@ -94,7 +94,7 @@ static volatile int internal_libgamemode_loaded = 1;
|
||||
|
||||
/* Typedefs for the functions to load */
|
||||
typedef int (*api_call_return_int)(void);
|
||||
typedef const char *(*api_call_return_cstring)(void);
|
||||
typedef const char* (*api_call_return_cstring)(void);
|
||||
typedef int (*api_call_pid_return_int)(pid_t);
|
||||
|
||||
/* Storage for functors */
|
||||
@ -111,26 +111,26 @@ static api_call_pid_return_int REAL_internal_gamemode_query_status_for = NULL;
|
||||
*
|
||||
* Returns 0 on success and -1 on failure
|
||||
*/
|
||||
__attribute__((always_inline)) static inline int internal_bind_libgamemode_symbol(
|
||||
void *handle, const char *name, void **out_func, size_t func_size, bool required)
|
||||
__attribute__((always_inline)) static inline int internal_bind_libgamemode_symbol(void* handle,
|
||||
const char* name,
|
||||
void** out_func,
|
||||
size_t func_size,
|
||||
bool required)
|
||||
{
|
||||
void *symbol_lookup = NULL;
|
||||
char *dl_error = NULL;
|
||||
void* symbol_lookup = NULL;
|
||||
char* dl_error = NULL;
|
||||
|
||||
/* Safely look up the symbol */
|
||||
symbol_lookup = dlsym(handle, name);
|
||||
dl_error = dlerror();
|
||||
if (required && (dl_error || !symbol_lookup)) {
|
||||
snprintf(internal_gamemode_client_error_string,
|
||||
sizeof(internal_gamemode_client_error_string),
|
||||
"dlsym failed - %s",
|
||||
dl_error);
|
||||
return -1;
|
||||
}
|
||||
/* Safely look up the symbol */
|
||||
symbol_lookup = dlsym(handle, name);
|
||||
dl_error = dlerror();
|
||||
if (required && (dl_error || !symbol_lookup)) {
|
||||
snprintf(internal_gamemode_client_error_string, sizeof(internal_gamemode_client_error_string), "dlsym failed - %s", dl_error);
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Have the symbol correctly, copy it to make it usable */
|
||||
memcpy(out_func, &symbol_lookup, func_size);
|
||||
return 0;
|
||||
/* Have the symbol correctly, copy it to make it usable */
|
||||
memcpy(out_func, &symbol_lookup, func_size);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
@ -140,98 +140,74 @@ __attribute__((always_inline)) static inline int internal_bind_libgamemode_symbo
|
||||
*/
|
||||
__attribute__((always_inline)) static inline int internal_load_libgamemode(void)
|
||||
{
|
||||
/* We start at 1, 0 is a success and -1 is a fail */
|
||||
if (internal_libgamemode_loaded != 1) {
|
||||
return internal_libgamemode_loaded;
|
||||
}
|
||||
/* We start at 1, 0 is a success and -1 is a fail */
|
||||
if (internal_libgamemode_loaded != 1) {
|
||||
return internal_libgamemode_loaded;
|
||||
}
|
||||
|
||||
/* Anonymous struct type to define our bindings */
|
||||
struct binding {
|
||||
const char *name;
|
||||
void **functor;
|
||||
size_t func_size;
|
||||
bool required;
|
||||
} bindings[] = {
|
||||
{ "real_gamemode_request_start",
|
||||
(void **)&REAL_internal_gamemode_request_start,
|
||||
sizeof(REAL_internal_gamemode_request_start),
|
||||
true },
|
||||
{ "real_gamemode_request_end",
|
||||
(void **)&REAL_internal_gamemode_request_end,
|
||||
sizeof(REAL_internal_gamemode_request_end),
|
||||
true },
|
||||
{ "real_gamemode_query_status",
|
||||
(void **)&REAL_internal_gamemode_query_status,
|
||||
sizeof(REAL_internal_gamemode_query_status),
|
||||
false },
|
||||
{ "real_gamemode_error_string",
|
||||
(void **)&REAL_internal_gamemode_error_string,
|
||||
sizeof(REAL_internal_gamemode_error_string),
|
||||
true },
|
||||
{ "real_gamemode_request_start_for",
|
||||
(void **)&REAL_internal_gamemode_request_start_for,
|
||||
sizeof(REAL_internal_gamemode_request_start_for),
|
||||
false },
|
||||
{ "real_gamemode_request_end_for",
|
||||
(void **)&REAL_internal_gamemode_request_end_for,
|
||||
sizeof(REAL_internal_gamemode_request_end_for),
|
||||
false },
|
||||
{ "real_gamemode_query_status_for",
|
||||
(void **)&REAL_internal_gamemode_query_status_for,
|
||||
sizeof(REAL_internal_gamemode_query_status_for),
|
||||
false },
|
||||
};
|
||||
/* Anonymous struct type to define our bindings */
|
||||
struct binding {
|
||||
const char* name;
|
||||
void** functor;
|
||||
size_t func_size;
|
||||
bool required;
|
||||
} bindings[] = {
|
||||
{ "real_gamemode_request_start", (void**)&REAL_internal_gamemode_request_start, sizeof(REAL_internal_gamemode_request_start),
|
||||
true },
|
||||
{ "real_gamemode_request_end", (void**)&REAL_internal_gamemode_request_end, sizeof(REAL_internal_gamemode_request_end), true },
