1 files changed, 285 insertions, 0 deletions
diff --git a/source3/groupdb/groupfile.c b/source3/groupdb/groupfile.c
new file mode 100644
index 0000000000..4502b190aa
--- /dev/null
+++ b/source3/groupdb/groupfile.c
@@ -0,0 +1,285 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * SMB parameters and setup
+ * Copyright (C) Andrew Tridgell 1992-1998 Modified by Jeremy Allison 1995.
+ * 
+ * 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"
+
+#ifdef USE_SMBPASS_DB
+
+static int gp_file_lock_depth = 0;
+
+static char s_readbuf[1024];
+
+/***************************************************************
+ Start to enumerate the grppasswd list. Returns a void pointer
+ to ensure no modification outside this module.
+****************************************************************/
+
+static void *startgrpfilepwent(BOOL update)
+{
+	return startfilepwent(lp_smb_group_file(),
+	                      s_readbuf, sizeof(s_readbuf),
+	                      &gp_file_lock_depth, update);
+}
+
+/***************************************************************
+ End enumeration of the grppasswd list.
+****************************************************************/
+
+static void endgrpfilepwent(void *vp)
+{
+	endfilepwent(vp, &gp_file_lock_depth);
+}
+
+/*************************************************************************
+ Return the current position in the grppasswd list as an SMB_BIG_UINT.
+ This must be treated as an opaque token.
+*************************************************************************/
+static SMB_BIG_UINT getgrpfilepwpos(void *vp)
+{
+	return getfilepwpos(vp);
+}
+
+/*************************************************************************
+ Set the current position in the grppasswd list from an SMB_BIG_UINT.
+ This must be treated as an opaque token.
+*************************************************************************/
+static BOOL setgrpfilepwpos(void *vp, SMB_BIG_UINT tok)
+{
+	return setfilepwpos(vp, tok);
+}
+
+static BOOL make_group_line(char *p, int max_len,
+				DOMAIN_GRP *grp,
+				DOMAIN_GRP_MEMBER **mem, int *num_mem)
+{
+	int i;
+	int len;
+	len = slprintf(p, max_len-1, "%s:%s:%d:", grp->name, grp->comment, grp->rid);
+
+	if (len == -1)
+	{
+		DEBUG(0,("make_group_line: cannot create entry\n"));
+		return False;
+	}
+
+	p += len;
+	max_len -= len;
+
+	if (mem == NULL || num_mem == NULL)
+	{
+		return True;
+	}
+
+	for (i = 0; i < (*num_mem); i++)
+	{
+		len = strlen((*mem)[i].name);
+		p = safe_strcpy(p, (*mem)[i].name, max_len); 
+
+		if (p == NULL)
+		{
+			DEBUG(0, ("make_group_line: out of space for groups!\n"));
+			return False;
+		}
+
+		max_len -= len;
+
+		if (i != (*num_mem)-1)
+		{
+			*p = ',';
+			p++;
+			max_len--;
+		}
+	}
+
+	return True;
+}
+
+/*************************************************************************
+ Routine to return the next entry in the smbdomaingroup list.
+ *************************************************************************/
+static char *get_group_members(char *p, int *num_mem, DOMAIN_GRP_MEMBER **members)
+{
+	fstring name;
+
+	if (num_mem == NULL || members == NULL)
+	{
+		return NULL;
+	}
+
+	(*num_mem) = 0;
+	(*members) = NULL;
+
+	while (next_token(&p, name, ",", sizeof(fstring)))
+	{
+		DOMAIN_GRP_MEMBER *mbrs;
+		
+		mbrs = Realloc((*members), ((*num_mem)+1) * sizeof(DOMAIN_GRP_MEMBER));
+		if (mbrs == NULL) {
+			SAFE_FREE(*members);
+			return NULL;
+		}
+		else (*members) = mbrs;
+		fstrcpy((*members)[(*num_mem)].name, name);
+		(*members)[(*num_mem)].attr = 0x07;
+		(*num_mem)++;
+	}
+	return p;
+}
+
+/*************************************************************************
+ Routine to return the next entry in the smbdomaingroup list.
