Add the undocumented test/debug function parseuri(), useful for fuzzing.

Only appears when compiling with SQLITE_DEBUG.

FossilOrigin-Name: 011fab70cb3d194b27742ebb236b05be582230567cf78e3e6cac6911de86922f

manifest

@@ -1,5 +1,5 @@
-C Fix\shandling\sof\sU+fffd\sin\sthe\sLIKE\soptimization.\ndbsqlfuzz\seee57fb9eea1dfa5aa40dfa87865cf8c84d12f96.
-D 2024-10-07T12:19:23.717
+C Add\sthe\sundocumented\stest/debug\sfunction\sparseuri(),\suseful\sfor\sfuzzing.\nOnly\sappears\swhen\scompiling\swith\sSQLITE_DEBUG.
+D 2024-10-07T12:48:21.105
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -722,7 +722,7 @@ F src/delete.c 03a77ba20e54f0f42ebd8eddf15411ed6bdb06a2c472ac4b6b336521bf7cea42
 F src/expr.c 6d5f2c38fe3ec06a7eac599dac822788b36064124e20112a844e9cd5156cb239
 F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
 F src/fkey.c 928ed2517e8732113d2b9821aa37af639688d752f4ea9ac6e0e393d713eeb76f
-F src/func.c df400a1d3f4625997d4dd8a81951c303e066277c29b861d37e03cd152d7858dd
+F src/func.c ed6baeeb414ef18ce729793587dae8bd30f11e6aacec8675bd33727e0bcb3765
 F src/global.c a19e4b1ca1335f560e9560e590fc13081e21f670643367f99cb9e8f9dc7d615b
 F src/hash.c 9ee4269fb1d6632a6fecfb9479c93a1f29271bddbbaf215dd60420bcb80c7220
 F src/hash.h 3340ab6e1d13e725571d7cee6d3e3135f0779a7d8e76a9ce0a85971fa3953c51
@@ -2176,7 +2176,7 @@ F tool/speedtest8inst1.c 7ce07da76b5e745783e703a834417d725b7d45fd
 F tool/spellsift.tcl 52b4b04dc4333c7ab024f09d9d66ed6b6f7c6eb00b38497a09f338fa55d40618 x
 F tool/split-sqlite3c.tcl 5aa60643afca558bc732b1444ae81a522326f91e1dc5665b369c54f09e20de60
 F tool/sqldiff.c 2a0987d183027c795ced13d6749061c1d2f38e24eddb428f56fa64c3a8f51e4b
-F tool/sqlite3-rsync.c 2f06f02ee3a28f847b3fb8c0f32e3b3296571e0f8027939b95d32df5edfe1dd9
+F tool/sqlite3-rsync.c 7c78ba15afa0b929604adb91c94af8dbdf8cbe87be8a5cba5353af0e320ca65a
 F tool/sqlite3_analyzer.c.in 348ba349bbdc93c9866439f9f935d7284866a2a4e6898bc906ae1204ade56918
 F tool/sqltclsh.c.in 1bcc2e9da58fadf17b0bf6a50e68c1159e602ce057210b655d50bad5aaaef898
 F tool/sqltclsh.tcl 862f4cf1418df5e1315b5db3b5ebe88969e2a784525af5fbf9596592f14ed848
@@ -2215,9 +2215,9 @@ F vsixtest/vsixtest.tcl 6195aba1f12a5e10efc2b8c0009532167be5e301abe5b31385638080
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P d218993be5886f07193d5c2a66ccd0ecdd7bb87687947b89945c90e31cea5451
-Q +13addee687c3fef02c6ef1af9f446822fe0945815648fb2198933c7c644798b2
-R 85a4f3886dc5b88ca917188b27f8b4cb
+P bce52ce2a6e7f3d3d1b2807d1ea95243d9b655e557c1bb6f0b8a9a6cefb1aed6 aa9bd711cc1b0136098388976d22adc0a2fc89f50fe2273ed80ee3e4e50c98b6
+R 2751128e1e0fdc619c86fd365893c4ad
+T +closed aa9bd711cc1b0136098388976d22adc0a2fc89f50fe2273ed80ee3e4e50c98b6
 U drh
-Z d22e20bac83a8cacb503bd8770c0d69a
+Z 13ff87e9c834e664927aecce64813015
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-bce52ce2a6e7f3d3d1b2807d1ea95243d9b655e557c1bb6f0b8a9a6cefb1aed6
+011fab70cb3d194b27742ebb236b05be582230567cf78e3e6cac6911de86922f

src/func.c

@@ -2535,7 +2535,13 @@ static void signFunc(
 ** Implementation of fpdecode(x,y,z) function.
 **
 ** x is a real number that is to be decoded.  y is the precision.
-** z is the maximum real precision.
+** z is the maximum real precision.  Return a string that shows the
+** results of the sqlite3FpDecode() function.
+**
+** Used for testing and debugging only, specifically testing and debugging
+** of the sqlite3FpDecode() function.  This SQL function does not appear
+** in production builds.  This function is not an API and is subject to
+** modification or removal in future versions of SQLite.
 */
 static void fpdecodeFunc(
   sqlite3_context *context,
@@ -2562,6 +2568,82 @@ static void fpdecodeFunc(
 }
 #endif /* SQLITE_DEBUG */
 
