cfc82bc 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3659,20 +3659,23 @@ static void qemu_chr_parse_socket(QemuOpts *opts,
ChardevBackend *backend,
addr = g_new0(SocketAddress, 1);
if (path) {
+ UnixSocketAddress *q_unix;
addr->type = SOCKET_ADDRESS_KIND_UNIX;
- addr->u.q_unix = g_new0(UnixSocketAddress, 1);
- addr->u.q_unix->path = g_strdup(path);
+ q_unix = addr->u.q_unix = g_new0(UnixSocketAddress, 1);
+ q_unix->path = g_strdup(path);
} else {
addr->type = SOCKET_ADDRESS_KIND_INET;
addr->u.inet = g_new0(InetSocketAddress, 1);
- addr->u.inet->host = g_strdup(host);
- addr->u.inet->port = g_strdup(port);
- addr->u.inet->has_to = qemu_opt_get(opts, "to");
- addr->u.inet->to = qemu_opt_get_number(opts, "to", 0);
- addr->u.inet->has_ipv4 = qemu_opt_get(opts, "ipv4");
- addr->u.inet->ipv4 = qemu_opt_get_bool(opts, "ipv4", 0);
- addr->u.inet->has_ipv6 = qemu_opt_get(opts, "ipv6");
- addr->u.inet->ipv6 = qemu_opt_get_bool(opts, "ipv6", 0);
+ *addr->u.inet = (InetSocketAddress) {
+ .host = g_strdup(host),
+ .port = g_strdup(port),
+ .has_to = qemu_opt_get(opts, "to"),
+ .to = qemu_opt_get_number(opts, "to", 0),
+ .has_ipv4 = qemu_opt_get(opts, "ipv4"),
+ .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0),
+ .has_ipv6 = qemu_opt_get(opts, "ipv6"),
+ .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
+ };
}
sock->addr = addr;
}
@@ -3712,12 +3715,14 @@ static void qemu_chr_parse_udp(QemuOpts *opts,
ChardevBackend *backend,
addr = g_new0(SocketAddress, 1);
addr->type = SOCKET_ADDRESS_KIND_INET;
addr->u.inet = g_new0(InetSocketAddress, 1);
- addr->u.inet->host = g_strdup(host);
- addr->u.inet->port = g_strdup(port);
- addr->u.inet->has_ipv4 = qemu_opt_get(opts, "ipv4");
- addr->u.inet->ipv4 = qemu_opt_get_bool(opts, "ipv4", 0);
- addr->u.inet->has_ipv6 = qemu_opt_get(opts, "ipv6");
- addr->u.inet->ipv6 = qemu_opt_get_bool(opts, "ipv6", 0);
+ *addr->u.inet = (InetSocketAddress) {
+ .host = g_strdup(host),
+ .port = g_strdup(port),
+ .has_ipv4 = qemu_opt_get(opts, "ipv4"),
+ .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0),
+ .has_ipv6 = qemu_opt_get(opts, "ipv6"),
+ .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
+ };
udp->remote = addr;
if (has_local) {
@@ -3725,8 +3730,10 @@ static void qemu_chr_parse_udp(QemuOpts *opts,
ChardevBackend *backend,
addr = g_new0(SocketAddress, 1);
addr->type = SOCKET_ADDRESS_KIND_INET;
addr->u.inet = g_new0(InetSocketAddress, 1);
- addr->u.inet->host = g_strdup(localaddr);
- addr->u.inet->port = g_strdup(localport);
+ *addr->u.inet = (InetSocketAddress) {
+ .host = g_strdup(localaddr),
+ .port = g_strdup(localport),
+ };
udp->local = addr;
}
}
diff --git a/qemu-nbd.c b/qemu-nbd.c
index 5fe94d0..a5c1d95 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -380,13 +380,14 @@ static SocketAddress *nbd_build_socket_address(const char
*sockpath,
saddr->u.q_unix = g_new0(UnixSocketAddress, 1);
saddr->u.q_unix->path = g_strdup(sockpath);
} else {
+ InetSocketAddress *inet;
saddr->type = SOCKET_ADDRESS_KIND_INET;
- saddr->u.inet = g_new0(InetSocketAddress, 1);
- saddr->u.inet->host = g_strdup(bindto);
+ inet = saddr->u.inet = g_new0(InetSocketAddress, 1);
+ inet->host = g_strdup(bindto);
if (port) {
- saddr->u.inet->port = g_strdup(port);
+ inet->port = g_strdup(port);
} else {
- saddr->u.inet->port = g_strdup_printf("%d", NBD_DEFAULT_PORT);
+ inet->port = g_strdup_printf("%d", NBD_DEFAULT_PORT);
}
}
diff --git a/tests/test-io-channel-socket.c b/tests/test-io-channel-socket.c
index 0697363..afe46d5 100644
--- a/tests/test-io-channel-socket.c
+++ b/tests/test-io-channel-socket.c
@@ -1,7 +1,7 @@
/*
* QEMU I/O channel sockets test
*
- * Copyright (c) 2015 Red Hat, Inc.
