X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/b765ec32b93d8fa78f19a48fbc7cc9066beb488e..b45b059a3dcfcf835a8925c23240a3a49311ca44:/cleanup.c

diff --git a/cleanup.c b/cleanup.c
index b9e9dabe..2a850832 100644
--- a/cleanup.c
+++ b/cleanup.c
@@ -21,6 +21,32 @@
 
 #include "rsync.h"
 
+/**
+ * Close all open sockets and files, allowing a (somewhat) graceful
+ * shutdown() of socket connections.  This eliminates the abortive
+ * TCP RST sent by a Winsock-based system when the close() occurs.
+ **/
+void close_all()
+{
+#ifdef SHUTDOWN_ALL_SOCKETS
+	int max_fd;
+	int fd;
+	int ret;
+	struct stat st;
+
+	max_fd = sysconf(_SC_OPEN_MAX) - 1;
+	for (fd = max_fd; fd >= 0; fd--) {
+		ret = fstat(fd,&st);
+		if (fstat(fd,&st) == 0) {
+			if (is_a_socket(fd)) {
+				ret = shutdown(fd, 2);
+			}
+			ret = close(fd);
+		}
+	}
+#endif
+}
+
 /**
  * @file cleanup.c
  *
@@ -63,11 +89,11 @@ void _exit_cleanup(int code, const char *file, int line)
 	extern int log_got_error;
 	static int inside_cleanup = 0;
 
-	if (inside_cleanup != 0) {
+	if (inside_cleanup > 10) {
 		/* prevent the occasional infinite recursion */
 		return;
 	}
-	inside_cleanup = 1;
+	inside_cleanup++;
 
 	signal(SIGUSR1, SIG_IGN);
 	signal(SIGUSR2, SIG_IGN);
@@ -115,6 +141,7 @@ void _exit_cleanup(int code, const char *file, int line)
 		rprintf(FINFO,"_exit_cleanup(code=%d, file=%s, line=%d): about to call exit(%d)\n", 
 			ocode, file, line, code);
 
+	close_all();
 	exit(code);
 }