/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2011 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
/*
* basename(3) implementation
*/
#include <ast_std.h>
#if defined(__EXPORT__)
#define extern __EXPORT__
#endif
extern char *basename(register char *pathname)
{
register char *first, *last;
for(first=last=pathname; *last; last++);
/* back over trailing '/' */
if(last>first)
while(*--last=='/' && last > first);
if(last==first && *last=='/')
{
/* all '/' or "" */
if(*first=='/')
if(*++last=='/') /* keep leading // */
last++;
}
else
{
for(first=last++;first>pathname && *first!='/';first--);
if(*first=='/')
first++;
}
*last = 0;
return(first);
}