Convert Rizin commands to the API calls (#2948)

Including wx wr wd ws ww wz ahi ahb aec aecu aecc aecs aes aesb aets+
aets- afc afcl omfg+w oo+ oo p8 aei aeim aeip aecb aeso dbs avj

src/core/Cutter.cpp

@@ -656,7 +656,10 @@ bool CutterCore::loadFile(QString path, ut64 baddr, ut64 mapaddr, int perms, int
     }
 
     if (perms & RZ_PERM_W) {
-        rz_core_cmd0(core, "omfg+w");
+        RzPVector *maps = rz_io_maps(core->io);
+        for (auto map : CutterPVector<RzIOMap>(maps)) {
+            map->perm |= RZ_PERM_W;
+        }
     }
 
     fflush(stdout);
@@ -802,7 +805,8 @@ void CutterCore::jmpReverse(RVA addr)
 
 void CutterCore::editBytes(RVA addr, const QString &bytes)
 {
-    cmdRawAt(QString("wx %1").arg(bytes), addr);
+    CORE_LOCK();
+    rz_core_write_hexpair(core, addr, bytes.toUtf8().constData());
     emit instructionChanged(addr);
 }
 
@@ -935,8 +939,9 @@ void CutterCore::setImmediateBase(const QString &rzBaseName, RVA offset)
     if (offset == RVA_INVALID) {
         offset = getOffset();
     }
-
+    CORE_LOCK();
-    this->cmdRawAt(QString("ahi %1").arg(rzBaseName), offset);
+    int base = (int)rz_num_base_of_string(core->num, rzBaseName.toUtf8().constData());
+    rz_analysis_hint_set_immbase(core->analysis, offset, base);
     emit instructionChanged(offset);
 }
 
@@ -946,7 +951,8 @@ void CutterCore::setCurrentBits(int bits, RVA offset)
         offset = getOffset();
     }
 
-    this->cmdRawAt(QString("ahb %1").arg(bits), offset);
+    CORE_LOCK();
+    rz_analysis_hint_set_bits(core->analysis, offset, bits);
     emit instructionChanged(offset);
 }
 
@@ -1950,7 +1956,7 @@ void CutterCore::startDebug()
     if (!asyncTask(
                 [](RzCore *core) {
                     rz_core_file_reopen_debug(core, "");
-                    return (void *)nullptr;
+                    return nullptr;
                 },
                 debugTask)) {
         return;
@@ -1991,14 +1997,19 @@ void CutterCore::startEmulation()
     }
 
     // clear registers, init esil state, stack, progcounter at current seek
-    asyncCmd("aei; aeim; aeip", debugTask);
+    asyncTask(
+            [&](RzCore *core) {
+                rz_core_analysis_esil_reinit(core);
+                rz_core_analysis_esil_init_mem(core, NULL, UT64_MAX, UT32_MAX);
+                rz_core_analysis_esil_init_regs(core);
+                return nullptr;
+            },
+            debugTask);
 
     emit debugTaskStateChanged();
 
     connect(debugTask.data(), &RizinTask::finished, this, [this]() {
-        if (debugTaskDialog) {
         delete debugTaskDialog;
-        }
         debugTask.clear();
 
         if (!currentlyDebugging || !currentlyEmulating) {
@@ -2105,9 +2116,7 @@ void CutterCore::attachDebug(int pid)
     emit debugTaskStateChanged();
 
     connect(debugTask.data(), &RizinTask::finished, this, [this, pid]() {
-        if (debugTaskDialog) {
         delete debugTaskDialog;
-        }
         debugTask.clear();
 
