From: nishi <nishi@d4a5a174-5a4a-5b4b-b672-37683c10d7d5>
Date: Sat, 18 May 2024 09:23:40 +0000 (+0000)
Subject: check the signature
X-Git-Url: http://10.10.0.4:5575/?a=commitdiff_plain;h=9ef8ffb90c20beb2fd78c38c06479c98558415cf;p=dataworks.git

check the signature

git-svn-id: file:///raid/svn-main/nishi-dataworks/trunk@27 d4a5a174-5a4a-5b4b-b672-37683c10d7d5
---

diff --git a/Library/database.c b/Library/database.c
index dbb0c63..9f480cb 100644
--- a/Library/database.c
+++ b/Library/database.c
@@ -62,6 +62,12 @@ struct dataworks_db* dataworks_database_open(const char* fname) {
 	if(fp == NULL) {
 		return NULL;
 	}
+	char readsig[sizeof(sig)];
+	fread(readsig, 1, sizeof(sig), fp);
+	if(memcmp(readsig, sig, sizeof(sig)) != 0){
+		fclose(fp);
+		return NULL;
+	}
 	struct dataworks_db* db = malloc(sizeof(*db));
 	db->fp = fp;
 	return db;