From 29e361c20603edb593cb59a13ab762583a374bbe Mon Sep 17 00:00:00 2001
From: Nathan Wagner <nw@hydaspes.if.org>
Date: Sat, 17 Sep 2016 02:01:17 -0500
Subject: [PATCH] add error checking

---
 lib/compress.c | 14 ++++++++++++--
 lib/db.c       |  2 ++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/compress.c b/lib/compress.c
index 5101688..2657f6b 100644
--- a/lib/compress.c
+++ b/lib/compress.c
@@ -18,22 +18,31 @@ void *compresslzma(void *buf, size_t bufsize, size_t *len) {
 	size_t outsize;
 	void *outbuf;
 	size_t outlen = 0;
+	int err = LZMA_OK;
 
 	outsize = lzma_stream_buffer_bound(bufsize);
 	outbuf = malloc(outsize);
 	if (!outbuf) {
 		*len = 0;
+		fprintf(stderr, "failed to malloc compression buffer\n");
 		return NULL;
 	}
 	/* TODO adjust encoding level for size */
-	lzma_easy_buffer_encode(6, LZMA_CHECK_CRC64, NULL,
+	switch (err = lzma_easy_buffer_encode(6, LZMA_CHECK_CRC64, NULL,
 			buf, bufsize,
 			outbuf, &outlen, outsize
-			);
+			)) {
+		case LZMA_OK: break;
+		case LZMA_OPTIONS_ERROR: fprintf(stderr, "lzma options error\n");
+		default: fprintf(stderr, "lzma error %d\n", err);
+		return NULL;
+			 break;
+	}
 	*len = outlen;
 	return outbuf;
 }
 
+#if 0
 static int callback(void *NotUsed, int argc, char **argv, char **azColName){
 	int i;
 	for(i=0; i<argc; i++){
@@ -44,6 +53,7 @@ static int callback(void *NotUsed, int argc, char **argv, char **azColName){
 }
 
 static char *create_table = "create table if not exists files (hash text primary key, size integer, compression text, content blob)";
+#endif
 
 struct dbh {
 	sqlite3 *db;
diff --git a/lib/db.c b/lib/db.c
index e09732e..e275d92 100644
--- a/lib/db.c
+++ b/lib/db.c
@@ -24,7 +24,9 @@ static int callback(void *NotUsed, int argc, char **argv, char **azColName){
 	return 0;
 }
 
+#if 0
 static char *create_table = "create table if not exists files (hash text primary key, size integer, compression text, content blob)";
+#endif
 
 struct dbh {
 	sqlite3 *db;
-- 
2.40.0