Make idev, hlink and file_struct + strings use allocation

[rsync/rsync.git] / cleanup.c

diff --git a/cleanup.c b/cleanup.c
index 904fbaa..779f284 100644 (file)
--- 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(void)
+{
+#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
  *
@@ -46,13 +72,13 @@ static char *cleanup_new_fname;
 static struct file_struct *cleanup_file;
 static int cleanup_fd1, cleanup_fd2;
 static struct map_struct *cleanup_buf;
-static int cleanup_pid = 0;
+static pid_t cleanup_pid = 0;
 extern int io_error;
 
 pid_t cleanup_child_pid = -1;
 
 /**
- * Eventually calls exit(), therefore does not return.
+ * Eventually calls exit(), passing @p code, therefore does not return.
  *
  * @param code one of the RERR_* codes from errcode.h.
  **/
@@ -61,6 +87,13 @@ void _exit_cleanup(int code, const char *file, int line)
        int ocode = code;
        extern int keep_partial;
        extern int log_got_error;
+       static int inside_cleanup = 0;
+
+       if (inside_cleanup > 10) {
+               /* prevent the occasional infinite recursion */
+               return;
+       }
+       inside_cleanup++;
 
        signal(SIGUSR1, SIG_IGN);
        signal(SIGUSR2, SIG_IGN);
@@ -85,21 +118,24 @@ void _exit_cleanup(int code, const char *file, int line)
                if (cleanup_fd2 != -1) close(cleanup_fd2);
                finish_transfer(cleanup_new_fname, fname, cleanup_file);
        }
-       io_flush();
+       io_flush(FULL_FLUSH);
        if (cleanup_fname)
                do_unlink(cleanup_fname);
        if (code) {
                kill_all(SIGUSR1);
        }
-       if ((cleanup_pid != 0) && (cleanup_pid == (int) getpid())) {
+       if (cleanup_pid && cleanup_pid == getpid()) {
                char *pidf = lp_pid_file();
                if (pidf && *pidf) {
                        unlink(lp_pid_file());
                }
        }
 
-       if (code == 0 && (io_error || log_got_error)) {
-               code = RERR_PARTIAL;
+       if (code == 0) {
+               if ((io_error & ~IOERR_VANISHED) || log_got_error)
+                       code = RERR_PARTIAL;
+               else if (io_error)
+                       code = RERR_VANISHED;
        }
 
        if (code) log_exit(code, file, line);
@@ -108,6 +144,7 @@ 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);
 }
 
@@ -129,7 +166,7 @@ void cleanup_set(char *fnametmp, char *fname, struct file_struct *file,
        cleanup_fd2 = fd2;
 }
 
-void cleanup_set_pid(int pid)
+void cleanup_set_pid(pid_t pid)
 {
        cleanup_pid = pid;
 }