From 7fcfdb481a88274fc8bbab9f7c0bff278bb2e179 Mon Sep 17 00:00:00 2001
From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Mon, 5 Dec 2016 20:55:49 +0100
Subject: [PATCH] uuid plugin: remove support for HAL

HAL has been deprecated for a long time.
---
 README          |  4 ----
 configure.ac    | 28 ----------------------------
 src/Makefile.am |  2 --
 src/uuid.c      | 55 -------------------------------------------------------
 4 files changed, 89 deletions(-)

diff --git a/README b/README
index 7754d87c..2fa89542 100644
--- a/README
+++ b/README
@@ -746,10 +746,6 @@ Prerequisites
     Used by the `gps' plugin.
     <http://developer.berlios.de/projects/gpsd/>
 
-  * libhal (optional)
-    If present, the `uuid' plugin will check for UUID from HAL.
-    <http://hal.freedesktop.org/>
-
   * libi2c-dev (optional)
     Used for the plugin `barometer', provides just the i2c-dev.h header file
     for user space i2c development.
diff --git a/configure.ac b/configure.ac
index 1c8d4db9..dcec7715 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1861,33 +1861,6 @@ fi
 # Checks for libraries begin here
 #
 
-# Check for HAL (hardware abstraction library)
-PKG_CHECK_MODULES([HAL], [hal],
-  [
-    SAVE_LIBS="$LIBS"
-    LIBS="$HAL_LIBS $LIBS"
-    AC_CHECK_LIB([hal], [libhal_device_property_exists],
-      [
-        SAVE_CPPFLAGS="$CPPFLAGS"
-        CPPFLAGS="$HAL_CFLAGS $CPPFLAGS"
-        AC_CHECK_HEADERS([libhal.h],
-        [
-          with_libhal="yes"
-          BUILD_WITH_LIBHAL_CFLAGS="$HAL_CFLAGS"
-          BUILD_WITH_LIBHAL_LIBS="$HAL_LIBS"
-        ])
-        CPPFLAGS="$SAVE_CPPFLAGS"
-      ],
-      [with_libhal="no"]
-    )
-    LIBS="$SAVE_LIBS"
-  ],
-  [with_libhal="no"]
-)
-AC_SUBST(BUILD_WITH_LIBHAL_CFLAGS)
-AC_SUBST(BUILD_WITH_LIBHAL_LIBS)
-
-
 # Check for libpthread
 SAVE_LIBS="$LIBS"
 AC_CHECK_LIB([pthread],
@@ -6635,7 +6608,6 @@ AC_MSG_RESULT([    libganglia  . . . . . $with_libganglia])
 AC_MSG_RESULT([    libgcrypt . . . . . . $with_libgcrypt])
 AC_MSG_RESULT([    libgps  . . . . . . . $with_libgps])
 AC_MSG_RESULT([    libgrpc++ . . . . . . $with_libgrpcpp])
-AC_MSG_RESULT([    libhal  . . . . . . . $with_libhal])
 AC_MSG_RESULT([    libhiredis  . . . . . $with_libhiredis])
 AC_MSG_RESULT([    libi2c-dev  . . . . . $with_libi2c])
 AC_MSG_RESULT([    libiokit  . . . . . . $with_libiokit])
diff --git a/src/Makefile.am b/src/Makefile.am
index a693affc..b48ea279 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1256,8 +1256,6 @@ endif
 if BUILD_PLUGIN_UUID
 pkglib_LTLIBRARIES += uuid.la
 uuid_la_SOURCES = uuid.c
-uuid_la_CFLAGS  = $(AM_CFLAGS) $(BUILD_WITH_LIBHAL_CFLAGS)
-uuid_la_LIBADD  = $(BUILD_WITH_LIBHAL_LIBS)
 uuid_la_LDFLAGS = $(PLUGIN_LDFLAGS)
 endif
 
diff --git a/src/uuid.c b/src/uuid.c
index ad8d4d2e..546d481d 100644
--- a/src/uuid.c
+++ b/src/uuid.c
@@ -33,10 +33,6 @@
 #include <sys/sysctl.h>
 #endif
 
-#if HAVE_LIBHAL_H
-#include <libhal.h>
-#endif
-
 #define UUID_RAW_LENGTH 16
 #define UUID_PRINTABLE_COMPACT_LENGTH (UUID_RAW_LENGTH * 2)
 #define UUID_PRINTABLE_NORMAL_LENGTH (UUID_PRINTABLE_COMPACT_LENGTH + 4)
@@ -127,52 +123,6 @@ static char *uuid_get_from_sysctl(void) {
 }
 #endif
 
-#if HAVE_LIBHAL_H
-
-#define UUID_PATH "/org/freedesktop/Hal/devices/computer"
-#define UUID_PROPERTY "smbios.system.uuid"
-
-static char *uuid_get_from_hal(void) {
-  LibHalContext *ctx;
-
-  DBusError error;
-  DBusConnection *con;
-
-  dbus_error_init(&error);
-
-  if (!(con = dbus_bus_get(DBUS_BUS_SYSTEM, &error)))
-    goto bailout_nobus;
-
-  ctx = libhal_ctx_new();
-  libhal_ctx_set_dbus_connection(ctx, con);
-
-  if (!libhal_ctx_init(ctx, &error))
-    goto bailout;
-
-  if (!libhal_device_property_exists(ctx, UUID_PATH, UUID_PROPERTY, &error))
-    goto bailout;
-
-  char *uuid =
-      libhal_device_get_property_string(ctx, UUID_PATH, UUID_PROPERTY, &error);
-  if (looks_like_a_uuid(uuid))
-    return (uuid);
-
-bailout : {
-  DBusError ctxerror;
-  dbus_error_init(&ctxerror);
-  if (!(libhal_ctx_shutdown(ctx, &ctxerror)))
-    dbus_error_free(&ctxerror);
-}
-
-  libhal_ctx_free(ctx);
-
-bailout_nobus:
-  if (dbus_error_is_set(&error))
-    dbus_error_free(&error);
-  return (NULL);
-}
-#endif
-
 static char *uuid_get_from_file(const char *path) {
   FILE *file;
   char uuid[UUID_PRINTABLE_NORMAL_LENGTH + 1] = "";
@@ -215,11 +165,6 @@ static char *uuid_get_local(void) {
     return (uuid);
 #endif
 
-#if HAVE_LIBHAL_H
-  if ((uuid = uuid_get_from_hal()) != NULL)
-    return (uuid);
-#endif
-
   if ((uuid = uuid_get_from_dmidecode()) != NULL)
     return (uuid);
 
-- 
2.11.0