tools/virsh-completer-snapshot.c

   1 /*
   2  * virsh-completer-snapshot.c: virsh completer callbacks related to snapshots
   3  *
   4  * Copyright (C) 2019 Red Hat, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library.  If not, see
  18  * <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22
  23 #include "virsh-completer-snapshot.h"
  24 #include "virsh-util.h"
  25 #include "virsh.h"
  26
  27 char **
  28 virshSnapshotNameCompleter(vshControl *ctl,
  29                            const vshCmd *cmd,
  30                            unsigned int flags)
  31 {
  32     virshControl *priv = ctl->privData;
  33     g_autoptr(virshDomain) dom = NULL;
  34     virDomainSnapshotPtr *snapshots = NULL;
  35     int rc;
  36     int nsnapshots = 0;
  37     size_t i = 0;
  38     char **ret = NULL;
  39     g_auto(GStrv) tmp = NULL;
  40
  41     virCheckFlags(0, NULL);
  42
  43     if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
  44         return NULL;
  45
  46     if (!(dom = virshCommandOptDomain(ctl, cmd, NULL)))
  47         return NULL;
  48
  49     if ((rc = virDomainListAllSnapshots(dom, &snapshots, flags)) < 0)
  50         goto cleanup;
  51     nsnapshots = rc;
  52
  53     tmp = g_new0(char *, nsnapshots + 1);
  54
  55     for (i = 0; i < nsnapshots; i++) {
  56         const char *name = virDomainSnapshotGetName(snapshots[i]);
  57
  58         tmp[i] = g_strdup(name);
  59     }
  60
  61     ret = g_steal_pointer(&tmp);
  62
  63  cleanup:
  64     for (i = 0; i < nsnapshots; i++)
  65         virshDomainSnapshotFree(snapshots[i]);
  66     g_free(snapshots);
  67     return ret;
  68 }