X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/0882faa2b21c3e153eda96646f2c91b05cb0c9e8..029c171330dff85dc651060b09ee6e7de8b02a6a:/main.c

diff --git a/main.c b/main.c
index 86a1a55c..4ecf46d1 100644
--- a/main.c
+++ b/main.c
@@ -126,23 +126,11 @@ static void report(int f)
 
 
 /* Start the remote shell.   cmd may be NULL to use the default. */
-/* TODO: When the shell exits, look at its return value, as this may
- * well tell us if something went wrong in trying to connect to the
- * remote machine.  Although it doesn't seem to be specified anywhere,
- * ssh and the shell seem to return these values:
- *
- * 124 if the command exited with status 255
- * 125 if the command is killed by a signal
- * 126 if the command cannot be run
- * 127 if the command is not found
- *
- * and we could use this to give a better explanation if the remote
- * command is not found.
- */
-static int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
+static pid_t do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
 {
 	char *args[100];
-	int i,argc=0, ret;
+	int i,argc=0;
+	pid_t ret;
 	char *tok,*dir=NULL;
 	extern int local_server;
 	extern char *rsync_path;
@@ -484,13 +472,16 @@ void start_server(int f_in, int f_out, int argc, char *argv[])
  * This is called once the connection has been negotiated.  It is used
  * for rsyncd, remote-shell, and local connections.
  */
-int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
+int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
 {
 	struct file_list *flist;
 	int status = 0, status2 = 0;
 	char *local_name = NULL;
 	extern int am_sender;
 	extern int remote_version;
+	extern pid_t cleanup_child_pid;
+
+	cleanup_child_pid = pid;
 
 	set_nonblocking(f_in);
 	set_nonblocking(f_out);
@@ -513,16 +504,16 @@ int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
 			rprintf(FINFO,"file list sent\n");
 
 		send_files(flist,f_out,f_in);
+		if (remote_version >= 24) {
+			/* final goodbye message */		
+			read_int(f_in);
+		}
 		if (pid != -1) {
 			if (verbose > 3)
 				rprintf(FINFO,"client_run waiting on %d\n",pid);
 			io_flush();
 			wait_process(pid, &status);
 		}
-		if (remote_version >= 24) {
-			/* final goodbye message */		
-			read_int(f_in);
-		}
 		report(-1);
 		exit_cleanup(status);
 	}
@@ -553,7 +544,7 @@ int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
 		wait_process(pid, &status);
 	}
 	
-	return status | status2;
+	return MAX(status, status2);
 }
 
 static char *find_colon(char *s)
@@ -583,12 +574,14 @@ static int start_client(int argc, char *argv[])
 	char *shell_machine = NULL;
 	char *shell_path = NULL;
 	char *shell_user = NULL;
-	int pid, ret;
+	int ret;
+	pid_t pid;
 	int f_in,f_out;
 	extern int local_server;
 	extern int am_sender;
 	extern char *shell_cmd;
 	extern int rsync_port;
+	extern int whole_file;
 	char *argv0 = strdup(argv[0]);
 
 	if (strncasecmp(URL_PREFIX, argv0, strlen(URL_PREFIX)) == 0) {
@@ -635,6 +628,8 @@ static int start_client(int argc, char *argv[])
 		p = find_colon(argv[argc-1]);
 		if (!p) {
 			local_server = 1;
+			/* disable "rsync algorithm" when both sides local */
+			whole_file = 1;
 		} else if (p[1] == ':') {
 			*p = 0;
 			return start_socket_client(argv[argc-1], p+2, argc-1, argv);
@@ -699,9 +694,17 @@ static RETSIGTYPE sigusr1_handler(int val) {
 }
 
 static RETSIGTYPE sigusr2_handler(int val) {
+	extern int log_got_error;
+	if (log_got_error) _exit(RERR_PARTIAL);
 	_exit(0);
 }
 
+static RETSIGTYPE sigchld_handler(int val) {
+#ifdef WNOHANG
+	while (waitpid(-1, NULL, WNOHANG) > 0) ;
+#endif
+}
+
 int main(int argc,char *argv[])
 {       
 	extern int am_root;
@@ -709,9 +712,11 @@ int main(int argc,char *argv[])
 	extern int dry_run;
 	extern int am_daemon;
 	extern int am_server;
+	int ret;
 
 	signal(SIGUSR1, sigusr1_handler);
 	signal(SIGUSR2, sigusr2_handler);
+	signal(SIGCHLD, sigchld_handler);
 
 	starttime = time(NULL);
 	am_root = (getuid() == 0);
@@ -734,7 +739,6 @@ int main(int argc,char *argv[])
 		exit_cleanup(RERR_SYNTAX);
 	}
 
-	signal(SIGCHLD,SIG_IGN);
 	signal(SIGINT,SIGNAL_CAST sig_int);
 	signal(SIGPIPE,SIGNAL_CAST sig_int);
 	signal(SIGHUP,SIGNAL_CAST sig_int);
@@ -771,6 +775,8 @@ int main(int argc,char *argv[])
 		start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv);
 	}
 
-	return start_client(argc, argv);
+	ret = start_client(argc, argv);
+	exit_cleanup(ret);
+	return ret;
 }