         syncAndSeekProgramCounter();
@@ -2184,14 +2193,20 @@ void CutterCore::continueDebug()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aec", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_esil_step(core, UT64_MAX, "0", NULL, false);
+                        rz_core_reg_update_flags(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
         if (!asyncTask(
                     [](RzCore *core) {
                         rz_debug_continue(core->dbg);
-                        return (void *)NULL;
+                        return nullptr;
                     },
                     debugTask)) {
             return;
@@ -2216,14 +2231,20 @@ void CutterCore::continueBackDebug()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aecb", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_esil_continue_back(core);
+                        rz_core_reg_update_flags(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
         if (!asyncTask(
                     [](RzCore *core) {
                         rz_debug_continue_back(core->dbg);
-                        return (void *)NULL;
+                        return nullptr;
                     },
                     debugTask)) {
             return;
@@ -2248,14 +2269,20 @@ void CutterCore::continueUntilDebug(ut64 offset)
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aecu " + QString::number(offset), debugTask)) {
+        if (!asyncTask(
+                    [=](RzCore *core) {
+                        rz_core_esil_step(core, offset, NULL, NULL, false);
+                        rz_core_reg_update_flags(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
         if (!asyncTask(
                     [=](RzCore *core) {
                         rz_core_debug_continue_until(core, offset, offset);
-                        return (void *)NULL;
+                        return nullptr;
                     },
                     debugTask)) {
             return;
@@ -2278,14 +2305,19 @@ void CutterCore::continueUntilCall()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aecc", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_analysis_continue_until_call(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
         if (!asyncTask(
                     [](RzCore *core) {
                         rz_core_debug_step_one(core, 0);
-                        return (void *)NULL;
+                        return nullptr;
                     },
                     debugTask)) {
             return;
@@ -2310,7 +2342,12 @@ void CutterCore::continueUntilSyscall()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aecs", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_analysis_continue_until_syscall(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
@@ -2346,14 +2383,20 @@ void CutterCore::stepDebug()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aes", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_esil_step(core, UT64_MAX, NULL, NULL, false);
+                        rz_core_reg_update_flags(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
         if (!asyncTask(
                     [](RzCore *core) {
                         rz_core_debug_step_one(core, 1);
-                        return (void *)NULL;
+                        return nullptr;
                     },
                     debugTask)) {
             return;
@@ -2378,7 +2421,12 @@ void CutterCore::stepOverDebug()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aeso", debugTask)) {
+        if (!asyncTask(
+                    [&](RzCore *core) {
+                        rz_core_analysis_esil_step_over(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
@@ -2442,7 +2490,13 @@ void CutterCore::stepBackDebug()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aesb", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_esil_step_back(core);
+                        rz_core_reg_update_flags(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
@@ -2499,7 +2553,12 @@ void CutterCore::startTraceSession()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aets+", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_analysis_esil_trace_start(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
@@ -2507,7 +2566,7 @@ void CutterCore::startTraceSession()
                     [](RzCore *core) {
                         core->dbg->session = rz_debug_session_new();
                         rz_debug_add_checkpoint(core->dbg);
-                        return (void *)NULL;
+                        return nullptr;
                     },
                     debugTask)) {
             return;
@@ -2516,9 +2575,7 @@ void CutterCore::startTraceSession()
     emit debugTaskStateChanged();
 
     connect(debugTask.data(), &RizinTask::finished, this, [this]() {
-        if (debugTaskDialog) {
         delete debugTaskDialog;
-        }
         debugTask.clear();
 
         currentlyTracing = true;
@@ -2541,7 +2598,12 @@ void CutterCore::stopTraceSession()
     }
 
     if (currentlyEmulating) {
-        if (!asyncCmdEsil("aets-", debugTask)) {
+        if (!asyncTask(
+                    [](RzCore *core) {
+                        rz_core_analysis_esil_trace_stop(core);
+                        return nullptr;
+                    },
+                    debugTask)) {
             return;
         }
     } else {
@@ -2549,7 +2611,7 @@ void CutterCore::stopTraceSession()
                     [](RzCore *core) {
                         rz_debug_session_free(core->dbg->session);
                         core->dbg->session = NULL;
-                        return (void *)NULL;
+                        return nullptr;
                     },
                     debugTask)) {
             return;
@@ -2558,9 +2620,7 @@ void CutterCore::stopTraceSession()
     emit debugTaskStateChanged();
 
     connect(debugTask.data(), &RizinTask::finished, this, [this]() {
-        if (debugTaskDialog) {
         delete debugTaskDialog;
-        }
         debugTask.clear();
 
         currentlyTracing = false;
@@ -2578,7 +2638,8 @@ void CutterCore::stopTraceSession()
 
 void CutterCore::toggleBreakpoint(RVA addr)
 {
-    cmdRaw(QString("dbs %1").arg(addr));
+    CORE_LOCK();
+    rz_core_debug_breakpoint_toggle(core, addr);
     emit breakpointsChanged(addr);
 }
 
