Always null-terminate strings.

Also some string length and sizeof(pointer) corrections.

17 files changed, 82 insertions, 82 deletions

diff --git a/source/lsarpcd/srv_lsa.c b/source/lsarpcd/srv_lsa.c
index fbbeb4233ea..45ddefe592f 100644
--- a/source/lsarpcd/srv_lsa.c
+++ b/source/lsarpcd/srv_lsa.c
@@ -156,7 +156,7 @@ static int make_dom_ref(DOM_R_REF *ref, char *dom_name, DOM_SID *dom_sid)
 		for (num = 0; num < ref->num_ref_doms_1; num++)
 		{
 			fstring domname;
-			unistr2_to_ascii(domname, &ref->ref_dom[num].uni_dom_name, sizeof(domname));
+			unistr2_to_ascii(domname, &ref->ref_dom[num].uni_dom_name, sizeof(domname)-1);
 			if (strequal(domname, dom_name))
 			{	
 				return num;
@@ -217,7 +217,7 @@ static void make_lsa_rid2s(DOM_R_REF *ref,
 		char *dom_name = NULL;
 		uint8 sid_name_use = SID_NAME_UNKNOWN;
 
-		unistr2_to_ascii(find_name, &name[i], sizeof(find_name));
+		unistr2_to_ascii(find_name, &name[i], sizeof(find_name)-1);
 		dom_name = strdup(find_name);
 
 		if (map_domain_name_to_sid(&sid, &dom_name))
diff --git a/source/nmbd/nmbd_processlogon.c b/source/nmbd/nmbd_processlogon.c
index 67678db0694..98ce8a680a0 100644
--- a/source/nmbd/nmbd_processlogon.c
+++ b/source/nmbd/nmbd_processlogon.c
@@ -140,8 +140,8 @@ logons are not enabled.\n", inet_ntoa(p->ip) ));
         q = align2(q, buf);
 
 	/* PDC and domain name */
-        q = ascii_to_unibuf(q, my_name, outbuf+sizeof(outbuf)-q);
-        q = ascii_to_unibuf(q, global_myworkgroup, outbuf+sizeof(outbuf)-q);
+        q = ascii_to_unibuf(q, my_name, outbuf+sizeof(outbuf)-q-2);
+        q = ascii_to_unibuf(q, global_myworkgroup, outbuf+sizeof(outbuf)-q-2);
 
         SIVAL(q, 0, ntversion);
         q += 4;
@@ -204,8 +204,8 @@ reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
 	      fstring ascuser;
 	      fstring asccomp;
 
-	      unibuf_to_ascii(ascuser, uniuser, sizeof(ascuser));
-	      unibuf_to_ascii(asccomp, unicomp, sizeof(asccomp));
+	      unibuf_to_ascii(ascuser, uniuser, sizeof(ascuser)-1);
+	      unibuf_to_ascii(asccomp, unicomp, sizeof(asccomp)-1);
 
 	      DEBUGADD(3,("process_logon_packet: SAMLOGON request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n",
 			  asccomp,inet_ntoa(p->ip), ascuser, reply_name,
@@ -219,9 +219,9 @@ reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
       q += 2;
 
       /* Logon server, trust account, domain */
-      q = ascii_to_unibuf(q, reply_name, outbuf+sizeof(outbuf)-q);
-      q = uni_strncpy(q, uniuser, outbuf+sizeof(outbuf)-q);
-      q = ascii_to_unibuf(q, lp_workgroup(), outbuf+sizeof(outbuf)-q);
+      q = ascii_to_unibuf(q, reply_name, outbuf+sizeof(outbuf)-q-2);
+      q = uni_strncpy(q, uniuser, outbuf+sizeof(outbuf)-q-2);
+      q = ascii_to_unibuf(q, lp_workgroup(), outbuf+sizeof(outbuf)-q-2);
 
       SIVAL(q, 0, ntversion);
       q += 4;
diff --git a/source/rpc_client/cli_lsarpc.c b/source/rpc_client/cli_lsarpc.c
index 21eba6ddb7b..751a84aaaa1 100644
--- a/source/rpc_client/cli_lsarpc.c
+++ b/source/rpc_client/cli_lsarpc.c
@@ -331,8 +331,8 @@ BOOL lsa_lookup_sids(struct cli_state *cli, uint16 fnum,
 
 				if (dom_idx != 0xffffffff)
 				{
-					unistr2_to_ascii(dom_name, &ref.ref_dom[dom_idx].uni_dom_name, sizeof(dom_name));
-					unistr2_to_ascii(name, &t_names.uni_name[i], sizeof(name));
+					unistr2_to_ascii(dom_name, &ref.ref_dom[dom_idx].uni_dom_name, sizeof(dom_name)-1);
+					unistr2_to_ascii(name, &t_names.uni_name[i], sizeof(name)-1);
 					
 					memset(full_name, 0, sizeof(full_name));
 
