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339
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1 /*
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2 util.c
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3 Copyright © 2009 William Astle
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4
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5 This file is part of LWLINK.
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6
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7 LWLINK is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19 */
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20
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21 /*
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22 Utility functions
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23 */
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24
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25 #define __util_c_seen__
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26 #include <config.h>
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27
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28 #include <malloc.h>
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31 #include <string.h>
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32
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33 #include "util.h"
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34
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35 void *lw_malloc(int 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)
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41 {
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42 // bail out; memory allocation error
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43 fprintf(stderr, "lw_malloc(): Memory allocation error\n");
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44 exit(1);
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45 }
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46 return ptr;
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47 }
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48
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49 void *lw_realloc(void *optr, int size)
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50 {
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51 void *ptr;
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52
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53 if (size == 0)
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54 {
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55 lw_free(optr);
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56 return;
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57 }
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58
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59 ptr = realloc(optr, size);
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60 if (!ptr)
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61 {
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62 fprintf(stderr, "lw_realloc(): memory allocation error\n");
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63 exit(1);
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64 }
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65 }
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66
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67 void lw_free(void *ptr)
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68 {
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69 if (ptr)
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70 free(ptr);
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71 }
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72
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73 char *lw_strdup(const char *s)
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74 {
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75 char *d;
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76
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77 if (!s)
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78 return NULL;
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79
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80 d = strdup(s);
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81 if (!d)
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82 {
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83 fprintf(stderr, "lw_strdup(): memory allocation error\n");
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84 exit(1);
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85 }
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86
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87 return d;
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88 }
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