Adding Andrews buffer overflow fixes into the main branch.

Jeremy (jallison@whistle.com)
(This used to be commit e7eb1f044d3101679dc7a118820ea5efe0cd837c)

10 files changed, 181 insertions, 139 deletions

diff --git a/source3/smbd/chgpasswd.c b/source3/smbd/chgpasswd.c
index 6063f2aac8..bed81138b2 100644
--- a/source3/smbd/chgpasswd.c
+++ b/source3/smbd/chgpasswd.c
@@ -212,8 +212,8 @@ static int expect(int master,char *expected,char *buf)
 
     {
       pstring s1,s2;
-      strcpy(s1,buf);
-      strcpy(s2,expected);
+      pstrcpy(s1,buf);
+      pstrcpy(s2,expected);
       if (do_match(s1, s2, False))
 	return(True);
     }
@@ -364,11 +364,11 @@ BOOL chgpasswd(char *name,char *oldpass,char *newpass)
     }
 
 #if (defined(PASSWD_PROGRAM) && defined(PASSWD_CHAT))
-  strcpy(passwordprogram,PASSWD_PROGRAM);
-  strcpy(chatsequence,PASSWD_CHAT);
+  pstrcpy(passwordprogram,PASSWD_PROGRAM);
+  pstrcpy(chatsequence,PASSWD_CHAT);
 #else
-  strcpy(passwordprogram,lp_passwd_program());
-  strcpy(chatsequence,lp_passwd_chat());
+  pstrcpy(passwordprogram,lp_passwd_program());
+  pstrcpy(chatsequence,lp_passwd_chat());
 #endif
 
   if (!*chatsequence) {
diff --git a/source3/smbd/dir.c b/source3/smbd/dir.c
index 06ee6ae8ed..567bc14424 100644
--- a/source3/smbd/dir.c
+++ b/source3/smbd/dir.c
@@ -461,7 +461,7 @@ BOOL get_dir_entry(int cnum,char *mask,int dirtype,char *fname,int *size,int *mo
       
       matched = False;
 
-      strcpy(filename,dname);      
+      pstrcpy(filename,dname);      
 
       if ((strcmp(filename,mask) == 0) ||
 	  (name_map_mangle(filename,True,SNUM(cnum)) &&
diff --git a/source3/smbd/ipc.c b/source3/smbd/ipc.c
index ced3a2009d..b9355c4ec0 100644
--- a/source3/smbd/ipc.c
+++ b/source3/smbd/ipc.c
@@ -774,7 +774,7 @@ static int get_server_info(uint32 servertype,
   pstring line;
   BOOL local_list_only;
 
-  strcpy(fname,lp_lockdir());
+  pstrcpy(fname,lp_lockdir());
   trim_string(fname,NULL,"/");
   strcat(fname,"/");
   strcat(fname,SERVER_LIST);
@@ -1363,7 +1363,7 @@ static BOOL api_SetUserPassword(int cnum,uint16 vuid, char *param,char *data,
   fstring user;
   fstring pass1,pass2;
 
-  strcpy(user,p);
+  fstrcpy(user,p);
 
   p = skip_string(p,1);
 
@@ -1698,14 +1698,14 @@ static BOOL api_RNetServerGetInfo(int cnum,uint16 vuid, char *param,char *data,
       pstring comment;
       uint32 servertype= lp_default_server_announce();
 
-      strcpy(comment,lp_serverstring());
+      pstrcpy(comment,lp_serverstring());
 
       if ((count=get_server_info(SV_TYPE_ALL,&servers,myworkgroup))>0) {
 	for (i=0;i<count;i++)
 	  if (strequal(servers[i].name,local_machine))
       {
 	    servertype = servers[i].type;
-	    strcpy(comment,servers[i].comment);	    
+	    pstrcpy(comment,servers[i].comment);	    
 	  }
       }
       if (servers) free(servers);
@@ -2026,7 +2026,7 @@ static BOOL api_RNetUserGetInfo(int cnum,uint16 vuid, char *param,char *data,
 	p2 = p + usri11_end;
 
 	memset(p,0,21); 
-	strcpy(p+usri11_name,UserName); /* 21 bytes - user name */
+	fstrcpy(p+usri11_name,UserName); /* 21 bytes - user name */
 
 	if (uLevel > 0)
 	{
@@ -2043,9 +2043,9 @@ static BOOL api_RNetUserGetInfo(int cnum,uint16 vuid, char *param,char *data,
 		strcpy(p2,"UserComment");
 		p2 = skip_string(p2,1);
 
-        /* EEK! the cifsrap.txt doesn't have this in!!!! */
+		/* EEK! the cifsrap.txt doesn't have this in!!!! */
 		SIVAL(p,usri11_full_name,PTR_DIFF(p2,p)); /* full name */
-        strcpy(p2,vuser->real_name);	/* simeon */
+		strcpy(p2,vuser->real_name);	/* simeon */
 		p2 = skip_string(p2,1);
 	}
 
@@ -2062,7 +2062,7 @@ static BOOL api_RNetUserGetInfo(int cnum,uint16 vuid, char *param,char *data,
 		else
 		{
 #if (defined(NETGROUP) && defined(AUTOMOUNT))
-            strcpy(p2, vuser->home_share);
+			strcpy(p2, vuser->home_share);
 #else
 			strcpy(p2,"\\\\%L\\%U");
 #endif
@@ -2469,7 +2469,8 @@ static void fill_printdest_info(int cnum, int snum, int uLevel,
 				struct pack_desc* desc)
 {
   char buf[100];
-  strcpy(buf,SERVICE(snum));
+  strncpy(buf,SERVICE(snum),sizeof(buf)-1);
+  buf[sizeof(buf)-1] = 0;
   strupper(buf);
   if (uLevel <= 1) {
     PACKS(desc,"B9",buf);	/* szName */
@@ -3026,7 +3027,11 @@ int reply_trans(char *inbuf,char *outbuf)
   int dsoff = SVAL(inbuf,smb_vwv12);
   int suwcnt = CVAL(inbuf,smb_vwv13);
 
