[libvirt] [PATCH v1 1/3] migration: add migration_host support for Ipv6 address without brackets

[Chen Fan]

when specifying migration_host to an Ipv6 address without brackets,
it was resolved to an incorrect address, such as:
   tcp:2001:0DB8::1428:4444,
but the correct address should be:
   tcp:[2001:0DB8::1428]:4444
so we should add brackets when parsing it.

Signed-off-by: Chen Fan <chen.fan.fnst at cn.fujitsu.com>
---
 src/qemu/qemu_migration.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index e4b664b..c7eb305 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -2850,11 +2850,22 @@ qemuMigrationPrepareDirect(virQEMUDriverPtr driver,
             goto cleanup;
 
         if (migrateHost != NULL) {
-            if (virSocketAddrIsNumeric(migrateHost) &&
-                virSocketAddrParse(NULL, migrateHost, AF_UNSPEC) < 0)
-                goto cleanup;
+            virSocketAddr migrateHostSocket;
+            bool migrateHostisIpv6Address = false;
+
+            if (virSocketAddrIsNumeric(migrateHost)) {
+                if (virSocketAddrParse(&migrateHostSocket, migrateHost, AF_UNSPEC) < 0)
+                    goto cleanup;
+
+                if (VIR_SOCKET_ADDR_IS_FAMILY(&migrateHostSocket, AF_INET6)) {
+                    migrateHostisIpv6Address = true;
+                }
+            }
 
-           if (VIR_STRDUP(hostname, migrateHost) < 0)
+            if ((migrateHostisIpv6Address &&
+                 virAsprintf(&hostname, "[%s]", migrateHost) < 0) ||
+                (!migrateHostisIpv6Address &&
+                 virAsprintf(&hostname, "%s", migrateHost) < 0))
                 goto cleanup;
         } else {
             if ((hostname = virGetHostname()) == NULL)
-- 
1.9.3