/*      $NetBSD: percent_m.c,v 1.5 2018/01/23 21:06:26 sevan Exp $      */

/*
 * Replace %m by system error message.
 *
 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
 */

#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#) percent_m.c 1.1 94/12/28 17:42:37";
#else
__RCSID("$NetBSD: percent_m.c,v 1.5 2018/01/23 21:06:26 sevan Exp $");
#endif
#endif

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

#ifndef SYS_ERRLIST_DEFINED
extern char *sys_errlist[];
extern int sys_nerr;
#endif

#include "mystdarg.h"
#include "percent_m.h"

char *percent_m(char *obuf, const char *ibuf)
{
   char   *bp = obuf;
   const char   *cp = ibuf;

   while ((*bp = *cp) != '\0')
       if (*cp == '%' && cp[1] == 'm') {
           strcpy(bp, strerror(errno));
           bp += strlen(bp);
           cp += 2;
       } else {
           bp++, cp++;
       }
   return (obuf);
}