strlcpy.c revision 7c2fbfb345896881c631598ee3852ce9ce33fb07
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2008 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* strlcpy implementation
*/
#define strlcpy ______strlcpy
#include <ast.h>
#undef strlcpy
#undef _def_map_ast
#include <ast_map.h>
#if _lib_strlcpy
NoN(strlcpy)
#else
/*
* copy at most n chars from t into s
* result 0 terminated if n>0
* strlen(t) returned
*/
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
extern size_t
strlcpy(register char* s, register const char* t, register size_t n)
{
const char* o = t;
if (n)
do
{
if (!--n)
{
*s = 0;
break;
}
} while (*s++ = *t++);
if (!n)
while (*t++);
return t - o - 1;
}
#endif