bool C4Group_ApplyUpdate(C4Group &hGroup) {
// Process object update group (GRPUP_Entries.txt found)
C4UpdatePackage Upd;
if (hGroup.FindEntry(C4CFN_UpdateEntries))
if (Upd.Load(&hGroup)) {
// Do update check first (ensure packet has everything it needs in order
// to perfom the update)
int iRes = Upd.Check(&hGroup);
switch (iRes) {
// Bad version - checks against version of the applying executable
// (major version must match, minor version must be equal or higher)
case C4UPD_CHK_BAD_VERSION:
fprintf(stderr,
"This update %s can only be applied using version "
"%d.%d.%d.%d or higher.\n",
Upd.Name, Upd.RequireVersion[0], Upd.RequireVersion[1],
Upd.RequireVersion[2], Upd.RequireVersion[3]);
return false;
// Target not found: keep going
case C4UPD_CHK_NO_SOURCE:
fprintf(stderr, "Target %s for update %s not found. Ignoring.\n",
Upd.DestPath, Upd.Name);
return true;
// Target mismatch: abort updating
case C4UPD_CHK_BAD_SOURCE:
fprintf(stderr,
"Target %s incorrect version for update %s. Ignoring.\n",
Upd.DestPath, Upd.Name);
return true;
// Target already updated: keep going
case C4UPD_CHK_ALREADY_UPDATED:
fprintf(stderr, "Target %s already up-to-date at %s.\n", Upd.DestPath,
Upd.Name);
return true;
// Ok to perform update
case C4UPD_CHK_OK:
printf("Updating %s to %s... ", Upd.DestPath, Upd.Name);
// Make sure the user sees the message while the work is in progress
fflush(stdout);
// Execute update
if (Upd.Execute(&hGroup)) {
printf("Ok\n");
return true;
} else {
printf("Failed\n");
return false;
}
// Unknown return value from update
default:
fprintf(stderr, "Unknown error while updating.\n");
return false;
}
}
// Process binary update group (AutoUpdate.txt found, additional binary files
// found)
if (hGroup.EntryCount(C4CFN_UpdateCore))
if (hGroup.EntryCount() - hGroup.EntryCount(C4CFN_UpdateCore) -
hGroup.EntryCount("*.c4u") >
0) {
// Notice: AutoUpdate.txt is currently not processed...
char strEntry[_MAX_FNAME + 1] = "";
StdStrBuf strList;
printf("Updating binaries...\n");
hGroup.ResetSearch();
// Look for binaries
while (hGroup.FindNextEntry("*", strEntry))
// Accept everything except *.c4u, AutoUpdate.txt, and c4group.exe
// (which is assumed not to work under Windows)
if (!WildcardMatch("*.c4u", strEntry) &&
!WildcardMatch(C4CFN_UpdateCore, strEntry) &&
!WildcardMatch("c4group.exe", strEntry)) {
strList += strEntry;
strList += ";";
}
// Extract binaries to current working directory
if (!hGroup.Extract(strList.getData())) return false;
// If extracted file is a group, explode it (this is meant for Clonk.app
// on Mac)
for (int i = 0; SGetModule(strList.getData(), i, strEntry); i++)
if (C4Group_IsGroup(strEntry)) {
printf("Exploding: %s\n", strEntry);
if (!C4Group_ExplodeDirectory(strEntry)) return false;
}
}
// Process any child updates (*.c4u)
if (hGroup.FindEntry("*.c4u")) {
// Process all children
char strEntry[_MAX_FNAME + 1] = "";
C4Group hChild;
hGroup.ResetSearch();
while (hGroup.FindNextEntry("*.c4u", strEntry))
if (hChild.OpenAsChild(&hGroup, strEntry)) {
bool ok = C4Group_ApplyUpdate(hChild);
hChild.Close();
// Failure on child update
if (!ok) return false;
}
}
// Success
return true;
}
bool C4Group_ApplyUpdate(C4Group &hGroup, unsigned long ParentProcessID)
{
// Wait for parent process to terminate (so we can safely replace the executable)
#ifdef _WIN32
if(ParentProcessID)
{
HANDLE ParentProcess = OpenProcess(SYNCHRONIZE, FALSE, ParentProcessID);
if(ParentProcess)
{
// If we couldn't find a handle then either
// a) the process terminated already, which is great.
