Remove more fstring/pstring bad useage. Go talloc !

Jeremy.
(This used to be commit 2a0173743d2cf615d52278f3dd87cc804abe2d16)

11 files changed, 106 insertions, 83 deletions

diff --git a/source3/include/includes.h b/source3/include/includes.h
index b9e77010de..2e82070815 100644
--- a/source3/include/includes.h
+++ b/source3/include/includes.h
@@ -892,7 +892,7 @@ int setresgid(gid_t rgid, gid_t egid, gid_t sgid);
  * defined.
  */
 #ifndef MAXHOSTNAMELEN
-#define MAXHOSTNAMELEN 254
+#define MAXHOSTNAMELEN 255
 #endif
 
 /* yuck, I'd like a better way of doing this */
diff --git a/source3/lib/replace/replace.h b/source3/lib/replace/replace.h
index 55ed2e9570..973c68ee14 100644
--- a/source3/lib/replace/replace.h
+++ b/source3/lib/replace/replace.h
@@ -357,7 +357,7 @@ ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset)
 #define _TYPE_MAXIMUM(t) ((t) (~ (t) 0 - _TYPE_MINIMUM (t)))
 
 #ifndef HOST_NAME_MAX
-#define HOST_NAME_MAX 64
+#define HOST_NAME_MAX 255
 #endif
 
 /*
diff --git a/source3/lib/util.c b/source3/lib/util.c
index 0ae80c1f9e..6e92a60238 100644
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -1212,23 +1212,24 @@ bool get_myname(char *my_name)
  Get my own domain name.
 ****************************************************************************/
 
-bool get_mydnsdomname(fstring my_domname)
+char *get_mydnsdomname(TALLOC_CTX *ctx)
 {
-	fstring domname;
+	const char *domname;
+	char *my_domname = NULL;
 	char *p;
 
-	*my_domname = '\0';
-	if (!get_mydnsfullname(domname)) {
-		return False;
-	}	
+	domname = get_mydnsfullname();
+	if (!domname) {
+		return NULL;
+	}
+
 	p = strchr_m(domname, '.');
 	if (p) {
 		p++;
-		fstrcpy(my_domname, p);
-		return True;
+		my_domname = talloc_strdup(ctx, p);
 	}
 
-	return False;
+	return my_domname;
 }
 
 /****************************************************************************
diff --git a/source3/lib/util_sock.c b/source3/lib/util_sock.c
index bd6fdbb105..66da297dc7 100644
--- a/source3/lib/util_sock.c
+++ b/source3/lib/util_sock.c
@@ -1978,34 +1978,34 @@ out_umask:
  Get my own canonical name, including domain.
 ****************************************************************************/
 
-static fstring dnshostname_cache;
-
-bool get_mydnsfullname(fstring my_dnsname)
+const char *get_mydnsfullname(void)
 {
-	if (!*dnshostname_cache) {
+	static char *dnshostname_cache;
+
+	if (dnshostname_cache == NULL || !*dnshostname_cache) {
 		struct addrinfo *res = NULL;
+		char my_hostname[HOST_NAME_MAX];
 		bool ret;
 
 		/* get my host name */
-		if (gethostname(dnshostname_cache, sizeof(dnshostname_cache)) == -1) {
-			*dnshostname_cache = '\0';
+		if (gethostname(my_hostname, sizeof(my_hostname)) == -1) {
 			DEBUG(0,("get_mydnsfullname: gethostname failed\n"));
-			return false;
+			return NULL;
 		}
 
 		/* Ensure null termination. */
-		dnshostname_cache[sizeof(dnshostname_cache)-1] = '\0';
+		my_hostname[sizeof(my_hostname)-1] = '\0';
 
 		ret = interpret_string_addr_internal(&res,
-					dnshostname_cache,
+					my_hostname,
 					AI_ADDRCONFIG|AI_CANONNAME);
 
 		if (!ret || res == NULL) {
 			DEBUG(3,("get_mydnsfullname: getaddrinfo failed for "
 				"name %s [%s]\n",
-				dnshostname_cache,
+				my_hostname,
 				gai_strerror(ret) ));
-			return false;
+			return NULL;
 		}
 
 		/*
@@ -2015,17 +2015,15 @@ bool get_mydnsfullname(fstring my_dnsname)
 		if (res->ai_canonname == NULL) {
 			DEBUG(3,("get_mydnsfullname: failed to get "
 				"canonical name for %s\n",
-				dnshostname_cache));
+				my_hostname));
 			freeaddrinfo(res);
-			return false;
+			return NULL;
 		}
 
