usr.sbin/tcpdchk/percent_m.c

   1 /*      $NetBSD: percent_m.c,v 1.3 1998/05/09 17:22:09 kleink Exp $     */
   2
   3  /*
   4   * Replace %m by system error message.
   5   *
   6   * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
   7   */
   8
   9 #include <sys/cdefs.h>
  10 #ifndef lint
  11 #if 0
  12 static char sccsid[] = "@(#) percent_m.c 1.1 94/12/28 17:42:37";
  13 #else
  14 __RCSID("$NetBSD: percent_m.c,v 1.3 1998/05/09 17:22:09 kleink Exp $");
  15 #endif
  16 #endif
  17
  18 #include <stdio.h>
  19 #include <errno.h>
  20 #include <string.h>
  21
  22 #ifndef SYS_ERRLIST_DEFINED
  23 extern char *sys_errlist[];
  24 extern int sys_nerr;
  25 #endif
  26
  27 #include "mystdarg.h"
  28 #include "percent_m.h"
  29
  30 char   *percent_m(obuf, ibuf)
  31 char   *obuf;
  32 const char   *ibuf;
  33 {
  34     char   *bp = obuf;
  35     const char   *cp = ibuf;
  36
  37     while ((*bp = *cp) != '\0')
  38         if (*cp == '%' && cp[1] == 'm') {
  39             strcpy(bp, strerror(errno));
  40             bp += strlen(bp);
  41             cp += 2;
  42         } else {
  43             bp++, cp++;
  44         }
  45     return (obuf);
  46 }