Check return value of write in cc4group_extractEntry

1 files changed, 14 insertions, 5 deletions

diff --git a/src/cc4group.c b/src/cc4group.c
index a9ecb85..85bc48b 100644
--- a/src/cc4group.c
+++ b/src/cc4group.c
@@ -1282,20 +1282,29 @@ static bool cc4group_extractEntry(CC4Group* const this, const C4GroupEntryData*
 	{
 		return false;
 	}
-	write(file, data, root->core.Size);
+
+	bool success = true;
+	if(write(file, data, root->core.Size) != root->core.Size)
+	{
+		SET_ERRNO_ERROR("write: Writing to the target file");
+		success = false;
+	}
 
 	if(close(file) == -1)
 	{
 		fprintf(stderr, "WARNING: close: Closing the extracted file \"%s\" failed: %s\n", targetPath, strerror(errno));
 	}
 
-	struct utimbuf times = {.actime = root->core.Modified, .modtime = root->core.Modified};
-	if(utime(targetPath, &times) == -1)
+	if(success)
 	{
-		fprintf(stderr, "WARNING: utime: Setting modification time for \"%s\" failed: %s\n", targetPath, strerror(errno));
+		struct utimbuf times = {.actime = root->core.Modified, .modtime = root->core.Modified};
+		if(utime(targetPath, &times) == -1)
+		{
+			fprintf(stderr, "WARNING: utime: Setting modification time for \"%s\" failed: %s\n", targetPath, strerror(errno));
+		}
 	}
 
-	return true;
+	return success;
 }
 
 static bool cc4group_extractChildren(CC4Group* const this, const C4GroupEntryData* const root, const char* const targetPath)