Fix segfaults attribute to missing options

In cases where the remote client culls options to a command, we need to
be sure that the lookup for that flag does not result in a nil pointer.
To do so, we add a Remote attribute to the podman struct and then cli
helper funcs are now aware they are remote.

Signed-off-by: baude <bbaude@redhat.com>

2 files changed, 28 insertions, 9 deletions

diff --git a/cmd/podman/cliconfig/commands.go b/cmd/podman/cliconfig/commands.go
index 00b66e32a..f6d92611f 100644
--- a/cmd/podman/cliconfig/commands.go
+++ b/cmd/podman/cliconfig/commands.go
@@ -26,7 +26,9 @@ func (p *PodmanCommand) IsSet(opt string) bool {
 func (p *PodmanCommand) Bool(opt string) bool {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return false
 	}
 	val, err := p.Flags().GetBool(opt)
@@ -40,7 +42,9 @@ func (p *PodmanCommand) Bool(opt string) bool {
 func (p *PodmanCommand) String(opt string) string {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return ""
 	}
 	val, err := p.Flags().GetString(opt)
@@ -54,7 +58,9 @@ func (p *PodmanCommand) String(opt string) string {
 func (p *PodmanCommand) StringArray(opt string) []string {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return []string{}
 	}
 	val, err := p.Flags().GetStringArray(opt)
@@ -68,7 +74,9 @@ func (p *PodmanCommand) StringArray(opt string) []string {
 func (p *PodmanCommand) StringSlice(opt string) []string {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return []string{}
 	}
 	val, err := p.Flags().GetStringSlice(opt)
@@ -82,7 +90,9 @@ func (p *PodmanCommand) StringSlice(opt string) []string {
 func (p *PodmanCommand) Int(opt string) int {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return 0
 	}
 	val, err := p.Flags().GetInt(opt)
@@ -96,7 +106,9 @@ func (p *PodmanCommand) Int(opt string) int {
 func (p *PodmanCommand) Uint(opt string) uint {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return 0
 	}
 	val, err := p.Flags().GetUint(opt)
@@ -110,7 +122,9 @@ func (p *PodmanCommand) Uint(opt string) uint {
 func (p *PodmanCommand) Int64(opt string) int64 {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return 0
 	}
 	val, err := p.Flags().GetInt64(opt)
@@ -124,7 +138,9 @@ func (p *PodmanCommand) Int64(opt string) int64 {
 func (p *PodmanCommand) Uint64(opt string) uint64 {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return 0
 	}
 	val, err := p.Flags().GetUint64(opt)
@@ -138,7 +154,9 @@ func (p *PodmanCommand) Uint64(opt string) uint64 {
 func (p *PodmanCommand) Float64(opt string) float64 {
 	flag := p.Flags().Lookup(opt)
 	if flag == nil {
-		logrus.Errorf("Could not find flag %s", opt)
+		if !p.Remote {
+			logrus.Errorf("Could not find flag %s", opt)
+		}
 		return 0
 	}
 	val, err := p.Flags().GetFloat64(opt)
diff --git a/cmd/podman/cliconfig/config.go b/cmd/podman/cliconfig/config.go
index 2692ace36..982c77c17 100644
--- a/cmd/podman/cliconfig/config.go
+++ b/cmd/podman/cliconfig/config.go
@@ -8,6 +8,7 @@ type PodmanCommand struct {
 	*cobra.Command
 	InputArgs   []string
 	GlobalFlags MainFlags
+	Remote      bool
 }
 
 type MainFlags struct {