4fb4c52acc
Downstream code inside of it will use dladdr() to get path to its own code, in order to infer the runtime Steam installation path from it. Currently, it only gets the path to the canonical symlinks that point to it.
434 lines
11 KiB
C
434 lines
11 KiB
C
#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <dlfcn.h>
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#include <limits.h>
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#include <stdint.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winnls.h"
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#include "wine/debug.h"
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#include "wine/library.h"
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#include "steam_defs.h"
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#include "steamclient_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(steamclient);
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char g_tmppath[PATH_MAX];
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static char *controller_glyphs[512]; /* at least k_EControllerActionOrigin_Count */
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BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, void *reserved)
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{
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TRACE("(%p, %u, %p)\n", instance, reason, reserved);
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switch (reason)
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{
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case DLL_PROCESS_ATTACH:
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DisableThreadLibraryCalls(instance);
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break;
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}
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return TRUE;
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}
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/* returns the number of bytes written to dst, not including the NUL terminator */
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unsigned int steamclient_unix_path_to_dos_path(bool api_result, const char *src, char *dst, uint32 dst_bytes)
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{
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WCHAR *dosW;
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uint32 r;
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if(!dst || !dst_bytes)
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return 0;
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if(!src || !api_result){
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*dst = 0;
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return 0;
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}
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dosW = wine_get_dos_file_name(src);
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*dst = 0;
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if(!dosW){
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WARN("Unable to convert unix filename to DOS: %s\n", src);
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return 0;
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}
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r = WideCharToMultiByte(CP_ACP, 0, dosW, -1, dst, dst_bytes,
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NULL, NULL);
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HeapFree(GetProcessHeap(), 0, dosW);
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return r == 0 ? 0 : r - 1;
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}
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#define IS_ABSOLUTE(x) (*x == '/' || *x == '\\' || (*x && *(x + 1) == ':'))
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/* returns non-zero on success, zero on failure */
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bool steamclient_dos_path_to_unix_path(const char *src, char *dst)
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{
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*dst = 0;
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if(!src || !*src)
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return 0;
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if(IS_ABSOLUTE(src)){
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/* absolute path, use wine conversion */
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WCHAR srcW[PATH_MAX];
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char *unix_path;
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uint32 r;
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r = MultiByteToWideChar(CP_UNIXCP, 0, src, -1, srcW, PATH_MAX);
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if(r == 0)
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return 0;
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unix_path = wine_get_unix_file_name(srcW);
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if(!unix_path){
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WARN("Unable to convert DOS filename to unix: %s\n", src);
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return 0;
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}
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strncpy(dst, unix_path, PATH_MAX);
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HeapFree(GetProcessHeap(), 0, unix_path);
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}else{
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/* relative path, just fix up backslashes */
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const char *s;
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char *d;
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for(s = src, d = dst; *src; ++s, ++d){
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if(*s == '\\')
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*d = '/';
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else
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*d = *s;
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}
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*d = 0;
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}
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return 1;
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}
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const char **steamclient_dos_to_unix_stringlist(const char **src)
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{
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size_t len;
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const char **s;
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char **out, **o;
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WCHAR scratch[PATH_MAX];
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if(!src)
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return NULL;
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len = sizeof(char*); /* NUL */
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for(s = src; *s; ++s)
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len += sizeof(char*);
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out = HeapAlloc(GetProcessHeap(), 0, len);
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for(s = src, o = out; *s; ++s, ++o){
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if(IS_ABSOLUTE(*s)){
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MultiByteToWideChar(CP_UNIXCP, 0, *s, -1, scratch, sizeof(scratch)/sizeof(*scratch));
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*o = wine_get_unix_file_name(scratch);
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}else{
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const char *r;
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char *l;
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*o = HeapAlloc(GetProcessHeap(), 0, strlen(*s) + 1);
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for(r = *s, l = *o; *r; ++l, ++r){
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if(*r == '\\')
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*l = '/';
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else
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*l = *r;
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}
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*l = 0;
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}
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}
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*o = NULL;
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return (const char **)out;
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}
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void steamclient_free_stringlist(const char **out)
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{
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if(out){
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const char **o;
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for(o = out; *o; o++)
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HeapFree(GetProcessHeap(), 0, (char *)*o);
