X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/7d0fe4da7028cae3c4521139fa706d26924b977b..2b2a47383124f9b62834778f61d2ccb1e55f6a0d:/main.c

diff --git a/main.c b/main.c
index ebfadd24..59550013 100644
--- a/main.c
+++ b/main.c
@@ -73,6 +73,7 @@ extern int send_msgs_to_gen;
 extern pid_t cleanup_child_pid;
 extern size_t bwlimit_writemax;
 extern unsigned int module_dirlen;
+extern BOOL we_send_keepalive_messages;
 extern BOOL flist_receiving_enabled;
 extern BOOL shutting_down;
 extern struct stats stats;
@@ -94,7 +95,8 @@ extern filter_rule_list daemon_filter_list;
 
 uid_t our_uid;
 gid_t our_gid;
-int am_generator = 0;
+int am_receiver = 0;  /* Only set to 1 after the receiver/generator fork. */
+int am_generator = 0; /* Only set to 1 after the receiver/generator fork. */
 int local_server = 0;
 int daemon_over_rsh = 0;
 mode_t orig_umask = 0;
@@ -395,7 +397,7 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char **remote_argv, in
 		    int *f_in_p, int *f_out_p)
 {
 	int i, argc = 0;
-	char *args[MAX_ARGS];
+	char *args[MAX_ARGS], *need_to_free = NULL;
 	pid_t pid;
 	int dash_l_set = 0;
 
@@ -406,7 +408,7 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char **remote_argv, in
 			cmd = rsh_env;
 		if (!cmd)
 			cmd = RSYNC_RSH;
-		cmd = strdup(cmd); /*MEMORY LEAK*/
+		cmd = need_to_free = strdup(cmd);
 		if (!cmd)
 			goto oom;
 
@@ -538,6 +540,9 @@ static pid_t do_cmd(char *cmd, char *machine, char *user, char **remote_argv, in
 			send_protected_args(*f_out_p, args);
 	}
 
+	if (need_to_free)
+		free(need_to_free);
+
 	return pid;
 
   oom:
@@ -760,6 +765,8 @@ static void do_server_sender(int f_in, int f_out, int argc, char *argv[])
 	struct file_list *flist;
 	char *dir = argv[0];
 
+	we_send_keepalive_messages = io_timeout != 0 && protocol_version < 31;
+
 	if (DEBUG_GTE(SEND, 1)) {
 		rprintf(FINFO, "server_sender starting pid=%ld\n",
 			(long)getpid());
@@ -848,6 +855,7 @@ static int do_recv(int f_in, int f_out, char *local_name)
 	}
 
 	if (pid == 0) {
+		am_receiver = 1;
 		send_msgs_to_gen = am_server;
 
 		close(error_pipe[0]);
@@ -899,6 +907,7 @@ static int do_recv(int f_in, int f_out, char *local_name)
 	}
 
 	am_generator = 1;
+	we_send_keepalive_messages = io_timeout != 0;
 	flist_receiving_enabled = True;
 
 	io_end_multiplex_in(MPLX_SWITCHING);
@@ -1103,6 +1112,7 @@ int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
 
 	if (am_sender) {
 		keep_dirlinks = 0; /* Must be disabled on the sender. */
+		we_send_keepalive_messages = io_timeout != 0 && protocol_version < 31;
 
 		if (always_checksum
 		 && (log_format_has(stdout_format, 'C')