strlcat.c revision 3e14f97f673e8a630f076077de35afdd43dc1587
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2010 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 *
* (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
/*
* strlcat implementation
*/
#define strlcat ______strlcat
#include <ast.h>
#include <ast_map.h>
#if _lib_strlcat
#else
/*
* append t onto s limiting total size of s to n
* s 0 terminated if n>0
* min(n,strlen(s))+strlen(t) returned
*/
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
extern size_t
{
register size_t m;
const char* o = t;
if (m = n)
{
while (n && *s)
{
n--;
s++;
}
m -= n;
if (n)
do
{
if (!--n)
{
*s = 0;
break;
}
} while (*s++ = *t++);
else
*s = 0;
}
if (!n)
while (*t++);
return (t - o) + m - 1;
}
#endif