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void cmd_cb(Fl_Widget*, void*) {
    string cmd0;
    string cmd1;
    string cmd;

    int onoff_put = put_rbtn->value();
    int onoff_dir = dir_rbtn->value();

    if (onoff_put == 1){
        cmd0 = "put";
    } else {
        cmd0 = "get";
    }

    if (onoff_dir == 1){
        cmd1 = "-r";
    } else {
        cmd1 = "";
    }

    const char* fileName = file_input -> value();
    const char* toName = to_input -> value();

    cmd = cmd0 + " " + cmd1 + " \"" + string(fileName) + "\" " + string(toName);
    cout << "cmd " << cmd << endl;

    cmd_input -> value("");
    cmd_input -> value(cmd.c_str());

    string cmdCopy = "echo '" + cmd + "' | LANG=ja_JP.UTF-8 pbcopy"; // 対応箇所
    output_line -> insert(cmdCopy.c_str());
    output_line -> insert("\n");
    system(cmdCopy.c_str());
}

#include <SFTPAssist.h>
#include <FileChooser.h>

Fl_Window *window;
Fl_Group *radio_btns, *radio_btns2;
Fl_Radio_Round_Button *get_rbtn, *put_rbtn, *file_rbtn, *dir_rbtn;
Fl_Box *pc_label, *file_label, *to_label, *conn_label, *cmd_label;
Fl_Input *file_input, *to_input, *conn_input, *cmd_input;
Fl_Button *conn_btn, *cmd_btn, *clear_btn, *fileFcBtn, *toFcBtn;
Fl_Choice *choice;
FileChooser* chooser;

void conn_cb(Fl_Widget*, void*) {
    string cmd_conn;
    string pc;

    int choice_num = choice -> value();
    switch(choice_num){
        case 0:{
            pc = "aaa.local";
            break;
        }
        case 1:{
            pc = "bbb.local";
            break;
        }
        case 2:{
            pc = "ccc.local";
            break;
        }
    }

    string cmd_pwd = "pwd";
    system(cmd_pwd.c_str());

    cmd_conn = "sftp " + pc;
    cout << "cmd_conn " << cmd_conn << endl;

    conn_input -> value("");
    conn_input -> value(cmd_conn.c_str());

    string cmdConnCopy = "printf '" + cmd_conn + "' | pbcopy";
    system(cmdConnCopy.c_str());

}

void cmd_cb(Fl_Widget*, void*) {
    string cmd0;
    string cmd1;
    string cmd;

    int onoff_put = put_rbtn->value();
    int onoff_dir = dir_rbtn->value();

    if (onoff_put == 1){
        cmd0 = "put";
    } else {
        cmd0 = "get";
    }

    if (onoff_dir == 1){
        cmd1 = "-r";
    } else {
        cmd1 = "";
    }

    const char* fileName = file_input -> value();
    const char* toName = to_input -> value();

    cmd = cmd0 + " " + cmd1 + " \"" + string(fileName) + "\" " + string(toName);
    cout << "cmd " << cmd << endl;

    cmd_input -> value("");
    cmd_input -> value(cmd.c_str());

    string cmdCopy = "printf '" + cmd + "' | pbcopy";
    system(cmdCopy.c_str());

}

void clear_cb(Fl_Widget*, void*) {
    file_input->value("");
    to_input->value("");
    conn_input->value("");
    cmd_input->value("");
}

void FileChooserCB(Fl_Widget*, void*) {
    int fc;
    string appdir = "/Volumes/Macintosh HD/Users/xxxxx/";
    int onoff_dir = dir_rbtn->value();

    if (onoff_dir == 1){
        fc = 4; // FileChooser::DIRECTORY
    } else {
        fc = 0; // FileChooser::SINGLE
    }

    int x_win = window->x_root();
    int y_win = window->y_root();
    cout<<"x_win "<< x_win <<" y_win "<< y_win <<endl;

    chooser = new FileChooser(appdir.c_str(), 
                        "*.*",
                        fc,
                        "File/Dir Chooser",490,380
                        );
    
    chooser->resize(x_win+85,y_win+50,490,380);
    chooser->set_modal();
    chooser->Fl_Window::show();

    while(chooser->Fl_Window::shown()){
        Fl::wait();
    }
}

int main(int argc, char **argv) {
    Fl::set_font(FL_HELVETICA, "Osaka");
    window = new Fl_Window(100,100,360,245,"SFTP Assist");
    window->color(fl_rgb_color(147,184,129)); // やなぎぞめ
    