-  StrnCpy(name,smb_buf(inbuf),sizeof(name)-1);
+  fstrcpy(name,smb_buf(inbuf));
+
+  if (dscnt > tdscnt || pscnt > tpscnt) {
+	  exit_server("invalid trans parameters\n");
+  }
   
   if (tdscnt)
     {
@@ -3088,6 +3093,10 @@ int reply_trans(char *inbuf,char *outbuf)
       pscnt += pcnt;
       dscnt += dcnt;
 
+      if (dscnt > tdscnt || pscnt > tpscnt) {
+	      exit_server("invalid trans parameters\n");
+      }
+
       if (pcnt)
 	memcpy(params+pdisp,smb_base(inbuf)+poff,pcnt);
       if (dcnt)
diff --git a/source3/smbd/mangle.c b/source3/smbd/mangle.c
index 3f753cf855..b0a45ffb47 100644
--- a/source3/smbd/mangle.c
+++ b/source3/smbd/mangle.c
@@ -273,7 +273,7 @@ BOOL check_mangled_stack(char *s)
 	}
       if (check_extension && !strchr(mangled_stack[i],'.'))
 	{
-	  strcpy(tmpname,mangled_stack[i]);
+	  pstrcpy(tmpname,mangled_stack[i]);
 	  strcat(tmpname,extension);
 	  mangle_name_83(tmpname);
 	  if (strequal(tmpname,s))
@@ -307,7 +307,7 @@ static char *map_filename(char *s, /* This is null terminated */
   pstring pat;
 
   StrnCpy(pat, pattern, len);   /* Get pattern into a proper string! */
-  strcpy(matching_bit,"");      /* Match but no star gets this. */
+  pstrcpy(matching_bit,"");      /* Match but no star gets this. */
   pp = pat;                     /* Initialise the pointers. */
   sp = s;
   if ((len == 1) && (*pattern == '*')) {
@@ -446,7 +446,7 @@ static void do_fwd_mangled_map(char *s, char *MangledMap)
         continue;               /* Always check for the end. */
       }
       if (*end == '*') {
-        strcpy(np, match_string);
+        pstrcpy(np, match_string);
         np += strlen(match_string);
         end++;                  /* Skip the '*' */
         while ((*end)             /* Not the end of string. */
@@ -460,7 +460,7 @@ static void do_fwd_mangled_map(char *s, char *MangledMap)
       }
       *np++ = '\0';             /* NULL terminate it. */
       DEBUG(5,("End of second in pair '%s'\n", end));
-      strcpy(s, new_string);    /* Substitute with the new name. */
+      pstrcpy(s, new_string);    /* Substitute with the new name. */
       DEBUG(5,("s is now '%s'\n", s));
     }
     start = end;              /* Skip a bit which cannot be wanted */
diff --git a/source3/smbd/message.c b/source3/smbd/message.c
index 93a2d9d850..64253932ab 100644
--- a/source3/smbd/message.c
+++ b/source3/smbd/message.c
@@ -54,7 +54,7 @@ static void msg_deliver(void)
 
   /* put it in a temporary file */
   sprintf(s,"%s/msg.XXXXXX",tmpdir());
-  strcpy(name,(char *)mktemp(s));
+  fstrcpy(name,(char *)mktemp(s));
 
   fd = open(name,O_WRONLY|O_CREAT|O_TRUNC|O_EXCL,0600);
   if (fd == -1) {
@@ -74,7 +74,7 @@ static void msg_deliver(void)
   /* run the command */
   if (*lp_msg_command())
     {
-      strcpy(s,lp_msg_command());
+      pstrcpy(s,lp_msg_command());
       string_sub(s,"%s",name);
       string_sub(s,"%f",msgfrom);
       string_sub(s,"%t",msgto);
@@ -108,8 +108,8 @@ int reply_sends(char *inbuf,char *outbuf)
   dest = skip_string(orig,1)+1;
   msg = skip_string(dest,1)+1;
 
-  strcpy(msgfrom,orig);
-  strcpy(msgto,dest);
+  fstrcpy(msgfrom,orig);
+  fstrcpy(msgto,dest);
 
   len = SVAL(msg,0);
   len = MIN(len,1600-msgpos);
@@ -143,10 +143,10 @@ int reply_sendstrt(char *inbuf,char *outbuf)
   orig = smb_buf(inbuf)+1;
   dest = skip_string(orig,1)+1;
 
-  strcpy(msgfrom,orig);
-  strcpy(msgto,dest);
+  fstrcpy(msgfrom,orig);
+  fstrcpy(msgto,dest);
 
-  DEBUG(3,("%s SMBsendstrt (from %s to %s)\n",timestring(),orig,dest));
+  DEBUG(3,("%s SMBsendstrt (from %s to %s)\n",timestring(),msgfrom,msgto));
 
   return(outsize);
 }
diff --git a/source3/smbd/pipes.c b/source3/smbd/pipes.c
index afab7e1d91..feb8d91a5b 100644
--- a/source3/smbd/pipes.c
+++ b/source3/smbd/pipes.c
@@ -87,7 +87,7 @@ int reply_open_pipe_and_X(char *inbuf,char *outbuf,int length,int bufsize)
   BOOL bad_path = False;
 