@@ -427,7 +427,7 @@ BOOL lsa_query_info_pol(struct cli_state *cli, uint16 fnum,
 				{
 					if (r_q.dom.id3.buffer_dom_name != 0)
 					{
-						unistr2_to_ascii(domain_name, &r_q.dom.id3.uni_domain_name, sizeof(domain_name));
+						unistr2_to_ascii(domain_name, &r_q.dom.id3.uni_domain_name, sizeof(fstring)-1);
 					}
 					if (r_q.dom.id3.buffer_dom_sid != 0)
 					{
@@ -441,7 +441,7 @@ BOOL lsa_query_info_pol(struct cli_state *cli, uint16 fnum,
 				{
 					if (r_q.dom.id5.buffer_dom_name != 0)
 					{
-						unistr2_to_ascii(domain_name, &r_q.dom.id5.uni_domain_name, sizeof(domain_name));
+						unistr2_to_ascii(domain_name, &r_q.dom.id5.uni_domain_name, sizeof(fstring)-1);
 					}
 					if (r_q.dom.id5.buffer_dom_sid != 0)
 					{
diff --git a/source/rpc_client/cli_reg.c b/source/rpc_client/cli_reg.c
index 6fe48599d57..166617ff374 100644
--- a/source/rpc_client/cli_reg.c
+++ b/source/rpc_client/cli_reg.c
@@ -306,7 +306,7 @@ BOOL do_reg_query_key(struct cli_state *cli, uint16 fnum, POLICY_HND *hnd,
 			valid_query = True;
 			
 			*class_len      = r_o.hdr_class.uni_max_len;
-			unistr2_to_ascii(class, &r_o.uni_class, sizeof(class));
+			unistr2_to_ascii(class, &r_o.uni_class, sizeof(fstring)-1);
 			*num_subkeys    = r_o.num_subkeys   ;
 			*max_subkeylen  = r_o.max_subkeylen ;
 			*max_subkeysize = r_o.max_subkeysize;
@@ -426,7 +426,7 @@ BOOL do_reg_query_info(struct cli_state *cli, uint16 fnum, POLICY_HND *hnd,
 		{
 			valid_query = True;
 			unistr_to_ascii(type, r_o.uni_type.buffer,
-				MIN(r_o.uni_type.buf_len, sizeof(type)));
+				MIN(r_o.uni_type.buf_len, sizeof(fstring)-1));
 			(*unk_0) = r_o.unknown_0;
 			(*unk_1) = r_o.unknown_1;
 		}
@@ -788,7 +788,7 @@ BOOL do_reg_enum_key(struct cli_state *cli, uint16 fnum, POLICY_HND *hnd,
 			(*unk_1) = r_o.unknown_1;
 			(*unk_2) = r_o.unknown_2;
 			unistr_to_ascii(key_name, r_o.key_name.str.buffer,
-					sizeof(key_name));
+					sizeof(fstring)-1);
 			(*mod_time) = nt_time_to_unix(&r_o.time);
 		}
 	}
@@ -904,7 +904,7 @@ BOOL do_reg_enum_val(struct cli_state *cli, uint16 fnum, POLICY_HND *hnd,
 		{
 			valid_query = True;
 			(*val_type) = r_o.type;
-			unistr2_to_ascii(val_name, &r_o.uni_name, sizeof(val_name));
+			unistr2_to_ascii(val_name, &r_o.uni_name, sizeof(fstring)-1);
 		}
 	}
 