// b) OpenProcess() failed, which is not so great. But let's still try to do
// the update.
printf("Waiting for parent process to terminate...");
DWORD res = WaitForSingleObject(ParentProcess, 10000);
if(res == WAIT_TIMEOUT)
fprintf(stderr, "Parent process did not terminate after 10 seconds. Continuing...");
}
}
#else
// We could use waitpid on Unix, but we don't need that functionality there anyway...
#endif
// Process object update group (GRPUP_Entries.txt found)
C4UpdatePackage Upd;
if (hGroup.FindEntry(C4CFN_UpdateEntries))
if (Upd.Load(&hGroup))
{
// Do update check first (ensure packet has everything it needs in order to perfom the update)
int iRes = Upd.Check(&hGroup);
switch (iRes)
{
// Bad version - checks against version of the applying executable (major version must match, minor version must be equal or higher)
case C4UPD_CHK_BAD_VERSION:
fprintf(stderr, "This update %s can only be applied using version %d.%d.%d.%d or higher.\n", Upd.Name, Upd.RequireVersion[0], Upd.RequireVersion[1], Upd.RequireVersion[2], Upd.RequireVersion[3]);
return false;
// Target not found: keep going
case C4UPD_CHK_NO_SOURCE:
fprintf(stderr, "Target %s for update %s not found. Ignoring.\n", Upd.DestPath, Upd.Name);
return true;
// Target mismatch: abort updating
case C4UPD_CHK_BAD_SOURCE:
fprintf(stderr, "Target %s incorrect version for update %s. Ignoring.\n", Upd.DestPath, Upd.Name);
return true;
// Target already updated: keep going
case C4UPD_CHK_ALREADY_UPDATED:
fprintf(stderr,"Target %s already up-to-date at %s.\n", Upd.DestPath, Upd.Name);
return true;
// Ok to perform update
case C4UPD_CHK_OK:
printf("Updating %s to %s... ", Upd.DestPath, Upd.Name);
// Make sure the user sees the message while the work is in progress
fflush(stdout);
// Execute update
if (Upd.Execute(&hGroup))
{
printf("Ok\n");
return true;
}
else
{
printf("Failed\n");
return false;
}
// Unknown return value from update
default:
fprintf(stderr,"Unknown error while updating.\n");
return false;
}
}
// Process binary update group (AutoUpdate.txt found, additional binary files found)
if (hGroup.EntryCount(C4CFN_UpdateCore))
if (hGroup.EntryCount() - hGroup.EntryCount(C4CFN_UpdateCore) - hGroup.EntryCount("*.ocu") > 0)
{
// Notice: AutoUpdate.txt is currently not processed...
char strEntry[_MAX_FNAME + 1] = "";
StdStrBuf strList;
printf("Updating binaries...\n");
hGroup.ResetSearch();
// Look for binaries
while (hGroup.FindNextEntry("*", strEntry))
// Accept everything except *.ocu, AutoUpdate.txt, and c4group.exe (which is assumed not to work under Windows)
if (!WildcardMatch("*.ocu", strEntry) && !WildcardMatch(C4CFN_UpdateCore, strEntry) && !WildcardMatch("c4group.exe", strEntry))
{ strList += strEntry; strList += ";"; }
// Extract binaries to current working directory
if (!hGroup.Extract(strList.getData()))
return false;
// If extracted file is a group, explode it (this is meant for Clonk.app on Mac)
for (int i = 0; SGetModule(strList.getData(), i, strEntry); i++)
if (C4Group_IsGroup(strEntry))
{
printf("Exploding: %s\n", strEntry);
if (!C4Group_ExplodeDirectory(strEntry))
return false;
}
}
// Process any child updates (*.ocu)
if (hGroup.FindEntry("*.ocu"))
{
// Process all children
char strEntry[_MAX_FNAME + 1] = "";
C4Group hChild;
hGroup.ResetSearch();
while (hGroup.FindNextEntry("*.ocu", strEntry))
if (hChild.OpenAsChild(&hGroup, strEntry))
{
bool ok = C4Group_ApplyUpdate(hChild, 0);
hChild.Close();
// Failure on child update
if (!ok) return false;
}
}
// Success
return true;
}