/*
 * report() - calls syslog
 */

#include <stdarg.h>

#include <stdio.h>
#include <syslog.h>
#include <string.h>
#include <errno.h>

#include "report.h"

#ifndef LOG_NDELAY
#define LOG_NDELAY      0
#endif
#ifndef LOG_DAEMON
#define LOG_DAEMON      0
#endif
#ifndef LOG_BOOTP
#define LOG_BOOTP       LOG_DAEMON
#endif

extern int debug;
extern char *progname;

/*
 * This is initialized so you get stderr until you call
 *      report_init()
 */
static int stderr_only = 1;

void
report_init(int nolog)
{
        stderr_only = nolog;
#ifdef SYSLOG
        if (!stderr_only) {
                openlog(progname, LOG_PID | LOG_NDELAY, LOG_BOOTP);
        }
#endif
}

/*
 * This routine reports errors and such via stderr and syslog() if
 * appopriate.  It just helps avoid a lot of "#ifdef SYSLOG" constructs
 * from being scattered throughout the code.
 *
 * The syntax is identical to syslog(3), but %m is not considered special
 * for output to stderr (i.e. you'll see "%m" in the output. . .).  Also,
 * control strings should normally end with \n since newlines aren't
 * automatically generated for stderr output (whereas syslog strips out all
 * newlines and adds its own at the end).
 */

static char *levelnames[] = {
#ifdef LOG_SALERT
        "level(0): ",
        "alert(1): ",
        "alert(2): ",
        "emerg(3): ",
        "error(4): ",
        "crit(5):  ",
        "warn(6):  ",
        "note(7):  ",
        "info(8):  ",
        "debug(9): ",
        "level(?): "
#else
        "emerg(0): ",
        "alert(1): ",
        "crit(2):  ",
        "error(3): ",
        "warn(4):  ",
        "note(5):  ",
        "info(6):  ",
        "debug(7): ",
        "level(?): "
#endif
};
static int numlevels = sizeof(levelnames) / sizeof(levelnames[0]);


/*
 * Print a log message using syslog(3) and/or stderr.
 * The message passed in should not include a newline.
 */
void
report(int priority, const char *fmt,...)
{
        va_list ap;
        static char buf[128];

        if ((priority < 0) || (priority >= numlevels)) {
                priority = numlevels - 1;
        }
        va_start(ap, fmt);
        vsnprintf(buf, sizeof(buf), fmt, ap);
        va_end(ap);

        /*
         * Print the message
         */
        if (stderr_only || (debug > 2)) {
                fprintf(stderr, "%s: %s %s\n",
                                progname, levelnames[priority], buf);
        }
#ifdef SYSLOG
        if (!stderr_only)
                syslog((priority | LOG_BOOTP), "%s", buf);
#endif
}



/*
 * Return pointer to static string which gives full filesystem error message.
 */
const char *
get_errmsg(void)
{
        return strerror(errno);
}

/*
 * Local Variables:
 * tab-width: 4
 * c-indent-level: 4
 * c-argdecl-indent: 4
 * c-continued-statement-offset: 4
 * c-continued-brace-offset: -4
 * c-label-offset: -4
 * c-brace-offset: 0
 * End:
 */