Add crc to CC4Group_EntryInfo

4 files changed, 21 insertions, 1 deletions

diff --git a/src/cc4group.c b/src/cc4group.c
index bd0ea1a..0435c72 100644
--- a/src/cc4group.c
+++ b/src/cc4group.c
@@ -3089,6 +3089,20 @@ static bool cc4group_getEntryInfoForEntry(CC4Group* const this, const C4GroupEnt
 		}
 	}
 
+	uint32_t crc = entry->core.CRC;
+	if(entry->core.HasCRC != C4GroupEntryCore_ContentsFileNameCRC)
+	{
+		if(lazy)
+		{
+			crc = 0;
+		}
+		else
+		{
+			cc4group_calculateEntryCRC(this, (C4GroupEntryData*)entry);
+			crc = entry->core.CRC;
+		}
+	}
+
 	C4GroupHeader* headerOrParentHeader = header != NULL ? header : entry->parent != NULL ? entry->parent->header : NULL;
 
 	*info = (CC4Group_EntryInfo){
@@ -3099,7 +3113,8 @@ static bool cc4group_getEntryInfoForEntry(CC4Group* const this, const C4GroupEnt
 		.totalSize = entry->core.Size,
 		.executable = entry->core.Executable ? true : false,
 		.directory = entry->core.Directory ? true : false,
-		.official = headerOrParentHeader != NULL ? C4GroupHeader_isOfficial(headerOrParentHeader) : false
+		.official = headerOrParentHeader != NULL ? C4GroupHeader_isOfficial(headerOrParentHeader) : false,
+		.crc = crc
 	};
 
 	return true;
diff --git a/src/cc4group.h b/src/cc4group.h
index d06f636..f54811b 100644
--- a/src/cc4group.h
+++ b/src/cc4group.h
@@ -107,6 +107,9 @@ typedef struct {
 	// cc4group can modify official groups in the usual ways and can change groups' "official" status through the setOfficial method
 	// users of cc4group should honor and change the "official" status how they think is appropriate (or simply ignore it)
 	bool official;
+
+	// the crc checksum, recalculated to C4GroupEntryCore_ContentsFileNameCRC if it is old or not calculated yet
+	uint32_t crc;
 } CC4Group_EntryInfo;
 
 
diff --git a/src/cppc4group.cpp b/src/cppc4group.cpp
index b76767b..7864413 100644
--- a/src/cppc4group.cpp
+++ b/src/cppc4group.cpp
@@ -410,6 +410,7 @@ namespace {
 		info.executable = entryInfo.executable;
 		info.directory = entryInfo.directory;
 		info.official = entryInfo.official;
+		info.crc = entryInfo.crc;
 
 		return info;
 	}
diff --git a/src/cppc4group.hpp b/src/cppc4group.hpp
index e8f7ba1..2c1f6c1 100644
--- a/src/cppc4group.hpp
+++ b/src/cppc4group.hpp
@@ -50,6 +50,7 @@ public:
 		bool executable;
 		bool directory;
 		bool official;
+		uint32_t crc;
 	};
 
 	// this struct is used in custom tmp memory strategies