-
-		fstrcpy(dnshostname_cache, res->ai_canonname);
+		dnshostname_cache = SMB_STRDUP(res->ai_canonname);
 		freeaddrinfo(res);
 	}
-	fstrcpy(my_dnsname, dnshostname_cache);
-	return true;
+	return dnshostname_cache;
 }
 
 /************************************************************
@@ -2034,15 +2032,20 @@ bool get_mydnsfullname(fstring my_dnsname)
 
 bool is_myname_or_ipaddr(const char *s)
 {
-	fstring name, dnsname;
-	char *servername;
+	TALLOC_CTX *ctx = talloc_tos();
+	char *name = NULL;
+	const char *dnsname;
+	char *servername = NULL;
 
 	if (!s) {
 		return false;
 	}
 
 	/* Santize the string from '\\name' */
-	fstrcpy(name, s);
+	name = talloc_strdup(ctx, s);
+	if (!name) {
+		return false;
+	}
 
 	servername = strrchr_m(name, '\\' );
 	if (!servername) {
@@ -2072,10 +2075,9 @@ bool is_myname_or_ipaddr(const char *s)
 	}
 
 	/* Maybe it's my dns name */
-	if (get_mydnsfullname(dnsname)) {
-		if (strequal(servername, dnsname)) {
-			return true;
-		}
+	dnsname = get_mydnsfullname();
+	if (dnsname && strequal(servername, dnsname)) {
+		return true;
 	}
 
 	/* Handle possible CNAME records - convert to an IP addr. */
@@ -2104,7 +2106,7 @@ bool is_myname_or_ipaddr(const char *s)
 			return false;
 		}
 
-		nics = TALLOC_ARRAY(talloc_tos(), struct iface_struct,
+		nics = TALLOC_ARRAY(ctx, struct iface_struct,
 					MAX_INTERFACES);
 		if (!nics) {
 			return false;
diff --git a/source3/libsmb/ntlmssp.c b/source3/libsmb/ntlmssp.c
index 7205d57a0a..ed08e8102b 100644
--- a/source3/libsmb/ntlmssp.c
+++ b/source3/libsmb/ntlmssp.c
@@ -501,18 +501,19 @@ DATA_BLOB ntlmssp_weaken_keys(NTLMSSP_STATE *ntlmssp_state, TALLOC_CTX *mem_ctx)
 
 /**
  * Next state function for the Negotiate packet
- * 
+ *
  * @param ntlmssp_state NTLMSSP State
  * @param request The request, as a DATA_BLOB
  * @param request The reply, as an allocated DATA_BLOB, caller to free.
- * @return Errors or MORE_PROCESSING_REQUIRED if a reply is sent. 
+ * @return Errors or MORE_PROCESSING_REQUIRED if a reply is sent.
  */
 
 static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
 					 const DATA_BLOB request, DATA_BLOB *reply) 
 {
 	DATA_BLOB struct_blob;
-	fstring dnsname, dnsdomname;
+	const char *dnsname;
+	char *dnsdomname = NULL;
 	uint32 neg_flags = 0;
 	uint32 ntlmssp_command, chal_flags;
 	const uint8 *cryptkey;
@@ -535,7 +536,7 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
 		}
 		debug_ntlmssp_flags(neg_flags);
 	}
-	
+
 	ntlmssp_handle_neg_flags(ntlmssp_state, neg_flags, lp_lanman_auth());
 
 	/* Ask our caller what challenge they would like in the packet */
@@ -548,31 +549,34 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
 
 	/* The flags we send back are not just the negotiated flags,
 	 * they are also 'what is in this packet'.  Therfore, we
-	 * operate on 'chal_flags' from here on 
+	 * operate on 'chal_flags' from here on
 	 */
 
 	chal_flags = ntlmssp_state->neg_flags;
 
 	/* get the right name to fill in as 'target' */
-	target_name = ntlmssp_target_name(ntlmssp_state, 
-					  neg_flags, &chal_flags); 
-	if (target_name == NULL) 
+	target_name = ntlmssp_target_name(ntlmssp_state,
+					  neg_flags, &chal_flags);
+	if (target_name == NULL)
 		return NT_STATUS_INVALID_PARAMETER;
 
 	ntlmssp_state->chal = data_blob_talloc(ntlmssp_state->mem_ctx, cryptkey, 8);
 	ntlmssp_state->internal_chal = data_blob_talloc(ntlmssp_state->mem_ctx, cryptkey, 8);
-	
 
