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/*
* Copyright (c) 1999 Sendmail, Inc. and its suppliers.
* All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*
*/
#ifndef lint
static char id[] = "@(#)$Id: strl.c,v 8.5.14.1 2000/05/12 20:46:17 ca Exp $";
#endif /* ! lint */
#include <sendmail.h>
#if !HASSTRL
/*
** strlcpy -- copy string obeying length and '\0' terminate it
**
** terminates with '\0' if len > 0
**
** Parameters:
** dst -- "destination" string.
** src -- "from" string.
** len -- length of space available in "destination" string.
**
** Returns:
** total length of the string tried to create (=strlen(src))
** if this is greater than len then an overflow would have
** occurred.
*/
size_t
strlcpy(dst, src, len)
register char *dst;
register const char *src;
size_t len;
{
register size_t i;
if (len-- <= 0)
return strlen(src);
for (i = 0; i < len && (dst[i] = src[i]) != 0; i++)
continue;
dst[i] = '\0';
if (src[i] == '\0')
return i;
else
return i + strlen(src + i);
}
/*
** strlcat -- catenate strings obeying length and '\0' terminate it
**
** strlcat will append at most len - strlen(dst) - 1 chars.
** terminates with '\0' if len > 0
**
** Parameters:
** dst -- "destination" string.
** src -- "from" string.
** len -- max. length of "destination" string.
**
** Returns:
** total length of the string tried to create
** (= initial length of dst + length of src)
** if this is greater than len then an overflow would have
** occurred.
*/
size_t
strlcat(dst, src, len)
register char *dst;
register const char *src;
size_t len;
{
register size_t i, j, o;
o = strlen(dst);
if (len < o + 1)
return o + strlen(src);
len -= o + 1;
for (i = 0, j = o; i < len && (dst[j] = src[i]) != 0; i++, j++)
continue;
dst[j] = '\0';
if (src[i] == '\0')
return j;
else
return j + strlen(src + i);
}
#endif /* !HASSTRL */
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