void* get_xlib_handle()
{
void* ret_handle = NULL;
char library[MAX_LIBRARY_PATH + 1];
const char * possible_locations[] = {
"/usr/lib/libX11.so.6", //default_x11_location
"/usr/lib/x86_64-linux-gnu/libX11.so.6", //debian_x11_location
"/usr/lib/i386-linux-gnu/libX11.so.6", //ubuntu_32bit_x11_location
"/usr/lib64/libX11.so.6", //opensuse_x11_location
"/usr/lib32/libX11.so.6"
};
int locations_len = sizeof(possible_locations) / sizeof(char*);
uint16_t required_lib_arch;
if (is_32bit_system() || is_emulated_32bit()) {
required_lib_arch = EM_386;
} else {
required_lib_arch = EM_X86_64;
}
int suitable_xlib_index = find_xlib_by_arch(possible_locations, locations_len, required_lib_arch);
int found_library = FALSE;
if (suitable_xlib_index >= 0) {
snprintf(library, MAX_LIBRARY_PATH, "%s", possible_locations[suitable_xlib_index]);
found_library = TRUE;
} else {
found_library = find_xlib_by_env(library, required_lib_arch);
}
if (found_library == FALSE) {
const char* desired_arch = (required_lib_arch == EM_386 ? "32-bit" : "64-bit");
fprintf(stderr, "None of the following is a %s version of Xlib:", desired_arch);
int i;
for (i = 0; i < locations_len; i++) {
fprintf(stderr, " %s\n", possible_locations[i]);
}
return NULL;
}
ret_handle = dlopen(library, RTLD_LAZY);
if (ret_handle == NULL) {
fprintf(stderr, "Failed to dlopen %s\n", library);
fprintf(stderr, "dlerror says: %s\n", dlerror());
}
return ret_handle;
}
void* get_xlib_handle()
{
void* ret_handle = NULL;
char library[MAX_LIBRARY_PATH + 1];
// If we're not emulating a 32 bit mode (which is either native 32 bit
// or native 64 bit) - use the ordinary path for libX11
if (is_emulated_32bit() == FALSE) {
snprintf(library, MAX_LIBRARY_PATH, "/usr/lib/libX11.so.6");
} else {
// Use a path that usually contains the 32 bit libs in a 64 bit system.
snprintf(library, MAX_LIBRARY_PATH, "/usr/lib32/libX11.so.6");
}
ret_handle = dlopen(library, RTLD_LAZY);
if (ret_handle == NULL) {
fprintf(stderr, "Failed to dlopen %s\n", library);
fprintf(stderr, "dlerror says: %s\n", dlerror());
}
return ret_handle;
}
int XNextEvent(Display *display, XEvent *outEvent) {
// Code to pull the real function handle from X11 library.
void *handle = NULL;
//This will turn the function proto into a function pointer declaration
int (*real_func)(Display *display, XEvent *outEvent) = NULL;
char library[MAX_LIBRARY_PATH + 1];
// If we're not emulating a 32 bit mode (which is either native 32 bit
// or native 64 bit) - use the ordinary path for libX11
if (is_emulated_32bit() == FALSE) {
snprintf(library, MAX_LIBRARY_PATH, "/usr/lib/libX11.so.6");
} else {
// Use a path that usually contains the 32 bit libs in a 64 bit system.
snprintf(library, MAX_LIBRARY_PATH, "/usr/lib32/libX11.so.6");
}
handle = dlopen(library, RTLD_LAZY);
if (handle == NULL) {
fprintf(stderr, "Failed to dlopen %s\n", library);
fprintf(stderr, "dlerror says: %s\n", dlerror());
return -1;
}
// The real event from XNextEvent
XEvent realEvent;
// Find the real function.
real_func = dlsym(handle, "XNextEvent");
// Invoke the real function.
int rf_ret = real_func(display, &realEvent);
if (should_discard_event(&realEvent))
{
// Fake an event!
fake_visibility_event(outEvent, &realEvent);
} else {
*outEvent = realEvent;
}
return rf_ret;
}
