From 13bb2e14fcdd260d060b7240357d4a8a80002114 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Wed, 26 Aug 2015 20:25:52 -0600
Subject: work

---
 src/nslcd_proto/enumerator@T.got         | 19 +++++++++++++++----
 src/nslcd_proto/func_handlerequest.go.sh |  5 +++--
 src/nslcd_proto/io.go                    | 12 +++++-------
 src/nslcd_proto/nslcd_h.go               |  3 +++
 src/nslcd_proto/struct_backend.go.sh     |  6 ++++--
 src/nslcd_proto/util.go                  | 14 ++++++--------
 6 files changed, 36 insertions(+), 23 deletions(-)

(limited to 'src/nslcd_proto')

diff --git a/src/nslcd_proto/enumerator@T.got b/src/nslcd_proto/enumerator@T.got
index 88c3603..06d6171 100644
--- a/src/nslcd_proto/enumerator@T.got
+++ b/src/nslcd_proto/enumerator@T.got
@@ -2,7 +2,7 @@
 package nslcd_proto
 
 type <T>_Enumerator interface {
-	GetNext() (n <T>, err error)
+	GetNext() (n *<T>, err error)
 	GenericGetNext() (n interface{}, err error)
 }
 
@@ -15,12 +15,23 @@ func New_<T>_List(ary []<T>) *<T>_List {
 	return &<T>_List{ary, 0}
 }
 
-func (o *<T>_List) GetNext() (n <T>, err error) {
-	n = o.dat[o.i]
+func (o *<T>_List) GetNext() (n *<T>, err error) {
+	if o.i < len(o.dat) {
+		n = &o.dat[o.i]
+		o.i++
+	}
 	err = nil
-	o.i++
 	return
 }
 func (o *<T>_List) GenericGetNext() (n interface{}, err error) {
 	return o.GetNext()
 }
+
+type <T>_Ø struct{}
+
+func (o *<T>_Ø) GetNext() (*<T>, error) {
+	return nil, nil
+}
+func (o *<T>_Ø) GenericGetNext() (interface{}, error) {
+	return nil, nil
+}
diff --git a/src/nslcd_proto/func_handlerequest.go.sh b/src/nslcd_proto/func_handlerequest.go.sh
index 0f0c686..6c6f988 100755
--- a/src/nslcd_proto/func_handlerequest.go.sh
+++ b/src/nslcd_proto/func_handlerequest.go.sh
@@ -7,13 +7,14 @@ package nslcd_proto
 import (
 	"fmt"
 	"io"
+	"syscall"
 )
 
 type enumerator interface {
 	GenericGetNext() (n interface{}, err error)
 }
 
-func handleRequest(in io.Reader, out io.Writer, backend Backend) {
+func handleRequest(backend Backend, in io.Reader, out io.Writer, cred syscall.Ucred) {
 	var version int32
 	read(in, &version)
 	if version != NSLCD_VERSION {
@@ -30,7 +31,7 @@ while read -r request; do
 	case NSLCD_ACTION_${request^^}:
 		var req Request_${request}
 		read(in, &req)
-		res = backend.${request}(req)
+		res = backend.${request}(cred, req)
 EOT
 done < "$requests"
 )
diff --git a/src/nslcd_proto/io.go b/src/nslcd_proto/io.go
index 0804e98..e31aabc 100644
--- a/src/nslcd_proto/io.go
+++ b/src/nslcd_proto/io.go
@@ -6,11 +6,9 @@ import (
 	"io"
 	"net"
 	"reflect"
+	"syscall"
 )
 