@@ -3649,25 +3710,29 @@ QList<ResourcesDescription> CutterCore::getAllResources()
 QList<VTableDescription> CutterCore::getAllVTables()
 {
     CORE_LOCK();
-    QList<VTableDescription> vtables;
+    QList<VTableDescription> vtableDescs;
-
+    RVTableContext context;
-    for (CutterJson vTableObject : cmdj("avj")) {
+    rz_analysis_vtable_begin(core->analysis, &context);
-        VTableDescription res;
+    RzList *vtables = rz_analysis_vtable_search(&context);
-
+    RzListIter *iter;
-        res.addr = vTableObject[RJsonKey::offset].toRVA();
+    RVTableInfo *table;
-
+    RVTableMethodInfo *method;
-        for (CutterJson methodObject : vTableObject[RJsonKey::methods]) {
+    CutterRzListForeach (vtables, iter, RVTableInfo, table) {
-            BinClassMethodDescription method;
+        VTableDescription tableDesc;
-
+        tableDesc.addr = table->saddr;
-            method.addr = methodObject[RJsonKey::offset].toRVA();
+        CutterRzVectorForeach(&table->methods, method, RVTableMethodInfo)
-            method.name = methodObject[RJsonKey::name].toString();
+        {
-
+            BinClassMethodDescription methodDesc;
-            res.methods << method;
+            RzAnalysisFunction *fcn = rz_analysis_get_fcn_in(core->analysis, method->addr, 0);
+            const char *fname = fcn ? fcn->name : nullptr;
+            methodDesc.addr = method->addr;
+            methodDesc.name = fname ? fname : "No Name found";
+            tableDesc.methods << methodDesc;
         }
-
+        vtableDescs << tableDesc;
-        vtables << res;
     }
-    return vtables;
+    rz_list_free(vtables);
+    return vtableDescs;
 }
 
 QList<TypeDescription> CutterCore::getAllTypes()
@@ -4226,10 +4291,10 @@ void CutterCore::commitWriteCache()
     TempConfig tempConfig;
     tempConfig.set("io.cache", false);
     if (!isWriteModeEnabled()) {
-        cmdRaw("oo+");
+        rz_core_io_file_reopen(core, core->io->desc->fd, RZ_PERM_RW);
         rz_io_cache_commit(core->io, 0, UT64_MAX);
         rz_core_block_read(core);
-        cmdRaw("oo");
+        rz_core_io_file_open(core, core->io->desc->fd);
     } else {
         rz_io_cache_commit(core->io, 0, UT64_MAX);
         rz_core_block_read(core);
@@ -4252,17 +4317,22 @@ void CutterCore::setWriteMode(bool enabled)
         return;
     }
 
+    CORE_LOCK();
     // Change from read-only to write-mode
-    if (enabled && !writeModeState) {
+    if (enabled) {
-        cmdRaw("oo+");
+        if (!writeModeState) {
-        // Change from write-mode to read-only
+            rz_core_io_file_reopen(core, core->io->desc->fd, RZ_PERM_RW);
+        }
     } else {
-        cmdRaw("oo");
+        // Change from write-mode to read-only
+        rz_core_io_file_open(core, core->io->desc->fd);
     }
     // Disable cache mode because we specifically set write or
     // read-only modes.
+    if (this->iocache) {
         setIOCache(false);
-    writeModeChanged(enabled);
+    }
+    emit writeModeChanged(enabled);
     emit ioModeChanged();
 }
 

src/dialogs/WriteCommandsDialogs.cpp

@@ -77,14 +77,12 @@ size_t DuplicateFromOffsetDialog::getNBytes() const
 
 void DuplicateFromOffsetDialog::refresh()
 {
-    RVA offestFrom = getOffset();
-
     QSignalBlocker sb(Core());
+    RzCoreLocked core(Core());
+    auto buf = Core()->ioRead(getOffset(), (int)getNBytes());
 
