[PATCH 6/8] virsh: Introduce virshNWFilterNameCompleter

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The virConnectListAllNWFilters() has no extra flags yet, which
simplifies things a bit.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
 tools/virsh-completer.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 tools/virsh-completer.h |  4 ++++
 tools/virsh-nwfilter.c  |  9 ++++++---
 3 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/tools/virsh-completer.c b/tools/virsh-completer.c
index c50143142..9e6f086c0 100644
--- a/tools/virsh-completer.c
+++ b/tools/virsh-completer.c
@@ -393,3 +393,48 @@ virshNodeDeviceNameCompleter(vshControl *ctl,
     VIR_FREE(ret);
     return NULL;
 }
+
+
+char **
+virshNWFilterNameCompleter(vshControl *ctl,
+                           const vshCmd *cmd ATTRIBUTE_UNUSED,
+                           unsigned int flags)
+{
+    virshControlPtr priv = ctl->privData;
+    virNWFilterPtr *nwfilters = NULL;
+    int nnwfilters = 0;
+    size_t i = 0;
+    char **ret = NULL;
+
+    virCheckFlags(0, NULL);
+
+    if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
+        return NULL;
+
+    if ((nnwfilters = virConnectListAllNWFilters(priv->conn, &nwfilters, flags)) < 0)
+        return NULL;
+
+    if (VIR_ALLOC_N(ret, nnwfilters + 1) < 0)
+        goto error;
+
+    for (i = 0; i < nnwfilters; i++) {
+        const char *name = virNWFilterGetName(nwfilters[i]);
+
+        if (VIR_STRDUP(ret[i], name) < 0)
+            goto error;
+
+        virNWFilterFree(nwfilters[i]);
+    }
+    VIR_FREE(nwfilters);
+
+    return ret;
+
+ error:
+    for (; i < nnwfilters; i++)
+        virNWFilterFree(nwfilters[i]);
+    VIR_FREE(nwfilters);
+    for (i = 0; i < nnwfilters; i++)
+        VIR_FREE(ret[i]);
+    VIR_FREE(ret);
+    return NULL;
+}
diff --git a/tools/virsh-completer.h b/tools/virsh-completer.h
index 19fa2113d..3c3b17f1e 100644
--- a/tools/virsh-completer.h
+++ b/tools/virsh-completer.h
@@ -58,4 +58,8 @@ char ** virshNodeDeviceNameCompleter(vshControl *ctl,
                                      const vshCmd *cmd,
                                      unsigned int flags);
 
+char ** virshNWFilterNameCompleter(vshControl *ctl,
+                                   const vshCmd *cmd,
+                                   unsigned int flags);
+
 #endif
diff --git a/tools/virsh-nwfilter.c b/tools/virsh-nwfilter.c
index 40bc193ad..06a002dff 100644
--- a/tools/virsh-nwfilter.c
+++ b/tools/virsh-nwfilter.c
@@ -136,7 +136,8 @@ static const vshCmdOptDef opts_nwfilter_undefine[] = {
     {.name = "nwfilter",
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
-     .help = N_("network filter name or uuid")
+     .help = N_("network filter name or uuid"),
+     .completer = virshNWFilterNameCompleter,
     },
     {.name = NULL}
 };
@@ -179,7 +180,8 @@ static const vshCmdOptDef opts_nwfilter_dumpxml[] = {
     {.name = "nwfilter",
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
-     .help = N_("network filter name or uuid")
+     .help = N_("network filter name or uuid"),
+     .completer = virshNWFilterNameCompleter,
     },
     {.name = NULL}
 };
@@ -396,7 +398,8 @@ static const vshCmdOptDef opts_nwfilter_edit[] = {
     {.name = "nwfilter",
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
-     .help = N_("network filter name or uuid")
+     .help = N_("network filter name or uuid"),
+     .completer = virshNWFilterNameCompleter,
     },
     {.name = NULL}
 };
-- 
2.13.6

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