fix: decode base64-encoded file content

2026-05-27 12:20:35 -05:00
parent b09d082f11
commit 4658db7045
1 changed files with 247 additions and 125 deletions
@@ -1,125 +1,247 @@
-LyoKICogQ29weXJpZ2h0IDIwMDktMjAxMSBDZWRyaWMgUHJpc2NhbAogKgogKiBMaWNlbnNlZCB1
+/*
-bmRlciB0aGUgQXBhY2hlIExpY2Vuc2UsIFZlcnNpb24gMi4wICh0aGUgIkxpY2Vuc2UiKTsKICog
+ * Copyright 2009-2011 Cedric Priscal
-eW91IG1heSBub3QgdXNlIHRoaXMgZmlsZSBleGNlcHQgaW4gY29tcGxpYW5jZSB3aXRoIHRoZSBM
+ *
-aWNlbnNlLgogKiBZb3UgbWF5IG9idGFpbiBhIGNvcHkgb2YgdGhlIExpY2Vuc2UgYXQKICoKICog
+ * Licensed under the Apache License, Version 2.0 (the "License");
-aHR0cDovL3d3dy5hcGFjaGUub3JnL2xpY2Vuc2VzL0xJQ0VOU0UtMi4wCiAqCiAqIFVubGVzcyBy
+ * you may not use this file except in compliance with the License.
-ZXF1aXJlZCBieSBhcHBsaWNhYmxlIGxhdyBvciBhZ3JlZWQgdG8gaW4gd3JpdGluZywgc29mdHdh
+ * You may obtain a copy of the License at
-cmUKICogZGlzdHJpYnV0ZWQgdW5kZXIgdGhlIExpY2Vuc2UgaXMgZGlzdHJpYnV0ZWQgb24gYW4g
+ *
-IkFTIElTIiBCQVNJUywKICogV0lUSE9VVCBXQVJSQU5USUVTIE9SIENPTkRJVElPTlMgT0YgQU5Z
+ * http://www.apache.org/licenses/LICENSE-2.0
-IEtJTkQsIGVpdGhlciBleHByZXNzIG9yIGltcGxpZWQuCiAqIFNlZSB0aGUgTGljZW5zZSBmb3Ig
+ *
-dGhlIHNwZWNpZmljIGxhbmd1YWdlIGdvdmVybmluZyBwZXJtaXNzaW9ucyBhbmQKICogbGltaXRh
+ * Unless required by applicable law or agreed to in writing, software
-dGlvbnMgdW5kZXIgdGhlIExpY2Vuc2UuCiAqLwoKI2luY2x1ZGUgPHRlcm1pb3MuaD4KI2luY2x1
+ * distributed under the License is distributed on an "AS IS" BASIS,
-ZGUgPHVuaXN0ZC5oPgojaW5jbHVkZSA8c3lzL3R5cGVzLmg+CiNpbmNsdWRlIDxzeXMvc3RhdC5o
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-PgojaW5jbHVkZSA8ZmNudGwuaD4KI2luY2x1ZGUgPHN0cmluZy5oPgojaW5jbHVkZSA8am5pLmg+
+ * See the License for the specific language governing permissions and
-CgojaW5jbHVkZSAiU2VyaWFsUG9ydC5oIgoKI2luY2x1ZGUgImFuZHJvaWQvbG9nLmgiCgpzdGF0
+ * limitations under the License.
