rvtr/unlaunch-installer_dev
1
Fork 0
mirror of https://github.com/rvtr/unlaunch-installer_dev.git synced 2026-01-26 13:43:08 -05:00
Code Issues Actions Packages Projects Releases Wiki Activity

Don't write unlaunch tmd if the one already present is the same

Browse Source
This commit is contained in:
Edoardo Lolletti 2024-04-25 22:56:25 +02:00
parent f6a503a2a3
commit f5b54fbd0f
1 changed files with 11 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arm9/src/unlaunch.cpp
View File

@ -165,15 +165,20 @@ bool uninstallUnlaunch(bool retailConsole, const char* retailLauncherTmdPath)
static bool writeUnlaunchTmd(const char* path) static bool writeUnlaunchTmd(const char* path)
{ {
Sha1Digest expectedDigest, actualDigest;
swiSHA1Calc(expectedDigest.data(), unlaunchInstallerBuffer, unlaunchInstallerSize + 520);
if(calculateFileSha1Path(path, actualDigest.data()) && expectedDigest == actualDigest)
{
// the tmd hasn't changed, no need to do anything
return true;
}
FILE* targetTmd = fopen(path, "wb"); FILE* targetTmd = fopen(path, "wb");
if (!targetTmd) if (!targetTmd)
{ {
messageBox("\x1B[31mError:\x1B[33m Failed to open target unlaunch tmd\n"); messageBox("\x1B[31mError:\x1B[33m Failed to open target unlaunch tmd\n");
return false; return false;
} }
Sha1Digest expectedDigest, actualDigest;
swiSHA1Calc(expectedDigest.data(), unlaunchInstallerBuffer, unlaunchInstallerSize + 520);
if(!writeToFile(targetTmd, unlaunchInstallerBuffer, unlaunchInstallerSize + 520)) if(!writeToFile(targetTmd, unlaunchInstallerBuffer, unlaunchInstallerSize + 520))
{ {
@ -182,10 +187,10 @@ static bool writeUnlaunchTmd(const char* path)
messageBox("\x1B[31mError:\x1B[33m Failed write unlaunch to tmd\n"); messageBox("\x1B[31mError:\x1B[33m Failed write unlaunch to tmd\n");
return false; return false;
} }
fclose(targetTmd);
calculateFileSha1Path(path, actualDigest.data());
if(expectedDigest != actualDigest) fclose(targetTmd);
if(!calculateFileSha1Path(path, actualDigest.data()) || expectedDigest != actualDigest)
{ {
remove(path); remove(path);
messageBox("\x1B[31mError:\x1B[33m Unlaunch tmd was not properly written\n"); messageBox("\x1B[31mError:\x1B[33m Unlaunch tmd was not properly written\n");