Updates to sam_skel from metze, add sam/group.c and add a DEBUG() to the

SAM_ASSERT if we are not going to crash.
(This used to be commit f91fcb166107e45ffb3de95a3da65c79992341eb)

2 files changed, 198 insertions, 2 deletions

diff --git a/source3/include/sam.h b/source3/include/sam.h
index 53d56a2a80..afa7e55c65 100644
--- a/source3/include/sam.h
+++ b/source3/include/sam.h
@@ -30,8 +30,11 @@
 #define SAM_ASSERT(x) SMB_ASSERT(x)
 #else
 #define SAM_ASSERT(x) while (0) { \
-	if (!(x)) return NT_STATUS_FAIL_CHECK;\
-        }
+	if (!(x)) {
+		DEBUG(0, ("SAM_ASSERT failed!\n"))
+		return NT_STATUS_FAIL_CHECK;\
+	} \
+    }
 #endif
 
 
diff --git a/source3/sam/group.c b/source3/sam/group.c
new file mode 100644
index 0000000000..7e4bcc1425
--- /dev/null
+++ b/source3/sam/group.c
@@ -0,0 +1,193 @@
+/* 
+   Unix SMB/CIFS implementation.
+   SAM_GROUP_HANDLE /SAM_GROUP_ENUM helpers
+   
+   Copyright (C) Stefan (metze) Metzmacher 	2002
+      
+   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"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_SAM
+
+/************************************************************
+ Fill the SAM_GROUP_HANDLE with default values.
+ ***********************************************************/
+
+static void sam_fill_default_group(SAM_GROUP_HANDLE *group)
+{
+	ZERO_STRUCT(group->private); /* Don't touch the talloc context */
+
+}	
+
+static void destroy_sam_group_handle_talloc(SAM_GROUP_HANDLE **group) 
+{
+	if (*group) {
+
+		talloc_destroy((*group)->mem_ctx);
+		*group = NULL;
+	}
+}
+
+
+/**********************************************************************
+ Alloc memory and initialises a SAM_GROUP_HANDLE on supplied mem_ctx.
+***********************************************************************/
+
+NTSTATUS sam_init_group_talloc(TALLOC_CTX *mem_ctx, SAM_GROUP_HANDLE **group)
+{
+	SMB_ASSERT(*group != NULL);
+
+	if (!mem_ctx) {
+		DEBUG(0,("sam_init_group_talloc: mem_ctx was NULL!\n"));
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	*group=(SAM_GROUP_HANDLE *)talloc(mem_ctx, sizeof(SAM_GROUP_HANDLE));
+
+	if (*group==NULL) {
+		DEBUG(0,("sam_init_group_talloc: error while allocating memory\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	(*group)->mem_ctx = mem_ctx;
+
+	(*group)->free_fn = NULL;
+
+	sam_fill_default_group(*group);
+	
+	return NT_STATUS_OK;
+}
+
+
+/*************************************************************
+ Alloc memory and initialises a struct SAM_GROUP_HANDLE.
+ ************************************************************/
+
+NTSTATUS sam_init_group(SAM_GROUP_HANDLE **group)
+{
+	TALLOC_CTX *mem_ctx;
+	NTSTATUS nt_status;
+	
+	mem_ctx = talloc_init_named("sam internal SAM_GROUP_HANDLE allocation");
+
+	if (!mem_ctx) {
+		DEBUG(0,("sam_init_group: error while doing talloc_init()\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (!NT_STATUS_IS_OK(nt_status = sam_init_group_talloc(mem_ctx, group))) {
+		talloc_destroy(mem_ctx);
+		return nt_status;
+	}
+	
+	(*group)->free_fn = destroy_sam_group_handle_talloc;
+
+	return NT_STATUS_OK;
+}
+
+
+/************************************************************
+ Reset the SAM_GROUP_HANDLE.
+ ***********************************************************/
+
+NTSTATUS sam_reset_group(SAM_GROUP_HANDLE *group)
+{
+	SMB_ASSERT(group != NULL);
+
+	sam_fill_default_group(group);
+
+	return NT_STATUS_OK;
+}
+
+
+/************************************************************
+ Free the SAM_GROUP_HANDLE and the member pointers.
+ ***********************************************************/
+
+NTSTATUS sam_free_group(SAM_ACCOUNT_HANDLE **group)
+{
+	SMB_ASSERT(*group != NULL);
+
+	if ((*group)->free_fn) {
+		(*group)->free_fn(group);
+	}
+
+	return NT_STATUS_OK;	
+}
+
+
+/**********************************************************
+ Encode the group control bits into a string.
+ length = length of string to encode into (including terminating
+ null). length *MUST BE MORE THAN 2* !
+ **********************************************************/
+
+char *sam_encode_acct_ctrl(uint16 group_ctrl, size_t length)
+{
+	static fstring group_str;
+	size_t i = 0;
+
+	group_str[i++] = '[';
+
+	if (group_ctrl & GCB_LOCAL_GROUP )	group_str[i++] = 'L';
+	if (group_ctrl & GCB_GLOBAL_GROUP )	group_str[i++] = 'G';
+
+	for ( ; i < length - 2 ; i++ )
+		group_str[i] = ' ';
+
+	i = length - 2;
+	group_str[i++] = ']';
+	group_str[i++] = '\0';
+
+	return group_str;
+}     
+
+/**********************************************************
+ Decode the group control bits from a string.
+ **********************************************************/
+
+uint16 sam_decode_group_ctrl(const char *p)
+{
+	uint16 group_ctrl = 0;
+	BOOL finished = False;
+
+	/*
+	 * Check if the account type bits have been encoded after the
+	 * NT password (in the form [NDHTUWSLXI]).
+	 */
+
+	if (*p != '[')
+		return 0;
+
+	for (p++; *p && !finished; p++) {
+		switch (*p) {
+			case 'L': { group_ctrl |= GCB_LOCAL_GROUP; break; /* 'L'ocal Aliases Group. */ } 
+			case 'G': { group_ctrl |= GCB_GLOBAL_GROUP; break; /* 'G'lobal Domain Group. */ } 
+			
+		        case ' ': { break; }
+			case ':':
+			case '\n':
+			case '\0': 
+			case ']':
+			default:  { finished = True; }
+		}
+	}
+
+	return group_ctrl;
+}
+