error.c

   1 /* $OpenBSD: error.c,v 1.1 2012/07/10 10:28:05 nicm Exp $ */
   2
   3 /*
   4  * Copyright (c) 2012 Nicholas Marriott <nicm@openbsd.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <err.h>
  22 #include <errno.h>
  23 #include <stdio.h>
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #include "cu.h"
  29
  30 /*
  31  * Once we've configured termios, we need to use \r\n to end lines, so use our
  32  * own versions of warn/warnx/err/errx.
  33  */
  34
  35 extern char     *__progname;
  36
  37 void
  38 cu_err(int eval, const char *fmt, ...)
  39 {
  40         va_list ap;
  41
  42         restore_termios();
  43
  44         va_start(ap, fmt);
  45         verr(eval, fmt, ap);
  46 }
  47
  48 void
  49 cu_errx(int eval, const char *fmt, ...)
  50 {
  51         va_list ap;
  52
  53         restore_termios();
  54
  55         va_start(ap, fmt);
  56         verrx(eval, fmt, ap);
  57 }
  58
  59 void
  60 cu_warn(const char *fmt, ...)
  61 {
  62         va_list ap;
  63
  64         fprintf(stderr, "%s: ", __progname);
  65
  66         va_start(ap, fmt);
  67         vfprintf(stderr, fmt, ap);
  68         va_end(ap);
  69
  70         fprintf(stderr, ": %s\r\n", strerror(errno));
  71 }
  72
  73 void
  74 cu_warnx(const char *fmt, ...)
  75 {
  76         va_list ap;
  77
  78         fprintf(stderr, "%s: ", __progname);
  79
  80         va_start(ap, fmt);
  81         vfprintf(stderr, fmt, ap);
  82         va_end(ap);
  83
  84         fprintf(stderr, "\r\n");
  85 }