From a4423189abc65a592301a7b161f5366bf6bfa501 Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@tele2.at>
Date: Sun, 28 Oct 2018 12:10:07 +0100
Subject: Initial import

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
---
 mksock.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 mksock.c

(limited to 'mksock.c')

diff --git a/mksock.c b/mksock.c
new file mode 100644
index 0000000..f274608
--- /dev/null
+++ b/mksock.c
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * Copyright (C) 2018 - David Oberhollenzer
+ *
+ * This program 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.
+ *
+ * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include "syslogd.h"
+
+int mksock(const char *path)
+{
+	struct sockaddr_un un;
+	const char *errmsg;
+	int fd;
+
+	fd = socket(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+	if (fd < 0) {
+		perror("socket");
+		return -1;
+	}
+
+	memset(&un, 0, sizeof(un));
+	un.sun_family = AF_UNIX;
+
+	strcpy(un.sun_path, path);
+
+	if (bind(fd, (struct sockaddr *)&un, sizeof(un))) {
+		errmsg ="bind";
+		goto fail_errno;
+	}
+
+	if (chmod(path, 0777)) {
+		errmsg = "chmod";
+		goto fail_errno;
+	}
+
+	return fd;
+fail_errno:
+	fprintf(stderr, "%s: %s: %s\n", path, errmsg, strerror(errno));
+	close(fd);
+	unlink(path);
+	return -1;
+}
-- 
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