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annotate compat/err.c @ 0:a7e41e1a79c8

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Initial revision
author Guido Berhoerster <guido+pwm@berhoerster.name>
date Thu, 19 Jan 2017 22:39:51 +0100
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Guido Berhoerster <guido+pwm@berhoerster.name>
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1 /*
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2 * Copyright (C) 2011 Guido Berhoerster <guido+pwm@berhoerster.name>
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3 *
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4 * Permission is hereby granted, free of charge, to any person obtaining
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5 * a copy of this software and associated documentation files (the
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6 * "Software"), to deal in the Software without restriction, including
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7 * without limitation the rights to use, copy, modify, merge, publish,
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8 * distribute, sublicense, and/or sell copies of the Software, and to
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9 * permit persons to whom the Software is furnished to do so, subject to
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10 * the following conditions:
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11 *
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12 * The above copyright notice and this permission notice shall be included
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13 * in all copies or substantial portions of the Software.
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14 *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 */
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23
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24 #include <stdlib.h>
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25 #include <stdio.h>
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26 #include <string.h>
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27 #include <errno.h>
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28
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29 #include "err.h"
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30 #include "../compat.h"
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31
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32 void
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33 err(int eval, const char *fmt, ...)
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34 {
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35 va_list args;
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36
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37 va_start(args, fmt);
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38 vwarn(fmt, args);
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39 va_end(args);
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40
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41 exit(eval);
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42 }
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43
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44 void
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45 errx(int eval, const char *fmt, ...)
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46 {
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47 va_list args;
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48
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49 va_start(args, fmt);
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50 vwarnx(fmt, args);
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51 va_end(args);
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52
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53 exit(eval);
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54 }
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55
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56 void
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57 warn(const char *fmt, ...)
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58 {
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59 va_list args;
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60
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61 va_start(args, fmt);
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62 vwarn(fmt, args);
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63 va_end(args);
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64 }
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65
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66 void
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67 warnx(const char *fmt, ...)
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68 {
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69 va_list args;
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70
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71 va_start(args, fmt);
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72 vwarnx(fmt, args);
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73 va_end(args);
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74 }
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75
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76 void
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77 verr(int eval, const char *fmt, va_list args)
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78 {
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79 vwarn(fmt, args);
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80
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81 exit(eval);
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82 }
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83
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84 void
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85 verrx(int eval, const char *fmt, va_list args)
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86 {
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87 vwarnx(fmt, args);
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88
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89 exit(eval);
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90 }
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91
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92 void
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93 vwarn(const char *fmt, va_list args)
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94 {
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95 int old_errno = errno;
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96
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97 fprintf(stderr, "%s: ", getprogname());
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98 if (fmt != NULL) {
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99 vfprintf(stderr, fmt, args);
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100 fprintf(stderr, ": ");
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101 }
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102 fprintf(stderr, "%s\n", strerror(old_errno));
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103 errno = old_errno;
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104 }
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105
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106 void
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107 vwarnx(const char *fmt, va_list args)
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108 {
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109 fprintf(stderr, "%s: ", getprogname());
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110 if (fmt != NULL) {
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111 vfprintf(stderr, fmt, args);
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112 }
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113 fputc('\n', stderr);
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114 }