|
||||
{ "real_gamemode_query_status", (void**)&REAL_internal_gamemode_query_status, sizeof(REAL_internal_gamemode_query_status), false },
|
||||
{ "real_gamemode_error_string", (void**)&REAL_internal_gamemode_error_string, sizeof(REAL_internal_gamemode_error_string), true },
|
||||
{ "real_gamemode_request_start_for", (void**)&REAL_internal_gamemode_request_start_for,
|
||||
sizeof(REAL_internal_gamemode_request_start_for), false },
|
||||
{ "real_gamemode_request_end_for", (void**)&REAL_internal_gamemode_request_end_for, sizeof(REAL_internal_gamemode_request_end_for),
|
||||
false },
|
||||
{ "real_gamemode_query_status_for", (void**)&REAL_internal_gamemode_query_status_for,
|
||||
sizeof(REAL_internal_gamemode_query_status_for), false },
|
||||
};
|
||||
|
||||
void *libgamemode = NULL;
|
||||
void* libgamemode = NULL;
|
||||
|
||||
/* Try and load libgamemode */
|
||||
libgamemode = dlopen("libgamemode.so.0", RTLD_NOW);
|
||||
if (!libgamemode) {
|
||||
/* Attempt to load unversioned library for compatibility with older
|
||||
* versions (as of writing, there are no ABI changes between the two -
|
||||
* this may need to change if ever ABI-breaking changes are made) */
|
||||
libgamemode = dlopen("libgamemode.so", RTLD_NOW);
|
||||
if (!libgamemode) {
|
||||
snprintf(internal_gamemode_client_error_string,
|
||||
sizeof(internal_gamemode_client_error_string),
|
||||
"dlopen failed - %s",
|
||||
dlerror());
|
||||
internal_libgamemode_loaded = -1;
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
/* Try and load libgamemode */
|
||||
libgamemode = dlopen("libgamemode.so.0", RTLD_NOW);
|
||||
if (!libgamemode) {
|
||||
/* Attempt to load unversioned library for compatibility with older
|
||||
* versions (as of writing, there are no ABI changes between the two -
|
||||
* this may need to change if ever ABI-breaking changes are made) */
|
||||
libgamemode = dlopen("libgamemode.so", RTLD_NOW);
|
||||
if (!libgamemode) {
|
||||
snprintf(internal_gamemode_client_error_string, sizeof(internal_gamemode_client_error_string), "dlopen failed - %s", dlerror());
|
||||
internal_libgamemode_loaded = -1;
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Attempt to bind all symbols */
|
||||
for (size_t i = 0; i < sizeof(bindings) / sizeof(bindings[0]); i++) {
|
||||
struct binding *binder = &bindings[i];
|
||||
/* Attempt to bind all symbols */
|
||||
for (size_t i = 0; i < sizeof(bindings) / sizeof(bindings[0]); i++) {
|
||||
struct binding* binder = &bindings[i];
|
||||
|
||||
if (internal_bind_libgamemode_symbol(libgamemode,
|
||||
binder->name,
|
||||
binder->functor,
|
||||
binder->func_size,
|
||||
binder->required)) {
|
||||
internal_libgamemode_loaded = -1;
|
||||
return -1;
|
||||
};
|
||||
}
|
||||
if (internal_bind_libgamemode_symbol(libgamemode, binder->name, binder->functor, binder->func_size, binder->required)) {
|
||||
internal_libgamemode_loaded = -1;
|
||||
return -1;
|
||||
};
|
||||
}
|
||||
|
||||
/* Success */
|
||||
internal_libgamemode_loaded = 0;
|
||||
return 0;
|
||||
/* Success */
|
||||
internal_libgamemode_loaded = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Redirect to the real libgamemode
|
||||
*/
|
||||
__attribute__((always_inline)) static inline const char *gamemode_error_string(void)
|
||||
__attribute__((always_inline)) static inline const char* gamemode_error_string(void)
|
||||
{
|
||||
/* If we fail to load the system gamemode, or we have an error string already, return our error
|
||||
* string instead of diverting to the system version */
|
||||
if (internal_load_libgamemode() < 0 || internal_gamemode_client_error_string[0] != '\0') {
|
||||
return internal_gamemode_client_error_string;
|
||||
}
|
||||
/* If we fail to load the system gamemode, or we have an error string already, return our error
|
||||
* string instead of diverting to the system version */
|
||||
if (internal_load_libgamemode() < 0 || internal_gamemode_client_error_string[0] != '\0') {
|
||||
return internal_gamemode_client_error_string;
|
||||
}
|
||||
|
||||
return REAL_internal_gamemode_error_string();
|
||||
return REAL_internal_gamemode_error_string();
|
||||
}
|
||||
|
||||
/**
|
||||
@ -246,22 +222,22 @@ __attribute__((always_inline)) static inline
|
||||
#endif
|
||||
int gamemode_request_start(void)
|
||||
{
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
#ifdef GAMEMODE_AUTO
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
#endif
|
||||
