1 files changed, 5 insertions, 1 deletions
diff --git a/src/libstddjb/ipc_bind_reuse_lock.c b/src/libstddjb/ipc_bind_reuse_lock.c
index aede744..b1bccfd 100644
--- a/src/libstddjb/ipc_bind_reuse_lock.c
+++ b/src/libstddjb/ipc_bind_reuse_lock.c
@@ -4,6 +4,7 @@
 
 #include <string.h>
 #include <unistd.h>
+#include <errno.h>
 #include <sys/socket.h>
 
 #include <skalibs/djbunix.h>
@@ -14,12 +15,15 @@ int ipc_bind_reuse_lock (int s, char const *p, int *fdlock)
   unsigned int opt = 1 ;
   size_t len = strlen(p) ;
   int fd ;
+  int r ;
   char lockname[len + 6] ;
   memcpy(lockname, p, len) ;
   memcpy(lockname + len, ".lock", 6) ;
   fd = openc_create(lockname) ;
   if (fd < 0) return -1 ;
-  if (lock_exnb(fd) < 0) return -1 ;
+  r = fd_lock(fd, 1, 1) ;
+  if (r < 0) return -1 ;
+  if (!r) return (errno = EBUSY, -1) ;
   setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof opt) ;
   unlink(p) ;
   if (ipc_bind(s, p) < 0) return -1 ;