-aWMgY29uc3QgY2hhciAqVEFHID0gInNlcmlhbF9wb3J0IjsKI2RlZmluZSBMT0dJKGZtdCwgYXJn
+ */
-cy4uLikgX19hbmRyb2lkX2xvZ19wcmludChBTkRST0lEX0xPR19JTkZPLCAgVEFHLCBmbXQsICMj
+
-YXJncykKI2RlZmluZSBMT0dEKGZtdCwgYXJncy4uLikgX19hbmRyb2lkX2xvZ19wcmludChBTkRS
+#include <termios.h>
-T0lEX0xPR19ERUJVRywgVEFHLCBmbXQsICMjYXJncykKI2RlZmluZSBMT0dFKGZtdCwgYXJncy4u
+#include <unistd.h>
-LikgX19hbmRyb2lkX2xvZ19wcmludChBTkRST0lEX0xPR19FUlJPUiwgVEFHLCBmbXQsICMjYXJn
+#include <sys/types.h>
-cykKCnN0YXRpYyBzcGVlZF90IGdldEJhdWRyYXRlKGppbnQgYmF1ZHJhdGUpIHsKICAgIHN3aXRj
+#include <sys/stat.h>
-aCAoYmF1ZHJhdGUpIHsKICAgICAgICBjYXNlIDA6CiAgICAgICAgICAgIHJldHVybiBCMDsKICAg
+#include <fcntl.h>
-ICAgICBjYXNlIDUwOgogICAgICAgICAgICByZXR1cm4gQjUwOwogICAgICAgIGNhc2UgNzU6CiAg
+#include <string.h>
-ICAgICAgICAgIHJldHVybiBCNzU7CiAgICAgICAgY2FzZSAxMTA6CiAgICAgICAgICAgIHJldHVy
+#include <jni.h>
-biBCMTEwOwogICAgICAgIGNhc2UgMTM0OgogICAgICAgICAgICByZXR1cm4gQjEzNDsKICAgICAg
+
-ICBjYXNlIDE1MDoKICAgICAgICAgICAgcmV0dXJuIEIxNTA7CiAgICAgICAgY2FzZSAyMDA6CiAg
+#include "SerialPort.h"
-ICAgICAgICAgIHJldHVybiBCMjAwOwogICAgICAgIGNhc2UgMzAwOgogICAgICAgICAgICByZXR1
+
-cm4gQjMwMDsKICAgICAgICBjYXNlIDYwMDoKICAgICAgICAgICAgcmV0dXJuIEI2MDA7CiAgICAg
+#include "android/log.h"
-ICAgY2FzZSAxMjAwOgogICAgICAgICAgICByZXR1cm4gQjEyMDA7CiAgICAgICAgY2FzZSAxODAw
+
-OgogICAgICAgICAgICByZXR1cm4gQjE4MDA7CiAgICAgICAgY2FzZSAyNDAwOgogICAgICAgICAg
+static const char *TAG = "serial_port";
-ICByZXR1cm4gQjI0MDA7CiAgICAgICAgY2FzZSA0ODAwOgogICAgICAgICAgICByZXR1cm4gQjQ4
+#define LOGI(fmt, args...) __android_log_print(ANDROID_LOG_INFO,  TAG, fmt, ##args)
-MDA7CiAgICAgICAgY2FzZSA5NjAwOgogICAgICAgICAgICByZXR1cm4gQjk2MDA7CiAgICAgICAg
+#define LOGD(fmt, args...) __android_log_print(ANDROID_LOG_DEBUG, TAG, fmt, ##args)
-Y2FzZSAxOTIwMDoKICAgICAgICAgICAgcmV0dXJuIEIxOTIwMDsKICAgICAgICBjYXNlIDM4NDAw
+#define LOGE(fmt, args...) __android_log_print(ANDROID_LOG_ERROR, TAG, fmt, ##args)
-OgogICAgICAgICAgICByZXR1cm4gQjM4NDAwOwogICAgICAgIGNhc2UgNTc2MDA6CiAgICAgICAg
+
-ICAgIHJldHVybiBCNTc2MDA7CiAgICAgICAgY2FzZSAxMTUyMDA6CiAgICAgICAgICAgIHJldHVy
+static speed_t getBaudrate(jint baudrate) {
-biBCMTE1MjAwOwogICAgICAgIGNhc2UgMjMwNDAwOgogICAgICAgICAgICByZXR1cm4gQjIzMDQw
+    switch (baudrate) {
-MDsKICAgICAgICBjYXNlIDQ2MDgwMDoKICAgICAgICAgICAgcmV0dXJuIEI0NjA4MDA7CiAgICAg
+        case 0:
-ICAgY2FzZSA1MDAwMDA6CiAgICAgICAgICAgIHJldHVybiBCNTAwMDAwOwogICAgICAgIGNhc2Ug
+            return B0;
-NTc2MDAwOgogICAgICAgICAgICByZXR1cm4gQjU3NjAwMDsKICAgICAgICBjYXNlIDkyMTYwMDoK
+        case 50:
-ICAgICAgICAgICAgcmV0dXJuIEI5MjE2MDA7CiAgICAgICAgY2FzZSAxMDAwMDAwOgogICAgICAg
+            return B50;
-ICAgICByZXR1cm4gQjEwMDAwMDA7CiAgICAgICAgY2FzZSAxMTUyMDAwOgogICAgICAgICAgICBy
+        case 75:
-ZXR1cm4gQjExNTIwMDA7CiAgICAgICAgY2FzZSAxNTAwMDAwOgogICAgICAgICAgICByZXR1cm4g
+            return B75;
-QjE1MDAwMDA7CiAgICAgICAgY2FzZSAyMDAwMDAwOgogICAgICAgICAgICByZXR1cm4gQjIwMDAw
+        case 110:
-MDA7CiAgICAgICAgY2FzZSAyNTAwMDAwOgogICAgICAgICAgICByZXR1cm4gQjI1MDAwMDA7CiAg
+            return B110;
-ICAgICAgY2FzZSAzMDAwMDAwOgogICAgICAgICAgICByZXR1cm4gQjMwMDAwMDA7CiAgICAgICAg
+        case 134:
-Y2FzZSAzNTAwMDAwOgogICAgICAgICAgICByZXR1cm4gQjM1MDAwMDA7CiAgICAgICAgY2FzZSA0
+            return B134;
-MDAwMDAwOgogICAgICAgICAgICByZXR1cm4gQjQwMDAwMDA7CiAgICAgICAgZGVmYXVsdDoKICAg
+        case 150:
-ICAgICAgICAgcmV0dXJuIC0xOwogICAgfQp9CgovKgogKiBDbGFzczogICAgIGFuZHJvaWRfc2Vy
+            return B150;
-aWFscG9ydF9TZXJpYWxQb3J0CiAqIE1ldGhvZDogICAgb3BlbgogKiBTaWduYXR1cmU6IChMamF2
+        case 200:
-YS9sYW5nL1N0cmluZztJSUlJSSlMamF2YS9pby9GaWxlRGVzY3JpcHRvcjsKICovCkpOSUVYUE9S
+            return B200;
-VCBqb2JqZWN0IEpOSUNBTEwgSmF2YV9hbmRyb2lkX3NlcmlhbHBvcnRfU2VyaWFsUG9ydF9vcGVu
+        case 300:
-CiAgICAgICAgKEpOSUVudiAqZW52LCBqb2JqZWN0IHRoaXosIGpzdHJpbmcgcGF0aCwgamludCBi
+            return B300;
-YXVkcmF0ZSwgamludCBkYXRhQml0cywgamludCBwYXJpdHksCiAgICAgICAgIGppbnQgc3RvcEJp
+        case 600:
-dHMsCiAgICAgICAgIGppbnQgZmxhZ3MpIHsKCiAgICBpbnQgZmQ7CiAgICBzcGVlZF90IHNwZWVk
+            return B600;
-OwogICAgam9iamVjdCBtRmlsZURlc2NyaXB0b3I7CgogICAgLyogQ2hlY2sgYXJndW1lbnRzICov
+        case 1200:
-CiAgICB7CiAgICAgICAgc3BlZWQgPSBnZXRCYXVkcmF0ZShiYXVkcmF0ZSk7CiAgICAgICAgaWYg
+            return B1200;
-KHNwZWVkID09IC0xKSB7CiAgICAgICAgICAgIC8qIFRPRE86IHRocm93IGFuIGV4Y2VwdGlvbiAq
+        case 1800:
-LwogICAgICAgICAgICBMT0dFKCJJbnZhbGlkIGJhdWRyYXRlIik7CiAgICAgICAgICAgIHJldHVy
+            return B1800;
-biBOVUxMOwogICAgICAgIH0KICAgIH0KCiAgICAvKiBPcGVuaW5nIGRldmljZSAqLwogICAgewog
+        case 2400:
-ICAgICAgIGpib29sZWFuIGlzY29weTsKICAgICAgICBjb25zdCBjaGFyICpwYXRoX3V0ZiA9ICgq
+            return B2400;
-ZW52KS0+R2V0U3RyaW5nVVRGQ2hhcnMoZW52LCBwYXRoLCAmaXNjb3B5KTsKICAgICAgICBMT0dE
+        case 4800:
-KCJPcGVuaW5nIHNlcmlhbCBwb3J0ICVzIHdpdGggZmxhZ3MgMHgleCIsIHBhdGhfdXRmLCBPX1JE
+            return B4800;
-V1IgfCBmbGFncyk7CiAgICAgICAgZmQgPSBvcGVuKHBhdGhfdXRmLCBPX1JEV1IgfCBmbGFncyk7
+        case 9600:
-CiAgICAgICAgTE9HRCgib3BlbigpIGZkID0gJWQiLCBmZCk7CiAgICAgICAgKCplbnYpLT5SZWxl
+            return B9600;