 	/* This should be a 'netbios domain -> DNS domain' mapping */
-	dnsdomname[0] = '\0';
-	get_mydnsdomname(dnsdomname);
+	dnsdomname = get_mydnsdomname(ntlmssp_state->mem_ctx);
+	if (!dnsdomname) {
+		return NT_STATUS_BAD_NETWORK_NAME;
+	}
 	strlower_m(dnsdomname);
-	
-	dnsname[0] = '\0';
-	get_mydnsfullname(dnsname);
-	
+
+	dnsname = get_mydnsfullname();
+	if (!dnsdomname) {
+		return NT_STATUS_INVALID_COMPUTER_NAME;
+	}
+
 	/* This creates the 'blob' of names that appears at the end of the packet */
-	if (chal_flags & NTLMSSP_CHAL_TARGET_INFO) 
+	if (chal_flags & NTLMSSP_CHAL_TARGET_INFO)
 	{
 		msrpc_gen(&struct_blob, "aaaaa",
 			  NTLMSSP_NAME_TYPE_DOMAIN, target_name,
@@ -592,9 +596,9 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
 		} else {
 			gen_string = "CdAdbddB";
 		}
-		
+
 		msrpc_gen(reply, gen_string,
-			  "NTLMSSP", 
+			  "NTLMSSP",
 			  NTLMSSP_CHALLENGE,
 			  target_name,
 			  chal_flags,
@@ -602,7 +606,7 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
 			  0, 0,
 			  struct_blob.data, struct_blob.length);
 	}
-		
+
 	data_blob_free(&struct_blob);
 
 	ntlmssp_state->expected_state = NTLMSSP_AUTH;
@@ -612,7 +616,7 @@ static NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
 
 /**
  * Next state function for the Authenticate packet
- * 
+ *
  * @param ntlmssp_state NTLMSSP State
  * @param request The request, as a DATA_BLOB
  * @param request The reply, as an allocated DATA_BLOB, caller to free.
diff --git a/source3/nmbd/nmbd_processlogon.c b/source3/nmbd/nmbd_processlogon.c
index feb7941cc3..50a614a390 100644
--- a/source3/nmbd/nmbd_processlogon.c
+++ b/source3/nmbd/nmbd_processlogon.c
@@ -394,13 +394,18 @@ reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
 				else {
 					struct GUID domain_guid;
 					UUID_FLAT flat_guid;
-					pstring domain;
+					char *domain;
 					pstring hostname;
 					char *component, *dc, *q1;
 					char *q_orig = q;
 					int str_offset;
 
-					get_mydnsdomname(domain);
+					domain = get_mydnsdomname(talloc_tos());
+					if (!domain) {
+						DEBUG(2,
+						("get_mydnsdomname failed.\n"));
+						return;
+					}
 					get_myname(hostname);
 
 					if (sizeof(outbuf) - PTR_DIFF(q, outbuf) < 8) {
diff --git a/source3/printing/nt_printing.c b/source3/printing/nt_printing.c
index 36add6f474..57e7d37c6e 100644
--- a/source3/printing/nt_printing.c
+++ b/source3/printing/nt_printing.c
@@ -2936,7 +2936,7 @@ static bool map_nt_printer_info2_to_dsspooler(NT_PRINTER_INFO_LEVEL_2 *info2)
 {
 	REGVAL_CTR *ctr = NULL;
 	fstring longname;
-	fstring dnssuffix;
+	const char *dnssuffix;
 	char *allocated_string = NULL;
         const char *ascii_str;
 	int i;
@@ -2948,15 +2948,17 @@ static bool map_nt_printer_info2_to_dsspooler(NT_PRINTER_INFO_LEVEL_2 *info2)
 	map_sz_into_ctr(ctr, SPOOL_REG_PRINTERNAME, info2->sharename);
 	map_sz_into_ctr(ctr, SPOOL_REG_SHORTSERVERNAME, global_myname());
 
-	/* we make the assumption that the netbios name is the same 
-	   as the DNS name sinc ethe former will be what we used to 
+	/* we make the assumption that the netbios name is the same
+	   as the DNS name sinc ethe former will be what we used to
 	   join the domain */
 
-	if ( get_mydnsdomname( dnssuffix ) )
+	dnssuffix = get_mydnsdomname(talloc_tos());
+	if (!dnssuffix) {
 		fstr_sprintf( longname, "%s.%s", global_myname(), dnssuffix );
-	else
+	} else {
 		fstrcpy( longname, global_myname() );
-		
+	}
+
 	map_sz_into_ctr(ctr, SPOOL_REG_SERVERNAME, longname);
 
 	asprintf(&allocated_string, "\\\\%s\\%s", longname, info2->sharename);
diff --git a/source3/registry/reg_dynamic.c b/source3/registry/reg_dynamic.c
index 472760eacf..e589dff2c8 100644
--- a/source3/registry/reg_dynamic.c
+++ b/source3/registry/reg_dynamic.c
@@ -83,17 +83,20 @@ static int tcpip_params( REGVAL_CTR *regvals )
 	fstring                 value;
 	int                     value_length;
 	char   			*hname;
-	fstring 		mydomainname;
-	
+	char *mydomainname = NULL;
 