return -1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (REAL_internal_gamemode_request_start() < 0) {
|
||||
if (REAL_internal_gamemode_request_start() < 0) {
|
||||
#ifdef GAMEMODE_AUTO
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
#endif
|
||||
return -1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Redirect to the real libgamemode */
|
||||
@ -272,94 +248,90 @@ __attribute__((always_inline)) static inline
|
||||
#endif
|
||||
int gamemode_request_end(void)
|
||||
{
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
#ifdef GAMEMODE_AUTO
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
#endif
|
||||
return -1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (REAL_internal_gamemode_request_end() < 0) {
|
||||
if (REAL_internal_gamemode_request_end() < 0) {
|
||||
#ifdef GAMEMODE_AUTO
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
fprintf(stderr, "gamemodeauto: %s\n", gamemode_error_string());
|
||||
#endif
|
||||
return -1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Redirect to the real libgamemode */
|
||||
__attribute__((always_inline)) static inline int gamemode_query_status(void)
|
||||
{
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (REAL_internal_gamemode_query_status == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string,
|
||||
sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_query_status missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
if (REAL_internal_gamemode_query_status == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string, sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_query_status missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return REAL_internal_gamemode_query_status();
|
||||
return REAL_internal_gamemode_query_status();
|
||||
}
|
||||
|
||||
/* Redirect to the real libgamemode */
|
||||
__attribute__((always_inline)) static inline int gamemode_request_start_for(pid_t pid)
|
||||
{
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (REAL_internal_gamemode_request_start_for == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string,
|
||||
sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_request_start_for missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
if (REAL_internal_gamemode_request_start_for == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string, sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_request_start_for missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return REAL_internal_gamemode_request_start_for(pid);
|
||||
return REAL_internal_gamemode_request_start_for(pid);
|
||||
}
|
||||
|
||||
/* Redirect to the real libgamemode */
|
||||
__attribute__((always_inline)) static inline int gamemode_request_end_for(pid_t pid)
|
||||
{
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (REAL_internal_gamemode_request_end_for == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string,
|
||||
sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_request_end_for missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
if (REAL_internal_gamemode_request_end_for == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string, sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_request_end_for missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return REAL_internal_gamemode_request_end_for(pid);
|
||||
return REAL_internal_gamemode_request_end_for(pid);
|
||||
}
|
||||
|
||||
/* Redirect to the real libgamemode */
|
||||
__attribute__((always_inline)) static inline int gamemode_query_status_for(pid_t pid)
|
||||
{
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
/* Need to load gamemode */
|
||||
if (internal_load_libgamemode() < 0) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (REAL_internal_gamemode_query_status_for == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string,
|
||||
sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_query_status_for missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
if (REAL_internal_gamemode_query_status_for == NULL) {
|
||||
snprintf(internal_gamemode_client_error_string, sizeof(internal_gamemode_client_error_string),
|
||||
"gamemode_query_status_for missing (older host?)");
|
||||
return -1;
|
||||
}
|
||||
|
||||
return REAL_internal_gamemode_query_status_for(pid);
|
||||
return REAL_internal_gamemode_query_status_for(pid);
|
||||
}
|
||||
|
||||
#endif // CLIENT_GAMEMODE_H
|
||||
#endif // CLIENT_GAMEMODE_H
|
||||
|
Reference in New Issue
Block a user