+ *************************************************************************/
+static DOMAIN_GRP *getgrpfilepwent(void *vp, DOMAIN_GRP_MEMBER **mem, int *num_mem)
+{
+	/* Static buffers we will return. */
+	static DOMAIN_GRP gp_buf;
+
+	int gidval;
+
+	pstring linebuf;
+	char  *p;
+	size_t            linebuf_len;
+
+	gpdb_init_grp(&gp_buf);
+
+	/*
+	 * Scan the file, a line at a time and check if the name matches.
+	 */
+	while ((linebuf_len = getfileline(vp, linebuf, sizeof(linebuf))) > 0)
+	{
+		/* get group name */
+
+		p = strncpyn(gp_buf.name, linebuf, sizeof(gp_buf.name), ':');
+		if (p == NULL)
+		{
+			DEBUG(0, ("getgrpfilepwent: malformed group entry (no :)\n"));
+			continue;
+		}
+
+		/* Go past ':' */
+		p++;
+
+		/* get group comment */
+
+		p = strncpyn(gp_buf.comment, p, sizeof(gp_buf.comment), ':');
+		if (p == NULL)
+		{
+			DEBUG(0, ("getgrpfilepwent: malformed group entry (no :)\n"));
+			continue;
+		}
+
+		/* Go past ':' */
+		p++;
+
+		/* Get group gid. */
+
+		p = Atoic(p, &gidval, ":");
+
+		if (p == NULL)
+		{
+			DEBUG(0, ("getgrpfilepwent: malformed group entry (no : after uid)\n"));
+			continue;
+		}
+
+		/* Go past ':' */
+		p++;
+
+		/* now get the user's groups.  there are a maximum of 32 */
+
+		if (mem != NULL && num_mem != NULL)
+		{
+			(*mem) = NULL;
+			(*num_mem) = 0;
+
+			p = get_group_members(p, num_mem, mem);
+			if (p == NULL)
+			{
+				DEBUG(0, ("getgrpfilepwent: malformed group entry (no : after members)\n"));
+			}
+		}
+
+		/* ok, set up the static data structure and return it */
+
+		gp_buf.rid     = pwdb_gid_to_group_rid((gid_t)gidval);
+		gp_buf.attr    = 0x07;
+
+		make_group_line(linebuf, sizeof(linebuf), &gp_buf, mem, num_mem);
+		DEBUG(10,("line: '%s'\n", linebuf));
+
+		return &gp_buf;
+	}
+
+	DEBUG(5,("getgrpfilepwent: end of file reached.\n"));
+	return NULL;
+}
+
+/************************************************************************
+ Routine to add an entry to the grppasswd file.
+*************************************************************************/
+
+static BOOL add_grpfilegrp_entry(DOMAIN_GRP *newgrp)
+{
+	DEBUG(0, ("add_grpfilegrp_entry: NOT IMPLEMENTED\n"));
+	return False;
+}
+
+/************************************************************************
+ Routine to search the grppasswd file for an entry matching the groupname.
+ and then modify its group entry. We can't use the startgrppwent()/
+ getgrppwent()/endgrppwent() interfaces here as we depend on looking
+ in the actual file to decide how much room we have to write data.
+ override = False, normal
+ override = True, override XXXXXXXX'd out group or NO PASS
+************************************************************************/
+
+static BOOL mod_grpfilegrp_entry(DOMAIN_GRP* grp)
+{
+	DEBUG(0, ("mod_grpfilegrp_entry: NOT IMPLEMENTED\n"));
+	return False;
+}
+
+
+static struct groupdb_ops file_ops =
+{
+	startgrpfilepwent,
+	endgrpfilepwent,
+	getgrpfilepwpos,
+	setgrpfilepwpos,
+
+	iterate_getgroupnam,          /* In groupdb.c */
+	iterate_getgroupgid,          /* In groupdb.c */
+	iterate_getgrouprid,          /* In groupdb.c */
+	getgrpfilepwent,
+
+	add_grpfilegrp_entry,
+	mod_grpfilegrp_entry,
+
+	iterate_getusergroupsnam      /* in groupdb.c */
+};
+
+struct groupdb_ops *file_initialise_group_db(void)
+{    
+	return &file_ops;
+}
+
+#else
+ /* Do *NOT* make this function static. It breaks the compile on gcc. JRA */
+ void grppass_dummy_function(void) { } /* stop some compilers complaining */
+#endif /* USE_SMBPASS_DB */