first alpha version for syslog support

2026-03-23 23:26:30 +00:00 · 2010-12-29 01:23:15 +01:00
parent 1787cf1c21
commit 2c1eafd7a9
9 changed files with 409 additions and 107 deletions
--- a/log.c
+++ b/log.c
@@ -0,0 +1,167 @@
+/*
+ * log.c - Logging methods
+ * Copyright (C) 2ndQuadrant, 2010
+ *
+ * This module is a set of methods for logging (currently only syslog)
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "repmgr.h"
+
+#include <stdlib.h>
+
+#ifdef HAVE_SYSLOG
+#include <syslog.h>
+#include <stdarg.h>
+#endif
+
+#include "log.h"
+
+#define DEFAULT_IDENT "repmgr"
+#ifdef HAVE_SYSLOG
+#define DEFAULT_SYSLOG_FACILITY LOG_LOCAL0
+#endif
+
+static int detect_log_level(const char* level);
+static int detect_log_facility(const char* facility);
+
+int log_type = REPMGR_STDERR;
+int log_level = LOG_NOTICE;
+
+bool logger_init(const char* ident, const char* level, const char* facility)
+{
+
+	int l;
+	int f;
+
+#ifdef HAVE_SYSLOG
+	int syslog_facility = DEFAULT_SYSLOG_FACILITY;
+#endif
+printf("Logger init: detect stuff: %s, %s\n", level, facility);
+
+	if (!ident) {
+		ident = DEFAULT_IDENT;
+	}
+
+	if (level) {
+		l = detect_log_level(level);
+printf("Logger level: %d\n", l);
+
+		if (l > 0)
+			log_level = l;
+		else
+			stderr_log_warning(_("Cannot detect log level %s (use any of DEBUG, INFO, NOTICE, WARNING, ERR, ALERT, CRIT or EMERG)"), level);
+	}
+
+	if (facility) {
+		f = detect_log_facility(facility);
+printf("Logger facility: %d\n", f);
+		if (f == 0) {
+			/* No syslog requested, just stderr */
+			stderr_log_notice(_("Use stderr for logging"));
+			return true;
+		}
+		else if (f == -1) {
+			stderr_log_warning(_("Cannot detect log facility %s (use any of LOCAL0, LOCAL1, ..., LOCAL7, USER or STDERR)"), facility);
+		}
+#ifdef HAVE_SYSLOG
+		else {
+			syslog_facility = f;
+		}
+#endif
+	}
+
+#ifdef HAVE_SYSLOG
+
+	setlogmask (LOG_UPTO (log_level));
+	openlog (ident, LOG_CONS | LOG_PID | LOG_NDELAY, syslog_facility);
+
+	log_type = REPMGR_SYSLOG;
+	stderr_log_notice(_("Setup syslog (level: %s, facility: %s)"), level, facility);
+
+#endif
+
+	return true;
+
+}
+
+bool logger_shutdown(void)
+{
+
+#ifdef HAVE_SYSLOG
+	if (log_type == REPMGR_SYSLOG)
+		closelog();
+#endif
+
+	return true;
+}
+
+int detect_log_level(const char* level)
+{
+	if (!strcmp(level, "DEBUG"))
+		return LOG_DEBUG;
+	if (!strcmp(level, "INFO"))
+		return LOG_INFO;
+	if (!strcmp(level, "NOTICE"))
+		return LOG_NOTICE;
+	if (!strcmp(level, "WARNING"))
+		return LOG_WARNING;
+	if (!strcmp(level, "ERR"))
+		return LOG_ERR;
+	if (!strcmp(level, "ALERT"))
+		return LOG_ALERT;
+	if (!strcmp(level, "CRIT"))
+		return LOG_CRIT;
+	if (!strcmp(level, "EMERG"))
+		return LOG_EMERG;
+
+	return 0;
+}
+
+int detect_log_facility(const char* facility)
+{
+	int local = 0;
+	if (!strncmp(facility, "LOCAL", 5) && strlen(facility) == 6) {
+
+		local = atoi (&facility[5]);
+
+		if (local == 0)
+			return LOG_LOCAL0;
+		if (local == 1)
+			return LOG_LOCAL1;
+		if (local == 2)
+			return LOG_LOCAL2;
+		if (local == 3)
+			return LOG_LOCAL3;
+		if (local == 4)
+			return LOG_LOCAL4;
+		if (local == 5)
+			return LOG_LOCAL5;
+		if (local == 6)
+			return LOG_LOCAL6;
+		if (local == 7)
+			return LOG_LOCAL7;
+
+	}
+	else if (!strcmp(facility, "USER")) {
+		return LOG_USER;
+	}
+	else if (!strcmp(facility, "STDERR")) {
+		return 0;
+	}
+
+	return -1;
+}