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librpxloader
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Add support for RPXLoader_GetPathOfRunningExecutable

This commit is contained in:
Maschell 2023-02-18 09:20:45 +01:00
parent 9a143365bf
commit 278e2b895b
2 changed files with 41 additions and 4 deletions
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20
include/rpxloader/rpxloader.h
View File

@ -15,6 +15,7 @@ typedef enum RPXLoaderStatus {
RPX_LOADER_RESULT_LIB_UNINITIALIZED = -0x20,
RPX_LOADER_RESULT_MODULE_NOT_FOUND = -0x30,
RPX_LOADER_RESULT_MODULE_MISSING_EXPORT = -0x31,
RPX_LOADER_RESULT_NOT_AVAILABLE = -0x40,
RPX_LOADER_RESULT_UNKNOWN_ERROR = -0x100,
} RPXLoaderStatus;
@ -56,7 +57,7 @@ RPXLoaderStatus RPXLoader_GetVersion(uint32_t *outVersion);
* Sets the .rpx or .wuhb that will be loaded the next time the homebrew wrapper application is launched (e.g. Health & Safety or Daily Log).<br>
* When a .wuhb will be loaded, accesses to /vol/content will be redirected to the .wuhb, /vol/save will be redirected to the sd card.<br>
* <br>
* The path is **relative** to the root of the given target device.<br>
* The path is **relative** to the root of the sd card<br>
* <br>
* To launch the prepared RPX call RPXLoader_LaunchPreparedHomebrew if this call was successful.<br>
* <br>
@ -138,6 +139,23 @@ RPXLoaderStatus RPXLoader_DisableContentRedirection();
*/
RPXLoaderStatus RPXLoader_UnmountCurrentRunningBundle();
/**
* Returns the path of the currently running executable <br>
* This function is not guaranteed to succeed, it only works if the executable is loaded via the RPXLoadingModule <br>
* The returned path is relative to the root of the sd card. <br>
* <br>
* Requires API version 2 or higher. <br>
*
* @param outBuffer buffer where the result will be stored
* @param outSize size of outBuffer
* @return RPX_LOADER_RESULT_SUCCESS: The path of the currently running executable has been written to outBuffer
* RPX_LOADER_RESULT_UNSUPPORTED_COMMAND: Command not supported by the currently loaded RPXLoaderModule version.<br>
* RPX_LOADER_RESULT_INVALID_ARGUMENT: The given outBuffer was NULL or outSize was 0 <br>
* RPX_LOADER_RESULT_LIB_UNINITIALIZED: "RPXLoader_Init()" was not called.<br>
* RPX_LOADER_RESULT_NOT_AVAILABLE: The path is not available.<br>
*/
RPXLoaderStatus RPXLoader_GetPathOfRunningExecutable(char *outBuffer, uint32_t outSize);
#ifdef __cplusplus
} // extern "C"
#endif

25
source/rpxloader.cpp
View File

@ -11,9 +11,10 @@ static RPXLoaderStatus (*sRLPrepareLaunchFromSD)(const char *path) = nullptr;
static RPXLoaderStatus (*sRLLaunchPreparedHomebrew)() = nullptr;
static RPXLoaderStatus (*sRLLaunchHomebrew)(const char *bundle_path) = nullptr;
static RPXLoaderStatus (*sRLDisableContentRedirection)() = nullptr;
static RPXLoaderStatus (*sRLEnableContentRedirection)() = nullptr;
static RPXLoaderStatus (*sRLUnmountCurrentRunningBundle)() = nullptr;
static RPXLoaderStatus (*sRLDisableContentRedirection)() = nullptr;
static RPXLoaderStatus (*sRLEnableContentRedirection)() = nullptr;
static RPXLoaderStatus (*sRLUnmountCurrentRunningBundle)() = nullptr;
static RPXLoaderStatus (*sRL_GetPathOfRunningExecutable)(char *outBuffer, uint32_t outSize) = nullptr;
const char *RPXLoader_GetStatusStr(RPXLoaderStatus status) {
switch (status) {
@ -35,6 +36,8 @@ const char *RPXLoader_GetStatusStr(RPXLoaderStatus status) {
return "RPX_LOADER_RESULT_UNSUPPORTED_API_VERSION";
case RPX_LOADER_RESULT_UNSUPPORTED_COMMAND:
return "RPX_LOADER_RESULT_UNSUPPORTED_COMMAND";
case RPX_LOADER_RESULT_NOT_AVAILABLE:
return "RPX_LOADER_RESULT_NOT_AVAILABLE";
}
return "RPX_LOADER_RESULT_UNKNOWN_ERROR";
}
@ -85,6 +88,11 @@ RPXLoaderStatus RPXLoader_InitLibrary() {
sRLUnmountCurrentRunningBundle = nullptr;
}
if (OSDynLoad_FindExport(sModuleHandle, FALSE, "RL_GetPathOfRunningExecutable", (void **) &sRL_GetPathOfRunningExecutable) != OS_DYNLOAD_OK) {
DEBUG_FUNCTION_LINE_WARN("FindExport RL_GetPathOfRunningExecutable failed.");
sRL_GetPathOfRunningExecutable = nullptr;
}
return RPX_LOADER_RESULT_SUCCESS;
}
@ -174,4 +182,15 @@ RPXLoaderStatus RPXLoader_UnmountCurrentRunningBundle() {
}
return reinterpret_cast<decltype(&RPXLoader_UnmountCurrentRunningBundle)>(sRLUnmountCurrentRunningBundle)();
}
RPXLoaderStatus RPXLoader_GetPathOfRunningExecutable(char *outBuffer, uint32_t outSize) {
if (rpxLoaderVersion == RPX_LOADER_MODULE_VERSION_ERROR) {
return RPX_LOADER_RESULT_LIB_UNINITIALIZED;
}
if (sRL_GetPathOfRunningExecutable == nullptr || rpxLoaderVersion < 2) {
return RPX_LOADER_RESULT_UNSUPPORTED_COMMAND;
}
return reinterpret_cast<decltype(&RPXLoader_GetPathOfRunningExecutable)>(sRL_GetPathOfRunningExecutable)(outBuffer, outSize);
}