 	hname = myhostname();
 	value_length = push_ucs2( value, value, hname, sizeof(value), STR_TERMINATE|STR_NOALIGN);		
 	regval_ctr_addvalue( regvals, "Hostname",REG_SZ, value, value_length );
-	
-	get_mydnsdomname( mydomainname );		
+
+	mydomainname = get_mydnsdomname(talloc_tos());
+	if (!mydomainname) {
+		return -1;
+	}
+
 	value_length = push_ucs2( value, value, mydomainname, sizeof(value), STR_TERMINATE|STR_NOALIGN);		
 	regval_ctr_addvalue( regvals, "Domain", REG_SZ, value, value_length );
-		
+
 	return regval_ctr_numvals( regvals );
 }
 
diff --git a/source3/rpc_server/srv_lsa_nt.c b/source3/rpc_server/srv_lsa_nt.c
index ea2bc0fa7b..5c2e1b6f01 100644
--- a/source3/rpc_server/srv_lsa_nt.c
+++ b/source3/rpc_server/srv_lsa_nt.c
@@ -1927,10 +1927,12 @@ NTSTATUS _lsa_query_info2(pipes_struct *p, LSA_Q_QUERY_INFO2 *q_u, LSA_R_QUERY_I
 				/* ugly temp hack for these next two */
 
 				/* This should be a 'netbios domain -> DNS domain' mapping */
-				dnsdomname[0] = '\0';
-				get_mydnsdomname(dnsdomname);
+				dnsdomname = get_mydnsdomname(p->mem_ctx);
+				if (!dnsdomname) {
+					return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+				}
 				strlower_m(dnsdomname);
-				
+
 				dns_name = dnsdomname;
 				forest_name = dnsdomname;
 
diff --git a/source3/rpc_server/srv_spoolss_nt.c b/source3/rpc_server/srv_spoolss_nt.c
index aba56c2d05..fe7a12940e 100644
--- a/source3/rpc_server/srv_spoolss_nt.c
+++ b/source3/rpc_server/srv_spoolss_nt.c
@@ -2401,20 +2401,20 @@ static WERROR getprinterdata_printer_server(TALLOC_CTX *ctx, fstring value, uint
 		return WERR_OK;
 	}
 
-	if (!StrCaseCmp(value, "DNSMachineName")) {			
-		pstring hostname;
-		
-		if (!get_mydnsfullname(hostname))
+	if (!StrCaseCmp(value, "DNSMachineName")) {
+		const char *hostname = get_mydnsfullname();
+
+		if (!hostname)
 			return WERR_BADFILE;
 		*type = REG_SZ;
-		*needed = 2*(strlen(hostname)+1);	
+		*needed = 2*(strlen(hostname)+1);
 		if((*data  = (uint8 *)TALLOC(ctx, (*needed > in_size) ? *needed:in_size )) == NULL)
 			return WERR_NOMEM;
 		memset(*data, 0, (*needed > in_size) ? *needed:in_size);
 		for (i=0; i<strlen(hostname); i++) {
 			(*data)[2*i]=hostname[i];
 			(*data)[2*i+1]='\0';
-		}			
+		}
 		return WERR_OK;
 	}
 
diff --git a/source3/utils/net_rpc_printer.c b/source3/utils/net_rpc_printer.c
index d14caad975..5e85bae7ee 100644
--- a/source3/utils/net_rpc_printer.c
+++ b/source3/utils/net_rpc_printer.c
@@ -2070,7 +2070,7 @@ NTSTATUS rpc_printer_migrate_settings_internals(const DOM_SID *domain_sid,
 	REGVAL_CTR *reg_ctr;
 	struct cli_state *cli_dst = NULL;
 	char *devicename = NULL, *unc_name = NULL, *url = NULL;
-	fstring longname;
+	const char *longname;
 
 	uint16 *keylist = NULL, *curkey;
 
@@ -2094,12 +2094,16 @@ NTSTATUS rpc_printer_migrate_settings_internals(const DOM_SID *domain_sid,
 		printf ("no printers found on server.\n");
 		nt_status = NT_STATUS_OK;
 		goto done;
-	} 
-	
+	}
+
 
 	/* needed for dns-strings in regkeys */
-	get_mydnsfullname(longname);
-	
+	longname = get_mydnsfullname();
+	if (!longname) {
+		nt_status = NT_STATUS_UNSUCCESSFUL;
+		goto done;
+	}
+
 	/* do something for all printers */
 	for (i = 0; i < num_printers; i++) {