diff --git a/source/rpc_client/cli_samr.c b/source/rpc_client/cli_samr.c
index 2ddc0877a99..6791195e710 100644
--- a/source/rpc_client/cli_samr.c
+++ b/source/rpc_client/cli_samr.c
@@ -585,12 +585,12 @@ BOOL samr_enum_dom_groups(struct cli_state *cli, uint16 fnum,
 				(*sam)[i].acct_desc[0] = 0;
 				if (r_e.sam[i].hdr_grp_name.buffer)
 				{
-					unistr2_to_ascii((*sam)[i].acct_name, &r_e.str[name_idx].uni_grp_name, sizeof((*sam)[i].acct_name));
+					unistr2_to_ascii((*sam)[i].acct_name, &r_e.str[name_idx].uni_grp_name, sizeof((*sam)[i].acct_name)-1);
 					name_idx++;
 				}
 				if (r_e.sam[i].hdr_grp_desc.buffer)
 				{
-					unistr2_to_ascii((*sam)[i].acct_desc, &r_e.str[name_idx].uni_grp_desc, sizeof((*sam)[i].acct_desc));
+					unistr2_to_ascii((*sam)[i].acct_desc, &r_e.str[name_idx].uni_grp_desc, sizeof((*sam)[i].acct_desc)-1);
 					desc_idx++;
 				}
 				DEBUG(5,("samr_enum_dom_groups: idx: %4d rid: %8x acct: %s desc: %s\n",
@@ -678,7 +678,7 @@ BOOL samr_enum_dom_aliases(struct cli_state *cli, uint16 fnum,
 				(*sam)[i].acct_desc[0] = 0;
 				if (r_e.sam[i].hdr_name.buffer)
 				{
-					unistr2_to_ascii((*sam)[i].acct_name, &r_e.uni_grp_name[name_idx], sizeof((*sam)[i].acct_name));
+					unistr2_to_ascii((*sam)[i].acct_name, &r_e.uni_grp_name[name_idx], sizeof((*sam)[i].acct_name)-1);
 					name_idx++;
 				}
 				DEBUG(5,("samr_enum_dom_aliases: idx: %4d rid: %8x acct: %s\n",
@@ -767,7 +767,7 @@ BOOL samr_enum_dom_users(struct cli_state *cli, uint16 fnum,
 				(*sam)[i].acct_desc[0] = 0;
 				if (r_e.sam[i].hdr_name.buffer)
 				{
-					unistr2_to_ascii((*sam)[i].acct_name, &r_e.uni_acct_name[name_idx], sizeof((*sam)[i].acct_name));
+					unistr2_to_ascii((*sam)[i].acct_name, &r_e.uni_acct_name[name_idx], sizeof((*sam)[i].acct_name)-1);
 					name_idx++;
 				}
 				DEBUG(5,("samr_enum_dom_users: idx: %4d rid: %8x acct: %s\n",
@@ -1774,7 +1774,7 @@ BOOL samr_query_lookup_rids(struct cli_state *cli, uint16 fnum,
 
 				for (i = 0; i < r_o.num_names1; i++)
 				{
-					unistr2_to_ascii(names[i], &r_o.uni_name[i], sizeof(names[i]));
+					unistr2_to_ascii(names[i], &r_o.uni_name[i], sizeof(fstring)-1);
 				}
 				for (i = 0; i < r_o.num_types1; i++)
 				{
diff --git a/source/rpc_parse/parse_misc.c b/source/rpc_parse/parse_misc.c
index 04a9ba4544d..12501a5e57b 100644
--- a/source/rpc_parse/parse_misc.c
+++ b/source/rpc_parse/parse_misc.c
@@ -328,7 +328,7 @@ creates a UNISTR structure.
 ********************************************************************/
 void make_unistr(UNISTR *str, char *buf)
 {
-	ascii_to_unistr(str->buffer, buf, sizeof(str->buffer));
+	ascii_to_unistr(str->buffer, buf, sizeof(str->buffer)-1);
 }
 
 /*******************************************************************
diff --git a/source/rpc_parse/parse_reg.c b/source/rpc_parse/parse_reg.c
index 3aa9bbbc2a3..8072ed2a64d 100644
--- a/source/rpc_parse/parse_reg.c
+++ b/source/rpc_parse/parse_reg.c
@@ -771,7 +771,7 @@ void make_reg_r_info(REG_R_INFO *r_r,
 	char buf[512];
 	int len;
 
