commit 1eac966076301c782811314677edaaa173f7bf83
author drh <drh@noemail.net> Sat Feb 01 13:30:39 2020 +0000
committer drh <drh@noemail.net> Sat Feb 01 13:30:39 2020 +0000
tree 52bace0620ab959e363512bf3ce5398e7e3f86d9
parent 562fd18b9dc27216191c0a6477bba9b175f7f0d2

Fix a problem in sqlite3CodecQueryParameters() that was introduced by the
query parameter encoding changes for the 3.31.1 release.

FossilOrigin-Name: cc65ca541265bd7061ed8f5ec9a54f3c384c41019c5ea1c68dcaabeff3495839

src/main.c

diff --git a/src/main.c b/src/main.c
index 3983f08..528e9a7 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2989,6 +2989,21 @@
   return rc;
 }
 
+/*
+** This routine does the core work of extracting URI parameters from a
+** database filename for the sqlite3_uri_parameter() interface.
+*/
+static const char *uriParameter(const char *zFilename, const char *zParam){
+  zFilename += sqlite3Strlen30(zFilename) + 1;
+  while( zFilename[0] ){
+    int x = strcmp(zFilename, zParam);
+    zFilename += sqlite3Strlen30(zFilename) + 1;
+    if( x==0 ) return zFilename;
+    zFilename += sqlite3Strlen30(zFilename) + 1;
+  }
+  return 0;
+}
+
 #if defined(SQLITE_HAS_CODEC)
 /*
 ** Process URI filename query parameters relevant to the SQLite Encryption
@@ -3001,7 +3016,9 @@
   const char *zUri       /* URI filename */
 ){
   const char *zKey;
-  if( (zKey = sqlite3_uri_parameter(zUri, "hexkey"))!=0 && zKey[0] ){
+  if( zUri==0 ){
+    return 0;
+  }else if( (zKey = uriParameter(zUri, "hexkey"))!=0 && zKey[0] ){
     u8 iByte;
     int i;
     char zDecoded[40];
@@ -3011,10 +3028,10 @@
     }
     sqlite3_key_v2(db, zDb, zDecoded, i/2);
     return 1;
-  }else if( (zKey = sqlite3_uri_parameter(zUri, "key"))!=0 ){
+  }else if( (zKey = uriParameter(zUri, "key"))!=0 ){
     sqlite3_key_v2(db, zDb, zKey, sqlite3Strlen30(zKey));
     return 1;
-  }else if( (zKey = sqlite3_uri_parameter(zUri, "textkey"))!=0 ){
+  }else if( (zKey = uriParameter(zUri, "textkey"))!=0 ){
     sqlite3_key_v2(db, zDb, zKey, -1);
     return 1;
   }else{
@@ -4272,14 +4289,7 @@
 const char *sqlite3_uri_parameter(const char *zFilename, const char *zParam){
   if( zFilename==0 || zParam==0 ) return 0;
   zFilename = databaseName(zFilename);
-  zFilename += sqlite3Strlen30(zFilename) + 1;
-  while( zFilename[0] ){
-    int x = strcmp(zFilename, zParam);
-    zFilename += sqlite3Strlen30(zFilename) + 1;
-    if( x==0 ) return zFilename;
-    zFilename += sqlite3Strlen30(zFilename) + 1;
-  }
-  return 0;
+  return uriParameter(zFilename, zParam);
 }
 
 /*