From 6f914247fb78dd70cd700f302c62a7144e4f61df Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Sun, 20 Oct 2013 10:07:19 -0700
Subject: [PATCH] Add support for NFS/PATHCONF

---
 include/nfsc/libnfs-raw.h | 16 ++++++++++++++++
 nfs/libnfs-raw-nfs.c      |  2 +-
 nfs/nfs.c                 | 31 ++++++++++++++++++++++++++++++-
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/include/nfsc/libnfs-raw.h b/include/nfsc/libnfs-raw.h
index b71e6b0..9a8a4ce 100644
--- a/include/nfsc/libnfs-raw.h
+++ b/include/nfsc/libnfs-raw.h
@@ -312,6 +312,22 @@ int rpc_nfs_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);
  */
 int rpc_nfs_getattr_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);
 
+/*
+ * Call NFS/PATHCONF
+ * Function returns
+ *  0 : The call was initiated. The callback will be invoked when the call completes.
+ * <0 : An error occured when trying to set up the call. The callback will not be invoked.
+ *
+ * When the callback is invoked, status indicates the result:
+ * RPC_STATUS_SUCCESS : We got a successful response from the nfs daemon.
+ *                      data is PATHCONF3res
+ * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
+ *                      data is the error string.
+ * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
+ *                     data is NULL.
+ */
+int rpc_nfs_pathconf_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);
+
 /*
  * Call NFS/LOOKUP
  * Function returns
diff --git a/nfs/libnfs-raw-nfs.c b/nfs/libnfs-raw-nfs.c
index ce319ec..ab3c4f7 100644
--- a/nfs/libnfs-raw-nfs.c
+++ b/nfs/libnfs-raw-nfs.c
@@ -628,7 +628,7 @@ zdr_set_mode3 (ZDR *zdrs, set_mode3 *objp)
 	register int32_t *buf;
 	buf = NULL;
 
-	 if (!zdr_bool (zdrs, &objp->set_it))
+	if (!zdr_bool (zdrs, &objp->set_it))
 		 return FALSE;
 	switch (objp->set_it) {
 	case TRUE:
diff --git a/nfs/nfs.c b/nfs/nfs.c
index 44b7538..c3cebc4 100644
--- a/nfs/nfs.c
+++ b/nfs/nfs.c
@@ -143,7 +143,36 @@ int rpc_nfs_getattr_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh
 	}
 
 	if (rpc_queue_pdu(rpc, pdu) != 0) {
-		rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nfs/null call");
+		rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nfs/getattr call");
+		rpc_free_pdu(rpc, pdu);
+		return -3;
+	}
+
+	return 0;
+}
+
+int rpc_nfs_pathconf_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data)
+{
+	struct rpc_pdu *pdu;
+	PATHCONF3args args;
+
+	pdu = rpc_allocate_pdu(rpc, NFS_PROGRAM, NFS_V3, NFS3_PATHCONF, cb, private_data, (zdrproc_t)zdr_PATHCONF3res, sizeof(PATHCONF3res));
+	if (pdu == NULL) {
+		rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nfs/pathconf call");
+		return -1;
+	}
+
+	args.object.data.data_len = fh->data.data_len; 
+	args.object.data.data_val = fh->data.data_val; 
+
+	if (zdr_PATHCONF3args(&pdu->zdr, &args) == 0) {
+		rpc_set_error(rpc, "ZDR error: Failed to encode PATHCONF3args");
+		rpc_free_pdu(rpc, pdu);
+		return -2;
+	}
+
+	if (rpc_queue_pdu(rpc, pdu) != 0) {
+		rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nfs/pathconf call");
 		rpc_free_pdu(rpc, pdu);
 		return -3;
 	}
-- 
2.34.1