new config option, stdout/stdin closed

Now stdin and stdout get closed. Additionally stderr gets closed and
reopened to the new config option „logfile“ if specified

config.c

@@ -120,6 +120,8 @@ parse_config(const char *config_file, t_configuration_options *options)
 			strncpy (options->pg_bindir, value, MAXLEN);
 		else if (strcmp(name, "pg_ctl_options") == 0)
 			strncpy (options->pgctl_options, value, MAXLEN);
+		else if (strcmp(name, "logfile") == 0)
+			strncpy(options->logfile, value, MAXLEN);
 		else
 			log_warning(_("%s/%s: Unknown name/value pair!\n"), name, value);
 	}

config.h

@@ -42,9 +42,10 @@ typedef struct
 	int  reconnect_intvl;
 	char pg_bindir[MAXLEN];
 	char pgctl_options[MAXLEN];
+	char logfile[MAXLEN];
 } t_configuration_options;
 
-#define T_CONFIGURATION_OPTIONS_INITIALIZER { "", -1, "", MANUAL_FAILOVER, -1, "", "", "", "", "", "", "", -1, -1, -1, "", "" }
+#define T_CONFIGURATION_OPTIONS_INITIALIZER { "", -1, "", MANUAL_FAILOVER, -1, "", "", "", "", "", "", "", -1, -1, -1, "", "", "" }
 
 void parse_config(const char *config_file, t_configuration_options *options);
 void parse_line(char *buff, char *name, char *value);

log.c

@@ -68,7 +68,7 @@ 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)
+bool logger_init(t_configuration_options *opts, const char* ident, const char* level, const char* facility)
 {
 
 	int l;
@@ -140,6 +140,14 @@ bool logger_init(const char* ident, const char* level, const char* facility)
 
 #endif
 
+	fclose(stdin);
+	fclose(stdout);
+
+	if (*opts->logfile)
+	{
+		freopen(opts->logfile, "a", stderr);
+	}
+
 	return true;
 
 }

log.h

@@ -114,7 +114,7 @@ void stderr_log_with_level(const char *level_name, int level, const char *fmt, .
 
 /* Logger initialisation and shutdown */
 bool logger_shutdown(void);
-bool logger_init(const char* ident, const char* level, const char* facility);
+bool logger_init(t_configuration_options *opts, const char* ident, const char* level, const char* facility);
 void logger_min_verbose(int minimum);
 
 extern int log_type;

repmgr.c

@@ -322,7 +322,7 @@ main(int argc, char **argv)
 	 * at, but it often requires detailed logging to troubleshoot
 	 * problems.
 	 */
-	logger_init(progname, options.loglevel, options.logfacility);
+	logger_init(&options, progname, options.loglevel, options.logfacility);
 	if (runtime_options.verbose)
 		logger_min_verbose(LOG_INFO);
 

repmgr.conf.sample

@@ -42,3 +42,8 @@ pg_bindir=/usr/bin/
 # you may add command line arguments for pg_ctl
 #
 # pg_ctl_options='-s'
+
+#
+# redirect stderr to a logfile
+#
+# logfile='/var/log/repmgr.log'

repmgrd.c

@@ -272,7 +272,7 @@ main(int argc, char **argv)
 		exit(ERR_BAD_CONFIG);
 	}
 
-	logger_init(progname, local_options.loglevel, local_options.logfacility);
+	logger_init(&local_options, progname, local_options.loglevel, local_options.logfacility);
 	if (verbose)
 		logger_min_verbose(LOG_INFO);