    // file
    pc_label = new Fl_Box(18,15,35,16,"PC");
    window->add(pc_label);
    pc_label->labelsize(14);
    pc_label->labelcolor(fl_rgb_color(255,239,213));
    pc_label->align(Fl_Align(FL_ALIGN_INSIDE|FL_ALIGN_LEFT));

    // PC選択項目
    Fl_Menu_Item pc_type[4] = {
        {"Mac mini Intel"},
        {"WindowsPC"},
        {"LinuxPC"}
    };

    // PC選択メニュー
    choice = new Fl_Choice(55, 10, 220, 25, nullptr);
    choice->menu(pc_type);

    radio_btns = new Fl_Group(75,45,185,20,"");{
        radio_btns->labelsize(12);

        // put_rbtn
        put_rbtn = new Fl_Radio_Round_Button(75,45,90,20,"PUT");
        put_rbtn->labelcolor(fl_rgb_color(255,239,213));
        put_rbtn->setonly();
        
        // get_rbtn
        get_rbtn = new Fl_Radio_Round_Button(170,45,90,20,"GET");
        get_rbtn->labelcolor(fl_rgb_color(255,239,213));
            
    }
    radio_btns->end();

    radio_btns2 = new Fl_Group(75,75,185,20,"");{
        radio_btns2->labelsize(12);

        // file_rbtn
        file_rbtn = new Fl_Radio_Round_Button(75,75,90,20,"FILE");
        file_rbtn->labelcolor(fl_rgb_color(255,239,213));
        file_rbtn->setonly();
        
        // dir_rbtn
        dir_rbtn = new Fl_Radio_Round_Button(170,75,90,20,"DIR");
        dir_rbtn->labelcolor(fl_rgb_color(255,239,213));
            
    }
    radio_btns2->end();

    // FILE/DIR
    file_label = new Fl_Box(18,112,52,13,"FILE/DIR");
    file_label->labelcolor(fl_rgb_color(255,239,213));
    file_label->labelsize(12);
    file_label->align(Fl_Align(FL_ALIGN_INSIDE|FL_ALIGN_LEFT));

    file_input = new Fl_Input(75,105,165,25,"");
    file_input->textsize(12);

    // fileFcBtn
    fileFcBtn = new Fl_Button(245,108,30,20,"...");
    fileFcBtn->color(fl_rgb_color(112,128,144));
    fileFcBtn->labelcolor(fl_rgb_color(255,239,213));
    fileFcBtn->labelsize(14);
    fileFcBtn->callback(FileChooserCB);

    // TO
    to_label = new Fl_Box(18,146,20,14,"TO");
    to_label->labelcolor(fl_rgb_color(255,239,213));
    to_label->labelsize(14);
    to_label->align(Fl_Align(FL_ALIGN_INSIDE|FL_ALIGN_LEFT));

    to_input = new Fl_Input(75,140,165,25,"");
    to_input->textsize(12);

    // toFcBtn
    toFcBtn = new Fl_Button(245,143,30,20,"...");
    toFcBtn->color(fl_rgb_color(112,128,144));
    toFcBtn->labelcolor(fl_rgb_color(255,239,213));
    toFcBtn->labelsize(14);
    toFcBtn->callback(FileChooserCB);

    // CONN
    conn_label = new Fl_Box(18,181,44,14,"CONN");
    conn_label->labelcolor(fl_rgb_color(255,239,213));
    conn_label->labelsize(14);
    conn_label->align(Fl_Align(FL_ALIGN_INSIDE|FL_ALIGN_LEFT));

    conn_input = new Fl_Input(75,175,270,25,"");
    conn_input->color(fl_rgb_color(187,200,230)); // あわふじいろ
    conn_input->textsize(12);

    // CMD
    cmd_label = new Fl_Box(18,216,34,14,"CMD");
    cmd_label->labelcolor(fl_rgb_color(255,239,213));
    cmd_label->labelsize(14);
    cmd_label->align(Fl_Align(FL_ALIGN_INSIDE|FL_ALIGN_LEFT));

    cmd_input = new Fl_Input(75,210,270,25,"");
    cmd_input->color(fl_rgb_color(187,200,230));
    cmd_input->textsize(12);

