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/* $OpenBSD: strndup.c,v 1.2 2015/08/31 02:53:57 guenther Exp $ */ |
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/* |
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* Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/types.h> |
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#include <stddef.h> |
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#include <stdlib.h> |
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#include <string.h> |
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char * |
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strndup(const char *str, size_t maxlen) |
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{ |
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char *copy; |
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size_t len; |
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len = strnlen(str, maxlen); |
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copy = malloc(len + 1); |
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if (copy != NULL) { |
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(void)memcpy(copy, str, len); |
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copy[len] = '\0'; |
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} |
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return copy; |
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} |
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DEF_WEAK(strndup); |