   /* XXXX we need to handle passed times, sattr and flags */
-  strcpy(fname,smb_buf(inbuf));
+  pstrcpy(fname,smb_buf(inbuf));
 
   /* If the name doesn't start \PIPE\ then this is directed */
   /* at a mailslot or something we really, really don't understand, */
@@ -98,7 +98,7 @@ int reply_open_pipe_and_X(char *inbuf,char *outbuf,int length,int bufsize)
   DEBUG(4,("Opening pipe %s.\n", fname));
 
   /* Strip \PIPE\ off the name. */
-  strcpy(fname,smb_buf(inbuf) + PIPELEN);
+  pstrcpy(fname,smb_buf(inbuf) + PIPELEN);
 
   /* See if it is one we want to handle. */
   for( i = 0; known_pipes[i] ; i++ )
diff --git a/source3/smbd/reply.c b/source3/smbd/reply.c
index 8117685637..c1422bbcf6 100644
--- a/source3/smbd/reply.c
+++ b/source3/smbd/reply.c
@@ -49,6 +49,18 @@ a packet to ensure chaining works correctly */
 
 
 /****************************************************************************
+report a possible attack via the password buffer overflow bug
+****************************************************************************/
+static void overflow_attack(int len)
+{
+	DEBUG(0,("ERROR: Invalid password length %d\n", len));
+	DEBUG(0,("you're machine may be under attack by a user exploiting an old bug\n"));
+	DEBUG(0,("Attack was from IP=%s\n", client_addr()));
+	exit_server("possible attack");
+}
+
+
+/****************************************************************************
   reply to an special message 
 ****************************************************************************/
 int reply_special(char *inbuf,char *outbuf)
@@ -66,36 +78,36 @@ int reply_special(char *inbuf,char *outbuf)
 	smb_setlen(outbuf,0);
 	
 	switch (msg_type) {
-	case 0x81: /* session request */
-		CVAL(outbuf,0) = 0x82;
-		CVAL(outbuf,3) = 0;
-		if (name_len(inbuf+4) > 50) {
-			DEBUG(0,("Invalid name length in session request\n"));
-			return(0);
-		}
-		name_extract(inbuf,4,name1);
-		name_extract(inbuf,4 + name_len(inbuf + 4),name2);
+    case 0x81: /* session request */
+      CVAL(outbuf,0) = 0x82;
+      CVAL(outbuf,3) = 0;
+      if (name_len(inbuf+4) > 50 || name_len(inbuf+4 + name_len(inbuf + 4)) > 50) {
+	      DEBUG(0,("Invalid name length in session request\n"));
+	      return(0);
+      }
+      name_extract(inbuf,4,name1);
+      name_extract(inbuf,4 + name_len(inbuf + 4),name2);
 		DEBUG(2,("netbios connect: name1=%s name2=%s\n",
 			 name1,name2));      
-		
-		strcpy(remote_machine,name2);
-		trim_string(remote_machine," "," ");
-		p = strchr(remote_machine,' ');
-		strlower(remote_machine);
-		if (p) *p = 0;
-		
-		strcpy(local_machine,name1);
-		trim_string(local_machine," "," ");
-		p = strchr(local_machine,' ');
-		strlower(local_machine);
-		if (p) *p = 0;
-		
-		add_session_user(remote_machine);
-		
-		reload_services(True);
-		reopen_logs();
-		
-		break;
+
+      fstrcpy(remote_machine,name2);
+      trim_string(remote_machine," "," ");
+      p = strchr(remote_machine,' ');
+      strlower(remote_machine);
+      if (p) *p = 0;
+
+      fstrcpy(local_machine,name1);
+      trim_string(local_machine," "," ");
+      p = strchr(local_machine,' ');
+      strlower(local_machine);
+      if (p) *p = 0;
+
+      add_session_user(remote_machine);
+
+      reload_services(True);
+      reopen_logs();
+
+      break;
 		
 	case 0x89: /* session keepalive request 
 		      (some old clients produce this?) */
@@ -160,25 +172,25 @@ static void parse_connect(char *p,char *service,char *user,
     
   p2 = strrchr(p,'\\');
   if (p2 == NULL)
-    strcpy(service,p);
+    fstrcpy(service,p);
   else
-    strcpy(service,p2+1);
+    fstrcpy(service,p2+1);
   
   p += strlen(p) + 2;
   
-  strcpy(password,p);
+  fstrcpy(password,p);
   *pwlen = strlen(password);
 
   p += strlen(p) + 2;
 
-  strcpy(dev,p);
+  fstrcpy(dev,p);
   
   *user = 0;
   p = strchr(service,'%');
   if (p != NULL)
     {
       *p = 0;
-      strcpy(user,p+1);
+      fstrcpy(user,p+1);
     }
 }
 
@@ -238,6 +250,10 @@ int reply_tcon_and_X(char *inbuf,char *outbuf,int length,int bufsize)
   /* we might have to close an old one */
   if ((SVAL(inbuf,smb_vwv2) & 0x1) != 0)
     close_cnum(SVAL(inbuf,smb_tid),vuid);
+
+  if (passlen > MAX_PASSWORD_LENGTH) {
+	  overflow_attack(passlen);
+  }
   
   {
     char *path;
@@ -252,18 +268,17 @@ int reply_tcon_and_X(char *inbuf,char *outbuf,int length,int bufsize)
       passlen = strlen(password);
     }
     
