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util: Shorten references into SocketAddress 

An upcoming patch will alter how simple unions, like SocketAddress,
are laid out, which will impact all lines of the form 'addr->u.XXX'
(expanding it to the longer 'addr->u.XXX.data').  For better
legibility in that patch, and less need for line wrapping, it's better
to use a temporary variable to reduce the effect of a layout change to
just the variable initializations, rather than every reference within
a SocketAddress.  Also, take advantage of some C99 initialization where
it makes sense (simplifying g_new0() to g_new()).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1457021813-10704-7-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2016-03-03 09:16:48 -07:00 committed by Markus Armbruster
parent f194a1ae53
commit 0399293e5b
6 changed files with 88 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
block/nbd.c
View File

@ -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");

49
qemu-char.c
View File

@ -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 = g_new(InetSocketAddress, 1);
*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;
}
@ -3711,22 +3714,26 @@ 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 = g_new(InetSocketAddress, 1);
*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) {
udp->has_local = true;
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 = g_new(InetSocketAddress, 1);
*addr->u.inet = (InetSocketAddress) {
.host = g_strdup(localaddr),
.port = g_strdup(localport),
};
udp->local = addr;
}
}

9
qemu-nbd.c
View File

@ -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);
}
}

34
tests/test-io-channel-socket.c
View File

@ -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
@ -283,14 +283,18 @@ static void test_io_channel_ipv4(bool async)
SocketAddress *connect_addr = g_new0(SocketAddress, 1);
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 = g_new(InetSocketAddress, 1);
*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 = g_new(InetSocketAddress, 1);
*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);
@ -317,14 +321,18 @@ static void test_io_channel_ipv6(bool async)
SocketAddress *connect_addr = g_new0(SocketAddress, 1);
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 = g_new(InetSocketAddress, 1);
*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 = g_new(InetSocketAddress, 1);
*connect_addr->u.inet = (InetSocketAddress) {
.host = g_strdup("::1"),
.port = NULL, /* Filled in later */
};
test_io_channel(async, listen_addr, connect_addr, false);

39
ui/vnc.c
View File

@ -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 {

11
util/qemu-sockets.c
View File

@ -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;