1 files changed, 125 insertions, 0 deletions
diff --git a/vendor/github.com/hashicorp/go-sockaddr/template/template.go b/vendor/github.com/hashicorp/go-sockaddr/template/template.go
new file mode 100644
index 000000000..ffe467b7f
--- /dev/null
+++ b/vendor/github.com/hashicorp/go-sockaddr/template/template.go
@@ -0,0 +1,125 @@
+package template
+
+import (
+	"bytes"
+	"fmt"
+	"text/template"
+
+	"github.com/hashicorp/errwrap"
+	sockaddr "github.com/hashicorp/go-sockaddr"
+)
+
+var (
+	// SourceFuncs is a map of all top-level functions that generate
+	// sockaddr data types.
+	SourceFuncs template.FuncMap
+
+	// SortFuncs is a map of all functions used in sorting
+	SortFuncs template.FuncMap
+
+	// FilterFuncs is a map of all functions used in sorting
+	FilterFuncs template.FuncMap
+
+	// HelperFuncs is a map of all functions used in sorting
+	HelperFuncs template.FuncMap
+)
+
+func init() {
+	SourceFuncs = template.FuncMap{
+		// GetAllInterfaces - Returns an exhaustive set of IfAddr
+		// structs available on the host.  `GetAllInterfaces` is the
+		// initial input and accessible as the initial "dot" in the
+		// pipeline.
+		"GetAllInterfaces": sockaddr.GetAllInterfaces,
+
+		// GetDefaultInterfaces - Returns one IfAddr for every IP that
+		// is on the interface containing the default route for the
+		// host.
+		"GetDefaultInterfaces": sockaddr.GetDefaultInterfaces,
+
+		// GetPrivateInterfaces - Returns one IfAddr for every IP that
+		// matches RFC 6890, are attached to the interface with the
+		// default route, and are forwardable IP addresses.  NOTE: RFC
+		// 6890 is a more exhaustive version of RFC1918 because it spans
+		// IPv4 and IPv6, however it doespermit the inclusion of likely
+		// undesired addresses such as multicast, therefore our
+		// definition of a "private" address also excludes
+		// non-forwardable IP addresses (as defined by the IETF).
+		"GetPrivateInterfaces": sockaddr.GetPrivateInterfaces,
+
+		// GetPublicInterfaces - Returns a list of IfAddr that do not
+		// match RFC 6890, are attached to the default route, and are
+		// forwardable.
+		"GetPublicInterfaces": sockaddr.GetPublicInterfaces,
+	}
+
+	SortFuncs = template.FuncMap{
+		"sort": sockaddr.SortIfBy,
+	}
+
+	FilterFuncs = template.FuncMap{
+		"exclude": sockaddr.ExcludeIfs,
+		"include": sockaddr.IncludeIfs,
+	}
+
+	HelperFuncs = template.FuncMap{
+		// Misc functions that operate on IfAddrs inputs
+		"attr":   sockaddr.IfAttr,
+		"join":   sockaddr.JoinIfAddrs,
+		"limit":  sockaddr.LimitIfAddrs,
+		"offset": sockaddr.OffsetIfAddrs,
+		"unique": sockaddr.UniqueIfAddrsBy,
+
+		// Return a Private RFC 6890 IP address string that is attached
+		// to the default route and a forwardable address.
+		"GetPrivateIP": sockaddr.GetPrivateIP,
+
+		// Return a Public RFC 6890 IP address string that is attached
+		// to the default route and a forwardable address.
+		"GetPublicIP": sockaddr.GetPublicIP,
+
+		// Return the first IP address of the named interface, sorted by
+		// the largest network size.
+		"GetInterfaceIP": sockaddr.GetInterfaceIP,
+	}
+}
+
+// Parse parses input as template input using the addresses available on the
+// host, then returns the string output if there are no errors.
+func Parse(input string) (string, error) {
+	addrs, err := sockaddr.GetAllInterfaces()
+	if err != nil {
+		return "", errwrap.Wrapf("unable to query interface addresses: {{err}}", err)
+	}
+
+	return ParseIfAddrs(input, addrs)
+}
+
+// ParseIfAddrs parses input as template input using the IfAddrs inputs, then
+// returns the string output if there are no errors.
+func ParseIfAddrs(input string, ifAddrs sockaddr.IfAddrs) (string, error) {
+	return ParseIfAddrsTemplate(input, ifAddrs, template.New("sockaddr.Parse"))
+}
+
+// ParseIfAddrsTemplate parses input as template input using the IfAddrs inputs,
+// then returns the string output if there are no errors.
+func ParseIfAddrsTemplate(input string, ifAddrs sockaddr.IfAddrs, tmplIn *template.Template) (string, error) {
+	// Create a template, add the function map, and parse the text.
+	tmpl, err := tmplIn.Option("missingkey=error").
+		Funcs(SourceFuncs).
+		Funcs(SortFuncs).
+		Funcs(FilterFuncs).
+		Funcs(HelperFuncs).
+		Parse(input)
+	if err != nil {
+		return "", errwrap.Wrapf(fmt.Sprintf("unable to parse template %+q: {{err}}", input), err)
+	}
+
+	var outWriter bytes.Buffer
+	err = tmpl.Execute(&outWriter, ifAddrs)
+	if err != nil {
+		return "", errwrap.Wrapf(fmt.Sprintf("unable to execute sockaddr input %+q: {{err}}", input), err)
+	}
+
+	return outWriter.String(), nil
+}