From 5c670a186c1f45a2ddfcab00c065f994d8a888f7 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 25 Oct 2006 21:39:42 +0000
Subject: [PATCH]  r9386@Kushana:  nickm | 2006-10-25 17:35:38 -0400  Resolve
 bug 347: translate v0 controller signal numbers into internal signal numbers;
 leave v1 signal numbers alone.

svn:r8828
---
 ChangeLog        |  2 ++
 src/or/control.c | 26 +++++++++++++++-----------
 src/or/main.c    | 18 ------------------
 src/or/or.h      |  1 -
 4 files changed, 17 insertions(+), 30 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 13de42e8f2..0e0734b152 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -64,6 +64,8 @@ Changes in version 0.1.2.3-alpha - 2006-10-??
       requests will now get an error rather than timing out.
     - Resolve two memory leaks when rebuilding the on-disk router cache
       (reported by fookoowa).
+    - Controller signals now work on non-Unix platforms that don't define
+      SIGUSR1 and SIGUSR2 the way we expect.
 
 
 Changes in version 0.1.2.2-alpha - 2006-10-07
diff --git a/src/or/control.c b/src/or/control.c
index 0947ad2a0a..60a233211d 100644
--- a/src/or/control.c
+++ b/src/or/control.c
@@ -1252,6 +1252,18 @@ handle_control_signal(control_connection_t *conn, uint32_t len,
       return 0;
     } else {
       sig = (uint8_t)body[0];
+      switch (sig)
+      {
+      case 1: sig = SIGHUP; break;
+      case 2: sig = SIGINT; break;
+      case 10: sig = SIGUSR1; break;
+      case 12: sig = SIGUSR2; break;
+      case 15: sig = SIGTERM; break;
+      case SIGNEWNYM: break;
+      default:
+        send_control0_error(conn, ERR_SYNTAX, "Unrecognized signal number.");
+        return 0;
+      }
     }
   } else {
     int n = 0;
@@ -1281,17 +1293,9 @@ handle_control_signal(control_connection_t *conn, uint32_t len,
       return 0;
   }
 
-  if (!control_signal_check(sig)) {
-    if (STATE_IS_V0(conn->_base.state))
-      send_control0_error(conn, ERR_SYNTAX, "Unrecognized signal number.");
-    else
-      connection_write_str_to_buf("551 Unable to act on signal\r\n",
-                                  conn);
-  } else {
-    /* Send DONE first, in case the signal makes us shut down. */
-    send_control_done(conn);
-    control_signal_act(sig);
-  }
+  /* Send DONE first, in case the signal makes us shut down. */
+  send_control_done(conn);
+  control_signal_act(sig);
   return 0;
 }
 
diff --git a/src/or/main.c b/src/or/main.c
index 30d5fcc584..0dafa54050 100644
--- a/src/or/main.c
+++ b/src/or/main.c
@@ -1229,24 +1229,6 @@ do_main_loop(void)
   }
 }
 
-/* DOCDOC */
-int
-control_signal_check(int the_signal)
-{
-  switch (the_signal)
-    {
-    case 1:
-    case 2:
-    case 10:
-    case 12:
-    case 15:
-    case SIGNEWNYM:
-      return 1;
-    default:
-      return 0;
-    }
-}
-
 /** Used to implement the SIGNAL control command: if we accept
  * <b>the_signal</b> as a remote pseudo-signal, act on it. */
 /* We don't re-use catch() here because:
diff --git a/src/or/or.h b/src/or/or.h
index 1a58165598..9036ef0192 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -2273,7 +2273,6 @@ void connection_start_writing(connection_t *conn);
 void directory_all_unreachable(time_t now);
 void directory_info_has_arrived(time_t now, int from_cache);
 
-int control_signal_check(int the_signal);
 void control_signal_act(int the_signal);
 void handle_signals(int is_parent);
 void tor_cleanup(void);