4690   int nPathname = 0;       /* Number of bytes in zPathname */  in sqlite3PagerOpen()  local
4711       nPathname = sqlite3Strlen30(zPathname);  in sqlite3PagerOpen()
4723     nPathname = pVfs->mxPathname+1;  in sqlite3PagerOpen()
4724     zPathname = sqlite3DbMallocRaw(0, nPathname*2);  in sqlite3PagerOpen()
4729     rc = sqlite3OsFullPathname(pVfs, zFilename, nPathname, zPathname);  in sqlite3PagerOpen()
4739     nPathname = sqlite3Strlen30(zPathname);  in sqlite3PagerOpen()
4748     if( rc==SQLITE_OK && nPathname+8>pVfs->mxPathname ){  in sqlite3PagerOpen()
4814     nPathname + 1 +                      /* database filename */  in sqlite3PagerOpen()
4816     nPathname + 8 + 1 +                  /* Journal filename */  in sqlite3PagerOpen()
4818     nPathname + 4 + 1 +                  /* WAL filename */  in sqlite3PagerOpen()
4838   if( nPathname>0 ){  in sqlite3PagerOpen()
4839     memcpy(pPtr, zPathname, nPathname);   pPtr += nPathname + 1;  in sqlite3PagerOpen()
4849   if( nPathname>0 ){  in sqlite3PagerOpen()
4851     memcpy(pPtr, zPathname, nPathname);   pPtr += nPathname;  in sqlite3PagerOpen()
4863   if( nPathname>0 ){  in sqlite3PagerOpen()
4865     memcpy(pPtr, zPathname, nPathname);   pPtr += nPathname;  in sqlite3PagerOpen()
4877   if( nPathname ) sqlite3DbFree(0, zPathname);  in sqlite3PagerOpen()