There is a family of convenient macros: NULLSTR, NULLSTR_EMPTY,
NULLSTR_STAR, NULLSTR_MINUS which hides ternary operator.
Generated using the following spatch (and its obvious variants):
@@
expression s;
@@
<+...
- s ? s : "<null>"
+ NULLSTR(s)
...+>
Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
src/libvirt.c | 2 +-
src/network/network_iptables.c | 4 ++--
src/network/network_nftables.c | 4 ++--
src/qemu/qemu_firmware.c | 2 +-
src/util/virnetdevip.c | 8 ++++----
tools/virsh-checkpoint.c | 2 +-
tools/virsh-domain-monitor.c | 8 ++++----
tools/virsh-nodedev.c | 2 +-
8 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/src/libvirt.c b/src/libvirt.c
index 26c3fe454f..1d37696d6f 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -168,7 +168,7 @@ virConnectAuthCallbackDefault(virConnectCredentialPtr cred,
}
if (cred[i].type != VIR_CRED_EXTERNAL) {
- cred[i].result = bufptr ? bufptr : g_strdup(cred[i].defresult ? cred[i].defresult : "");
+ cred[i].result = bufptr ? bufptr : g_strdup(NULLSTR_EMPTY(cred[i].defresult));
cred[i].resultlen = strlen(cred[i].result);
}
}
diff --git a/src/network/network_iptables.c b/src/network/network_iptables.c
index f774176b3d..e8da15426e 100644
--- a/src/network/network_iptables.c
+++ b/src/network/network_iptables.c
@@ -867,10 +867,10 @@ iptablesForwardMasquerade(virFirewall *fw,
if (addrStartStr && addrStartStr[0]) {
if (addrEndStr && addrEndStr[0]) {
natRangeStr = g_strdup_printf("%s-%s%s", addrStartStr, addrEndStr,
- portRangeStr ? portRangeStr : "");
+ NULLSTR_EMPTY(portRangeStr));
} else {
natRangeStr = g_strdup_printf("%s%s", addrStartStr,
- portRangeStr ? portRangeStr : "");
+ NULLSTR_EMPTY(portRangeStr));
}
virFirewallCmdAddArgList(fw, fwCmd,
diff --git a/src/network/network_nftables.c b/src/network/network_nftables.c
index 268d1f12ca..f8b5ab665d 100644
--- a/src/network/network_nftables.c
+++ b/src/network/network_nftables.c
@@ -588,10 +588,10 @@ nftablesAddForwardMasquerade(virFirewall *fw,
if (addrStartStr && addrStartStr[0]) {
if (addrEndStr && addrEndStr[0]) {
natRangeStr = g_strdup_printf("%s-%s%s", addrStartStr, addrEndStr,
- portRangeStr ? portRangeStr : "");
+ NULLSTR_EMPTY(portRangeStr));
} else {
natRangeStr = g_strdup_printf("%s%s", addrStartStr,
- portRangeStr ? portRangeStr : "");
+ NULLSTR_EMPTY(portRangeStr));
}
virFirewallCmdAddArgList(fw, fwCmd, "counter", "snat", "to", natRangeStr, NULL);
diff --git a/src/qemu/qemu_firmware.c b/src/qemu/qemu_firmware.c
index 08ca99e1ac..914f8596bd 100644
--- a/src/qemu/qemu_firmware.c
+++ b/src/qemu/qemu_firmware.c
@@ -1090,7 +1090,7 @@ qemuFirmwareEnsureNVRAM(virDomainDef *def,
loader->nvram->path = g_strdup_printf("%s/%s_VARS%s",
cfg->nvramDir, def->name,
- ext ? ext : "");
+ NULLSTR_EMPTY(ext));
}
diff --git a/src/util/virnetdevip.c b/src/util/virnetdevip.c
index 3b02fe0cec..f365c1999c 100644
--- a/src/util/virnetdevip.c
+++ b/src/util/virnetdevip.c
@@ -188,8 +188,8 @@ virNetDevIPAddrAdd(const char *ifname,
VIR_DEBUG("Adding IP address %s/%d%s%s%s%s to %s",
NULLSTR(ipStr), prefix,
- peerStr ? " peer " : "", peerStr ? peerStr : "",
- bcastStr ? " bcast " : "", bcastStr ? bcastStr : "",
+ peerStr ? " peer " : "", NULLSTR_EMPTY(peerStr),
+ bcastStr ? " bcast " : "", NULLSTR_EMPTY(bcastStr),
ifname);
if (!(nlmsg = virNetDevCreateNetlinkAddressMessage(RTM_NEWADDR, ifname,
@@ -206,8 +206,8 @@ virNetDevIPAddrAdd(const char *ifname,
virReportError(VIR_ERR_SYSTEM_ERROR,
_("Failed to add IP address %1$s/%2$d%3$s%4$s%5$s%6$s to %7$s"),
ipStr, prefix,
- peerStr ? " peer " : "", peerStr ? peerStr : "",
- bcastStr ? " bcast " : "", bcastStr ? bcastStr : "",
+ peerStr ? " peer " : "", NULLSTR_EMPTY(peerStr),
+ bcastStr ? " bcast " : "", NULLSTR_EMPTY(bcastStr),
ifname);
return -1;
}
diff --git a/tools/virsh-checkpoint.c b/tools/virsh-checkpoint.c
index 972b2f979c..a0ac0d7f71 100644
--- a/tools/virsh-checkpoint.c
+++ b/tools/virsh-checkpoint.c
@@ -455,7 +455,7 @@ cmdCheckpointInfo(vshControl *ctl,
_("unexpected problem querying checkpoint state"));
return false;
}
- vshPrint(ctl, "%-15s %s\n", _("Parent:"), parent ? parent : "-");
+ vshPrint(ctl, "%-15s %s\n", _("Parent:"), NULLSTR_MINUS(parent));
/* Children, Descendants. */
flags = 0;
diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c
index 74deca2f94..37184baa69 100644
--- a/tools/virsh-domain-monitor.c
+++ b/tools/virsh-domain-monitor.c
@@ -712,11 +712,11 @@ cmdDomiflist(vshControl *ctl, const vshCmd *cmd)
mac = virXPathString("string(./mac/@address)", ctxt);
if (vshTableRowAppend(table,
- target ? target : "-",
+ NULLSTR_MINUS(target),
type,
- source ? source : "-",
- model ? model : "-",
- mac ? mac : "-",
+ NULLSTR_MINUS(source),
+ NULLSTR_MINUS(model),
+ NULLSTR_MINUS(mac),
NULL) < 0)
return false;
}
diff --git a/tools/virsh-nodedev.c b/tools/virsh-nodedev.c
index 910eaefc9e..145faff3e7 100644
--- a/tools/virsh-nodedev.c
+++ b/tools/virsh-nodedev.c
@@ -1233,7 +1233,7 @@ cmdNodeDeviceInfo(vshControl *ctl, const vshCmd *cmd)
parent = virNodeDeviceGetParent(device);
vshPrint(ctl, "%-15s %s\n", _("Name:"), virNodeDeviceGetName(device));
- vshPrint(ctl, "%-15s %s\n", _("Parent:"), parent ? parent : "");
+ vshPrint(ctl, "%-15s %s\n", _("Parent:"), NULLSTR_EMPTY(parent));
vshPrint(ctl, "%-15s %s\n", _("Active:"), virNodeDeviceIsActive(device) ?
_("yes") : _("no"));
vshPrint(ctl, "%-15s %s\n", _("Persistent:"),
--
2.44.2