+ * Copyright (c) 2015-2016 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ -284,13 +284,17 @@ static void test_io_channel_ipv4(bool async)
listen_addr->type = SOCKET_ADDRESS_KIND_INET;
listen_addr->u.inet = g_new0(InetSocketAddress, 1);
- listen_addr->u.inet->host = g_strdup("127.0.0.1");
- listen_addr->u.inet->port = NULL; /* Auto-select */
+ *listen_addr->u.inet = (InetSocketAddress) {
+ .host = g_strdup("127.0.0.1"),
+ .port = NULL, /* Auto-select */
+ };
connect_addr->type = SOCKET_ADDRESS_KIND_INET;
connect_addr->u.inet = g_new0(InetSocketAddress, 1);
- connect_addr->u.inet->host = g_strdup("127.0.0.1");
- connect_addr->u.inet->port = NULL; /* Filled in later */
+ *connect_addr->u.inet = (InetSocketAddress) {
+ .host = g_strdup("127.0.0.1"),
+ .port = NULL, /* Filled in later */
+ };
test_io_channel(async, listen_addr, connect_addr, false);
@@ -318,13 +322,17 @@ static void test_io_channel_ipv6(bool async)
listen_addr->type = SOCKET_ADDRESS_KIND_INET;
listen_addr->u.inet = g_new0(InetSocketAddress, 1);
- listen_addr->u.inet->host = g_strdup("::1");
- listen_addr->u.inet->port = NULL; /* Auto-select */
+ *listen_addr->u.inet = (InetSocketAddress) {
+ .host = g_strdup("::1"),
+ .port = NULL, /* Auto-select */
+ };
connect_addr->type = SOCKET_ADDRESS_KIND_INET;
connect_addr->u.inet = g_new0(InetSocketAddress, 1);
- connect_addr->u.inet->host = g_strdup("::1");
- connect_addr->u.inet->port = NULL; /* Filled in later */
+ *connect_addr->u.inet = (InetSocketAddress) {
+ .host = g_strdup("::1"),
+ .port = NULL, /* Filled in later */
+ };
test_io_channel(async, listen_addr, connect_addr, false);
diff --git a/ui/vnc.c b/ui/vnc.c
index b6bbea5..b955e4e 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -3530,12 +3530,13 @@ void vnc_display_open(const char *id, Error **errp)
}
} else {
unsigned long long baseport;
+ InetSocketAddress *inet;
saddr->type = SOCKET_ADDRESS_KIND_INET;
- saddr->u.inet = g_new0(InetSocketAddress, 1);
+ inet = saddr->u.inet = g_new0(InetSocketAddress, 1);
if (vnc[0] == '[' && vnc[hlen - 1] == ']') {
- saddr->u.inet->host = g_strndup(vnc + 1, hlen - 2);
+ inet->host = g_strndup(vnc + 1, hlen - 2);
} else {
- saddr->u.inet->host = g_strndup(vnc, hlen);
+ inet->host = g_strndup(vnc, hlen);
}
if (parse_uint_full(h + 1, &baseport, 10) < 0) {
error_setg(errp, "can't convert to a number: %s", h + 1);