    // CONN_BTN
    conn_btn = new Fl_Button(295,10,50,40,"CONN");
    conn_btn->color(fl_rgb_color(112,128,144));
    conn_btn->labelcolor(fl_rgb_color(255,239,213));
    conn_btn->labelsize(14);
    conn_btn->callback(conn_cb);

    // CMD_BTN
    cmd_btn = new Fl_Button(295,60,50,40,"CMD");
    cmd_btn->color(fl_rgb_color(112,128,144));
    cmd_btn->labelcolor(fl_rgb_color(255,239,213));
    cmd_btn->labelsize(14);
    cmd_btn->callback(cmd_cb);

    clear_btn = new Fl_Button(295,110,50,25,"CLR");
    clear_btn->color(fl_rgb_color(112,128,144));
    clear_btn->labelcolor(fl_rgb_color(255,239,213));
    clear_btn->labelsize(14);
    clear_btn->callback(clear_cb);

    window->end();
    window->show(argc, argv);
    return Fl::run();
}

#include <mailtest.h>
#include <clx/base64.h>

int main(int argc,char *argv[])
{
	struct passwd	*pwd;
	char	hostname[MAXHOSTNAMELEN+1];
	time_t	t;
	char	from[65];
	char	b_subject[1024];
	char	j_data[1024*2];
	char	*ptr;
	char	buf[1024];
	char	boundary[80];
	char	*f_buf,*b_buf;
	FILE	*fpd;
	struct stat	st;
	int	i;
	int	soc;

	if(argc <= 1){
		fprintf(stderr,"mailtest recpient [file] [file] ...\n");
		return 0;
	}

	 // JIS:Base64のサブジェクトを標準入力から取得
	GetSubject(b_subject);

	 // 本文データを標準入力から取得
	GetData(j_data);

	cout << "GetData pass" << endl;

	 // 送信者設定
	pwd = getpwuid(getuid());
	gethostname(hostname,MAXHOSTNAMELEN);
	sprintf(from,"%s@%s",pwd->pw_name,hostname);

	cout << "from: " << from << endl;

	 // ローカルホストのSMTPに接続
	if((soc = ConnectHost("localhost","smtp",25)) == -1){
		fprintf(stderr,"Cannot connect to local smtp.\n");
		return 0;
	}

	 // SMTPとの通信
	SOCprintf(soc,"HELO %s\r\n",hostname);
	SOCrecv(soc,buf);
	SOCprintf(soc,"MAIL FROM:%s\r\n",from);
	SOCrecv(soc,buf);
	SOCprintf(soc,"RCPT TO:%s\r\n",argv[1]);
	SOCrecv(soc,buf);

	 // データ送信開始
	SOCprintf(soc,"DATA\r\n");
	SOCrecv(soc,buf);

	 // ヘッダ部送信
	t=time(&t);
	SOCprintf(soc,"Date: %s",ctime(&t));
	SOCprintf(soc,"From: %s\r\n",from);
	SOCprintf(soc,"Subject: =?ISO-2022-JP?B?%s?=\r\n",b_subject);
	SOCprintf(soc,"To: %s\r\n",argv[1]);
	SOCprintf(soc,"MIME-Version: 1.0\r\n");
	sprintf(boundary,"%010d_%09d",t,getpid()); // プロセスID取得
	SOCprintf(soc,"Content-Type: MULTIPART/mixed; BOUNDARY=%s\r\n",boundary);
	SOCprintf(soc,"\r\n");

	 // データ部送信
	SOCprintf(soc,"--%s\r\n",boundary);
	SOCprintf(soc,"Content-Type: TEXT/plain; charset=ISO-2022-JP\r\n");
	SOCprintf(soc,"\r\n");

	send(soc,j_data,strlen(j_data),0);

	SOCprintf(soc,"\r\n");

	 // 添付ファイル送信
	for(i = 2; i < argc; i++){
		if((fpd = fopen(argv[i], "r"))!= NULL){
			printf("argv[%d] %s\n",i,argv[i]);

			fstat(fileno(fpd), &st); // ファイル状態を取得
			f_buf=(char *)malloc(st.st_size);
			b_buf=(char *)malloc(st.st_size * 2);
			fread(f_buf, 1, st.st_size, fpd); // ファイルデータを1バイトずつ全サイズ分をf_bufに格納
			fclose(fpd);
			SOCprintf(soc,"--%s\r\n",boundary);
			SOCprintf(soc,"Content-Type: application; name=%s; x-unix-mode=0777\r\n",argv[i]);
			SOCprintf(soc,"Content-Transfer-Encoding: BASE64\r\n");
			SOCprintf(soc,"Content-Description: %s\r\n",argv[i]);
			SOCprintf(soc,"\r\n");
			
