[Qemu-devel] [PATCH for-2.4 2/5] chardev/irc: Add sockfd option

[Max Reitz <mreitz@redhat.com>]

IRC being well on the way to deprecate other character devices, it must
be exposed to management tools as well. These often prefer to pass a
socket FD instead of a host and port to connect to, so this patch adds
an appropriate option.

Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 qemu-char.c | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/qemu-char.c b/qemu-char.c
index a68fef3..4507e5f 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3937,19 +3937,26 @@ static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend,
 static void qemu_chr_parse_irc(QemuOpts *opts, ChardevBackend *backend,
                                Error **errp)
 {
-    const char *host, *port, *nick, *channel;
+    const char *host, *port, *nick, *channel, *sockfd;
     SocketAddress *addr;
 
     host    = qemu_opt_get(opts, "host");
     port    = qemu_opt_get(opts, "port") ?: "6667";
+    sockfd  = qemu_opt_get(opts, "sockfd");
     nick    = qemu_opt_get(opts, "nick");
     channel = qemu_opt_get(opts, "channel");
 
-    if (!host || !nick || !channel) {
+    if ((!host && !sockfd) || !nick || !channel) {
         error_setg(errp, "chardev: irc: Missing options");
         return;
     }
 
+    if ((host || port) && sockfd) {
+        error_setg(errp,
+                   "chardev: irc: Both sockfd and host and/or port specified");
+        return;
+    }
+
     if (strlen(nick) > 64 || strlen(channel) > 64) {
         error_setg(errp, "chardev: irc: Nick or channel too long");
         return;
@@ -3958,10 +3965,17 @@ static void qemu_chr_parse_irc(QemuOpts *opts, ChardevBackend *backend,
     backend->irc = g_new0(ChardevIrc, 1);
 
     addr = g_new0(SocketAddress, 1);
-    addr->kind = SOCKET_ADDRESS_KIND_INET;
-    addr->inet = g_new0(InetSocketAddress, 1);
-    addr->inet->host = g_strdup(host);
-    addr->inet->port = g_strdup(port);
+    if (host) {
+        addr->kind = SOCKET_ADDRESS_KIND_INET;
+        addr->inet = g_new0(InetSocketAddress, 1);
+        addr->inet->host = g_strdup(host);
+        addr->inet->port = g_strdup(port);
+    } else {
+        addr->kind = SOCKET_ADDRESS_KIND_FD;
+        addr->fd = g_new(String, 1);
+        addr->fd->str = g_strdup(sockfd);
+    }
+
     backend->irc->addr = addr;
 
     backend->irc->nick = g_strdup(nick);
@@ -4332,6 +4346,9 @@ QemuOptsList qemu_chardev_opts = {
         },{
             .name = "channel",
             .type = QEMU_OPT_STRING,
+        },{
+            .name = "sockfd",
+            .type = QEMU_OPT_STRING,
         },
         { /* end of list */ }
     },
-- 
2.3.4