-YXNlU3RyaW5nVVRGQ2hhcnMoZW52LCBwYXRoLCBwYXRoX3V0Zik7CiAgICAgICAgaWYgKGZkID09
+        case 19200:
-IC0xKSB7CiAgICAgICAgICAgIC8qIFRocm93IGFuIGV4Y2VwdGlvbiAqLwogICAgICAgICAgICBM
+            return B19200;
-T0dFKCJDYW5ub3Qgb3BlbiBwb3J0Iik7CiAgICAgICAgICAgIC8qIFRPRE86IHRocm93IGFuIGV4
+        case 38400:
-Y2VwdGlvbiAqLwogICAgICAgICAgICByZXR1cm4gTlVMTDsKICAgICAgICB9CiAgICB9CgogICAg
+            return B38400;
-LyogQ29uZmlndXJlIGRldmljZSAqLwogICAgewogICAgICAgIHN0cnVjdCB0ZXJtaW9zIGNmZzsK
+        case 57600:
-ICAgICAgICBMT0dEKCJDb25maWd1cmluZyBzZXJpYWwgcG9ydCIpOwogICAgICAgIGlmICh0Y2dl
+            return B57600;
-dGF0dHIoZmQsICZjZmcpKSB7CiAgICAgICAgICAgIExPR0UoInRjZ2V0YXR0cigpIGZhaWxlZCIp
+        case 115200:
-OwogICAgICAgICAgICBjbG9zZShmZCk7CiAgICAgICAgICAgIC8qIFRPRE86IHRocm93IGFuIGV4
+            return B115200;
-Y2VwdGlvbiAqLwogICAgICAgICAgICByZXR1cm4gTlVMTDsKICAgICAgICB9CgogICAgICAgIGNm
+        case 230400:
-bWFrZXJhdygmY2ZnKTsKICAgICAgICBjZnNldGlzcGVlZCgmY2ZnLCBzcGVlZCk7CiAgICAgICAg
+            return B230400;
-Y2ZzZXRvc3BlZWQoJmNmZywgc3BlZWQpOwoKCiAgICAgICAgY2ZnLmNfY2ZsYWcgJj0gfkNTSVpF
+        case 460800:
-OwogICAgICAgIHN3aXRjaCAoZGF0YUJpdHMpIHsKICAgICAgICAgICAgY2FzZSA1OgogICAgICAg
+            return B460800;
-ICAgICAgICAgY2ZnLmNfY2ZsYWcgfD0gQ1M1OyAgICAvL+S9v+eUqDXkvY3mlbDmja7kvY0KICAg
+        case 500000:
-ICAgICAgICAgICAgIGJyZWFrOwogICAgICAgICAgICBjYXNlIDY6CiAgICAgICAgICAgICAgICBj
+            return B500000;
-ZmcuY19jZmxhZyB8PSBDUzY7ICAgIC8v5L2/55SoNuS9jeaVsOaNruS9jQogICAgICAgICAgICAg
+        case 576000:
-ICAgYnJlYWs7CiAgICAgICAgICAgIGNhc2UgNzoKICAgICAgICAgICAgICAgIGNmZy5jX2NmbGFn
+            return B576000;
-IHw9IENTNzsgICAgLy/kvb/nlKg35L2N5pWw5o2u5L2NCiAgICAgICAgICAgICAgICBicmVhazsK
+        case 921600:
-ICAgICAgICAgICAgY2FzZSA4OgogICAgICAgICAgICAgICAgY2ZnLmNfY2ZsYWcgfD0gQ1M4OyAg
+            return B921600;
-ICAvL+S9v+eUqDjkvY3mlbDmja7kvY0KICAgICAgICAgICAgICAgIGJyZWFrOwogICAgICAgICAg
+        case 1000000:
-ICBkZWZhdWx0OgogICAgICAgICAgICAgICAgY2ZnLmNfY2ZsYWcgfD0gQ1M4OwogICAgICAgICAg
+            return B1000000;
-ICAgICAgYnJlYWs7CiAgICAgICAgfQoKICAgICAgICBzd2l0Y2ggKHBhcml0eSkgewogICAgICAg
+        case 1152000:
-ICAgICBjYXNlIDA6CiAgICAgICAgICAgICAgICBjZmcuY19jZmxhZyAmPSB+UEFSRU5COyAgICAv
+            return B1152000;
-L+aXoOWlh+WBtuagoemqjAogICAgICAgICAgICAgICAgYnJlYWs7CiAgICAgICAgICAgIGNhc2Ug
+        case 1500000:
-MToKICAgICAgICAgICAgICAgIGNmZy5jX2NmbGFnIHw9IChQQVJPREQgfCBQQVJFTkIpOyAgIC8v
+            return B1500000;
-5aWH5qCh6aqMCiAgICAgICAgICAgICAgICBicmVhazsKICAgICAgICAgICAgY2FzZSAyOgogICAg