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HeapFree(GetProcessHeap(), 0, out);
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}
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}
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const char *steamclient_isteamcontroller_getglyph(int origin, const char *lin_path)
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{
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if(!lin_path)
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return NULL;
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if(!controller_glyphs[origin])
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controller_glyphs[origin] = HeapAlloc(GetProcessHeap(), 0, PATH_MAX);
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steamclient_unix_path_to_dos_path(1, lin_path, controller_glyphs[origin], PATH_MAX);
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return controller_glyphs[origin];
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}
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#include "win_constructors.h"
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static const struct {
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const char *iface_version;
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void *(*ctor)(void *);
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} constructors[] = {
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#include "win_constructors_table.dat"
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};
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void *create_win_interface(const char *name, void *linux_side)
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{
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int i;
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TRACE("trying to create %s\n", name);
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if(!linux_side)
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return NULL;
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for(i = 0; i < sizeof(constructors) / sizeof(*constructors); ++i){
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if(!strcmp(name, constructors[i].iface_version))
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return constructors[i].ctor(linux_side);
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}
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ERR("Don't recognize interface name: %s\n", name);
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return NULL;
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}
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static void *steamclient_lib;
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static void *(*steamclient_CreateInterface)(const char *name, int *return_code);
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static bool (*steamclient_BGetCallback)(HSteamPipe a, CallbackMsg_t *b, int32 *c);
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static bool (*steamclient_GetAPICallResult)(HSteamPipe, SteamAPICall_t, void *, int, int, bool *);
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static bool (*steamclient_FreeLastCallback)(HSteamPipe);
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static void (*steamclient_ReleaseThreadLocalMemory)(int);
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static int load_steamclient(void)
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{
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char path[PATH_MAX], resolved_path[PATH_MAX];
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if(steamclient_lib)
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return 1;
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#ifdef __APPLE__
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if(getenv("STEAM_COMPAT_CLIENT_INSTALL_PATH")){
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snprintf(path, PATH_MAX, "%s/steamclient.dylib", getenv("STEAM_COMPAT_CLIENT_INSTALL_PATH"));
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}else{
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WARN("Old Steam client, falling back to DYLD environment to locate native steamclient library\n");
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strcpy(path, "steamclient.dylib");
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}
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#else
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#ifdef _WIN64
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snprintf(path, PATH_MAX, "%s/.steam/sdk64/steamclient.so", getenv("HOME"));
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#else
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snprintf(path, PATH_MAX, "%s/.steam/sdk32/steamclient.so", getenv("HOME"));
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#endif
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if (realpath(path, resolved_path)){
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strncpy(path, resolved_path, PATH_MAX);
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path[PATH_MAX - 1] = 0;
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}
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#endif
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steamclient_lib = wine_dlopen(path, RTLD_NOW, NULL, 0);
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if(!steamclient_lib){
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ERR("unable to load native steamclient library\n");
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return 0;
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}
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steamclient_CreateInterface = wine_dlsym(steamclient_lib, "CreateInterface", NULL, 0);
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if(!steamclient_CreateInterface){
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ERR("unable to load CreateInterface method\n");
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return 0;
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}
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steamclient_BGetCallback = wine_dlsym(steamclient_lib, "Steam_BGetCallback", NULL, 0);
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if(!steamclient_BGetCallback){
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ERR("unable to load BGetCallback method\n");
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return 0;
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}
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steamclient_GetAPICallResult = wine_dlsym(steamclient_lib, "Steam_GetAPICallResult", NULL, 0);
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if(!steamclient_GetAPICallResult){
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ERR("unable to load GetAPICallResult method\n");
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return 0;
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}
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steamclient_FreeLastCallback = wine_dlsym(steamclient_lib, "Steam_FreeLastCallback", NULL, 0);
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if(!steamclient_FreeLastCallback){
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ERR("unable to load FreeLastCallback method\n");
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return 0;
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}
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steamclient_ReleaseThreadLocalMemory = wine_dlsym(steamclient_lib, "Steam_ReleaseThreadLocalMemory", NULL, 0);
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if(!steamclient_ReleaseThreadLocalMemory){
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ERR("unable to load ReleaseThreadLocalMemory method\n");
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return 0;
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}
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return 1;
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}
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void *CDECL CreateInterface(const char *name, int *return_code)
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{
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TRACE("name: %s, return_code: %p\n", name, return_code);
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if(!load_steamclient())
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return NULL;
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return create_win_interface(name, steamclient_CreateInterface(name, return_code));
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}
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#include "cb_converters.h"
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#pragma pack( push, 8 )
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struct winCallbackMsg_t
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{
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HSteamUser m_hSteamUser;
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int m_iCallback;
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uint8 *m_pubParam;