-	len = ascii_to_unibuf(buf, os_type, sizeof(buf)) - buf;
+	len = ascii_to_unibuf(buf, os_type, sizeof(buf)-2) - buf;
 
 	r_r->ptr1 = 1;
 	r_r->level = level;
diff --git a/source/rpc_parse/parse_rpc.c b/source/rpc_parse/parse_rpc.c
index c4a7e358951..9716b35b78a 100644
--- a/source/rpc_parse/parse_rpc.c
+++ b/source/rpc_parse/parse_rpc.c
@@ -707,9 +707,9 @@ void make_rpc_auth_ntlmssp_resp(RPC_AUTH_NTLMSSP_RESP *rsp,
 
 	if (IS_BITS_SET_ALL(neg_flags, NTLMSSP_NEGOTIATE_UNICODE))
 	{
-		ascii_to_unibuf(rsp->domain, domain, sizeof(rsp->domain));
-		ascii_to_unibuf(rsp->user  , user  , sizeof(rsp->user  ));
-		ascii_to_unibuf(rsp->wks   , wks   , sizeof(rsp->wks   ));
+		ascii_to_unibuf(rsp->domain, domain, sizeof(rsp->domain)-2);
+		ascii_to_unibuf(rsp->user  , user  , sizeof(rsp->user  )-2);
+		ascii_to_unibuf(rsp->wks   , wks   , sizeof(rsp->wks   )-2);
 	}
 	else
 	{
diff --git a/source/rpc_server/srv_lsa.c b/source/rpc_server/srv_lsa.c
index fbbeb4233ea..45ddefe592f 100644
--- a/source/rpc_server/srv_lsa.c
+++ b/source/rpc_server/srv_lsa.c
@@ -156,7 +156,7 @@ static int make_dom_ref(DOM_R_REF *ref, char *dom_name, DOM_SID *dom_sid)
 		for (num = 0; num < ref->num_ref_doms_1; num++)
 		{
 			fstring domname;
-			unistr2_to_ascii(domname, &ref->ref_dom[num].uni_dom_name, sizeof(domname));
+			unistr2_to_ascii(domname, &ref->ref_dom[num].uni_dom_name, sizeof(domname)-1);
 			if (strequal(domname, dom_name))
 			{	
 				return num;
@@ -217,7 +217,7 @@ static void make_lsa_rid2s(DOM_R_REF *ref,
 		char *dom_name = NULL;
 		uint8 sid_name_use = SID_NAME_UNKNOWN;
 
-		unistr2_to_ascii(find_name, &name[i], sizeof(find_name));
+		unistr2_to_ascii(find_name, &name[i], sizeof(find_name)-1);
 		dom_name = strdup(find_name);
 
 		if (map_domain_name_to_sid(&sid, &dom_name))
diff --git a/source/rpc_server/srv_netlog.c b/source/rpc_server/srv_netlog.c
index f34aa502ed2..30c132aa060 100644
--- a/source/rpc_server/srv_netlog.c
+++ b/source/rpc_server/srv_netlog.c
@@ -288,7 +288,7 @@ static void api_net_req_chal( uint16 vuid,
 	/* grab the challenge... */
 	net_io_q_req_chal("", &q_r, data, 0);
 
-	unistr2_to_ascii(mach_acct, &q_r.uni_logon_clnt, sizeof(mach_acct));
+	unistr2_to_ascii(mach_acct, &q_r.uni_logon_clnt, sizeof(mach_acct)-1);
 
 	fstrcpy(mach_name, mach_acct);
 	strlower(mach_name);
@@ -400,7 +400,7 @@ static void api_net_srv_pwset( uint16 vuid,
 		DEBUG(5,("api_net_srv_pwset: %d\n", __LINE__));
 
 		unistr2_to_ascii(mach_acct, &q_a.clnt_id.login.uni_acct_name,
-				 sizeof(mach_acct));
+				 sizeof(mach_acct)-1);
 
 		DEBUG(3,("Server Password Set Wksta:[%s]\n", mach_acct));
 
@@ -674,7 +674,7 @@ static void api_net_sam_logon( uint16 vuid,
 	if (status == 0)
 	{
 		unistr2_to_ascii(nt_username, uni_samlogon_user,
-				 sizeof(nt_username));
+				 sizeof(nt_username)-1);
 
