_cpystr.c
1.14 KB
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <cpystr.h>
#include <string.h>
#include <errno.h>
size_t
_cpystr (char *dst, const char *src, size_t size)
{
size_t len = src ? strlen (src) : 0 ;
if (dst == NULL || size == 0)
{
return len;
}
if (len >= size)
{
len = size - 1;
}
memcpy (dst, src, len);
dst[len] = '\0';
return len;
}