void get_stats(void)
{
PACKFILE *f;
#ifdef ALLEGRO_UNIX
if (stat(opt_filename, &stat_stat)) {
fprintf(stderr, "Error statting %s\n", opt_filename);
err = 1;
return;
}
#endif
f = pack_fopen(opt_filename, F_READ);
if (!f) {
fprintf(stderr, "Error opening %s\n", opt_filename);
err = 1;
return;
}
stat_exe_size = f->normal.todo;
pack_fseek(f, f->normal.todo-8);
if (pack_mgetl(f) != F_EXE_MAGIC) {
stat_hasdata = FALSE;
stat_compressed_size = 0;
stat_uncompressed_size = 0;
pack_fclose(f);
return;
}
stat_hasdata = TRUE;
stat_compressed_size = pack_mgetl(f) - 16;
pack_fclose(f);
f = pack_fopen(opt_filename, F_READ);
if (!f) {
fprintf(stderr, "Error reading %s\n", opt_filename);
err = 1;
return;
}
stat_exe_size = f->normal.todo - stat_compressed_size - 16;
pack_fseek(f, stat_exe_size);
f = pack_fopen_chunk(f, FALSE);
if (!f) {
fprintf(stderr, "Error reading %s\n", opt_filename);
err = 1;
return;
}
stat_uncompressed_size = f->normal.todo;
pack_fclose(f);
}
int detect_it(char *f) {
int sig;
PACKFILE *fn = pack_fopen(f, "rb");
if (fn == NULL)
return FALSE;
sig = pack_mgetl(fn);
if (sig != AL_ID('I','M','P','M')) {
pack_fclose(fn);
return FALSE;
}
pack_fclose(fn);
return TRUE;
}
