Test the libaries response to read-only or unreadable database, WAL and wal-index files. If a WAL file cannot be opened in read/write mode, return SQLITE_CANTOPEN to the caller.

FossilOrigin-Name: 45bb84c6283d803fc29077fdc2d06fa50ec06a59

1 files changed, 3 insertions, 0 deletions

diff --git a/src/wal.c b/src/wal.c
index d9563e619..769db036d 100644
--- a/src/wal.c
+++ b/src/wal.c
@@ -1226,6 +1226,9 @@ int sqlite3WalOpen(
   /* Open file handle on the write-ahead log file. */
   flags = (SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|SQLITE_OPEN_WAL);
   rc = sqlite3OsOpen(pVfs, zWalName, pRet->pWalFd, flags, &flags);
+  if( rc==SQLITE_OK && flags&SQLITE_OPEN_READONLY ){
+    rc = SQLITE_CANTOPEN;
+  }
 
   if( rc!=SQLITE_OK ){
     walIndexClose(pRet, 0);