@@ -3546,32 +3547,32 @@ void vnc_display_open(const char *id, Error **errp)
error_setg(errp, "port %s out of range", h + 1);
goto fail;
}
- saddr->u.inet->port = g_strdup_printf(
+ inet->port = g_strdup_printf(
"%d", (int)baseport + 5900);
if (to) {
- saddr->u.inet->has_to = true;
- saddr->u.inet->to = to + 5900;
+ inet->has_to = true;
+ inet->to = to + 5900;
}
- saddr->u.inet->ipv4 = ipv4;
- saddr->u.inet->has_ipv4 = has_ipv4;
- saddr->u.inet->ipv6 = ipv6;
- saddr->u.inet->has_ipv6 = has_ipv6;
+ inet->ipv4 = ipv4;
+ inet->has_ipv4 = has_ipv4;
+ inet->ipv6 = ipv6;
+ inet->has_ipv6 = has_ipv6;
if (vs->ws_enabled) {
wsaddr->type = SOCKET_ADDRESS_KIND_INET;
- wsaddr->u.inet = g_new0(InetSocketAddress, 1);
- wsaddr->u.inet->host = g_strdup(saddr->u.inet->host);
- wsaddr->u.inet->port = g_strdup(websocket);
+ inet = wsaddr->u.inet = g_new0(InetSocketAddress, 1);
+ inet->host = g_strdup(saddr->u.inet->host);
+ inet->port = g_strdup(websocket);
if (to) {
- wsaddr->u.inet->has_to = true;
- wsaddr->u.inet->to = to;
+ inet->has_to = true;
+ inet->to = to;
}
- wsaddr->u.inet->ipv4 = ipv4;
- wsaddr->u.inet->has_ipv4 = has_ipv4;
- wsaddr->u.inet->ipv6 = ipv6;
- wsaddr->u.inet->has_ipv6 = has_ipv6;
+ inet->ipv4 = ipv4;
+ inet->has_ipv4 = has_ipv4;
+ inet->ipv6 = ipv6;
+ inet->has_ipv6 = has_ipv6;
}
}
} else {
diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
index 557da20..ad7c00c 100644
--- a/util/qemu-sockets.c
+++ b/util/qemu-sockets.c
@@ -1003,6 +1003,7 @@ socket_sockaddr_to_address_inet(struct sockaddr_storage
*sa,
char host[NI_MAXHOST];
char serv[NI_MAXSERV];
SocketAddress *addr;
+ InetSocketAddress *inet;
int ret;
ret = getnameinfo((struct sockaddr *)sa, salen,
@@ -1017,13 +1018,13 @@ socket_sockaddr_to_address_inet(struct sockaddr_storage
*sa,
addr = g_new0(SocketAddress, 1);
addr->type = SOCKET_ADDRESS_KIND_INET;
- addr->u.inet = g_new0(InetSocketAddress, 1);
- addr->u.inet->host = g_strdup(host);
- addr->u.inet->port = g_strdup(serv);
+ inet = addr->u.inet = g_new0(InetSocketAddress, 1);
+ inet->host = g_strdup(host);
+ inet->port = g_strdup(serv);
if (sa->ss_family == AF_INET) {
- addr->u.inet->has_ipv4 = addr->u.inet->ipv4 = true;
+ inet->has_ipv4 = inet->ipv4 = true;
} else {
- addr->u.inet->has_ipv6 = addr->u.inet->ipv6 = true;
+ inet->has_ipv6 = inet->ipv6 = true;
}
return addr;
--
2.5.0