-    DEBUG(4,("parsing net-path %s, passlen=%d\n",path,passlen));
-    strcpy(service,path+2);
+    fstrcpy(service,path+2);
     p = strchr(service,'\\');
     if (!p)
       return(ERROR(ERRSRV,ERRinvnetname));
     *p = 0;
-    strcpy(service,p+1);
+    fstrcpy(service,p+1);
     p = strchr(service,'%');
     if (p)
       {
 	*p++ = 0;
-	strcpy(user,p);
+	fstrcpy(user,p);
       }
     StrnCpy(devicename,path + strlen(path) + 1,6);
     DEBUG(4,("Got device type %s\n",devicename));
@@ -372,11 +387,15 @@ int reply_sesssetup_and_X(char *inbuf,char *outbuf,int length,int bufsize)
 
   if (Protocol < PROTOCOL_NT1) {
     smb_apasslen = SVAL(inbuf,smb_vwv7);
+    if (smb_apasslen > MAX_PASSWORD_LENGTH)
+	    overflow_attack(smb_apasslen);
+
     memcpy(smb_apasswd,smb_buf(inbuf),smb_apasslen);
-    StrnCpy(user,smb_buf(inbuf)+smb_apasslen,sizeof(user)-1);
+    pstrcpy(user,smb_buf(inbuf)+smb_apasslen);
 
-    if (lp_security() != SEC_SERVER && !doencrypt)
-      smb_apasslen = strlen(smb_apasswd);
+    if (lp_security() != SEC_SERVER && !doencrypt) {
+	    smb_apasslen = strlen(smb_apasswd);
+    }
   } else {
     uint16 passlen1 = SVAL(inbuf,smb_vwv7);
     uint16 passlen2 = SVAL(inbuf,smb_vwv8);
@@ -401,6 +420,13 @@ int reply_sesssetup_and_X(char *inbuf,char *outbuf,int length,int bufsize)
     if (passlen1 != 24 && passlen2 != 24)
       doencrypt = False;
 
+    if (passlen1 > MAX_PASSWORD_LENGTH) {
+	    overflow_attack(passlen1);
+    }
+
+    passlen1 = MIN(passlen1, MAX_PASSWORD_LENGTH);
+    passlen2 = MIN(passlen2, MAX_PASSWORD_LENGTH);
+
     if(doencrypt) {
       /* Save the lanman2 password and the NT md4 password. */
       smb_apasslen = passlen1;
@@ -438,7 +464,7 @@ int reply_sesssetup_and_X(char *inbuf,char *outbuf,int length,int bufsize)
     }
     
     p += passlen1 + passlen2;
-    strcpy(user,p); p = skip_string(p,1);
+    fstrcpy(user,p); p = skip_string(p,1);
     DEBUG(3,("Domain=[%s]  NativeOS=[%s] NativeLanMan=[%s]\n",
 	     p,skip_string(p,1),skip_string(p,2)));
   }
@@ -591,7 +617,7 @@ int reply_chkpth(char *inbuf,char *outbuf)
  
   cnum = SVAL(inbuf,smb_tid);
   
-  strcpy(name,smb_buf(inbuf) + 1);
+  pstrcpy(name,smb_buf(inbuf) + 1);
   unix_convert(name,cnum,0,&bad_path);
 
   mode = SVAL(inbuf,smb_vwv0);
@@ -639,7 +665,7 @@ int reply_getatr(char *inbuf,char *outbuf)
  
   cnum = SVAL(inbuf,smb_tid);
 
-  strcpy(fname,smb_buf(inbuf) + 1);
+  pstrcpy(fname,smb_buf(inbuf) + 1);
   unix_convert(fname,cnum,0,&bad_path);
 
   /* dos smetimes asks for a stat of "" - it returns a "hidden directory"
@@ -714,7 +740,7 @@ int reply_setatr(char *inbuf,char *outbuf)
  
   cnum = SVAL(inbuf,smb_tid);
   
-  strcpy(fname,smb_buf(inbuf) + 1);
+  pstrcpy(fname,smb_buf(inbuf) + 1);
   unix_convert(fname,cnum,0,&bad_path);
 
   mode = SVAL(inbuf,smb_vwv0);
@@ -825,8 +851,8 @@ int reply_search(char *inbuf,char *outbuf)
     {
       pstring dir2;
 
-      strcpy(directory,smb_buf(inbuf)+1);
-      strcpy(dir2,smb_buf(inbuf)+1);
+      pstrcpy(directory,smb_buf(inbuf)+1);
+      pstrcpy(dir2,smb_buf(inbuf)+1);
       unix_convert(directory,cnum,0,&bad_path);
       unix_format(dir2);
 
@@ -842,7 +868,7 @@ int reply_search(char *inbuf,char *outbuf)
       else
       {
         *p = 0;
-        strcpy(mask,p+1);
+        pstrcpy(mask,p+1);
       }
 
       p = strrchr(directory,'/');
@@ -876,7 +902,7 @@ int reply_search(char *inbuf,char *outbuf)
     if ((p = strrchr(mask,' ')))
       {
 	fstring ext;
-	strcpy(ext,p+1);
+	fstrcpy(ext,p+1);
 	*p = 0;
 	trim_string(mask,NULL," ");
 	strcat(mask,".");
@@ -898,7 +924,7 @@ int reply_search(char *inbuf,char *outbuf)
   if (!strchr(mask,'.') && strlen(mask)>8)
     {
       fstring tmp;
-      strcpy(tmp,&mask[8]);
+      fstrcpy(tmp,&mask[8]);
       mask[8] = '.';
       mask[9] = 0;
       strcat(mask,tmp);
@@ -1078,7 +1104,7 @@ int reply_open(char *inbuf,char *outbuf)
 
   share_mode = SVAL(inbuf,smb_vwv0);
 
