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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/string/strlcpy.c	Lines:	5	8	62.5 %
Date:	2017-11-13	Branches:	5	12	41.7 %


/*	$OpenBSD: strlcpy.c,v 1.15 2016/10/16 17:37:39 dtucker Exp $	*/

/*
 * Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * Permission to use, copy, modify, and 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 <sys/types.h>
#include <string.h>

/*
 * Copy string src to buffer dst of size dsize.  At most dsize-1
 * chars will be copied.  Always NUL terminates (unless dsize == 0).
 * Returns strlen(src); if retval >= dsize, truncation occurred.
 */
size_t
strlcpy(char *dst, const char *src, size_t dsize)
{
	const char *osrc = src;
	size_t nleft = dsize;

	/* Copy as many bytes as will fit. */
	if (nleft != 0) {
		while (--nleft != 0) {
			if ((*dst++ = *src++) == '\0')
				break;
		}
	}

	/* Not enough room in dst, add NUL and traverse rest of src. */
	if (nleft == 0) {
		if (dsize != 0)
			*dst = '\0';		/* NUL-terminate dst */
		while (*src++)
			;
	}

	return(src - osrc - 1);	/* count does not include NUL */
}
DEF_WEAK(strlcpy);


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: strlcpy.c,v 1.15 2016/10/16 17:37:39 dtucker Exp $ */
2
3			/*
4			* Copyright (c) 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <sys/types.h>
20			#include <string.h>
21
22			/*
23			* Copy string src to buffer dst of size dsize. At most dsize-1
24			* chars will be copied. Always NUL terminates (unless dsize == 0).
25			* Returns strlen(src); if retval >= dsize, truncation occurred.
26			*/
27			size_t
28			strlcpy(char dst, const char src, size_t dsize)
29			{
30			const char *osrc = src;
31			size_t nleft = dsize;
32
33			/* Copy as many bytes as will fit. */
34	✓✗	30	if (nleft != 0) {
35	✓✗	336	while (--nleft != 0) {
36	✓✓	168	if ((dst++ = src++) == '\0')
37			break;
38			}
39			}
40
41			/* Not enough room in dst, add NUL and traverse rest of src. */
42	✗✓	15	if (nleft == 0) {
43			if (dsize != 0)
44			dst = '\0'; / NUL-terminate dst */
45			while (*src++)
46			;
47			}
48
49		15	return(src - osrc - 1); /* count does not include NUL */
50			}
51			DEF_WEAK(strlcpy);