     // Add space every two characters for word wrap in hex sequence
     QRegularExpression re { "(.{2})" };
-    QString bytes = Core()->cmdRawAt(QString("p8 %1").arg(QString::number(getNBytes())), offestFrom)
+    auto bytes = QString(buf).replace(re, "\\1 ").trimmed();
-                            .replace(re, "\\1 ");
+    ui->bytesLabel->setText(bytes);
-
-    ui->bytesLabel->setText(bytes.trimmed());
 }

src/menus/DisassemblyContextMenu.cpp

@@ -1014,8 +1014,18 @@ void DisassemblyContextMenu::on_actionEditFunction_triggered()
 
         dialog.setStackSizeText(QString::number(fcn->stack));
 
-        QStringList callConList = Core()->cmdRaw("afcl").split("\n");
+        QStringList callConList;
-        callConList.removeLast();
+        RzList *list = rz_analysis_calling_conventions(core->analysis);
+        if (!list) {
+            return;
+        }
+        RzListIter *iter;
+        const char *cc;
+        CutterRzListForeach (list, iter, const char, cc) {
+            callConList << cc;
+        }
+        rz_list_free(list);
+
         dialog.setCallConList(callConList);
         dialog.setCallConSelected(fcn->cc);
 
@@ -1026,7 +1036,15 @@ void DisassemblyContextMenu::on_actionEditFunction_triggered()
             fcn->addr = Core()->math(new_start_addr);
             QString new_stack_size = dialog.getStackSizeText();
             fcn->stack = int(Core()->math(new_stack_size));
-            Core()->cmdRaw("afc " + dialog.getCallConSelected());
+
+            const char *ccSelected = dialog.getCallConSelected().toUtf8().constData();
+            if (RZ_STR_ISEMPTY(ccSelected)) {
+                return;
+            }
+            if (rz_analysis_cc_exist(core->analysis, ccSelected)) {
+                fcn->cc = rz_str_constpool_get(&core->analysis->constpool, ccSelected);
+            }
+
             emit Core()->functionsChanged();
         }
     }

src/widgets/HexWidget.cpp

@@ -131,7 +131,8 @@ HexWidget::HexWidget(QWidget *parent)
     // delete comment option
     actionDeleteComment = new QAction(tr("Delete Comment"), this);
     actionDeleteComment->setShortcutContext(Qt::ShortcutContext::WidgetWithChildrenShortcut);
-    connect(actionDeleteComment, &QAction::triggered, this, &HexWidget::on_actionDeleteComment_triggered);
+    connect(actionDeleteComment, &QAction::triggered, this,
+            &HexWidget::on_actionDeleteComment_triggered);
     addAction(actionDeleteComment);
 
     actionSelectRange = new QAction(tr("Select range"), this);
@@ -742,14 +743,16 @@ void HexWidget::w_writeString()
         return;
     }
     bool ok = false;
-    QInputDialog d;
+    QString str = QInputDialog::getText(this, tr("Write string"), tr("String:"), QLineEdit::Normal,
-    d.setInputMode(QInputDialog::InputMode::TextInput);
+                                        "", &ok);
-    QString str = d.getText(this, tr("Write string"), tr("String:"), QLineEdit::Normal, "", &ok);
+    if (!ok || str.isEmpty()) {
-    if (ok && !str.isEmpty()) {
+        return;
+    }
+    {
         RzCoreLocked core(Core());
         rz_core_write_string_at(core, getLocationAddress(), str.toUtf8().constData());
-        refresh();
     }
+    refresh();
 }
 
 void HexWidget::w_increaseDecrease()
@@ -767,8 +770,10 @@ void HexWidget::w_increaseDecrease()
     if (d.getMode() == IncrementDecrementDialog::Decrease) {
         value *= -1;
     }
+    {
         RzCoreLocked core(Core());
         rz_core_write_value_inc_at(core, getLocationAddress(), value, sz);
+    }
     refresh();
 }
 
