[Libguestfs] [PATCH] RHEL5 fix: no inotify_init1 in RHEL 5

[Richard W.M. Jones]

-- 
Richard Jones, Emerging Technologies, Red Hat  http://et.redhat.com/~rjones
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>From 82ef93775e63cf08a22c293043dbd333065b7408 Mon Sep 17 00:00:00 2001
From: Richard Jones <rjones at trick.home.annexia.org>
Date: Thu, 6 Aug 2009 15:44:20 +0100
Subject: [PATCH 1/2] RHEL 5: inotify_init1 call did not exist on RHEL 5.

---
 daemon/configure.ac |    2 +-
 daemon/inotify.c    |   22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+), 1 deletions(-)

diff --git a/daemon/configure.ac b/daemon/configure.ac
index 126e125..b038d17 100644
--- a/daemon/configure.ac
+++ b/daemon/configure.ac
@@ -67,7 +67,7 @@ AC_CHECK_LIB([portablexdr],[xdrmem_create],[],[
         ])
 
 dnl Functions which may not be available in older distributions.
-AC_CHECK_FUNCS([futimens listxattr llistxattr getxattr lgetxattr setxattr lsetxattr removexattr lremovexattr])
+AC_CHECK_FUNCS([futimens listxattr llistxattr getxattr lgetxattr setxattr lsetxattr removexattr lremovexattr inotify_init1])
 
 dnl For modified printf, we need glibc either (old-style)
 dnl register_printf_function or (new-style) register_printf_specifier.
diff --git a/daemon/inotify.c b/daemon/inotify.c
index 4bc6f17..1b90f2b 100644
--- a/daemon/inotify.c
+++ b/daemon/inotify.c
@@ -21,6 +21,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
 #include <sys/inotify.h>
 
 #include "../src/guestfs_protocol.h"
@@ -70,11 +72,31 @@ do_inotify_init (int max_events)
     if (do_inotify_close () == -1)
       return -1;
 
+#ifdef HAVE_INOTIFY_INIT1
   inotify_fd = inotify_init1 (IN_NONBLOCK | IN_CLOEXEC);
   if (inotify_fd == -1) {
     reply_with_perror ("inotify_init");
     return -1;
   }
+#else
+  inotify_fd = inotify_init ();
+  if (inotify_fd == -1) {
+    reply_with_perror ("inotify_init");
+    return -1;
+  }
+  if (fcntl (inotify_fd, F_SETFL, O_NONBLOCK) == -1) {
+    reply_with_perror ("fcntl: O_NONBLOCK");
+    close (inotify_fd);
+    inotify_fd = -1;
+    return -1;
+  }
+  if (fcntl (inotify_fd, F_SETFD, FD_CLOEXEC) == -1) {
+    reply_with_perror ("fcntl: FD_CLOEXEC");
+    close (inotify_fd);
+    inotify_fd = -1;
+    return -1;
+  }
+#endif
 
   return 0;
 }
-- 
1.6.2.5