added patch for sceIoOpenForDriver to be able to redirect eboot.bin

repatch.c

@@ -9,12 +9,35 @@
 #include <vitasdkkern.h>
 #include <taihen.h>
 
-
 #define printf ksceDebugPrintf
 
-static int hooks_uid[2];
-static tai_hook_ref_t ref_hooks[2];
+static int hooks_uid[3];
+static tai_hook_ref_t ref_hooks[3];
 
+static int ksceIoOpen_patched(const char *filename, int flag, SceIoMode mode) {
+	int ret = -1, state;
+	ENTER_SYSCALL(state);
+	SceUID pid = ksceKernelGetProcessId();
+	char titleid[32];
+	ksceKernelGetProcessTitleId(pid, titleid, sizeof(titleid));
+
+	if (memcmp("main", titleid, sizeof("main") - 1)==0) {
+		if (memcmp("ux0:/rePatch", filename, sizeof("ux0:/rePatch") - 1)!=0) {
+			if (strstr(filename, "eboot.bin") != NULL) {
+				char new_path[128];
+				char *old_path = strchr(strchr(filename, '/') + 1, '/') + 1;
+				if(old_path[0] == '/')
+					old_path++;
+				snprintf(new_path, sizeof(new_path), "ux0:/rePatch/%s",old_path);
+				ret = ksceIoOpen(new_path, flag, mode);
+			}
+		}
+	}
+
+	if(ret < 0) ret = TAI_CONTINUE(int, ref_hooks[2], filename, flag, mode);
+	EXIT_SYSCALL(state);
+	return ret;
+}
 
 static int ksceIoOpenForPid_patched(SceUID pid, const char *filename, int flag, SceIoMode mode) {
 	int ret = -1, state;
@@ -36,6 +59,7 @@ static int ksceIoOpenForPid_patched(SceUID pid, const char *filename, int flag,
 	EXIT_SYSCALL(state);
 	return ret;
 }
+
 static int _sceIoGetstat_patched(const char *file, SceIoStat *stat, int r2) {
 	int ret = -1, state;
 	SceIoStat k_stat;
@@ -67,11 +91,13 @@ void _start() __attribute__ ((weak, alias ("module_start")));
 int module_start(SceSize argc, const void *args) {
 	hooks_uid[0] = taiHookFunctionExportForKernel(KERNEL_PID, &ref_hooks[0], "SceIofilemgr", TAI_ANY_LIBRARY, 0xC3D34965, ksceIoOpenForPid_patched);
 	hooks_uid[1] = taiHookFunctionExportForKernel(KERNEL_PID, &ref_hooks[1], "SceIofilemgr", TAI_ANY_LIBRARY, 0x8E7E11F2, _sceIoGetstat_patched);
+	hooks_uid[2] = taiHookFunctionExportForKernel(KERNEL_PID, &ref_hooks[2], "SceIofilemgr", TAI_ANY_LIBRARY, 0x75192972, ksceIoOpen_patched);
 	return SCE_KERNEL_START_SUCCESS;
 }
 
 int module_stop(SceSize argc, const void *args) {
 	if (hooks_uid[0] >= 0) taiHookReleaseForKernel(hooks_uid[0], ref_hooks[0]);   
 	if (hooks_uid[1] >= 0) taiHookReleaseForKernel(hooks_uid[1], ref_hooks[1]);   
+	if (hooks_uid[2] >= 0) taiHookReleaseForKernel(hooks_uid[2], ref_hooks[2]);  
 	return SCE_KERNEL_STOP_SUCCESS;
-}
+}