-  strcpy(fname,smb_buf(inbuf)+1);
+  pstrcpy(fname,smb_buf(inbuf)+1);
   unix_convert(fname,cnum,0,&bad_path);
     
   fnum = find_free_file();
@@ -1168,7 +1194,7 @@ int reply_open_and_X(char *inbuf,char *outbuf,int length,int bufsize)
 
   /* XXXX we need to handle passed times, sattr and flags */
 
-  strcpy(fname,smb_buf(inbuf));
+  pstrcpy(fname,smb_buf(inbuf));
   unix_convert(fname,cnum,0,&bad_path);
     
   fnum = find_free_file();
@@ -1281,7 +1307,7 @@ int reply_mknew(char *inbuf,char *outbuf)
   cnum = SVAL(inbuf,smb_tid);
 
   createmode = SVAL(inbuf,smb_vwv0);
-  strcpy(fname,smb_buf(inbuf)+1);
+  pstrcpy(fname,smb_buf(inbuf)+1);
   unix_convert(fname,cnum,0,&bad_path);
 
   if (createmode & aVOLID)
@@ -1359,7 +1385,8 @@ int reply_ctemp(char *inbuf,char *outbuf)
  
   cnum = SVAL(inbuf,smb_tid);
   createmode = SVAL(inbuf,smb_vwv0);
-  sprintf(fname,"%s/TMXXXXXX",smb_buf(inbuf)+1);
+  pstrcpy(fname,smb_buf(inbuf)+1);
+  strcat(fname,"/TMXXXXXX");
   unix_convert(fname,cnum,0,&bad_path);
   
   unixmode = unix_mode(cnum,createmode);
@@ -1455,7 +1482,7 @@ int reply_unlink(char *inbuf,char *outbuf)
   cnum = SVAL(inbuf,smb_tid);
   dirtype = SVAL(inbuf,smb_vwv0);
   
-  strcpy(name,smb_buf(inbuf) + 1);
+  pstrcpy(name,smb_buf(inbuf) + 1);
    
   DEBUG(3,("reply_unlink : %s\n",name));
    
@@ -1503,7 +1530,7 @@ int reply_unlink(char *inbuf,char *outbuf)
 	while ((dname = ReadDirName(dirptr)))
 	  {
 	    pstring fname;
-	    strcpy(fname,dname);
+	    pstrcpy(fname,dname);
 	    
 	    if(!mask_match(fname, mask, case_sensitive, False)) continue;
 
@@ -2381,7 +2408,7 @@ int reply_printopen(char *inbuf,char *outbuf)
   {
     pstring s;
     char *p;
-    StrnCpy(s,smb_buf(inbuf)+1,sizeof(pstring)-1);
+    pstrcpy(s,smb_buf(inbuf)+1);
     p = s;
     while (*p)
       {
@@ -2583,7 +2610,7 @@ int reply_mkdir(char *inbuf,char *outbuf)
   int outsize,ret= -1;
   BOOL bad_path = False;
  
-  strcpy(directory,smb_buf(inbuf) + 1);
+  pstrcpy(directory,smb_buf(inbuf) + 1);
   cnum = SVAL(inbuf,smb_tid);
   unix_convert(directory,cnum,0,&bad_path);
   
@@ -2680,7 +2707,7 @@ int reply_rmdir(char *inbuf,char *outbuf)
   BOOL bad_path = False;
 
   cnum = SVAL(inbuf,smb_tid);
-  strcpy(directory,smb_buf(inbuf) + 1);
+  pstrcpy(directory,smb_buf(inbuf) + 1);
   unix_convert(directory,cnum,0,&bad_path);
   
   if (check_name(directory,cnum))
@@ -2728,7 +2755,7 @@ int reply_rmdir(char *inbuf,char *outbuf)
                           errno = ENOMEM;
                           break;
                         }
-                      strcpy(fullname, directory);
+                      pstrcpy(fullname, directory);
                       strcat(fullname, "/");
                       strcat(fullname, dname);
                       
@@ -2795,21 +2822,21 @@ static BOOL resolve_wildcards(char *name1,char *name2)
 
   if (!name1 || !name2) return(False);
   
-  strcpy(root1,name1);
-  strcpy(root2,name2);
+  fstrcpy(root1,name1);
+  fstrcpy(root2,name2);
   p = strrchr(root1,'.');
   if (p) {
     *p = 0;
-    strcpy(ext1,p+1);
+    fstrcpy(ext1,p+1);
   } else {
-    strcpy(ext1,"");    
+    fstrcpy(ext1,"");    
   }
   p = strrchr(root2,'.');
   if (p) {
     *p = 0;
-    strcpy(ext2,p+1);
+    fstrcpy(ext2,p+1);
   } else {
-    strcpy(ext2,"");    
+    fstrcpy(ext2,"");    
   }
 
   p = root1;
@@ -2883,8 +2910,8 @@ int reply_mv(char *inbuf,char *outbuf)
 
   cnum = SVAL(inbuf,smb_tid);
   
-  strcpy(name,smb_buf(inbuf) + 1);
-  strcpy(newname,smb_buf(inbuf) + 3 + strlen(name));
+  pstrcpy(name,smb_buf(inbuf) + 1);
+  pstrcpy(newname,smb_buf(inbuf) + 3 + strlen(name));
    
   DEBUG(3,("reply_mv : %s -> %s\n",name,newname));
    
