From 4cd6e31bd364270580f2907fbc5669bf29d09578 Mon Sep 17 00:00:00 2001
From: Jeremy Allison <jra@samba.org>
Date: Fri, 14 Feb 2003 23:04:03 +0000
Subject: Ensure that only parse_prs.c access internal members of the
 prs_struct. Needed to move to disk based i/o later. Jeremy. (This used to be
 commit 4c3ee228fcdb089eaeead95e79532a9cf6cb0de6)

---
 source3/rpc_server/srv_pipe.c       | 26 +++++++++++---------------
 source3/rpc_server/srv_pipe_hnd.c   | 15 +++++----------
 source3/rpc_server/srv_spoolss_nt.c |  5 ++---
 3 files changed, 18 insertions(+), 28 deletions(-)

(limited to 'source3/rpc_server')

diff --git a/source3/rpc_server/srv_pipe.c b/source3/rpc_server/srv_pipe.c
index 4c4b3e7af3..50127005a1 100644
--- a/source3/rpc_server/srv_pipe.c
+++ b/source3/rpc_server/srv_pipe.c
@@ -84,8 +84,6 @@ BOOL create_next_pdu(pipes_struct *p)
 	uint32 data_space_available;
 	uint32 data_len_left;
 	prs_struct outgoing_pdu;
-	char *data;
-	char *data_from;
 	uint32 data_pos;
 
 	/*
@@ -187,26 +185,26 @@ BOOL create_next_pdu(pipes_struct *p)
 	data_pos = prs_offset(&outgoing_pdu);
 
 	/* Copy the data into the PDU. */
-	data_from = prs_data_p(&p->out_data.rdata) + p->out_data.data_sent_length;
 
-	if(!prs_append_data(&outgoing_pdu, data_from, data_len)) {
+	if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
 		DEBUG(0,("create_next_pdu: failed to copy %u bytes of data.\n", (unsigned int)data_len));
 		prs_mem_free(&outgoing_pdu);
 		return False;
 	}
 
-	/*
-	 * Set data to point to where we copied the data into.
-	 */
-
-	data = prs_data_p(&outgoing_pdu) + data_pos;
-
 	if (p->hdr.auth_len > 0) {
 		uint32 crc32 = 0;
+		char *data;
 
 		DEBUG(5,("create_next_pdu: sign: %s seal: %s data %d auth %d\n",
 			 BOOLSTR(auth_verify), BOOLSTR(auth_seal), data_len, p->hdr.auth_len));
 
+		/*
+		 * Set data to point to where we copied the data into.
+		 */
+
+		data = prs_data_p(&outgoing_pdu) + data_pos;
+
 		if (auth_seal) {
 			crc32 = crc32_calc_buffer(data, data_len);
 			NTLMSSPcalc_p(p, (uchar*)data, data_len);
@@ -1389,17 +1387,15 @@ BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
 	/* Check for buffer underflow in rpc parsing */
 
 	if ((DEBUGLEVEL >= 10) && 
-	    (p->in_data.data.data_offset != p->in_data.data.buffer_size)) {
-		int data_len = p->in_data.data.buffer_size - 
-			p->in_data.data.data_offset;
+	    (prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
+		size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
 		char *data;
 
 		data = malloc(data_len);
 
 		DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
 		if (data) {
-			prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data,
-				   data_len);
+			prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
 			SAFE_FREE(data);
 		}
 
diff --git a/source3/rpc_server/srv_pipe_hnd.c b/source3/rpc_server/srv_pipe_hnd.c
index 6cdb6836eb..8cb81b9c6d 100644
--- a/source3/rpc_server/srv_pipe_hnd.c
+++ b/source3/rpc_server/srv_pipe_hnd.c
@@ -618,16 +618,11 @@ authentication failed. Denying the request.\n", p->name));
 	 * Append the data portion into the buffer and return.
 	 */
 
-	{
-		char *data_from = prs_data_p(rpc_in_p) + prs_offset(rpc_in_p);
-
-		if(!prs_append_data(&p->in_data.data, data_from, data_len)) {
-			DEBUG(0,("process_request_pdu: Unable to append data size %u to parse buffer of size %u.\n",
-					(unsigned int)data_len, (unsigned int)prs_data_size(&p->in_data.data) ));
-			set_incoming_fault(p);
-			return False;
-		}
-
+	if(!prs_append_some_prs_data(&p->in_data.data, rpc_in_p, prs_offset(rpc_in_p), data_len)) {
+		DEBUG(0,("process_request_pdu: Unable to append data size %u to parse buffer of size %u.\n",
+				(unsigned int)data_len, (unsigned int)prs_data_size(&p->in_data.data) ));
+		set_incoming_fault(p);
+		return False;
 	}
 
 	if(p->hdr.flags & RPC_FLG_LAST) {
diff --git a/source3/rpc_server/srv_spoolss_nt.c b/source3/rpc_server/srv_spoolss_nt.c
index 594c749c9c..8304b14a1c 100644
--- a/source3/rpc_server/srv_spoolss_nt.c
+++ b/source3/rpc_server/srv_spoolss_nt.c
@@ -706,10 +706,9 @@ static void notify_system_time(struct spoolss_notify_msg *msg,
 		return;
 
 	data->notify_data.data.length = prs_offset(&ps);
-	data->notify_data.data.string =
-		talloc(mem_ctx, prs_offset(&ps));
+	data->notify_data.data.string = talloc(mem_ctx, prs_offset(&ps));
 
-	memcpy(data->notify_data.data.string, prs_data_p(&ps), prs_offset(&ps));
+	prs_copy_all_data_out((char *)data->notify_data.data.string, &ps);
 
 	prs_mem_free(&ps);
 }
-- 
cgit