Files
cdesktop/cde/programs/dtksh/ksh93/src/lib/libast/path/pathpath.c
T
2018-04-28 12:30:20 -06:00

136 lines
4.4 KiB
C

/*
* CDE - Common Desktop Environment
*
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these libraries and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/* $XConsortium: pathpath.c /main/2 1996/05/08 19:54:10 drk $ */
/***************************************************************
* *
* AT&T - PROPRIETARY *
* *
* THIS IS PROPRIETARY SOURCE CODE LICENSED BY *
* AT&T CORP. *
* *
* Copyright (c) 1995 AT&T Corp. *
* All Rights Reserved *
* *
* This software is licensed by AT&T Corp. *
* under the terms and conditions of the license in *
* http://www.research.att.com/orgs/ssr/book/reuse *
* *
* This software was created by the *
* Software Engineering Research Department *
* AT&T Bell Laboratories *
* *
* For further information contact *
* gsf@research.att.com *
* *
***************************************************************/
/* : : generated by proto : : */
#if !defined(__PROTO__)
#if defined(__STDC__) || defined(__cplusplus) || defined(_proto) || defined(c_plusplus)
#if defined(__cplusplus)
#define __MANGLE__ "C"
#else
#define __MANGLE__
#endif
#define __STDARG__
#define __PROTO__(x) x
#define __OTORP__(x)
#define __PARAM__(n,o) n
#if !defined(__STDC__) && !defined(__cplusplus)
#if !defined(c_plusplus)
#define const
#endif
#define signed
#define void int
#define volatile
#define __V_ char
#else
#define __V_ void
#endif
#else
#define __PROTO__(x) ()
#define __OTORP__(x) x
#define __PARAM__(n,o) o
#define __MANGLE__
#define __V_ char
#define const
#define signed
#define void int
#define volatile
#endif
#if defined(__cplusplus) || defined(c_plusplus)
#define __VARARG__ ...
#else
#define __VARARG__
#endif
#if defined(__STDARG__)
#define __VA_START__(p,a) va_start(p,a)
#else
#define __VA_START__(p,a) va_start(p)
#endif
#endif
#include <ast.h>
#include <option.h>
char*
pathpath __PARAM__((register char* path, const char* p, const char* a, int mode), (path, p, a, mode)) __OTORP__(register char* path; const char* p; const char* a; int mode;){
register char* s;
char* x;
static char* cmd;
if (*p == '/') a = 0;
else if (s = (char*)a)
{
x = s;
if (strchr(p, '/'))
{
a = p;
p = "..";
}
else a = 0;
if (strchr(s, '/') || ((s = cmd) || opt_info.argv && (s = *opt_info.argv)) && strchr(s, '/') || (s = *environ) && *s++ == '_' && *s++ == '=' && strchr(s, '/') && !strneq(s, "/bin/", 5) && !strneq(s, "/usr/bin/", 9) || *x && !access(x, F_OK) && (s = getenv("PWD")) && *s == '/')
{
if (!cmd) cmd = s;
s = strcopy(path, s);
for (;;)
{
do if (s <= path) goto normal; while (*--s == '/');
do if (s <= path) goto normal; while (*--s != '/');
strcpy(s + 1, "bin");
if (!access(path, F_OK))
{
if (s = pathaccess(path, path, p, a, mode)) return(s);
goto normal;
}
}
normal: ;
}
}
x = !a && strchr(p, '/') ? "" : pathbin();
if (!(s = pathaccess(path, x, p, a, mode)) && !*x && (x = getenv("FPATH")))
s = pathaccess(path, x, p, a, mode);
return(s);
}