compat_err.c

   1 #include "config.h"
   2
   3 #if HAVE_ERR
   4
   5 int dummy;
   6
   7 #else
   8
   9 /* $Id: compat_err.c,v 1.1 2015/10/11 21:12:54 schwarze Exp $ */
  10 /*
  11  * Copyright (c) 1993
  12  *      The Regents of the University of California.  All rights reserved.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in the
  21  *    documentation and/or other materials provided with the distribution.
  22  * 3. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include <err.h>
  40 #include <errno.h>
  41 #include <stdarg.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45
  46 extern char *__progname;
  47
  48 static void vwarni(const char *, va_list);
  49 static void vwarnxi(const char *, va_list);
  50
  51 static void
  52 vwarnxi(const char *fmt, va_list ap)
  53 {
  54         fprintf(stderr, "%s: ", __progname);
  55         if (fmt != NULL)
  56                 vfprintf(stderr, fmt, ap);
  57 }
  58
  59 static void
  60 vwarni(const char *fmt, va_list ap)
  61 {
  62         int sverrno;
  63
  64         sverrno = errno;
  65         vwarnxi(fmt, ap);
  66         if (fmt != NULL)
  67                 fputs(": ", stderr);
  68         fprintf(stderr, "%s\n", strerror(sverrno));
  69 }
  70
  71 void
  72 err(int eval, const char *fmt, ...)
  73 {
  74         va_list ap;
  75
  76         va_start(ap, fmt);
  77         vwarni(fmt, ap);
  78         va_end(ap);
  79         exit(eval);
  80 }
  81
  82 void
  83 warn(const char *fmt, ...)
  84 {
  85         va_list ap;
  86
  87         va_start(ap, fmt);
  88         vwarni(fmt, ap);
  89         va_end(ap);
  90 }
  91
  92 void
  93 warnx(const char *fmt, ...)
  94 {
  95         va_list ap;
  96
  97         va_start(ap, fmt);
  98         vwarnxi(fmt, ap);
  99         va_end(ap);
 100         fputc('\n', stderr);
 101 }
 102
 103 #endif