96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/***************************************************************************
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* Copyright (C) 07/2007 by Olaf Rempel *
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* razzor@kopf-tisch.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; version 2 of the License *
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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 *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "logging.h"
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int unix_listen(const char *filename)
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{
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int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
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if (sockfd == -1) {
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log_print(LOG_ERROR, "unix_listen: socket()");
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return -1;
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}
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if (fcntl(sockfd, F_SETFD, FD_CLOEXEC) < 0) {
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log_print(LOG_WARN, "unix_listen(): fcntl(FD_CLOEXEC)");
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return -1;
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}
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struct sockaddr_un addr;
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addr.sun_family = AF_UNIX;
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strncpy(addr.sun_path, filename, sizeof(addr.sun_path));
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int len = sizeof(addr.sun_family) + strlen(addr.sun_path);
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if (unlink(addr.sun_path) == -1 && errno != ENOENT) {
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log_print(LOG_ERROR, "unix_listen: unlink()");
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return -1;
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}
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errno = 0;
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mode_t old_umask = umask(0077);
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int ret = bind(sockfd, (struct sockaddr *) &addr, len);
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umask(old_umask);
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if (ret == -1) {
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log_print(LOG_ERROR, "unix_listen: bind(%s)", filename);
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close(sockfd);
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return -1;
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}
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if (listen(sockfd, 5) == -1) {
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log_print(LOG_ERROR, "unix_listen: listen()");
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close(sockfd);
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return -1;
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}
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return sockfd;
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}
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int unix_connect(const char *filename)
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{
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int sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
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if (sockfd == -1) {
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log_print(LOG_ERROR, "unix_connect: socket()");
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return -1;
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}
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struct sockaddr_un addr;
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addr.sun_family = AF_UNIX;
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strncpy(addr.sun_path, filename, sizeof(addr.sun_path));
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int len = sizeof(addr.sun_family) + strlen(addr.sun_path);
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if (connect(sockfd, (struct sockaddr *)&addr, len) < 0) {
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log_print(LOG_ERROR, "unix_connect: connect(%s)", filename);
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close(sockfd);
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return -1;
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}
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return sockfd;
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}
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