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/*
* Tc.c
* T client. Merely issues commands to the T daemon.
*
* T is a lean Terminal emulator.
*
* This file is part of T.
*
* T is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* T is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* T. If not, see <http://www.gnu.org/licenses/>.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "T.h"
#define ARG_NEWWIN "-n"
#define ARG_EXIT "-x"
static int open_conn();
static TMessage parse_args(int argc, char *argv[]);
static void usage();
static int
open_conn()
{
struct sockaddr_un sock_addr;
int sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (sock_fd < 0)
err("Failed to create socket", EXIT_FAILURE);
memset(&sock_addr, 0, sizeof(sock_addr));
sock_addr.sun_family = AF_UNIX;
strncpy(sock_addr.sun_path, SOCKPATH, sizeof(sock_addr.sun_path) - 1);
if (connect(sock_fd, (struct sockaddr *) &sock_addr, sizeof(sock_addr)) < 0)
err("Failed to connect to daemon", EXIT_FAILURE);
return sock_fd;
}
static TMessage
parse_args(int argc, char *argv[])
{
if (argc == 1) /* No args means new window */
return MSG_NEWWIN;
if (argc > 2) /* More than 1 arg means derp */
return MSG_ERROR;
if (strcmp(argv[1], ARG_NEWWIN) == 0)
return MSG_NEWWIN;
if (strcmp(argv[1], ARG_EXIT) == 0)
return MSG_EXIT;
return MSG_ERROR;
}
static void
usage()
{
puts("usage:");
puts("\tTc [ARG]");
puts("\nwhere ARG is one of:");
puts("\t" ARG_NEWWIN "\tRequests a new window; default if ommited");
puts("\t" ARG_EXIT "\tRequests daemon termination; only successful if there are no open windows");
}
int
main(int argc, char *argv[])
{
TMessage msg = parse_args(argc, argv);
if (msg == MSG_ERROR) {
usage();
return EXIT_FAILURE;
}
int sock_fd = open_conn();
if (write(sock_fd, &msg, sizeof(msg)) < 0)
err("Failed to send data", EXIT_FAILURE);
if (recv(sock_fd, &msg, sizeof(msg), 0) < 0)
err("Failed to recv data", EXIT_FAILURE);
close(sock_fd);
return msg == MSG_OK ? EXIT_SUCCESS : EXIT_FAILURE;
}
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