}
-/*
+/**
* Start a client for either type of remote connection. Work out
* whether the arguments request a remote shell or rsyncd connection,
* and call the appropriate connection function, then run_client.
*
* Calls either start_socket_client (for sockets) or do_cmd and
* client_run (for ssh).
- */
+ **/
static int start_client(int argc, char *argv[])
{
char *p;
p = find_colon(argv[0]);
if (p) {
- if (p[1] == ':') {
+ if (p[1] == ':') { /* double colon */
*p = 0;
return start_socket_client(argv[0], p+2, argc-1, argv+1);
}
#endif
}
+
+/**
+ * This routine catches signals and tries to send them to gdb.
+ *
+ * Because it's called from inside a signal handler it ought not to
+ * use too many library routines.
+ *
+ * @todo Perhaps use "screen -X" instead/as well, to help people
+ * debugging without easy access to X. Perhaps use an environment
+ * variable, or just call a script?
+ *
+ * @todo The /proc/ magic probably only works on Linux (and
+ * Solaris?) Can we be more portable?
+ **/
+#ifdef MAINTAINER_MODE
+static RETSIGTYPE rsync_panic_handler(int UNUSED(whatsig))
+{
+ char cmd_buf[300];
+ int ret;
+ sprintf(cmd_buf,
+ "xterm -display :0 -T Panic -n Panic "
+ "-e gdb /proc/%d/exe %d",
+ getpid(), getpid());
+
+ /* Unless we failed to execute gdb, we allow the process to
+ * continue. I'm not sure if that's right. */
+ ret = system(cmd_buf);
+ if (ret)
+ _exit(ret);
+}
+#endif
+
+
int main(int argc,char *argv[])
{
extern int am_root;
signal(SIGUSR1, sigusr1_handler);
signal(SIGUSR2, sigusr2_handler);
signal(SIGCHLD, sigchld_handler);
+#ifdef MAINTAINER_MODE
+ signal(SIGSEGV, rsync_panic_handler);
+ signal(SIGFPE, rsync_panic_handler);
+ signal(SIGABRT, rsync_panic_handler);
+ signal(SIGBUS, rsync_panic_handler);
+#endif /* def MAINTAINER_MODE */
starttime = time(NULL);
am_root = (getuid() == 0);
ret = start_client(argc, argv);
if (ret == -1)
- exit_cleanup(RERR_STARTCLIENT);
+ exit_cleanup(RERR_STARTCLIENT);
else
- exit_cleanup(ret);
- return ret;
+ exit_cleanup(ret);
+
+ exit(ret);
+ /* NOTREACHED */
}