+        case 2000000:
-ICAgICAgICAgICAgY2ZnLmNfaWZsYWcgJj0gfihJR05QQVIgfCBQQVJNUkspOyAvLyDlgbbmoKHp
+            return B2000000;
-qowKICAgICAgICAgICAgICAgIGNmZy5jX2lmbGFnIHw9IElOUENLOwogICAgICAgICAgICAgICAg
+        case 2500000:
-Y2ZnLmNfY2ZsYWcgfD0gUEFSRU5COwogICAgICAgICAgICAgICAgY2ZnLmNfY2ZsYWcgJj0gflBB
+            return B2500000;
-Uk9ERDsKICAgICAgICAgICAgICAgIGJyZWFrOwogICAgICAgICAgICBkZWZhdWx0OgogICAgICAgICAg
+        case 3000000:
-ICAgICAgY2ZnLmNfY2ZsYWcgJj0gflBBUkVOQjsKICAgICAgICAgICAgICAgIGJyZWFrOwogICAg
+            return B3000000;
-ICAgIH0KCiAgICAgICAgc3dpdGNoIChzdG9wQml0cykgewogICAgICAgICAgICBjYXNlIDE6CiAg
+        case 3500000:
-ICAgICAgICAgICAgICBjZmcuY19jZmxhZyAmPSB+Q1NUT1BCOyAgICAvLzHkvY3lgZzmraLkvY0K
+            return B3500000;
-ICAgICAgICAgICAgICAgIGJyZWFrOwogICAgICAgICAgICBjYXNlIDI6CiAgICAgICAgICAgICAg
+        case 4000000:
-ICBjZmcuY19jZmxhZyB8PSBDU1RPUEI7ICAgIC8vMuS9jeWBnOatouS9jQogICAgICAgICAgICAg
+            return B4000000;
-ICAgYnJlYWs7CiAgICAgICAgICAgIGRlZmF1bHQ6CiAgICAgICAgICAgICAgICBjZmcuY19jZmxh
+        default:
-ZyAmPSB+Q1NUT1BCOyAgICAvLzHkvY3lgZzmraLkvY0KICAgICAgICAgICAgICAgIGJyZWFrOwog
+            return -1;
-ICAgICAgIH0KCiAgICAgICAgaWYgKHRjc2V0YXR0cihmZCwgVENTQU5PVywgJmNmZykpIHsKICAg
+    }
-ICAgICAgICAgTE9HRSgidGNzZXRhdHRyKCkgZmFpbGVkIik7CiAgICAgICAgICAgIGNsb3NlKGZk
+}
-KTsKICAgICAgICAgICAgLyogVE9ETzogdGhyb3cgYW4gZXhjZXB0aW9uICovCiAgICAgICAgICAg
+
-IHJldHVybiBOVUxMOwogICAgICAgIH0KICAgIH0KCiAgICAvKiBDcmVhdGUgYSBjb3JyZXNwb25k
+/*
-aW5nIGZpbGUgZGVzY3JpcHRvciAqLwogICAgewogICAgICAgIGpjbGFzcyBjRmlsZURlc2NyaXB0
+ * Class:     android_serialport_SerialPort
-b3IgPSAoKmVudiktPkZpbmRDbGFzcyhlbnYsICJqYXZhL2lvL0ZpbGVEZXNjcmlwdG9yIik7CiAg
+ * Method:    open
-ICAgICAgam1ldGhvZElEIGlGaWxlRGVzY3JpcHRvciA9ICgqZW52KS0+R2V0TWV0aG9kSUQoZW52
+ * Signature: (Ljava/lang/String;IIIII)Ljava/io/FileDescriptor;
-LCBjRmlsZURlc2NyaXB0b3IsICI8aW5pdD4iLCAiKClWIik7CiAgICAgICAgamZpZWxkSUQgZGVz
+ */
-Y3JpcHRvcklEID0gKCplbnYpLT5HZXRGaWVsZElEKGVudiwgY0ZpbGVEZXNjcmlwdG9yLCAiZGVz
+JNIEXPORT jobject JNICALL Java_android_serialport_SerialPort_open
-Y3JpcHRvciIsICJJIik7CiAgICAgICAgbUZpbGVEZXNjcmlwdG9yID0gKCplbnYpLT5OZXdPYmpl
+        (JNIEnv *env, jobject thiz, jstring path, jint baudrate, jint dataBits, jint parity,
-Y3QoZW52LCBjRmlsZURlc2NyaXB0b3IsIGlGaWxlRGVzY3JpcHRvcik7CiAgICAgICAgKCplbnYp
+         jint stopBits,
-LT5TZXRJbnRGaWVsZChlbnYsIG1GaWxlRGVzY3JpcHRvciwgZGVzY3JpcHRvcklELCAoamludCkg
+         jint flags) {
