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 #include <pwd.h>
  32 #include <grp.h>
  33
  34 #ifdef HAVE_GETOPT_LONG
  35 #  include <getopt.h>
  36 #endif
  37
  38 #include <gtk/gtk.h>
  39 #include "collection.h"
  40
  41 #include "main.h"
  42 #include "support.h"
  43 #include "gui_support.h"
  44 #include "filer.h"
  45 #include "mount.h"
  46 #include "menu.h"
  47 #include "dnd.h"
  48 #include "options.h"
  49 #include "choices.h"
  50 #include "type.h"
  51 #include "pixmaps.h"
  52 #include "dir.h"
  53 #include "action.h"
  54
  55 int number_of_windows = 0;      /* Quit when this reaches 0 again... */
  56 int to_error_log = -1;          /* Write here to log errors */
  57
  58 uid_t euid;
  59 gid_t egid;
  60 int ngroups;                    /* Number of supplemental groups */
  61 gid_t *supplemental_groups = NULL;
  62 char *home_dir;
  63
  64 #define VERSION "ROX-Filer 0.1.18\n"                                    \
  65                 "Copyright (C) 1999 Thomas Leonard.\n"                  \
  66                 "ROX-Filer comes with ABSOLUTELY NO WARRANTY,\n"        \
  67                 "to the extent permitted by law.\n"                     \
  68                 "You may redistribute copies of ROX-Filer\n"            \
  69                 "under the terms of the GNU General Public License.\n"  \
  70                 "For more information about these matters, "            \
  71                 "see the file named COPYING.\n"
  72
  73 #ifdef HAVE_GETOPT_LONG
  74 #  define USAGE   "Try `ROX-Filer/AppRun --help' for more information.\n"
  75 #  define SHORT_ONLY_WARNING ""
  76 #else
  77 #  define USAGE   "Try `ROX-Filer/AppRun -h' for more information.\n"
  78 #  define SHORT_ONLY_WARNING    \
  79                 "NOTE: Your system does not support long options - \n" \
  80                 "you must use the short versions instead.\n\n"
  81 #endif
  82
  83 #define SHORT_OPS "t:b:ohv"
  84
  85 #define HELP "Usage: ROX-Filer/AppRun [OPTION]... [DIR]...\n"           \
  86        "Open filer windows showing each directory listed, or $HOME \n"  \
  87        "if no directories are given.\n\n"                               \
  88        "  -h, --help            display this help and exit\n"                 \
  89        "  -v, --version         display the version information and exit\n"   \
  90        "  -t, --top [DIR]       open DIR as a top-edge panel\n"         \
  91        "  -b, --bottom [DIR]    open DIR as a bottom-edge panel\n"      \
  92        "  -o, --override        override window manager control of panels\n" \
  93        "\n"     SHORT_ONLY_WARNING                                      \
  94        "Report bugs to <tal197@ecs.soton.ac.uk>.\n"
  95
  96 #ifdef HAVE_GETOPT_LONG
  97 static struct option long_opts[] =
  98 {
  99         {"top", 1, NULL, 't'},
 100         {"bottom", 1, NULL, 'b'},
 101         {"override", 0, NULL, 'o'},
 102         {"help", 0, NULL, 'h'},
 103         {"version", 0, NULL, 'v'},
 104         {NULL, 0, NULL, 0},
 105 };
 106 #endif
 107
 108 /* Take control of panels away from WM? */
 109 gboolean override_redirect = FALSE;
 110
 111 static void child_died(int signum)
 112 {
 113         int             status;
 114         int             child;
 115
 116         /* Find out which children exited and allow them to die */
 117         do
 118         {
 119                 child = waitpid(-1, &status, WNOHANG);
 120
 121                 if (child == 0 || child == -1)
 122                         return;
 123
 124                 /* fprintf(stderr, "Child %d exited\n", child); */
 125
 126         } while (1);
 127 }
 128
 129 #define BUFLEN 40
 130 void stderr_cb(gpointer data, gint source, GdkInputCondition condition)
 131 {
 132         char buf[BUFLEN];
 133         static GtkWidget *log = NULL;
 134         static GtkWidget *window = NULL;
 135         ssize_t len;
 136
 137         if (!window)
 138         {
 139                 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 140                 gtk_window_set_title(GTK_WINDOW(window), "ROX-Filer error log");
 141                 gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 142                 gtk_window_set_default_size(GTK_WINDOW(window), 600, 300);
 143                 gtk_signal_connect_object(GTK_OBJECT(window), "delete_event",
 144                                 gtk_widget_hide, GTK_OBJECT(window));
 145                 log = gtk_text_new(NULL, NULL);
 146                 gtk_container_add(GTK_CONTAINER(window), log);
 147         }
 148
 149         if (!GTK_WIDGET_MAPPED(window))
 150                 gtk_widget_show_all(window);
 151
 152         len = read(source, buf, BUFLEN);
 153         if (len > 0)
 154                 gtk_text_insert(GTK_TEXT(log), NULL, NULL, NULL, buf, len);
 155 }
 156
