src/startup-lsb.c

   1 /* $Id$
   2  * UDP Gateway utility startup scripts support using lsb(8)
   3  * Copyright (C) 2004 Jan Kratochvil <project-udpgate@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include <glib/gmessages.h>
  23 #include <stdlib.h>
  24 #include <sys/types.h>
  25 #include <sys/wait.h>
  26 #include <unistd.h>
  27 #include <glib/gmem.h>
  28 #include <unistd.h>
  29 #include <string.h>
  30 #include <sys/stat.h>
  31
  32 #include "startup-lsb.h"        /* self */
  33
  34 #ifdef ENABLE_BUNDLE
  35 #include "bundle-util.h"
  36 #endif
  37
  38
  39 /* Config: */
  40 /* Do not: /etc/rc.d/init.d/...
  41  * to comply with http://www.linuxbase.org/spec/booksets/LSB-Core/LSB-Core.html#INITSRCINSTRM
  42  */
  43 #define INIT_D_PATHNAME G_STRINGIFY(SYSCONFDIR) "/init.d/" PACKAGE
  44
  45 #define COMMAND_INSTALL_INIT_D "/usr/lib/lsb/install_initd"
  46 #define COMMAND_REMOVE_INIT_D  "/usr/lib/lsb/remove_initd"
  47
  48
  49 #define STATUS_0_1(status) ( \
  50                 !(WIFEXITED((status)) && (WEXITSTATUS((status))==0 || WEXITSTATUS((status))==1) \
  51                                                 && !WIFSIGNALED((status)) \
  52                                                 && !WIFSTOPPED((status))) \
  53                                 ? -1 : WEXITSTATUS((status)))
  54
  55 static gboolean chkexec(const gchar *binary)
  56 {
  57 struct stat statbuf;
  58
  59         g_return_val_if_fail(binary!=NULL,FALSE);
  60
  61         if (stat(COMMAND_INSTALL_INIT_D,&statbuf))
  62                 return FALSE;
  63         if ((statbuf.st_mode&(S_IFMT|0111))!=(S_IFREG|0111))
  64                 return FALSE;
  65
  66         return TRUE;
  67 }
  68
  69
  70 static gboolean udpgate_startup_lsb_init(UdpgateStartup *udpgate_startup)
  71 {
  72         g_return_val_if_fail(UDPGATE_IS_STARTUP_LSB(udpgate_startup),FALSE);
  73
  74         /* LSB compliant 'query' is not standardized. */
  75         if (chkexec(COMMAND_INSTALL_INIT_D) && chkexec(COMMAND_REMOVE_INIT_D))
  76                 return TRUE;
  77         return FALSE;
  78 }
  79
  80 static gboolean udpgate_startup_lsb_query(UdpgateStartup *udpgate_startup,gboolean *is_on)
  81 {
  82         g_return_val_if_fail(UDPGATE_IS_STARTUP_LSB(udpgate_startup),FALSE);
  83
  84         /* LSB compliant 'query' is not standardized. */
  85         return FALSE;
  86 }
  87
  88 static gboolean udpgate_startup_lsb_on(UdpgateStartup *udpgate_startup)
  89 {
  90 const gchar *command=COMMAND_INSTALL_INIT_D " " PACKAGE;
  91 int status;
  92
  93         g_return_val_if_fail(UDPGATE_IS_STARTUP_LSB(udpgate_startup),FALSE);
  94
  95 #ifdef ENABLE_BUNDLE
  96         if (!bundle_util_file_write(
  97                         INIT_D_PATHNAME,        /* pathname */
  98                         PACKAGE ".init",        /* basename */
  99                         0755,   /* pathname_mode */
 100                         TRUE))  /* pathname_backup */
 101                 return FALSE;
 102 #endif /* ENABLE_BUNDLE */
 103
 104         status=system(command);
 105         if (0!=STATUS_0_1(status)) {
 106                 g_warning(_("Error registering automatic program startup by: %s"),command);
 107                 return FALSE;
 108                 }
 109         return TRUE;
 110 }
 111
 112 static gboolean udpgate_startup_lsb_off(UdpgateStartup *udpgate_startup)
 113 {
 114 const gchar *command=COMMAND_REMOVE_INIT_D " " PACKAGE;
 115 int status;
 116
 117         g_return_val_if_fail(UDPGATE_IS_STARTUP_LSB(udpgate_startup),FALSE);
 118
 119         status=system(command);
 120         if (0!=STATUS_0_1(status)) {
 121                 g_warning(_("Error removing program's system startup registrance by: %s"),command);
 122                 return FALSE;
 123                 }
 124
 125 #ifdef ENABLE_BUNDLE
 126         if (!bundle_util_file_remove(INIT_D_PATHNAME,PACKAGE ".init"))
 127                 return FALSE;
 128 #endif /* ENABLE_BUNDLE */
 129
 130         return TRUE;
 131 }
 132
 133 static void udpgate_startup_lsb_class_init (UdpgateStartupLsbClass *class)
 134 {
 135         UdpgateStartupClass *udpgate_startup_class = UDPGATE_STARTUP_CLASS(class);
 136
 137         udpgate_startup_class->init = udpgate_startup_lsb_init;
 138         udpgate_startup_class->query = udpgate_startup_lsb_query;
 139         udpgate_startup_class->on = udpgate_startup_lsb_on;
 140         udpgate_startup_class->off = udpgate_startup_lsb_off;
 141 }
 142
 143 GType udpgate_startup_lsb_get_type(void)
 144 {
 145   static GType udpgate_startup_lsb_type=0;
 146
 147   if (!udpgate_startup_lsb_type) {
 148                 static const GTypeInfo udpgate_startup_lsb_info={
 149                         sizeof(UdpgateStartupLsbClass),
 150                         NULL,           /* base_init */
 151                         NULL,           /* base_finalize */
 152                         (GClassInitFunc)udpgate_startup_lsb_class_init,
 153                         NULL,           /* class_finalize */
 154                         NULL,           /* class_data */
 155                         sizeof(UdpgateStartupLsb),
 156                         0,              /* n_preallocs */
 157                         NULL,           /* instance_init */
 158                         NULL,           /* value_table */
 159       };
 160
 161                 udpgate_startup_lsb_type=g_type_register_static(UDPGATE_TYPE_STARTUP,"UdpgateStartupLsb",
 162                                  &udpgate_startup_lsb_info,0);
 163     }
 164
 165   return udpgate_startup_lsb_type;
 166 }