From: Jelmer Vernooij <jelmer@samba.org>
Date: Thu, 29 Dec 2005 01:43:11 +0000 (+0000)
Subject: r12558: Support [flag(NULLTERM)] on [charset()] arrays
X-Git-Tag: samba-4.0.0alpha6~801^3~7678
X-Git-Url: http://git.samba.org/?p=samba.git;a=commitdiff_plain;h=b9fa7bc48ec3b402722b64b3dbd97042cb2bfd09

r12558: Support [flag(NULLTERM)] on [charset()] arrays
(This used to be commit 2e5a6eb219feab3208f63d727340a852bfdb0b3f)
---

diff --git a/source4/librpc/ndr/ndr_string.c b/source4/librpc/ndr/ndr_string.c
index 96f48edda95..fcc529cbd10 100644
--- a/source4/librpc/ndr/ndr_string.c
+++ b/source4/librpc/ndr/ndr_string.c
@@ -623,6 +623,8 @@ NTSTATUS ndr_check_string_terminator(struct ndr_pull *ndr, uint32_t count, uint3
 
 	for (i = 0; i < element_size; i++) {
 		 if (ndr->data[ndr->offset+i] != 0) {
+			ndr_pull_restore(ndr, &save_offset);
+
 			return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE, "String terminator not present or outside string boundaries");
 		 }
 	}
@@ -639,7 +641,15 @@ NTSTATUS ndr_pull_charset(struct ndr_pull *ndr, int ndr_flags, const char **var,
 		*var = talloc_strdup(ndr->current_mem_ctx, "");
 		return NT_STATUS_OK;
 	}
+
 	NDR_PULL_NEED_BYTES(ndr, length*byte_mul);
+
+	if (ndr->flags & LIBNDR_FLAG_STR_NULLTERM) {
+		/* Explicitly ignore the return value here. An array that 
+		 * is not zero-terminated is considered a warning only, not fatal */
+		ndr_check_string_terminator(ndr, length, byte_mul);
+	}
+	
 	ret = convert_string_talloc(ndr->current_mem_ctx,
 				    chset, CH_UNIX, 
 				    ndr->data+ndr->offset, 
diff --git a/source4/torture/config.mk b/source4/torture/config.mk
index ec79675f650..2d934fa009d 100644
--- a/source4/torture/config.mk
+++ b/source4/torture/config.mk
@@ -108,7 +108,8 @@ OBJ_FILES = \
 		rpc/bind.o \
 		rpc/dssetup.o \
 		rpc/alter_context.o \
-		rpc/bench.o
+		rpc/bench.o \
+		rpc/ndr.o
 REQUIRED_SUBSYSTEMS = \
 		NDR_ALL RPC_NDR_UNIXINFO RPC_NDR_SAMR RPC_NDR_WINREG RPC_NDR_INITSHUTDOWN \
 		RPC_NDR_OXIDRESOLVER RPC_NDR_EVENTLOG RPC_NDR_ECHO RPC_NDR_SVCCTL \
diff --git a/source4/torture/rpc/ndr.c b/source4/torture/rpc/ndr.c
new file mode 100644
index 00000000000..6dbcf3e7950
--- /dev/null
+++ b/source4/torture/rpc/ndr.c
@@ -0,0 +1,97 @@
+/* 
+   Unix SMB/CIFS implementation.
+   test suite for basic ndr functions
+
+   Copyright (C) Jelmer Vernooij 2005
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+BOOL test_check_string_terminator(TALLOC_CTX *mem_ctx)
+{
+	struct ndr_pull *ndr;
+	DATA_BLOB blob;
+
+	/* Simple test */
+	blob = strhex_to_data_blob("0000");
+	
+	ndr = ndr_pull_init_blob(&blob, mem_ctx);
+
+	if (NT_STATUS_IS_ERR(ndr_check_string_terminator(ndr, 1, 2))) {
+		DEBUG(0, ("simple check_string_terminator test failed\n"));
+		return False;
+	}
+
+	if (ndr->offset != 0) {
+		DEBUG(0, ("check_string_terminator did not reset offset\n"));
+		return False;
+	}
+
+	if (NT_STATUS_IS_OK(ndr_check_string_terminator(ndr, 1, 3))) {
+		DEBUG(0, ("check_string_terminator checked beyond string boundaries\n"));
+		return False;
+	}
+
+	if (ndr->offset != 0) {
+		DEBUG(0, ("check_string_terminator did not reset offset\n"));
+		return False;
+	}
+
+	talloc_free(ndr);
+
+	blob = strhex_to_data_blob("11220000");
+	ndr = ndr_pull_init_blob(&blob, mem_ctx);
+
+	if (NT_STATUS_IS_ERR(ndr_check_string_terminator(ndr, 4, 1))) {
+		DEBUG(0, ("check_string_terminator failed to recognize terminator\n"));
+		return False;
+	}
+
+	if (NT_STATUS_IS_ERR(ndr_check_string_terminator(ndr, 3, 1))) {
+		DEBUG(0, ("check_string_terminator failed to recognize terminator\n"));
+		return False;
+	}
+
+	if (NT_STATUS_IS_OK(ndr_check_string_terminator(ndr, 2, 1))) {
+		DEBUG(0, ("check_string_terminator erroneously reported terminator\n"));
+		return False;
+	}
+
+	if (ndr->offset != 0) {
+		DEBUG(0, ("check_string_terminator did not reset offset\n"));
+		return False;
+	}
+
+	talloc_free(ndr);
+
+	return True;
+}
+
+BOOL torture_rpc_ndr(void)
+{
+    NTSTATUS status;
+	TALLOC_CTX *mem_ctx;
+	BOOL ret = True;
+
+	mem_ctx = talloc_init("torture_rpc_mgmt");
+
+	ret &= test_check_string_terminator(mem_ctx);
+
+	talloc_free(mem_ctx);
+
+	return ret;
+}
diff --git a/source4/torture/torture.c b/source4/torture/torture.c
index a6ec030c1d6..1b591c6bb84 100644
--- a/source4/torture/torture.c
+++ b/source4/torture/torture.c
@@ -2305,6 +2305,7 @@ static struct {
         {"RPC-ALTERCONTEXT", torture_rpc_alter_context, 0},
         {"RPC-JOIN", torture_rpc_join, 0},
         {"RPC-DSSYNC", torture_rpc_dssync, 0},
+		{"RPC-NDR", torture_rpc_ndr, 0},
 
 	/* local (no server) testers */
 	{"LOCAL-NTLMSSP", torture_ntlmssp_self_check, 0},