/** @file log.c
 * @brief Helpers for logging
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */

#include <assert.h>
#include <syslog.h>

#include "faux/str.h"
#include "faux/log.h"

static struct {
	const char *name;
	int facility;
} log_names[] = {
       { "local0", LOG_LOCAL0 },
       { "local1", LOG_LOCAL1 },
       { "local2", LOG_LOCAL2 },
       { "local3", LOG_LOCAL3 },
       { "local4", LOG_LOCAL4 },
       { "local5", LOG_LOCAL5 },
       { "local6", LOG_LOCAL6 },
       { "local7", LOG_LOCAL7 },
       { "auth", LOG_AUTH },
#ifdef LOG_AUTHPRIV
       { "authpriv", LOG_AUTHPRIV },
#endif
       { "cron", LOG_CRON },
       { "daemon", LOG_DAEMON },
#ifdef LOG_FTP
       { "ftp", LOG_FTP },
#endif
       { "kern", LOG_KERN },
       { "lpr", LOG_LPR },
       { "mail", LOG_MAIL },
       { "news", LOG_NEWS },
       { "syslog", LOG_SYSLOG },
       { "user", LOG_USER },
       { "uucp", LOG_UUCP },
       { NULL, 0 }, // end of list
};

/** @brief Parses syslog facility string and returns the facility id.
 *
 * Gets syslog facility string, parse it and finds out the facility
 * id in digital form. Usefull config or command line options parsing.
 *
 * @param [in] str Facility string.
 * @param [out] facility Facility in digital form.
 * @returns 0 - success, < 0 - parsing error
 */
int faux_log_facility(const char *str, int *facility) {

	int i;
	assert(facility);
	assert(str);
	if (!str || !facility)
		return -1;
	for (i = 0; log_names[i].name; i++) {
		if (faux_str_casecmp(str, log_names[i].name) == 0) {
			*facility = log_names[i].facility;
			return 0;
		}
	}
	return -1;
}