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annotate util.c @ 15:3380c8fd9776

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author Guido Berhoerster <guido+pwm@berhoerster.name>
date Mon, 07 Aug 2017 19:11:56 +0200
parents a7e41e1a79c8
children a07665727c19
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Guido Berhoerster <guido+pwm@berhoerster.name>
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1 /*
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2 * Copyright (C) 2016 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 "compat.h"
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25
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26 #ifdef HAVE_ERR_H
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27 #include <err.h>
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28 #endif /* HAVE_ERR_H */
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29 #include <stdio.h>
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30 #include <string.h>
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31
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32 #include "util.h"
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33
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34 void *
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35 xmalloc(size_t size)
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36 {
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37 void *ptr;
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38
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39 ptr = malloc(size);
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40 if (ptr == NULL) {
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41 err(1, "malloc");
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42 }
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43
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44 return (ptr);
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45 }
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46
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47 void *
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48 xrealloc(void *ptr, size_t size)
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49 {
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50 ptr = realloc(ptr, size);
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51 if (ptr == NULL) {
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52 err(1, "realloc");
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53 }
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54
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55 return (ptr);
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56 }
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57
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58 char *
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59 xstrdup(const char *str)
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60 {
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61 char *new;
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62
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63 new = strdup(str);
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64 if (new == NULL) {
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65 err(1, "strdup");
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66 }
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67
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68 return (new);
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69 }
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70
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71 char *
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72 xasprintf(char **strp, const char *fmt, ...)
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73 {
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74 va_list args;
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75
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76 va_start(args, fmt);
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77 if (vasprintf(strp, fmt, args) < 0) {
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78 err(1, "vasprintf");
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79 }
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80 va_end(args);
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81
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82 return (*strp);
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83 }