-/* Start the remote shell. */
-/* 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)
+/**
+ * If our C library can get malloc statistics, then show them to FINFO
+ **/
+static void show_malloc_stats(void)
+{
+#ifdef HAVE_MALLINFO
+ struct mallinfo mi;
+ extern int am_server;
+ extern int am_sender;
+ extern int am_daemon;
+
+ mi = mallinfo();
+
+ rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n",
+ getpid(),
+ am_server ? "server " : "",
+ am_daemon ? "daemon " : "",
+ am_sender ? "sender" : "receiver");
+ rprintf(FINFO, " arena: %10d (bytes from sbrk)\n", mi.arena);
+ rprintf(FINFO, " ordblks: %10d (chunks not in use)\n", mi.ordblks);
+ rprintf(FINFO, " smblks: %10d\n", mi.smblks);
+ rprintf(FINFO, " hblks: %10d (chunks from mmap)\n", mi.hblks);
+ rprintf(FINFO, " hblkhd: %10d (bytes from mmap)\n", mi.hblkhd);
+ rprintf(FINFO, " usmblks: %10d\n", mi.usmblks);
+ rprintf(FINFO, " fsmblks: %10d\n", mi.fsmblks);
+ rprintf(FINFO, " uordblks: %10d (bytes used)\n", mi.uordblks);
+ rprintf(FINFO, " fordblks: %10d (bytes free)\n", mi.fordblks);
+ rprintf(FINFO, " keepcost: %10d (bytes in releasable chunk)\n", mi.keepcost);
+#endif /* HAVE_MALLINFO */
+}
+
+
+/* Start the remote shell. cmd may be NULL to use the default. */
+static pid_t do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)