-ZmQpOwogICAgfQoKICAgIHJldHVybiBtRmlsZURlc2NyaXB0b3I7Cn0KCi8qCiAqIENsYXNzOiAg
+
-ICAgY2VkcmljX3NlcmlhbF9TZXJpYWxQb3J0CiAqIE1ldGhvZDogICAgY2xvc2UKICogU2lnbmF0
+    int fd;
-dXJlOiAoKVYKICovCkpOSUVYUE9SVCB2b2lkIEpOSUNBTEwgSmF2YV9hbmRyb2lkX3NlcmlhbHBv
+    speed_t speed;
-cnRfU2VyaWFsUG9ydF9jbG9zZQogICAgICAgIChKTklFbnYgKmVudiwgam9iamVjdCB0aGl6KSB7
+    jobject mFileDescriptor;
-CiAgICBqY2xhc3MgU2VyaWFsUG9ydENsYXNzID0gKCplbnYpLT5HZXRPYmplY3RDbGFzcyhlbnYs
+
-IHRoaXopOwogICAgamNsYXNzIEZpbGVEZXNjcmlwdG9yQ2xhc3MgPSAoKmVudiktPkZpbmRDbGFz
+    /* Check arguments */
-cyhlbnYsICJqYXZhL2lvL0ZpbGVEZXNjcmlwdG9yIik7CgogICAgamZpZWxkSUQgbUZkSUQgPSAo
+    {
-KmVudiktPkdldEZpZWxkSUQoZW52LCBTZXJpYWxQb3J0Q2xhc3MsICJtRmQiLCAiTGphdmEvaW8v
+        speed = getBaudrate(baudrate);
-RmlsZURlc2NyaXB0b3I7Iik7CiAgICBqZmllbGRJRCBkZXNjcmlwdG9ySUQgPSAoKmVudiktPkdl
+        if (speed == -1) {
-dEZpZWxkSUQoZW52LCBGaWxlRGVzY3JpcHRvckNsYXNzLCAiZGVzY3JpcHRvciIsICJJIik7Cgog
+            /* TODO: throw an exception */
-ICAgam9iamVjdCBtRmQgPSAoKmVudiktPkdldE9iamVjdEZpZWxkKGVudiwgdGhpeiwgbUZkSUQp
+            LOGE("Invalid baudrate");
-OwogICAgamludCBkZXNjcmlwdG9yID0gKCplbnYpLT5HZXRJbnRGaWVsZChlbnYsIG1GZCwgZGVz
+            return NULL;
-Y3JpcHRvcklEKTsKCiAgICBMT0dEKCJjbG9zZShmZCA9ICVkKSIsIGRlc2NyaXB0b3IpOwogICAg
+        }
-Y2xvc2UoZGVzY3JpcHRvcik7Cn0KCg==
+    }
    /* Opening device */
    {
        jboolean iscopy;
        const char *path_utf = (*env)->GetStringUTFChars(env, path, &iscopy);
        LOGD("Opening serial port %s with flags 0x%x", path_utf, O_RDWR | flags);
        fd = open(path_utf, O_RDWR | flags);
        LOGD("open() fd = %d", fd);
        (*env)->ReleaseStringUTFChars(env, path, path_utf);
        if (fd == -1) {
            /* Throw an exception */
            LOGE("Cannot open port");
            /* TODO: throw an exception */
            return NULL;
        }
    }
    /* Configure device */
    {
        struct termios cfg;
        LOGD("Configuring serial port");
        if (tcgetattr(fd, &cfg)) {
            LOGE("tcgetattr() failed");
            close(fd);
            /* TODO: throw an exception */
            return NULL;
        }
        cfmakeraw(&cfg);
        cfsetispeed(&cfg, speed);
        cfsetospeed(&cfg, speed);
        cfg.c_cflag &= ~CSIZE;
        switch (dataBits) {
            case 5:
                cfg.c_cflag |= CS5;    //使用5位数据位
                break;
            case 6:
                cfg.c_cflag |= CS6;    //使用6位数据位
                break;
            case 7:
