usr/src/lib/libwrap/percent_m.c

   1 /*
   2  * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5  /*
   6   * Replace %m by system error message.
   7   *
   8   * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
   9   */
  10
  11 static char sccsid[] = "@(#) percent_m.c 1.1 94/12/28 17:42:37";
  12
  13 #include <stdio.h>
  14 #include <errno.h>
  15 #include <string.h>
  16
  17 extern int errno;
  18
  19 #include "mystdarg.h"
  20
  21 char   *percent_m(obuf, ibuf)
  22 char   *obuf;
  23 char   *ibuf;
  24 {
  25     char   *bp = obuf;
  26     char   *cp = ibuf;
  27
  28     while (*bp = *cp)
  29         if (*cp == '%' && cp[1] == 'm') {
  30             strcpy(bp, strerror(errno));
  31             bp += strlen(bp);
  32             cp += 2;
  33         } else {
  34             bp++, cp++;
  35         }
  36     return (obuf);
  37 }