base/applications/network/finger/err.c

   1 /*-
   2  * Copyright (c) 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #if defined(LIBC_SCCS) && !defined(lint)
  35 static char sccsid[] = "@(#)err.c       8.1 (Berkeley) 6/4/93";
  36 #endif /* LIBC_SCCS and not lint */
  37
  38 #include "precomp.h"
  39
  40 extern char *__progname;                /* Program name, from crt0. */
  41
  42 void
  43 err(int eval, const char *fmt, ...)
  44 {
  45         va_list ap;
  46         va_start(ap, fmt);
  47         verr(eval, fmt, ap);
  48         va_end(ap);
  49 }
  50
  51 void
  52 verr(int eval, const char *fmt, va_list ap)
  53 {
  54         int sverrno;
  55
  56         sverrno = errno;
  57         (void)fprintf(stderr, "%s: ", __progname);
  58         if (fmt != NULL) {
  59                 (void)vfprintf(stderr, fmt, ap);
  60                 (void)fprintf(stderr, ": ");
  61         }
  62         (void)fprintf(stderr, "%s\n", strerror(sverrno));
  63         exit(eval);
  64 }
  65
  66 void
  67 errx(int eval, const char *fmt, ...)
  68 {
  69         va_list ap;
  70         va_start(ap, fmt);
  71         verrx(eval, fmt, ap);
  72         va_end(ap);
  73 }
  74
  75 void
  76 verrx(int eval, const char *fmt, va_list ap)
  77 {
  78         (void)fprintf(stderr, "%s: ", __progname);
  79         if (fmt != NULL)
  80                 (void)vfprintf(stderr, fmt, ap);
  81         (void)fprintf(stderr, "\n");
  82         exit(eval);
  83 }
  84
  85 void
  86 warn(const char *fmt, ...)
  87 {
  88         va_list ap;
  89         va_start(ap, fmt);
  90         vwarn(fmt, ap);
  91         va_end(ap);
  92 }
  93
  94 void
  95 vwarn(fmt, ap)
  96         const char *fmt;
  97         va_list ap;
  98 {
  99         int sverrno;
 100
 101         sverrno = errno;
 102         (void)fprintf(stderr, "%s: ", __progname);
 103         if (fmt != NULL) {
 104                 (void)vfprintf(stderr, fmt, ap);
 105                 (void)fprintf(stderr, ": ");
 106         }
 107         (void)fprintf(stderr, "%s\n", strerror(sverrno));
 108 }
 109
 110 void
 111 warnx(const char *fmt, ...)
 112 {
 113         va_list ap;
 114         va_start(ap, fmt);
 115         vwarnx(fmt, ap);
 116         va_end(ap);
 117 }
 118
 119 void
 120 vwarnx(fmt, ap)
 121         const char *fmt;
 122         va_list ap;
 123 {
 124         (void)fprintf(stderr, "%s: ", __progname);
 125         if (fmt != NULL)
 126                 (void)vfprintf(stderr, fmt, ap);
 127         (void)fprintf(stderr, "\n");
 128 }