@@ -784,9 +789,7 @@ void HexWidget::w_writeBytes()
         size = static_cast<int>(selection.size());
     }
 
-    QInputDialog d;
+    QByteArray bytes = QInputDialog::getText(this, tr("Write hex bytes"), tr("Hex byte string:"),
-    d.setInputMode(QInputDialog::InputMode::TextInput);
-    QByteArray bytes = d.getText(this, tr("Write hex bytes"), tr("Hex byte string:"),
                                              QLineEdit::Normal, "", &ok)
                                .toUtf8();
     const int offset = bytes.startsWith("\\x") ? 2 : 0;
@@ -795,7 +798,8 @@ void HexWidget::w_writeBytes()
     if (!ok || !bytes_size) {
         return;
     }
-    uint8_t *buf = (uint8_t *)malloc(static_cast<size_t>(bytes_size));
+    {
+        auto *buf = (uint8_t *)malloc(static_cast<size_t>(bytes_size));
         if (!buf) {
             return;
         }
@@ -805,6 +809,7 @@ void HexWidget::w_writeBytes()
         RzCoreLocked core(Core());
         rz_core_write_at(core, getLocationAddress(), buf, bytes_size);
         free(buf);
+    }
     refresh();
 }
 
@@ -813,24 +818,25 @@ void HexWidget::w_writeZeros()
     if (!ioModesController.prepareForWriting()) {
         return;
     }
-    bool ok = false;
-    QInputDialog d;
 
     int size = 1;
     if (!selection.isEmpty() && selection.size() <= INT_MAX) {
         size = static_cast<int>(selection.size());
     }
 
-    int len =
+    bool ok = false;
-            d.getInt(this, tr("Write zeros"), tr("Number of zeros:"), size, 1, 0x7FFFFFFF, 1, &ok);
+    int len = QInputDialog::getInt(this, tr("Write zeros"), tr("Number of zeros:"), size, 1,
-    if (ok) {
+                                   0x7FFFFFFF, 1, &ok);
+    if (!ok) {
+        return;
+    }
+    {
         RzCoreLocked core(Core());
-        uint8_t *buf = (uint8_t *)calloc(len, sizeof(uint8_t));
+        auto *buf = (uint8_t *)calloc(len, sizeof(uint8_t));
         rz_core_write_at(core, getLocationAddress(), buf, len);
         free(buf);
-
-        refresh();
     }
+    refresh();
 }
 
 void HexWidget::w_write64()
@@ -855,12 +861,14 @@ void HexWidget::w_write64()
         return;
     }
 
+    {
         RzCoreLocked core(Core());
         if (d.getMode() == Base64EnDecodedWriteDialog::Encode) {
             rz_core_write_base64_at(core, getLocationAddress(), str.toHex().constData());
         } else {
             rz_core_write_base64d_at(core, getLocationAddress(), str.constData());
         }
+    }
     refresh();
 }
 
@@ -869,19 +877,24 @@ void HexWidget::w_writeRandom()
     if (!ioModesController.prepareForWriting()) {
         return;
     }
-    bool ok = false;
-    QInputDialog d;
 
