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 "support.h"
  41 #include "gui_support.h"
  42 #include "filer.h"
  43 #include "mount.h"
  44 #include "menu.h"
  45 #include "dnd.h"
  46 #include "options.h"
  47 #include "choices.h"
  48 #include "savebox.h"
  49 #include "type.h"
  50 #include "pixmaps.h"
  51 #include "dir.h"
  52 #include "action.h"
  53
  54 int number_of_windows = 0;      /* Quit when this reaches 0 again... */
  55 int to_error_log = -1;          /* Write here to log errors */
  56
  57 uid_t euid;
  58 gid_t egid;
  59 int ngroups;                    /* Number of supplemental groups */
  60 gid_t *supplemental_groups = NULL;
  61
  62 #define VERSION "ROX-Filer 0.1.16\n"                                    \
  63                 "Copyright (C) 1999 Thomas Leonard.\n"                  \
  64                 "ROX-Filer comes with ABSOLUTELY NO WARRANTY,\n"        \
  65                 "to the extent permitted by law.\n"                     \
  66                 "You may redistribute copies of ROX-Filer\n"            \
  67                 "under the terms of the GNU General Public License.\n"  \
  68                 "For more information about these matters, "            \
  69                 "see the file named COPYING.\n"
  70
  71 #ifdef HAVE_GETOPT_LONG
  72 #  define USAGE   "Try `ROX-Filer/AppRun --help' for more information.\n"
  73 #  define SHORT_ONLY_WARNING ""
  74 #else
  75 #  define USAGE   "Try `ROX-Filer/AppRun -h' for more information.\n"
  76 #  define SHORT_ONLY_WARNING    \
  77                 "NOTE: Your system does not support long options - \n" \
  78                 "you must use the short versions instead.\n\n"
  79 #endif
  80
  81 #define SHORT_OPS "t:b:ohv"
  82
  83 #define HELP "Usage: ROX-Filer/AppRun [OPTION]... [DIR]...\n"           \
  84        "Open filer windows showing each directory listed, or $HOME \n"  \
  85        "if no directories are given.\n\n"                               \
  86        "  -h, --help            display this help and exit\n"                 \
  87        "  -v, --version         display the version information and exit\n"   \
  88        "  -t, --top [DIR]       open DIR as a top-edge panel\n"         \
  89        "  -b, --bottom [DIR]    open DIR as a bottom-edge panel\n"      \
  90        "  -o, --override        override window manager control of panels\n" \
  91        "\n"     SHORT_ONLY_WARNING                                      \
  92        "Report bugs to <tal197@ecs.soton.ac.uk>.\n"
  93
  94 #ifdef HAVE_GETOPT_LONG
  95 static struct option long_opts[] =
  96 {
  97         {"top", 1, NULL, 't'},
  98         {"bottom", 1, NULL, 'b'},
  99         {"override", 0, NULL, 'o'},
 100         {"help", 0, NULL, 'h'},
 101         {"version", 0, NULL, 'v'},
 102         {NULL, 0, NULL, 0},
 103 };
 104 #endif
 105
 106 /* Take control of panels away from WM? */
 107 gboolean override_redirect = FALSE;
 108
 109 static void child_died(int signum)
 110 {
 111         int             status;
 112         int             child;
 113
 114         /* Find out which children exited and allow them to die */
 115         do
 116         {
 117                 child = waitpid(-1, &status, WNOHANG);
 118
 119                 if (child == 0 || child == -1)
 120                         return;
 121
 122                 /* fprintf(stderr, "Child %d exited\n", child); */
 123
 124         } while (1);
 125 }
 126
 127 #define BUFLEN 40
 128 void stderr_cb(gpointer data, gint source, GdkInputCondition condition)
 129 {
 130         char buf[BUFLEN];
 131         static GtkWidget *log = NULL;
 132         static GtkWidget *window = NULL;
 133         ssize_t len;
 134
 135         if (!window)
 136         {
 137                 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 138                 gtk_window_set_title(GTK_WINDOW(window), "ROX-Filer error log");
 139                 gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 140                 gtk_window_set_default_size(GTK_WINDOW(window), 600, 300);
 141                 gtk_signal_connect_object(GTK_OBJECT(window), "delete_event",
 142                                 gtk_widget_hide, GTK_OBJECT(window));
 143                 log = gtk_text_new(NULL, NULL);
 144                 gtk_container_add(GTK_CONTAINER(window), log);
 145         }
 146
 147         if (!GTK_WIDGET_MAPPED(window))
 148                 gtk_widget_show_all(window);
 149
 150         len = read(source, buf, BUFLEN);
 151         if (len > 0)