 157 int main(int argc, char **argv)
 158 {
 159         int              stderr_pipe[2];
 160         struct sigaction act;
 161         GList           *panel_dirs = NULL;
 162         GList           *panel_sides = NULL;
 163
 164         home_dir = g_get_home_dir();
 165
 166 #ifdef HAVE_LIBVFS
 167         mc_vfs_init();
 168 #endif
 169         gtk_init(&argc, &argv);
 170
 171         while (1)
 172         {
 173                 int     c;
 174 #ifdef HAVE_GETOPT_LONG
 175                 int     long_index;
 176                 c = getopt_long(argc, argv, SHORT_OPS,
 177                                 long_opts, &long_index);
 178 #else
 179                 c = getopt(argc, argv, SHORT_OPS);
 180 #endif
 181
 182                 if (c == EOF)
 183                         break;          /* No more options */
 184
 185                 switch (c)
 186                 {
 187                         case 'o':
 188                                 override_redirect = TRUE;
 189                                 break;
 190                         case 'v':
 191                                 printf(VERSION);
 192                                 return EXIT_SUCCESS;
 193                         case 'h':
 194                                 printf(HELP);
 195                                 return EXIT_SUCCESS;
 196                         case 't':
 197                         case 'b':
 198                                 panel_sides = g_list_prepend(panel_sides,
 199                                                         (gpointer) c);
 200                                 panel_dirs = g_list_prepend(panel_dirs,
 201                                                 *optarg == '=' ? optarg + 1
 202                                                         : optarg);
 203                                 break;
 204                         default:
 205                                 printf(USAGE);
 206                                 return EXIT_FAILURE;
 207                 }
 208         }
 209
 210         choices_init("ROX-Filer");
 211
 212         gui_support_init();
 213         pixmaps_init();
 214         dir_init();
 215         menu_init();
 216         dnd_init();
 217         filer_init();
 218         mount_init();
 219         options_init();
 220         type_init();
 221         action_init();
 222
 223         options_load();
 224
 225         /* Let child processes die */
 226         act.sa_handler = child_died;
 227         sigemptyset(&act.sa_mask);
 228         act.sa_flags = SA_NOCLDSTOP;
 229         sigaction(SIGCHLD, &act, NULL);
 230
 231         /* Ignore SIGPIPE - check for EPIPE errors instead */
 232         act.sa_handler = SIG_IGN;
 233         sigemptyset(&act.sa_mask);
 234         act.sa_flags = 0;
 235         sigaction(SIGPIPE, &act, NULL);
 236
 237         euid = geteuid();
 238         egid = getegid();
 239         ngroups = getgroups(0, NULL);
 240         if (ngroups < 0)
 241                 ngroups = 0;
 242         else if (ngroups > 0)
 243         {
 244                 supplemental_groups = g_malloc(sizeof(gid_t) * ngroups);
 245                 getgroups(ngroups, supplemental_groups);
 246         }
 247
 248         if (euid == 0)
 249         {
 250                 if (get_choice("!!!DANGER!!!",
 251                         "Running ROX-Filer as root is VERY dangerous. If I "
 252                         "had a warranty (I don't) then doing this would "
 253                         "void it", 2,
 254                         "Don't click here", "Quit") != 0)
 255                         exit(EXIT_SUCCESS);
 256         }
 257
 258         if (optind == argc && !panel_dirs)
 259                 filer_opendir(home_dir, PANEL_NO);
 260         else
 261         {
 262                 int      i = optind;
 263                 GList    *dir = panel_dirs;
 264                 GList    *side = panel_sides;
 265
 266                 while (dir)
 267                 {
 268                         int     c = (int) side->data;
 269
 270                         filer_opendir((char *) dir->data,
 271                                         c == 't' ? PANEL_TOP : PANEL_BOTTOM);
 272                         dir = dir->next;
 273                         side = side->next;
 274                 }
 275
 276                 g_list_free(dir);
 277                 g_list_free(side);
 278
 279                 while (i < argc)
 280                         filer_opendir(argv[i++], PANEL_NO);
 281         }
 282
 283         pipe(stderr_pipe);
 284         close_on_exec(stderr_pipe[0], TRUE);
 285         close_on_exec(stderr_pipe[1], TRUE);
 286         gdk_input_add(stderr_pipe[0], GDK_INPUT_READ, stderr_cb, NULL);
 287         to_error_log = stderr_pipe[1];
 288
 289         gtk_main();
 290
 291         return EXIT_SUCCESS;
 292 }