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Replace older unlaunch when installing

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rmc 2024-04-24 23:13:19 -04:00
parent 2ec324c21f
commit 2c784f28b7
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GPG Key ID: 5633EC10309D77D1
1 changed files with 20 additions and 4 deletions
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24
arm9/src/main.c
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@ -212,6 +212,18 @@ bool patchMainTmd(const char* path)
fclose(launcherTmd); fclose(launcherTmd);
return false; return false;
} }
if (unlaunchFound) {
// Remove unlaunch if it already exists on the main launcher tmd.
// If we don't do this and unlaunch is on the tmd, it will take over and prevent loading HNAA
messageBox(" Unlaunch is already installed \nwith the legacy method\nTrying to remove...\n");
if (ftruncate(fileno(launcherTmd), 520) != 0) {
messageBox("\x1B[31mError:\x1B[33m Failed to remove old unlaunch\n");
fclose(launcherTmd);
return false;
}
fclose(launcherTmd);
return true;
}
fclose(launcherTmd); fclose(launcherTmd);
return true; return true;
} }
@ -238,7 +250,12 @@ bool restoreMainTmd(const char* path)
else if(c != 0x47) else if(c != 0x47)
{ {
if (unlaunchFound) { if (unlaunchFound) {
// Trim the old unlaunch installed TMDs to 520b // Remove unlaunch if it already exists on the main launcher tmd.
// If we don't do this and unlaunch is on the tmd, it will take over and prevent loading HNAA
// This is also a good idea to make sure the tmd is 520b.
// You will have a much higher brick risk if something goes wrong with a tmd over 520b.
// See: http://docs.randommeaninglesscharacters.com/unlaunch.html
messageBox(" Unlaunch was installed with the legacy method\nTrimming tmd\n"); messageBox(" Unlaunch was installed with the legacy method\nTrimming tmd\n");
if (ftruncate(fileno(launcherTmd), 520) != 0) { if (ftruncate(fileno(launcherTmd), 520) != 0) {
messageBox("\x1B[31mError:\x1B[33m Failed to remove unlaunch\n"); messageBox("\x1B[31mError:\x1B[33m Failed to remove unlaunch\n");
@ -535,8 +552,6 @@ int main(int argc, char **argv)
break; break;
} }
// We have to remove write protect otherwise reinstalling will fail. // We have to remove write protect otherwise reinstalling will fail.
if (access(hnaaTmdPath, F_OK) == 0) { if (access(hnaaTmdPath, F_OK) == 0) {
if (!toggleReadOnly(hnaaTmdPath, false)) if (!toggleReadOnly(hnaaTmdPath, false))
@ -624,7 +639,8 @@ int main(int argc, char **argv)
// nothing else has to be done, could be a language patch, or a dev system, the user will know what they have done // nothing else has to be done, could be a language patch, or a dev system, the user will know what they have done
if (hasTitleTmdMatchingLauncher) if (hasTitleTmdMatchingLauncher)
{ {
if(!patchMainTmd(launcherTmdPath)) // Set tmd as writable in case unlaunch was already installed through the old method
if(!toggleReadOnly(launcherTmdPath, false) || !patchMainTmd(launcherTmdPath))
{ {
if(!toggleReadOnly(hnaaTmdPath, false)) if(!toggleReadOnly(hnaaTmdPath, false))
{ {