1 files changed, 69 insertions, 0 deletions
diff --git a/syslogd/logfile.c b/syslogd/logfile.c
new file mode 100644
index 0000000..a59f7e7
--- /dev/null
+++ b/syslogd/logfile.c
@@ -0,0 +1,69 @@
+/* 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 <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+#include "logfile.h"
+
+
+logfile_t *logfile_create(const char *name)
+{
+	logfile_t *file;
+
+	file = calloc(1, sizeof(*file) + strlen(name) + 1);
+	if (file == NULL) {
+		perror("calloc");
+		return NULL;
+	}
+
+	strcpy(file->name, name);
+
+	file->fd = open(file->name, O_WRONLY | O_CREAT, 0640);
+	if (file->fd < 0)
+		goto fail;
+
+	if (lseek(file->fd, 0, SEEK_END))
+		goto fail;
+
+	return file;
+fail:
+	perror(file->name);
+	free(file);
+	return NULL;
+}
+
+void logfile_destroy(logfile_t *file)
+{
+	close(file->fd);
+	free(file);
+}
+
+void logfile_write(logfile_t *file, const char *format, ...)
+{
+	va_list ap;
+
+	va_start(ap, format);
+	vdprintf(file->fd, format, ap);
+	va_end(ap);
+
+	fsync(file->fd);
+}