 		DEBUG(3,("User:[%s]\n", nt_username));
 
diff --git a/source/rpc_server/srv_pipe.c b/source/rpc_server/srv_pipe.c
index 07e16c7e5de..e619797f6e1 100644
--- a/source/rpc_server/srv_pipe.c
+++ b/source/rpc_server/srv_pipe.c
@@ -227,13 +227,13 @@ static BOOL api_pipe_ntlmssp_verify(pipes_struct *p)
 	{
 		unibuf_to_ascii(p->user_name, p->ntlmssp_resp.user,
 				MIN(p->ntlmssp_resp.hdr_usr   .str_str_len/2,
-				    sizeof(p->user_name)));
+				    sizeof(p->user_name)-1));
 		unibuf_to_ascii(p->domain   , p->ntlmssp_resp.domain,
 				MIN(p->ntlmssp_resp.hdr_domain.str_str_len/2,
-				    sizeof(p->domain   )));
+				    sizeof(p->domain   )-1));
 		unibuf_to_ascii(p->wks      , p->ntlmssp_resp.wks,
 				MIN(p->ntlmssp_resp.hdr_wks   .str_str_len/2,
-				    sizeof(p->wks      )));
+				    sizeof(p->wks      )-1));
 	}
 	else
 	{
diff --git a/source/rpc_server/srv_reg.c b/source/rpc_server/srv_reg.c
index 52fff8716c1..47ead002272 100644
--- a/source/rpc_server/srv_reg.c
+++ b/source/rpc_server/srv_reg.c
@@ -136,7 +136,7 @@ static void reg_reply_open_entry(REG_Q_OPEN_ENTRY *q_u,
 		status = 0xC000000 | NT_STATUS_TOO_MANY_SECRETS; /* ha ha very droll */
 	}
 
-	unistr2_to_ascii(name, &q_u->uni_name, sizeof(name));
+	unistr2_to_ascii(name, &q_u->uni_name, sizeof(name)-1);
 
 	if (status == 0x0)
 	{
diff --git a/source/rpc_server/srv_samr.c b/source/rpc_server/srv_samr.c
index 7f2b62212ed..449a47e4c94 100644
--- a/source/rpc_server/srv_samr.c
+++ b/source/rpc_server/srv_samr.c
@@ -1440,7 +1440,7 @@ static void samr_reply_lookup_names(SAMR_Q_LOOKUP_NAMES *q_u,
 	{
 		DOM_SID sid;
 		fstring name;
-		unistr2_to_ascii(name, &q_u->uni_name[i], sizeof(name));
+		unistr2_to_ascii(name, &q_u->uni_name[i], sizeof(name)-1);
 
 		status = lookup_name(name, &sid, &(type[i]));
 		if (status == 0x0)
@@ -1489,8 +1489,8 @@ static void samr_reply_chgpasswd_user(SAMR_Q_CHGPASSWD_USER *q_u,
 	fstring user_name;
 	fstring wks;
 
-	unistr2_to_ascii(user_name, &q_u->uni_user_name, sizeof(user_name));
-	unistr2_to_ascii(wks, &q_u->uni_dest_host, sizeof(wks));
+	unistr2_to_ascii(user_name, &q_u->uni_user_name, sizeof(user_name)-1);
+	unistr2_to_ascii(wks, &q_u->uni_dest_host, sizeof(wks)-1);
 
 	DEBUG(5,("samr_chgpasswd_user: user: %s wks: %s\n", user_name, wks));
 
@@ -2024,7 +2024,7 @@ static void samr_reply_create_dom_alias(SAMR_Q_CREATE_DOM_ALIAS *q_u,
 
 	if (status == 0x0)
 	{
-		unistr2_to_ascii(grp.name, &q_u->uni_acct_desc, sizeof(grp.name));
+		unistr2_to_ascii(grp.name, &q_u->uni_acct_desc, sizeof(grp.name)-1);
 		fstrcpy(grp.comment, "");
 		grp.rid = 0xffffffff;
 
@@ -2135,7 +2135,7 @@ static void samr_reply_create_dom_group(SAMR_Q_CREATE_DOM_GROUP *q_u,
 
 	if (status == 0x0)
 	{
-		unistr2_to_ascii(grp.name, &q_u->uni_acct_desc, sizeof(grp.name));
+		unistr2_to_ascii(grp.name, &q_u->uni_acct_desc, sizeof(grp.name)-1);
 		fstrcpy(grp.comment, "");
 		grp.rid = 0xffffffff;
 		grp.attr = 0x07;
@@ -2302,7 +2302,7 @@ static void api_samr_unknown_32( uint16 vuid, prs_struct *data, prs_struct *rdat
 	   reply if the account already exists...
 	 */
 
