Mercurial > code
changeset 77:e48757f916ae
Add port of strndup
author | David Demelier <markand@malikania.fr> |
---|---|
date | Mon, 14 Nov 2011 18:52:06 +0100 |
parents | 4c5f69f5f409 |
children | ad60e5ebd92c |
files | port/strndup.c |
diffstat | 1 files changed, 36 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/port/strndup.c Mon Nov 14 18:52:06 2011 +0100 @@ -0,0 +1,36 @@ +/* + * strndup.c -- duplicate a string + * + * Copyright (c) 2011, David Demelier <markand@malikania.fr> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +char * +strndup(const char *src, size_t len) +{ + size_t tocopy; + char *dst; + + for (tocopy = 0; tocopy < len && src[tocopy] != '\0'; ++tocopy) + continue; + + if ((dst = calloc(tocopy + 1, 1)) != NULL) + strncpy(dst, src, tocopy); + + return dst; +}