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int m_cubParam;
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} __attribute__ ((ms_struct));
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#pragma pack( pop )
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static void *last_cb = NULL;
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bool CDECL Steam_BGetCallback(HSteamPipe pipe, struct winCallbackMsg_t *win_msg, int32 *ignored)
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{
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bool ret;
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CallbackMsg_t lin_msg;
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TRACE("%u, %p, %p\n", pipe, win_msg, ignored);
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if(!load_steamclient())
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return 0;
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ret = steamclient_BGetCallback(pipe, &lin_msg, ignored);
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if(ret){
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BOOL need_free = TRUE;
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win_msg->m_hSteamUser = lin_msg.m_hSteamUser;
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win_msg->m_iCallback = lin_msg.m_iCallback;
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switch(win_msg->m_iCallback | (lin_msg.m_cubParam << 16)){
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#include "cb_converters.dat"
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default:
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/* structs are compatible */
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need_free = FALSE;
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win_msg->m_cubParam = lin_msg.m_cubParam;
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win_msg->m_pubParam = lin_msg.m_pubParam;
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break;
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}
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if(need_free)
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last_cb = win_msg->m_pubParam;
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}
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return ret;
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}
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static int get_callback_len(int cb)
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{
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switch(cb){
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#include "cb_getapi_sizes.dat"
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}
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return 0;
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}
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bool do_cb_wrap(HSteamPipe pipe, void *linux_side,
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bool (*cpp_func)(void *, SteamAPICall_t, void *, int, int, bool *),
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SteamAPICall_t call, void *callback, int callback_len, int cb_expected, bool *failed)
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{
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void *lin_callback = NULL;
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int lin_callback_len;
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bool ret;
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lin_callback_len = get_callback_len(cb_expected);
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if(!lin_callback_len){
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/* structs are compatible, pass on through */
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if(!cpp_func){
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if(!load_steamclient())
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return 0;
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return steamclient_GetAPICallResult(pipe, call, callback, callback_len, cb_expected, failed);
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}
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return cpp_func(linux_side, call, callback, callback_len, cb_expected, failed);
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}
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/* structs require conversion */
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lin_callback = HeapAlloc(GetProcessHeap(), 0, lin_callback_len);
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if(!cpp_func){
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if(!load_steamclient())
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return 0;
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ret = steamclient_GetAPICallResult(pipe, call, lin_callback, lin_callback_len, cb_expected, failed);
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}else
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ret = cpp_func(linux_side, call, lin_callback, lin_callback_len, cb_expected, failed);
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if(ret){
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switch(cb_expected){
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#include "cb_getapi_table.dat"
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}
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}
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HeapFree(GetProcessHeap(), 0, lin_callback);
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return ret;
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}
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bool CDECL Steam_GetAPICallResult(HSteamPipe pipe, SteamAPICall_t call,
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void *callback, int callback_len, int cb_expected, bool *failed)
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{
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TRACE("%u, x, %p, %u, %u, %p\n", pipe, callback, callback_len, cb_expected, failed);
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return do_cb_wrap(pipe, NULL, NULL, call, callback, callback_len, cb_expected, failed);
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}
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bool CDECL Steam_FreeLastCallback(HSteamPipe pipe)
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{
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TRACE("%u\n", pipe);
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if(!load_steamclient())
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return 0;
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HeapFree(GetProcessHeap(), 0, last_cb);
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last_cb = NULL;
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return steamclient_FreeLastCallback(pipe);
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}
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void CDECL Steam_ReleaseThreadLocalMemory(int bThreadExit)
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{
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TRACE("%d\n", bThreadExit);
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if(!load_steamclient())
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return;
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steamclient_ReleaseThreadLocalMemory(bThreadExit);
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}
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void CDECL Breakpad_SteamMiniDumpInit(uint32_t a, const char *b, const char *c)
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{
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TRACE("\n");
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}
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void CDECL Breakpad_SteamSetAppID(uint32_t appid)
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{
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TRACE("\n");
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}
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int CDECL Breakpad_SteamSetSteamID(uint64_t steamid)
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{
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TRACE("\n");
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return 1;
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}
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int CDECL Breakpad_SteamWriteMiniDumpSetComment(const char *comment)
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{
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TRACE("\n");
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return 1;
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}
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void CDECL Breakpad_SteamWriteMiniDumpUsingExceptionInfoWithBuildId(int a, int b)
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{
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TRACE("\n");
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}
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