-	unistr2_to_ascii(mach_acct, &q_u.uni_mach_acct, sizeof(mach_acct));
+	unistr2_to_ascii(mach_acct, &q_u.uni_mach_acct, sizeof(mach_acct)-1);
 
 	become_root(True);
 	sam_pass = getsam21pwntnam(mach_acct);
diff --git a/source/rpc_server/srv_svcctl.c b/source/rpc_server/srv_svcctl.c
index cf6ab5a0e10..56a0749776c 100644
--- a/source/rpc_server/srv_svcctl.c
+++ b/source/rpc_server/srv_svcctl.c
@@ -93,7 +93,7 @@ static void svc_reply_open_service(SVC_Q_OPEN_SERVICE *q_u,
 		status = 0xC000000 | NT_STATUS_TOO_MANY_SECRETS; /* ha ha very droll */
 	}
 
-	unistr2_to_ascii(name, &q_u->uni_svc_name, sizeof(name));
+	unistr2_to_ascii(name, &q_u->uni_svc_name, sizeof(name)-1);
 
 	if (status == 0x0)
 	{
@@ -143,7 +143,7 @@ static void svc_reply_open_sc_man(SVC_Q_OPEN_SC_MAN *q_u,
 		status = 0xC000000 | NT_STATUS_TOO_MANY_SECRETS; /* ha ha very droll */
 	}
 
-	unistr2_to_ascii(name, &q_u->uni_srv_name, sizeof(name));
+	unistr2_to_ascii(name, &q_u->uni_srv_name, sizeof(name)-1);
 
 	if (status == 0x0)
 	{
diff --git a/source/rpcclient/cmd_svcctl.c b/source/rpcclient/cmd_svcctl.c
index 280eea68de3..ac3834fb163 100644
--- a/source/rpcclient/cmd_svcctl.c
+++ b/source/rpcclient/cmd_svcctl.c
@@ -105,7 +105,7 @@ void cmd_svc_enum(struct client_info *info)
 		uint32 svc_buf_size = 0x800;
 
 		unistr_to_ascii(svc_name, svcs[i].uni_srvc_name.buffer,
-				sizeof(svc_name));
+				sizeof(svc_name)-1);
 
 		res2 = res2 ? svc_open_service(smb_cli, fnum,
 		                               &sc_man_pol,
diff --git a/source/rpcclient/display.c b/source/rpcclient/display.c
index 3432932686b..0bfed9eba33 100644
--- a/source/rpcclient/display.c
+++ b/source/rpcclient/display.c
@@ -192,8 +192,8 @@ void display_srv_info_101(FILE *out_hnd, enum action_type action,
 			fstring name;
 			fstring comment;
 
-			unistr2_to_ascii(name, &sv101->uni_name, sizeof(name));
-			unistr2_to_ascii(comment, &sv101->uni_comment, sizeof(comment));
+			unistr2_to_ascii(name, &sv101->uni_name, sizeof(name)-1);
+			unistr2_to_ascii(comment, &sv101->uni_comment, sizeof(comment)-1);
 
 			display_server(out_hnd, action, name, sv101->srv_type, comment);
 
@@ -234,10 +234,10 @@ void display_srv_info_102(FILE *out_hnd, enum action_type action,SRV_INFO_102 *s
 			fstring comment;
 			fstring usr_path;
 
-			unistr2_to_ascii(name, &sv102->uni_name, sizeof(name));
-			unistr2_to_ascii(comment, &sv102->uni_comment, sizeof(comment));
+			unistr2_to_ascii(name, &sv102->uni_name, sizeof(name)-1);
+			unistr2_to_ascii(comment, &sv102->uni_comment, sizeof(comment)-1);
 			unistr2_to_ascii(usr_path, &sv102->uni_usr_path,
-					 sizeof(usr_path));
+					 sizeof(usr_path)-1);
 
 			display_server(out_hnd, action, name, sv102->srv_type, comment);
 
@@ -348,8 +348,8 @@ void display_conn_info_1(FILE *out_hnd, enum action_type action,
 			fstring usr_name;
 			fstring net_name;
 
-			unistr2_to_ascii(usr_name, &str1->uni_usr_name, sizeof(usr_name));
-			unistr2_to_ascii(net_name, &str1->uni_net_name, sizeof(net_name));
+			unistr2_to_ascii(usr_name, &str1->uni_usr_name, sizeof(usr_name)-1);
+			unistr2_to_ascii(net_name, &str1->uni_net_name, sizeof(net_name)-1);
 
 			fprintf(out_hnd, "\tid       :\t%d\n", info1->id);
 			fprintf(out_hnd, "\ttype     :\t%s\n", get_share_type_str(info1->type));
@@ -504,8 +504,8 @@ void display_share_info_1(FILE *out_hnd, enum action_type action,
 			fstring remark  ;
 			fstring net_name;
 
