libdarwin/err.c

   1 /*
   2  * Copyright (c) 2018 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 #include "internal.h"
  24
  25 #pragma mark Utilities
  26 static void
  27 _print_preamble(FILE *fp, const char *fmt, va_list ap)
  28 {
  29         fprintf(fp, "%s: ", getprogname());
  30         vfprintf(fp, fmt, ap);
  31 }
  32
  33 #pragma mark API
  34 void
  35 err_np(errno_t code, const char *fmt, ...)
  36 {
  37         va_list ap;
  38
  39         va_start(ap, fmt);
  40         verr_np(code, fmt, ap);
  41         va_end(ap);
  42 }
  43
  44 void
  45 errc_np(int eval, errno_t code, const char *fmt, ...)
  46 {
  47         va_list ap;
  48
  49         va_start(ap, fmt);
  50         verrc_np(eval, code, fmt, ap);
  51         va_end(ap);
  52 }
  53
  54 void
  55 warn_np(errno_t code, const char *fmt, ...)
  56 {
  57         va_list ap;
  58
  59         va_start(ap, fmt);
  60         vwarn_np(code, fmt, ap);
  61         va_end(ap);
  62 }
  63
  64 void
  65 verr_np(errno_t code, const char *fmt, va_list ap)
  66 {
  67         _print_preamble(stderr, fmt, ap);
  68         fprintf(stderr, ": %s\n", strerror_np(code));
  69         exit(sysexit_np(code));
  70 }
  71
  72 void
  73 verrc_np(int eval, errno_t code, const char *fmt, va_list ap)
  74 {
  75         _print_preamble(stderr, fmt, ap);
  76         fprintf(stderr, ": %s\n", strerror_np(code));
  77         exit(eval);
  78 }
  79
  80 void
  81 vwarn_np(errno_t code, const char *fmt, va_list ap)
  82 {
  83         _print_preamble(stderr, fmt, ap);
  84         fprintf(stderr, ": %s\n", strerror_np(code));
  85 }