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annotate extern/libcompat/src/strdup.c @ 948:21a91311c8ea

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cmake: switch back, GNU make is painful
author David Demelier <markand@malikania.fr>
date Sat, 16 Jan 2021 17:58:46 +0100
parents 243f9f51b0ff
children cf99df45cb84
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243f9f51b0ff irccd: import libcompat and utilities
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1 /*
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2 * strdup.c -- strdup implementation
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20 #include <stdlib.h>
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21 #include <string.h>
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22
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23 char *
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24 strdup(const char *src)
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25 {
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26 assert(src);
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27
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28 char *ret;
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29 size_t length;
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30
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31 length = strlen(src) + 1;
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32
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33 if (!(ret = malloc(length)))
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34 return NULL;
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35
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36 return memcpy(ret, src, length);
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37 }