ROX-Filer/src/main.c

   1 /*
   2  * $Id$
   3  *
   4  * ROX-Filer, filer for the ROX desktop project
   5  * Copyright (C) 1999, Thomas Leonard, <tal197@ecs.soton.ac.uk>.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  19  * Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27 #include <signal.h>
  28 #include <sys/wait.h>
  29 #include <unistd.h>
  30 #include <fcntl.h>
  31
  32 #ifdef HAVE_GETOPT_LONG
  33 #  include <getopt.h>
  34 #endif
  35
  36 #include <gtk/gtk.h>
  37 #include "collection.h"
  38
  39 #include "main.h"
  40 #include "gui_support.h"
  41 #include "filer.h"
  42 #include "mount.h"
  43 #include "menu.h"
  44 #include "dnd.h"
  45 #include "options.h"
  46 #include "choices.h"
  47 #include "savebox.h"
  48 #include "type.h"
  49 #include "pixmaps.h"
  50 #include "dir.h"
  51 #include "action.h"
  52
  53 int number_of_windows = 0;      /* Quit when this reaches 0 again... */
  54 int to_error_log = -1;          /* Write here to log errors */
  55
  56 uid_t euid;
  57 gid_t egid;
  58 int ngroups;                    /* Number of supplemental groups */
  59 gid_t *supplemental_groups = NULL;
  60
  61 #define VERSION "ROX-Filer 0.1.14\n"                                    \
  62                 "Copyright (C) 1999 Thomas Leonard.\n"                  \
  63                 "ROX-Filer comes with ABSOLUTELY NO WARRANTY,\n"        \
  64                 "to the extent permitted by law.\n"                     \
  65                 "You may redistribute copies of ROX-Filer\n"            \
  66                 "under the terms of the GNU General Public License.\n"  \
  67                 "For more information about these matters, "            \
  68                 "see the file named COPYING.\n"
  69
  70 #ifdef HAVE_GETOPT_LONG
  71 #  define USAGE   "Try `ROX-Filer/AppRun --help' for more information.\n"
  72 #  define SHORT_ONLY_WARNING ""
  73 #else
  74 #  define USAGE   "Try `ROX-Filer/AppRun -h' for more information.\n"
  75 #  define SHORT_ONLY_WARNING    \
  76                 "NOTE: Your system does not support long options - \n" \
  77                 "you must use the short versions instead.\n\n"
  78 #endif
  79
  80 #define HELP "Usage: ROX-Filer/AppRun [OPTION]... [DIR]...\n"           \
  81        "Open filer windows showing each directory listed, or $HOME \n"  \
  82        "if no directories are given.\n\n"                               \
  83        "  -h, --help            display this help and exit\n"                 \
  84        "  -v, --version         display the version information and exit\n"   \
  85        "  -t, --top [DIR]       open DIR as a top-edge panel\n"         \
  86        "  -b, --bottom [DIR]    open DIR as a bottom-edge panel\n"      \
  87        "  -l, --left [DIR]      open DIR as a left-edge panel\n"        \
  88        "  -r, --right [DIR]     open DIR as a right-edge panel\n"       \
  89        "  -o, --override        override window manager control of panels\n" \
  90        "\n"     SHORT_ONLY_WARNING                                      \
  91        "Report bugs to <tal197@ecs.soton.ac.uk>.\n"
  92
  93 #ifdef HAVE_GETOPT_LONG
  94 static struct option long_opts[] =
  95 {
  96         {"top", 1, NULL, 't'},
  97         {"bottom", 1, NULL, 'b'},
  98         {"left", 1, NULL, 'l'},
  99         {"right", 1, NULL, 'r'},
 100         {"override", 0, NULL, 'o'},
 101         {"help", 0, NULL, 'h'},
 102         {"version", 0, NULL, 'v'},
 103         {NULL, 0, NULL, 0},
 104 };
 105 #endif
 106
 107 /* Take control of panels away from WM? */
 108 gboolean override_redirect = FALSE;
 109
 110 static void child_died(int signum)
 111 {
 112         int             status;
 113         int             child;
 114
 115         /* Find out which children exited and allow them to die */
 116         do
 117         {
 118                 child = waitpid(-1, &status, WNOHANG);
 119
 120                 if (child == 0 || child == -1)
 121                         return;
 122
 123                 /* fprintf(stderr, "Child %d exited\n", child); */
 124
 125         } while (1);
 126 }
 127
 128 #define BUFLEN 40
 129 void stderr_cb(gpointer data, gint source, GdkInputCondition condition)
 130 {
 131         char buf[BUFLEN];
 132         static GtkWidget *log = NULL;
 133         static GtkWidget *window = NULL;
 134         ssize_t len;
 135
 136         if (!window)
 137         {
 138                 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 139                 gtk_window_set_title(GTK_WINDOW(window), "ROX-Filer error log");
 140                 gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 141                 gtk_window_set_default_size(GTK_WINDOW(window), 600, 300);
 142                 gtk_signal_connect_object(GTK_OBJECT(window), "delete_event",
 143                                 gtk_widget_hide, GTK_OBJECT(window));
 144                 log = gtk_text_new(NULL, NULL);
 145                 gtk_container_add(GTK_CONTAINER(window), log);
