r3877: Final (I hope :-) fix for #2050 from Lars Müller for select maxfd's.

Jeremy.
(This used to be commit 65fc39fc388244923d1e36076b5a4116aa434be5)

3 files changed, 17 insertions, 24 deletions

diff --git a/source3/nmbd/nmbd_packets.c b/source3/nmbd/nmbd_packets.c
index 9dd2d05e14..a81b28ec74 100644
--- a/source3/nmbd/nmbd_packets.c
+++ b/source3/nmbd/nmbd_packets.c
@@ -1635,16 +1635,6 @@ on subnet %s\n", rrec->response_id, inet_ntoa(rrec->packet->ip), subrec->subnet_
 }
 
 /****************************************************************************
-  Check and if required set the highest fd.
-***************************************************************************/
-
-void check_set_maxfd( int *maxfd, int fd)
-{
-	if ( *maxfd < fd )
-		*maxfd = fd;
-}
-
-/****************************************************************************
   Create an fd_set containing all the sockets in the subnet structures,
   plus the broadcast sockets.
 ***************************************************************************/
@@ -1682,25 +1672,25 @@ only use %d.\n", (count*2) + 2, FD_SETSIZE));
 	/* Add in the broadcast socket on 137. */
 	FD_SET(ClientNMB,pset);
 	sock_array[num++] = ClientNMB;
-	check_set_maxfd( maxfd, ClientNMB);
+	*maxfd = MAX( *maxfd, ClientNMB);
 
 	/* Add in the 137 sockets on all the interfaces. */
 	for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) {
 		FD_SET(subrec->nmb_sock,pset);
 		sock_array[num++] = subrec->nmb_sock;
-		check_set_maxfd( maxfd, subrec->nmb_sock);
+		*maxfd = MAX( *maxfd, subrec->nmb_sock);
 	}
 
 	/* Add in the broadcast socket on 138. */
 	FD_SET(ClientDGRAM,pset);
 	sock_array[num++] = ClientDGRAM;
-	check_set_maxfd( maxfd, ClientDGRAM);
+	*maxfd = MAX( *maxfd, ClientDGRAM);
 
 	/* Add in the 138 sockets on all the interfaces. */
 	for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) {
 		FD_SET(subrec->dgram_sock,pset);
 		sock_array[num++] = subrec->dgram_sock;
-		check_set_maxfd( maxfd, subrec->dgram_sock);
+		*maxfd = MAX( *maxfd, subrec->dgram_sock);
 	}
 
 	*listen_number = (count*2) + 2;
@@ -1725,7 +1715,7 @@ BOOL listen_for_packets(BOOL run_election)
 	static int listen_number = 0;
 	static int *sock_array = NULL;
 	int i;
-	int maxfd = 0;
+	static int maxfd = 0;
 
 	fd_set fds;
 	int selrtn;
@@ -1748,7 +1738,7 @@ BOOL listen_for_packets(BOOL run_election)
 	dns_fd = asyncdns_fd();
 	if (dns_fd != -1) {
 		FD_SET(dns_fd, &fds);
-		check_set_maxfd( &maxfd, dns_fd);
+		maxfd = MAX( maxfd, dns_fd);
 	}
 #endif
 
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 5f2713bb83..156755a5b8 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -186,7 +186,7 @@ static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_
 	int fd_listenset[FD_SETSIZE];
 	fd_set listen_set;
 	int s;
-	int max_fd = 0;
+	int maxfd = 0;
 	int i;
 	char *ports;
 
@@ -249,9 +249,6 @@ static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_
 				if(s == -1)
 					return False;
 
-				if (max_fd < s)
-					max_fd = s;
-
 				/* ready to listen */
 				set_socket_options(s,"SO_KEEPALIVE"); 
 				set_socket_options(s,user_socket_options);
@@ -265,6 +262,7 @@ static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_
 					return False;
 				}
 				FD_SET(s,&listen_set);
+				maxfd = MAX( maxfd, s);
 
 				num_sockets++;
 				if (num_sockets >= FD_SETSIZE) {
@@ -307,6 +305,7 @@ static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_
 
 			fd_listenset[num_sockets] = s;
 			FD_SET(s,&listen_set);
+			maxfd = MAX( maxfd, s);
 
 			num_sockets++;
 
@@ -341,7 +340,7 @@ static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_
 		memcpy((char *)&lfds, (char *)&listen_set, 
 		       sizeof(listen_set));
 		
-		num = sys_select(max_fd+1,&lfds,NULL,NULL,NULL);
+		num = sys_select(maxfd+1,&lfds,NULL,NULL,NULL);
 		
 		if (num == -1 && errno == EINTR) {
 			if (got_sig_term) {
diff --git a/source3/wrepld/server.c b/source3/wrepld/server.c
index d78e0b206f..9d035a6cbf 100644
--- a/source3/wrepld/server.c
+++ b/source3/wrepld/server.c
@@ -164,7 +164,7 @@ void exit_server(const char *reason)
   plus the broadcast sockets.
 ***************************************************************************/
 
-static BOOL create_listen_fdset(void)
+static BOOL create_listen_fdset( int *maxfd)
 {
 	int i;
 	int num_interfaces = iface_count();
@@ -221,6 +221,7 @@ static BOOL create_listen_fdset(void)
 			}
 			add_fd_to_sock_array(s);
 			FD_SET(s, listen_set);
+			*maxfd = MAX( *maxfd, s);
 		}
 	} else {
 		/* Just bind to 0.0.0.0 - accept connections from anywhere. */
@@ -243,6 +244,7 @@ static BOOL create_listen_fdset(void)
 		
 		add_fd_to_sock_array(s);
 		FD_SET(s, listen_set);
+		*maxfd = MAX( *maxfd, s);
 	} 
 
 	return True;
@@ -346,10 +348,11 @@ static BOOL listen_for_wins_packets(void)
 	int num_interfaces = iface_count();
 	fd_set fds;
 	int i, num, s, new_s;
+	static int maxfd = 0;
 	struct timeval timeout;
 
 	if(listen_set == NULL) {
-		if(!create_listen_fdset()) {
+		if(!create_listen_fdset( &maxfd)) {
 			DEBUG(0,("listen_for_packets: Fatal error. unable to create listen set. Exiting.\n"));
 			return True;
 		}
@@ -364,7 +367,7 @@ static BOOL listen_for_wins_packets(void)
 
 	BlockSignals(False, SIGTERM);
 
-	num = sys_select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
+	num = sys_select(maxfd+1, &fds, NULL, NULL, &timeout);
 
 	/* We can only take signals when we are in the select - block them again here. */
 
@@ -397,6 +400,7 @@ static BOOL listen_for_wins_packets(void)
 				set_socket_options(new_s, user_socket_options);
 				FD_SET(new_s, listen_set);
 				add_fd_to_sock_array(new_s);
+				maxfd = MAX( maxfd, new_s);
 			}
 		}