2 files changed, 29 insertions, 3 deletions
diff --git a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go
index 612335a81..1df427243 100644
--- a/vendor/github.com/containernetworking/cni/pkg/version/plugin.go
+++ b/vendor/github.com/containernetworking/cni/pkg/version/plugin.go
@@ -86,9 +86,13 @@ func (*PluginDecoder) Decode(jsonBytes []byte) (PluginInfo, error) {
 // minor, and micro numbers or returns an error
 func ParseVersion(version string) (int, int, int, error) {
 	var major, minor, micro int
+	if version == "" {
+		return -1, -1, -1, fmt.Errorf("invalid version %q: the version is empty", version)
+	}
+
 	parts := strings.Split(version, ".")
-	if len(parts) == 0 || len(parts) >= 4 {
-		return -1, -1, -1, fmt.Errorf("invalid version %q: too many or too few parts", version)
+	if len(parts) >= 4 {
+		return -1, -1, -1, fmt.Errorf("invalid version %q: too many parts", version)
 	}
 
 	major, err := strconv.Atoi(parts[0])
@@ -114,7 +118,7 @@ func ParseVersion(version string) (int, int, int, error) {
 }
 
 // GreaterThanOrEqualTo takes two string versions, parses them into major/minor/micro
-// nubmers, and compares them to determine whether the first version is greater
+// numbers, and compares them to determine whether the first version is greater
 // than or equal to the second
 func GreaterThanOrEqualTo(version, otherVersion string) (bool, error) {
 	firstMajor, firstMinor, firstMicro, err := ParseVersion(version)
diff --git a/vendor/github.com/containernetworking/cni/pkg/version/version.go b/vendor/github.com/containernetworking/cni/pkg/version/version.go
index c8e46d55b..8f3508e61 100644
--- a/vendor/github.com/containernetworking/cni/pkg/version/version.go
+++ b/vendor/github.com/containernetworking/cni/pkg/version/version.go
@@ -15,6 +15,7 @@
 package version
 
 import (
+	"encoding/json"
 	"fmt"
 
 	"github.com/containernetworking/cni/pkg/types"
@@ -59,3 +60,24 @@ func NewResult(version string, resultBytes []byte) (types.Result, error) {
 
 	return nil, fmt.Errorf("unsupported CNI result version %q", version)
 }
+
+// ParsePrevResult parses a prevResult in a NetConf structure and sets
+// the NetConf's PrevResult member to the parsed Result object.
+func ParsePrevResult(conf *types.NetConf) error {
+	if conf.RawPrevResult == nil {
+		return nil
+	}
+
+	resultBytes, err := json.Marshal(conf.RawPrevResult)
+	if err != nil {
+		return fmt.Errorf("could not serialize prevResult: %v", err)
+	}
+
+	conf.RawPrevResult = nil
+	conf.PrevResult, err = NewResult(conf.CNIVersion, resultBytes)
+	if err != nil {
+		return fmt.Errorf("could not parse prevResult: %v", err)
+	}
+
+	return nil
+}