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/*
* gnome-exe-handler.c: Invoked when the user double clicks on an ELF
* file, we need to figure out what to do with it.
*
* Author:
* Miguel de Icaza (miguel@ximian.com)
*/
#include <config.h>
#include <gnome.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
enum {
OK_DIALOG = 0,
YESNO_DIALOG = 1,
WARNING_DIALOG = TRUE,
ERROR_DIALOG = FALSE,
WINDOW_CLOSE = -1,
OK_BUTTON = 0,
YES_BUTTON = 0,
NO_BUTTON = 1
};
static int
message (const char *msg, int type, gboolean warning)
{
GtkWidget *box;
char *b1, *b2, *b3;
int help_button = 0;
int ret;
if (type == YESNO_DIALOG) {
b1 = GNOME_STOCK_BUTTON_YES;
b2 = GNOME_STOCK_BUTTON_NO;
b3 = GNOME_STOCK_BUTTON_HELP;
help_button = 2;
} else /* type == OK_DIALOG */ {
b1 = GNOME_STOCK_BUTTON_OK;
b2 = GNOME_STOCK_BUTTON_HELP;
help_button = 1;
b3 = NULL;
}
box = gnome_message_box_new (msg,
warning ?
GNOME_MESSAGE_BOX_WARNING :
GNOME_MESSAGE_BOX_ERROR,
b1, b2, b3, NULL);
gnome_dialog_set_close (GNOME_DIALOG (box), FALSE);
while ((ret = gnome_dialog_run (GNOME_DIALOG (box))) == help_button) {
GnomeHelpMenuEntry ref
= {"gnome-exe-handler", "index.html"};
gnome_help_display (NULL, &ref);
}
gnome_dialog_close (GNOME_DIALOG (box));
return ret;
}
static void
error (const char *msg)
{
message (msg, OK_DIALOG, ERROR_DIALOG);
exit (1);
}
static void
execute (const char *file)
{
char *msg = g_strdup_printf (
_("Executing arbitrary programs that you downloaded from the network "
"might be dangerous.\n\nAre you sure you want to run `%s'?"), file);
struct stat s;
switch (message (msg, YESNO_DIALOG, WARNING_DIALOG)){
case YES_BUTTON:
if (stat (file, &s) == -1){
error (_("Could not access file permissions"));
}
if (chmod (file, s.st_mode | 00100) == -1){
msg = g_strdup_printf (
_("Could not execute the file `%s' due to a permission problem"),
file);
error (msg);
}
{
char *argv [2];
argv [0] = (char *)file;
argv [1] = NULL;
execv (file, argv);
}
msg = g_strdup_printf (_("Failure at executing `%s'"), file);
error (msg);
case NO_BUTTON:
case WINDOW_CLOSE:
default:
exit (0);
}
}
static void
launch (const char *file)
{
char buffer [64];
int n;
int fd = open (file, O_RDONLY);
if (fd == -1){
char *msg = g_strdup_printf (
_("It was not possible to open the file `%s'"),
file);
error (msg);
}
n = read (fd, &buffer, sizeof (buffer));
if (n == 0){
char *msg = g_strdup_printf (_("The file `%s' is empty"), file);
error (msg);
}
if (n < 0){
char *msg = g_strdup_printf (_("There was an error. `%s' is empty"), file);
error (msg);
}
if (buffer [0] == 0x7f &&
buffer [1] == 'E' &&
buffer [2] == 'L' &&
buffer [3] == 'F'){
unsigned char processor;
/* We got an ELF file, check to see what kind it is */
switch (buffer [16]){
case 1:
case 0:
error (_("This is a library and can not be executed"));
case 2:
break;
case 4:
error (_("The file is a core file and can not be executed"));
default:
error (_("This is an unknown kind of executable"));
}
/*
* This handles executables
*/
processor = buffer [18];
if (
#if defined(__i386__)
(processor == 3)
#elif defined(sparc) || defined(__sparc__) || defined(__sparcv9__)
(processor == 2) || (processor == 18) || (processor == 43)
#elif defined(parisc) || defined (__parisc__)
(processor == 15)
#elif defined(ppc) || defined(__ppc__)
(processor == 20)
#elif defined(__alpha__)
(processor == 41) || (processor == 0x9026)
#elif defined(__superh__)
(processor == 42)
#elif defined(__ia64__)
(processor == 50)
#else
/* On other platforms just assume we're fine */
TRUE
#endif
) {
execute (file);
} else {
error (_("The executable is for a different platform and can not be executed on this system"));
}
}
error (_("This is an unknown kind of executable"));
}
int
main (int argc, char *argv [])
{
poptContext ctx;
const char **files;
/* Initialize the i18n stuff */
bindtextdomain (PACKAGE, GNOMELOCALEDIR);
textdomain (PACKAGE);
gnome_init_with_popt_table ("gnome-exe-handler", VERSION, argc, argv, NULL, 0, &ctx);
files = poptGetArgs (ctx);
while (files && *files){
launch (*files);
files++;
}
return 0;
}
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