148 lines
4.6 KiB
C
148 lines
4.6 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these librararies and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: dirname.c /main/3 1995/11/01 19:05:19 rswiston $ */
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/***************************************************************
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* *
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* AT&T - PROPRIETARY *
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* *
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* THIS IS PROPRIETARY SOURCE CODE LICENSED BY *
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* AT&T CORP. *
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* *
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* Copyright (c) 1995 AT&T Corp. *
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* All Rights Reserved *
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* *
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* This software is licensed by AT&T Corp. *
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* under the terms and conditions of the license in *
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* http://www.research.att.com/orgs/ssr/book/reuse *
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* *
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* This software was created by the *
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* Software Engineering Research Department *
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* AT&T Bell Laboratories *
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* *
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* For further information contact *
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* gsf@research.att.com *
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* *
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***************************************************************/
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/* : : generated by proto : : */
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#if !defined(__PROTO__)
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#if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
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#if defined(__cplusplus)
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#define __MANGLE__ "C"
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#else
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#define __MANGLE__
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#endif
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#define __STDARG__
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#define __PROTO__(x) x
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#define __OTORP__(x)
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#define __PARAM__(n,o) n
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#if !defined(__STDC__) && !defined(__cplusplus)
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#if !defined(c_plusplus)
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#define const
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#endif
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#define signed
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#define void int
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#define volatile
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#define __V_ char
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#else
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#define __V_ void
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#endif
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#else
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#define __PROTO__(x) ()
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#define __OTORP__(x) x
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#define __PARAM__(n,o) o
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#define __MANGLE__
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#define __V_ char
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#define const
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#define signed
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#define void int
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#define volatile
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#endif
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#if defined(__cplusplus) || defined(c_plusplus)
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#define __VARARG__ ...
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#else
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#define __VARARG__
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#endif
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#if defined(__STDARG__)
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#define __VA_START__(p,a) va_start(p,a)
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#else
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#define __VA_START__(p,a) va_start(p)
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#endif
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#endif
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static const char id[] = "\n@(#)dirname (AT&T Bell Laboratories) 07/17/92\0\n";
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#include <cmdlib.h>
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static void dirname __PARAM__((register Sfio_t *outfile, register const char *pathname), (outfile, pathname)) __OTORP__(register Sfio_t *outfile; register const char *pathname;){
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register const char *last;
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/* go to end of path */
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for(last=pathname; *last; last++);
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/* back over trailing '/' */
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while(last>pathname && *--last=='/') 1;
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/* back over non-slash chars */
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for(;last>pathname && *last!='/';last--);
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if(last==pathname)
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{
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/* all '/' or "" */
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if(*pathname!='/')
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last = pathname = ".";
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/* preserve // */
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else if(pathname[1]=='/')
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last++;
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}
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else
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{
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/* back over trailing '/' */
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for(;*last=='/' && last > pathname; last--);
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/* preserve // */
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if(last==pathname && *pathname=='/' && pathname[1]=='/')
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last++;
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}
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sfwrite(outfile,pathname,last+1-pathname);
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sfputc(outfile,'\n');
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}
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int
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b_dirname __PARAM__((int argc,register char *argv[]), (argc, argv)) __OTORP__(int argc;register char *argv[];){
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register int n;
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NoP(id[0]);
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cmdinit(argv);
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while (n = optget(argv, " pathname")) switch (n)
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{
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case ':':
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error(2, opt_info.arg);
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break;
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case '?':
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error(ERROR_usage(2), opt_info.arg);
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break;
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}
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argv += opt_info.index;
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argc -= opt_info.index;
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if(error_info.errors || argc != 1)
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error(ERROR_usage(2),optusage(NiL));
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dirname(sfstdout,argv[0]);
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return(0);
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}
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