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virsh: don't crash if shutdown --mode not provided

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virStringSplit requires a non-NULL input, but commit cef78ed forgot
to follow the rule.

* tools/virsh-domain.c (cmdReboot, cmdShutdown): Avoid NULL deref.
This commit is contained in:
Eric Blake 2012-11-30 14:48:24 -07:00
parent 5a608c3dee
commit 7243752694
1 changed files with 6 additions and 6 deletions
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12
tools/virsh-domain.c
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@ -4036,20 +4036,20 @@ cmdShutdown(vshControl *ctl, const vshCmd *cmd)
const char *mode = NULL;
int flags = 0;
int rv;
char **modes, **tmp;
char **modes = NULL, **tmp;
if (vshCommandOptString(cmd, "mode", &mode) < 0) {
vshError(ctl, "%s", _("Invalid type"));
return false;
}
if (!(modes = virStringSplit(mode, ",", 0))) {
if (mode && !(modes = virStringSplit(mode, ",", 0))) {
vshError(ctl, "%s", _("Cannot parse mode string"));
return false;
}
tmp = modes;
while (*tmp) {
while (tmp && *tmp) {
mode = *tmp;
if (STREQ(mode, "acpi")) {
flags |= VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN;
@ -4112,20 +4112,20 @@ cmdReboot(vshControl *ctl, const vshCmd *cmd)
const char *name;
const char *mode = NULL;
int flags = 0;
char **modes, **tmp;
char **modes = NULL, **tmp;
if (vshCommandOptString(cmd, "mode", &mode) < 0) {
vshError(ctl, "%s", _("Invalid type"));
return false;
}
if (!(modes = virStringSplit(mode, ",", 0))) {
if (mode && !(modes = virStringSplit(mode, ",", 0))) {
vshError(ctl, "%s", _("Cannot parse mode string"));
return false;
}
tmp = modes;
while (*tmp) {
while (tmp && *tmp) {
mode = *tmp;
if (STREQ(mode, "acpi")) {
flags |= VIR_DOMAIN_REBOOT_ACPI_POWER_BTN;