 152                 gtk_text_insert(GTK_TEXT(log), NULL, NULL, NULL, buf, len);
 153 }
 154
 155 int main(int argc, char **argv)
 156 {
 157         int              stderr_pipe[2];
 158         struct sigaction act;
 159         GList           *panel_dirs = NULL;
 160         GList           *panel_sides = NULL;
 161
 162         gtk_init(&argc, &argv);
 163
 164         while (1)
 165         {
 166                 int     c;
 167 #ifdef HAVE_GETOPT_LONG
 168                 int     long_index;
 169                 c = getopt_long(argc, argv, SHORT_OPS,
 170                                 long_opts, &long_index);
 171 #else
 172                 c = getopt(argc, argv, SHORT_OPS);
 173 #endif
 174
 175                 if (c == EOF)
 176                         break;          /* No more options */
 177
 178                 switch (c)
 179                 {
 180                         case 'o':
 181                                 override_redirect = TRUE;
 182                                 break;
 183                         case 'v':
 184                                 printf(VERSION);
 185                                 return EXIT_SUCCESS;
 186                         case 'h':
 187                                 printf(HELP);
 188                                 return EXIT_SUCCESS;
 189                         case 't':
 190                         case 'b':
 191                                 panel_sides = g_list_prepend(panel_sides,
 192                                                         (gpointer) c);
 193                                 panel_dirs = g_list_prepend(panel_dirs,
 194                                                 *optarg == '=' ? optarg + 1
 195                                                         : optarg);
 196                                 break;
 197                         default:
 198                                 printf(USAGE);
 199                                 return EXIT_FAILURE;
 200                 }
 201         }
 202
 203         choices_init("ROX-Filer");
 204
 205         gui_support_init();
 206         pixmaps_init();
 207         dir_init();
 208         menu_init();
 209         dnd_init();
 210         filer_init();
 211         mount_init();
 212         options_init();
 213         savebox_init();
 214         type_init();
 215         action_init();
 216
 217         options_load();
 218
 219         /* Let child processes die */
 220         act.sa_handler = child_died;
 221         sigemptyset(&act.sa_mask);
 222         act.sa_flags = SA_NOCLDSTOP;
 223         sigaction(SIGCHLD, &act, NULL);
 224
 225         /* Ignore SIGPIPE - check for EPIPE errors instead */
 226         act.sa_handler = SIG_IGN;
 227         sigemptyset(&act.sa_mask);
 228         act.sa_flags = 0;
 229         sigaction(SIGPIPE, &act, NULL);
 230
 231         euid = geteuid();
 232         egid = getegid();
 233         ngroups = getgroups(0, NULL);
 234         if (ngroups < 0)
 235                 ngroups = 0;
 236         else if (ngroups > 0)
 237         {
 238                 supplemental_groups = g_malloc(sizeof(gid_t) * ngroups);
 239                 getgroups(ngroups, supplemental_groups);
 240         }
 241
 242         if (euid == 0)
 243         {
 244                 if (get_choice("!!!DANGER!!!",
 245                         "Running ROX-Filer as root is VERY dangerous. If I "
 246                         "had a warranty (I don't) then doing this would "
 247                         "void it", 2,
 248                         "Don't click here", "Quit") != 0)
 249                         exit(EXIT_SUCCESS);
 250         }
 251
 252         if (optind == argc && !panel_dirs)
 253                 filer_opendir(getenv("HOME"), PANEL_NO);
 254         else
 255         {
 256                 int      i = optind;
 257                 GList    *dir = panel_dirs;
 258                 GList    *side = panel_sides;
 259
 260                 while (dir)
 261                 {
 262                         int     c = (int) side->data;
 263
 264                         filer_opendir((char *) dir->data,
 265                                         c == 't' ? PANEL_TOP : PANEL_BOTTOM);
 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++], PANEL_NO);
 275         }
 276
 277         pipe(stderr_pipe);
 278         close_on_exec(stderr_pipe[0], TRUE);
 279         close_on_exec(stderr_pipe[1], TRUE);
 280         gdk_input_add(stderr_pipe[0], GDK_INPUT_READ, stderr_cb, NULL);
 281         to_error_log = stderr_pipe[1];
 282
 283         gtk_main();
 284
 285         return EXIT_SUCCESS;
 286 }