@@ -2998,14 +3025,14 @@ int reply_mv(char *inbuf,char *outbuf)
 	while ((dname = ReadDirName(dirptr)))
 	  {
 	    pstring fname;
-	    strcpy(fname,dname);
+	    pstrcpy(fname,dname);
 	    
 	    if(!mask_match(fname, mask, case_sensitive, False)) continue;
 
 	    error = ERRnoaccess;
 	    sprintf(fname,"%s/%s",directory,dname);
 	    if (!can_rename(fname,cnum)) continue;
-	    strcpy(destname,newname);
+	    pstrcpy(destname,newname);
 
 	    if (!resolve_wildcards(fname,destname)) continue;
 
@@ -3051,7 +3078,7 @@ static BOOL copy_file(char *src,char *dest1,int cnum,int ofun,
   int fnum1,fnum2;
   pstring dest;
   
-  strcpy(dest,dest1);
+  pstrcpy(dest,dest1);
   if (target_is_directory) {
     char *p = strrchr(src,'/');
     if (p) 
@@ -3128,8 +3155,8 @@ int reply_copy(char *inbuf,char *outbuf)
 
   cnum = SVAL(inbuf,smb_tid);
   
-  strcpy(name,smb_buf(inbuf));
-  strcpy(newname,smb_buf(inbuf) + 1 + strlen(name));
+  pstrcpy(name,smb_buf(inbuf));
+  pstrcpy(newname,smb_buf(inbuf) + 1 + strlen(name));
    
   DEBUG(3,("reply_copy : %s -> %s\n",name,newname));
    
@@ -3198,7 +3225,7 @@ int reply_copy(char *inbuf,char *outbuf)
 	while ((dname = ReadDirName(dirptr)))
 	  {
 	    pstring fname;
-	    strcpy(fname,dname);
+	    pstrcpy(fname,dname);
 	    
 	    if(!mask_match(fname, mask, case_sensitive, False)) continue;
 
@@ -3252,7 +3279,7 @@ int reply_setdir(char *inbuf,char *outbuf)
   if (!CAN_SETDIR(snum))
     return(ERROR(ERRDOS,ERRnoaccess));
   
-  strcpy(newdir,smb_buf(inbuf) + 1);
+  pstrcpy(newdir,smb_buf(inbuf) + 1);
   strlower(newdir);
   
   if (strlen(newdir) == 0)
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 3b24ba5ce9..22c8448dde 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -399,7 +399,7 @@ static BOOL scan_directory(char *path, char *name,int cnum,BOOL docache)
 	  (strequal(dname,".") || strequal(dname,"..")))
 	continue;
 
-      strcpy(name2,dname);
+      pstrcpy(name2,dname);
       if (!name_map_mangle(name2,False,SNUM(cnum))) continue;
 
       if ((mangled && mangled_equal(name,name2))
@@ -545,7 +545,7 @@ BOOL unix_convert(char *name,int cnum,pstring saved_last_component, BOOL *bad_pa
 
 	  /* remember the rest of the pathname so it can be restored
 	     later */
-	  if (end) strcpy(rest,end+1);
+	  if (end) pstrcpy(rest,end+1);
 
 	  /* try to find this part of the path in the directory */
 	  if (strchr(start,'?') || strchr(start,'*') ||
@@ -1057,7 +1057,7 @@ static void open_file(int fnum,int cnum,char *fname1,int flags,int mode, struct
   Files[fnum].fd_ptr = 0;
   errno = EPERM;
 
-  strcpy(fname,fname1);
+  pstrcpy(fname,fname1);
 
   /* check permissions */
   if ((flags != O_RDONLY) && !CAN_WRITE(cnum) && !Connections[cnum].printer)
@@ -1186,7 +1186,7 @@ static void open_file(int fnum,int cnum,char *fname1,int flags,int mode, struct
     pstring dname;
     int dum1,dum2,dum3;
     char *p;
-    strcpy(dname,fname);
+    pstrcpy(dname,fname);
     p = strrchr(dname,'/');
     if (p) *p = 0;
     if (sys_disk_free(dname,&dum1,&dum2,&dum3) < 
@@ -1321,10 +1321,10 @@ static void check_magic(int fnum,int cnum)
     int ret;
     pstring magic_output;
     pstring fname;
-    strcpy(fname,Files[fnum].name);
+    pstrcpy(fname,Files[fnum].name);
 
     if (*lp_magicoutput(SNUM(cnum)))
-      strcpy(magic_output,lp_magicoutput(SNUM(cnum)));
+      pstrcpy(magic_output,lp_magicoutput(SNUM(cnum)));
     else
       sprintf(magic_output,"%s.out",fname);
 
@@ -2355,10 +2355,10 @@ BOOL reload_services(BOOL test)
   if (lp_loaded())
     {
       pstring fname;
-      strcpy(fname,lp_configfile());
+      pstrcpy(fname,lp_configfile());
       if (file_exist(fname,NULL) && !strcsequal(fname,servicesf))
 	{
-	  strcpy(servicesf,fname);
+	  pstrcpy(servicesf,fname);
 	  test = False;
 	}
     }
@@ -2651,13 +2651,13 @@ int make_connection(char *service,char *user,char *password, int pwlen, char *de
     {
       struct passwd *pass2;
       fstring fuser;
-      strcpy(fuser,lp_force_user(snum));
+      fstrcpy(fuser,lp_force_user(snum));
       pass2 = (struct passwd *)Get_Pwnam(fuser,True);
       if (pass2)
 	{
 	  pcon->uid = pass2->pw_uid;
 	  string_set(&pcon->user,fuser);
-	  strcpy(user,fuser);
+	  fstrcpy(user,fuser);
 	  pcon->force_user = True;
 	  DEBUG(3,("Forced user %s\n",fuser));	  
 	}
@@ -2667,7 +2667,7 @@ int make_connection(char *service,char *user,char *password, int pwlen, char *de
 
