ROX-Filer/src/main.c

   1 /*
   2  * $Id$
   3  *
   4  * ROX-Filer, filer for the ROX desktop project
   5  * Copyright (C) 2000, 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 char *home_dir;
  62
  63 #define VERSION "ROX-Filer 0.1.16\n"                                    \
  64                 "Copyright (C) 1999 Thomas Leonard.\n"                  \
  65                 "ROX-Filer comes with ABSOLUTELY NO WARRANTY,\n"        \
  66                 "to the extent permitted by law.\n"                     \
  67                 "You may redistribute copies of ROX-Filer\n"            \
  68                 "under the terms of the GNU General Public License.\n"  \
  69                 "For more information about these matters, "            \
  70                 "see the file named COPYING.\n"
  71
  72 #ifdef HAVE_GETOPT_LONG
  73 #  define USAGE   "Try `ROX-Filer/AppRun --help' for more information.\n"
  74 #  define SHORT_ONLY_WARNING ""
  75 #else
  76 #  define USAGE   "Try `ROX-Filer/AppRun -h' for more information.\n"
  77 #  define SHORT_ONLY_WARNING    \
  78                 "NOTE: Your system does not support long options - \n" \
  79                 "you must use the short versions instead.\n\n"
  80 #endif
  81
  82 #define SHORT_OPS "t:b:ohv"
  83
  84 #define HELP "Usage: ROX-Filer/AppRun [OPTION]... [DIR]...\n"           \
  85        "Open filer windows showing each directory listed, or $HOME \n"  \
  86        "if no directories are given.\n\n"                               \
  87        "  -h, --help            display this help and exit\n"                 \
  88        "  -v, --version         display the version information and exit\n"   \
  89        "  -t, --top [DIR]       open DIR as a top-edge panel\n"         \
  90        "  -b, --bottom [DIR]    open DIR as a bottom-edge panel\n"      \
  91        "  -o, --override        override window manager control of panels\n" \
  92        "\n"     SHORT_ONLY_WARNING                                      \
  93        "Report bugs to <tal197@ecs.soton.ac.uk>.\n"
  94
  95 #ifdef HAVE_GETOPT_LONG
  96 static struct option long_opts[] =
  97 {
  98         {"top", 1, NULL, 't'},
  99         {"bottom", 1, NULL, 'b'},
 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         home_dir = g_get_home_dir();
 164
 165         mc_vfs_init();
 166         gtk_init(&argc, &argv);
 167
 168         while (1)
 169         {
 170                 int     c;
 171 #ifdef HAVE_GETOPT_LONG
 172                 int     long_index;
 173                 c = getopt_long(argc, argv, SHORT_OPS,
 174                                 long_opts, &long_index);
 175 #else
 176                 c = getopt(argc, argv, SHORT_OPS);
 177 #endif
 178
 179                 if (c == EOF)
 180                         break;          /* No more options */
 181
 182                 switch (c)
 183                 {
 184                         case 'o':
 185                                 override_redirect = TRUE;
 186                                 break;
 187                         case 'v':
 188                                 printf(VERSION);
 189                                 return EXIT_SUCCESS;
 190                         case 'h':
 191                                 printf(HELP);
 192                                 return EXIT_SUCCESS;
 193                         case 't':
 194                         case 'b':
 195                                 panel_sides = g_list_prepend(panel_sides,
 196                                                         (gpointer) c);
 197                                 panel_dirs = g_list_prepend(panel_dirs,
 198                                                 *optarg == '=' ? optarg + 1
 199                                                         : optarg);
 200                                 break;
 201                         default:
 202                                 printf(USAGE);
 203                                 return EXIT_FAILURE;
 204                 }
 205         }
 206
 207         choices_init("ROX-Filer");
 208
 209         gui_support_init();
 210         pixmaps_init();
 211         dir_init();
 212         menu_init();
 213         dnd_init();
 214         filer_init();
 215         mount_init();
 216         options_init();
 217         savebox_init();
 218         type_init();
 219         action_init();
 220
 221         options_load();
 222
 223         /* Let child processes die */
 224         act.sa_handler = child_died;
 225         sigemptyset(&act.sa_mask);
 226         act.sa_flags = SA_NOCLDSTOP;
 227         sigaction(SIGCHLD, &act, NULL);
 228
 229         /* Ignore SIGPIPE - check for EPIPE errors instead */
 230         act.sa_handler = SIG_IGN;
 231         sigemptyset(&act.sa_mask);
 232         act.sa_flags = 0;
 233         sigaction(SIGPIPE, &act, NULL);
 234
 235         euid = geteuid();
 236         egid = getegid();
 237         ngroups = getgroups(0, NULL);
 238         if (ngroups < 0)
 239                 ngroups = 0;
 240         else if (ngroups > 0)
 241         {
 242                 supplemental_groups = g_malloc(sizeof(gid_t) * ngroups);
 243                 getgroups(ngroups, supplemental_groups);
 244         }
 245
 246         if (euid == 0)
 247         {
 248                 if (get_choice("!!!DANGER!!!",
 249                         "Running ROX-Filer as root is VERY dangerous. If I "
 250                         "had a warranty (I don't) then doing this would "
 251                         "void it", 2,
 252                         "Don't click here", "Quit") != 0)
 253                         exit(EXIT_SUCCESS);
 254         }
 255
 256         if (optind == argc && !panel_dirs)
 257                 filer_opendir(home_dir, PANEL_NO);
 258         else
 259         {
 260                 int      i = optind;
 261                 GList    *dir = panel_dirs;
 262                 GList    *side = panel_sides;
 263
 264                 while (dir)
 265                 {
 266                         int     c = (int) side->data;
 267
 268                         filer_opendir((char *) dir->data,
 269                                         c == 't' ? PANEL_TOP : PANEL_BOTTOM);
 270                         dir = dir->next;
 271                         side = side->next;
 272                 }
 273
 274                 g_list_free(dir);
 275                 g_list_free(side);
 276
 277                 while (i < argc)
 278                         filer_opendir(argv[i++], PANEL_NO);
 279         }
 280
 281         pipe(stderr_pipe);
 282         close_on_exec(stderr_pipe[0], TRUE);
 283         close_on_exec(stderr_pipe[1], TRUE);
 284         gdk_input_add(stderr_pipe[0], GDK_INPUT_READ, stderr_cb, NULL);
 285         to_error_log = stderr_pipe[1];
 286
 287         gtk_main();
 288
 289         return EXIT_SUCCESS;
 290 }