-			unistr2_to_ascii(net_name, &str1->uni_netname, sizeof(net_name));
-			unistr2_to_ascii(remark, &str1->uni_remark, sizeof(remark));
+			unistr2_to_ascii(net_name, &str1->uni_netname, sizeof(net_name)-1);
+			unistr2_to_ascii(remark, &str1->uni_remark, sizeof(remark)-1);
 
 			display_share(out_hnd, action, net_name, info1->type, remark);
 
@@ -546,10 +546,10 @@ void display_share_info_2(FILE *out_hnd, enum action_type action,
 			fstring path    ;
 			fstring passwd  ;
 
-			unistr2_to_ascii(net_name, &str2->uni_netname, sizeof(net_name));
-			unistr2_to_ascii(remark, &str2->uni_remark, sizeof(remark));
-			unistr2_to_ascii(path, &str2->uni_path, sizeof(path));
-			unistr2_to_ascii(passwd, &str2->uni_passwd, sizeof(passwd));
+			unistr2_to_ascii(net_name, &str2->uni_netname, sizeof(net_name)-1);
+			unistr2_to_ascii(remark, &str2->uni_remark, sizeof(remark)-1);
+			unistr2_to_ascii(path, &str2->uni_path, sizeof(path)-1);
+			unistr2_to_ascii(passwd, &str2->uni_passwd, sizeof(passwd)-1);
 
 			display_share2(out_hnd, action, net_name, info2->type, remark,
 			                                      info2->perms, info2->max_uses, info2->num_uses,
@@ -700,9 +700,9 @@ void display_file_info_3(FILE *out_hnd, enum action_type action,
 			fstring user_name;
 
 			unistr2_to_ascii(path_name, &str3->uni_path_name,
-					 sizeof(path_name));
+					 sizeof(path_name)-1);
 			unistr2_to_ascii(user_name, &str3->uni_user_name,
-					 sizeof(user_name));
+					 sizeof(user_name)-1);
 
 			fprintf(out_hnd, "\tid       :\t%d\n", info3->id);
 			fprintf(out_hnd, "\tperms    :\t%s\n", get_file_mode_str(info3->perms));
@@ -1153,34 +1153,34 @@ void display_sam_user_info_21(FILE *out_hnd, enum action_type action, SAM_USER_I
 		{
 			fstring temp;
 
-			unistr2_to_ascii(temp, &usr->uni_user_name, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_user_name, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tUser Name   :\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_full_name, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_full_name, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tFull Name   :\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_home_dir, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_home_dir, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tHome Drive  :\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_dir_drive, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_dir_drive, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tDir Drive   :\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_profile_path, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_profile_path, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tProfile Path:\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_logon_script, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_logon_script, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tLogon Script:\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_acct_desc, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_acct_desc, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tDescription :\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_workstations, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_workstations, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tWorkstations:\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_unknown_str, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_unknown_str, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tUnknown Str :\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &usr->uni_munged_dial, sizeof(temp));
+			unistr2_to_ascii(temp, &usr->uni_munged_dial, sizeof(temp)-1);
 			fprintf(out_hnd, "\t\tRemote Dial :\t%s\n", temp);
 
 			fprintf(out_hnd, "\t\tLogon Time               :\t%s\n", http_timestring(nt_time_to_unix(&(usr->logon_time           ))));
@@ -1479,7 +1479,7 @@ static void print_reg_value(FILE *out_hnd, char *val_name, uint32 val_type, BUFF
 		case 0x01: /* unistr */
 		{
 			unistr_to_ascii(valstr, value->buffer,
-					MIN(value->buf_len, sizeof(valstr)));
+					MIN(value->buf_len, sizeof(valstr)-1));
 			fprintf(out_hnd,"\t%s:\t%s:\t%s\n", val_name, type, valstr);
 			break;
 		}
@@ -1508,7 +1508,7 @@ static void print_reg_value(FILE *out_hnd, char *val_name, uint32 val_type, BUFF
 
 		case 0x07: /* multiunistr */
 		{
-			buffer2_to_multistr(valstr, value, sizeof(valstr));
+			buffer2_to_multistr(valstr, value, sizeof(valstr)-1);
 			fprintf(out_hnd,"\t%s:\t%s:\t%s\n", val_name, type, valstr);
 			break;
 		}
@@ -1597,7 +1597,7 @@ void display_query_svc_cfg(FILE *out_hnd, enum action_type action,
 		{
 			fstring service;
 