   {
     pstring s;
-    strcpy(s,lp_pathname(snum));
+    pstrcpy(s,lp_pathname(snum));
     standard_sub(cnum,s);
     string_set(&pcon->connectpath,s);
     DEBUG(3,("Connect path is %s\n",s));
@@ -2703,7 +2703,7 @@ int make_connection(char *service,char *user,char *password, int pwlen, char *de
   if (*lp_rootpreexec(SNUM(cnum)))
     {
       pstring cmd;
-      strcpy(cmd,lp_rootpreexec(SNUM(cnum)));
+      pstrcpy(cmd,lp_rootpreexec(SNUM(cnum)));
       standard_sub(cnum,cmd);
       DEBUG(5,("cmd=%s\n",cmd));
       smbrun(cmd,NULL,False);
@@ -2743,7 +2743,7 @@ int make_connection(char *service,char *user,char *password, int pwlen, char *de
   /* resolve any soft links early */
   {
     pstring s;
-    strcpy(s,pcon->connectpath);
+    pstrcpy(s,pcon->connectpath);
     GetWd(s);
     string_set(&pcon->connectpath,s);
     ChDir(pcon->connectpath);
@@ -2757,7 +2757,7 @@ int make_connection(char *service,char *user,char *password, int pwlen, char *de
   if (*lp_preexec(SNUM(cnum)))
     {
       pstring cmd;
-      strcpy(cmd,lp_preexec(SNUM(cnum)));
+      pstrcpy(cmd,lp_preexec(SNUM(cnum)));
       standard_sub(cnum,cmd);
       smbrun(cmd,NULL,False);
     }
@@ -3216,7 +3216,7 @@ static int reply_negprot(char *inbuf,char *outbuf)
   SSVAL(outbuf,smb_vwv0,choice);
   if(choice != -1) {
     extern fstring remote_proto;
-    strcpy(remote_proto,supported_protocols[protocol].short_name);
+    fstrcpy(remote_proto,supported_protocols[protocol].short_name);
     reload_services(True);          
     outsize = supported_protocols[protocol].proto_reply_fn(outbuf);
     DEBUG(3,("Selected protocol %s\n",supported_protocols[protocol].proto_name));
@@ -3335,7 +3335,7 @@ BOOL yield_connection(int cnum,char *name,int max_connections)
 
   bzero(&crec,sizeof(crec));
 
-  strcpy(fname,lp_lockdir());
+  pstrcpy(fname,lp_lockdir());
   standard_sub(cnum,fname);
   trim_string(fname,"","/");
 
@@ -3407,7 +3407,7 @@ BOOL claim_connection(int cnum,char *name,int max_connections,BOOL Clear)
 
   DEBUG(5,("trying claim %s %s %d\n",lp_lockdir(),name,max_connections));
 
-  strcpy(fname,lp_lockdir());
+  pstrcpy(fname,lp_lockdir());
   standard_sub(cnum,fname);
   trim_string(fname,"","/");
 
@@ -3503,7 +3503,7 @@ static BOOL dump_core(void)
 {
   char *p;
   pstring dname;
-  strcpy(dname,debugf);
+  pstrcpy(dname,debugf);
   if ((p=strrchr(dname,'/'))) *p=0;
   strcat(dname,"/corefiles");
   mkdir(dname,0700);
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index c8e726d36e..59e9ef21b0 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -306,10 +306,10 @@ static int get_lanman2_dir_entry(int cnum,char *path_mask,int dirtype,int info_l
       if(p[1] == '\0')
 	strcpy(mask,"*.*");
       else
-	strcpy(mask, p+1);
+	pstrcpy(mask, p+1);
     }
   else
-    strcpy(mask, path_mask);
+    pstrcpy(mask, path_mask);
 
   while (!found)
     {
@@ -327,7 +327,7 @@ static int get_lanman2_dir_entry(int cnum,char *path_mask,int dirtype,int info_l
 
       matched = False;
 
-      strcpy(fname,dname);      
+      pstrcpy(fname,dname);      
 
       if(mask_match(fname, mask, case_sensitive, True))
 	{
@@ -338,7 +338,7 @@ static int get_lanman2_dir_entry(int cnum,char *path_mask,int dirtype,int info_l
 	  if (isrootdir && isdots)
 	    continue;
 
-	  strcpy(pathreal,Connections[cnum].dirpath);
+	  pstrcpy(pathreal,Connections[cnum].dirpath);
           if(needslash)
   	    strcat(pathreal,"/");
 	  strcat(pathreal,dname);
@@ -595,7 +595,7 @@ static int call_trans2findfirst(char *inbuf, char *outbuf, int bufsize, int cnum
       return(ERROR(ERRDOS,ERRunknownlevel));
     }
 
-  strcpy(directory, params + 12); /* Complete directory path with 
+  pstrcpy(directory, params + 12); /* Complete directory path with 
 				     wildcard mask appended */
 
