114 lines
3.5 KiB
C
114 lines
3.5 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: CmdUtilityP.c /main/4 1995/10/26 15:02:50 rswiston $ */
|
|
/***************************************************************************
|
|
*
|
|
* File: CmdUtilityP.c
|
|
* Description: Private Utility routines for the command invocation system.
|
|
* Language: C
|
|
*
|
|
** (c) Copyright 1993, 1994 Hewlett-Packard Company
|
|
** (c) Copyright 1993, 1994 International Business Machines Corp.
|
|
** (c) Copyright 1993, 1994 Sun Microsystems, Inc.
|
|
** (c) Copyright 1993, 1994 Novell, Inc.
|
|
***************************************************************************/
|
|
|
|
#include "CmdInvP.h"
|
|
|
|
#include <stdio.h>
|
|
#include <sys/param.h>
|
|
#include <unistd.h>
|
|
#include <limits.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Intrinsic.h>
|
|
#include <Dt/CommandM.h>
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* _DtCmdBuildPathList - this functions builds a list of the path names
|
|
* that are part of the $PATH environment variable. This is done once
|
|
* during initialization and the list is then searched whenever
|
|
* a command is going to be executed.
|
|
*
|
|
* MODIFIED:
|
|
*
|
|
* char **cmd_Globals.path_list; - Initialized or set to NULL if
|
|
* $PATH is undefined
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void
|
|
_DtCmdBuildPathList( void )
|
|
{
|
|
int i=0;
|
|
char *path;
|
|
int indx;
|
|
int n=0, pathLen;
|
|
char *pend, /* Points to the beginning of a directory */
|
|
*pbeg; /* Points to the end of a directory */
|
|
|
|
/* Get the PATH */
|
|
if ((path = (char *) (getenv ("PATH"))) == NULL) {
|
|
cmd_Globals.path_list = (char **) NULL;
|
|
return;
|
|
}
|
|
|
|
pathLen = strlen(path);
|
|
pbeg = path;
|
|
|
|
while (i < pathLen) {
|
|
n++;
|
|
cmd_Globals.path_list = (char **) XtRealloc ((char *)cmd_Globals.path_list, n * sizeof (char *));
|
|
|
|
if ((indx = DtStrcspn (pbeg, ":")) >= pathLen) {
|
|
/* At the end of the path */
|
|
i = pathLen;
|
|
pend = (char *) pbeg + indx;
|
|
}
|
|
else {
|
|
/* Found a ":" */
|
|
pend = (char *) pbeg + indx;
|
|
i += (pend - pbeg) +1;
|
|
}
|
|
|
|
cmd_Globals.path_list[n-1] = (char *) XtMalloc (((pend - pbeg) + 1) *
|
|
sizeof(char));
|
|
(void) strncpy (cmd_Globals.path_list[n-1], pbeg, (pend - pbeg));
|
|
/* Strncpy does not put a '\0' at the EOS if s2 >= s1 */
|
|
cmd_Globals.path_list[n-1][pend-pbeg] = '\0';
|
|
|
|
/* Move past the ":" */
|
|
if (i < pathLen)
|
|
pbeg = pend +1;
|
|
}
|
|
|
|
/* May need to NULL terminate cmd_Globals.path_list */
|
|
if (n > 0) {
|
|
n++;
|
|
cmd_Globals.path_list = (char **) XtRealloc ((char *) cmd_Globals.path_list, n * sizeof (char *));
|
|
cmd_Globals.path_list [n-1] = (char *) NULL;
|
|
}
|
|
}
|