pathbin.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 *
* 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
/*
* Glenn Fowler
* AT&T Bell Laboratories
*
* return current PATH
*/
#include <ast.h>
char*
pathbin(void)
{
register char* bin;
static char* val;
if ((!(bin = getenv("PATH")) || !*bin) && !(bin = val))
{
if (!*(bin = astconf("PATH", NiL, NiL)) || !(bin = strdup(bin)))
bin = "/bin:/usr/bin:/usr/local/bin";
val = bin;
}
return bin;
}