   DEBUG(5,("path=%s\n",directory));
@@ -1057,7 +1057,7 @@ static int call_trans2qfilepathinfo(char *inbuf, char *outbuf, int length,
     /* qpathinfo */
     info_level = SVAL(params,0);
     fname = &fname1[0];
-    strcpy(fname,&params[6]);
+    pstrcpy(fname,&params[6]);
     unix_convert(fname,cnum,0,&bad_path);
     if (!check_name(fname,cnum) || sys_stat(fname,&sbuf)) {
       DEBUG(3,("fileinfo of %s failed (%s)\n",fname,strerror(errno)));
@@ -1163,7 +1163,7 @@ static int call_trans2qfilepathinfo(char *inbuf, char *outbuf, int length,
     case SMB_QUERY_FILE_ALT_NAME_INFO:
       data_size = 4 + l;
       SIVAL(pdata,0,l);
-      strcpy(pdata+4,fname);
+      pstrcpy(pdata+4,fname);
       break;
     case SMB_QUERY_FILE_ALLOCATION_INFO:
     case SMB_QUERY_FILE_END_OF_FILEINFO:
@@ -1197,7 +1197,7 @@ static int call_trans2qfilepathinfo(char *inbuf, char *outbuf, int length,
       pdata += 4;
       pdata += 4; /* alignment */
       SIVAL(pdata,0,l);
-      strcpy(pdata+4,fname);
+      pstrcpy(pdata+4,fname);
       pdata += 4 + l;
       data_size = PTR_DIFF(pdata,(*ppdata));
       break;
@@ -1208,7 +1208,7 @@ static int call_trans2qfilepathinfo(char *inbuf, char *outbuf, int length,
       SIVAL(pdata,4,size);
       SIVAL(pdata,12,size);
       SIVAL(pdata,20,l);	
-      strcpy(pdata+24,fname);
+      pstrcpy(pdata+24,fname);
       break;
     default:
       return(ERROR(ERRDOS,ERRunknownlevel));
@@ -1260,7 +1260,7 @@ static int call_trans2setfilepathinfo(char *inbuf, char *outbuf, int length,
     /* set path info */
     info_level = SVAL(params,0);    
     fname = fname1;
-    strcpy(fname,&params[6]);
+    pstrcpy(fname,&params[6]);
     unix_convert(fname,cnum,0,&bad_path);
     if(!check_name(fname, cnum))
     {
@@ -1443,7 +1443,7 @@ static int call_trans2mkdir(char *inbuf, char *outbuf, int length, int bufsize,
   if (!CAN_WRITE(cnum))
     return(ERROR(ERRSRV,ERRaccess));
 
-  strcpy(directory, &params[4]);
+  pstrcpy(directory, &params[4]);
 
   DEBUG(3,("call_trans2mkdir : name = %s\n", directory));
 
@@ -1645,6 +1645,9 @@ int reply_trans2(char *inbuf,char *outbuf,int length,int bufsize)
   num_params = num_params_sofar = SVAL(inbuf,smb_pscnt);
   num_data = num_data_sofar = SVAL(inbuf, smb_dscnt);
 
+  if (num_params > total_params || num_data > total_data)
+	  exit_server("invalid params in reply_trans2");
+
   memcpy( params, smb_base(inbuf) + SVAL(inbuf, smb_psoff), num_params);
   memcpy( data, smb_base(inbuf) + SVAL(inbuf, smb_dsoff), num_data);
 
@@ -1672,6 +1675,9 @@ int reply_trans2(char *inbuf,char *outbuf,int length,int bufsize)
 	  total_data = SVAL(inbuf, smb_tdscnt);
 	  num_params_sofar += (num_params = SVAL(inbuf,smb_spscnt));
 	  num_data_sofar += ( num_data = SVAL(inbuf, smb_sdscnt));
+	  if (num_params_sofar > total_params || num_data_sofar > total_data)
+		  exit_server("data overflow in trans2");
+
 	  memcpy( &params[ SVAL(inbuf, smb_spsdisp)], 
 		 smb_base(inbuf) + SVAL(inbuf, smb_spsoff), num_params);
 	  memcpy( &data[SVAL(inbuf, smb_sdsdisp)],
diff --git a/source3/smbd/vt_mode.c b/source3/smbd/vt_mode.c
index 0a4d50c217..07558274a5 100644
--- a/source3/smbd/vt_mode.c
+++ b/source3/smbd/vt_mode.c
@@ -81,7 +81,7 @@ int VT_Start_utmp(void)
 
 	setutent();
 
-	strcpy(u.ut_line, VT_Line);
+	fstrcpy(u.ut_line, VT_Line);
 
 	if((v = getutline(&u)) == NULL) {
 		if(strncmp(VT_Line, "tty", 3) == 0)
@@ -91,12 +91,12 @@ int VT_Start_utmp(void)
 		else
 			tt = VT_Line;
 
-		strcpy(u.ut_id, tt);
+		fstrcpy(u.ut_id, tt);
 		u.ut_time = time((time_t*)0);
 	}
 
-	strcpy(u.ut_user, "LOGIN");
-	strcpy(u.ut_line, VT_Line);
+	fstrcpy(u.ut_user, "LOGIN");
+	fstrcpy(u.ut_line, VT_Line);
 	u.ut_pid = getpid();
 	u.ut_type = LOGIN_PROCESS;
 	pututline(&u);
@@ -118,10 +118,10 @@ int VT_Stop_utmp(void)
 	if(VT_Line != NULL) {
 		setutent();
 
-		strcpy(u.ut_line, VT_Line);
+		fstrcpy(u.ut_line, VT_Line);
 
 		if((v = getutline(&u)) != NULL) {
-			strcpy(v->ut_user, "");
+			fstrcpy(v->ut_user, "");
 			v->ut_type = DEAD_PROCESS;
 			v->ut_time = time((time_t*)0);
 			pututline(v);