112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
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/* Copyright (c) 2012, Bastien Dejean
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <poll.h>
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#include <sys/un.h>
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#include <unistd.h>
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#include "helpers.h"
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#include "common.h"
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int main(int argc, char *argv[])
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{
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int sock_fd;
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struct sockaddr_un sock_address;
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char msg[BUFSIZ], rsp[BUFSIZ];
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if (argc < 2) {
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err("No arguments given.\n");
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}
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sock_address.sun_family = AF_UNIX;
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char *sp;
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if ((sock_fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
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err("Failed to create the socket.\n");
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}
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sp = getenv(SOCKET_ENV_VAR);
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if (sp != NULL) {
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snprintf(sock_address.sun_path, sizeof(sock_address.sun_path), "%s", sp);
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} else {
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char *host = NULL;
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int dn = 0, sn = 0;
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if (xcb_parse_display(NULL, &host, &dn, &sn) != 0) {
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snprintf(sock_address.sun_path, sizeof(sock_address.sun_path), SOCKET_PATH_TPL, host, dn, sn);
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}
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free(host);
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}
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if (connect(sock_fd, (struct sockaddr *) &sock_address, sizeof(sock_address)) == -1) {
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err("Failed to connect to the socket.\n");
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}
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argc--, argv++;
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int msg_len = 0;
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for (int offset = 0, rem = sizeof(msg), n = 0; argc > 0 && rem > 0; offset += n, rem -= n, argc--, argv++) {
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n = snprintf(msg + offset, rem, "%s%c", *argv, 0);
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msg_len += n;
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}
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if (send(sock_fd, msg, msg_len, 0) == -1) {
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err("Failed to send the data.\n");
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}
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int ret = EXIT_SUCCESS, nb;
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struct pollfd fds[] = {
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{sock_fd, POLLIN, 0},
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{STDOUT_FILENO, POLLHUP, 0},
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};
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while (poll(fds, 2, -1) > 0) {
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if (fds[0].revents & POLLIN) {
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if ((nb = recv(sock_fd, rsp, sizeof(rsp)-1, 0)) > 0) {
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rsp[nb] = '\0';
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if (rsp[0] == FAILURE_MESSAGE[0]) {
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ret = EXIT_FAILURE;
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fprintf(stderr, "%s", rsp + 1);
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fflush(stderr);
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} else {
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fprintf(stdout, "%s", rsp);
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fflush(stdout);
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}
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} else {
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break;
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}
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}
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if (fds[1].revents & (POLLERR | POLLHUP)) {
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break;
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}
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}
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close(sock_fd);
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return ret;
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}
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