                cfg.c_cflag |= CS7;    //使用7位数据位
                break;
            case 8:
                cfg.c_cflag |= CS8;    //使用8位数据位
                break;
            default:
                cfg.c_cflag |= CS8;
                break;
        }
        switch (parity) {
            case 0:
                cfg.c_cflag &= ~PARENB;    //无奇偶校验
                break;
            case 1:
                cfg.c_cflag |= (PARODD | PARENB);   //奇校验
                break;
            case 2:
                cfg.c_iflag &= ~(IGNPAR | PARMRK); // 偶校验
                cfg.c_iflag |= INPCK;
                cfg.c_cflag |= PARENB;
                cfg.c_cflag &= ~PARODD;
                break;
            default:
                cfg.c_cflag &= ~PARENB;
                break;
        }
        switch (stopBits) {
            case 1:
                cfg.c_cflag &= ~CSTOPB;    //1位停止位
                break;
            case 2:
                cfg.c_cflag |= CSTOPB;    //2位停止位
                break;
            default:
                cfg.c_cflag &= ~CSTOPB;    //1位停止位
                break;
        }
        if (tcsetattr(fd, TCSANOW, &cfg)) {
            LOGE("tcsetattr() failed");
            close(fd);
            /* TODO: throw an exception */
            return NULL;
        }
    }
    /* Create a corresponding file descriptor */
    {
        jclass cFileDescriptor = (*env)->FindClass(env, "java/io/FileDescriptor");
        jmethodID iFileDescriptor = (*env)->GetMethodID(env, cFileDescriptor, "<init>", "()V");
        jfieldID descriptorID = (*env)->GetFieldID(env, cFileDescriptor, "descriptor", "I");
        mFileDescriptor = (*env)->NewObject(env, cFileDescriptor, iFileDescriptor);
        (*env)->SetIntField(env, mFileDescriptor, descriptorID, (jint) fd);
    }
    return mFileDescriptor;
 }
 /*
 * Class:     cedric_serial_SerialPort
 * Method:    close
 * Signature: ()V
 */
 JNIEXPORT void JNICALL Java_android_serialport_SerialPort_close
        (JNIEnv *env, jobject thiz) {
    jclass SerialPortClass = (*env)->GetObjectClass(env, thiz);
    jclass FileDescriptorClass = (*env)->FindClass(env, "java/io/FileDescriptor");
    jfieldID mFdID = (*env)->GetFieldID(env, SerialPortClass, "mFd", "Ljava/io/FileDescriptor;");
    jfieldID descriptorID = (*env)->GetFieldID(env, FileDescriptorClass, "descriptor", "I");
    jobject mFd = (*env)->GetObjectField(env, thiz, mFdID);
    jint descriptor = (*env)->GetIntField(env, mFd, descriptorID);
    LOGD("close(fd = %d)", descriptor);
    close(descriptor);
 }