 146         }
 147
 148         if (!GTK_WIDGET_MAPPED(window))
 149                 gtk_widget_show_all(window);
 150
 151         len = read(source, buf, BUFLEN);
 152         if (len > 0)
 153                 gtk_text_insert(GTK_TEXT(log), NULL, NULL, NULL, buf, len);
 154 }
 155
 156 int main(int argc, char **argv)
 157 {
 158         int              stderr_pipe[2];
 159         struct sigaction act;
 160         GList           *panel_dirs = NULL;
 161         GList           *panel_sides = NULL;
 162
 163         gtk_init(&argc, &argv);
 164
 165         while (1)
 166         {
 167                 int     c;
 168 #ifdef HAVE_GETOPT_LONG
 169                 int     long_index;
 170                 c = getopt_long(argc, argv, "t:b:l:r:ohv",
 171                                 long_opts, &long_index);
 172 #else
 173                 c = getopt(argc, argv, "t:b:l:r:ohv");
 174 #endif
 175
 176                 if (c == EOF)
 177                         break;          /* No more options */
 178
 179                 switch (c)
 180                 {
 181                         case 'o':
 182                                 override_redirect = TRUE;
 183                                 break;
 184                         case 'v':
 185                                 printf(VERSION);
 186                                 return EXIT_SUCCESS;
 187                         case 'h':
 188                                 printf(HELP);
 189                                 return EXIT_SUCCESS;
 190                         case 't':
 191                         case 'b':
 192                         case 'l':
 193                         case 'r':
 194                                 panel_sides = g_list_prepend(panel_sides,
 195                                                         (gpointer) c);
 196                                 panel_dirs = g_list_prepend(panel_dirs,
 197                                                 *optarg == '=' ? optarg + 1
 198                                                         : optarg);
 199                                 break;
 200                         default:
 201                                 printf(USAGE);
 202                                 return EXIT_FAILURE;
 203                 }
 204         }
 205
 206         choices_init("ROX-Filer");
 207
 208         gui_support_init();
 209         pixmaps_init();
 210         dir_init();
 211         menu_init();
 212         dnd_init();
 213         filer_init();
 214         mount_init();
 215         options_init();
 216         savebox_init();
 217         type_init();
 218         action_init();
 219
 220         options_load();
 221
 222         /* Let child processes die */
 223         act.sa_handler = child_died;
 224         sigemptyset(&act.sa_mask);
 225         act.sa_flags = SA_NOCLDSTOP;
 226         sigaction(SIGCHLD, &act, NULL);
 227
 228         euid = geteuid();
 229         egid = getegid();
 230         ngroups = getgroups(0, NULL);
 231         if (ngroups < 0)
 232                 ngroups = 0;
 233         else if (ngroups > 0)
 234         {
 235                 supplemental_groups = g_malloc(sizeof(gid_t) * ngroups);
 236                 getgroups(ngroups, supplemental_groups);
 237         }
 238
 239         if (euid == 0)
 240         {
 241                 if (get_choice("!!!DANGER!!!",
 242                         "Running ROX-Filer as root is VERY dangerous. If I "
 243                         "had a warranty (I don't) then doing this would "
 244                         "void it", 2,
 245                         "Don't click here", "Quit") != 0)
 246                         exit(EXIT_SUCCESS);
 247         }
 248
 249         if (optind == argc && !panel_dirs)
 250                 filer_opendir(getenv("HOME"), FALSE, BOTTOM);
 251         else
 252         {
 253                 int      i = optind;
 254                 GList    *dir = panel_dirs;
 255                 GList    *side = panel_sides;
 256
 257                 while (dir)
 258                 {
 259                         int     c = (int) side->data;
 260
 261                         filer_opendir((char *) dir->data, TRUE,
 262                                         c == 't' ? TOP :
 263                                         c == 'b' ? BOTTOM :
 264                                         c == 'l' ? LEFT :
 265                                         RIGHT);
 266                         dir = dir->next;
 267                         side = side->next;
 268                 }
 269
 270                 g_list_free(dir);
 271                 g_list_free(side);
 272
 273                 while (i < argc)
 274                         filer_opendir(argv[i++], FALSE, BOTTOM);
 275         }
 276
 277         pipe(stderr_pipe);
 278         gdk_input_add(stderr_pipe[0], GDK_INPUT_READ, stderr_cb, NULL);
 279         to_error_log = stderr_pipe[1];
 280
 281         gtk_main();
 282
 283         return EXIT_SUCCESS;
 284 }