     int size = 1;
     if (!selection.isEmpty() && selection.size() <= INT_MAX) {
         size = static_cast<int>(selection.size());
     }
-    QString nbytes = QString::number(d.getInt(this, tr("Write random"), tr("Number of bytes:"),
+
-                                              size, 1, 0x7FFFFFFF, 1, &ok));
+    bool ok = false;
-    if (ok && !nbytes.isEmpty()) {
+    int nbytes = QInputDialog::getInt(this, tr("Write random"), tr("Number of bytes:"), size, 1,
-        Core()->cmdRawAt(QString("wr %1").arg(nbytes), getLocationAddress());
+                                      0x7FFFFFFF, 1, &ok);
-        refresh();
+    if (!ok) {
+        return;
     }
+
+    {
+        RzCoreLocked core(Core());
+        rz_core_write_random_at(core, getLocationAddress(), nbytes);
+    }
+    refresh();
 }
 
 void HexWidget::w_duplFromOffset()
@@ -894,9 +907,12 @@ void HexWidget::w_duplFromOffset()
     if (ret == QDialog::Rejected) {
         return;
     }
-    RVA copyFrom = d.getOffset();
+    RVA src = d.getOffset();
-    QString nBytes = QString::number(d.getNBytes());
+    int len = (int)d.getNBytes();
-    Core()->cmdRawAt(QString("wd %1 %2").arg(copyFrom).arg(nBytes), getLocationAddress());
+    {
+        RzCoreLocked core(Core());
+        rz_core_write_duplicate_at(core, getLocationAddress(), src, len);
+    }
     refresh();
 }
 
@@ -906,14 +922,16 @@ void HexWidget::w_writePascalString()
         return;
     }
     bool ok = false;
-    QInputDialog d;
+    QString str = QInputDialog::getText(this, tr("Write Pascal string"), tr("String:"),
-    d.setInputMode(QInputDialog::InputMode::TextInput);
+                                        QLineEdit::Normal, "", &ok);
-    QString str =
+    if (!ok || str.isEmpty()) {
-            d.getText(this, tr("Write Pascal string"), tr("String:"), QLineEdit::Normal, "", &ok);
+        return;
-    if (ok && !str.isEmpty()) {
-        Core()->cmdRawAt(QString("ws %1").arg(str), getLocationAddress());
-        refresh();
     }
+    {
+        RzCoreLocked core(Core());
+        rz_core_write_length_string_at(core, getLocationAddress(), str.toUtf8().constData());
+    }
+    refresh();
 }
 
 void HexWidget::w_writeWideString()
@@ -922,14 +940,16 @@ void HexWidget::w_writeWideString()
         return;
     }
     bool ok = false;
-    QInputDialog d;
+    QString str = QInputDialog::getText(this, tr("Write wide string"), tr("String:"),
-    d.setInputMode(QInputDialog::InputMode::TextInput);
+                                        QLineEdit::Normal, "", &ok);
-    QString str =
+    if (!ok || str.isEmpty()) {
-            d.getText(this, tr("Write wide string"), tr("String:"), QLineEdit::Normal, "", &ok);
+        return;
-    if (ok && !str.isEmpty()) {
-        Core()->cmdRawAt(QString("ww %1").arg(str), getLocationAddress());
-        refresh();
     }
+    {
+        RzCoreLocked core(Core());
+        rz_core_write_string_wide_at(core, getLocationAddress(), str.toUtf8().constData());
+    }
+    refresh();
 }
 
 void HexWidget::w_writeCString()
@@ -938,14 +958,16 @@ void HexWidget::w_writeCString()
         return;
     }
     bool ok = false;
-    QInputDialog d;
+    QString str = QInputDialog::getText(this, tr("Write zero-terminated string"), tr("String:"),
-    d.setInputMode(QInputDialog::InputMode::TextInput);
-    QString str = d.getText(this, tr("Write zero-terminated string"), tr("String:"),
                                         QLineEdit::Normal, "", &ok);
-    if (ok && !str.isEmpty()) {
+    if (!ok || str.isEmpty()) {
-        Core()->cmdRawAt(QString("wz %1").arg(str), getLocationAddress());
+        return;
-        refresh();
     }
+    {
+        RzCoreLocked core(Core());
+        rz_core_write_string_zero_at(core, getLocationAddress(), str.toUtf8().constData());
+    }
+    refresh();
 }
 
 void HexWidget::updateItemLength()