-//#include <sys/socket.h>
-import "C"
-
 type NslcdObject interface {
 	NslcdWrite(fd io.Writer)
 }
@@ -46,9 +44,9 @@ func write(fd io.Writer, data interface{}) {
 		var af int32 = -1
 		switch len(data) {
 		case net.IPv4len:
-			af = C.AF_INET
+			af = syscall.AF_INET
 		case net.IPv6len:
-			af = C.AF_INET6
+			af = syscall.AF_INET6
 		}
 		var bytes []byte
 		if af < 0 {
@@ -112,9 +110,9 @@ func read(fd io.Reader, data interface{}) {
 		read(fd, &af)
 		var _len int32
 		switch af {
-		case C.AF_INET:
+		case syscall.AF_INET:
 			_len = net.IPv4len
-		case C.AF_INET6:
+		case syscall.AF_INET6:
 			_len = net.IPv6len
 		default:
 			panic(NslcdError(fmt.Sprintf("incorrect address family specified: %d", af)))
diff --git a/src/nslcd_proto/nslcd_h.go b/src/nslcd_proto/nslcd_h.go
index 56c1316..4034472 100644
--- a/src/nslcd_proto/nslcd_h.go
+++ b/src/nslcd_proto/nslcd_h.go
@@ -1,4 +1,5 @@
 // This file is based heavily on nslcd.h from nss-pam-ldapd
+// Copyright (C) 2015 Luke Shumaker
 /*
    nslcd.h - file describing client/server protocol
 
@@ -272,6 +273,8 @@ const NSLCD_ACTION_SERVICE_ALL       int32 = 0x000b0008; type Request_Service_Al
 /* Extended user account (/etc/shadow) information requests. Result
    values for a single entry are: */
 type Shadow struct {
+	// It is my understanding that an empty value for an INT32
+	// field is expressed with a negative number. -- lukeshu
 	Name           string
 	Password       string
 	LastChangeDate int32
diff --git a/src/nslcd_proto/struct_backend.go.sh b/src/nslcd_proto/struct_backend.go.sh
index 792ae84..4728a87 100755
--- a/src/nslcd_proto/struct_backend.go.sh
+++ b/src/nslcd_proto/struct_backend.go.sh
@@ -3,8 +3,10 @@ requests=$1
 cat <<EOF | gofmt
 package nslcd_proto
 
+import "syscall"
+
 type Backend interface {
-	$(sed -rn 's/([^_]+)(.*)/\1\2(Request_\1\2) \1_Enumerator/p' "$requests" | grep -v PAM)
-	$(sed -rn 's/(PAM)(.*)/\1\2(Request_\1\2) \1\2_Enumerator/p' "$requests")
+	$(sed -rn 's/([^_]+)(.*)/\1\2(syscall.Ucred, Request_\1\2) \1_Enumerator/p' "$requests" | grep -v PAM)
+	$(sed -rn 's/(PAM)(.*)/\1\2(syscall.Ucred, Request_\1\2) \1\2_Enumerator/p' "$requests")
 }
 EOF
diff --git a/src/nslcd_proto/util.go b/src/nslcd_proto/util.go
index 38c5705..1f38c8e 100644
--- a/src/nslcd_proto/util.go
+++ b/src/nslcd_proto/util.go
@@ -1,6 +1,9 @@
 package nslcd_proto
 
-import "io"
+import (
+	"io"
+	"syscall"
+)
 
 type NslcdError string
 
@@ -40,7 +43,7 @@ func Read(fd io.Reader, data interface{}) (err error) {
 	return
 }
 
-func HandleRequest(in io.Reader, out io.Writer, backend Backend) (err error) {
+func HandleRequest(backend Backend, in io.Reader, out io.Writer, cred syscall.Ucred) (err error) {
 	err = nil
 	defer func() {
 		if r := recover(); r != nil {
@@ -52,11 +55,6 @@ func HandleRequest(in io.Reader, out io.Writer, backend Backend) (err error) {
 			}
 		}
 	}()
-	handleRequest(in, out, backend)
+	handleRequest(backend, in, out, cred)
 	return
 }
-
-// Initialize() error { func
-//         e := c.SetReadDeadline(...)
-//         e := c.SetWriteDeadline(...)
-// }
-- 
cgit v1.2.3-54-g00ecf