			// Base64変換
			string f_buf_str = string(f_buf);
			string f_buf_64 = clx::base64::encode(f_buf_str);
			f_buf_64.copy(b_buf, st.st_size *2 -1);

			// base64(f_buf,st.st_size,b_buf); // base64関数は廃止

			send(soc,b_buf,strlen(b_buf),0);
			SOCprintf(soc,"\r\n");
			SOCprintf(soc,"\r\n");
			free(f_buf);
			free(b_buf);
		}
		else{
			fprintf(stderr,"%s cannot read.\n",argv[i]);
		}
	}

	SOCprintf(soc,"--%s--\r\n",boundary);

	 // データ送信完了 
	SOCprintf(soc,".\r\n");
	SOCrecv(soc,buf);

	 // 終了 
	SOCprintf(soc,"QUIT\r\n");
	SOCrecv(soc,buf);

	 // ソケットクローズ 
	SocketClose(soc);
}

mailtestコマンド(仮送信先と添付ファイル)
--------------------------------------------------
mailtest test_recv@example.com mailtest.h
--------------------------------------------------
出力
--------------------------------------------------
Subject: 日本語
instr 日本語
outstr BF|K\8l // ISO-2022-JP
sub_jis: BF|K\8l
sub_64: GyRCRnxLXDhs // Base64
b_subject: GyRCRnxLXDhs
GetData開始
test
.
instr test

outstr test

GetData pass
from: noMac-mini.local
soc: 3
sockaddr: 0x7ffee0f0b0c8
IP adrress: 0x7ffee0f0b0cc
HELO 
>>>>>220 localhost ESMTP SubEthaSMTP null

MAIL FROM:
>>>>>250 localhost

RCPT TO:
>>>>>250 Ok

DATA
>>>>>250 Ok

Date: From: 
Subject: =?ISO-2022-JP?B??=
To: 
MIME-Version: 1.0
Content-Type: MULTIPART/mixed; BOUNDARY=

--
Content-Type: TEXT/plain; charset=ISO-2022-JP

--
Content-Type: application; name=; x-unix-mode=0777
Content-Transfer-Encoding: BASE64
Content-Description: 

----
.
>>>>>354 End data with <CR><LF>.<CR><LF>

QUIT
>>>>>250 Ok

COMPILER = clang++
CPPFLAGS = -g -w -std=c++98

INCLUDE = -I./include
LDLIBS = 

# ソースファイル
SRCDIR = ./src
SRCS = $(shell find $(SRCDIR) -type f)

# オブジェクトファイル
OBJDIR = ./obj
OBJS = $(addprefix $(OBJDIR), $(patsubst ./src/%.cpp,/%.o,$(SRCS)))

# 実行ファイル
TARGETDIR = ./bin
TARGET = mailtest

# cppファイルからoファイル作成　$<:依存ファイル
$(OBJDIR)/%.o: $(SRCDIR)/%.cpp
	$(COMPILER) $(CPPFLAGS) $(INCLUDE) $(DEBUG) -o $@ -c $<

# oファイルから実行ファイル作成
$(TARGET):$(OBJS)
	$(COMPILER) -o $(TARGETDIR)/$@ $(OBJS) $(LDLIBS)

# 全ソース・コンパイル＆ビルド
.PHONY:all
all: clean $(OBJS) $(TARGET)

# oファイル・実行ファイル削除
.PHONY:clean
clean:
	rm -rf $(OBJS) $(TARGETDIR)/$(TARGET)

Smtp $ make all
rm -rf ./obj/base64.o ./obj/mailtest.o ./obj/ujtoj.o ./bin/mailtest
clang++ -g -std=c++98 -w -I./include  -o obj/base64.o -c src/base64.cpp
clang++ -g -std=c++98 -w -I./include  -o obj/mailtest.o -c src/mailtest.cpp
clang++ -g -std=c++98 -w -I./include  -o obj/ujtoj.o -c src/ujtoj.cpp
clang++ -o ./bin/mailtest ./obj/base64.o ./obj/mailtest.o ./obj/ujtoj.o