xref: /netbsd/usr.sbin/tcpdchk/percent_m.c (revision 6550d01e)
1 /*	$NetBSD: percent_m.c,v 1.4 2000/01/21 17:08:39 mycroft 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 1.4 2000/01/21 17:08:39 mycroft 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 }
47