X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/d79d1c69f77dd6cc23a4692f6b8bdd82e181194e..f0359dd00d60d72c4b3dec85de8e490692f6015c:/main.c

diff --git a/main.c b/main.c
index 404d49b8..f7e52bed 100644
--- a/main.c
+++ b/main.c
@@ -278,38 +278,77 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 	int pid;
 	int status=0;
 	int recv_pipe[2];
+	int error_pipe[2];
 	extern int preserve_hard_links;
+	extern int delete_after;
+	extern int recurse;
+	extern int delete_mode;
+	extern int remote_version;
 
 	if (preserve_hard_links)
 		init_hard_links(flist);
 
-	if (pipe(recv_pipe) < 0) {
+	if (!delete_after) {
+		/* I moved this here from recv_files() to prevent a race condition */
+		if (recurse && delete_mode && !local_name && flist->count>0) {
+			delete_files(flist);
+		}
+	}
+
+	if (fd_pair(recv_pipe) < 0) {
 		rprintf(FERROR,"pipe failed in do_recv\n");
 		exit_cleanup(RERR_SOCKETIO);
 	}
+
+	if (fd_pair(error_pipe) < 0) {
+		rprintf(FERROR,"error pipe failed in do_recv\n");
+		exit_cleanup(RERR_SOCKETIO);
+	}
   
 	io_flush();
 
 	if ((pid=do_fork()) == 0) {
 		close(recv_pipe[0]);
+		close(error_pipe[0]);
 		if (f_in != f_out) close(f_out);
 
+		/* we can't let two processes write to the socket at one time */
+		io_multiplexing_close();
+
+		/* set place to send errors */
+		set_error_fd(error_pipe[1]);
+
 		recv_files(f_in,flist,local_name,recv_pipe[1]);
 		report(f_in);
 
+		write_int(recv_pipe[1],1);
+		close(recv_pipe[1]);
 		io_flush();
-		_exit(0);
+		/* finally we go to sleep until our parent kills us with
+		   a USR2 signal */
+		while (1) sleep(60);
 	}
 
 	close(recv_pipe[1]);
+	close(error_pipe[1]);
 	io_close_input(f_in);
 	if (f_in != f_out) close(f_in);
 
 	io_start_buffering(f_out);
 
+	io_set_error_fd(error_pipe[0]);
+
 	generate_files(f_out,flist,local_name,recv_pipe[0]);
 
+	read_int(recv_pipe[0]);
+	close(recv_pipe[0]);
+	if (remote_version >= 24) {
+		/* send a final goodbye message */
+		write_int(f_out, -1);
+	}
 	io_flush();
+
+	kill(pid, SIGUSR2);
 	wait_process(pid, &status);
 	return status;
 }
@@ -324,9 +363,18 @@ static void do_server_recv(int f_in, int f_out, int argc,char *argv[])
 	extern int delete_mode;
 	extern int delete_excluded;
 	extern int am_daemon;
+	extern int module_id;
+	extern int am_sender;
 
 	if (verbose > 2)
 		rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid());
+
+	if (am_daemon && lp_read_only(module_id) && !am_sender) {
+		rprintf(FERROR,"ERROR: module is read only\n");
+		exit_cleanup(RERR_SYNTAX);
+		return;
+	}
+
 	
 	if (argc > 0) {
 		dir = argv[0];
@@ -365,9 +413,16 @@ void start_server(int f_in, int f_out, int argc, char *argv[])
 {
 	extern int cvs_exclude;
 	extern int am_sender;
+	extern int remote_version;
 
 	setup_protocol(f_out, f_in);
 
+	set_nonblocking(f_in);
+	set_nonblocking(f_out);
+
+	if (remote_version >= 23)
+		io_start_multiplex_out(f_out);
+
 	if (am_sender) {
 		recv_exclude_list(f_in);
 		if (cvs_exclude)
@@ -386,8 +441,15 @@ int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
 	char *local_name = NULL;
 	extern int am_sender;
 	extern int list_only;
+	extern int remote_version;
+
+	set_nonblocking(f_in);
+	set_nonblocking(f_out);
 
 	setup_protocol(f_out,f_in);
+
+	if (remote_version >= 23)
+		io_start_multiplex_in(f_in);
 	
 	if (am_sender) {
 		extern int cvs_exclude;
@@ -409,6 +471,10 @@ int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
 			wait_process(pid, &status);
 		}
 		report(-1);
+		if (remote_version >= 24) {
+			/* final goodbye message */		
+			read_int(f_in);
+		}
 		exit_cleanup(status);
 	}
 
@@ -566,6 +632,10 @@ static RETSIGTYPE sigusr1_handler(int val) {
 	exit_cleanup(RERR_SIGNAL);
 }
 
+static RETSIGTYPE sigusr2_handler(int val) {
+	_exit(0);
+}
+
 int main(int argc,char *argv[])
 {       
 	extern int am_root;
@@ -575,6 +645,7 @@ int main(int argc,char *argv[])
 	extern int am_server;
 
 	signal(SIGUSR1, sigusr1_handler);
+	signal(SIGUSR2, sigusr2_handler);
 
 	starttime = time(NULL);
 	am_root = (getuid() == 0);
@@ -630,6 +701,8 @@ int main(int argc,char *argv[])
 #endif
 
 	if (am_server) {
+		set_nonblocking(STDIN_FILENO);
+		set_nonblocking(STDOUT_FILENO);
 		start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv);
 	}