GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/string/strlcpy.c Lines: 8 8 100.0 %
Date: 2017-11-07 Branches: 12 12 100.0 %

Line Branch Exec Source
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/*	$OpenBSD: strlcpy.c,v 1.15 2016/10/16 17:37:39 dtucker Exp $	*/
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/*
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 * Copyright (c) 1998, 2015 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 <string.h>
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/*
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 * Copy string src to buffer dst of size dsize.  At most dsize-1
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 * chars will be copied.  Always NUL terminates (unless dsize == 0).
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 * Returns strlen(src); if retval >= dsize, truncation occurred.
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 */
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size_t
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strlcpy(char *dst, const char *src, size_t dsize)
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{
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	const char *osrc = src;
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	size_t nleft = dsize;
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	/* Copy as many bytes as will fit. */
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	if (nleft != 0) {
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		while (--nleft != 0) {
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			if ((*dst++ = *src++) == '\0')
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				break;
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		}
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	}
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	/* Not enough room in dst, add NUL and traverse rest of src. */
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	if (nleft == 0) {
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		if (dsize != 0)
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			*dst = '\0';		/* NUL-terminate dst */
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		while (*src++)
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			;
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	}
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	return(src - osrc - 1);	/* count does not include NUL */
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}
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DEF_WEAK(strlcpy);