+#ifdef SQLITE_DEBUG
+/*
+** Implementation of parseuri(uri,flags) function.
+**
+** Required Arguments:
+**    "uri"        The URI to parse.
+**    "flags"      Bitmask of flags, as if to sqlite3_open_v2().
+**
+** Additional arguments beyond the first two make calls to
+** sqlite3_uri_key() for integers and sqlite3_uri_parameter for
+** anything else.
+**
+** The result is a string showing the results of calling sqlite3ParseUri().
+**
+** Used for testing and debugging only, specifically testing and debugging
+** of the sqlite3ParseUri() function.  This SQL function does not appear
+** in production builds.  This function is not an API and is subject to
+** modification or removal in future versions of SQLite.
+*/
+static void parseuriFunc(
+  sqlite3_context *ctx,
+  int argc,
+  sqlite3_value **argv
+){
+  sqlite3_str *pResult;
+  const char *zVfs;
+  const char *zUri;
+  unsigned int flgs;
+  int rc;
+  sqlite3_vfs *pVfs = 0;
+  char *zFile = 0;
+  char *zErr = 0;
+
+  if( argc<2 ) return;
+  pVfs = sqlite3_vfs_find(0);
+  assert( pVfs );
+  zVfs = pVfs->zName;
+  zUri = (const char*)sqlite3_value_text(argv[0]);
+  if( zUri==0 ) return;
+  flgs = (unsigned int)sqlite3_value_int(argv[1]);
+  rc = sqlite3ParseUri(zVfs, zUri, &flgs, &pVfs, &zFile, &zErr);
+  pResult = sqlite3_str_new(0);
+  if( pResult ){
+    int i;
+    sqlite3_str_appendf(pResult, "rc=%d", rc);
+    sqlite3_str_appendf(pResult, ", flags=0x%x", flgs);
+    sqlite3_str_appendf(pResult, ", vfs=%Q", pVfs ? pVfs->zName: 0);
+    sqlite3_str_appendf(pResult, ", err=%Q", zErr);
+    sqlite3_str_appendf(pResult, ", file=%Q", zFile);
+    if( zFile ){
+      const char *z = zFile;
+      z += sqlite3Strlen30(z)+1;
+      while( z[0] ){
+        sqlite3_str_appendf(pResult, ", %Q", z);
+        z += sqlite3Strlen30(z)+1;
+      }
+      for(i=2; i<argc; i++){
+        const char *zArg;
+        if( sqlite3_value_type(argv[i])==SQLITE_INTEGER ){
+          int k = sqlite3_value_int(argv[i]);
+          sqlite3_str_appendf(pResult, ", '%d:%q'",k,sqlite3_uri_key(zFile, k));
+        }else if( (zArg = (const char*)sqlite3_value_text(argv[i]))!=0 ){
+          sqlite3_str_appendf(pResult, ", '%q:%q'",
+                 zArg, sqlite3_uri_parameter(zFile,zArg));
+        }else{
+          sqlite3_str_appendf(pResult, ", NULL");
+        }
+      }
+    }
+    sqlite3_result_text(ctx, sqlite3_str_finish(pResult), -1, sqlite3_free);
+  }
+  sqlite3_free_filename(zFile);
+  sqlite3_free(zErr);
+}
+#endif /* SQLITE_DEBUG */
+
 /*
 ** All of the FuncDef structures in the aBuiltinFunc[] array above
 ** to the global function hash table.  This occurs at start-time (as
@@ -2635,6 +2717,7 @@ void sqlite3RegisterBuiltinFunctions(void){
     FUNCTION(abs,                1, 0, 0, absFunc          ),
 #ifdef SQLITE_DEBUG
     FUNCTION(fpdecode,           3, 0, 0, fpdecodeFunc     ),
+    FUNCTION(parseuri,          -1, 0, 0, parseuriFunc     ),
 #endif
 #ifndef SQLITE_OMIT_FLOATING_POINT
     FUNCTION(round,              1, 0, 0, roundFunc        ),

tool/sqlite3-rsync.c

@@ -1197,6 +1197,7 @@ static void originSide(SQLiteRsync *p){
   int c = 0;
   unsigned int nPage = 0;
   unsigned int iPage = 0;
+  unsigned int lockBytePage = 0;
   unsigned int szPg = 0;
   sqlite3_stmt *pCkHash = 0;
   char buf[200];
@@ -1235,6 +1236,7 @@ static void originSide(SQLiteRsync *p){
       p->nPage = nPage;
       p->szPage = szPg;
       p->iProtocol = PROTOCOL_VERSION;
+      lockBytePage = (1<<30)/szPg + 1;
     }
   }
   
@@ -1290,6 +1292,7 @@ static void originSide(SQLiteRsync *p){
                     " INSERT INTO badHash SELECT n FROM c",
                     iPage+1, p->nPage);
         }
+        runSql(p, "DELETE FROM badHash WHERE pgno=%d", lockBytePage);
         pStmt = prepareStmt(p,
                "SELECT pgno, data"
                "  FROM badHash JOIN sqlite_dbpage('main') USING(pgno)");