-			unistr2_to_ascii(service, &cfg->uni_display_name, sizeof(service));
+			unistr2_to_ascii(service, &cfg->uni_display_name, sizeof(service)-1);
 			fprintf(out_hnd, "\tService:\t%s\n", service);
 			fprintf(out_hnd, "\t-------\n");
 			break;
@@ -1606,16 +1606,16 @@ void display_query_svc_cfg(FILE *out_hnd, enum action_type action,
 		{
 			fstring temp;
 
-			unistr2_to_ascii(temp, &cfg->uni_bin_path_name, sizeof(temp));
+			unistr2_to_ascii(temp, &cfg->uni_bin_path_name, sizeof(temp)-1);
 			fprintf(out_hnd, "\tPath:\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &cfg->uni_load_order_grp, sizeof(temp));
+			unistr2_to_ascii(temp, &cfg->uni_load_order_grp, sizeof(temp)-1);
 			fprintf(out_hnd, "\tLoad Order:\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &cfg->uni_dependencies, sizeof(temp));
+			unistr2_to_ascii(temp, &cfg->uni_dependencies, sizeof(temp)-1);
 			fprintf(out_hnd, "\tDependencies:\t%s\n", temp);
 
-			unistr2_to_ascii(temp, &cfg->uni_service_start_name, sizeof(temp));
+			unistr2_to_ascii(temp, &cfg->uni_service_start_name, sizeof(temp)-1);
 			fprintf(out_hnd, "\tService Start:\t%s\n", temp);
 
 			fprintf(out_hnd, "\tService Type:\t%d\n", cfg->service_type);
@@ -1649,11 +1649,11 @@ void display_svc_info(FILE *out_hnd, enum action_type action, ENUM_SRVC_STATUS *
 			fstring name;
 
 			unistr_to_ascii(name, svc->uni_srvc_name.buffer,
-					sizeof(name)); /* service name */
+					sizeof(name)-1); /* service name */
 			fprintf(out_hnd, "\t%s:", name);
 
 			unistr_to_ascii(name, svc->uni_disp_name.buffer,
-					sizeof(name)); /* display name */
+					sizeof(name)-1); /* display name */
 			fprintf(out_hnd, "\t%s\n", name);
 			break;
 		}
diff --git a/source/smbd/trans2.c b/source/smbd/trans2.c
index 1bfcaa5f121..f041393dabc 100644
--- a/source/smbd/trans2.c
+++ b/source/smbd/trans2.c
@@ -1121,7 +1121,7 @@ static int call_trans2qfsinfo(connection_struct *conn,
 #endif /* Old code. */
       SIVAL(pdata,4,128); /* Max filename component length */
       SIVAL(pdata,8,2*strlen(fstype));
-      ascii_to_unibuf(pdata+12, fstype, 1024-12);
+      ascii_to_unibuf(pdata+12, fstype, 1024-2-12);
       SSVAL(outbuf,smb_flg2,SVAL(outbuf,smb_flg2)|FLAGS2_UNICODE_STRINGS);
       break;
     case SMB_QUERY_FS_LABEL_INFO:
@@ -1148,7 +1148,7 @@ static int call_trans2qfsinfo(connection_struct *conn,
       } else {
 	      data_len = 18 + 2*strlen(vname);
 	      SIVAL(pdata,12,strlen(vname)*2);
-	      ascii_to_unibuf(pdata+18, vname, 1024-18);
+	      ascii_to_unibuf(pdata+18, vname, 1024-2-18);
       }
 
       DEBUG(5,("call_trans2qfsinfo : SMB_QUERY_FS_VOLUME_INFO namelen = %d, vol = %s\n", 
@@ -1405,7 +1405,7 @@ static int call_trans2qfilepathinfo(connection_struct *conn,
             *short_name = '\0';
         }
         strupper(short_name);
-        data_end = ascii_to_unibuf(pdata + 4, short_name, 1024-4);
+        data_end = ascii_to_unibuf(pdata + 4, short_name, 1024-2-4);
         data_size = data_end - pdata;
         SIVAL(pdata,0,2*(data_size-4));
       }