/src/unbound/compat/strlcpy.c

Source (jump to first uncovered line)
/* from openssh 4.3p2 compat/strlcpy.c */
/*
 * Copyright (c) 1998 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.
 */

/* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */

#include <config.h>
#ifndef HAVE_STRLCPY

#include <sys/types.h>
#include <string.h>

/*
 * Copy src to string dst of size siz.  At most siz-1 characters
 * will be copied.  Always NUL terminates (unless siz == 0).
 * Returns strlen(src); if retval >= siz, truncation occurred.
 */
size_t
strlcpy(char *dst, const char *src, size_t siz)
{
  char *d = dst;
  const char *s = src;
  size_t n = siz;

  /* Copy as many bytes as will fit */
  if (n != 0 && --n != 0) {
    do {
      if ((*d++ = *s++) == 0)
        break;
    } while (--n != 0);
  }

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

  return(s - src - 1);  /* count does not include NUL */
}

#endif /* !HAVE_STRLCPY */

Line	Count	Source (jump to first uncovered line)
1		/* from openssh 4.3p2 compat/strlcpy.c */
2		/*
3		* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
4		*
5		* Permission to use, copy, modify, and distribute this software for any
6		* purpose with or without fee is hereby granted, provided that the above
7		* copyright notice and this permission notice appear in all copies.
8		*
9		* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10		* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11		* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12		* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13		* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14		* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15		* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16		*/
17
18		/* OPENBSD ORIGINAL: lib/libc/string/strlcpy.c */
19
20		#include <config.h>
21		#ifndef HAVE_STRLCPY
22
23		#include <sys/types.h>
24		#include <string.h>
25
26		/*
27		* Copy src to string dst of size siz. At most siz-1 characters
28		* will be copied. Always NUL terminates (unless siz == 0).
29		* Returns strlen(src); if retval >= siz, truncation occurred.
30		*/
31		size_t
32		strlcpy(char dst, const char src, size_t siz)
33	2.93k	{
34	2.93k	char *d = dst;
35	2.93k	const char *s = src;
36	2.93k	size_t n = siz;
37
38		/* Copy as many bytes as will fit */
39	2.93k	if (n != 0 && --n != 0) {
40	22.2k	do {
41	22.2k	if ((d++ = s++) == 0)
42	2.91k	break;
43	22.2k	} while (--n != 0);
44	2.93k	}
45
46		/* Not enough room in dst, add NUL and traverse rest of src */
47	2.93k	if (n == 0) {
48	24	if (siz != 0)
49	24	d = '\0'; / NUL-terminate dst */
50	54.4k	while (*s++)
51	54.4k	;
52	24	}
53
54	2.93k	return(s - src - 1); /* count does not include NUL */
55	2.93k	}
56
57		#endif /* !HAVE_STRLCPY */

Coverage Report

Created: 2025-08-29 06:30