# Cppcheck report - LibreOffice: sal/android/libreofficekit-jni.c

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    /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
    /*
     * This file is part of the LibreOffice project.
     *
     * This Source Code Form is subject to the terms of the Mozilla Public
     * License, v. 2.0. If a copy of the MPL was not distributed with this
     * file, You can obtain one at http://mozilla.org/MPL/2.0/.
     */

    #include <fcntl.h>
    #include <errno.h>
    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    #include <sys/mman.h>
    #include <sys/stat.h>
    #include <sys/time.h>
    #include <sys/types.h>
    #include <time.h>

    #include <jni.h>

    #include <android/log.h>

    #include <osl/detail/android-bootstrap.h>

    #include <LibreOfficeKit/LibreOfficeKit.h>

    #define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "LibreOfficeKit", __VA_ARGS__))
    #define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, "LibreOfficeKit", __VA_ARGS__))

    /* These are valid / used in all apps. */
    extern const char* data_dir;
    extern const char* cache_dir;
    extern void* apk_file;
    extern int apk_file_size;

    extern void Java_org_libreoffice_android_Bootstrap_putenv(JNIEnv* env, jobject clazz, jstring string);
    extern void Java_org_libreoffice_android_Bootstrap_redirect_1stdio(JNIEnv* env, jobject clazz, jboolean state);

    extern LibreOfficeKit* libreofficekit_hook(const char* install_path);

    static char *full_program_dir = NULL;

    /// Call the same method from Bootstrap.
    __attribute__ ((visibility("default")))
    void
    Java_org_libreoffice_kit_LibreOfficeKit_putenv<--- The function 'Java_org_libreoffice_kit_LibreOfficeKit_putenv' is never used.
        (JNIEnv* env, jobject clazz, jstring string)
    {
        Java_org_libreoffice_android_Bootstrap_putenv(env, clazz, string);
    }

    /// Call the same method from Bootstrap.
    __attribute__ ((visibility("default")))
    void Java_org_libreoffice_kit_LibreOfficeKit_redirectStdio<--- The function 'Java_org_libreoffice_kit_LibreOfficeKit_redirectStdio' is never used.
        (JNIEnv* env, jobject clazz, jboolean state)
    {
        Java_org_libreoffice_android_Bootstrap_redirect_1stdio(env, clazz, state);
    }

    /// Initialize the LibreOfficeKit.
    __attribute__ ((visibility("default")))
    jboolean Java_org_libreoffice_kit_LibreOfficeKit_initializeNative<--- The function 'Java_org_libreoffice_kit_LibreOfficeKit_initializeNative' is never used.
        (JNIEnv* env, jobject clazz,
         jstring dataDir, jstring cacheDir, jstring apkFile)
    {
        struct stat st;
        int fd;
        const char *dataDirPath;
        const char *cacheDirPath;
        const char *apkFilePath;

        const char program_dir[] = "/program";
        size_t data_dir_len;

        (void) clazz;

        dataDirPath = (*env)->GetStringUTFChars(env, dataDir, NULL);
        data_dir = strdup(dataDirPath);
        (*env)->ReleaseStringUTFChars(env, dataDir, dataDirPath);

        cacheDirPath = (*env)->GetStringUTFChars(env, cacheDir, NULL);
        cache_dir = strdup(cacheDirPath);
        (*env)->ReleaseStringUTFChars(env, cacheDir, cacheDirPath);

        apkFilePath =  (*env)->GetStringUTFChars(env, apkFile, NULL);

        fd = open(apkFilePath, O_RDONLY);
        if (fd == -1) {
            LOGE("Could not open %s", apkFilePath);
            (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
            return JNI_FALSE;
        }
        if (fstat(fd, &st) == -1) {
            LOGE("Could not fstat %s", apkFilePath);
            close(fd);
            (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
            return JNI_FALSE;
        }
        apk_file = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
        close(fd);

        if (apk_file == MAP_FAILED) {
            LOGE("Could not mmap %s", apkFilePath);
            (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
            return JNI_FALSE;
        }
        apk_file_size = st.st_size;

        (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);

        if (!setup_cdir())
        {
            LOGE("setup_cdir failed");
            return JNI_FALSE;
        }

        if (!setup_assets_tree())
        {
            LOGE("setup_assets_tree failed");
            return JNI_FALSE;
        }

        // Extract files from the .apk that can't be used mmapped directly from it
        extract_files(UNPACK_TREE, UNPACK_TREE, 0);
        extract_files(UNPACK_TREE_GZ, UNPACK_TREE_GZ, 1);

        // LibreOfficeKit expects a path to the program/ directory
        free(full_program_dir);
        data_dir_len = strlen(data_dir);
        full_program_dir = malloc(data_dir_len + sizeof(program_dir));

        strncpy(full_program_dir, data_dir, data_dir_len);
        strncpy(full_program_dir + data_dir_len, program_dir, sizeof(program_dir));

        // Initialize LibreOfficeKit
        if (!libreofficekit_hook(full_program_dir))
        {
            LOGE("libreofficekit_hook returned null");
            return JNI_FALSE;
        }

        LOGI("LibreOfficeKit successfully initialized");

        return JNI_TRUE;
    }

    __attribute__ ((visibility("default")))
    jobject Java_org_libreoffice_kit_LibreOfficeKit_getLibreOfficeKitHandle<--- The function 'Java_org_libreoffice_kit_LibreOfficeKit_getLibreOfficeKitHandle' is never used.
        (JNIEnv* env, jobject clazz)
    {
        LibreOfficeKit* aOffice;

        (void) env;
        (void) clazz;

        aOffice = libreofficekit_hook(full_program_dir);

        return (*env)->NewDirectByteBuffer(env, (void*) aOffice, sizeof(LibreOfficeKit));
    }

    /* vim:set shiftwidth=4 softtabstop=4 expandtab: */