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/* RCS $Id: eold.c,v 1.1.1.1 2000-09-22 15:33:27 hr Exp $
--
-- SYNOPSIS
-- Set up and free for environ
--
-- DESCRIPTION
-- This file contains routines that will fill in and dispose of the
-- list of environmental variables in the environ global variable.
--
-- AUTHOR
-- Dennis Vadura, dvadura@dmake.wticorp.com
--
--
-- WWW
-- http://dmake.wticorp.com/
--
-- COPYRIGHT
-- Copyright (c) 1996,1997 by WTI Corp. All rights reserved.
--
-- This program is NOT free software; you can redistribute it and/or
-- modify it under the terms of the Software License Agreement Provided
-- in the file <distribution-root>/readme/license.txt.
--
-- LOG
-- Use cvs log to obtain detailed change logs.
*/
#include "extern.h"
/*
* Keep track of any environmental variables that have '='s in their
* name.
*/
struct EqualPos {
char *fpPos;
struct equalsign *fpNext;
} /* struct EqualPos */
struct EqualPos *gpEqualList;
/*
* The character used to replae the equal signs.
*/
const char gEqualReplace = '_';
/*
* Set up the environmental variables in a format used by
* the environ global variable.
*
* environ has already been set to main's envp argument when
* this suboroutine is called.
*/
void main_env () {
char **ppCurEnv;
char *pCurPos;
struct equalpos *pNewEqual;
gpEqualList = NULL;
for (ppCurEnv = environ; *ppCurEnv != NULL; ++ppCurEnv) {
for (pCurPos = *ppCurEnv; *pCurPos != '\0'; ++pCurPos) {
if (*pCurPos == '=') {
if ((pNewEqual =
(struct EqualPos *) malloc (sizeof (struct EqualPos))) ==
NULL) {
fputs ("Out of Memory", stderr);
exit (EXIT_FAILURE);
} /* if */
pNewEqual->fpPos = pCurPos;
pNewEqual->fpNext = gpEqualList;
gpEqualList = pNewEqual;
*pCurPos = gEqualReplace;
} /* if */
} /* for */
*pCurPos = '=';
} /* for */
} /* void main_env () */
/*
* Reset the environmental variables so they look like they did
* before the main_env() call.
*
* environ has already been set to main's envp argument when
* this suboroutine is called.
*/
void main_env () {
char **ppCurEnv;
char *pCurPos;
struct equalpos *pNewEqual;
gpEqualList = NULL;
for (ppCurEnv = environ; *ppCurEnv != NULL; ++ppCurEnv) {
for (pCurPos = *ppCurEnv; *pCurPos != '\0'; ++pCurPos) {
if (*pCurPos == '=') {
if ((pNewEqual =
(struct EqualPos *) malloc (sizeof (struct EqualPos))) ==
NULL) {
fputs ("Out of Memory", stderr);
exit (EXIT_FAILURE);
} /* if */
pNewEqual->fpPos = pCurPos;
pNewEqual->fpNext = gpEqualList;
gpEqualList = pNewEqual;
*pCurPos = gEqualReplace;
} /* if */
} /* for */
*pCurPos = '=';
} /* for */
} /* void main_env () */
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