135 lines
3.4 KiB
C
135 lines
3.4 KiB
C
/*
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* awesome-client.c - awesome client, communicate with socket
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*
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* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
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* Copyright © 2007 daniel@brinkers.de
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include "common/socket.h"
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#include "common/version.h"
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#include "common/util.h"
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/* GNU/Hurd workaround */
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#ifndef MSG_NOSIGNAL
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#define MSG_NOSIGNAL 0
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#endif
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static int
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send_msg(char *msg, ssize_t msg_len)
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{
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struct sockaddr_un *addr;
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int csfd, ret_value = EXIT_SUCCESS;
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csfd = get_client_socket();
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addr = get_client_addr(getenv("DISPLAY"));
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if(!addr || csfd < 0)
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return EXIT_FAILURE;
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if(sendto(csfd, msg, msg_len, MSG_NOSIGNAL,
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(const struct sockaddr *) addr, sizeof(struct sockaddr_un)) == -1)
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{
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switch (errno)
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{
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case ENOENT:
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warn("can't write to %s\n", addr->sun_path);
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break;
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default:
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warn("error sending datagram: %s\n", strerror(errno));
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}
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ret_value = errno;
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}
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close(csfd);
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p_delete(&addr);
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return ret_value;
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}
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/** Print help and exit(2) with given exit_code.
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*/
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static void __attribute__ ((noreturn))
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exit_help(int exit_code)
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{
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FILE *outfile = (exit_code == EXIT_SUCCESS) ? stdout : stderr;
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fprintf(outfile, "Usage: awesome-client [--version|--help]\n"
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"In normal operation, give no parameters and issue commands "
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"on standard input.\n");
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exit(exit_code);
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}
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int
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main(int argc, char *argv[])
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{
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char buf[1024], *msg;
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int ret_value = EXIT_SUCCESS;
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ssize_t len, msg_len = 1;
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if (argc < 2)
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{
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/* no args to parse, nothing to do */
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}
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else if (argc == 2)
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{
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if(!a_strcmp("-v", argv[1]) || !a_strcmp("--version", argv[1]))
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eprint_version("awesome-client");
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else if(!a_strcmp("-h", argv[1]) || !a_strcmp("--help", argv[1]))
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exit_help(EXIT_SUCCESS);
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}
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else
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{
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exit_help(EXIT_SUCCESS);
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}
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msg = p_new(char, 1);
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while(fgets(buf, sizeof(buf), stdin))
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{
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len = a_strlen(buf);
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if (len < 2 && msg_len > 1)
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{
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ret_value = send_msg(msg, msg_len);
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p_delete(&msg);
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if (ret_value != EXIT_SUCCESS)
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return ret_value;
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msg = p_new(char, 1);
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msg_len = 1;
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}
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else if (len > 1)
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{
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msg_len += len;
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p_realloc(&msg, msg_len);
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a_strncat(msg, msg_len, buf, len);
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}
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}
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if (msg_len > 1)
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ret_value = send_msg(msg, msg_len);
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p_delete(&msg);
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return ret_value;
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}
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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