From a8fc5f8838f85653afe848411c92fb75c96cd5db Mon Sep 17 00:00:00 2001
From: Mikael Magnusson <mikma@users.sourceforge.net>
Date: Tue, 31 Aug 2021 21:38:23 +0200
Subject: Unix: debug

---
 sysdep/unix/io.c   | 30 +++++++++++++++++++++++++++++-
 sysdep/unix/main.c |  3 +++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c
index 892226e8..b36d78c0 100644
--- a/sysdep/unix/io.c
+++ b/sysdep/unix/io.c
@@ -824,6 +824,8 @@ sk_free(resource *r)
 {
   sock *s = (sock *) r;
 
+  log(L_TRACE "sk_free %d %d", s->fd, s->type);
+
   sk_free_bufs(s);
 
 #ifdef HAVE_LIBSSH
@@ -1570,18 +1572,35 @@ sk_open_unix(sock *s, const char *name)
   return 0;
 }
 
+static void hexdump(const char *data, socklen_t size)
+{
+  char buf[1024]="";
+
+  for (unsigned int i = 0; i < size; i++)
+    {
+      sprintf(buf + i*3, "%02x ", data[i]);
+    }
+  log(L_TRACE "sk_connect_unix: %s", buf);
+}
+
 int
 sk_connect_unix(sock *s, const char *name, socklen_t namelen)
 {
   struct sockaddr_un sa;
   int fd;
 
+  log(L_TRACE "sk_connect_unix %d %s", name[0], name + 1);
+
   if (namelen > sizeof(sa.sun_path))
     return -1;
 
+  log(L_TRACE "sk_connect_unix 2");
+
   fd = socket(AF_UNIX, SOCK_STREAM, 0);
   if (fd < 0)
-    return -1;
+    return -2;
+
+  log(L_TRACE "sk_connect_unix 3");
 
   if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0)
   {
@@ -1589,11 +1608,15 @@ sk_connect_unix(sock *s, const char *name, socklen_t namelen)
     return -3;
   }
 
+  log(L_TRACE "sk_connect_unix 4");
+
   /* Path length checked in test_old_bird() */
   memset(&sa, 0, sizeof(sa));
   sa.sun_family = AF_UNIX;
   memcpy(sa.sun_path, name, namelen);
 
+  hexdump((const char*)&sa, sizeof(sa.sun_family) + namelen);
+
   s->fd = fd;
   s->type = SK_UNIX_ACTIVE;
   s->ttx = "";			/* Force s->ttx != s->tpos */
@@ -1606,6 +1629,8 @@ sk_connect_unix(sock *s, const char *name, socklen_t namelen)
     ERR2("connect");
   }
 
+  log(L_TRACE "sk_connect_unix 5");
+
   sk_insert(s);
   return 0;
 
@@ -1980,7 +2005,10 @@ sk_read_noflush(sock *s, int revents)
 	}
       }
       else if (!c)
+      {
+	if (s->type == SK_UNIX) log(L_TRACE "Unix socket nothing to read");
 	s->err_hook(s, 0);
+      }
       else
       {
 	s->rpos += c;
diff --git a/sysdep/unix/main.c b/sysdep/unix/main.c
index f681ab8e..d26e317a 100644
--- a/sysdep/unix/main.c
+++ b/sysdep/unix/main.c
@@ -714,6 +714,7 @@ unlink_pid_file(void)
 void
 cmd_shutdown(void)
 {
+  log_msg(L_INFO "cmd_shutdown");
   if (cli_access_restricted())
     return;
 
@@ -724,6 +725,7 @@ cmd_shutdown(void)
 void
 async_shutdown(void)
 {
+  log_msg(L_INFO "async_shutdown");
   DBG("Shutting down...\n");
   order_shutdown(0);
 }
@@ -731,6 +733,7 @@ async_shutdown(void)
 void
 sysdep_shutdown_done(void)
 {
+  log_msg(L_INFO "sysdep_shutdown_done");
   unlink_pid_file();
   cli_deafen(main_control_socket);
   log_msg(L_FATAL "Shutdown completed");
-- 
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