X-Git-Url: https://git.distorted.org.uk/~mdw/preload-hacks/blobdiff_plain/c0ae47b31fbdf9729f6ea531d674b93252b1b775..97162e5b05244df7dee91813544cd2e1566d881c:/noip.c

diff --git a/noip.c b/noip.c
index fea6f74..45ed9a5 100644
--- a/noip.c
+++ b/noip.c
@@ -63,6 +63,7 @@
 #define UNUSED 0u			/* No sign of anyone using it */
 #define STALE 1u			/* Socket exists, but is abandoned */
 #define USED 16u			/* Socket is in active use */
+#define LISTEN 2u			/* Socket has an active listener */
 
 enum { DENY, ALLOW };			/* ACL verdicts */
 
@@ -680,6 +681,7 @@ static int unix_socket_status(struct sockaddr_un *sun, int quickp)
   FILE *fp = 0;
   size_t len, n;
   int rc;
+  unsigned long f;
   char buf[256];
 
   /* If we can't find the socket node, then it's definitely not in use.  If
@@ -710,6 +712,8 @@ static int unix_socket_status(struct sockaddr_un *sun, int quickp)
     if (n >= len + 2 && buf[n - len - 2] == ' ' && buf[n - 1] == '\n' &&
 	memcmp(buf + n - len - 1, sun->sun_path, len) == 0) {
       rc |= USED;
+      if (sscanf(buf, "%*s %*x %*x %lx", &f) < 0 || (f&0x00010000))
+	rc |= LISTEN;
     }
   }
   if (ferror(fp))